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Ua ale aMenan’ |.) | aaaRAAARAAAAA, AA AAAAAAAAA AANA AAAAAAA Aas ~~ ae AAAAAAAAAAAAA aAea A oN = ‘n j AA RARARRARARAA AA AAAAAA: AA LO AFYAI\A AACN AAA AARARRAAAAAEOCRAAAAAARAAAAAAA A NAA AYAAAAAAAARAaaa a AAR am a ANA — Ge i AWW iY , AAAARAAAAAALA | BAAR AR ARAARAAAA lg ATV WY anAanaee Bs La A a A | RARRR AAAs as AAP Ananee ARAAAAAWAA Alon, Aap AAAAANAAA AAA Walaa AAA , ARRAA AANA AAAAAAAANAAR Ma aM anal OY if 1 re in aN Le 4 “ Sea era ee , ANNALS OF THE NEW YORK ACADEMY OF SCLENCES, LATE LYCEUM OF NATURAL HISTORY. VOLUME YVI. ~ 1891-1892. ot oo errant ns NEW YORK: | PUBLISHED BY THE ACADEMY. ree nee Pruss or THe COLLINS PRINTING HOUSE, © ee Philadelphia, 705 Jayne Street, oe OFFICERS OF THE ACADEMY. ite a ae HONORARY PRESIDENT. JOHN S. NEWBERRY. PRESIDENT. OLIVER P. HUBBARD, VICE-PRESIDENTS. J, A. ALLEN, H. C. BOLTON. CORRESPONDING SECRETARY. THOS. L. CASEY. RECORDING SECRETARY. H. T. VULTE. TREASURER. HENRY DUDLEY. COMMITTEE OF PUBLICATION. J. A. ALLEN, JOHN K. REES, Hl. C. BOLTON, D. S. MARTIN, THOS. L. CASEY, Editor. 5) ‘ain ar ‘ Co) Reet was ' eK Read fe Ny . * ? J / a * Te a “yet ng ts — . as y nS sh) oe t ‘ , ' " y ‘A y +. ils j G . a * 7 % Mo u ; ima | Yi - P p F . ‘ k q ; : “ ~ te < : ee x ‘ ws ‘ ' ‘ = ‘ . . ‘ : Vo (fi , 5 Fi Art. Art. Art. Art. Art. Art. Art CONTENTS OF VOLUME VI. BY N. L. BRITTON. IiJ.—The American Species of the Genus Anemone and the Genera _ which have been referred to it . - - 5 es z BY THOS, L. CASEY. I1.—Coleopterological Notices III. . . c . . ; VII.—Coleopterological Notices IV. ° - : ° BY CARL H. EIGENMANN AND ROSA S. EIGENMANN. VI.—A Catalogue of the Fishes of the Pacific Coast of North America North of Cerros Island : : - - 5 - ° BY HAROLD JACOBY. IV.—The Rutherfurd Photographic Measures of the Group of the Pleiades - : : : 3 ; 6 - : ° V.—The Rutherfurd Photographic Measures of the Stars about B Cygni , ‘ : : : c 3 : ; : BY JOHN K. REES. . I.—A Catalogue of Rutherfurd’s Photographic Plates of the Sun, the Moon, and the Stars . : 5 : : ° Nore.—There are no plates accompanying the present volume. 349 | Vol. VI. | December, 1891. No. 1. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, LATE LYCEUM OF NATURAL HISTORY. | Heo Pork: PUBLISHED BY THE ACADEMY. 1891. OFFICERS OF THE ACADEMY. 1890, resident. | JOHN 8S. NEWBERRY. Vice- Presidents, OLIVER P. HUBBARD. SETH LOW. Corresponding Secretary. ° THOMAS L. CASEY. Recording Secretary. H. CARRINGTON BOLTON. @rensnrer. HENRY DUDLEY. Dibrarian. JOHN I. NORTHROP. Committee of Publication. DANIEL 8S. MARTIN, H. C. BOLTON, J.S. NEWBERRY, _ THOS. L. CASEY (Eprror), J. K..REES. aii ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, VOLUME VI. I.—A Catalogue of Rutherfurd’s Photographic Plates of the Sun, the Moon, and the Stars. BY JOHN K. REES. Read March 9, 1891. On November 13th, 1890, Lewis M. Rutherfurd, LL.D., of New York City, presented to the Columbia College Observatory all his photographic negatives taken between the years 1858 and 1878. Many of the plates had been measured, and these measures were included in the gift. The measures fill some thirty quarto volumes. Several years ago (1884) Mr. Rutherfurd gave to the Observatory his 13-inch equatorial with its photographic corrector, with which the photographs, taken since 1868, were made; and at the same time he donated to the Observatory his measuring engine supplied with a glass scale. This improved measuring apparatus was used in January, 1872, and subsequently. The star cluster negatives received an exposure of either three or Six minutes. Each negative bears the date, time of exposure, a record of the barometer and thermometer readings, and other data necessary for the reductions. The Observatory of Columbia College hopes to,issue soon the reductions of many of the measures. Mr. Harold Jacoby aided in the preparation of the catalogue. CotumBiA CoLLEGE OBSERVATORY, New York, March 9, 1891. Annats N. Y. Acap. Scr., VI, June, 1891.—1 2 Rutherfurd’s Photographic Plates. CATALOGUE OF RUTHERFURD’S NEGATIVES DEPOSITED AT COLUMBIA COLLEGE OBSERVATORY, NEW YORK CITY. SUN, NEGATIVES. 1860. April 27; May 4, 23 (two!'), 25, 29 (two); June 6, 8 (two), 23, 26; July 17; Sept. 7; Oct. 24; Nov. 20. 1861. Feb. 19, 27; March 4; April 20 (two), 21, 22 (two), 24 (two), 25, 27, 29; May 2, 14, 30; Junel; July 29; Sept. 26. 1862. June 21. 1866. Feb. 3 (two). 1870. Feb. 16 (two), 17 (two), 23; March 3 (two), 11, 14, 15, 16, 17, 19, 2C, 21, 24, 25, 26 (two), 29, 31; April 6 (two), 7, 8, 12, 13, 15, 16, 20, 26, 305 May 3, 13, 15, 16, 19, 21, 265 dumeva. 18; July 29; August 6, 17, 20, 27 (two), 29; Sept. 1, 19; 20 (three), 23 (two), 24, 26, 28; Oct. 5, 8, 14. 1871. April 17, 18, 21; June 16; July 10, 16, 21, 22, 26> Auenst ie 12, 18 (two), 19. , 1872. Jan. 2; Feb. 5; ‘May 7, 10,17; June 15,927 -dantyacemihme August 10, 12; Sept. 21; Nov. 27. 1874. April 5s. May 7, 10, 15, 19, 27; June 1, 30; July = Sepia Nov. 27; Dec. 9 (two). . Remarks. —139 negatives in the above list. Each negative has the time of exposure marked on the plate. SUN, POSITIVES, AND ENLARGEMENTS OF SUN SPOTS. 9in number. August and Sept. 1871. Sun 1 Ecuipsr. 1860. July 18. 10 negatives. USG0. OCh lo. 9 negatives. TSHh2. Aus. 7. 8 negatives. SOLAR SPECTRUM. 160 negatives, of which 10 are sealed for special protection. 14 positives. Tne Moon, NEGATIVES. 1858. June; Nov. 2; Dec. 16, 20, 22, 24 (two). 1859. Jan. 17 (two); Feb. 10, 13, 14, 16 (two), 18; March 9 (two), 10 (three), 12 (two), 13 (two), 15, 16 (three), 18 (two); April 16 (four), 18 (two); Dee. 8. * This indicates the number of plates taken on May 23. 1860. 1861. 1862. 1863. 1864. 1865. 1866. 1868. 1869. 1870. 1877. Rutherfurd’s Photographic Plates. 3 Feb. 26; Nov. 20, 22. Dec. 18, 20. Jan. 7 (two), 9 (four), 16 (two); Feb. 9 (two), 10, 13 (two), 14, 18 (with Cassegranian telescope); March 4, 8 (two), 9 (three), 12,17; April 6 (three), 10 (two), 12 (two), 13 (three), 14; Dec. 4, 12, 20, 28. | Jan. 7; Feb. 19; April 26; May 1; Dec. 18 (two), 24. Feb. 13 (two); July 19; Sept. 9 (two), 20; Nov. 10, 13, 14 (five) ; Nov. 16 (three), 19, 23, 29; Dec. 4 (four), 12 (six). Jan. 8 (three), 11 (three), 12 (six), 18 (two), 19; Feb. 2 (two), 4 (five), 6 (two), 9 (four), 11 (four); March 5, 6 (seven), 11 (two); May 18; Aug. 4; Nov. 1 (two), 7. Feb. 26; Oct. 28. Oct. 29, 30 (three) ; Nov. 4 (four), 20, 23 (three), 24 (four). August (four). Feb. 12 (three), 16; March 16 (two), 18 (four); April 8 (two), 9 (three), 12 (two), 21 (three); May 12 (three), 14 (two); June 11 (two); July 4, 8 (two), 10 (two), 13 (two); August 6 (two), 7 (two), 13 (two), 14 (two), 15, 17 (two), 19 (two), 20; Sept. 11 (two), 13 (two), 14 (two), 15 (two), 19 (two) ; Oct. 14 (two), 16. Jan. 17; Feb. 28; March 28 (three); May 21, 29; June 26, 27; July 7 (three); August 27, 29; Nov. 2, 25, 27 (three); Dec. 2, 21 (two), 24 (two). Jan. 17, 24 (two); April 6, 16, 19; August 18; Sept. 21, 22 (two) ; Oct. 20 (three) ; Nov. 19 (three), 21 (two) ; Dec. 9, 10. Jan. 9 (two); May 6 (two); June 5; July 4 (three); Nov. 28 (two); Dec. 31 (two). Jan. 24, 25 (two), 27 (two), 31; Feb. 1, 27 (two), 28; March 26 (two), 28 (three), 29 (two); May 21 (two), 22 (two); Sept. 25; Oct. 26 (two) ; Nov. 27 (two). April 14 (two), 17; May 14 (two); June 14 (two); Oct. 18; Nov. 6 (three) ; Nov. 11 (two). Jan. 4 (two), 7 (two), 11 (three), 12 (two); Feb. 5 (two); April 6 (three); June 1 (two), 26; August 4 (two); Nov. 5 (two). Jan. 31; Feb. 21 (four), 27. Remarks.—These moon negatives have the time of exposure on the plates. There are 368 negatives in above list. . THe Moon, SEALED NEGATIVES. 1864. 1865. 1870. 1871. Noy. 13. March 6. March 16; April 21; June 27; Sept. 16 (two); Oct. 13, 15, 16 (two). Feb. 28 (two) ; June 2 (three), 25 (three), 26; August 29 (two) ; Sept. 6; Nov. 18, 25 (two); Dec. 3. 4 Rutherfurd’s Photographie Plates. 1872. Jan. 25; April 19; Sept. 19, 23 (two); Oct. 21. 1873. Nov. 29 (two). 1874. Jan. 24; March 19, 21; May 21 (two). Remarks.—40 sealed negatives in above list. THE Moon, NEGATIVES ENLARGED. 1 plate. POSITIVE ENLARGED. 3 plates. POSITIVES. 1865. Sept. 3; July —; April 3 (two) ; Oct. 5, 6 (two), 8, 10 (six). Remarks.—14 positives'in above list. SEALED POSITIVES. 1870. Sept. 16. 1871. Feb. 28; June 2. 172.) Aprilsl)’: Oct. 21. 1873. Nov. 29. 1874. Jan. 24; May 19, 21, 22. Remarks.—10 plates. MARS AND STARS, NEGATIVES. 1877. August 10 (three), 11 (four) ; Sept. 2 (five), 3 (nine), 4 (four). TRANSIT OF MERCURY, NEGATIVES. 1878. May 6 (twelve). STAR PLATES. y Andromede. 1859. Nov. 29 (two). € Aquarii. 1864. Nov. 16. 31 Aquile. 1870. August 15 (two), 17. 1872. Oct. 29 (two). 16 Aurige. 1877. Feb. 10, 14, 19 (two). a Bootis. 1870. June 24, 31 (two); July 13 (two). 1871. June 17; July.13, 17 (two). 1872. June 17, 30; July 10 (two), 30. 1873. June 26 (two); July 11. 1874. May 19 (three), 28; June 1, 2 (two). 21 Bootis. 1876. May 31; August 12 (three). 44 Bootis. 1868. June 20 (three), 23, 24 (three), 27, 29 (three). 1870. August 14 (two). 1871. July 14, 15 (two). Measured Nov. 1873. 1872. May 31 (two); June 28. 1873. June 18 (two), 19 (two), measured Dec. 1873. — Camelopardi. B. A. C. 1565. a Canis Minoris. 12 Come Berenicis. 1870. eae 1876. — Cassiopeie, — B. A. C. 8083. n Cassiopeie. m@ Cassiopeiz. — Cephei. — Ceti, B. A. C. 793. B Cygni Rutherfurd’s Photographic Plates. 5 1874. 1875. \isze. 1866. one: 1869. 1872. 1874. 1875. 1876. May 17 (six), measured June, 1874. May 27, 28 (two); June 1 (two), measured Oct. 1875. April 17 (two), 21 (two), 22, 26. Feb. 21 (two). April 25 (two), 26. June 2 (three), 4 (two). May 26 (four), 27 (two). Nov. 11, 14 (two), measured Dec. 1873; Nov. 22 (three), measured Jan. 1874. June 1 (two), 12 (two), 13 (two), measured June and July, 1874. ——a July 30 (two); August 4 (two). July 17 (two); Dec. 18. Jan. 2 (two), 5; June 30 (two); | Measured July 19 (two). | in 1873 Jan. 9, 20 (two); July 15 (two), and 1874. 20 (two), 21; Dec. 15 (two), 18 (two), 21. J Nov. 6 (two), 13; Nov. 13, 23 (two), 24 (two). Measured, 1869. July 21 (five) ; August 7 (four), measured 1870 ; Aug. 29 (three), measured 1871; Oct. 31 (two) ; Nov. 25; Nov. 25, measured 1871. Jan. 25, 26 (three), measured 1872; Feb. 16 (two) ; July 23 (two), measured 1872; July 30; July 30, measured 1872; August 4. July 10 (two), 23 (two). | Jan. 2 (two), 5; July 19 (two), Measured 20 (two). 1872, Jan. 6, 9 (two), 10; July 15, 1873, 21 (two), 23 (three); Dec. 18 (two), and 1874. 21 (two). June 28; Oct. 31; Nov. 25 (three). Jan. 6 (two), 9 (two). Jan. 10 (two), 11 (three), 12 (two). July 26 (three) ; Sept. 20 (three). Measured 1875. May 31 (two); June 1 (two); Oct. 24 (three) ; Nov. 4 (two). 6 Rutherfurd’s Photographic Plates. — Cygni, a == 20h 1875. Sept. 27 (three), 29; Nov. 8 (two). s= +31° 53’. — Cygni, a == 19) 380, | rete June 6 (four). § = +27° 7’. — Cygni, SE }19t6 June 7 (two), 14 (two). >= 440°. x Cygni. 1875. Sept. 20, 21 (three), 23 (two); measured 1876. n Cygni, 1875. July 21, 24 (two); Aug. 6 (two); Sept. 23 (three), 21 Cygni. 24 (two), 27 (two). 1876. Junel (four), 19, 21 (three) ; Dec. 3 (two), 5 (two). — Cygni ae = rag 1875. Sept. 24 (three); Oct. 12, 13 (two). B. A. C. 6986. J ee ee ae 27 Cygni. 1874. Nov. 12, 14. B. A. C. 6915. 1875. Oct. 20 (two). 1876. June 21 (four). 34 Cygni. 1875. July 19 (three) ; Oct. 2 (three). 1876. June 15 (four). 37 Cygni. 1875. July 19 (three); Oct. 20 (three). 1876. Nov. 29 (two); Dec. 3 (two), 31. 58 Cygni. 1875. July 30 (three); Nov. 11 (two). 1876. June 22 (two); July 14 (two); Nov. 12 (three), 16 (two). 59 Cygni. 1875. August 5 (three); Nov. 11. 1875. Nov. 17, 22, 24 (near 59 Cygni). 1876. July 22, 24; August 4 (two); Nov. 12 (two), 16 (three). 61 Cygni. 1871... Nov. 9512 (wo). 2 7 1872. Nov. 29; Dec. 15 (two), 17. | Measured 1873. Nov. 15 (two), 20, 22 (three). 1874 and 1874. June 1 (two), 12, 13 (two); illegible | 1875. date (two). | 1876. July 17 (four). 71 Cygni. 1875. August 5 (three); Nov. 24, 25, 27. 1876. July 27 (two); August 5 (two); Nov. 24 (three), 28, 29 (three); Dec. 5 (two). Ruther furd’s Photographic Plates. — Cygni, a == 2) 28m, } 1876. d= 447° 55’. — Cygni, ) ea 202m. j 1876. 3 = +36° 41’. — Cygni,. a == 212 18m, ! 1876. §=+48° 51’. 61 Draconis. 1871. 40 Eridani. 1872. & Herculis. 1870. e« Herculis. 1870. 1 Herculis. 1870. 72 Herculis. 1870. ¢ Lyre. 1860. 70 Ophiuchi. 1870. ¢ Orionis. 1866. 6 Orionis. 1865. — Orionis. 1865. 34 Persei. 1877. Aug. 4 (two); 5 (two). August 9 (four). August 10 (four). Nov. 17 (two). Jan. 5 (two), 6. Jan. 10, 11 (two), 14 (three). August 18; Sept. 6 (two). July 17. Aug. 27 (two). August 19 (two) ; Sept. 6, measured 1872. August 17, 30. August 5 (two). August 14, 15 (two). July 13 (two), 23. May 17, 19 (two). August 30; Sept. 4, 5 (two). August 17, 27, 28. if July 30; August 2 (two), 5. August 7. Nov. 6. Aug. 7. May — (two); June 13 (two), 14 (three). August 11, 17. July 8 (two), 10 (two). Sept. 21 (two). July 11 (two), 15 (two). March 6, measured. March 1 (three), 3 (two). Feb. 24. Jan. 21, 23 (two), 27 (two). Feb. 24. March 6. Jan. 23, 31. Feb. 7, § (three). 8 Rutherfurd’s Photographic Plates. 35 Persei. 1877. Perseus, 1865. (clusters). 1868. 1870. 1873. 1874. Pleiades. 1865. 1866. 1867. 1868. 1872. 1874. Preesepe. 1865. 1866. 1867. 1870. 1877. 41 Serpentis. 1870. 1872. 6 Urse Majoris. 1872. 1873. — Urse Majoris. | 1872. B. A. C. 4010. 1830, Groom- { 1873. bridge. 1874. 82 Urse Majoris. ) 1876. B. A. C. 4564. ) 1877. — Vulpecule. \ 1872. B. A. C. 6654. — Vulpecule. 1870. B. A. C. 6657. 2 1872. — Vulpecule. \ 1874. B; A.C; 67 62; 20 Vulpecule. \ 1874. B. A. C. 6944. Feb. 6 (four). Feb. 18. Nov. 4, 12 (two), 13 (two), 23. March 24 (three), 25 (two). Dec. 2, 18. Jan. 18 (three); Oct. 14 (three), 15; Nov. 6 (two). Nov. 15 (five), 16 (three). . Jan. 1, measured Jan. 1867; Jan. 31 (two); Feb. 21 (two), measured 1866; Feb. 21 (three), 26 (three); March 6 (three), measured Jan. 1867; March 10 (three), measured July, 1866. Jan. 23 (two); 23, 27, measured 1867; Jan. 27; Feb. 7 (three), measured 1867. Oct. 30 (three); Nov. 3, 5, 12, measured 1869 ; Nov. 12, 13 (two), 14 (two), 15 (two), 23. Jan. 9 (two), 26. Measured Nov. 7 (two), 12, 26 (two). 1875. Feb. 21 (two), 27. March 10 (two). Jan. 27; Feb. 3, measured 1867; Feb. 7 (two); April 3. (two), 18. : April 24 (two), 25 (two). April 14, 25 (three); May 2 (three). July 30 (two), 31. Aug. 27, 30 (two). May 27, 31; June 13. May 18 (two), 26 (two). Jan. 5 (two); May 27; June 11, 16 (two). June 8 (two), 9 (two), 12 (two). Jan. 14 (two); Feb. 16 (three) ; June 12, 13 (three), 14 (two). J May 26, 27; August 11 (two), 12 (two). March 5 (two), 7 (three). L Measured 1874. Nov. 13 (two), 17. August 18 (two), 19 (two). Oct. 31. Noy. 12 (two), 16 (three). Noy. 12 (three). IIl.—Coleopterological Notices. III. BY THOS. L. CASEY. Read October 5, 1891. The most important contribution presented in the following paper, at least from a systematic standpoint, is a review of the Cistelide of the United States, but I feel only too fully that the discussion of the species of a local fauna, however complete and well intended it may be, can count but scarcely more than as a letter in the alpha- bet of a general monograph. In the absence of representatives from other parts of the earth, we labor to a great extent blindly in the delimitation of the higher groups, and in selecting proper structural characters for the differentiation of the genera. For various reasons, however, the accumulation of the necessary material for a general revision of any family of Coleoptera, is now an exceedingly difficult matter, and this difficulty is, with the present system of museum management throughout the world, a constantly increasing one. Whether or not we are to have any more epoch- making monographs, is becoming largely a question for the museums to decide, for it is here that material is principally accumulating. These reflections cal] to mind another feature of the case, in which this restrictive policy of the museums is to a great degree embar- rassing, and which concerns us on this side of the Atlantic more particularly—lI refer to the American types of Mannerheim, Maklin, Hschscholtz, and Motschulsky. These are now reposing in extreme security within some almost inaccessible European museums, where they are practically never disturbed, but if transferred to an Ameri- can museum where they could at least be occasionally examined by our working entomologists, it would be a vast aid to us and would be a loss scarcely at all appreciable to them. I go so far as to say that all satisfactory study on our part in certain directions is com- pletely checked, because of the absence of these types; from an Annais N. Y. Acap. Scr., VI, Nov. 1891.—2 10 Coleopterological Notices, III. equitable and reasonably liberal point of view they should be placed in our keeping, for the descriptions to which they answer are in general quite insufficient, and are often worse than useless from inaccuracy of statement. After this short and I trust pardonable digression, it only remains to be said, that the present opportunity has been taken to publish the descriptions of some other more or less interesting species, mainly in the Longicornia and Heteromera. New York, August 18, 1891. Note. In a report of the proceedings of the Second Ornithological Congress (Nature, No. 1129, p. 153), it is stated that among other resolutions favorably passed upon was the ‘‘adoption of names, even faulty in construction or misspelt, with all the consequences.’’ The phrase ‘‘with all the consequences’’ affords a convenient pretext for the further discussion of certain matters concerning nomenclature, which I have previously touched upon to some extent. The designation of every species consists of two distinct parts: the generic symbol and the specific name. The former need not necessarily have any meaning whatever, the latter always must have a meaning; we should there- fore apply to these two parts rules which are somewhat different. I apply the word ‘‘ symbol’’ to the generic designation, because the latter is not a word in the ordinary sense of being a combination of letters possessing linguistic meaning, but is simply a codrdination of letters, the sole conditions of which are that of being readily pronounceable, or consisting of consonants and vowels harmoniously arranged, and of having a Latin termination, in order to determine generic endings in the specific name. Even this last condition has not been strictly complied with, as a great many generic symbols have Greek or barbarian terminations, often necessitating the arbitrary determina- tion of gender; nevertheless, words with endings which are neither Latin nor Greek, such as Marail Less. and Lemming Cuv., should not be admitted. The earliest printed symbol satisfying these conditions should be the one adopted. The specific designation is, however, a word taken from the Latin, or from any other language through the Latin by universal agreement, in order to avoid the undue favoring of any of the languages at present in use, and the inevitable discordances of opinion which would result therefrom. As one of the prime conditions of the specific name is that it shall have a meaning, and must therefore be linguistic in form and origin, there can be no objection to the alteration of the printed word to suit the proper rules of orthography or gender, when the intentions of the imposer of the name are evident. There are, in fact, on the ground of uniformity and simplicity, many reasons why this should be done, and why rules should be laid down and followed for writing specific names derived from various sources. Coleopterological Notices, IT. 31 Now let us ask the question: Upon what foundation principle does the permanence and inflexibility of our nomenclature depend ’—for no scientific notation or symbolization in any branch of human investigation can be of value, which is not put beyond the power of individual opinion to alter at pleasure. This question seems to be easily answerable if (1) we agree to adopt the earliest properly published combination of letters intended to represent any particular genus, and (2) if we formulate invariable rules for writing specific -names, but is apparently unanswerable under any other conditions. If a writer be permitted to alter the original spelling of a generic symbol on the ground of incorrect orthography, we at once dispel any hope of permanence in nomenclature, and open the door to new argument and discussion which may result in a subsequent author giving a third designation, based upon his own conception of the hypothetical intentions of the original namer, and so on without end to the ultimate destruction of all semblance of stability: for there are differences of opinion as to the proper spelling of certain words in all languages. If it be asked why the generic symbol need have no meaning in any lan- guage which has ever existed, while the specific designation is required to have a meaning in or through the Latin, it may be answered that it simply results from the condition of nomenclature as we find it to-day. One need but glancé over a small portion of the great Munich Catalogue, to see that the proportion of generic words of unknown or dubious etymology, is so great as to give character to the whole, and to necessitate the rule that generic words must simply be considered harmonious combinations. In regard to the specific names, however, we can perceive at once that the proportion of words among them which are devoid of meaning or withdrawn from the influence of linguistic rules, is not large enough to have any weight at all. - In view of these facts, it is quite incomprehensible how the original generic symbols Brentus, Sitona, Monochamus, Leiopus, Leichenum and a host of others, could have been changed as they have been. Are not the words noted harmonious combinations, and, as such, are they not as much entitled to stand as Brenthus, Sitones, Monohammus, Liopus, and Lichenum? We must go back to the original mode of spelling generic names before nomenclature can be placed upon an absolutely stable foundation. The next catalogue similar in scope to the Munich Catalogue, will be the first suitable opportunity for effecting this change, and it is hoped that the liberties in spelling which have been proposed in the one alluded to, and which constitute its only serious blemish, will not be repeated. Other questions involving more or less difference of opinion occasionally arise, as for instance whether generic names, differing only in termination by reason of gender or derivation, as for example Oplocephala and Oplocephalus, Platycerus and Platyceras, or Tylas and Tylos, should be maintained as dis- tinct. As the words become shorter such differences of ending constitute a great part of the entire symbol. Ulus, for example, is quite a different word from Ula, Ixus from Ixa, Janus from Jana, and numerous such resemblances exist at present, but if we admit that Ulus and Ula are satisfactory as generic 12 Coleopterological Notices, ITI. symbols, and there can be but little doubt that they are, we must also admit Oplocephala and Oplocephalus; we should have absolute and consistent law throughout. I believe the difficulty can be overcome if we hold that generic symbols are not words in any sense, but constants, analogous to the constants of a mathematical formula; that they form part of no language,— although Latin by induction, and that they are completely indeclinable, except when used in the genitive as specific names or in the nominative plural as group names. Under these circumstances Ulus and Ula would be distinct and different combinations of letters, and could be maintained as genera with perfect propriety. The Ornithological Congress has passed favorably upon the trinomial nomen- clature. In regard to this it need only be said that the admission is a dan- gerous one, for it will result finally in names including four, five or even six words, and nomenclature will gradually become involved in a web of its own weaving. If the trinomial nomenclature is admitted, it should only be with the understanding that either the specific or subspecific name be bracketed. Our system should remain essentially binomial. CUCUJIDA. LYCTUS Fab. The characters given by me (Ann. N. Y. Acad. Sci., V, p. 324), to distinguish the two genera Lyctus and Trogoxylon, I find to be of no value, for, while applicable to the latter as represented by parallelopipedus, the distance separating the anterior coxe gradu- ally diminishes through calzfornicus and punctatus to the slight prosternal width characterizing cavicollis and others. So also in regard to the external prominence of the anterior tibie at apex, not at all discernable in curtulus and a little more pronounced in paral- lelopipedus, it becomes normally prominent in punctatus, this char- acter not having the value here which it has in Eurymetopon. The elytral punctures are completely devoid of serial arrangement in parallelopipedus, have a slight tendency thereto in punctatus, and are distinctly seriate in californicus. There are the same grada- tions in regard to the prominence of the apical angles of the pro- thorax. / I am forced therefore to regard 'Trogoxylon as a synonym of Lyctus, and, a few new forms having been recently received, the pvesent opportunity is taken to give a complete statement of our species as far as known :— Coleopterological Notices, IIT. 13 Elytra with series of large rounded shallow punctures, the intervals each with a single series of small coarsely setigerous punctures................Striatus Elytra without series of large shallow punctures, the punctuation however having a more or less distinct serial arrangement. Apical angles of the prothorax rounded. Prothorax longer than wide, not or extremely feebly and narrowly im- pressed ; body ferruginous .......sccseccssscevercccecsccseceecsees ee OPACLUS Prothorax quadrate. Ferruginous ; pronotum broadly, rather strongly impressed. cavicollis Black; pronotum more shining, more sparsely punctate, less convex and less impressed along the middle....................... Pplamicollis Prothorax much wider than long, nearly as wide as the elytra; body files a eR ee cte sini sacciag these admnawioiiboirens +g hie somsaciaedweeicansnelace sos PPL WULLUES Apical angles of the prothorax not rounded. Larger species; eyes large; elytral series well marked......... carolincze Small species ; eyes small ; elytral series more feebly defined. californicus Elytra with the punctures denser, confusedly arranged or without distinct serial arrangement; apical angles of the prothorax not rounded. Prothorax as long as wide or extremely nearly so; anterior cox widely separated. Anterior tibie gradually much broader from base to apex, not everted externally ; basal angles of the prothorax narrowly rounded. curtulus Anterior tibie slender, gradually but slightly broader, and finely, exter- nally everted at apex ; basal angles of the prothorax not rounded. parallelopipedus Prothorax much wider than lomg.........ccccocescccccecceerececccveee PUMCTACUS In the genus Lyctus the slight serricorn affinity indicated perhaps through some extinct or undiscovered genus allied to Psoa, is par- allel to the melyride affinity of Berginus, as shown by its general habitus, and means nothing more, the two affinities being about equally pronounced. L. caroline n. sp.—Parallel, moderately slender, rather convex, ferru- ginous, the head and prothorax darker than the elytra; integuments shining, the vestiture rather inconspicuous, yellowish. Head rather coarsely, moder- ately densely punctate; antenne slender, one-half longer than the head, the club moderate, joints three to five subequal, nearly twice as long as wide. Prothorax about as long as wide, the apex distinctly wider than the base, evenly, strongly arcuate throughout ; base broadly but less strongly arcuate ; sides feebly convergent from the apical to the basal angles and just visibly sinuate throughout; apical angles feebly, laterally prominent, right, very slightly blunt but not rounded; basal angles slightly obtuse but not at all 14 Coleopterological Notices, ILI. rounded; disk feebly convex, broadly, distinctly impressed along the middle, rather coarsely, deeply and densely punctate, the interspaces narrow but polished ; pubescence short and rather sparse. Elytra about three times as long as the prothorax and but just visibly wider than the latter, about two and one-third times as long as wide, parallel, the sides straight, very abruptly and obtusely rounded behind, the humeri right, narrowly rounded and rather broadly exposed; disk cylindrically convex, the punctures rather fine but deep, slightly oval, unevenly aggregated in narrow distinct series, but con- fusedly arranged near the suture, more broadly so toward base, the intervals between the series minutely, confusedly and sparsely punctate, the sete rather short, fine and recumbent, the series apparently feebly impressed. Abdomen shining, minutely, rather densely and unevenly punctate. Anterior coxe separated by fully one-third their own width ; anterior tibie strongly and externally produced at apex. Length 3.8 mm.;. width.1.0 mm. South Carolina. Mr. Morrison. A single specimen. This species is easily distinguishable from striatus, which it perhaps most closely resembles, by its entirely different elytral punctuation and thoracic structure. L. californicus n. sp. (Crotch MS.).—Rather slender, parallel, some- what strongly depressed, castaneous to piceous-black, strongly shining; pubes- cence not conspicuous. Head transverse, somewhat coarsely and densely but shallowly punctured, the epistomal suture deep, transverse, the epistoma short, almost impunctate, polished; eyes rather small, convex; antenne slender, compact, almost glabrous, one-half longer than the head, the elub small and slender. JProthorax as long as wide, feebly narrowed from apex to base, the apex broadly, strongly arcuate, the base subtruneate ; sides straight, minutely denticulate throughout; apical angles right, not rounded, basal slightly obtuse, minutely denticuliform and prominent; disk feebly convex, broadly, feebly impressed in the middle and finely canaliculate near the base, coarsely punctate, the punctures not very dense, shallow, becoming fine and sparse anteriorly especiaily toward the middle; pubescence coarse but sparse. Elytra a little less than three times as long as the prothorax and but very little wider, a little more than twice as long as wide, parallel, the sides straight, feebly convergent and arcuate toward apex, the latter rather nar- rowly subtruncate ; humeri right, scarcely at all rounded, distinctly exposed ; disk moderately convex, polished, rather finely, sparsely punctate, the punc- tures deep but narrow and elongate, arranged in subeven single rows except toward the suture and base, where they are confused, the intervals not perceptibly punctate, the coarse sparse recumbent set entirely filling the punctures and rather irregularly distributed. Abdomen polished, excessively minutely and sparsely punctate. Anterior cox widely separated, the pro- sternum polished and almost completely impunctate. Auterior tibie strongly broadening toward apex, the apical angle acute and distinctly prolonged out- wardly. Length 2.2-2.5 mm.; width 0.65 mm. Coleopterological Notices, ITT. 15 California (Fort Yuma). Mr. H. F. Wickham. One of the two specimens before me has the prothorax more strongly narrowed behind than the type above described, the differ- ence being probably sexual in nature. It will be observed that the characters of this species are quite composite, the outer apical angle of the anterior tibize being prolonged and acute, the elytral punc- tures distinctly seria] in arrangement, and the anterior coxe widely separated. It is the smallest of the genus known to me from our territories. L. curtulus n. sp.—Parallel, rather depressed, pale brownish-testaceous throughout, moderately shining, the vestiture coarse, yellowish, moderately long and dense and somewhat conspicuous. Head rather coarsely, very densely punctate, the epistoma less densely so, the suture very deep, broadly arcuate ; eyes moderate in size and prominence; antenne stout, nearly one-half longer than the head, the third and fourth joints subequal and each rather distinctly shorter than the fifth, club small but robust, oval and rather compact. Pro- thorax as long as wide, distinctly narrowed from apex to base, the apex broadly, strongly arcuate; base very feebly arcuate; sides straight; apical angles very slightly obtuse, not rounded although slightly blunt, basal more broadly obtuse and decidedly blunt; disk feebly convex, broadly feebly impressed in the middle except toward apex, with a fine deep canaliculation near the base, moderately coarsely, very densely punctate, a little more sparsely so near the apical margin. Elytra two and one-half times longer than the prothorax and scarcely at all wider than the latter, not distinctly more than twice as long as wide, the apex broadly, abruptly and obtusely rounded; humeri right, not rounded but a little blunt; sides straight; disk rather closely, confusedly punctate, with two or three feebly defined, narrow, impunctate lines on each. Abdomen polished, minutely and very sparsely punctate. Anterior coxe rather widely separated, the prosternum polished and almost impunctate, the hypo- mera rather finely and very densely so throughout. Anterior tibie gradually much broader from base to apex but with the exterior angle not at all pro- duced outwardly. Length 2.7 mm.; width 0.8 mm. California. The two or three narrow, slightly oblique, impunctate lines on each elytron, is a character which is also sometimes observable in paralleloptpedus and punctatus but much less distinctly. The present species differs from californicus in its broader form, denser punctuation especially of the hypomera and elytra, in its more nar- rowly separated anterior cox, and in its uneverted exterior apical angles of the anterior tibiz, as well as in its stouter antenne with much larger club and in its slightly larger but less convex eyes. L. punctatus Lec. from Cape San Lucas is a remarkably aberrant 16 Coleopterological Notices, III. species, broader and more convex in form than any of the others, and with the elytra narrowed from apical third, more narrowly sub- truncate and broadly arcuate at apex. The head is transverse, with the eyes moderate in size and strongly convex, the antenne stout, nearly normal in size and structure but with the clnb parallel, the - epistomal suture very fine and scarcely perceptibly impressed. The prothorax is much wider than long, nearly as wide as the elytra, feebly narrowed from apex to base and with the sides feebly, evenly arcuate throughout, the disk being feebly impressed in the middle toward base. ‘The elvtra are not quite twice as long as wide, very coarsely deeply and confusedly punctate, the punctures toward base becoming dense and subcoalescent. The abdomen is polished, minutely and sparsely punctate, the prosternum polished, rather strongly but sparsely punctate, the process being rather broad between the cox. The anterior tibize have the exterior apical angle prolonged outwardly and acute. The head and pronotum — are rather coarsely and densely and unusually deeply punctured, and each puncture of the entire upper surface bears a short robust erect seta, which is coarsely plumose or bushy in structure. The feebly marked epistomal suture, parallel antennal club and peculiar vestiture may perhaps warrant the generic isolation of this species, in which event the name Trogoxylon Lec. could be appropriately adopted for it. ELATERIDA. CHALCOLEPIDIUS Ksch. The following species belongs near webbi Lec., but is much larger :— C. apacheanus n. sp.—Moderately slender and convex, smooth, polished, intense black throughout, clothed rather densely with small robust recumbent and squamiform hairs, which are strongly convex and finely pointed, dark bluish in color, giving a deep violet-blue bloom to the surface, the lateral edges of the pronotum rather broadly, and of the elytra very narrowly, clothed with dense white recumbent pubescence, the white border abruptly limited. Head strongly impressed, rather coarsely, deeply, sparsely punctate, the interspaces very finely, densely punctate ; antenne short, two- thirds as long as the prothorax, pruinose with violet-blue, the third joint but slightly shorter than the fourth. Prothorax one-fifth longer than wide, in form nearly as in webbi, very finely, moderately closely punctate throughout and with scattered coarser punctures anteriorly, especially toward the sides. Scutellum a little wider than long, polished. lytra in form and relation to Coleopterological Notices, ITT. 17 the prothorax nearly as in webbi, polished, very minutely feebly and rather sparsely punctured, with somewhat uneven, completely unimpressed series of fine, rather distant punctures. Under surface polished, pruinose with violet- blue toward the sides, minutely, feebly punctulate. Length 36.0-38.0 mm. ; width 12.0-12.5 mm. Arizona (Fort Apache). This species differs from webbi, in addition to its very much larger size, in the decidedly longer third antennal joint in the male, more minutely punctulate surface with the pronotum coarsely punctate anteriorly, in the strong impression of the head, in the abruptly limited and much narrower marginal white vitte, and in the sparser and deep violet-blue vestiture, the latter being extremely dense, paler and olive-green in webbi. Together with webbi, it belongs to Section III of Candeze, and in the vicinity of carcumductus, from which it differs in its entirely flat and not alternately convex elytral intervals. SCARAB AID A. POLYPHYLLA JHarris. The western species which are homologues of decimlineata in ornamentation, may be easily identified as follows :— Antennal club of the male very large, fully three times as long as the stem; vestiture more or less strongly squamiform. Antennal club of the female nearly as long as the entire stem; ere in both sexes pilose and very sparsely Squamose............0.0++++--SPeCClOSa Antennal club of the female about one-half as long as the stem; pygidium in both sexes densely squamose, not at all pilose, with a narrow denuded Maeda VME... 61. cos c000e oe cecceccecceccsccssecsecserseees GECeEMIineata Antennal club of ie aie ne ane not more sae twice as long as the stem; vestiture less strongly squamiform. Pygidium of the male with the edge strongly reflexed at and toward the apical angle; elytral vitte always dense and distinctly limited; color generally castaneous; spurs of the hind tibie extremely unequal, the - longer nearly twice as long as the shorter and generally bent...crimita Pygidium of the male with the edge not reflexed at apex; elytral vitte more or less unevenly disintegrated ; color piceous-black ; spurs of the hind tibiz much smaller, straight and subequal................diffracta My series of decimlineata is very full, embracing specimens from Puget Sound, California, New Mexico, Texas and San Luis Potosi, and throughout this region there is but slight variability exhibited in either sex. Speciosa is a remarkable species, distinct from decim- 18 Coleopterological Notices, IIT. lineata in its larger size, broader and more depressed form and sparser vestiture, in addition to the characters given in the table. Crinita seems to be comparatively limited in range, all the speci- mens which I have seen being from Southern California. The following is allied to crinita :— P. diffracta n. sp.—Oval, strongly convex, piceous-black, polished, the vestiture consisting of very narrow, extremely sparsely scattered scales inter- mingled with longer erect hairs on the pronotum, the latter trivittate, each elytron with a very narrow sutural and three discal vitte of denser white seales, also a short humeral vitta which is more or less evanescent, but some- times prolonged, the elytral vittz more or less disintegrated and uneven. Head coarsely, densely punctate, the clypeus broadly reflexed, extremely broadly, feebly bisinuate at apex and very densely clothed with yellow squa- mose pubescence. Prothorax twice as wide as long, the apex broadly emargi- nate and much narrower than the base; sides broadly subangulate; lateral vitta interrupted anteriorly. lytra about three times as long as the protho- rax, and, in the middle, one-third wider than the latter, rather finely, sparsely punctate and subrugulose. Pygidium slightly wider than long, very densely squamulo-pubescent except toward the sides, where it is very sparsely so, also with asubdenuded median line. Length 21.0-24.0 mm.; width 10.3-11.3 mm. New Mexico (probably near Las Vegas). | | The two specimens before me are males; there is another in the cabinet of Mr. Jiilich in which the elytral vitte are still more dis- integrated. The antennal club of the male is still somewhat smaller than in crinita. Subvittata and hammondi of LeConte are easily distinguishable from each other by the antennal character separating decimlineata and crinita. The male club in subvitiata is fully three times as long as the stem, and in hammondz but slightly more than twice as long as the latter; there are differences also in the general character of the elytral ornamentation, form of the clypeus, size and other characters, showing that the two species are without doubt dis- tinct. Mr. Dunn, who has taken both of them abundantly, states that they are never found together. THYCE Lec. With increased care in collecting, the species of this interesting genus are becoming somewhat numerous on the Pacific coast, where they replace Lachnosterna to some extent. The species appear to be more nocturnal than crepuscular in habit, and, although proba- Coleopterologieal Notices, ITT. | Uy) bly constituting a moderately large genus, are unquestionably much less numerous than those of Lachnosterna. The two following species have been received since my last refer- ence to the genus :— TN. Dlaisdelli n. sp.—Robust, moderately convex, form nearly as in fossiger, rather shining, pale rufo-castaneous in color, the humeri and under surface blackish ; vestiture pale ochreous in color. Male.—Head, excluding the eyes, subquadrate, but slightly wider than long, very densely clothed with short robust pubescence and long erect hairs ; clypeus moderately refiexed, very feebly sinuate, the angles broadly rounded ; antennz moderate, the club slender, straight, a little shorter than the stem ; fourth joint of the maxillary palpi unusually robust, oval, twice as long as wide, about three-fourths as long as the antennal club, the groove wide, deep, extending from base to apex, two and one-half times as long as wide, the bottom broadly, evenly concave and alutaceous in lustre. Prothorax two-thirds wider than long, broadly lobed at base and subangulate at the sides, some- what coarsely and densely punctate, clothed rather densely with robust squamiform pubescence and fine, moderately long erect hairs. Scutellum densely punctate and squamose. Flytra about one-third longer than wide and nearly one-half wider than the prothorax, the apex broadly subtruncate ; sides feebly arcuate ; humeral callus rather prominent; disk shining, moder- ately densely and unevenly punctate and subrugulose, the punctures some- what strong, the vestiture consisting of short recumbent moderately densely placed hairs, which are robust but not at all squamiform. Pygidium finely, densely punctate and clothed like the elytra. Addomen finely, densely punc- tate and very densely squamulo-pubescent, the vestiture whiter than that of the upper surface; sterna with the usual long silken pile. Legs rather short, the posterior tarsi distinctly shorter than the tibia ; ungual teeth of the corresponding tarsi very unequal, the anterior twice as long as the posterior. Length 20.0-23.0 mm. ; width 9.4-11.0 mm. California (Coronado, San Diego Co.). Dr. F. E. Blaisdell. This species, which is represented by the male only, is somewhat allied to fossiger, but differs in its more robust and less densely placed elytral vestiture, shorter, much broader terminal joint of the maxillary palpi and in its shorter posterior tarsi. I have before me a female, pale brownish-rufous in color, strongly shining throughout, with the elytral pubescence excessively fine and sparse, much shorter and finer than in squamicollis, but about twice as dense as in that species. It was taken at Los Angeles and probably represents still another species which it would not be advisable to describe in the absence of the male. It may possibly be the female of the present species. 20 Coleopterological Notices, IIT. T. squamosa n. sp.—Oblong-oval, strongly convex, piceous-black ; integuments shining. Male.—Head densely punctate, clothed with long erect hair and shorter recumbent squamiform hairs, the vestiture of the clypeus a little sparser ; vertex not tuberculate; clypeus broadly, feebly sinuate, strongly reflexed, the angles obtuse and but slightly marked; antenne moderate, the club nearly three-fourths as long as the stem; fourth joint of the maxillary palpi very long, fully one-third longer than the antennal club, with a narrow, very deep, parallel-sided groove throughout the length. Prothorax one-half wider than long, the apex broadly, evenly emarginate, fully one-half as wide as the base, the latter broadly subangulate ; sides broadly subangulate, the margins strongly reflexed toward base, feebly serrate; apical angles narrowly rounded, basal rather obtuse and broadly rounded; disk very strongly con- vex, narrowly impressed along the middle, coarsely, densely punctate, clothed with long erect hair and long robust recumbent and squamiform pubescence, which is dense along the median line except near the base. Scutellum densely punctate and squamose. lytra one-third longer than wide, one-third wider than the prothorax, subparallel; sides feebly arcuate ; humeri rounded ; apex broadly subtruncate; disk finely, somewhat densely punctate and clothed with distinct pointed scales. Pygidium slightly wider than long, convex, densely clothed with long narrow scales and short hairs. Abdomen somewhat densely clothed with elongate scales and short hairs, the sterna densely pilose. Legs moderately slender; hind tarsi fully as long as the tibiew, with the tooth of the anterior claw nearly twice as long as that of the posterior. Female.—ULarger and stouter than the male, the vertex tuberculate, the antennal club small and oval, the fourth joint of the maxillary palpi three- fourths as long as the latter, elongate-triangular, with a narrow deep elongate groove not quite attaining the base or apex ; pygidium much wider than long; anterior tibize robust; hind tarsi two-thirds as long as the tibiw, the teeth of the claws small and more nearly equal. Vestiture throughout consisting of minute recumbent hairs, sparsely placed, with erect hair as in the male. Length 20.0-23.0 mm.; width 9.3-11.3 mm. California (San Luis Obispo Co.). A distinct species, somewhat related to harfordi, but easily dis- tinguishable by many characters of both sexes. The tubercle of the vertex is, throughout the genus, particularly characteristic of the female. CERAMBYCID &. ERGATES Serv. Subgen. TricHocnemis Lec. The principal character upon which reliance was placed in sepa- rating neomexicanus from spiculatus, is rendered somewhat doubt- Coleopterological Notices, ITI. 21 ful from the fact that similar differences, in the male sexual charac- ters at the apex of the abdomen, are observable in specimens appa- rentlv taken in the same locality. I have observed them in examples said to have been collected in Oregon, and forming part of the cabi- net of Mr. Ulke, and Dr. Horn states (Tr. Am. Ent. Soc., XVIII, p. 41) that they are equally visible in specimens in his own cabinet taken in Vancouver Island. Nevertheless there are some circumstances which lead me to believe that this is not a case of ordinary fortuitous variation, the chief of which is the apparent want of any known male specimen in which the modification of the fifth segment is truly intermediate between the forms figured on Plate IV, Vol. V, of these Annals. Another singular fact is the remarkable disparity in general form and several important structural characters, as exhibited in the assumed male type of spzculatus—represented by a specimen in my cabinet taken near the shores of Cour d’Aléne Lake, Idaho— and the specimens taken by Mr. Meeske at Las Vegas, New Mexico. Not being able, therefore, to be fully satisfied that the species described by me as neomexicanus is actually the same as spiculatus, it seems only right that the question should be held in abeyance until more material can be collected in both of these, as well as in other, localities. When this is done, and if it be then proved that the two names are truly synonymous, I believe that it will be demonstrated at the same time that the male of spiculatus is dimorphous.' PRIONUS Geoff. The following species is allied to imbricornis :— P. debilis n. sp.—Narrow, subparallel, rufo-testaceous, the elytra pale brownish flavate, thin and almost coriaceous; lustre moderately shining. 1 Since this was written I have compared the females of the two forms in question, and find that the mandibles of spiculatus are bidentate internally, the teeth being situated before and behind the middle respectively, while in neomexicanus there is but one tooth, situated at the middle; in the latter the basal joint of the antenne is much shorter than in the former in both sexes, but especially in the female. Having in mind the comparative constancy of female structural characters, these observations tend to materially strengthen my original position, in regarding. the two specimens of spiculatus and four of neomexicanus which I have before me, as representative of two distinct but rather closely allied species. Spiculatus inhabits the Pacific districts, extend- ing inland toward the north and descending along the Rocky Mountains as far as Colorado; to the southward of this limit it is replaced by neomexicanus. 22 Coleopterological Notices, IIT. Head coarsely, deeply punctate, sparsely so behind ; eyes separated above by three-fourths of their own width ; antenne (male) two-thirds as long as the body, nearly as in imbricornis, 18-19 jointed. Prothorar more than twice as wide as long, two-thirds wider than the head and three-fourths as wide as the elytra; base and apex equal, transverse, each feebly sinuate laterally ; sides parallel, feebly dentate at base and apex and also just before the middle; disk rather finely and sparsely punctate. lytra twice as long as wide, parallel, the sides feebly arcuate, obtusely rounded behind, narrowly dehis- cent from basal third or fourth; inner apical angle obtuse, with scarcely an indication of the everted tooth of embricornis; disk coarsely, deeply, subrugu- losely punctate. Legs slender, posterior tarsi very slender, the under surface densely pubescent only in two small spots at the apices of joints one to three. Length 20.0-24.0 mm.; width 8.0-9.5 mm. Indiana; Missouri; Kansas. Represented by a very homogeneous series of seven male speci- mens from the Levette cabinet; I have not seen the female. This species is allied to ¢mbricornis, having nearly the same antennal structure, but differs in its much smaller size, narrower, more parallel and less convex form, less chitinized and paler elytra, in the more widely separated eyes and in the vestiture of the hind tarsi. In the normal forms of imbricornis—for there seems to be at least one undescribed variety of this species before me—the eyes are separated above by much less than one-half of their own width, and the posterior tarsi are densely pubescent throughout joints one to three, in a widely divided line except toward the base of the first joint. The upper surface of the antenne is much more coarsely and sparsely punctate throughout in debilis than in tmbricornis, this being one of the most striking and constant of the differential characters. TETROPIUM Kirby. The species before me may be recognized as follows—the char- acters throughout being taken from the female, except when other- wise mentioned :— Elytra wider than the prothorax; third antennal joint in the male much longer than the second. Third antennal joint (female) pyriform, unusually short, scarcely twice as long as wide; pronotum very pap oe except laterally; elytra PEON AN iW DAIG ycetcbaseceides.s carevplasd abacus dactee heeiias . Cinnamopterum Third antennal sata (iernaley, much more olonieate always distinctly more than twice as long as wide; pronotum very densely punctate. Coleopterological Notices, ITI. 23 Pronotum with a narrow and abruptly limited median impunctate area toward base, which is subcarinate; elytra generally pale. parallelum Pronotum without a median impunctate area except narrowly and vaguely toward base; elytra usually concolorous. Sides of the prothorax broadly rounded ; pygidium evenly parabolic. schwarzianum Sides of the prothorax vaguely subangulate in the middle, the punc- tuation very fine, oe dense; pygidium triangular with the apex narrowly Subtruncate ........00cceeceseessceecee . Vvelutinum Elytra not wider than the Manca eed Seine fae of the male but slightly shorter than the third, the latter equal in length to the fourth. parvulum The forms of Tetropium here mentioned seem certainly worthy of recognition, and as far as can be perceived are as distinct as is usually the case in the allied genera. The color of the elytra varies, it is true, as is usual in this part of the Cerambicide, but the char- acteristics of sculpture and structure upon which the species have been separated, are of more permanent value. The genus will probably prove to be more fully developed in our fauna than in the European. T. parallelum n. sp.—Elongate, moderately convex, parallel, piceous- black, the elytra paler and uniform red-brown, rather dull throughout, the pubescence short, very dense. Head densely punctate, the longitudinal fron- tal groove feeble; antenne nearly one-half as long as the body, moderately incrassate toward base. Jrothorax slightly wider than long, the apex and base truncate, the former much the wider; sides broadly, obtusely angulate at the middle; thence feebly convergent to the apex, more strongly so to the base and almost straight; disk longitudinally, distinctly impressed in the middle, finely, very densely punctate, extremely Gensely so laterally and toward base except along a narrow tumid median line. Scutellum shining, finely, rather densely punctate. Hlytra two and one-half times as long as wide, about one-fourth wider than the prothorax, the apex obtusely and abruptly rounded. Legs moderate in length, rather densely pubescent. Pygidium triangular, with the apex SLIME uncate. Length 12.0-14.0 mm. ; width 3.3-3.8 mm. 9°. Colorado; New Mexico. Represented by three females which agree perfectly among them- selves. Parallelum slightly resembles cinnamopterum, but differs in its larger size, more elongate elytra and in the characters given in the table; it is more southern in habitat than cinnamopterum, which is represented before me by both sexes from Canada and 24 Coleopterological Notices, ITT. New Hampshire. In the male of cinnamopterum the pronotal punctuation is still sparser than in the female. T. schwarzianum un. sp.—Robust, the elytra somewhat depressed, piceous-black and rather dull throughout, the pubescence short and dense. Head moderately densely and somewhat unevenly punctate; antenne nearly one-half as long as the body, the second joint nearly two-thirds as long as the third, the latter feebly swollen toward apex. Prothorar but little wider than long, the apex wider than the base, both truncate; sides broadly, strongly arcuate, becoming convergent and straighter toward base and apex; disk con- stricted just before the base, rather strongly, deeply punctured throughout, the punctures generally separated by about twice their widths but denser laterally and toward base, with a more or less narrow uneven impunctate area toward base, which is not at all tumid. lytra not more than twice as long as wide, in the middle nearly one-half wider than the prothorax, slightly dehiscent near the apex and obtusely subtruncate; sides parallel and broadly arcuate ; disk with indistinct traces of the usual two fine ridges. Legs mode- rate in length. Length 14.0 mm.; width 4.5 mm. Michigan (Marquette). Mr. Schwarz. This species somewhat resembles velutinum, but differs in its shorter and more robust form, more broadly rounded sides of the prothorax and coarser, sparser pronotal punctuation. It is widely different from cinnamopterum in all these characters, as well as in its broader and more parabolic terminal dorsal segment, and much longer antenne. The description is drawn from the female, and all comparisons are made in the same sex. T. parvulum 0. sp.—Parallel, depressed above, black, the antenna, legs and elytra more or less pale; pronotum highly polished; elytra dull; pubescence short, dense on the elytra. Head finely, sparsely punctate, strongly tumid between the antenne and longitudinally, deeply sulcate ; antenne two-thirds as long as the body, stout, gradually, finely attenuate, the basal joint one-third longer than wide, second but very slightly shorter than the third, obconical. Prothorax slightly wider than long, the apex broadly sinuate in the middle, nearly one-half wider than the base, the latter truncate; sides subangulate just before the middle; disk broadly impressed along the middle, constricted just. before the base, smooth, highly polished, finely, extremely sparsely punctate, the punctures larger and moderately dense only on the flanks. Scutellum narrow, polished, with a few minute widely distant punctures. L£lytra parallel, two and one-half times as long as wide, broadly rounded at apex near which they are dehiscent, each elytron rounded; sides straight; disk not wider than that of the prothorax, with vague traces of the usual fine ridges. Legs short, the hind femora robust. Length 8.0 mm.; width 2.2 mm. Coleopterological Notices, ILI. 25 Indiana. The description is taken from the male. The species resembles cinnamopterum, but differs in many characters, chiefly mentioned in the table, but also in its shorter and more robust legs. The punctuation at the sides of the prothorax is coarser and sparser, and the terminal joint of the antenne is quite different, being shorter and without a well-marked cylindrical process at apex; the basal joint, also, is much shorter, although this latter character is less important. HYLOTRUPES Serv. The following species has been well known in our cabinets for many years, and has given rise to much discussion as to its proper value. It is generally conceded to be a well-marked variety of ligneus, but certain characters not heretofore dwelt upon lead me to believe that it is specifically distinct. Hi. litigiosus n. sp.—Black, shining, the pubescence rather long, sparse ;. elytra with two transverse fascie, one before basal third, the other just behind the middle, both broadly interrupted at the suture and not attaining the lateral! margins. Head as in ligneus. Prothvrax nearly as in ligneus, but slightly larger. lytra parallel in the female, distinctly attenuate from base to apex in the male, subdepressed. Length 9.0-12.0 mm.; width 3.0-4.3 mm. California. The principal distinctive features of this species, apart from color, are the following :— 1—The prothorax is relatively larger and the elytra distinctly narrowed from the humeri to the apex in the male, the latter being shorter and nearly parallel in the corresponding sex of ligneus. 2—The elytral pubescence is longer and rather finer, and the punctures do not become so decidedly finer and closer toward apex, this character applying more especially to the male. 3—The intermediate tarsi of the male of ligneus are robust or subdilated, with the second joint about as wide as long, while in the same sex of litigivsus they are slender, with the second joint fully one-half longer than wide; corresponding differences are observable also in the anterior tarsi of this sex, the second joint being strongly transverse in ligneus, and scarcely wider than long in litigzosus. It is difficult to believe that these differences merely indicate varietal modification, especially as they are confirmed by ample Annas N. Y. Acap. Scr., VI, Nov. 1891.—3 Lo lor) Coleopterological Notices, ITI. series in my cabinet. Zigneus is found throughout the United States, and is equally abundant in California, while liéigiosus is confined as far as known to the latter locality. PHYMATODES Muls. This genus is not separable from Callidium by any decided modi- fication of the legs, sterna or trophi, and depends for its validity almost entirely upon habitus; the latter may however often become more important, as a generic character, than the modification of any special organ, as is apparently evidenced in the present case. In Phymatodes the eyes are singularly inconsistent in degree of emargination, the two lobes being generally connected by a rather wide faceted band, but in some species, as varius, this band or isthmus becomes very narrow, bearing a single line only of some- what coarser facets, and in amenus almost entirely disappear, the eyes being as completely divided as in Tetropium. Thus a charac- ter, apparently important in the Asemini, becomes here quite value- less. P. obliquus n. sp.—Oblong, subparallel, rather depressed, black throughout, the coxe alone pale testaceous, moderately shining, each elytrou with two narrow fascie, oblique toward the suture, the anterior at basal third feebly and posteriorly so, the posterior at apical fourth anteriorly and strongly. Head somewhat finely, contusedly punctate; antenne in the male slightly longer than the body, slender, but slightly stouter toward base, the second joint less than one-half as long as the third, the latter slightly longer than the fourth and a little shorter than the fifth, in the female more than three- fourths as long as the body. Prothorar very slightly wider than long; apex and base truncate, the former slightly the wider; sides arcuate; disk widest at about the middle, finely punctate, the punctures dense and scabrous later- ally, very sparse toward the middle. lytra feebly narrowed from base to apex, and, at base, but little wider than the prothorax in the male, parallel and much wider than the latter in the female, finely, very densely punctate, much more sparsely so in basal third. Legs long, with the femora strongly pedunculate and clavate in the male, shorter and a little more slender in une female. Length 7.2-7.6 mm.; width 2.3-2.5 mm. California (Santa Clara Co.). Mr. Harford. The three specimens represent a species allied to varius, but differing in the much finer, sparser punctuation of the pronotum, denser punctures of the elytra, with shorter finer pubescence, longer antenne and much more oblique posterior fasciee. This species bears no resemblance to decussatus of which I have Coleopterological Notices, ITT. 27 a large series; the body is more robust, the femora more clavate, and the antennal joints much more elongate. CHROTOMA 1. gen. Body elongate, densely pubescent, the elytra with small denuded spots. Head not quite vertical, the front feebly concave between the antenne, longi- tudinally and finely sulcate, divided from the epistoma by a rather fine but distinct sulcus; eyes deeply emarginate, large, coarsely faceted; palpi slightly unequal, elongate, slender, the last joint elongate, nearly parallel, the apex minutely, transversely truncate; antennal tubercles slightly and obtusely prominent; antenne (female) two-thirds as long as the body, the third joint very long, slender, slightly enlarged near the apex, three-fourths longer than the fourth, the latter slightly shorter than the fifth, joints five to eleven sub- equal in length, compressed, the edges very acute, the flat sides feebly swollen along the middle, the apex acutely angulate and very prominent but not spinose internally, tenth joint slightly shorter than the ninth or eleventh, the latter with a small conical apical process. Prothorax without lateral spine and with five dorsal callosities. Scutellum acutely triangular. Elytra with a stout acute sutural spine. Front coxal cavities angulate externally, sepa- rated by a narrow but distinct prosternal lamina. Middle coxe distinctly separated, the cavities open externally. Metathoracic episterna moderate in width, scarcely visibly narrowed from base to apex. Legs short, slender, the basal joint of the hind tarsi rather longer than the two following combined. This genus, together with Brothylus and Osmidus of LeConte and Perilasius Bates, constitutes a group of species which is very difficult to treat; they are all allied to the European Hesperophanes. Chrotoma differs from Brothylus‘and Osmidus in the peculiar elon- gate subparallel form of the last joint of both palpi, and from Peri- lasius, to which it is probably more closely allied, in the slender, almost parallel femora, absence of lateral thoracic spine in the female, and very different disposition of the dorsal callosities, appa- rently also in the form of the terminal palpal joints. C. dunniana 0». sp.—Parallel, moderately, evenly and cylindrically convex, piceous-black throughout, the antenne and legs concolorous, the elytra with a marginal and discal vitta of pale rufo-testaceous, feebly evident through the dense vestiture and which become more distinct toward base ; pubescence moderate in length, coarse, recumbent, very dense throughout the body and legs, pale grayish-white, the small elytral denudations bearing long erect flying hairs, the latter also present rather densely on the prothorax and sparsely on the legs and toward the base of the antenne. Head three-fourths as wide as the prothorax, the antenne clothed with fine recumbent ashy pubescence toward base, which becomes slightly darker and excessively minute 28 Coleopterological Notices, IIT. — and dense toward apex. Prothorax very slightly wider than long, the base and apex equal, truncate, the sides evenly and rather strongly arcuate; disk with four small denuded callous spots, which are granulato-rugose but not elevated and arranged in a transverse arc at about the middle of the length, the fifth slightly more elongate-oval on the median line at basal third; on each side of the latter there is also visible a minute callus, which is probably not constant, the median callus slightly impressed and polished. Llytra about one-fifth wider than the prothorax, parallel, the sides straight, the apex abruptly, broadly rounded, subtruncate in the middle; disk with fine, rather dense punctures, almost completely concealed by the vestiture, the denuded spots small, numerous, arranged without order, smooth, polished and flat. Length 16.5 mm.; width 4.3 mm. Texas (El Paso). Mr. G. W. Dunn. The vestiture is longer, coarser and denser than in Brothylus, and almost completely conceals the sculpture. The species is repre- sented by a single female. ELAPHIDION Serv. Hypermallus Lac.; Aneflus Lee. The following species belongs near irroratum and mucronatum, but has the outer joints of the antenne strongly and finely carinate along the middle of the flat sides, being thus a highly typical mem- ber of the group of species generically separated by Dr. LeConte under the name Aneflus; it will be noticed that the outer joints of irroratum are also strongly carinate. In fact Aneflus not only cannot be regarded as a genus, but apparently does not form even a distinctly marked group, the tendency to carination being apparent in the majority of species and to a very variable degree, so that it is impossible to assign any limits to the group. E. arizonense n. sp.—Form as in irroratum, castaneous throughout, scarcely more shining than mucronatum; pubescence very short and sparse, finely and rather sparsely marmorate on the pronotum and elytra with small irregular patches of denser pale yellowish pubescence, four of the spots of the pronotum forming a transverse row just before the middle. Head coarsely, densely punctate; antenne (male) about two-fifths longer than the body, stout, third and fifth joints equal in length, the fourth distinctly shorter, three to five strongly spinose internally, the remainder with a small inner and outer spine at apex, joints eight to eleven with a fine strong median carina along their compressed sides. Prothorax very nearly as long as wide; apex and base subequal, truncate; sides broadly, very obtusely subangulate at or just behind the middle; disk with a small, elongate, almost impunctate median callus just behind the middle, and a subcallous line at lateral fourth Coleopterological Notices, III. 29 extending from apical two-fifths to the base, which is more coarsely punctate and more pubescent; other regions dull, coarsely punctate, the punctures densely crowded and themselves finely densely punctate, forming an intricate but coarse sculpture. Scutellum densely pubescent. lytra a little less than three times as long as wide, at base distinctly wider than the prothorax ; sides feebly convergent from base to apex, the latter truncate, the outer spine very short and broadly obtuse, the sutural short, narrower and more acute ; disk sparsely punctate, the punctures very coarse toward base but fine in apical half. Under surface nearly as in mucronatum, the legs longer and the femora much stouter in the male, not spinose ; posterior tibiz carinate as in irroratum. Length 21.0-23.0 mm.; width 5.6-5.8 mm. Arizona. The two specimens, which are from the Levette cabinet, are both males. Although by the characters given for Aneflus, this species should be placed near protensum, I cannot recommend that it be withdrawn from the neighborhood of ¢rroratum, and if it is trans- ferred to Aneflus, ¢rroratum must go also; but in truth there is no such group in nature as Aneflus, and it should therefore be suppressed and the species returned to Elaphidion. E. levettei n. sp.—Elongate, very slender, parallel, dark rufo-castane- ous, shining, the pubescence silvery-white, not at all maculate on the protho- rax, arranged in four even parallel vitte on each elytron, which do not quite attain the apex, and which are separated by narrower, very sparsely pubescent lines, also with a series of small widely separated denuded spots on each side _ of the suture. Head rather coarsely, densely punctate; antenne wanting in the type. Prothorax much longer than wide, the apex subtruncate, distinctly narrower than the base; sides feebly swollen just behind the middle, thence feebly convergent and nearly straight to the apex, and parallel and feebly, broadly sinuate to the base; disk very coarsely, deeply, densely punctate, the punctures tending to coalesce transversely at the sides, with a small elongate very uneven impunctate area at the middle. Scutellum densely white, small, the pubescence not at all parted along the middle. lytra fully three times as long as the head and prothorax together, at base two-fifths wider than the latter, each elytron very narrowly truncate at apex, and with two subequal slender and well-developed spines; sides nearly straight, very feebly conver- gent from base to apex; disk sparsely punctate, the punctures very coarse toward base, gradually rather fine toward apex, the dense pubescence of the vittz not borne from the punctures, but from almost invisible punctuation of the flat interspaces, each of the sparsely pubescent lines having an extremely ° widely spaced row of coarser punctures, each bearing a long flying hair, one of the latter borne also from each of the small sutural denuded spots. Legs rather long, the femora very slender, not spinose at apex; tibie and tarsi wanting in the type. Length 18.0 mm.; width 3.5 mm. 30 Coleopterological Notices, ILI. Arizona. A single mutilated male from the Levette cabinet. This species would almost seem to be generically distinct from Elaphidion, but there are no characters relating to the under surface by which it can be separated. The form of the body and size are almost exactly as in swbpubescens, near which it may be placed for the present. RHOPALOPHORA Cerv. The following species is allied to longipes but differs in its broader form :— R. meeskei nun. sp.—Elongate, subparallel, deplanate above, black throughout, the prothorax above and beneath rufo-ferruginous ; integuments dull and strongly alutaceous. Head somewhat coarsely, deeply punctate: antenne one-half longer than the body in the male, scarcely longer than the latter in the female, very slender, filiform, the basal joint much thicker. Pro- thorax but very slightly longer than wide; base broadly emarginate, scarcely one-half wider than the apex; sides strongly arcuate at basal third, thence convergent anteriorly ; disk moderately constricted laterally at the apex and just before the base, broadly, feebly biimpressed, the impressions joined by a short transverse impression, the pubescence yellow, forming two broad longitu- dinal lines. lytra nearly as in longipes, but more finely and densely cribrate. Legs as in longipes. Length 7.5-8.4 mm.; width 1.7-1.9 mm. New Mexico (Las Vegas). Mr. H. Meeske. In longipes the form is very slender, the prothorax much longer than wide, truncate at base, with the punctures extremely fine and sparse, while in the present form the punctures are quite coarse and distinct. In longipes the pronotum is not at all impressed, and the lines of extremely short fine pubescence are very narrow. The species of Rhopalophora within our limits may be recognized as follows :— Pronotum impunctate ; large species, 12 mm. in length........... laWicollis Pronotum punctate ; smaller species, not exceeding 9.5 mm. in length. Pronotum not rugulose. Prothorax narrow, truncate at base, not impressed dorsally...lomgipes Prothorax broader, feebly biimpressed dorsally, broadly, strongly emar- ginate at base ; form more robust ........sceeccese ces conse sce ese oes MMCCSKECT Pronotum transversely plicate and rugulose ........0cceeeeeeeeee ee PULSTCOMLES The true longipes is represented before me by a good series from Indiana. Coleopterological Notices, ILI. 31 CROSSIDIUS Lec. The species of this genus with tuberculate sides of the prothorax may be easily distinguished as follows :— Prothorax more or less strongly transverse, very densely, confluently punc- tured and densely pilose. Antenne of the male rather short, never much longer than the body, those of the female very short and stout, with the joints scarcely more than twice as long as wide. Elytral punctuation very coarse, becoming slightly finer toward apex, the punctures always distinctly separated..............000- PuUNCctatus Elytral punctuation finer, becoming extremely dense toward apex. testaceus Antenne of the male very long and slender, much longer than the body, those of the female moderate in length, slender, with the joints three or four times as long as wide. Antenne and legs pale; posterior tarsi short and slender; elytral punc- tures coarse, always distinctly separated..................smtermedius Antenne and legs black or piceous-black; posterior tarsi longer and much stouter. Elytral punctures fine and very dense, coarser toward base. longipennis Elytral punctures very coarse, nearly as in punctatus, but much denser. crassipes Prothorax much less transverse, coarsely, deeply punctate and shining, the punctures all distinctly separated. Antenne of the male much longer than the body. Elytra rather finely and very densely punctate, the ae base and SREP MEOMO IO ty DVACK...c-scesivesicne saciaeaiden stecassce'ser ae . hirtipes Elytra very coarsely, ee onaeate at a narrow rene black area at the suture, scarcely ever extending as far as basal fourth. nitidicollis Antenne of the male much shorter, never notably longer than the body; elytral punctures very coarse toward base, the disk with a broad black sutural area, which is usually angulate anteriorly, sometimes attaining MUMBA Se Rata dettee/on scisircislanejloe nceroasiaeelsss\seieds ceecsaisseissecseicse SON . ~ ‘ x . F : + * . = n x See < ’ o - = bs « ¥ a ~ arog é - amis = . a : a | ea bt . “ ag = Bid ote * 2 W r = Z a 5 . 4 a oe oa e. 7 —e ; : es ale a F i a ? a ly ( < s bor S = : ~ = 4 ahs 7 59 ee A> SA a, " a, wee - 5 a a b J : Ps a Py T¢ ote ea Nagy 36 ie aes g 4 L 5 5 “3 :: - es 4 a 7 4 ‘y ? + =. 4 ~ a > a -e ; F Lg , . < ro _ 4 fea ? a4 } ah . . . ar ; Varn it a 4 ¥ AS i % Ae se ¢ _ - f 8 ¢ . ~ : : io a 2 = is ry ts rt : a = ee ifn Ue ain toner re, ‘ Sate teed “af z ; | & = i . } a § : E é | SSS SS —— se Ses Ee: == = = : SSS SS SS : oT? es r= 7 - . > =e < 5 - ‘ ; Pd < * z =. - , Committee of Wublication, — DANIEL §. MARTIN, iy a =a H. C. BOLTON, | THOS. L. CASEY (Enrror), s 4 | é Coleopterological Notices, IIT. 57 Colorado. The under surface is clothed very sparsely with short yellowish hairs. One specimen. I take pleasure in dedicating this species, perhaps the most inter- esting of the novelties contained in the Levette cabinet, to Mr. F. M. Webster, in partial recognition of many favors rendered by him in connection with the transfer of the cabinet mentioned. ELEODES Esch. _ The following species, represented by a series of eleven specimens from the Levette cabinet, is not closely allied to any other, but may be placed for the present near humeralts :-— E. rileyi n. sp.—Rather robust and convex, somewhat strongly shining, intense black throughout. Head coarsely, rather closely punctate; antenneze subequal in length to the head and prothorax, the third joint three times as long as wide and rather longer than the next two combined, the outer joints but moderately robust. Prothorar from one-fourth to three-fifths wider than long, the apex broadly, feebly emarginate, distinctly narrower than the base, the latter transverse, generally very broadly, feebly sinuate toward the middle ; apical angles obtuse but not at all rounded, basal slightly obtuse, not much rounded and rather prominent ; sides strongly arcuate at apical third, thence strongly convergent and nearly straight to the apex, distinctly sinuate before the base; disk rather coarsely, deeply punctate, densely so toward the sides, sparsely and unevenly, with large impunctate patches toward the middle. Elytra two and one-half times longer than the prothorax, and, in the middle, from one-fifth to nearly one-half wider than the latter ; sides evenly arcuate ; humeri narrowly rounded, slightly prominent and usually distinctly exposed ; apex narrowly rounded; disk almost vertical behind, rather coarsely, feebly and subasperately punctate, sometimes with very feebly impressed distant lines, the punctures rather sparse, not much denser laterally, confusedly disposed but often having a feeble lineal arrangement. Prosternum not at all produced. Anterior tibial spurs extremely unequal, the anterior robust, long, subparallel and truncate at apex, the posterior very small, acute, the larger spur still more pronounced, broader and more truncate in the female. Length 12.0-15.0 mm.; width 5.2-7.2 mm. Arizona. The anterior femora are completely unarmed in both sexes, and the relative proportion in the length of the anterior tibial spurs is nearly independent of sex, but both spurs are longer, and the ante- rior much wider, more broadly truncate and more parallel in the female than in the male. From humeralis the present species differs in its smaller size, Annas N. Y. Acap. Scr., VI, Nov. 1891.—5 x 58 Coleopterological Notices, ITT. much sparser punctuation, narrower, more convex form and much shorter third antennal joint. I have dedicated it to Prof. C. V. Riley of Washington, as a slight token of my appreciation of his many acts of kindness and liberality. E. nitidus n. sp.—Rather slender, convex and subcylindrical, black throughout and strongly shining, glabrous. Head rather sparsely punctate, moderately coarsely so toward apex; antenne robust, nearly as long as the head and prothorax, the third joint four times as long as wide and fully as long as the next two together, last three joints distinctly dilated forming a club, the ninth and tenth strongly transverse. Prothorax quadrate, very nearly as long as wide, the apex transverse, broadly and feebly bisinuate, equal in width to the base, which is broadly, rather strongly arcuate; apical angles right, narrowly rounded, basal broadly obtuse and not prominent but not at all rounded; sides parallel, very feebly arcuate; disk just visibly wider at apical third than at base, evenly convex, extremely minutely and sparsely punctate. S/ytra two and three-fourths times as long as the prothorax, and, in the middle, nearly one-half wider, about twice as long as wide; sides broadly arcuate ; base broadly emarginate ; humeri right, not noticeably ex- posed ; apex acutely rounded ; disk obliquely declivous behind, having feebly marked, distant, completely unimpressed series of extremely minute punc- tures ; intervals minutely, sparsely and more or less confusedly punctate, the punctures not distinctly larger or denser laterally. Femora all slender and completely unarmed; spurs of the anterior tibize very unequal, the anterior slender, acutely pointed and moderate in size; posterior tarsi slightly com- pressed, nearly three-fourths as long as the tibie. Prosternum slightly pro- longed but not at all reflexed, the apex vertical. Length 18.0 mm.; width 6.7 mm. Arizona. This species, which is represented before me by a single speci- men, apparently a male, belongs near longicollis, but differs in its flatter, rather shorter prothorax, less rounded on the sides, in its shorter, broader elytra, broadly and rather strongly emarginate at base and having widely distant rows of punctures, and in its shorter, stouter and much more clavate antenne. E. Compositus n. sp.—Moderately robust, convex, intense black throughout, the pronotum dull and strongly alutaceous; elytra shining, very feebly alutaceous, glabrous. Head densely dull, finely, rather sparsely punc- tate; antenne rather long and stout, fully as long as the head and prothorax, third joint between three and four times as long as wide, outer joints slightly broader, the ninth and tenth somewhat transversely oval. Prothorar about as long as wide, the apex and base equal in width, the former broadly, very feebly emarginate, the latter correspondingly arcuate; apical angles right, Coleopterological Notices, ITT. 59 slightly blunt, not prominent, the basal broadly obtuse; sides parallel, broadly arcuate or subangulate just before the middle, very feebly sinuate just behind the apical angles, feebly convergent and nearly straight to the base; disk evenly convex, very minutely, sparsely punctate. lytra about two and two- thirds times as long as the prothorax, and, in the middle, one-half wider than the latter, about twice as long as wide; sides broadly arcuate; humeri not at all exposed ; apex acutely angulate; disk strongly declivous behind, deeply sulcate, the ridges strongly convex and shining, each with a single rather uneven Series of small, moderately distant punctures, the intervals as wide as the ridges, deep, opaque, each with a single series of rather small, close-set, asperate punctures. Legs slender, the femora shining, rather finely but strongly punctate, the anterior alone with a strong acute tooth near the apex; tibize strongly rugose except toward base, the spurs of the anterior small, acute and nearly equal. Prosternum with the apex slightly reflexed, acute and tuberculiform. Length 16.0 mm.; width 6.6 mm. Texas. A single specimen from the Levette cabinet. This species has but little affinity with any other thus far described, the prothorax being nearly similar to that of genizlzs and the elytra deeply sulcate, as in the typical hispilabris; for the present it may be placed just after the latter in our lists. EULABIS Esch. The species of this genus may be distinguished as follows :— Pronotum bicarinate; body glabrous ..........scsseccsceesesseeeeeees DECAPINAtTA Pronotum not at all carinate. Elytra finely but strongly costate; eyes very short and transverse, occa- sionally almost divided. Body sparsely pubescent ...........00 cee cee cceccescececeer ces ces soe see PUULDESCEMS Body glabrous. Prothorax much narrower than the elytra, coarsely, deeply punctate, the punctures not at all longitudinally confluent................3rOSSa& Prothorax subequal in width to the elytra, generally more finely punc- tate and longitudinally rugulose. Antennz with the second joint much smaller than any other. Antenne long and extremely robust, the tenth joint twice as wide as long; punctures of the elytral series very coarse. laticornis Antenne shorter, moderately stout, the tenth joint less than twice as wide as long; elytral punctures fine............CrFAaSSICOrnis Antenne with the second joint subequal to the fifth ; smaller species. rufipes Elytra not distinctly costate, having series of lineate punctures; eyes much longer and less deeply emarginate..........sssccssceesceces cos seeces os OUSCULLA 60 Coleopterological Notices, ITI. The last of these was placed in a separate genus by LeConte, and possibly Epantius should be regarded as valid, or at least a good subgenus. E. laticornis n. sp.—Moderately robust, subparallel, somewhat de- pressed, glabrous, black to piceous-black ; legs paler, rufo-piceous ; antenne black ; integuments dull. Head coarsely, densely punctate, the punctures finer, less crowded and more asperate anteriorly ; epistoma transversely trun- cate ; eyes short and transverse but only one-half divided ; antenne unusually long, almost attaining the base of the prothorax, extremely stout, the outer joints strongly transverse and compressed. /Prothorax one-fifth to one-fourth wider than long, the apex transversely truncate, rather distinctly wider than the base, the latter extremely feebly arcuate ; apical angles very obtuse, dis- tinctly rounded, basal widely obtuse but not rounded and generally minutely prominent; sides broadly, evenly arcuate, more convergent and straighter toward base; disk widest before the middle, evenly, very feebly convex, coarsely, deeply, extremely densely punctate, the punctures having much less tendency to longitudinal coalescence than in crassicornis. lytra one-half longer than wide, oblong-oval, about twice as long as the prothorax, and, in the middle, about one-fourth wider than the latter, abruptly, obtusely rounded at apex; sides broadly arcuate; humeri narrowly rounded, somewhat tuber- culiform and prominent and distinctly exposed ; base broadly, feebly emargi- — nate, the basal margin unevenly tumid; disk broadly flat above, the cost strongly marked; intervals each with a single row of coarse deep circular punctures. Abdomen densely, coarsely and deeply punctate, each puncture bearing a distinct recumbent hair; median portions broadly impressed or flattened. Legs very stout and moderately long, the hind femora much longer than the intermediate ; anterior tibie slightly arcuate, stout. Length 9.2-10.0 mm.; width 3.8—4.2 mm. California (San Diego). One of the two specimens before me formed part of the Levette cabinet, the other was kindly communicated by my friend Dr. F. K. Blaisdell, and was collected at Poway. This species is quite distinct from any other thus far known; it is nearly as large as grossa, but has less inflated elvtra. It may be readily distinguished from crassicornis by its more robust and especially much longer antenne, much larger size, more depressed form, coarser punctuation and scarcely at all longitudinally rugulose sculpture of the pronotum. CIBDELIS Mann. C. levigata n. sp.—Moderately robust and convex, intense black throughout, glabrous. Head rather coarsely, densely punctate behind, much Coleopterologicat Notices, ILI. 61 more finely so on the epistoma; sides broadly reflexed before the eyes; antenne rather short and slender, about as long as the prothorax, rufescent at base, the third joint distinctly shorter than the next two together. Pro- thorax nearly twice as wide as the head, two-fifths wider than long, the apex and base subequal, the former truncate, feebly sinuate laterally, the latter broadly, feebly arcuate ; sides broadly, evenly arcuate, becoming oblique and straight near the basal angles, which are very obtuse but not rounded ; apical angles slightly obtuse and narrowly rounded; disk feebly alutaceous in lustre, evenly convex, rather finely, sparsely punctate throughout, the punctures becoming almost obliterated near the thick marginal bead. Scutellum broad, triangular. lytra two-thirds longer than wide, two and one-half times as long as the prothorax, and in the middle, one-fourth wider than the latter ; sides nearly straight and parallel from the strongly oblique and broadly arcuate humeri to posterior third, the apex rather acutely triangular; disk rather strongly, gradually declivous behind, with scarcely at all impressed, distant strie of small, unevenly spaced and feeble punctures, the intervals shining, coarsely wrinkled, extremely minutely and sparsely punctate, without small tubercles except near the sides toward apex. Jegs short and slender. Length 13.0 mm. ; width 5.6 mm. California (Sta. Barbara). Mr. G. W. Dunn. This species differs from blaschkei in its shorter, broader form, smooth surface, finely, rather sparsely punctate prothorax with the sides behind oblique and straight and not at all sinuate before the broadly obtuse basal angles, and in the much smoother and less tuberculate elytra. In general appearance it is altogether distinct from either blaschkei or bachet. A single specimen. ALAEPHUS Horn. A. macilentus »n. sp.—Elongate-oval, moderately convex, pale luteo- flavate throughout, strongly shining, the head and pronotum very slightly alutaceous ; body nearly glabrous, each puncture of the elytra bearing a short pale recumbent seta. Head rather coarsely punctate, the punctures shallow, strongly and polygonally crowded forming a reticulation of raised lines ; eyes large, angulate antero-internally ; front deeply impressed at each side in front of the eyes; antenne slender, cylindrical, filiform, a little longer than the head and prothorax, the outer joints not thicker but gradually much shorter, third very long and slender, though scarcely as long as the next two together. Prothorax but very slightly wider than long, the apex transversely truncate, nearly three-fourths as wide as the base, the latter transverse, very broadly, feebly bisinuate; basal angles right, not rounded, the apical very obtuse and rather blunt; sides broadly, feebly, almost evenly arcuate; disk scarcely as wide at base as just behind the middle, feebly convex, broadly, feebly impressed along the middle, feebly, rather widely reflexo-explanate laterally, especially toward base, very feebly, subcoalescently punctate and 62 Coleopterological Notices, ITT. minutely subrugulose. Scutellum distinct, broadly rounded or subangulate behind and constricted at the sides near the base. lytra about three times as long as the prothorax, and, in the middle, about one-third wider than the latter, a little more than twice as long as wide; sides broadly arcuate; apex gradually, acutely ogival; humeri broadly rounded, a little broader than the base of the prothorax; disk evenly convex, finely but rather strongly, evenly but irregularly, moderately densely punctate. Abdomen finely, sparsely punctate. Legs moderate in length, slender. Length 5.0-6.4 mm.; width 1.7-2.2 mm. Arizona; New Mexico. Distinguishable from pallidus by its much smaller size and more slender form, more quadrate prothorax, still paler coloration and more shining surface lustre. Apparently not rare. IDIOBATES 2. gen. This name is proposed for Tenebrio castaneus Knoch, an anoma- lous form hitherto associated with the normal members of Tenebrio, but manifestly distinct by reason of its completely divided eyes and abdominal structure, only the penultimate segment of the latter being provided with a visible coriaceous hind margin. I would suggest that it be placed in the Blapstini near Mecysmus. The generic value of castaneus was long ago recognized by Bates, and later by LeConte, but I am not aware that it has ever been given a distinctive name. It certainly constitutes as good a connective bond, between the Blapstini by way of Mecysmus and the other Tenebrionini through ‘Tenebrio, as could well be found, the undilated anterior tarsi being a matter of no material import- ance in this connection. In the table of the tribe Tenebrionini given on page 393, Vol. V of these Annals, the genus Calcar, together with one or two other exotic genera, must constitute a group distinct from the Tenebriones by reason of the very exceptional abdominal structure, the coria- ceous hind margins of both the third and fourth segments being completely invisible. This well-known fact was inadvertently over- looked in compiling the table alluded to. BLAPSTINUWS Latr. I have recently, by way of experiment, dissected a series of eight specimens of a form very near rufipes, probably a variety or race of that species, and have found a singular and altogether unexpected Coleopterological Notices, IIT. 63 constancy in the form and size of the rudimentary hind wing, the extreme variation not amounting to more than one-fifth of the average length, the latter being a little more than one-half the total length of the elytra. This is not put forward as proof of any general rule, but simply as an isolated fact in a field very little explored and still less understood. It seems extremely difficult to account for this constancy by the theory of natural selection, and, as it is impossible to doubt the ever-acting reality of the principle in question, we can only infer that rudimentary organs are not necessarily inordinately variable, and, when comparatively constant, that the standard is maintained by the action of other laws less easily appreciated. Darwin, in his ‘‘ Natural Selection,” dwells but briefly upon this question, but gives as one instance of variability in rudimentary organs, the wings of a certain beetle which may be either fully developed or more or less rudimentary. Other authors have also cited examples of a corresponding nature. I think, however, that there is more or less doubt to be attached to this entire category of observations, due to a lack of knowledge of the physical conditions under which the various specimens may have existed. It would for example be manifestly repugnant to the fundamental idea of natural selection to imagine individuals of the same species, with fully developed and rudimentary wings living together on the same bush—except in cases of sexual dimorphism, which constitute a wholly different branch of the subject,—for this very principle would tend to eliminate those individuals which were least able to maintain themselves, and we cannot assume that perfectly and partially developed wings constitute conditions equally fitting the Species to maintain itself against a great variety of external influ- ences. | | The only conceivable circumstances under which individuals of a wingless species may, under the same conditions, also be found with more or less developed wings, are due to occasional reversion to the conditions characterizing the primitive stock from which the species may have been derived. If the species has been differentiated for a comparatively great length of time, which may perhaps be judged of approximately by its degree of departure from related winged species, this reversion will surely be quite exceptional. Wingless species occurring on oceanic islands are frequently said to be identical with continental fully winged forms, but it seems as 64 Coleopterological Notices, IT. though the mere fact that one form is winged and the other wing- less ought to be sufficient ground for specific isolation, especially as it is highly probable that the more or less extended time necessary to bring the winged continental form to the wingless insular condi- tion, will generally be sufficient to develop other specific differences At all events the wingless island form must always be considered an incipient species or variety, for this kind of isolation has been one of the most potent factors in the differentiation of species as we now understand them. CONIBIOSOMA Cas. The following species bears but little external resemblance to elongata, but as the prothorax is strongly fimbriate, the body appa- rently apterous, and the anterior tibiz slender, it must either be placed here or in a new genus :— C. laciniata n. sp.—Moderately slender, oblong-suboval, densely punc- tate anteriorly but rather shining; body black throughout, the legs rufous, the antenne dark piceo-rufous; pubescence rather dense, moderately long, nearly as in Blapstinus, very coarse, rigid, semi-erect and black, not very conspicuous. Head short and broad, broadly, feebly sinuate at apex, rather coarsely, very densely and deeply punctate ; eyes moderately large, the upper lobe elliptical ; antennz long, about as long as the head and prothorax, stout, clothed throughout with long stiff black sete, the outer joints gradually, feebly incrassate and distinctly transverse, the eleventh narrower than the tenth, the third long, equalling the next two combined. Prothorax about one-third wider than long, the apex as wide as the base, transversely truncate, the base broadly arcuate, not appreciably sinuate toward the basal angles which are obtuse but not rounded; apical slightly obtuse, not rounded ; sides broadly, almost evenly arcuate; disk widest near the middle, evenly convex, rather coarsely, very deeply and extremely densely punctate throughout, the side margins with a dense fringe of long erect stiff sete. Scutellum triangular, entering the disk of the elytra, densely punctate. lytra about two and one- half times as long as the prothorax, and, in the middle, nearly one-fourth wider than the latter, fully three-fourths longer than wide, obtusely para- bolic at apex ; sides parallel, very feebly arcuate ; humeri slightly exposed at base; disk with rather coarse, feebly impressed series of somewhat coarse, deep, moderately close-set punctures, the intervals feebly convex, shining, extremely minutely, rather sparsely and confusedly punctate. Abdomen rather finely, but deeply and densely punctate, broadly, deeply impressed in the middle in the male. Legs rather slender, the hind tarsi with the basal joint subequal to the next two and very much shorter than the last. Length 4.6-5.0 mm.; width 1.8—2.1 mm. Coleopterological Notices, ILI. 65 Arizona (Tucson). Mr. H. F. Wickham. This exceedingly interesting and aberrant species is easily recog- nizable by its rather long antennz, conspicuous pronotal fringe and coarse black vestiture ; it will probably have to be ultimately sepa- rated from elongata as a distinct genus. PALEMBUS 1. gen. I have applied this name to a small species, having very nearly the antennal structure of Oplocephala Lap. (= Hvoplus Lec.), and apparently allied to that genus, but differing in its narrower, more depressed form, non-tuberculate head, large coarsely faceted eyes, longer hind tarsi and entire epipleure ; its general characters are as follows :— Body parallel, rather strongly convex. Head rather short and broad, the eyes large, more prominent than the sides before them; antenne short, the last seven joints short and transverse, forming a long loose parallel club; maxillary palpi rather slender, the last joint elongate-oval, about as long as the preceding two together, the apex obliquely and narrowly truncate; mentum obtrapezoidal; ligula large, corneous, the connate paraglosse large, broadly rounded. Prothorax transverse, the prosternum moderately wide between the coxe. Elytra striate; epipleure narrow, entire, flat. Legs rather slender, the anterior tibie not dilated; posterior tarsi long, but slightly shorter than the tibie, the basal joint equal to the last and as long as the second and third together, the third one-half longer than wide. In the type specimen the structure of the middle coxal cavities cannot be clearly discerned. P. ocularis n. sp.—Oblong-elongate, convex, pale rufo-testaceous throughout, shining, glabrous. Head evenly, feebly convex, finely, moder- ately densely punctate behind, the epistoma rather large, abruptly deplanate, feebly convex and very minutely punctate, the sides strongly convergent, the apex broadly truncate, the surface feebly impressed just before each eye; eyes large, separated above by scarcely their own width; antennz one-third longer than the head, stout, compressed, the third joint a little longer than the fourth and one-half longer than the second. /Prothorax four-fifths wider than long, the apex and base equal, the former broadly, feebly, evenly arcuate, almost truncate, the latter arcuate in the middle, oblique thence to the basal angles which are obtuse and blunt, apical rounded; sides feebly arcuate behind, nearly straight anteriorly; disk slightly widest near basal third, evenly, transversely convex, distantly and feebly biimpressed at base, very finely, not densely punctate. Scutellum slightly wider than long, ogival. Elytra between three and four times as long as the prothorax, equal in width to the latter, fully twice as long as wide, parallel, obtusely rounded behind, 66 Coleopterological Notices, ILI. finely striate, the strie feebly but distinctly impressed, finely punctate, the intervals minutely, sparsely and confusedly punctured. Abdomen finely, not very densely punctate. Length 3.8 mm.; width 1.3 mm. Florida. I owe the above-described specimen to the kindness of Mr. W. Jiilich, in whose cabinet there is a considerable series, displaying scarcely any variation. RUES n. gen. This name is proposed for a distinct genus belonging near Hege- mona Cast., and represented by the species recently described by me under the name Helops ovipennis (Ann. N. Y. Acad., V, p. 487). It resembles Hegemona in the unusually wide mesosternum, nearly flat between the coxe, and in the exceedingly short meta- sternum, but differs in the wider elytra, extremely broad epipleure and very short slender legs. HELOPS Fab. Both of the following species are related to bachez, and should immediately follow that species in our lists :— H. blaisdelli n. sp.—Oblong-oval, rather strongly convex, piceous- black, the elytra castaneous ; antennz and legs throughout rufo-testaceous ; integuments glabrous and strongly shining. Head feebly convex, rather coarsely, deeply, moderately densely punctate, the punctures longitudinally coalescent, forming long furrows and ruge; eyes prominent and convex; antenne slender, filiform, nearly one-half as long as the body, joints four to ten elongate, evenly obconical, subequal, eleventh a little longer, third much longer. Prothorax transverse, one-half wider than long and four-fifths wider than the head; base and apex subequal and both transversely truncate; sides strongly and almost evenly arcuate; apical angles broadly obtuse and nar- rowly rounded, basal very obtuse but scarcely rounded; marginal bead very fine and feebly developed throughout the length; disk very much wider at basal third than at base, evenly convex, somewhat coarsely, deeply, rather densely and unevenly punctate throughout, the punctures but slightly sparser toward the middle, toward the sides more or less longitudinally coalescent in twos or threes. Scutellum broadly ogival. lytra two and one-half times as long as the prothorax and not in the least wider than the latter in any part, four-fifths longer than wide; sides parallel and nearly straight ; apex obtusely ogival; humeri rather broadly exposed at base, slightly obtuse, narrowly rounded; disk rather finely striate, the strie entire, not impressed but abruptly grooved, the punctures elongate, moderate but uneven in size and mutual separation ; intervals flat, feebly and confusedly undulated, finely, not Coleopterological Notices, ITT. 67 very densely punctate, laterally toward the apex with small, distant, feebly elevated tubercles in single series on each. Abdomen finely, somewhat densely punctate; metasternum but slightly shorter than the first ventral segment ; mesosternum long and depressed in front, rather narrowly separating the coxe, feebly declivous and slightly impressed before the coxe, the process be- coming horizontal behind ; prosternal process not at all prominent posteriorly. Legs moderately long, the tibie rather strongly enlarged from base to apex, the anterior tarsi rather broadly dilated in the male, posterior short with the basal joint equal to the next two and much shorter than the last. Length 8.0-9.0 mm.; width 3.2-3.3 mm. California (San Diego). Dr. F. E. Blaisdell. The two specimens before me are both males, and have the intro- mittent organ rather broad throughout, abruptly and sharply acumi- nate at apex, and with the upper surface deeply and longitudinally excavated, the excavation extending almost to the apex; in bachet it is finely but less abruptly acuminate, and the upper surface is finely, longitudinally subcarinate near the apex, the excavation being very feeble and much less apical. The form of blaisdelli is considerably shorter and the prothorax is very much more trans- verse. H. discipula n. sp.—Evenly elongate-oval, strongly convex, glabrous, moderately shining, the elytra alutaceous; upper surface dark castaneous, beneath paler, rufescent; legs and antenne rufous. Head coarsely, not densely punctate, the punctures scarcely at all longitudinally confluent, slightly finer anteriorly ; eyes prominent; antenne short, but slightly longer than the head and prothorax, joints four to eight increasing in length, rather slender, obconical, nine to eleven thence gradually shorter and more dilated, the last obliquely oval and not longer than the tenth, third one-half longer than the fourth. Prothorax nearly one-half wider than long, the apex rather distinctly narrower than the base, both subtruncate or extremely feebly arcu- ate; sides strongly evenly arcuate; apical angles broadly obtuse and slightly rounded, basal extremely obtuse and widely rounded; marginal bead very fine but distinct throughout the length; disk not very coarsely, rather densely punctate, the punctures sparser in the middle, with scarcely any tendency to coalesce longitudinally toward the sides. Scutellum broadly triangular, short, coarsely, rather densely punctate. lytra oblong-oval, about three times as long as the prothorax, and, in the middle nearly one-third wider than the latter, twice as long as wide, gradually ogival behind ; sides parallel, broadly arcuate; humeri obtuse, exposed at base; disk with very fine, entire unim- pressed series of fine unevenly spaced and generally more or less linear punc- tures, the intervals flat, minutely, sparsely, confusedly punctate, each with a single widely spaced series of very small tubercles, which are rather indistinct toward the suture. Abdomen finely, sparsely punctate; sterna nearly as in blaisdelli. Legs rather long, very slender. Length 7.0 mm.; width 2.9 mm. 68 Coleopterological Notices, ILI. California (probably near San Diego). Mr. W. Jiilich. The type is apparently a female, and the anterior tarsi are not dilated. It is easily distinguishable from both bachei and blaisdelli by the short antenne and broader elytra, and from the former, in addition, by its short transverse prothorax with fine marginal bead. H. cylindriformis n. sp.—Narrow, strongly convex, subcylindrical, black throughout, shining and feebly alutaceous. Head scarcely as long as wide, broadly, evenly, feebly emarginate at apex, the surface rather finely and densely, very strongly punctate; eyes rather more prominent than the feebly reflexed sides before them; antenne slender about one-half as long as the body (male) or scarcely as long as the head and prothorax (female), third joint a little longer than the next two together, outer joints gradually and only slightly broader, the tenth about one-half longer than wide and a little shorter than the eleventh, the latter slightly longer in the male where it is twice as long as wide, obliquely acute at apex. Prothorax elongate, fully as long as wide, the apex broadly arcuate, a little narrower than the base, the latter subtruncate ; sides broadly arcuate at or just before the middle, feebly convergent and more feebly arcuate to the apex, broadly, distinctly sinuate before the basal angles which are right, not at all rounded and somewhat prominent; disk evenly convex, finely, densely punctate, the punctures strong and always distinctly separated, but slightly less dense toward the middle where there is usually a narrow uneven impunctate line. lytra twice as long as wide, not quite three times as long as the prothorax, and, in the middle, scarcely two-fifths wider than the latter; sides parallel, broadly, feebly, evenly arcuate ; apex obtusely ogival ; humeri completly obsolete, the base exactly equal to the thoracic base; disk with unimpressed series of small unevenly spaced but generally approximate and slightly elongate punctures, the intervals flat, very finely, irregularly, sparsely punctate. Abdomen very finely, rather sparsely punctate. Legs slender, the anterior tarsi very slightly dilated in the male. Length 9.0-14.0 mm.; width 3.2-5.0 mm. New Mexico (Fort Wingate). Dr. Shufeldt. . This species, which is represented by a series of eight specimens, is allied to dzffictlis, but differs in its more slender subcylindrical form, much more elongate prothorax with less blunt apical angles, narrower and more finely and sparsely punctate elytra and rather shorter antenne. HT viridimicans Horn appears to be homologous with the Cuban rufipes, and to be more appropriately assignable to Nautes than to Helops, although it must be confessed that the difference between these genera has not been very satisfactorily expressed. H. montana Lec. is quite distinct from conveaxula in its broader, more oblong form, and in its longer and much stouter antenne and notably larger size. Coleopterological Notices, ITT. 69 STRONGYLIUM Kirby. Two specimens of S. atrum Champ., from the Levette cabinet and labeled ‘‘ Arizona” are before me. This species is quite aberrant in appearance and may be known at once by its large size, smooth but dull surface, rather coarse, very dense pronotal punctuation and fine unimpressed and feebly punctate elytral striz. CISTELID. There is probably no family, even of the Heteromera, where the differentiation of genera depends so little upon definite and constant modifications of special organs, and so greatly upon general habitus, as in the Cistelidze. There are, for example, but few special char- acters relating to the palpi, tarsal lobes, eyes or antenne, which remain invariable throughout the limits of even those genera which, in the majority of species, are particularly distinguished by important developments or modifications of any one of the organs mentioned. We are therefore beset with numerous difficulties in our definition and limitation of the genera. ‘In regard to the family considered in its entirety, however, the case is quite different, since there is no group of the Heteromera which is so homogeneous within itself, or so clearly limited in extent. For, while closely related to the Tenebrionide through Strongylium and other allied genera, it is always and invariably distinguishable by the pectination of the tarsal claws; besides this there is, in the vast majority of genera, a marked and unmistakable peculiarity of facies which can seldom be mistaken. The porous system of the antenne is developed to an extent unknown in the Tenebrionide, except in certain of the strongyliide genera, the entire surface of all but three or four of the basal joints being studded with large circular sparsely placed pits, which are filled with a white sensitive material of a spongy-pubescent nature. These pores are frequently so large as to be quite conspicuous under the lowest powers of amplification. The Cistelide resemble the lower Tenebrionide in the prolonga- tion backward at the sides of the third and fourth ventral segments, which is however more marked and general than in the latter family, and also in the well-developed coriaceous posterior margin of these 70 Coleopterological Notices, ILI. segments; also in the thinner integuments of the body, with soft and easily ruptured connective tissues. Perhaps some of the char- acters which the family in general possesses in common with the . Strongyliini, indicate really a higher development than that of the Asidine and Tentyriine; the superior powers of perception indi- cated by the complex porous system of the antenne, large eyes and more developed palpi, would, at any rate, seemingly point to this conclusion. As more important distinctive characters of the family, it may be said that the antenne and tarsi are usually long and slender, the basal joint of the posterior tarsi being more or less elongate. The anterior cox are narrowly separated, the cavities always closed behind but never confluent, at least externally, although sometimes separated by a very thin lamina; beneath this lamina they may possibly sometimes be confluent, but usually appear to be separated by a more or less thickened membrane. The eyes are generally large, sometimes extremely so. The mandibles are small or moder- ate, arcuate and finely notched at apex, occasionally being nearly entire, but this character cannot be advantageously employed in classification, except in distinguishing closely allied genera. The genera with lobed tarsi appear, as a rule, to be more constant in generic as well as specific characters, than those with simple tarsi. The sexual characters of the male are generally strongly mani- fested in the eyes, antenne or genital apparatus. The intromittent organ is more or less acutely pointed at apex, the under side being channeled, except very near the apex. Lying in this groove is a curious straight spike hinged at one end to a point of attachment within the channel, which can be placed in a position perpendicular to the organ, and which probably locks the organ securely to the inner surface of the vagina. The strong hold thus obtained, is often abundantly evident by the great extrusion of the female viscera in specimens captured in copula. It is quite singular that this spike is not exhibited in any of the many elaborate and apparently care- ful drawings of Mr. Saunders published in the Biologia; it is often plainly visible, projecting from the under surface of the penis in Hymenorus. The abdomen consists of five segments in both sexes. ~ The cedeagus proper is protected by a plate which is often extruded beyond but usually concealed beneath the fifth segment, the plate Coleopterological Notices, ITT. (cl being sometimes quite prominent behind in one or both sexes accord- ing to the genus;' it is generally deeply bilobed in the male and more or less truncate in the female, but may occasionally be com- pletely non-lobed in the male. Under the latter circumstances it has much the appearance of an additional segment, and is often designated the ‘‘sixth segment.”” It is, however, not a segment in any such meaning as is attached to the other abdominal segments, but is a part of the genital apparatus, and should more properly be termed the ‘genital armature.”? It probably serves no other pur- pose than a guide or protection to the cedeagus proper, the lobes of the male not constituting in any sense a clasping or locking organ. In view of the intricate affinities of the various genera and the complex, extremely prominent and greatly diversified sexual modi- fications of the antenna, palpi, eyes, tarsi, fifth ventral segment and genital armature in the various species composing them, a general and exhaustive study of the Cistelidze would undoubtedly prove one of the most instructive but, at the same time, one of the most laborious works which could well be undertaken. In the absence of a sufficiently general knowledge of the family, I feel therefore, that the characters employed in the following table will, in many cases at least, be ultimately found to possess far less value than would, with the comparatively limited material at my service, appear to belong to them. However, as represented in our fauna the genera may for the present be distinguished by the following characters :’— 1 The group ‘‘Cténiopides’’ of Lacordaire will probably not prove to be entirely natural, and as there are extremely few genera—Andrimus (Cteniopus Lec.), and possibly Androchirus—within our faunal limits ,which can be placed within it, I have disregarded it in the generic scheme which is here presented. A division into distinct groups, based upon the protrusion of the genital armature in both sexes, would give rise to difficulties analogous to those encountered in attempting to divide Mycetophila into distinct genera on certain prosternal characters, a statement of which will be given more fuliy under that genus. 2 I have been greatly aided in this investigation by material placed in my care by Prof. C. V. Riley and Mr. W. Jiilich, and also have to acknowledge my indebtedness to Mr. Champion for typical representatives of many of the Central American forms, which have been extremely useful in many cases besides that of proving the equality of Prostenus californicus and Xystropus Sulgidus. 12 Coleopterological Notices, III. Intercoxal process of the abdomen rather wide, with the apex more or less evenly and broadly rounded. Tarsi not lobed beneath. Antenne stout, incrassate and compressed, with the Bey joints quad- rate or transverse. diidae viowvegerpherscs saniseestenameten heme . KYStropus Antenne more filiform, with tiny subapical joints aoe than wide. Lystronichus! Tarsi lobed beneath ; body upiform, the antenne slender... Stenochidus Intercoxal process of the abdomen narrow, acute and angulate. Tarsi lobed beneath. Head in repose resting against the prosternum and coxe, the former Siromply declivous amteniOnlyinccscecmemeatae-Peetensestes . Lobopoda Head in repose free, the Lieatonnns before the coxe gue and less declivous. Prothorax more or less rounded at HES the sides never convergent toward base. Basal angles of the prothorax right or slightly obtuse, the body generally more or less oblong and parallel........... HYMenorus Basal angles of the prothorax more or less acute and posteriorly prominent; body broader and oval ............0+e0+000++. MIEMOCCeEUS Prothorax cordate, truncate at apex, the sides convergent and sinuate toward base, the basal angles rather prominent..........Velesicies Tarsi not lobed beneath. Third antennal joint generally subequal to the fourth at least in the female, in Isomira sometimes slightly shorter in that sex and more frequently so in the male; elytral strize often obliterated. Antenne shorter, generally stout, the joints strongly obconical; form of body oblong Midd eee punctuation and pubescence generally coarse and hao wi sevioambacienn beeGemee bette .. Mycetophila Antenne longer, more slantiee Ths joints very ‘tectily obconical or sub- parallel; form oval, the punctuation and pubescence usually minute and very dense. Secee ae Joeceeisa n . Isomira Third antennal joint REE distinctly sion Shs the fern but longer in the female than in the male. Anterior tarsi more or less dilated in the male. Legs short, the tarsi generally distinctly shorter than the tibiz ; body but slightly convex longitudinally. Mandibles notched at apex, the lobes equal and acute; elytra but feebly dehiscent and only very near the apex, the striz obliter- ated laterally ; genital armature deeply bilobed in the male. Tedinus 1 I feel obliged to employ this particular combination of letters for the generic symbol, since this is given as the original spelling in the Biologia. I have, however, not seen the work of Latreille in which it is so printed. Coleopterological Notices, IIT. 13 Mandibles obliquely truncate at apex, the truncation feebly, un- equally, obtusely bilobed; elytra strongly dehiscent in apical third to half, the punctured series distinct throughout the width ; genital armature sinuato-truucate and completely non-lobed in the male.. apnorontiieboddons Sauce Sanpsason . Andrimus Legs long and betes, me ties as igs as tne HIS body more longitudinally convex; mandibles deeply notched at apex, the lobes acute and subequal; elytra dehiscent in more than apical third, deeply striato-sulcate throughout the width ; genital arma- ture deeply bilobed in the male, the lobes very prominent. Capnochroa Anterior tarsi not dilated in the male, but usually strongly compressed and distorted ; body generally strongly, longitudinally convex. Mandibles distinctly notched at apex, the apices acute and subequal ; antennz more or less compressed and serrate ...............Cistela Mandibles very oblique and feebly notched at apex, the upper lobe much longer and broader than the lower, acute; antenne long and RINMOUNMN ste weriteo concn’ seccescompae essere cas snecvasesece sas oss s+ A MOrOCMAF US XYSTROPUS Sol. Prostenus Horn nec Latr. The head in Xystropus is almost of the same form as in Helops and some other allied genera of Tenebrionide ; in Stenochidus it is of a more strictly cistelide type, but still the general form of body recalls the Tenebrionide much more forcibly than any of the typi- cally cistelide genera which follow. In fact there seems to be some decided coordination between the form of the abdominal process and relationship with the Tenebrionide. This is my reason there- fore for placing Xystropus and its allies first instead of last in the series. In Xystropus as represented by califurnicus, the eyes are small, short and strongly transverse, the antenne moderate in length, stout, incrassate and compressed, the maxillary palpi moderate, with the apex of the fourth joint but moderately oblique and the angle at the base much less than right, resembling somewhat that of Helops californicus. The prosternal process is horizontal poste- riorly, then abruptly vertical to the level of the prosternal side- pieces, where it becomes strongly dilated, widely separating the latter at the posterior margin; the hind coxe are distinctly sepa- rated by a rounded abdominal projection. The legs are short, the tarsi without lobes, clothed beneath with long coarse hair, and with the basal joint of the posterior unusually short. The ungues are Annas N. Y. Acap. Sc1., VI, Nov. 1891.—6 T4 Coleopterological Notices, ITT. moderate in length, the outer contour almost evenly arcuate, the apex finely and acutely produced beyond the pectinate portion, the latter extending nearly to the base, the denticles fine, long and spini- form, gradually becoming very short toward base, eight or nine in number. The single tropical species which extends within our faunal limits may be described as follows :'— X. californicus Horn.—Trans. Am. Ent. Soc., 1867, p. 138 (Prostenus) ; fulgidus Makl.: Act. Soc. Fenn., X, p. 680.—Oblong-oval, evenly, moderately convex, polished throughout, the upper surface metallic red, the under black with steel-blue reflection ; legs and antenne black throughout; integuments devoid of .fine pubescence, the upper surface bristling with long erect sete from the coarse punctures. Head coarsely, very sparsely punctured, the eyes small; antenne one-half as long as the body, very stout, compressed, feebly attenuate through the last three joints, the ninth joint as wide as long, third distinctly longer than the fourth. Prothorax transversely oval, but little more than one-third wider than long, the sides feebly angulate at basal third; disk without trace of impression or basal fovee, extremely coarsely, sparsely and unevenly punctate, the large circular punctures intermingled with smaller ones. Llytra between three and four times as long as the prothorax, and, in the middle, about two-fifths wider, acutely parabolic at apex, the sides feebly arcuate, the humeri rather narrowly rounded and broadly exposed, the disk with unimpressed series of rather coarse close-set punctures; the intervals each with a single series of widely distant punctures, which are very much larger than those of the strie. Abdomen finely, sparsely punctured. Legs short, slender, the tarsi somewhat compressed, short, the basal joint of the posterior but slightly longer than the next two combined. Length 9.3 mm. ; width 3.5 mm. California; Mexico; Panama; Colombia. The representative from Panama, sent me by Mr. Champion, is precisely similar in every detail to the single specimen of Prostenus californicus in the LeConte cabinet at the Cambridge Museum. This indicates a distribution which certainly could not have been anticipated from analogy, at least in the present family. LYSTRONICHUS Latr. A comparatively composite genus in its present scope, essentially tropical in distribution, but extending to the extreme southern limits of the United States. 1 In stating the degree of separation of the eyes in terms of their own width in the descriptions which follow, the point of sight is assumed to be in a per- pendicular to the middle point of the interocular surface. Coleopterological Notices, ITI. T5 But one species has been described from our fauna, although two are said to be known from Texas. L. piliferus Champ.—Biol. Cent.-Amer., Coleopt., IV, Pt. i, Nov. 1888, p. 462. I have not seen any representative of this species. It is proba- ble, however, from the remarks made by Mr. Champion, that it will ultimately have to be separated from the more typical forms of the genus. It is ‘“‘oblong-ovate, feebly convex, obscure reddish-brown, opaque, above usually of a pruinose bluish-violet, obscure purplish, or green- ish-bronzy tint, the surface somewhat thickly clothed with long erect hairs, and also sparsely pubescent.”” The antenne are ‘‘very long, slender and filiform,” and the elytra have ‘‘rows of very minute punctures placed upon obsolete strie.” Length 6.0-8.3 mm.; width 2.0-3.5 mm. STENOCHIDUS Lec. In this genus the posterior coxe are moderately separated by a Short abdominal projection, which is evenly rounded at apex and quite similar to that of Xystropus, the anterior being separated by a rather wide, longitudinally convex prosternal process, which is strongly declivous and gradually attenuate behind. ‘The legs are long and slender, the penultimate joint of all the tarsi strongly lobed beneath, the antepenultimate joint of the anterior and inter- mediate also lobed but less strongly, that of the posterior simple ; these modifications are independent of sex. The mandibles are distinctly notched at apex, the two lobes sub- equal. The fourth joint of the maxillary palpi is elongate, more or less recti-triangular, and differs sexually in form as described below under S. gracilis; the last joint of the labial is short and robust, wider than long, with the inner side slightly shorter than the outer. The ungues are moderate in size, the external outline more arcuate near the apex, the latter being finely and acutely produced beyond the pectination, which is long and rather fine, the denticles six or seven in number. The general form of the body is elongate and convex, the pro- thorax subcylindrical, the integuments being more or less strongly granulato-reticulate and completely glabrous. The wings are well developed. 76 Coleopterological Notices, III. Stenochidus seems more closely related to Narses Champ. than to any of the other Central American genera, but the general aspect of the species must be quite different. Our species are only two in number and may be thus distinguished :— : Very dull, the legs black, with the basal three-fourths of the femora red. gracilis More shining, the elytral punctuation more distinct; legs black throughout. cyanescens S. gracilis Lec.—Ann. Lye. N.Y., V, 1851, p. 150.—Oblong, subparallel, strongly convex, black, the elytra sometimes with a bluish tinge, the basal three-fourths of the femora red; upper surface throughout very dull and strongly reticulato-granulose. Head and pronotum somewhat coarsely, very densely punctate; eyes small; antenne long and slender, gradually incras- sate. Prothorax quadrate (male) or very slightly transverse (female), the apex transversely truncate, almost as wide as the base, the latter very feebly bi-. sinuate; basal angles slightly obtuse and quite distinctly blunt; sides nearly parallel and feebly arcuate, slightly more convergent near the apex; disk feebly, cylindrically convex, not impressed ; fovee obsolete. lytra three and one-half times as long as. the prothorax and nearly one-half wider, rather abruptly, obtusely ogival in apical third; sides nearly straight, parallel ; humeri narrowly rounded and broadly exposed at base; disk with fine, minutely punctate strie; intervals not distinctly punctate. Abdomen more shining, finely, sparsely punctate. Legs very long and slender, the hind tarsi much shorter than the tibiw, with the basal joint distinctly longer than the remainder. ; Male.—EHyes separated by two-thirds more than their own width; antennz two-thirds as long as the body, slender, feebly inerassate, the ninth joint fully twice as long as wide; maxillary palpi with the fourth joint rather more than twice as long as wide, the angle at the support distinctly more than right, the apex a little longer than the outer side; abdominal punctures strong, becom- ing closer toward apex, the fifth segment entire at apex, with the surface broadly feebly impressed along the middle. : Female.—Kyes separated by fully twice their width ; antenne one-half as long as the body, gradually, rather strongly incrassate, the ninth joint obconical, one-half longer than wide; fourth palpal joint recti-triangular, twice as long as wide, the apex not at all longer than the outer side; abdomen very minutely, feebly, sparsely and evenly punctate throughout. Length 7.0-8.0 mm.; width 2.3-2.9 mm. California (Santa Cruz and San Diego Cos.). The elytral striz are more strongly impressed in the female, very feebly so in the male, and the third and fourth antennal joints are equal in both sexes. The male is generally distinctly more slender than the female. Coleopterological Notices, ITT. Te S. cyamescens Lec.—Proc. Ac. Phila., 1859, p. 78.—Elongate, the body, legs and antenne throughout black, rather strongly shining. Head rather coarsely, densely punctate. Prothorax but slightly wider than long, nearly as in gracilis but more finely, not so densely punctate, the punctures all narrowly separated. lytra four times as long as the prothorax in the male, distinctly shorter in the female, one-third wider than the latter, the humeri narrowly rounded and broadly exposed; disk with feebly impressed series of rather coarse impressed punctures, the intervals nearly flat in both sexes and minutely, sparsely punctate, the punctures arranged in single series and more distinct in the male. Legs and abdomen in both sexes nearly as in gracilis. Male.—Eyes rather large, separated by one-fourth more than their own width ; antenne two-thirds as long as the body, just visibly stouter toward apex, the ninth joint much more than twice as long as wide and nearly parallel. Female.—EHyes separated by nearly twice their width ; antenne one-half as . long as the body, feebly incrassate toward apex, the ninth joint very feebly obconical and nearly twice as long as wide. Length 8.0-9.0 mm.; width 2.38-2.8 mm. Nevada; California (Siskiyou Co.). This species greatly resembles gracilis, but is more slender and rather less convex, with the legs entirely black, and the punctures of the elytral striz much larger and more conspicuous. All the specimens before me are deep black, but, as the name indicates, the color may perhaps occasionally be of a bluish tinge. LOBOPODA Sol. Allecula Say, Lec. The species of Lobopoda are, as a rule, above the average of the family in point of size, and are sometimes surprisingly closely allied among themselves. The form is generally more or less oblong-oval and gradually pointed behind, and the punctures of the elytral series are almost invariably finer or more or less linear toward apex, often becoming completely obsolete. The tarsal lobes are especially highly developed, and generally differ sexually to a marked degree, the lobes of the penultimate joint being, however, usually free from sexual modification. Attempts have been made to subdivide the genus upon the basis of variation in the number and disposition of the lobed joints in the male and female, but, as in most characters of this nature, there are so many intergrading forms, that these efforts have only met with partial success. These tarsal modifications are useful, however, in tabulating the 78 | Coleopterological Notices, III. species, but as the number of representatives within the limits of the United States is comparatively small, and as the male of several of our species is still unknown to me, I have, in the following pre- liminary table, simply employed general characters relating to superficial form and sculpture, and based upon the limited material before me. Our species as far as known may be distinguished as follows :— Pronotal punctures very sparsely and unevenly distributed, generally more or less densely aggregated along the median line and in front of the scutellum. Pronotum rather polished, the punctures circular and perforate.......s0Ccla Pronotum exceedingly dull and alutaceous, the punctures larger, uneyoune size, shallow, elongate and variolate.. soesos attics . Subcuneata Pronotal punctures more closely placed ad a ate Fie eile impressed. Eyes in the female separated by approximately one-half their width. Eyes in the male not quite contiguous, their inner margins broadly POLIS Oisiiciva Saalcaedorac en eieattamendent Mies aemeane cele eetecniere . punctulata Eyes in the ae aahcoutianene alee a long fine scenic double line. oculatifrons Eyes in the female separated by distinctly less than one-half their width ; legs usually red throughout ..........0ececcseceeeseceeeee CPY ChYrOCHE MIS Eyes in the female separated by fully their own width....................Aatra A number of additional species will almost undoubtedly be dis- covered when southern Texas is more thoroughly and systemati- cally explored. ; L. socia Lec.—Proc. Ac. Phil., VII, 1854, p. 84.—Elongate-elliptical, castaneous above, the under surface and posterior legs blackish ; anterior and intermediate legs and antenne rufo-castaneous ; integuments rather polished throughout, the pubescence voarse, rather short, sparse. Head somewhat finely, sparsely, unevenly punctate; eyes large and approximate; antenne very slender and filiform, nearly one-half as long as the body, the joints cylindrical and nearly four times as long as wide, the third slightly shorter than the fourth. Prothorax not quite twice as wide as long, the apex truncate and three-fourths as wide as the base, the latter transverse, the sinuations broad and strong; sides just visibly convergent from the basal angles to ante- rior third and straight, thence strongly rounded to the apex; basal angles right, not appreciably blunt; disk rather coarsely, very sparsely and unevenly punctate, the punctures larger and closer before the scutellum and narrowly along the median line; basal fovee large and distinct. lytra four times as long as the prothorax, and, in the middle, about one-fourth wider, gradually acute toward apex, the base very slightly wider than that of the prothorax ; sides feebly, broadly arcuate; disk with rather fine, very even, moderately impressed series of somewhat coarse, deep, close-set punctures, the intervals nearly flat, finely, sparsely punctate. Abdomen finely but strongly, very Coleopterological Notices, ILI. 79 sparsely punctate. JZegs long and slender; basal joint of the hind tarsi four- fifths as long as the remainder. Male.—Unknown. Female.—Eyes separated by one-fourth of their width ; anterior tarsi with the two basal joints simple, the third rudimentarily lobed, the fourth strongly lobed, the intermediate with the three basal joints simple, the fourth strongly lobed , posterior simple, the penultimate joint with a short, narrow, extremely rudimentary lobe. Length 11.0 mm.; width 4.2mm. 9. Texas (Laredo). Cab. LeConte. The description is drawn from the female. It is very closely allied to mexicana Champ., but differs from the corresponding sex of that species in its slightly closer punctuation on the elytral inter- vals; there are usually but two punctures in a transverse direction in mexicana, while in socia there are about three, which are rather smaller than in the former. This is the only decided difference of any kind which it is possible to discover, but I think that the two species are distinct and that this would be clearly evident if the males were compared. The elytra are perfectly simple and nar- rowly rounded at apex in the female of socia. This species is not at all closely related to punctulata. L. subcuneata n. sp.—Elongate, moderately convex, the elytra cuneate, black throughout, the head and prothorax smooth but dull and strongly alu- taceous, the elytra more shining; pubescence coarse, moderate in length, very sparse. Head finely, rather densely, unevenly punctured, the epistoma coarsely, much more sparsely so and more shining; eyes very large; antenneze filiform, fully one-half as long as the body. /Prothorax three-fifths wider than long, the apex truncate and two-thirds as wide as the base, the latter trans- verse, with broad and deep sinuations, the angles right, not blunt; sides parallel and straight in basal two-thirds, then broadly, evenly rounded to the apex; disk extremely obsoletely impressed along the middle, coarsely, extremely unevenly punctate, the punctures mingled with smaller ones, dense toward the median line and base, sparse laterally, with two large impunctate - discal areas; punctures shallow and variolate, the larger ones elongate-ellip- tical in form; basal fovee large and distinct but shallow. lytra four times as long as the prothorax, and, just behind the humeri, very slightly wider ; sides feebly convergent and nearly straight from this point nearly to the apex, which is then more abruptly, acutely rounded; disk finely but distinctly striate, the striz very finely, not closely punctate, the intervals nearly flat, finely, extremely sparsely punctate. Abdomen in the male finely, not strongly, very sparsely punctate throughout. Legs slender, the hind tarsi nearly as long as the tibize, with the basal joint equal in length to the remainder. Male.—Eyes nearly as in punctulata; antenne with the third joint but 80 Coleopterological Notices, ITT. slightly shorter than the fourth; tarsal characters as in punctulata, except that the third joint of the intermediate tarsi is feebly lobed. Female.—Unknown. Length 9.0 mm.; width 3.0mm. @%. Texas. The unique specimen, which is fortunately a male, represents a remarkably distinct species, not at all closely related to any other here described, and readily known by its cuneate elytra, dull lustre and peculiar pronotal punctuation. The anterior tibie of the male are broadly, very obtusely fontnen internally at basal two-fifths, this character being common to the males of a large number of species; in punctulata and oculatifrons it is more nearly in the form of a broad swelling. L. punctulata Melsh.—Proc. Ac. Phil., III, 1846, p. 59.—Elongate- oval, dark castaneous; under surface and legs piceous-black, the tarsi and antenne rufo-ferruginous ; surface strongly polished throughout, the pubes- cence rather fine, somewhat long and sparse. Head rather strongly, sparsely punctate; eyes very large; antenne slender, filiform. Prothoraz one-half to three-fourths wider than long, the sides distinctly convergent and nearly straight from the basal angles nearly to the apex, then strongly rounded for a short distance to the apex, which is truncate and three-fourths as wide as the base, the latter transverse, the sinuations broad and deep; basal angles right, not blunt; disk obsoletely, broadly impressed along the middle, very coarsely, nearly evenly and rather closely punctate, the punctures separated by two to three times their width ; basal fovez distinct. lytra four times as long as the prothorax and scarcely perceptibly wider than the base of the latter, gradually acute behind from the middle; sides nearly straight thence to the base; disk rather finely but deeply striate, the punctures moderately coarse and not very approximate; intervals feebly convex, rather finely and not very closely punctured. Abdomen somewhat strongly, sparsely punctate, ° a little more closely so along the middle in the male. Jegs long, slender, the basal joint of the hind tarsi equal in length to the remainder. Male.—Narrower than the female; eyes broadly rounded throughout inter- nally and subcontiguous through an interval equal to one-half the length of the epistoma ; antennez fully one-half as long as the body, with the third joint two-thirds as long as the fourth; anterior tarsi with the four basal joints strongly lobed beneath, the intermediate with the fourth only, the posterior with the penultimate narrowly and rudimentarily lobed. Female.—Kyes separated by fully one-half their own width; antenne two- fifths as long as the body, the third joint but slightly shorter than the fourth ; anterior tarsi with the three basal joints perfectly simple, the fourth strongly lobed, intermediate and posterior nearly as in the male. Length % 9.0, 9 9.3-9.7 mm.; width 4% 3.0, 9 3.5-3.7 mm. Coleopterological Notices, ITI. 81 Texas; Kansas; New Jersey. The elytral intervals are slightly more sparsely punctured in the male than in the female. Punctulata may be distinguished at once from socia by the pronotal punctuation, the punctures being widely dispersed except toward base and narrowly along the middle in the latter, and the size of socia is much greater. In punctulata the eyes are not absolutely contiguous in the male, but are separated by a narrow setose isthmus; in oculatifrons they are contiguous along a fine straight double line which is however also setigerous. L. oculatifrons n. sp.— Elongate-oval, moderately convex, black throughout; anterior tarsi ferruginous; antenne piceous, gradually paler toward apex; lustre polished throughout, the pubescence rather long, fine, moderately sparse, piceo-fulvous in color and not at all conspicuous. Head rather coarsely, sparsely punctate; eyes very large but extremely unequal in the sexes ; antenne long, slender and filiform, one-half as long as the body. Prothorax from one-half to two-thirds wider than long, subquadrate, the sides almost parallel and straight in basal two-thirds, then strongly, evenly rounded to the apex, the latter truncate, three fourths as wide as the base, which is transverse, the sinuations broad and very strong; basal angles right, not blunt; disk coarsely, evenly and somewhat closely punctate throughout, obsoletely impressed along the middle; punctures generally separated by two to three times their width; basal fovee distinct. lytra four times as long as the prothorax and about one-fifth wider, gradually acute behind from about the middle, the sides parallel and nearly straight toward base; humeri very narrowly exposed ; disk rather finely but strongly, evenly striate, the strial punctures moderately coarse, deep, perforate and rather approximate; inter- vals nearly flat, finely punctate, sparsely so in the male, decidedly densely so ‘in the female. Abdomen rather finely but strongly, sparsely punctate, not noticeably more densely so along the middle in the male. Legs long and slen- der; basal joint of the posterior tarsi fully equal in length to the remainder. Male.—More slender than the female, the eyes extremely large, contiguous along a fine straight line which is nearly as long as the entire epistoma ; antennez with the third joint two-thirds as long as the fourth; tarsal char- acters as in punctulata. Female.—Eyes separated by slightly more than one-half their width ; anten- nal and tarsal characters as in punctulata. Length % 9.5, 9 10.2-10.8 mm.; width 4 3.2, 9 3.8-4.0 mm. Texas. This species, while allied to punctulata, may be easily distin- guished by its larger size, more parallel and subquadrate prothorax, intense black color, the larger eyes of the male and the decidedly denser elytral punctuation especially of the female. The difference in the density of elytral punctuation of the male and female is extremely pronounced. 82 Coleopterological Notices, III. L. erythrocnemis Germ.—Ins. Spec. Nov., 1824, p. 164.—Oblong- oval, moderately convex, polished, black above and beneath, the legs and antenne throughout rufous ; pubescence coarse, fulvous, moderate in length, sparse. Head somewhat strongly, very sparsely, unevenly punctate; eyes large; antenne slender, about one-half as long as the body, the third joint slightly shorter than the fourth in both sexes. Prothorax one-half wider than long, the sides parallel or feebly convergent from the basal angles to anterior third, then strongly rounded to the apex, the latter truncate and fully two- thirds as wide as the base, the sinuations strong; disk extremely obsoletely impressed along the middle, not very coarsely, rather evenly and unusually sparsely punctured, the basal fovee almost obsolete. lytra but slightly wider than the prothorax and about four times as long, the apex acutely ogival ; sides nearly parallel and straight; disk finely but deeply striate, the strial punctures moderate, rather large and perforate toward base, smaller but still distinct to the apex; intervals finely, sparsely punctate. Abdomen finely but distinctly, very sparsely punctate. Legs slender. Male.—Eyes separated by a narrow isthmus, the inner margins broadly, evenly rounded; tarsal characters as in punctulata. Female.—Hyes separated by one-third to nearly two-fifths their width. Length 8.5-9.5 mm.; width 2.9-3.6 mm. % 9. Louisiana. The male above noted has the legs piceous-black, and the same condition exists in one of the females. Two other females have the legs normally red throughout, the species is apparently variable therefore in this respect. It may be distinguished from punctulata by its smaller size and much sparser, feebler pronotal punctures, as well as the more approximate eyes of the female, although in the male they do not appear to be quite as approximate as in the cor- responding sex of punctulata. As remarked by Mr. Champion, erythrocnemis is allied to the Mexican lzxvicollis, but the latter differs in its longer, more slender form and still sparser, more un- evenly dispersed pronotal punctuation. Hirythrocnemis probably inhabits the Mississippi valley as far to the northward as southern Illinois. L. atra Say.—Journ. Ac. Phil., V, 1827, p. 242; nigrans Melsh: Proc. Ac. Phil., III, 1846, p. 60.—Elongate-oval, strongly convex, black throughout, the tarsi alone paler, rufescent, polished throughout, the pubescence moderate in length, coarse, fulvous, rather sparse. Head coarsely, very sparsely, un- evenly punctate, the eyes moderate or small; antenne slender and filiform. | Prothorax rather long, two-fifths wider than long, the apex truncate, fully three-fourths as wide as the base, the latter transverse, with the sinuations broad and deep; basal angles right; sides parallel and straight in basal two- thirds, then arcuate and convergent to the apex ; disk unusually convex, not Coleopterological Notices, ITI. 83 at all impressed, not very coarsely, rather feebly, evenly, sparsely punctate, the basal fovee broadly impressed, distinct. .Hlytra a little more than three times as long as the prothorax and scarcely at all wider, gradually, acutely ogival in apical two-fifths ; sides parallel, nearly straight ; disk very coarsely, deeply striate, the strial punctures unusually coarse and deep toward base but totally obsolete toward apex, the intervals rather convex, finely, sparsely, contusedly punctate. Abdomen finely but strongly, sparsely punctate. Legs slender; basal joint of the hind tarsi equal in length to the remainder. Male.—Not examined. _ Female.—Hyes separated by their own width; third and fourth antennal joints equal; tarsal characters similar to those of punctulata. Length 7.5 mm.; width 2.7-2.9 mm. 9°. Connecticut ; Pennsylvania. The present species is chiefly notable for its extreme northern habitat. ‘The eyes are much smaller than in any of the others here enumerated, and it is also remarkable in having the punctures of the elytral strie unusually coarse and conspicuous toward base; but, as is often the case, they become completely obsolete toward apex. HYMENORUS Muls. The two genera Lobopoda and Hymenorus are peculiarly A meri- can, and together comprise probably more than one-half of the entire family in our continent, the former being essentially tropical but entering the southern parts of the United States in moderate number, and the latter northern in its distribution but overrun- ning Mexico with many species. Hymenorus is a nearctic, and, to some extent also, a palearctic genus, while Lobopoda is entirely neotropical. Hymenorus is one of the best defined of our genera, although the species are comparatively diversified in facies. The Species are as a rule much smaller than those of Lobopoda. The lobes of the tarsi in Hymenorus generally differ from those of Lobopoda in being small, and never more than two in number on the two anterior and one on the posterior pair. The last joint of the maxillary palpi is usually in the form of a right angled tri- angle, with the apex and the outer side subequal in length, but rarely it becomes more dilated and quite similar to the prevailing type in Lobopoda and Allecula. The anterior coxe are always separated by a narrow but distinct prosternal process, and the posterior by a narrow acutely angulate abdominal projection, the entire structure 84 Coleopterological Notices, ITI. of the under surface being surprisingly constant throughout the genus when compared, for example, with that of Mycetophila. The posterior tarsi are always slender, with the basal joint elon- gate and sometimes slightly less, but often much greater, in length than the remainder. The punctuation and pubescence are, as a rule, rather dense, the latter pale, somewhat short, coarse and con- spicuous. The eyes are generally moderate and subequal in size in the two sexes, but sometimes larger, approaching the form seen in Lobopoda; they are then nearly always subject to the sexual modi- — fications characterizing that genus. The antenne are usually slen- der and filiform, moderate in length, with the joints more or less obconical, sometimes stouter and distinctly attenuate toward apex, the third joint being nearly always equal to or slightly longer than the fourth and similar in the sexes, but in a moderate number of species becoming very short in the male, although still normal in the female. The general form of the body is oblong or oval, rather compact, with the prothorax subequal in width to the base of the elytra, the humeri never being in the least broadly exposed at base. The elytra are almost invariably distinctly punctate-striate, although in many cases the strial punctures become obsolete toward apex as in Lobopoda, and in one instance—inquilinus—the strize are com- pletely effaced throughout, being traceable with great difficulty only in the immediate neighborhood of the base. While the species are usually constant and easily separable among themselves by marked structural differences, sexual or otherwise, I have found the tabular classification of them a most difficult and unsatisfactory problem. None of the structural peculiarities so valuable in separating allied forms, continue constant throughout a sufficient number of species to enable us to define large groups with rigorous exactness, and I have been forced finally to adopt a method of subdivision depending largely upon general habitus and sculpture. There are probably but few species common to the United States and Mexico, at least below the latitude of Durango. Mr. Cham- pion has kindly sent me representatives of his emmenastoides, palli- dus, colonoides, guatemalensis and americanus, all of which are widely different from any species which we possess. The densely punctate species, so characteristic of the southwestern fauna, are for the most part more or less local in distribution, contrasting strongly Coleopterological Notices, ITT. 85 in this respect with the more northern and eastern polished and sparsely punctate forms. It is hoped that the following table may aid somewhat in identi- fication, but as there are undoubtedly many species yet to be dis- covered, it will probably prove more or less ambiguous unless used solely as a key to the descriptions :— Punctuation of the elytral intervals confused or forming more than a single series . 50000000 an 20d 800 Ghelgcd dap aheiCoagoc-nbe Eda seb dau SOGOON DE AoC EINES OnGede GEO LTO er Eeeeotion of the screal iNet aye casera’ a cle EVE SECHICS saeacdeas smear Zo 2—Entire upper surface polished, the pronotal punctuation sparse; basal joint of the hind tarsi generally much longer than the remainder ; antenne variable in eee and structure, the third joint often sexually modified.. 26.000 68 sain st eats Neavele, Sadat eunenaseneasare Upper surface erally n more or aes dant: fine Bea densely punctured ; third joint of the antenne not noticeably modified sexually............60...8 #—Third antennal joint of the male equal or subequal in length to the fourth.. oA donee co - GDUICID ORR COO BE COON SO NEO OOD EO DURE CA Third Baal Bein of the vie Reece see aon the aie castes. Ae Miviralestrice OWSOlete tOW ATG APEX ... ..-.e0csesns ceeves cercascnsceecseessonecesecacced Pimialestmrendistinet throuchout the length o....0.06s00cccase vneccrsesccs sereessconar o—HElytra with a large humeral red spot; size very small....1 humeralis Elytra without basal pale area. Antenne short, barely two-fifths as long as the body. PLOtMorax StrOnely LOUNEd At APEX ..a.cesceceeces cessed cereves 2 niger Prothorax much shorter and more transverse ; Parente at apex. 3 imnfuscatus Antenne long, about one-half as long as the body ; size much larger. 4 picipennis 6—Prothorax strongly transverse; eyes small, separated by nearly one-half more than their own width in the male..................5 punctulatus Prothorax longer; eyes larger, separated by their own width or but slightly more. Pronotum finely or moderately coarsely punctate. Form slender, parallel; antenne short, scarcely more than one-third, as long as the body.. haar seocoseseceeeeed MeIShHeiImMmeri Form broad, oval; ae fully eee fifths as long as the body. 7 obesus Pronotum coarsely, deeply punctate ............ nolsngdea 8 pilosus “%—Antenne long, fully one-half as long as ine mae aired punctuation coarse. Third joint (male) much longer than the second and more than one-half as long as the fourth. Intermediate joints of the antenne strongly obconical, scarcely twice as long as wide; prothorax long and subequal in width to the base of the Ey Wane enact aisrsiessicdcivecicee chwcesiseeees eveateavecdsessedcdeceseceserend GQEUMCIIIS 86 Coleopterological Notices, IIT. Intermediate joints feebly obconical, much more than twice as long as wide; prothorax much shorter and more transverse, distinctly narrower than the base of the elytra.. sGawsiekeedabectess © .10 perforatus Third joint (male) but slightly ioacen than ie Bond oat rather less than one-half as long as the fourth... j.:-- 20. scsenseeene see 11 curticollis Antenne shorter, about two-fifths as pee as the pai, | Pronotum rather finely punctured, strongly but broadly rounded at apex. 12 obscurus Pronotum shorter, coarsely punctate, broadly, feebly arcuate at apex, the sides less convergent from the basal angles ; size much smaller. 13 communis S—Eyes large, separated by a distance which in neither sex exceeds one-half of their width; antenne generally notably long; basal joint of the hind tarsi usually much longer than the remainder. ........ 00. .0c ass cseseeecese eee Eyes small or moderately large, always separated i more fies one-half of their own width, usually similar in the sexes; anes: gne short ; basal joint of the hind tarsi variable... .scc. ssn , Coleopterological Notices, ITI. 46 Hl. uniseriatus n. sp.—Oblong-oval, rather narrow, convex, highly polished and pale flavo-testaceous throughout; pubescence somewhat long and semi-erect, coarse, pale and sparse. Head distinctly, evenly convex, coarsely, deeply, rather sparsely punctate; eyes small, separated by one-half more than their own width; antenne moderately stout, a little less than one- half as long as the body, the joints rather strongly obconical and scarcely one-half longer than wide, the third scarcely as long as the fourth in the female. Prothorax about one-half wider than long, the apex three-fourths as wide as the base, feebly arcuate; sides parallel and almost straight in basal two-thirds, the apical angles broadly rounded; base transverse, the sinua- tions broad and rather distinct; basal angles right, distinctly, narrowly rounded ; disk broadly, feebly impressed in the middle toward base, coarsely, rather sparsely punctate, the basal fovee small but quite distinct. Hlytra nearly four times as long as the prothorax and about one-half wider; sides parallel, broadly arcuate behind, the apex ogival; humeri rounded, rather broadly exposed ; disk with series of rather coarse, deep, moderately approxi- mate punctures, the series scarcely at all impressed except very feebly toward the suture; intervals each with a single even series of very fine punctures. Abdomen finely, sparsely punctate, the prosternum very densely so. Legs moderate, slender; basal joint of the hind tarsi slightly longer than the remainder. Length 5.0 mm.; width 1.9 mm. California. The unique specimen is a female and it is possible that in the male, the third antennal joint will prove to be quite distinctly shorter than the fourth. This species is decidedly aberrant in the form of the prothorax, which is more subquadrate, in the smaller eyes and especially in the arrangement of the elytral punctures. JI am however unable to perceive any structural characters, which would warrant its removal from the present genus. The maxillary palpi are of a common form, the fourth joint being almost evenly recti-triangular, with the oblique apex about equal in length to the outer side. ) MENGECEUS Champ. Assuming M. crassicornis Champ. as the type of this genus, its characters may be briefly stated as follows :— Body oval, rather broad and moderately convex, the sides of the elytra con- tinuous in curvature with those of the prothorax, the basal angles of the latter acute and slightly produced posteriorly. Head small, short, deeply inserted, vertical in repose, the fourth joint of the maxillary palpi very broad, the apex nearly one-half longer than the outer side; terminal joint of the labial short and robust. Antennz stout, the intermediate joints dilated in Coleopterological Notices, IIT. 123 the male. Prosternal process horrizontal, tumid posteriorly, then abruptly vertical and excavated to the level of the prosternal side-pieces. Legs and tarsi throughout as in Hymenorus. The general form of the body approaches some of the species of Cistela or Isomira, but apart from the characters above mentioned the genus is very closely related to Hymenorus. Some of the species of the latter genus such as inqutlinus, fusicornis and porosicornis are more or less allied to Meneceus, but the form is narrower, the prothorax less transverse, and the basal angles not posteriorly produced. This last feature constitutes really the only important difference between Mencceus and Hymenorus. - One species, which however differs from the typical form in having the prosternal process and antenne as in Hymenorus, is described in the Biologia by Mr. Champion from southern Texas ; I have seen no representative of it, but the original description is as follows :-— M. texanus.—‘‘ Ovate, rather broad, piceous-brown, dull, thickly pubes- cent. Head sparsely and rather coarsely punctured; eyes (% ) very large, narrowly separated ; antenne (% ) stout, rather short, ferruginous ; prothorax very broad, the disk obsoletely canaliculate behind, the surface closely (but not densely), finely, and shallowly punctured ; elytra finely punctate-striate, the interstices quite flat and finely and rather closely punctured ; legs ferru- ginous ; the lateral lobes of the last ventral segment broad and spoon-shaped and clothed with long hairs at the apex.’’ Length 74 mm.; width 3} mm. This species is stated to be much broader than M. crassicornis, with the pronotum more finely and sparsely punctured. TELESICLES Champ. This genus is very closely related to Hymenorus, the characters throughout being similar, with the exception of the form of the prothorax, the apex being transversely truncate and the sides con- vergent toward base and feebly sinuate; this form is however so radically different from anvthing known in Hymenorus, as to give quite a distinct and peculiar habitus to the species of Telesicles, and there can be but little doubt that the genus is a really valid one. It is simply a good illustration of the statement made in the introductory remarks to the present family, that generic differences often depend ‘more upon general facies or appearance than upon any decided modification of special organs. 124 Coleopterological Notices, IIT. Our single species is as follows :— T. cordatus Champ.—Biol. Cent.-Amer., Coleopt., IV, Pt. i, Nov. 1888, p- 451.—Oblong, rather depressed, polished and pale ochreous-testaceous throughout; pubescence rather short, semi-erect, coarse and sparse. Head feebly convex, rather strongly, not very densely punctate; eyes small,-sepa- rated by nearly one-half more than their own width; antenne slender, fili- form, nearly one-half as long as the body, intermediate joints feebly obconieal, about twice as long as wide, the third and fourth equal. Prothorax one-half wider than long, the apex transversely truncate, four-fifths as wide as the base, the latter transverse or just visibly, evenly arcuate throughout, the sinuations obsolete; sides broadly arcuate, convergent in basal third and be- coming strongly sinuate just before the basal angles, the latter right, some- what prominent, not at all blunt; disk evenly convex, not impressed, rather coarsely and sparsely punctate; basal fovee broadly impressed and alinost obsolete. lytra about three times as long as the prothorax and one-fourth wider than the disk of the latter, abruptly, acutely ogival at apex; sides parallel and nearly straight; humeri narrowly rounded and quite broadly exposed at base; disk with extremely feebly impressed series of rather coarse deep punctures, which become much less distinct near the apex: intervals flat, finely, confusedly and very sparsely punctate. Abdomen finely but dis- tinctly, sparsely punctate. Legs rather short, slender, the basal joint of the hind tarsi nearly as long as the remainder. Length 5.5-5.8 mm.; width 2,0—2.1 mm. ‘Texas (Hl Paso). Mr. Dunn. There seems to be very little sexual difference, the eyes being just visibly less distant in the male, and the fifth segment a little more acutely rounded behind in that sex. MYCETOCHARA! Berth. Several attempts have been made to subdivide this genus but all more or less unsuccessfully, for, although easily divisible into groups by certain comparatively constant prosternal characters, it is found that each group contains species which, in general habitus, are strongly suggestive of homologous species in some of the others. 1 The correct designation of this genus is involved in considerable uncer- tainty, and for this reason I at first determined to make use of the name given in the Munich Catalogue, quite forgetting the familiar fact that Mycetophila had been used by Meigen in 1803 for a genus of Diptera. The word here adopted is that proposed by Seidlitz in the most recent edition of the “Pauna Baltica,’’ and is considered by that author to be two years earlier than Myce- tochares Latr., the former having been printed in 1827, while the latter was not published in a properly latinized form until 1829. Coleopterological Notices, IIT. 125 In other words each group is so heterogeneous, and the interos- culating lines of affinity between them so numerous, that it seems impossible to consider them as having full generic value. The form and extent of the anterior coxe and of the prosternal process which separates them, constitute the best characters for minor subdivisions, for these appear to be the most constant within the limits of the groups. The fourth joint of the maxillary palpi is usually in the form of a right-angled triangle, with the right angle at the point of attach- ment, but sometimes the two sides form an angle which is slightly less than right, the apex becoming shorter; it is generally quite robust, but occasionally becomes decidedly slender. The eyes, tarsi and antenne vary greatly in size and form in the various species, and appear to be but slightly affected by sex. The sexual differences are stated to be quite pronounced in many of the European species, but in the North American they are cer- tainly not remarkably so, and, as there is often much difficulty in determining the sex of individuals, but little attention has been given to this subject in the following descriptions. The punctuation generally varies to a considerable degree, and sometimes appears to be coarse or rather fine in the same individual according to the direction of the reflected light; the elytra often have to be held, therefore, in a very oblique position with reference to the light, in order to see that the impressed lines, which are nearly always distinct, are not accompanied by series of punctures in such species as fraterna and nigerrima. Our species may readily be separated into three groups as follows: Anterior coxze rather small, separated by a comparatively wide prosternal process, the latter longitudinally convex and attaining the level of their Nee I Ye ctole ets vs/aice.o(s) cir’ sie c/aidelisialaieojateciaslo\nalela insures’ ealelsineia eet eisieleieinp asinisesiaae ove ll Anterior coxe separated ier a thin aan leas The coxe very large, conoidal aud prominent, almost contiguous at apex, the prosternal lamina deeply placed between them, and generally more arless Norizontal ...... 0.0.0... 308 opi ncnusssetiasocns! UL The coxe rather detail) tite iaaiiala eee convex ven ee the aides OME MENTE UPI CO Sian cats caie'catelaclslsipvieisaisole suclvceiciesisesivas cas oceiecedecccsessde'ccs ooo MMM Groups I and II both contain species with and without the red humeral spots, and these groups are peculiar to the eastern parts of the continent. Group III contains no species as far as known with the humeral maculation, and is peculiar to the regions west of the 126 Coleopterological Notices, III. Rocky mountain divide. These groups are nearly, but probably not exactly, equivalent to those which have been indicated in the Huro- pean fauna. Group I. Elytra with a more or less extended humeral spot of pale rufo-testaceous. Elytra devoid of punctured series. Eyes small. Pubescence excessively short and sparse; form rather narrow and COM VE Xceed A pects . haldemani Pitancones Soa Font Brodie aude more edb puescedle prothorax more TEARS VEESC Sik giehncneatemantentoe sateetecgeeees wescosecreereeee hPAterna Eyes very eee 3 _alytzal Freee ceonele Fania bee ite distinct PUNCTUAL SeTIES «......cccoeieae cee coe ecw acninceanelese gen ssciesnesnises canoe MAN =e a Ene Elytra with distinct series ane Taek punctures. Pronotum “hardly punctured’? ..........c.ss0es+ sc ect cus cet ers erase GUST ONS Pronotum distinctly, deeply punctured. Form rather slender and depressed ; head and prothorax small; elytra distinctly more than twice as long as Wide .........0..+s0+.00--- LEMUIS Form more convex; prothorax larger. Elytra twice as ae as wide; antennz ae rufo-testaceous through- OUlGfcwsniec ances a a sisaiectee . foveata Elytra Meany more Tee ie nied "leans ee aan ; antenne ~ piceous-black, pale near the base; pubescence longer and more CLECt Are sssskinsness wdinidan ceisloentale sine seis else eo owiaaeolelt aisle sate aimee RIN ERED NE Elytra amigelorons inoue monte Elytra without punctured series ; surface ee Eire es black, very finely, Sparsely.pumnctuine diecestescleerencieccineiesoee -teeciartnee . migerrima Elytra with distinct series of coarser Situennees: Prothorax much narrower than the elytra and but slightly wider than the head, sparsely punctate; eyes large.. SpA ae . Sracilis Prothorax scarcely narrower than the blige a, ance ae ion the head, coarsely and very densely cribrate; eyes small...................rUfipes Group II. Elytra with a red humeral spot. Pronotum narrowly, abruptly explanate at the sides........... marginata - Pronotum not explanate at the sides. Eyes rather small, separated by twice their width; prothorax equal in width to the elytra... et albsekiet aeataphibecneeate . Dinotata Eyes large, separated by bab uae more hos ihe width ; prothorax marrower than)the elytra. ss ioc ..620: ose scoccecssiecs aceces ess ascmesiene o¢: ORD MMM ED Elytra without humeral red spot. Prothorax smooth, polished, extremely finely, sparsely punctured; elytral strie very deeply impressed, almost sulciform; size large........ DICOlOr Coleopterological Notices, III. 127 Prothorax coarsely, rather densely punctured; elytral strie moderately impressed. Pronotum not explanate at the sides; under surface desi paler, with the two anal segments darker............0.s0008 seeker eainers analis Pronotum explanate laterally Lomena wre ae beg end brown, the apical segments not darker ; elytral strie more even ....ltuguUbris Group III. Sides of the prothorax parallel or feebly divergent toward base; hind tarsi very long and slender. Eyes large; prothorax but slightly narrower than the elytra; hind tarsi with the basal joint as long as the remainde-............... longipennis Eyes small; prothorax equal in width to the elytra; basal joint of the hind tarsi as long as the remainder............. a gus . pacifica Eyes moderate; head and Se civ very rt cen nee ; hind tarsi with the basal joint much shorter than the Prccndeir tak pace Sides of the prothorax convergent toward base. Posterior tarsi slender ; elytral humeri ince exposed. Elytra with punctured Series .........0.ssecseeceece eee ses ese eee ee PUDIPeCMMIS Elytra without trace of panetared series ; fr eo more robust, the prothorax strongly transverse........... bese -mevadensis Posterior tarsi very short and Moats svete eeu anne? crassulipes * | M. haldemani Lec.—N. Spec. Col., 1866, p. 140.—Oblong, sub- parallel, rather strongly convex, highly polished throughout, black; the under surface paler, rufo-testaceous; legs flavate; antennz fuscous, flavo- testaceous toward base; each elytrou with a large basal red spot extending obliquely from near the suture to the humerus; pubescence excessively minute, sparse, recumbent and entirely inconspicuous. Head feebly convex, very minutely, sparsely punctate; eyes small, not prominent, separated by four times their width ; antennz about one-third as long as the body, joints very feebly obconical, not narrower toward apex, about two-thirds longer than wide, the third and fourth equal. Prothorax about two-thirds wider than long ; sides strongly rounded, convergent and straighter toward base; apex truncate, nearly three-fourths as wide as the base, the latter transverse, the sinuations broad and very feeble; basal angles slightly obtuse but not rounded; disk strongly convex throughout, narrowly impressed in the middle toward base, extremely minutely and sparsely punctate, the basal fovee almost obsolete. Elytra three times as long as the prothorax and not wider, parallel, rather gradually and acutely rounded behind; disk very finely, sparsely punctate, without trace of series and without impressed lines, except vaguely, the two sutural being quite distinct by obliquely reflected light. Under surface throughout finely, very sparsely punctate. Legs slender, sparsely pubescent ; basal joint of the hind tarsi nearly as long as the remainder. Length 3.8-4.5 mm.; width 1.4-1.6 mm. 128 Coleopterological Notices, ITT. New York; Georgia; Florida. The sexual differences appear to be exceedingly feeble. This species is one of the smallest of the genus, and may readily be known by its extremely sparse minute punctuation, almost in- visible pubescence and absence of elytral series. M. fraterma Say.—Journ. Ac. Phil., III, 1823, p. 270; laticollis Lec. : Pr. Am. Phil. Soc., XVII, p. 617.—Oblong-elongate, subparallel, moderately convex, piceous-black, the under surface, legs and antenne slightly paler, piceous to rufo-ferruginous, each elytron with a large pale oblique spot from near the suture to the humerus, polished ; pubescence fine, short, not very dense and not conspicuous. Head feebly convex, rather finely, sparsely and somewhat unevenly punctate; eyes moderate, separated by but slightly more than twice their width; antenne nearly one-half as long as the body, moder- ately slender, the joints very feebly obconical, not distinctly narrower toward apex, the intermediate about three-fourths longer than wide, third fully as long as, or perhaps a little longer than, the fourth. Prothorax about three- fourths wider than long, the apex feebly arcuate, scarcely two-thirds as wide as the base, the latter transverse, the sinuations almost obsolete, the angles slightly obtuse, not rounded ; sides broadly, very distinctly arcuate through- out ; disk widest near basal third, somewhat finely, sparsely punctate, broadly impressed in the middle toward base, the basal foveze very broadly impressed and indefinite. Llytra.a little more than three times as long as the prothorax, scarcely visibly wider, rather gradually and acutely rounded behind; disk somewhat strongly, sparsely and unevenly punctate, devoid of series and without impressed lines, except more or less vaguely near the suture. Under surface very sparsely punctate. Length 3.9-6.0 mm.; width 1.4—2.3 mm. Pennsylvania; New York; Canada. The description refers to the male which appears to be much smaller and more slender than the female. In the latter sex the antenne are relatively shorter and the prothorax is slightly more transverse. Fraterna is more northern in its distribution than haldemant. I think that the unique specimen described by LeConte as lati- collis is simply an extreme form of the female of this species. The punctuation, especially of the head, is very uneven and quite vari- able in fraterna, and there seemingly exists a most perplexing plasticity in the form of the prothorax in some species—see remarks under fenuzs. In fact I bave before me a normally punctate speci- men of fraterna, in which the prothorax is somewhat dilated. and rather wider than the elytra, just as in the type of latzcollis. Although Melsheimer states that his ruficornis is distinct from fraterna, I am inclined to think that it is nothing more than an Coleopterological Notices, ITT. 129 immature specimen of this species, or at most a slight variety. According to the description it is ‘brown, pubescent, densely punc- tulate; antennz, labrum, palpi and feet testaceous; thorax at base each side of middle with a small and profound impression; dorsal impression obsolete; scutel brown; elytra densely rugulose; toward the suture with faint traces of the interstices; base broadly and in- determinately testaceous; beneath pale brown; femora rather pale testaceous.”’ The punctuation of fraterna is sometimes strongly rugulose, and, in regard to color, I have several specimens before me of foveata, the normal color of which is black with pale humeri, which have the elytra entirely pale from immaturity. M. megalops n. sp.—Oblong-elongate, subparallel, rather depressed, polished, black, the under surface piceous-black ; legs and antenne slightly paler, piceous-brown, the latter paler toward base; pubescence moderate in length, dark, recumbent, sparse and inconspicuous. Head feebly, longitudi- nally convex, rather finely, densely punctate anteriorly, very sparsely and unevenly so between the eyes, the latter extremely large and convex, separated by about three-fourths their own width ; antenne robust, a little more than one-third as long as the body, apparently very feebly attenuate toward apex, the intermediate joints scarcely one-half longer than wide, third and fourth equal. Prothorax nearly four-fifths wider than long, the apex scarcely two- thirds as wide as the base, feebly arcuate; base transverse, the sinuations very feeble, the angles slightly obtuse but not rounded; sides broadly rounded and convergent anteriorly, less arcuate toward base; disk widest at about basal third, convex throughout, almost completely unimpressed, very finely and sparsely punctate. /ytra distinctly more than three times as long as the prothorax and equal in width to the disk of the latter, parallel, rather abruptly and obtusely rounded behind; disk somewhat strongly, asperately, but rather sparsely punctate, without series but with the impressed lines dis- tinct except toward the sides, with a vague appearance of punctured series near the suture. Under surface finely, sparsely punctate throughout. Legs normal. Length 4.0 mm.; width 1.5 mm. Indiana? Cab. Levette. The single specimen is a male, and is remarkable in having eyes which are not only exceptionally large for the present genus, but in proportion to the size of the body, fully as large as in any other species of the family which I have seen. The elytra have, each, a large oblique basal spot of a reddish-yellow tint, as usual in this section of the genus. At first sight it resembles Hymenorus — humeralis, but the tarsi are perfectly simple, the eyes large, the pubescence dark, more recumbent and sparser, and the elytra are devoid of distinct punctured series. 130 Coleopterological Notices, ITT. M. basillaris Say.—Journ. Ac. Phil., III, 1823, p. 269. From the language employed by Say, it would seem as if this species might be easily recognized if polaron but I have seen no specimens. Say’s description states that the head is punctured, the thorax hardly punctured, with three indefinite indented lines on the poste- rior margin; posterior angles rectangular; elytra with punctured strie and interstitial lines; basal oval spot oblique; body dark chestnut-brown, beneath paler. Length one-fifth of an inch. Inhabits Pennsylvania. M. tenuis Lec.—N. Spec. Col., 1866, p. 140.—Elongate, moderately con- vex, subparallel, polished, piceous-black above and beneath ; legs pale flavate ; antennz piceous, paler toward base; elytra each with a very small suffused reddish spot just behind the humerus, which is sometimes wanting; pubes- cence fine, rather short, very sparse and inconspicuous. Head evenly, feebly convex, rather coarsely but sparsely punctate; eyes rather large and convex, separated by nearly two-thirds more than their width; antenne rather slen- der, not attenuate toward apex, a little less than one-half as long as the body, the intermediate joints fully twice as long as wide, third distinctly longer than the fourth. Prothorax about one-fourth wider than the head, two-fifths wider than long, the apex three-fourths as wide as the base, subtruncate 5 base transverse, very feebly arcuate in the middle; sides parallel and nearly straight from the base almost to apical two-fifths where they are broadly sub- angulate and rounded ; basal angles right, not at all rounded, not depressed ; disk feebly convex, more strongly so laterally toward apex, rather strongly but very sparsely punctate throughout, not impressed in the middle, the basal- fovee rather suffused but large and distinct. Llytra fully four times as long as the prothorax, and, throughout, nearly two-thirds wider, somewhat strongly narrowed behind in apical third; humeri rather broadly exposed, rounded ; disk with somewhat vague, feebly impressed series of fine, feeble, not very approximate punctures, the intervals having sparsely placed punctures which are almost as large as those of the striw, arranged in rather uneven single series. Under surface very finely, sparsely punctured throughout. Legs as in gracilis. Length 5.2-6.0 mm.; width 1.7-1.9 mm. New York; Ohio; Michigan. This distinct species may be readily known by its slender form, small head and prothorax, flavate legs and by its feebly marked elytral series. In general form it approaches procera, but that species has the prosternal process laminate. The specimen from New York has the prothorax trapezoidal, with the sides nearly straight and convergent from base to apex, the basal angles being slightly acute and the elytra relatively a ee ae ee eee ee eee eee a Coleopterological Notices, ILI. 131 little longer. As it is precisely similar to the normal forms in every other particular, I am inclined to regard it as an accidental variation. M. foweata Lec.—N. Spec. Col., 1866, p. 140.—Elongate, suboval, polished, moderately convex, piceous-black throughout, the legs and antennze flavate; elytra sometimes testaceous throughout, but normally black, with a small suffused subhumeral reddish spot; pubescence short, fine, extremely sparse. dark and inconspicuous. Head suborbicular, feebly, evenly convex, finely, sparsely punctate; eyes very small, not prominent, separated by nearly four times their width; antenne somewhat robust, not attenuate, scarcely two-fifths as long as the body, the intermediate joints strongly obconical, about one-half longer than wide, third quite distinctly longer than the fourth. Prothorax nearly one-half wider than the head, two-fifths wider than long, the apex subtruncate, three-fourths as wide as the base, the latter transverse and straight; sides strongly rounded at the middle, thence strongly conver- gent and feebly arcuate to the apex, and distinctly convergent and broadly sinuate to the basal angles, which are right and not at all rounded; disk strongly declivous toward the apical angles, finely but deeply, distinctly, sparsely punctate, narrowly, feebly impressed in the middle toward base; basal fovee rounded, moderate in size, very deep and distinct. lytra a little more than three times as long as the prothorax ; sides feebly arcuate; disk slightly wider behind the middle, at base a little wider than the pronotal disk, the humeri distinctly exposed, narrowly rounded; surface with feebly impressed series of rather coarse, moderately close punctures, the intervals each with a single series of very fine punctures. Abdomen very finely sparsely punctate; anterior portions more coarsely but sparsely so. Legs moderately slender, normal. Length 5.0-5.8 mm.; width 1.8-2.2 mm. Michigan; Iowa; Indiana. The sinuation of the sides of the prothorax is not always so apparent as in the type, these often being convergent and straight from near the middle to the base; it is more apparent in the large specimens, and may therefore be more especially a female charac- teristic. Otherwise there does not appear to be any noteworthy sexual difference. M. gilvipes n. sp.—Moderately robust and convex, suboval, polished, black ; under surface dark rufo-testaceous, the legs flavate; antenne piceous- black, paler toward base; each elytron with a large, clearly limited, oblique basal spot, extending to internal third of the width ; pubescence rather long and erect, but dark, sparse and inconspicuous. Head feebly convex, rather coarsely but sparsely and feebly punctate; eyes rather small, separated by scarcely three times their width ; antennz robust, the joints strongly obconi- cal, generally about one-half longer than wide, the third much longer than the fourth. Prothorax about one-third wider than long, the apex feebly arcuate, 132 Coleopterological Notices, ILI. three-fourths as wide as the base, the latter straight; sides broadly rounded, convergent and straight, or very feebly sinuate, from behind the middle to the base, the angles rather distinctly obtuse but not at all rounded; disk distinctly impressed in the middle toward base, rather coarsely, deeply and sparsely punctate, the basal fovee small, deep and conspicuous. Elytra a little less than three times as long as the prothorax, and, behind the middle, about two-fifths wider; base slightly wider than the disk of the latter, the humeri distinctly exposed; sides feebly arcuate behind, gradually and acutely rounded at apex ; disk punctured and impressed nearly as in foveata. Under surface very sparsely punctate, the abdomen minutely so. Legs rather short. Length 4.7 mm.; width 1.8 mm. . North Carolina. The single specimen serving as the basis of the above description, represents a species closely allied to foveata, but distinguishable by its distinctly shorter broader elytra, smaller size, longer and more erect pubescence, slightly larger and more approximate eyes, blackish antennse, much larger, more abruptly defined basal spots of the elytra, and slightly coarser punctuation. M. migerrima n. sp.—Oblong, parallel, moderately convex, highly polished, intense black throughout above; legs and under surface piceous- black, the tarsi paler; antenne pale brownish-testaceous throughout ; pubes- cence fine, short, dark, very sparse and inconspicuous. Head feebly, evenly convex, finely, very sparsely punctate; eyes rather small, separated by nearly three times their width; antenne rather robust, barely more than one-third as long as the body, scarcely attenuate toward apex, the intermediate joints obconical, with the sides rounded, not quite one-half longer than wide, third and fourth equal. Prothorax four-fifths wider than long, the apex broadly arcuate, two-thirds as wide as the base, the latter transverse, with a small feeble sinuations at each side of the middle; sides broadly arcuate through- out, more convergent toward apex; basal angles obtuse and very narrowly rounded; disk extremely minutely, sparsely punctate, barely perceptibly impressed in the middle toward base, the basal fovee broadly impressed and indefinite, but each apparently having a very small foveiform puncture in the middle. Hlytra a little more than three times as long as the prothorax, and, at the middle, scarcely visibly wider than the disk of the latter, gradually, not very acutely rounded at apex; sides parallel and feebly arcuate; humeri not exposed; disk finely, sparsely punctate, without series, the impressed lines very feeble, but visible by obliquely reflected light, almost throughout the width, the punctures aggregated in wide longitudinal lines, with more sparsely punctate intervals. Under surface finely, sparsely punctate. Legs normal, the posterior tarsi much shorter than the tibia. Length 5.3mm.; width 2.0 mm. New York. The single specimen representing this species is related to fra- terna, but is immediately distinguishable by the complete absence Coleopterological Notices, ITI. 133 of basal pale spots on the elytra, by the finer sparser punctuation, smaller and more distant eyes and dark legs. M. gracilis Lec.—Proc. Am. Phil. Soc., XVII, p. 615.—Elongate, moder- ately convex, subparallel, polished, black throughout; legs black, the tarsi slightly paler; antenne dark rufo-ferruginous ; pubescence fine, moderate in length, rather sparse and inconspicuous. Head with a feeble impression at the middle of the interocular surface, rather coarsely but sparsely punctate ; eyes large and convex, separated by two-fifths more than their own width ; antenne nearly two-fifths as long as the body, robust, feebly attenuate toward apex, the intermediate joints fully three-fourths longer than wide, feebly obconical, third and fourth equal in length. Prothorax about one-third wider than the head, nearly one-half wider than long, the apex two-thirds as wide as the base, subtruncate; base transverse, the sinuations almost obsolete ; sides subangulate at apical third, thence very feebly divergent and straight to the basal angles, more strongly convergent and nearly straight to the apex ; basal angles right, not rounded ; disk very feebly convex, except toward the sides anteriorly where it becomes strongly declivous, rather finely but deeply, distinctly, very sparsely punctate, the punctures becoming coarse and rather dense laterally and anteriorly, broadly, strongly impressed along the middle toward base, the basal fovee almost obsolete. Elytra about four times as long as the prothorax, and, throughout, about three-fourths wider, parallel, the humeri exposed and slightly rounded; apex rather gradually and acutely rounded; disk with even series of small deep close-set punctures, the rows scarcely visibly impressed, the intervals flat, each with a rather uneven single series of smaller punctures. Under surface very finely, sparsely punctate throughout, except the metasternum which is rather more coarsely and densely so, the latter as usual totally impunctate posteriorly. Legs slender, the basal joint of the hind tarsi fully as long as the remainder. Length 5.5 mm.; width 2.0 mm. Michigan (Marquette). Cab. LeConte. The unique type has the partly concealed apical pseudosegment narrow and strongly rounded at apex. I cannot determine its sex, but it is probably a male. This species somewhat resembles tenuzs, but may be aici diened by its more robust form, larger eyes, more distinct elytral series, absence of humeral pale spot and several other characters. M. rufipes Lec.—Bost. Journ., I, p. 170.—Oblong, parallel, rather strongly convex, dark piceous-brown, the under surface rufo-testaceous ; legs flavate ; antenne brown, paler toward base; integuments shining ; pubescence rather coarse, moderate in length, fulvous, dense and conspicuous. Head broad, inserted in the prothorax nearly to the eyes, feebly, evenly convex, coarsely, rather densely punctate, the punctures distinctly separated; eyes rather small, separated by about two and one-half times their width ; antenne 134 Coleopterological Notices, ITI. slender, not attenuate, nearly one-half as long as the body, the intermediate joints fully twice as long as wide, third distinctly shorter than the fourth. Prothorax about two-thirds wider than long; sides nearly parallel, feebly arcuate, rounded anteriorly, the apex feebly arcuate and but slightly narrower than the base, the latter transverse, the sinuations almost obsolete; basal angles slightly obtuse, not at all rounded; disk transversely convex from base to apex, not impressed, coarsely, extremely densely, deeply punctate through- out, the punctures nearly in mutual contact; basal fovee obsolete. Scutellum rather short and broad. lytra about three times as long as the prothorax, ana, throughout, about one-fifth wider, parallel, obtusely rounded behind ; disk cylindrically convex, polished, with almost unimpressed series of small but deep, close-set punctures, the intervals extremely minutely, sparsely punctate. Abdomen very minutely, sparsely punctate, the metasternum more coarsely but sparsely so, the prosternum and propleure not very coarsely, but extremely densely so. Legs rather short and robust, but otherwise normal. Length 4.5 mm.; width 1.8 mm. New York. Cab. LeConte. The unique type represents a very isolated species, not remotely approaching any other, although in general somewhat recalling marginata of the next group. I do not know the sex of the speci- men described, but it is apparently the female. ¥X M. marginata Lec.—Proc. Am. Phil. Soc., XVII, p. 618.—Oblong- elongate, subparallel, moderately convex, black throughout; antenne and legs concolorous; elytra with a rather distinctly limited red spot at the humeri, polished, the pubescence short, fine, moderately dense but not con- spicuous. Head feebly convex, coarsely, deeply, rather densely punctate, the punctures separated by nearly their own diameters; eyes small, separated by about three times their own width; antenne short and robust, a little more than one-third as long as the body, joints after the third strongly obconical, the latter cylindrical and fully as long as the fourth, intermediate joints nearly one-half longer than wide, toward apex gradually attenuated. Prothorax one- half wider than long; sides nearly parallel, rather feebly, evenly arcuate, rounded at apex, the latter four-fifths as wide as the base, truncate; base transverse, the angles very slightly obtuse but not rounded; disk narrowly, strongly explanate along the sides, coarsely, deeply punctate, the punctures separated by from once to twice their own widths, but densely aggregated in a large irregular spot in the middle at each side; basal fovee large and shallow but distinct. lytra about three and one-half times as long as the prothorax, and, near the middle, about one-third wider, at base just visibly wider than the base of the prothorax; humeri right, narrowly rounded; apex abruptly and obtusely rounded; disk with very feebly impressed even rows of small deep close-set punctures, the series becoming deeper and the punctures larger toward the suture; intervals scarcely convex, finely, sparsely and unevenly Coleopterological Notices, IIT. 135 punctate. Abdomen very finely, sparsely punctate. Legs slender; tibiw rather densely clothed with short coarse fulvous hairs ; posterior tarsi scarcely three- fourths as long as the tibie, with the basal joint very much shorter than the remainder. Length 5.0 mm.; width 1.9 mm. Michigan (Marquette). Cab. LeConte. The unique type is a female, and the species is quite isolated as far as known, the very coarse punctuation reminding us only of rufipes. M. binotata Say.—Long’s Expd., II, 1824, p. 285.—Oblong-elongate, parallel, moderately convex; body throughout, legs and antenne black ; tarsi paler; each elytron with a large rounded humeral pale reddish spot ; surface polished ; pubescence rather long, semi-erect, dark, not very dense, moderately conspicuous. Head feebly convex, coarsely, somewhat unevenly punctate, the punctures generally separated by their own diameters or more; eyes moderate, rather convex, separated by twice their width ; antennz a little less than one- third as long as the body, rather robust, feebly attenuate toward apex, the intermediate joints distinctly obconical, about one-half longer than wide, third searcely longer than the fourth. Prothorax three-fourths wider than long, the apex subtruncate, two-thirds as wide as the base, the latter transverse, the narrow sinuation at each side of the middle feeble; sides broadly rounded anteriorly, distinctly convergent and nearly straight from behind the middle to the basal angles, which are obtuse but not rounded; disk broadly, very indefinitely impressed along the middle, rather coarsely, deeply and somewhat sparsely punctate, the basal fovee rounded, feebly impressed. lytra rather more than four times as long as the prothorax, and, throughout, equal in width to the disk of the latter, parallel, the sides straight, gradually, rather ‘acutely rounded behind, the two bases equal in width; disk with scarcely impressed series of small moderately close-set punctures, which almost dis- appear completely toward apex, the intervals finely, sparsely and confusedly punctate. Abdomen and metasternum very finely, sparsely punctate, the pro- sternum and propleure more coarsely and much more densely so. Legs rather short, slender, basal joint of the hind tarsi as long as the remainder. Length 6.6—7.5 mm.; width 2.5-2.6 mm. Michigan (Marquette); New York. The anterior coxal cavities are by no means confluent as stated by LeConte (N. Spec. Col., 1866, p. 138, foot-note), but the thin lamina separating them is almost completely hidden below and between the unusually large and prominent coxe. This lamina gradually becomes broader behind, and widely separates the side- pieces of the prosternum at the posterior margin; it is on the same level as the latter throughout its length. This is a large and conspicuous species, readily known by its 136 Coleopterological Notices, ITI. oblong parallel form and coloration. The two or three basal joints of the antenne and the palpi, are dark rufo-testaceous. M. longula Lec.—Proc. Am. Phil. Soc., XVII, p. 618.—Elongate, sub- parallel, rather strongly, convex, flattened toward the middle, polished, black throughout; legs and antenne concolorous ; elytra each with a small rounded rufo-testaceous spot at the humerus ; pubescence fine but rather long, sparse but distinct. Head feebly convex, rather coarsely but not very densely punc- tate; eyes large, separated by but slightly more than their own width ; antenne robust, about two-fifths as long as the body, the joints generally feebly obconical and one-half longer than wide, third and fourth subequal. Prothorax two-thirds wider than long; apex subtruncate, two-thirds as wide as the base, the latter transverse; sides broadly rounded and convergent anteriorly, becoming parallel and nearly straight toward base, the basal angles right, not distinctly rounded ; disk strongly declivous anteriorly and laterally, elsewhere feebly convex, rather coarsely, sparsely, but roughly punctured, feebly impressed in the middle toward base, the basal fovee shallow but dis- tinct. lytra between four and five times as long as the prothorax, and, throughout, about two-fifths wider, the humeri narrowly exposed; apex rather abruptly and obtusely rounded; sides parallel and nearly straight ; disk with feebly impressed series of small inconspicuous punctures, the striz not distinct except toward the suture; intervals throughout with very fine punctures, arranged in more or less even rows. Under surface sparsely finely punctate. Legs rather long, normal, the hind tarsi but slightly shorter than the tibie, with the basal joint nearly as long as the remainder. Length 5.5 mm.; width 1.9 mm. Michigan (Detroit). Cab. LeConte. The prothorax in general outline is similar to the prevailing type in Hymenorus. The anterior coxe are large, subcontiguous, conoi- dal and prominent, the cavities separated by a very narrow lamina, apparently horizontal and almost completely concealed by the coxe. This species is quite isolated, although bearing a remote general resemblance to several others such as tenuis and procera. It is represented, as far as known to me, only by the original unique type, taken by Mr. Schwarz. M. bicolor Coup.—The Canad. Nat., 1865, p. 62.— Oblong-elongate, rather convex, highly polished, intense black above; under surface, legs and antenne pale rufo-testaceous, the propleure, epipleure, metasternal episterna and last two ventral segments blackish ; pubescence short, very sparse, dark and inconspicuous. Head feebly, evenly convex, finely, very sparsely punc- tate; eyes moderate, rather convex, separated by twice their own width ; antenne rather slender, nearly two-fifths as long as the body, the interme- diate joints feebly obconical, more than twice as long as wide, third rather Coleopterological Notices, ITT. 137 longer than the fourth. Prothorax two-thirds wider than long, the apex trun- cate, three-fourths as wide as the base, the sinuations of the latter rather dis- tinct, the basal angles extending posteriorly slightly beyond the median parts, right, not at all rounded, not prominent; sides broadly rounded anteriorly, feebly convergent and nearly straight thence to the base; disk widest distinctly before the middle, minutely, very sparsely punctate, the punctures slightly coarser and denser toward the sides, narrowly, feebly impressed in the middle toward base, the basal fovez very small, rounded, deep and almost perforate. Elytra four times as long as the prothorax, and, behind the middle, one-half wider, at the humeri slightly wider than the pronotal disk, the humeri very Slightly exposed; apex rather abruptly and obtusely rounded; sides broadly arcuate behind ; disk with very deeply impressed series of moderate, rather deep punctures, the intervals convex, minutely, sparsely and confusedly punctate. Under surface very finely, sparsely punctate, the metasternum much more finely and sparsely so than its episterna. Legs moderate in length, the femora rather robust, the first joint of the hind tarsi distinctly shorter than the remainder. Length 8.5 mm.; width 3.4 mm. Canada. Cab. LeConte. This is a remarkably distinct species, immediately recognizable by the smooth, highly polished, minutely, sparsely punctate surface and deeply impressed, almost sulciform elytral striz. The maxil- lary palpi do not differ much from those of lugubris and analis. The narrow lamina separating the anterior coxee is convex longi- tudinally, but comes far from attaining the level of the coxal apices. M. amalis Lec.—Proc. Am. Phil. Soc., XVII, p. 618.—Elongate-oval, moderately convex, dark piceous-brown ; under surface and antenne paler, brownish-testaceous, the last two abdominal segments darker, piceous ; legs paler, more flavate; polished; pubescence fine, rather sparse, dark and in- conspicuous. Head feebly, evenly convex, rather coarsely, densely, deeply punctate; eyes moderate, separated by rather distinctly more than twice their width ; antenne two-fifths as long as the body, nearly as in lugubris, but with the third joint very slightly shorter than the fourth. Prothorax two-thirds wider than long, the apex truncate, three-fourths as wide as the base, the latter transverse; sides broadly, almost evenly rounded throughout; basal angles obtuse, very narrowly rounded; disk somewhat coarsely, moderately closely punctate, the punctures finer, feebler and more distant than those of the head,.not explanate at the sides, not appreciably impressed in the middle, the basal fovez almost obsolete. lytra nearly four times as long as the pro- thorax, and, behind the middle, nearly one-half wider, at the humeri very Slightly wider than the disk of the pronotum; humeri not exposed; apex rather abruptly and obtusely rounded; sides broadly arcuate behind; disk with feebly impressed series of small, rather inconspicuous punctures, the intervals feebly convex, finely, confusedly and rather sparsely punctate, the Awnats N. Y. Acap. Scr., VI, Nov. 1891.—10 138 Coleopterological Notices, ITT. series rather uneven in their course, the intervals varying in width. Under surface, legs and coxe nearly as in lugubris. Length 6.8-7.6 mm.; width 2.8-3.0 mm. New Jersey; Michigan. | This species is closely allied to /ugubris, but may be distinguished by its slightly smaller eyes, the unexplanate sides of the prothorax, and more feebly impressed, less conspicuously punctured and more uneven elytral striz, as well as by its rather larger size and more robust form. One specimen before me, from New York, is black above and piceous-black throughout beneath, and, as I notice a few other slight differences, it may possibly indicate a variety. The maxillary palpi are rather shorter and thicker than in lugu- bris, the recti-triangular fourth joint being but slightly longer than wide. M. lugubris Lec.—Proc. Am. Phil. Soc., XVII, p. 618.—Elongate-oval, rather convex, piceous-black; under surface throughout paler, brown; legs and antenne still paler, more flavate; polished, the pubescence very fine, semi-erect, short, moderately dense but nearly of the same color as the body and not conspicuous. ead feebly convex, coarsely, deeply, rather densely punctate; eyes moderate, separated by about twice their width; antenne moderately robust, scarcely two-fifths as long as the body, feebly attenuate toward apex, joints obconical, in the male nearly twice as long as wide, a little shorter in the female, third and fourth equal. Prothorax two-thirds wider than long; apex truncate or very feebly sinuate, two-thirds as wide as the base, the latter transverse and straight; sides broadly, almost evenly rounded throughout, more convergent toward apex; basal angles obtuse and very narrowly rounded; disk distinctly explanate from just before the middle, more broadly around the basal angles, and thence gradually more narrowly along the base, rather coarsely, deeply, somewhat unevenly and densely punc- tate, the punctures separated by about their own widths; broadly, feebly impressed in the middle toward base, the basal foveee extremely feeble and indefinite. lytra nearly four times as long as the prothorax, and, behind the middle, two-fifths wider, rather abruptly and obtusely rounded behind, at the humeri just visibly wider than the disk of the pronotum, the humeri not exposed; sides broadly arcuate, especially behind; disk with rather deeply impressed regular series of rather small but deep close-set punctures, the intervals convex, finely, confusedly and somewhat closely punctate. Under surface finely, sparsely punctate, a little more coarsely so anteriorly. Legs slender, normal. Length 6.4-7.0 mm.; width 2.3-2.9 mm. New York; Kansas. The anterior coxe are large, very prominent and approximate, globulo-conoidal, the cavities separated by a thin lamina which is Coleopterological Notices, ILI. 139 apparently on the same level as the prosternum. The fourth joint of the maxillary palpi is in the form of a right-angled triangle, thick, convex, twice as wide, and more than twice as long as the third. The abdomen is a little more densely and finely punctured toward apex. KKK M. longipennis n. sp.—Oblong-elongate, rather depressed, parallel, polished, rather pale piceous-brown throughout; legs more flavate; pubes- cence fine, short, not dense, pale but inconspicuous. Head rather large, transversely flat between the eyes, which are very large and prominent, sepa- rated by about their own width; punctures rather dense, somewhat coarse and confused; antenne nearly two-fifths as long as the body, moderately robust, feebly, gradually attenuate, third joint long, distinctly longer than the fourth, joints five to eleven equal in length and much shorter than the fourth. Prothorax scarcely one-half wider than the head, three-fourths wider than long; apex truncate, two-thirds as wide as the base, the latter trans- verse, the lateral sinuations broad but distinct; sides broadly rounded and convergent anteriorly, parallel and nearly straight in basal half; basal angles right, very narrowly rounded; disk rather abruptly, narrowly explanate at the sides anteriorly, gradually deplanate toward the basal angles, broadly, feebly impressed along the middle, not very densely, rather coarsely and roughly punctate; basal fovee broadly, teebly impressed and indefinite. Elytra nearly five times as long as the prothorax, and, throughout, about one- fourth wider, parallel, the sides straight; humeri rather abruptly rounded and slightly exposed; apex somewhat abruptly obtusely rounded ; disk finely, rather sparsely punctate, the impressed lines rather distinct throughout the width, the punctures having a generally closely seriate arrangement, but without any definite series of larger punctures. Under surface very sparsely, finely punctate. Legs normal, the basal joint of the hind tarsi nearly as long as the remainder. Length 6.8 mm.; width 2.2 mm. California (San Bernardino). The anterior cox are large but not very prominent, and are separated throughout their length and depth by a thin prosternal lamina, the exposed surface of which is strongly, lonyitudinally con- vex. The species is not closely allied to any other before me, and may be known by its parallel depressed form, large eyes and pecu- liar antennal structure. M. pacifica n. sp.—Oblong, rather feebly convex, subparallel, piceous- black, the under surface but slightly paler; legs and antenne dark brown; lustre shining, the anterior parts just visibly alutaceous; pubescence very short, sparse, recumbent and inconspicuous. Head rather convex, finely, rather sparsely punctate, the epistoma abruptly deplanate ; eyes small, sepa- 140 _ Coleopterological Notices, ITT. rated by nearly three times their width ; antenne rather slender, but slightly more than one-third as long as the body, joints moderately obconical, about three-fourths longer than wide, the third and fourth equal in length. Protho- rax rather large, two-thirds wider than long, the apex subtruncate, nearly as wide as the base, the latter transverse, the sinuations broad and distinct ; sides somewhat strongly arcuate, the apical angles broadly rounded, basal slightly obtuse but not rounded; disk a little wider before the middle than at base, broadly, feebly but distinctly impressed throughout along the middle, finely, but strongly, rather sparsely punctate, the basal fovee large and feebly impressed. lytra about twice as long as wide, not quite four times as long as the prothorax, and, in the middle, very slightly wider than the latter, rather obtusely parabolic at apex; sides parallel and feebly arcuate, the two bases equal, humeri not exposed; disk with feebly impressed lines, more distinct toward the suture, the lines minutely, feebly punctate, the intervals finely, confusedly, rather sparsely punctate, the punctures rather larger and more distinct than those of the strie#. Abdomen sparsely, extremely minutely and scarcely perceptibly punctate. Legs slender, the basal joint of the hind tarsi about as long as the remainder. Length 7.0 mm.; width 2.5 mm. California. The sex of the unique type is not apparent and cannot be deter- mined without dissection. This species is not closely allied. to any other and may be readily distinguished by the characters given in the table. M. procera n. sp.—Elongate, subdepressed, shining, piceous-black throughout, the tarsi slightly paler; pubescence fine, short, dark, moderately dense, not conspicuous. Head small, feebly convex, more or léss finely and sparsely punctate; eyes moderate, rather convex, separated by a little less than twice their width; antenne very slender, filiform, nearly one-half as long as the body, third joint fully three times as long as the second and dis- tinctly longer than the fourth. Prothorax small, but slightly wider. than the head, about one-half wider than long ; apex subtruncate, three-fourths as wide as the base, the latter broadly, just visibly arcuate ; sides almost straight and parallel in basal two-thirds, then broadly rounded to the apex; basal angles right, not rounded ; disk feebly convex, more or less finely and sparsely, but very distinctly punctate, broadly, feebly impressed in the middle near the basal margin, broadly explanate toward the basal angles, the basal foveze nearly obsolete. lytra between five and six times as long as the prothorax, and, behind the middle, about twice as wide; sides parallel, feebly arcuate behind; apex rather abruptly ogival; humeri broadly rounded and widely exposed ; disk finely, somewhat densely punctate, the fine, feebly impressed lines distinct, but without definite punctured series, the punctures generally however with a closely subseriate arrangement. Under surface polished, very finely, sparsely punctate. Legs long, rather slender; posterior tarsi equal in length to the tibize, the basal joint scarcely longer than the next two com- bined. Length 5.5-6.0 mm.; 1.8-2.0 mm. Ces Coleopterological Notices, ITI. 141 Idaho; California (Los Angeles). The last joint of the maxillary palpi is moderately robust, scarcely twice as long as wide, the two sides making an angle of about sixty degrees at base, the inner about one-half as long as the outer and three-fourths as long as the apex. The anterior coxe and extremely thin prosternal lamina are nearly as in longipennis, from which the present species can at once be known by its more slender depressed form, small head and prothorax and long posterior tarsi, with un- usually short basal joint. The specimen from California has the head, and to some extent also the prothorax, much more densely punctate than that from Idaho, and the head is a little larger in the former. These differ- ences are probably in great part sexual, and I think generally but little reliance is to be placed upon degree of punctuation in the present genus. The genera with lobed tarsi are much more con- stant in specific characters. M. pubipennis Lec.—Proc. Am. Phil. Soc., XVII, p. 617.—Parallel, moderately convex, polished, dark brown throughout; pubescence dark, fine, semi-erect, rather dense. Head feebly convex, finely, sparsely punctate; eyes small, lateral, transverse, above separated by nearly five times their width ; antenne two-fifths as long as the body, rather robust, joints obconical, gener- ally one-half longer than wide, the third a little longer than the fourth. Pro- thorax but slightly more than one-third wider than the head, one-half wider than long, the apex truncate, very nearly as wide as the base, the latter transverse; sides feebly arcuate throughout, a little more strongly so ante- riorly, feebly convergent thence to the basal angles, which are obtuse but not rounded; disk widest a little before the middle, somewhat finely and sparsely but very distinctly punctate, broadly, feebly impressed in the middle toward base, also feebly impressed or subexplanate near the basal angles ; basal foveze not noticeable. lytra fully three times as long as the prothorax, and, at the middle, just visibly wider; humeri but very slightly exposed; apex rather gradually, evenly ogival; sides parallel, very feebly arcuate; disk with very feebly impressed series of fine, rather approximate punctures, which become obsolete toward the sides and apex; intervals throughout very finely, un- evenly and rather densely punctate. Under surface finely, sparsely punctate. Legs rather short, the femora somewhat stout; hind tarsi much shorter than the tibiz, with the basal joint much shorter than the remainder. Length 4.7 mm.; width 1.8 mm. California (southern). The anterior coxee are moderate in size, not very prominent, and separated throughout their depth by a narrow, longitudinally con- vex lamina. The fourth joint of the maxillary palpi is more than 142 Coleopterological Notices, ITI. twice as long, and nearly twice as wide as the third, the sides mak- ing an angle at the base of about eighty degrees, the inner scarcely one-half as long as the outer, and the outer but slightly longer than the apex, the angles not rounded and the bounding lines nearly straight. This species may be easily known by its dark brown color, rather long dense and dark brown pubescence and small eyes. M. nevadensis n. sp.—Oblong, broad, rather depressed, polished, dark piceous-brown above, the under surface, legs and antenne paler and more flavate; pubescence very short and sparse, pale but inconspicuous. Head feebly convex, finely, sparsely punctate; eyes small, separated by scarcely four times their width; antenne robust, scarcely two-fifths as long as the body, the joints obconical and nearly three-fourths longer than wide, the third not distinctly longer than the fourth. Prothorar three-fourths wider than the head and four-fifths wider than long, the apex truncate or very feebly sinuate, rather distinctly narrower than the base, the latter transverse ; sides broadly rounded ; basal angles obtuse and slightly rounded ; disk some- times broadly feebly impressed along the middle, the impression evanescent, very finely, sparsely punctate, the punctures becoming denser toward the sides ; basal fovee large, feeble and indefinite. lytra three times as long as the prothorax, at base rather distinctly wider than the disk of the latter, and, at the middle, about one-third wider, rather abruptly and obtusely rounded behind; humeri very narrowly exposed; disk finely, sparsely punctured, with feeble traces of impressed lines toward the suture, but without trace of punctured series. Under surface polished, very finely and sparsely punctate. Legs moderate in length, hind tarsi rather slender, much shorter than the tibie, with the basal joint four times as long as wide and three-fourths as long as the remainder. Length 4.8 mm.; width 2.1 mm. Nevada (Reno). This species belongs to a small croup peculiar to the Pacific coast, including also pubipennis and crassulipes; it is readily distinguish- able from either of these by its much broader form, more transverse prothorax, distinctly larger eyes and complete absence of punctured series. One specimen has two discal fovez on the prothorax, of an adventitious nature, similar to those which appear occasionally throughout the Tenebrionids. The coxe are similar to those of pubipennts, but the palpi are rather shorter and more robust. M. crassulipes nb. sp.—Rather slender, suboval, moderately convex, pale ochreous-flavate throughout, polished ; pubescence rather short and coarse, sparse, pale ochreous-flavate in color. Head feebly convex, finely, sparsely punctate, the eyes small, lateral, transverse, not prominent, sepa- rated above by between four and five times their width ; antenne very robust, Coleopterological Notices, ITI. 143 scarcely two-fifths as long as the body, the joints generally strongly obconical and but slightly longer than wide, the third nearly one-half longer than the fourth. Prothorax nearly two-thirds wider than long, the apex truncate, nearly as wide as the base, the latter transverse; sides broadly rounded anteriorly, straight or feebly sinuate and rather strongly convergent thence to the basal angles, which are obtuse and not rounded; disk much wider slightly before the middle than at base, not noticeably impressed in any part, somewhat coarsely and sparsely punctured, the basal fovez entirely obsolete. Elytra between three and four times as long as the prothorax, and, at the middle, nearly one-half wider, gradually, evenly ogival at apex; humeri narrowly rounded, rather broadly exposed, the width at this point distinctly greater than that of the pronotal disk; sides feebly but distinctly arcuate throughout; disk rather finely, sparsely and confusedly punctate, with feebly impressed lines and series of punctures toward the suture only. Under surface finely, sparsely punctate. Legs short and unusually robust, the hind tarsi much shorter than the tibiz, with the basal joint not more than three times as long as wide, and but little longer than the next two. Length 4.0 mm.; width 1.6 mm. California (Hoopa Valley, Humboldt Co.). Kasily distinguishable from pubipennis by its pale color, smaller, more cordate and unimpressed prothorax, much shorter, more robust antennal joints, pale shorter and coarser pubescence, sparser punc- tuation and shorter more robust legs and tarsi. The unique speci- men is a female and the before described type of pubipennis is also of that sex. ISOMIRA Mauls. Although the species here assigned to Isomira have a community of habitus which decidedly indicates the propriety of associating them together, it is difficult to state any absolutely definitive struc- tural characters. The maxillary palpus varies, in its terminal joint, from the slender form seen in sericea, through the rather broadly tri- angular of pulla, to the form seen in quadristriata. The antenne have the third and fourth joints equal in rather more than half the species, but in*the remainder the former is much the shorter of the two, sometimes approaching the form seen in Cistela and the Euro- pean antennata. ‘The elytra may be almost completely devoid of impressed striz, or may have more or less feebly impressed rows of punctures as in valida, tewana and many of the Central American forms. The only character which satisfactorily distinguishes the genus from Cistela, apart from the very pronounced peculiarity of facies, 144 : Coleopterological Notices, IIT. appears to be the slender filiform antenne, a differential character corresponding with that made use of by Mr. Champion for the separation of Allecula and Hymenorus. Our species are found on foliage of low plants and are moderately abundant. They are easily differentiated as follows :— Elytra without distinct series of punctures. Fourth joint of the maxillary palpi long and slender. Antenne with the third joint distinctly shorter than the fourth, at least in the male. Eyes very large, the front broadly, deeply impressed ;. color pale throughout jsesisaeisneseisaes aedicenavareviee a’ non asiniceeleasiems cealsse casiae eel Cn SES Eyes small or moderate; front not impressed. Color black, the prothorax rufo-ferruginous ; elytral punctuation SPAUSE: 102 sossaceleeoloenidenerees ccsauoacskemenase acme enee eee .. discolor Color piceous- Caee ase hone sped Sie ext dense. tenebrosa Antenne with the third and fourth joints equal or subequal, elongate. Eyes moderate; elytral punctuation and pubescence exceedingly dense ; color pale ochreous-flavate throughout..........cess02 sees sericea Eyes small, not prominent ; jancuiasen of the head aaa pronotum fine, very dense; elytral punctures sparser ; color variable. variabilis Eyes very small, convex and prominent; head and pronotum rather coarsely punctate })size smaller=.... ...e-ose-es ers . luscitiosa Fourth joint much shorter and more ca I with ake outer side dis- tinctly longer than the apex ; punctuation very dense throughout; color piceous-black.. ais anise nsigtdle baleataisl Se Date ele ee Rrattere gh ate sole cet ReE .- pulla Fourth joint onan th: outer side a Thos laneat a dite apex. ‘Elytral punctuation sparse; eyes small, the elytra without impressed lines except the two sutural toward apex. Third and fourth antennal joints equal in both sexes ; prothorax small, much narrower than the elytra..................-..-- Quadristriata Third joint shorter than the fourth; prothorax larger, subequal in Width to theveliytran deus enccoslsseheeceeanneeactccites seetcses -monticola Elytral punctuation dense; eyes ian ge; vette aateaee ee shorter than the fourth ; Rad with fine but distinct ceca lines throughout the width .. sseientleay Guetaednctneche cede Sopeet ene ete chaen . Oblongula Elytra with series, more or less complete ate sometimes geile impressed, of small punctures; maxillary palpi with the terminal joint but slightly shorter and more robust than in sericea; eyes large. Eyes in the male separated by scarcely two-thirds their own width. valida Eyes in the male separated by fully their own width; form more oblong and parallel; elytral series feebly impressed ............+se0000. LOXANA Coleopterological Notices, ITT. 145 I. iowensis n. sp.—Almost evenly elliptical, convex, pale brownish- piceous, the head and prothorax slightly more rufo-ferruginous ; surface shining, the pubescence very short and somewhat sparse. Head very densely and somewhat coarsely punctate, the front broadly, strongly impressed ; eyes very large; antenne slender, filiform, three-fifths as long as the body. fro- thorax four-fifths wider than long; sides feebly convergent from the base, more strongly so and broadly rounded anteriorly ; apex feebly arcuate, two-thirds as wide as the base, the latter transverse and nearly straight; basal angles right; disk punctured like the head, the punctures unusually coarse, deep and distinct, nearly in mutual contact; basal fovex very feeble, transverse, on the posterior convexity and bordering the edge. lytra nearly four times as long as the prothorax, and, at the middle, about one-half wider; disk finely and rather sparsely punctate, the feeble impressed lines quite distinctly visible by reflected light throughout the width, the two sutural strong toward apex. Under surface polished ; abdomen minutely and sparsely punctate ; metasternum rather coarsely and sparsely so, with an unusually large im- punctate area in front of the transverse groove. Legs long and very slender, the hind tarsi nearly as in sericea. Male.—Eyes separated by scarcely one-fourth more than their own width ; third joint of the antenne two-thirds as long as the fourth. Length 5.2 mm.; width 2.2 mm. Iowa. The single specimen before me seems to be slightly immature. The maxillary palpi are nearly as in sericea, but with the inner angle of the terminal joint rather more broadly rounded. This is a rather isolated species, at once distinguishable by its large eyes, strongly impressed front, sparse punctuation and antennal ‘structure. I. discolor n. sp.—Elongate-elliptical, moderately convex, rather strongly shining, piceous-black, the antenne and legs throughout concolorous ; pro- notum and prosternum pale ferruginous ; pubescence fine, very short, sparse. Head feebly convex, closely, rather coarsely punctate, with a small elongate impression in the middle and just behind the epistoma; eyes rather small ; antenne filiform, fully two-thirds as long as the body. Prothorazx about two- thirds wider than long, the apex truncate, two-thirds as wide as the base, the latter truncate, the lateral sinuations almost invisible ; basal angles right, not appreciably rounded ; sides broadly, almost evenly rounded, nearly straight and parallel toward base; disk rather coarsely, very closely punctured, the interspaces shining; basal fovee small, rounded, distinct. Elytra a little more than three times as long as the prothorax, and, in the middle, about one-third wider, moderately narrowly rounded at apex; disk finely but deeply and distinctly, rather sparsely punctate, polished, without trace of impressed striz except the two satural, which are feebly visible toward the apex. Under surface polished, finely and very sparsely punctate except the prosternum, 146 Coleopterological Notices, ITT. which is duller and densely punctured. Legs slender, moderate in length; first joint of the hind tarsi slightly longer than the last two combined. Male.—Third antennal joint about two-thirds as long as the fourth; eyes separated by a little more than twice their own width. Length 3.5-4.0 mm.; width 1.4-1.6 mm. California. This is our smallest species, and is very distinct in its coloration and sparse, coarse punctuation, as well as in antennal structure. The head is distinctly shining, the comparatively wide interspaces of the punctures being polished. The abbreviated third joint of the antenne is probably not altogether a sexual character. I. tenebrosa n. sp.—Elongate-elliptical, strongly convex, extremely finely and densely punctate and pubescent, rather dull and subsericeous, piceous-black ; legs and antennez paler. Head feebly convex, the punctures densely crowded ; eyes rather small; antenne filiform, moderate in length, in the male scarcely more than one-half as long as the body ; joints slightly shorter in the female. Prothorar about two-fifths wider than long, the apex more or less strongly arcuate, and generally continuous in curvature with the sides, the latter parallel and nearly straight toward base; basal angles slightly obtuse and rather distinctly rounded; base transverse, just visibly arcuate in the middle; disk very finely, extremely densely punctured, feebly impressed in the middle toward base, the basal fovee broadly impressed along ‘the mar- gin, feeble. lytra three times as long as the prothorax, and, at the middle, about one-third wider; sides evenly arcuate ; humeri not exposed; apex gradually acutely rounded ; disk punctured and clothed as in sericea, the two subsutural lines alone distinct toward apex. Legs normal. Male.—Kyes separated by rather more than twice their width; third anten- nal joint slightly shorter than the fourth. Length 4.44.8 mm.; width 1.9-2.0 mm. ~ New York (near the city and at Buffalo). This species is quite slender, nearly similar in shape, and in its extremely dense punctuation, to sericea; it differs in its much smaller size, dark piceous-black color, shorter antenne, slightly smaller eyes and still more decidedly in the form of the fourth joint of the maxillary palpi, which is here very slender, twice as long as, and not quite one-half wider than, the third, with the inner side three-fourths as long as the outer and much longer than the apex, the latter much less oblique and narrower than in any other species. I. sericea Say.—Journ. Ac. Phil., III, p. 270.—Hlongate-elliptical, rather strongly, evenly convex, feebly shining, pale ochreous-flavate throughout, the pubescence fine, dense, very short and subsericeous. Head dull, extremely Coleopterological Notices, ITI. 147 densely punctate, feebly, evenly convex ; eyes moderate; antenne long and slender, filiform, nearly two-thirds as long as the body, with the third and fourth joints equal in both sexes. Prothorax one-half wider than long, the sides rounded anteriorly, nearly straight and parallel in basal half; apex about two-thirds as wide as the base, feebly arcuate; base transverse, broadly, feebly arcuate in middle half, the angles right, not rounded; disk dull, punc- tured like the head, the basal fovex shallow but rather distinct. Llytra nearly four times as long as the prothorax, and, in the middle, about one-third wider, between the narrowly rounded humeri very slightly wider than the thoracic base, rather acute at apex, the disk somewhat more shining than the anterior portions, but exceedingly densely, finely punctured, with three or four feeble impressed stri# near the suture, more strongly marked toward apex, the strie where more deeply impressed becoming also very minutely punctate, elsewhere without trace of serial punctuation. Under surface decidedly more shining, the abdomen very minutely, feebly and densely punctate, the anterior portions more coarsely and rather densely so. Jegs rather long, very slender ; poste- rior tarsi a little shorter than the tibise, with the first joint three-fourths as long as the next three. Male.—Eyes separated by three-fourths more than their own width; fifth ventral slightly longer and less truncate than in the female, more or less feebly impressed. Length 4.8-5.5 mm.; width 1.9-2.3 mm. Massachusetts; North Carolina. The last joint of the maxillary palpi is about twice as long as the third, and about one-half wider, with the inner side one-half as long as the outer, the apex obliquely truncate. In the female the eyes are but slightly smaller than in the male, and the joints of the antenne a very little shorter and thicker. This is the most abun- dant of our eastern species. I. variabilis Horn.—Trans. Am. Ent. Soc., Sept. 1875, p. 156.—Oval, more or less robust and convex, sometimes slightly wider behind the middle, piceous-black or paler, dull, the elytra shining; pubescence fine, short and comparatively sparse. Head feebly, nearly evenly convex, very densely and rather finely punctate; eyes small; antenne slender, filiform, one-half as long as the body. JProthorax about two-thirds wider than long, gradually narrowed from base to apex, the latter scarcely more than one-half as wide as the base, feebly arcuate; sides broadly rounded anteriorly ; base transverse, the sinuations broad and very feeble; disk extremely densely and rather finely punctate, the basal fovez broadly impressed and feeble. lytra about three and one-half times as long as the prothorax, and, near the middle, from one- third to one-half wider, not very acutely rounded at apex; disk very finely, somewhat sparsely punctate, with scarcely a trace of impressed strie except the two inner. Abdomen minutely, not densely punctate, the metasternum 148 Coleopterological Notices, ITI. coarsely and rather densely so, the prosternum dull, finely and very densely punctured. Legs slender, generally pale. Male.—Kyes separated by about three times their width. Length 4.3-5.9 mm.; width 1.8-2.3 mm. California; Washington State. In both male and female the third and fourth joints of the antenne are long, slender and equal, and the joints throughout are but slightly shorter and thicker in the latter sex. The maxillary palpi are nearly as in sericea. The large series before me is exceedingly heterogeneous, not only in color, but in general habitus, there being some specimens which are broad, short and strongly convex, with the prothorax large and at the base as wide as that of the elytra, and others which are comparatively narrow, elongate and depressed, with the prothorax much smaller. These differences seem to be independent of sex, and surely indicate a mixture of closely related but distinct forms, which the amount of material before me will not suffice to elucidate ; especially as there is marked uniformity in the antenne, sculpture and other structural characters throughout the series. I. Ruscitiosa n. sp.—Rather narrowly oval, generally slightly broader behind, dull, the elytra shining, dark piceous-brown throughout, the anterior portions blackish; pubescence fine, short, moderately dense. Head feebly, evenly convex, very densely, rather coarsely punctate; eyes very small and unusually convex; antenne slender, filiform, three-fifths as long as the body. Prothorax nearly three-fourths wider than long, the sides broadly rounded, almost straight and parallel toward base; apex avout two-thirds as wide as the base, feebly arcuate; base transverse, the sinuations broad and very feeble ; disk extremely densely punctate, the punctures rather coarse; basal foveze widely impressed and feeble. lytra about three times as long as the prothorax, and, at or behind the middle, nearly one-half wider, the two bases equal; apex rather abruptly but acutely rounded; disk finely but distinctly, not extremely densely punctate, without trace of impressed strie or series except the usual two near the suture, which are fine but deep toward apex. Abdomen polished, very finely, rather sparsely punctate, the prosternum duller and densely, more coarsely so. Legs slender, moderate in length, the basal joint of the hind tarsi distinctly shorter than the remainder. Male.—Third and fourth joints of the antennz equal, each nearly twice as long as the second ; eyes separated by about four times their own width. Length 4.0-4.3 mm. ; width 1.7-2.0 mm. California (Los Angeles). National Museum. The antenne and maxillary palpi are nearly as in sericea and variabilis, from both of which this species is at once distinguishable Coleopterological Notices, III. 149 by its smaller size, coarser punctuation and much smaller, but at the same time more convex and prominent eyes. It is represented by two specimens collected by Mr. Albert Koebele. I. pullla Melsh.—Proc. Ac. Phil., III, p. 60.—Elliptical, convex, the elytra generally slightly wider behind, piceous-black throughout, the tarsi and sometimes the tibiw, prosternum and a feebly marked narrow sutural line slightly testaceous ; surface slightly shining, the pubescence very short and dense. Head finely, very densely punctate, the surface almost flat; eyes rather small; antenne slender, about one-half as long as the body, the third and fourth joints subequal in both sexes. Prothorax about three-fourths wider than long, strongly narrowed from base to apex, the sides almost evenly arcu- ate ; apex scarcely more than one-half as wide as the base, feebly arcuate ; base transverse, scarcely visibly arcuate toward the middle, the angles right, not distinctly rounded ; disk very vaguely and broadly impressed along the middle, sometimes only near the base, the punctures fine but deep, distinct, and almost in mutual contact; basal fovee very feeble, short and extending slightly along the basal margin. lytra but slightly more than three times as long as the prothorax, and, behind the middle, nearly two-fifths wider, at base equal in width to the thoracic base; apex moderately acute; disk punc- tured and with subsutaral strie nearly as in sericea, the punctures slightly coarser and a little sparser. Under surface rather shining, the abdomen very minutely, feebly and somewhat sparsely punctate. Legs nearly as in sericea but rather shorter. Male.—Kyes separated by about three times their own width. Length 4.9-5.3 mm.; width 2.1-2.3 mm. Rhode Island; North Carolina. The terminal joint of the maxillary palpus is rather short and robust, much less than twice as long as the penultimate, with the inner side nearly three-fourths as long as the outer. In this respect, as well as in the much smaller eyes, the present species is inter- mediate between sericea and quadristriata. The antenne do not differ greatly in the sexes, and are distinctly shorter and a little thicker than in sericea. As in nearly all the darker species the entire body is frequently paler from immaturity. This species makes the nearest approach to the Kuropean murina, but has the pronotal punctuation distinctly coarser and less dense ; in fact we have no species in which the punctuation of this part is SO excessively fine and densely crowded as in murina. I. quadristriata Coup.—The Canad. Nat., 1865, p. 62; velutina Lec.: N. Spec. Col., 1866, p. 139.—Rather broadly oval, strongly convex and shin- ing, pale rufo-testaceous throughout, the anterior portions, antenne or the 150 Coleopterological Notices, ITI. entire body sometimes darker, piceous ; pubescence extremely short and rather sparse. Head feebly, evenly convex, densely punctate, rather shining; eyes small; antenne filiform, about one-half as long as the body, with the third and fourth joints elongate and equal in both sexes. Prothorax nearly twice as wide as long, the apex rather wide, fully two-thirds as wide as the base, feebly arcuate ; base transverse, very broadly and feebly arcuate toward the middle; sides rounded toward base, convergent and straighter toward apex ; basal angles slightly obtuse and narrowly rounded; disk finely, deeply and more or less densely punctate, the interspaces sometimes nearly as wide as the punctures ; basal fovee almost completely obsolete. /ytra four times as long as the prothorax, near the middle about one-fourth wider, rather abruptly and narrowly rounded at apex; disk finely and deeply but quite sparsely punctate, with only the vaguest traces of impressed strie except the two sutural, which become very pronounced toward apex. Under surface polished and rather sparsely, finely puuctate throughout. Legs moderate in length, slender, nearly as in sericea. Male.—Kyes separated by nearly three times their width, not appreciably differing in the female. Length 5.0-5.8 mm.; width 2.1-2.8 mm. Canada; Lake Superior; North Carolina. A widely diffused and common northern species, distinguishable by its rather sparse punctuation and the sides of the prothorax more strongly rounded toward base, so that in some specimens the disk is distinctly widest before the base. The male is notably narrower than the female. The terminal joint of the maxillary palpi is broad, and the outer side is scarcely longer than the apex. The single male which I took in North Carolina is decidedly shorter and broader than another male taken in Rhode Island, and the sides of the prothorax near the base much less rounded, in fact almost straight and parallel; it may possibly be a variety. The disk of the prothorax is less convex toward the sides than in the species allied to serzcea, and there are generally two feebly impressed discal foveze and a feeble median impression near the base. I. monticola n. sp.—-Elongate-oval, moderately convex, dark piceous- brown throughout and shining, the prothorax more rufous ; pubescence very short, comparatively sparse on the elytra. Head small, not one-half as wide as the prothorax, broadly impressed near the epistoma, finely but strongly punctate, the punctures slightly separated; eyes small, separated by fully three times their width in the female; antenne long, very slender, the third joint four-fifths as long as the fourth. Prothorax about four-fifths wider than long, broadly but distinctly arcuate at apex, the curvature nearly continuous posteriorly along the sides, the latter becoming parallel near the base, the basal angles not rounded ; base transverse, the sinuations distinct ; disk rather Coleopterological Notices, ITT. 151 strongly and densely punctate, the punctures a little larger than those of the head and quite distinctly separated; basal foveze almost obsolete. lytra nearly four times as long as the prothorax and scarcely wider than the latter, acutely ogival in apical third; sides subparallel; disk finely but strongly, quite sparsely punctate, without impressed lines or series, the two sutural however becoming very strong near the apex. Abdomen finely, rather sparsely punctate. Legs slender, the basal joint of the hind tarsi three-fourths as long as the remainder. Male.—Unknown. Length 7.0 mm.; width 2.9 mm. California (Lake Tahoe). This species is distinct in facies, resembling only oblongula in this respect. It differs however from oblongula in many characters besides those mentioned in the table, as may be inferred from the description. The single specimen appears to be a female, although it is impossible to state this definitely without dissection. From quadristriata it differs in its more elongate form, larger prothorax, which is much more nearly equal in width to the elytra, and in the shorter third joint of the antenne. I. oblongula n. sp.—Oblong, rather elongate and subparallel, convex, blackish piceous throughout, the legs and antenne concolorous ; tarsi slightly paler; suture feebly, narrowly rufescent ; pubescence very short, dense, pale and conspicuous. Head feebly convex, finely, densely punctate, the punctures distinctly separated; eyes large; antenne very slender, filiform, rather more than one-half as long as the body. /Prothorax fully three-fourths wider than long, the apex subtruncate, scarcely two-thirds as wide as the base, the latter transverse, the lateral sinuations broad and almost obsolete; basal angles very slightly obtuse, not rounded; sides broadly arcuate throughout, more strongly so and convergent anteriorly ; disk slightly wider at basal third than at base; convex, finely, extremely densely punctate, very feebly impressed in the middle near the base, the basal fovexw widely, feebly impressed and incon- spicuous. Jlytra fully four times as long as the prothorax, and, at the middle, about one-third wider, ogival at apex; humeri slightly and arcuately oblique externally, not at all exposed at base; sides very feebly arcuate; disk with rather distinct but very feebly impressed lines throughout the width, finely, densely punctate, without punctured series. Abdomen minutely, somewhat densely punctate, polished ; propleure very sparsely so externally. Legs long and slender, normal. Male.—Unknown. Length 6.8 mm.; width 2.7 mm. New York (Buffalo). The single specimen is a female, and has the third joint of the antenne twice as long as the second and three-fourths as long as 152 Coleopterological Notices, III. the fourth. The eyes are separated by scarcely one-third more than their own width. The fourth joint of the maxillary palpi is rather robust, the inner and outer sides making an angle at the base of nearly ninety degrees, the former about one-half as long as the latter, the outer side but slightly longer than the apex which is feebly arcuate. There is no species here described which is closely allied to this, but the form of the maxillary palpi shows that it should be placed in the neighborhood of quadristriata. I. valida Schz.—Pr. Am. Phil. Soc., XVII, 1878, p. 370.—Evenly ellip- tical, convex, shining, dark ruto-testaceous throughout; pubescence fine, rather short and dense. Heud small, much less than one-half as wide as the prothorax, feebly convex, broadly impressed at the base of the epistoma, finely and not very densely punctate, the punctures separated by nearly their own widths ; eyes very large; antenne long and slender, filiform, nearly two-thirds as long as the body, with the third and fourth joints elongate and equal. Prothorax strongly narrowed from base to apex, about twice as wide as long; sides evenly rounded; apex three-fifths as wide as the base, feebly arcuate ; base transverse, the sinuations extremely feeble; basal angles right, not distinctly rounded; disk finely but deeply punctate, the punctures distinctly separated, feebly impressed just before the scutellum; basal foveze almost obsolete. Elytra nearly four times as long as the prothorax, and, at the middle, about one-fourth wider, gradually and rather acutely rounded behind, disk rather finely, densely punctate, with series of almost similar punctures which are completely unimpressed, except the two or three sutural toward apex. Abdomen finely, densely punctate; metasternum very sparsely so; propleure and prosternum again more densely so. Legs slender, the first joint of the hind tarsi very nearly as long as the remainder. Male.—Kyes separated by scarcely two-thirds of their own width; fifth ventral segment but slightly longer than the fourth, scarcely more sparsely punctate, broadly subtruncate at apex and not impressed. Length 7.0 mm.; width 3.3 mm. Florida. The terminal joint of the maxillary palpi is moderately wide, with the inner side but slightly more than one-half as long as the outer, the latter distinctly longer than the apex, the apical angle distinctly rounded. This is one of the few tropical types which extend into our fauna from Central America, where they constitute a characteristic element of the genus. It is readily distinguishable by its unusually large eyes and completely unimpressed elytral series. aa Coleopterological Notices, III. 153 I. texama n. sp.—Oblong, the sides nearly straight and parallel in middle two-thirds, pale ochreous-testaceous throughout, rather shining; pubescence fine and dense. Head moderate in size, nearly one-half as wide as the pro- thorax, feebly convex, impressed at the base of the epistoma, finely and not very densely punctate; eyes large; antennz very long and slender, filiform, two-thirds as long as the body, third and fourth joints slender, equal. Pro- thorax a little less than twice as wide as long, strongly narrowed from base to apex ; sides strongly, almost evenly rounded, almost parallel in basal third ; apex truncate, three-fifths as wide as the base, the latter transverse, the sinuation, on each side of the rather narrow median lobe, feeble but distinct ; basal angles right, narrowly rounded; disk strongly convex, finely, densely punctate, the punctures slightly. separated ; basal foveze almost obsolete. Elytra about three and one-half times as long as the prothorax, and, at the middle, not appreciably wider, rather abruptly, strongly rounded behind; disk comparatively coarsely, very densely punctate, with series of nearly similar close-set punctures, the series feebly impressed, especially strongly so toward apex throughout the width. Abdomen finely, rather sparsely punc- tate, the metasternum extremely sparsely, rather coarsely so, the propleure polished, finely, sparsely punctate throughout. Legs slender, the basal joint of the hind tarsi distinctly shorter than the remainder. Male.—Eyes separated by their own width; fifth ventral segment nearly as in valida, but rather more rounded behind. Length 7.7 mm., width 3.1 mm. Texas. . This species is allied to valida, but easily distinguishable by its more oblong parallel form, longer prothorax, larger head, smaller and more distant eyes, more distinctly impressed elytral series, and more sparsely punctate abdomen. The maxillary palpi are nearly as in valida, the last joint about twice as long, but scarcely twice as wide as the penultimate, the outer side about one-fourth longer than the apex, the inner side a little more than one-half as long as the outer. TEDINUNS n. gen. Mandibles distinctly notched at apex, the lobes subequal. Antenne slen- der, filiform, the third joint shorter than the fourth, less conspicuously so in the female. Maxillary palpi with the fourth joint as in Isomira, rather slen- der, the angle at the base less than right, the inner side much shorter than the apex, the latter longer and more oblique in the male than in the female. Labial palpi with the third joint one-half longer than wide, the apex truncate, the truncation just visibly oblique. Anterior coxe separated by a distinct longitudinally convex prosternal process, which attains the level of the coxal apices, very declivous behind. Tarsi not as long as the tibie, the basal joint of the posterior elongate, the anterior distinctly dilated in the male; ungues Annas N. Y. Acap. Sc1., VI, Nov. 1891.—11 154 Coleopterological Notices, ITT. moderate in length, very slender, the external side feebly, evenly arcuate, the internal pectinate in apical two-thirds, the denticles very fine, short, five or six in number. Genital armature of the male deeply bilobed. This genus while more closely allied to Isomira than to any other here noticed, possesses also many elements suggestive of Capnochroa and Andrimus, especially the general form of the body, and the dilated anterior tarsi of the male. The coarser sculpture of the upper surface and slightly exposed humeri, are also characters reminding us of Andrimus, while the form of the head and tendency to obliteration of the elytral striz are characteristic of Isomira. The genital armature of the male is similar to that of the latter genus. J have seen only a single species which may be defined as follows: TY. amgustus n. sp.—Elongate-oval, rather convex, polished and pale brownish-castaneous throughout ; pubescence short, coarse, subrecumbent, with a few short erect hairs especially toward apex, not dense. Head some- what finely but deeply, moderately densely punctate; eyes rather small; antenne slender and filiform in both sexes, the joints slightly shorter and more obconical in the female than in the male. Prothorax one-half wider than long, the apex subtruncate, just visibly arcuate, two-thirds as wide as the base, the latter transverse, the sinuations broad and extremely feeble; angles right not at all blunt; sides broadly arcuate anteriorly, becoming nearly parallel and straight in more than basal half; disk feebly convex, quite coarsely, deeply and densely punctate, with an elongate-oval impression just before the scutellum ; basal fovee broad but distinct. lytra about four times as long as the prothorax and one-fourth wider, feebly dehiscent very near the apex, gradually, acutely ogival behind; sides parallel and nearly straight in basal two-thirds ; humeri obliquely rounded externally to the prothorax ; disk with series of small approximate punctures, which are obliterated and con- fused with those of the intervals except toward the suture, the series extremely feebly impressed externally but deeply so throughout the length near the suture; intervals coarsely, confusedly and rather densely punctate, the punc- tures as large as those of the series. Abdomen minutely, rather sparsely punc- tate. Legs rather short and robust, the basal joint of the hind tarsi nearly as long as the remainder. Male.—Eyes separated by one-half more than their own width; antenne three-fifths as long as the body, the third joint short, less than two-thirds as long as the fourth; anterior tarsi distinctly dilated, the intermediate sub- dilated ; fifth ventral segment truncate at apex, the truncation broadly, feebly sinuate throughout ; genital armature deeply bilobed, the lobes sparsely setose. Female.—Kyes separated by three-fourths more than their own width ; antenne one-half as long as the body, the third joint fully three-fourths as long as the fourth; anterior tarsi simple; genital armature not visible in the type. Length 5.5-6.0 mm.; width 2.0—2.1 mm. w - . Coleopterological Notices, IIT. 155 Georgia (St. Catharine Island). National Museum. ~ Hasily known by its elongate narrow form, coarse punctuation and pubescence, and indistinct elytral series toward the sides. Two specimens. ANDRIMUS n. gen. Cteniopus Lec. nec Sol. The principal characters of this genus may be stated as follows :— Front not noticeably prolonged. Antenne differing in the sexes, much longer, more broadly compressed, and with the joints more strongly obconical in the male, filiform in the female, the third joint much shorter than the fourth in both sexes. Eyes moderate in size, but convex and prominent, the inner margin very broadly rounded. Maxillary palpi with the fourth joint rather slender, the angle at the base much less than right, the inner side distinctly shorter than the apex, slightly more robust in the male, with the apex longer and sometimes nearly as long as the outer side. Labial palpi with the third joint slender, twice as long as wide, the apex truncate and but slightly oblique. Mandibles truncate at apex, the truncation slightly oblique and very obsoletely, broadly emarginate, the upper lobe twice as wide as the lower, longer and more advanced. Anterior coxe separated by a process simi- lar to that of Cistela but a little narrower, the posterior separated by a slender acute abdominal process. Legs rather short, the tarsi shorter than the tibia, the anterior feebly dilated in the male; ungues rather long and slender, with five or six denticles in apical two-thirds only, the basal third not pectinate. Genital armature distinct in both sexes, broadly sinuato-truncate at apex in the male, more narrowly and deeply sinuate in the middle in the female. In the form of the mandibular apices this genus is intermediate between Cistela and Androchirus, but differs from both in the much feebler emargination. In its slightly dilated anterior tarsi of the male it is between Capnochroa and Tedinus. In the form of body in many of the species, which is oblong-oval, subparallel and but feebly convex in a longitudinal direction, in the aspect of the head, and in the general nature of the sculpture and vestiture it strongly resembles Mycetochara. The elytra are generally abruptly wider at base than the protho- rax, and are gradually, narrowly dehiscent toward apex from near the middle; the surface is striato-punctate and the pubescence is quite peculiar, consisting of longer erect hairs, with others that are shorter and more recumbent. In this last character Andrimus differs radically from Cistela, but in Capnochroa it is feebly indi- eated by viewing the elytra tangentially, when the surface will be found to be sparsely strewn with short erect hairs in addition to 156 Coleopterological Notices, ITI. the ordinary subrecumbent pubescence. In the form of the genital armature this genus differs greatly from any of those allied to Cistela, for in the male this part is not at all bilobed, and, what is still more exceptional in the family, it is more strongly sinuate at apex in the female than in the male; it is almost equally exposed and prominent in both sexes. This genus differs from the European Cteniopus in having the anterior coxe more widely separated, in the short third antennal joint, in its unextended front, and in the longer basal joint of the hind tarsi. Andrimus will probably prove to be a moderately large genus in our Gulf States, but the species are rather closely allied among themselves, and may be difficult to discriminate from description, especially as there is nearly always more plasticity and specific variability in the genera with non-lobed tarsi, than in the others. The material which I have examined indicates five species, appa- rently without much doubt; these may be distinguished by the following characters :— Basal angles of the prothorax prominent laterally....................-MUrrayl Basal angles not prominent. Humeri very narrowly exposed at base.........csecececee eee eeeeeeees DF UMRMEUS Humeri widely exposed at base. Basal pronotal fovez almost obsolete .........c.s00 cee cee ceseeeeee ees COMNCOIOL Basal fovee small but deep and distinct. Eyes in the male separated by their own width ............ MISPeESCeMS Eyes in the male separated by distinctly less than their own width. convergens A. murrayi Lec.—New Spec. Col., 1866, p. 141 (Cteniopus).—Oblong- oval, shining and rather pale piceous-brown throughout; pubescence rather long, semi-erect and sparse on the elytra. Head nearly flat above, with a transversely oval, deep impression involving the base of the epistoma and margin of the front; surface rather finely but deeply, somewhat densely punc- tate, the punctures all distinct ; eyes separated by their own width, bordered internally by a fine groove; antenne scarcely one-half as long as the body, slender, filiform, the third joint much more than twice as long as the second and fully three-fourths as long as the fourth. Prothorax three-fifths wider than long, rather campanulate in form, the basal angles right but distinctly prominent laterally, the sides before them at first feebly sinuate then nearly straight and parallel to anterior two-fifths, then strongly rounded to the apex which is truncate and two-thirds as wide as the base, the latter transverse, the sinuations rather narrow and feeble; disk almost evenly convex, finely, sparsely punctate, with a narrow impunctate median line; basal fovee small Coleopterological Notices, III. 157 but distinct. Llytra between four and five times as long as the prothorax, and, at the middle, about one-half wider, strongly dehiscent in apical third, ogival at apex ; sides parallel, feebly arcuate, the humeri strongly rounded to the base of the prothorax and somewhat widely exposed ; disk with series of rather small, close-set punctures, the rows almost completely unimpressed, except feebly near the suture; intervals finely, sparsely, confusedly punc- tate. Abdomen minutely, extremely sparsely punctate. Zegs rather short and moderately slender, the tarsi all much shorter than the tibie, the basal joint of the posterior a little shorter than the remainder. Length 9.8 mm.; width 3.7 mm. Florida. Cab. LeConte. The description is taken from the unique female type, and I have seen no other specimen which can be placed with it. The lateral prominence of the basal angles of the prothorax is a eharacter which is probably quite variable in degree, and has been noticed by Champion in one of the Central American species of Lobopoda. The type is the largest specimen of the genus which I have seen. The genital armature is narrowly and rather deeply sinuate in the middle at apex, the sinus and apices being about equal in curvature. The fifth ventral segment has, near the apex, a deep transversely oval, abruptly limited excavation. A. brunneus n. sp.—Brown, polished throughout, strongly convex, sparsely pubescent. Prothorax from one-third (male) to one-half (female) wider than long, the sides parallel and straight in basal two-thirds, then rounded to the apex; disk evenly convex, finely but deeply, rather sparsely punctate, without an impunctate median line except near the base; basal fovez almost completely obsolete. Male.—Hlytra four times as long as the prothorax, and, in the middle, about one-third wider, the humeri very narrowly exposed at base; eyes separated by their own width ; antenne two-thirds as long as the body, the joints rather strongly obconical, a little more than twice as long as wide, the third one-half longer than wide and about one-half as long as the fourth; anterior tarsi quite distinctly dilated, subequal in length to the tibia, the basal joint nearly as long as the next two combined ; fifth ventral segment short and broad, not longer than the fourth, very broadly, evenly rounded at apex, the surface not at all impressed; genital armature finely punctate, broadly truncate at apex, the truncation broadly, very feebly, evenly sinuate throughout, the angles obtuse and distinct but slightly rounded; intromittent organ long and very slender. Female.—Elytra distinctly more than four times as long as the prothorax, and, behind the middle, nearly one-half wider, the humeri very narrowly exposed at base; eyes separated by slightly more than their own width; antenne rather more than one-half as long as the body, slender and filiform, 158 Coleopterological Notices, ITI. the third joint nearly twice as long as wide and three-fifths as long as the fourth ; anterior tarsi slender, much shorter than the tibie; fifth ventral segment short, broadly arcuate at apex, the surface broadly, indefinitely im- pressed ; genital armature sinuate at apex, the lateral angles broadly rounded. Length 7.3-8.5 mm.; width 2.6-3.2 mm. Florida (Haulover). Mr. Schwarz. National Museum. When compared with the female of murrayi, the corresponding sex of this species differs in its longer antenne with shorter third joint, in the less exposed elytral humeri, in the widely diffused im- pression of the fifth ventral segment, in the broader, feebler median sinuation of the genital armature, and in its smaller size. The elytra of murrayi are more strongly dehiscent toward apex, and have the sides parallel, so that they are widest at about the middle, while in the present species they are subinflated behind the middle, the sides being more convergent toward base. A. concolor n. sp.—Oblong-oval, rather strongly depressed, brown and polished throughout ; pubescence sparse. Female.—Head rather strongly and densely punctate, with a distinct median longitudinal sulcation ; eyes moderate, separated by fully two-fifths more than their own width; antenne scarcely one-half as long as the body, slender, filiform, the third joint but slightly longer than the second and one-half as long as the third. Prothorax one-half wider than long; sides parallel and nearly straight in basal three-fifths, then somewhat abruptly convergent and feebly arcuate to the truncate apex; basal sinuations very feeble, the broadly rounded median lobe more prominent posteriorly than the lateral portions ; basal angles right and distinctly blunt; disk almost evenly but feebly con- vex, with a very imperfectly defined median impunctate line, very finely, sparsely punctate, the basal fovez almost obsolete. lytra fully four times as long as the prothorax and about one-half wider, rather obtusely ogival in apical third and gradually strongly dehiscent; sides parallel and very feebly arcuate behind, straight toward base, the humeri rather broadly exposed ; disk rather strongly flattened toward the suture, the first three or four striz distinctly impressed ; strial punctures fine; intervals finely, unevenly and sparsely punctate. Abdomen very minutely, extremely sparsely punctate. Legs rather short, the tarsi about as long as the tibia; basal joint of the posterior quite distinctly shorter than the remainder. Fifth ventral segment short, broadly, indefinitely but strongly impressed ; genital armature sinuate in the middle, nearly as in brunneus. Length 8.5 mm.; width 2.9 mm. Georgia. This species is distinguishable at once from murrayt by the very short third antennal joint of the female, and from brunneus by its much narrower, more depressed form and smaller eyes of the same Coleopterological Notices, ITT. 159 sex. There is before me a male which should apparently be asso- ciated with the female type above described, being depressed and nearly similar in size and outline. The pronotum of this specimen is strongly alutaceous and dull, and has two extremely large and deep discal foveve, probably of an accidental nature; the antenne are but slightly more than one-half as long as the body, but stout, compressed, with the joints much more strongly obconical, the third joint scarcely one-half as long as the fourth. A. nigrescens n. sp.—Oblong-oval, rather strongly. convex, piceous- black throughout, the antenne black; tarsi rufescent; integuments shining ; pubescence sparse. Male.—Head rather finely but deeply, very densely punctate; eyes promi- nent, separated by their own width ; antenne long, stout, strongly compressed, fully two-thirds as long as the body and subequal in length to the elytra, joints strongly obconical, scarcely more than twice as long as wide, the third a little longer than wide and less than one-half as long as the fourth. Prothorax rather long and subquadrate, one-third wider than long; sides parallel and straight in basal two-thirds, then evenly, strougly rounded to the truncate apex ; base transverse, the sinuations narrow and feeble; basal angles right, blunt; disk rather convex, finely punctate, the punctures sparse but denser _ toward the middle anteriorly, with a feeble impunctate line toward base; basal fovee small and distinct. Llytra unusually short, twice as long as wide, one-half wider and not quite four times longer than the prothorax, narrowly, gradually dehiscent from the middle, the sides in basal two-thirds parallel and feebly arcuate; humeri broadly exposed at base; disk with rows of rather small punctures, deep and conspicuous except toward the sides, where they become very fine, the striz more or less strongly impressed throughout the width ; intervals finely, confusedly and not very sparsely punctate. Aldomen wanting in the type. Jegs rather short, the anterior tarsi dilated, the poste- rior scarcely three-fourths as long as the tibiw, with the basal joint much shorter than the remainder. Length 8.0 mm.; width 3.0 mm. Florida. Mr. Jiilich. The principal differences between this species and the male of brunneus reside in the broader, relatively longer and more com- pressed antenne, which are black in nigrescens and pale brown in brunneus, in the broader, relatively shorter elytra and much shorter tarsi. In the male of brunneus the hind tarsi are very nearly as long as the tibie. From the male of concolor it differs in its convex form and much longer antenne. With the female type of murrayt it has very little in common. A. convergens n. sp.—Rather slender, moderately convex, piceous ; legs and elytra dark brown; integuments polished throughout ; pubescence sparse. 160 Coleopterological Notices, ITT. Male.—Head somewhat concave between the eyes, rather coarsely, sparsely and unevenly punctate; eyes somewhat large, separated by three-fourths of their own width; antenne moderately stout and very feebly compressed, two- thirds as long as the body, the joints distinctly more than twice as long as wide, the third one-half as long as the fourth. Prothorax scarcely one-half wider than long, slightly wider at anterior third than at base, the sides from that point feebly convergent and straight to the basal angles, the latter right and narrowly rounded; base transverse and straight in middle half, feebly posteriorly oblique laterally ; apex truncate, two-thirds as wide as the base, the sides in apical third rather strongly convergent and feebly arcuate; disk rather finely, sparsely, somewhat unevenly punctate, with an impunctate median line; basal fovee small but deep and very conspicuous. Elytra two- fifths wider than the prothorax and rather more than four times as long ; sides parallel ; humeri rather broadly exposed at base ; disk punctate and striate as in concolor. Abdomen minutely and very sparsely punctate throughout. Legs somewhat short; all the tarsi distinctly shorter than the tibie, the anterior subdilated, the basal joint of the posterior two-thirds as long as the remainder. Fifth ventral segment but slightly longer than the fourth; broadly rounded behind, the genital armature broadly sinuato-truncate at apex. Length 7.3 mm.; width 2.5 mm. New York. The specimen before me is labeled as above, but there is more or less doubt concerning such a northern habitat. The species is quite distinct from the others in the decidedly larger eyes of the male, and the sides of the prothorax convergent and straight from before the middle to the base, also in its minute but unusually deep basal foveee of the pronotum. CAPNOCHROA Lec. This is also an exclusively American genus, and is represented in our fauna as far as known by a single large and interesting species. It is not very closely related to Cistela, although the mandibles are notched at apex and subequally bilobed as in that genus. The sexual characters differ greatly, and the anterior tarsi instead of being strongly compressed and distorted—when modified at all in the male—are here long and slender, and feebly flattened or just visi- bly dilated, with the basal joint as long as the next two together, in this character approaching Andrimus (Cteniopus Lee.) and Tedinus. In the great development of the lobes of the male genital arma- ture, it resembles Androchirus and differs completely from Andri- mus. The unusually composite nature of Capnochroa will therefore be recognized at once. ee ne) 7 7 % = al + Sr Coleopterological Notices, IIT. 161 The maxillary palpi differ somewhat conspicuously in the sexes, the fourth joint being more elongate in the male, with the inner side much shorter than the apex; in the female the inner side is subequal to the apex. Less marked sexual differences in the palpi are observable also in some other genera, such as Isomira and the Huropean Cteniopus, this character apparently being especially developed in the genera with simple tarsi. Some of the Central American species assigned to Cistela by Mr. Champion, are said to have the anterior tarsi more or less dilated, and these may possibly find a more fitting place as a separate genus allied to the present one, but differing in the serrate antenne. Cvs- tela fragilicornis should, almost undoubtedly, be placed in Cap- nochroa. C. fuliginosa Melsh.—Proc. Ac. Phil., III, 1846, p. 59.—EHlongate-ellip- tical, strongly, very gradually pointed behind, moderately convex, dark piceo- eastaneous throughout, dull, the elytra polished ; pubescence extremely short, dense on the pronotum, sparse on the elytra. Head finely, rather densely punctured, the eyes moderate; antenne long, rather slender, feebly com- pressed, filiform. Prothorax from three-fourths wider, to nearly twice as wide as long, the apex less than one-half as wide as the base, truncate; base trans- verse, broadly, rather feebly bisinuate, the basal angles right; sides parallel and nearly straight in basal half, then very strongly convergent and broadly arcuate to the apex; disk very feebly convex, more or less explanate laterally, very finely but strongly, densely punctate, the punctures distinctly but nar- rowly separated; basal fovee small but distinct. lytra feebly, gradually dehiscent toward apex, rather more than four times as long as the prothorax, and, in the middle, quite distinctly wider, very gradually acute behind, each elytron narrowly rounded at tip; sides broadly, feebly arcuate, the humeri obliquely rounded to the base of the prothorax; disk with fine, deeply impressed series of moderately fine distinct punctures, the intervals con- vex, minutely and not very closely, confusedly punctate. Abdomen polished, minutely, rather sparsely punctate, somewhat more closely so toward the middle in the male. Legs and tarsi long, very slender in both sexes, the basal joint of the posterior as long as the remainder. Male.—Kyes separated by just visibly less than their own width; antennze two-thirds as long as the body, the fourth joint fully twice as long as the two preceding together, third slightly longer than wide; anterior tarsi longer than the tibie, extremely feebly dilated, densely clothed beneath with short flavate hairs which bristle laterally in the form of fimbrie; fifth segment with a rather small median sinuation which is much wider than deep, the edge bordering it strongly inflexed; genital armature deeply bilobed, the lobes large, long, flattened, slightly twisted but not bent downward, excavated along their inner face, their apices rounded. 162 Coleopterological Notices, ITT. Female.—Broader than the male, less acute behind ; eyes separated by one- third more than their own width ; antenne one-half as long as the body, the third joint more than twice as long as the second and two-thirds as long as the fourth ; anterior tarsi slender, not quite as long as the tibie; fifth ventral segment broadly impressed, the apex very feebly, narrowly sinuate, the geni- tal armature truncate at apex, with the angles broadly rounded. Length 10.0-12.0 mm.; width 3.9-4.7 mm. 4 9. New York; Virginia. This species is rather abundant and apparently not subject to great variation. CISTELA Fab. Chromatia Lec.—Sm. Misc. Coll., III, p. 244. This genus is at present quite composite, but the species here referred to it agree in having the antenne more or less compressed, always distinctly serrate internally, with the third joint very short in both sexes, but decidedly longer in the female than in the male, and the fourth joint of the maxillary palpi somewhat slender, with the angle at the base less than right. The genital armature is more or less truncate or feebly sinuate in the female, as is usually the case throughout the family, and is deeply bilobed in the male, the two lobes sublaminate and long, but scarcely attaining the development or densely corneous structure seen in Capnochroa and Androchirus. The punctuation and pubescence as a rule are extremely dense, the latter very short and more or less inconspicuous; the punctures are, however, much sparser in the aberrant amcna. The latter species forms the type of the genus Chromatia of LeConte, but the difference in the form and prominence of the genital armature, “the sixth ventral segment being prominent and deeply excavated in the male,’? upon which it was separated, does not of itself appear to be sufficiently decisive.’ It is quite true that amena differs greatly from brevis in general facies and sculpture, but marginata is a satisfactory intermediate in many of its characters in spite of its much larger size, and it does not seem proper to admit the generic validity of amena without’ granting that of marginata and also the Central American nigricornis, a specimen of which is before me, 1 Note the extraordinary diversity in the male sexual characters of this genus as exemplified by C. brevis and the closely related C. theveneti. ’ : : | oe le, te i eT el Coleopterological Notices, ITT. 163 and which is more closely allied to amena than to any species of the brevis group. Our species are comparatively few in number and may be dis- tinguished by the following table :— Form oval or elliptical, rather strongly convex, the sides of the elytra more or less evenly continuous with those of the prothorax. Femora red. Broadly oval, the punctuation St cea, minute; antenne in the male distinctly shorter than the body... aes Slee ese ioe sae saels . brevis Narrowly oval, the punctuation bee so eee ide quite dicuines on the head and pronotum under low power; male autenne nearly as long as PUMEME MIME OMY cesreasess cam seccaeseecenseecceses seereeercceessrcessreee h MOCVENECTL Femora black. Third antennal joint of the female three times as long as the second ; prothorax nearly twice as wide as long ........... cee cesses eeeeeeees PEMSUIS Third joint in the female barely twice as long as the second ; prothorax distinctly less than twice as wide as long .......... cee cee eee concer ss OPACA Form oblong or oblong-elongate, the sides of the elytra straighter and not evenly continuous with those of the prothorax. Large species, the antenne long and unusually slender; prothorax much less than twice as wide as long...........seceeceecreeceecereeee MArEinata Smaller species; antenne very stout, shorter, strongly compressed ; pro- thorax short, more than twice as wide as long; punctuation of the upper SMM IACS WMUSUALLY SPATSEC... 2.0 sac coosec ccc carcesces covers cecconses cee cee coe MMOCIA C. brevis Say.—Journ. Ac. Phil., III, 1823, p. 269; erythroptera Ziegl.: Proc. Ac. Phil., II, 1844, p. 46; rufipes Melsh.: Cat. No. 518.—Elliptical, rather strongly convex, feebly shining, alutaceous; black throughout, the legs and sometimes the entire elytra pale rufo-ferruginous; entire upper surface ex- cessively minutely, densely punctate. Head narrowly impressed along the middle; eyes moderate ; antennez stout, strongly serrate internally. Prothorax rather large, one-half to two-thirds wider than long; apex truncate, one-half as wide as the base, the latter transverse, broadly, strongly bisinuate; sides strongly convergent from base to apex, broadly, evenly arcuate; disk unim- pressed in the middle. Slytra nearly four times as long as the prothorax, and, in the middle, quite distinctly wider, the sides very feebly arcuate and subcontinuous with those of the prothorax, the humeral callus not quite as prominent laterally as in pinguis; disk finely but deeply striate, the strie finely but rather distinctly punctate; intervals broadly, very feebly convex. ay oe _ bl . ; > er ee faba: 238 _ American Species of the Genus Anemone. plante quia plus de cing pétalees, alors on sera doublement for de n’en point séparer celle qui fait object de cette discussion et qui servira seulement A établir une transition de l'un & V’autre genre.” Sims gives a very good figure of it in Bot. Mag., t. 866 (1805), and remarks: “A dubious species, but certainly agreeing in more _ points with Anemone than with Thalictrum.” . Type of Anemone thalictroides, L., in Herb. Linn.; type of — Thalictrum anemonoides, Michx., in Herb. Michaux. | . IV.—The Rutherfurd Photographic Measures of the Group of the Pleiades. BY HAROLD JACOBY. Read Dee. 7, 1891. I, INTRODUCTION. THE present paper contains the results of RuTHERFURD’s photo- graphic observations of the Pleiades group, made in 1872 and 1874. The history of the plates, together with a description of the appa- ratus with which they were made and measured, will form the subject of a separate paper by Professor J. K. Rees, at whose ‘suggestion, it is proper to say, the entire investigation was under- taken by me. The Pleiades have been selected for reduction from among a large number of clusters photographed by RuTHERFURD with his 13 inch telescope, because this group offers the best op- portunity for judging of the accuracy obtainable by the methods employed. It is hoped that the near future will see the publication of all the other RurHEeRruRD measures, many of which constitute the earliest accurate observations of the clusters in question. The measures, aS contained in the observation books, are in the form of position angles and distances from the star 24 p. This star was selected as the origin of codrdinates, for it is situated near the centre of the cluster, and is otherwise better suited to measurement than the neighboring large star Alcyone. Accordingly, the method of reduction in its general course is similar to that in use for ordinary micrometric measures, and to that adopted by Govutp in his reduc- tion of the earlier Pleiades observations.* The author takes this opportunity to thank Dr. Gould for his kindness in explaining many of the details of the methods used by him. It has been possible to obtain a very accurate determination of the scale values for the various plates by a comparison with BEssEL’s measures, and the recent ones of Eux1n.{ These scale values will be of very high * National Academy of Sciences, vol. iv, third memoir. } Transactions of the Astronomical Observatory of Yale University, vol. i, ‘part i. Annas N. Y. Acap. Sct., VI, Feb. 1892.—17 240 Rutherfurd Photographic Measures. importance when the reduction of the other clusters is undertaken. The details in regard to them will be found under Y. in the present paper. In general, an effort has been made to let the reduction _ of each plate be separate from that of the others as far as possible. General correction tables have in most cases been replaced by special tables for each plate. Thus the numbers obtained control each other, and the results from each plate become available before all the plates are firlished. In making the exposures, two impressions of the cluster were taken on each plate. The second impression is West of the first. After it was finished, the clock-work of the telescope was stopped, and the cluster allowed to move off the plate, the brighter stars leaving ‘‘trails,’’ or black lines on the developed negative. Shortly before the central star reached the edge of the plate, the clock was again started, and the central star was allowed to impress itself once more. ‘This final image of the central star gives us the orvent- ation of the plate, as after the application of the proper corrections, it furnishes the direction of position angle 270°. (See VI.) Both the Eastern and Western impressions were always measured. In the reductions these sets of measures have been treated as if they came from separate plates, a proceeding which helps to eliminate errors of computation. Each complete measure of position angle comprises three settings on the last image of the central star, and three on the star to be measured, in both positions of the measuring micrometer; or twelve settings in all. The measures of distance consist of similar means of twenty settings. There are in all 1262 complete measures of distance, and as many of position angle. The following table gives various quantities connected with the several plates. The first column contains the number of the plate, those originally marked on the plates after development being re- tained. The second column contains the date; the third the middle sidereal time of the exposure. The column headed Tel. Therm. gives the reading of a thermometer attached to the tube of the tele- scope. The column focus gives the reading of a micrometer head, which measured the position of the plate-holder. In the column marked zero is given the distance of the last (or orientation) im- pression of the central star from the origin of co-ordinates.. These distances are expressed in divisions of the glass scale of the measur- ing micrometer. The last columns give the zenith distance (¢), the parallactic angle (q), and the refraction constant (x), for the central star 24 p. 24] Group of the Pleiades. gLgv'9 LLov'9 £99v"9 199v'9 Logv'9 999¢'9 89979 vo9b'9 g9ht"9 g9St"9 zgSb'9 o9Sv"9 oSSt'9 LYySv'9 z69v'9 z6Q9v'9 Lo9v'9 g9gr'9 1L9v'9 zlov'9 “x” “30'T v9'ov LL1v 89°68 VL:oS 6g3°1S bre 60°Lz 80'Sc ob Cv'ze oS ‘ff 6r'eZ OMe 6z'°gt 1S°1g A a oh of ‘by gf EL 96 6h O11 PS°LS zo'o1 Qv'gt bzCL LOvhe gl9f | gl-6g ZQ1e pS "of 61°68 a 0.197, Sg°L c€ ral Sie Tek ov SiQedl ov Sg°Z zS gLiL zs gL°L ZS I'g lz 6° S¢ 6 eae “WIOUL PL fe Sts sits Ne 6v 6v 6b bz Ge Boe “WMIOU.L 4x Oca cieO of 6£ of Ge OO oS gb &z of 6£ of Gb zh &z C265 -1 QE Lz‘o€ oO eo 4 OV ica ge Lz-of SO are a O7 Fler os Lv-of Co GG ay O62 0 zs Lv-o€ (6) Sea (0) Or. Ooh see zS Lv-of SS ob €z CZ. On ov lz zl:6z C1 ti + 0 zon 6 vE Z1°O£ O OI 9 OCn is ov mUOl Olmhy 44 Di ay aS E “OULD [B010PIg "M 29°s9S wSS yh = -Bu07T ‘Sob ($b ob = ye] ‘MUOX MIN ‘CundUGHIaYy ‘WW ‘I 40 AUOLVAUMSAG Qz ‘AON QZ ‘AON QZ “AON QZ ‘AON ZI ‘AON ZI "AON ZI “AON ZI “AON "AON "AON “AON ‘AON "AON "AON B Wal 2 ul uer ue “uve ‘aes OrOVO ODO OO wwe eee oye vLgI ble VLSI blg1 VLQI LI bLgi VLQI bLegt bLgI bLQI bLg1 VLQI VLgI ZLQ1 ZLQ1 Zlgi ZLQI ZLQ1 ZLQI 242 Rutherfurd Photographic Measures. JO DIVISION ERRORS. Tue glass scale of the micrometric measuring machine is about seven inches long, and has 335 spaces. All the measures of dis- tance were made with this scale. It was read by means of a read- ing microscope of the customary form, so arranged that ten revo- lutions of the screw corresponded to one space on the scale. Thus it was possible to read directly to .oo1 spaces, and by estimation to .ooot. All readings were made in this way to .coor spaces. Before the reduction of the observations was begun the scale was sent to Professor W. A. Rogers, of Colby University, Waterville, Me. The latter has investigated the division errors. The method employed was not such as would free the results from cumulative error; but it is highly probable that a sufficient degree of accuracy for the present purpose has been attained. Professor Rogers has measured the 50-spaces, the 25-spaces, the 5-spaces, and finally the single spaces, with his micrometric apparatus; and the results are given in terms of 1 division of his micrometer microscope. This equals 0.coccc02 meters. The measures of the 50-spaces have not been used, as they were only made as a check upon the: measure- ment of the 25-spaces. The following are the results :— ae Group of the Pleiades. 2438 RELATIVE ERRORS OF THE 50-SPACES. Space. Error of Space. Total Error. div. div. o- 50 UEMe ap Bee 50-100 — 0.7 + 4.8 100-150 +54.8 +59.6 150—200 + 9.6 +69.2 200=250 —23.4 +45.8 250-300 —45.8 + 0.0 RELATIVE ERRORS OF THE 25-SPACES. _ Error of Space. Total Error. a =a a div. O— 25 8.4 25— 50 : 50- 75 75-100 100-125 125-150 150-175 175-200 200-225 225-250 250-275 275-300 300-325 co SB JIW ANTAL QW | oon | dS ee | NOB OnHUNINsA Go me BINT O1 Oo }tttt44+4+4444+ ONE GS Ca Nts (Oe OoOmoonN COs COW OWN 244 Space. 150-155 155-160 160-165 165-170 170-175 Space. 225-230 230-235 235-240 240=245 245-250 Rutherfurd Photographic Measures. RELATIVE ERRORS OF THE 5-SPACES. Error of Space. div. —2.6 +1.4 —4.0 +14.2 9.5 Error of Space. div. —2.1 +2.9 +2.0 —2.5 Error of Space. Total Error. div. —2,6 —f.2 —5.2 +9.0 0.0 Total Error. div. —2.I1 —2.4 div. +4.0 —JI[, 4 +0.8 —1.3 eel Error of Space. div. +2.9 +4.1 —0.7 le —8.o Space. 25-30 30-35 35-40 40-45 45-50 Space. I00=105 105-110 110-115 115-120 120-125 Space. 175-180 180-185 185-190 190-195 195-200 Space. 250-255 255-260 260-265 265=270 270=275 Space. 300-305 305-310 310-315 315-320 320-325 Error of Space, of Space. div. —1.8 +0.4 Ss inigs —4.6 +4.7 Error of Space. div. —I1.5 40.5 —2.3 +1.8 41.5 Error of Space. div. —O, 3 +2.1 —0.3 0.2 —I.7 Error of Space. div. +1.9 +3.3 —1.2 —I.9 —2.I Total Error. div. —4.2 —2.9 —6.8 —4.5 0.0 Total Error. Space. 50-55 55-60 60-65 65-70 12-79 Space. Error of Space. diy. aie a) +8.7 +0.4 —I.1 —4.8 Error of Space. diy. SS ee —O.I —4.7 0.0 125-130 130-135 135-140 140-145 145-150 Space. of Space. 200-205 205-210 210-215 215-220 220-225 Space. div. —5.6 —3.6 =o +9.5 +3.1 Error of Space. 275-280 280-285 285-290 290—295 295-300 diy. 2.5 —4.4 —3-4 1.5 +3.8 Total Space. o-I 1-2 2-3 3-4 4-5 Space. 15-16 16-17 17-18 18-19 19-20 Group of the Pleiades. RELATIVE ERRORS OF THE SINGLE SPACES. Error of Space. div. | —5.6 +3+1 — 0) 1 ano S200) Error of Space. tee +3.4 —0.5 —3.1 +1.5 1.5 Error of Space. div. +0.8 +2.8 has —0.7 0.5 Error of Space. div. —0.9 ano —O, 7 —I.0O +2.1 Error of Space. diy. 0) (6) | +0.4 a? +0.7 +0.6 Total Error. div. —5.6 —2., 9 re 3: D +2.0 0.0 Total Error. diy. +3.4 +2.9 oe +1.3 0.0 Total Error. div. +0.8 +3.6 +0.2 —O. 5 0.0 Total Error. div. —0.9 ——@,, 2 —0.9 —1.9 0.0 Space. 5- 6 6— 7 7— § 8- 9 9-10 Space. Space. 35-36 30-37 37-38 38-39 39-40 Space. 50-51 5le54 52-53 53-54 54-55 Error of Space. div. oe + 3.6 —0.4 —4.2 +3.2 Error of Space. div. +4.0 +2.5 —0O.4 +0. 5 +1.4 Error of Space. diy. —I.O 3:3 —I1.7 —4.7 +-4.2 Error of Space. div. +3.8 —1.2 —o.6 +2.0 Teen Error of Space. div. +0.7 —0.9 1.3 —I.5 0.5 Total Error. div. —2.2 +1.4 +1.0 —3.2 0.0 Total Error. diy. —4.0 5 —1.9 —I.4 0.0 Total Error. div. —1.0 +2.3 +0.6 —4.1 0.0 Total Error. div. +3.8 +2.6 +2.0 +4.0 0.0 Total Error, div. +0.7 —O.2 +1.1 —0.4 0.0 Space. IO-II 11-12 12-13 13-14 14-15 Space. 25-26 26-27 27-28 28-29 29-30 Space. 40-41 41-42 42-43 43-44 44-45 Space. 55-56 56-57 57-58 58-59 59-60 Space. 70-71 71-72 72-73 73-74 74-75 Error of Space. div. +e 7 —I1.7 —0.5 ond +0.2 Error of Space. div. —4.7 +3.2 +1.2 +0.9 —o.6 Error of Space. div. +1.0 —I.0 —I.1 +0.8 +0.2 % Error of Space. div. +0.8 +1.9 ano) +0.7 —I.5 Error of Space. div. +2.0 —2.4 —2 i 4 +3.6 S150) 245 Total Error. div. —4.7 —1.5 —0.3 +0.6 0.0 246 Rutherfurd Photographic Measures. RELATIVE ERRORS OF THE SINGLE SPACES.— Continued. Space. 75-76 76-77 77-78 78-79 79-80 Space. eee gI—92 92-93 93uoF: 94-95 Space. 105-106 106-107 107-108 108-109 109-110 Space. 120-121 f T21I-122 122-123 123-124 124-125 f Space. W 135-136 136-137 137-138 138-139 139-140 Error of Space. div. +1.2 —0.5 —=I.1 +0.9 Error of Space. div. —zZ2. 4 —2.4 +0.4 +2.8 +1.5 Error of Space. div. 0.5 —O Il —o.8 -+-0.6 0.7 Error of Space. div. +0.3 —o.8 —O.2 41.7 +1.0 Error of Space. div. —0.9 —I1.4 —I1.3 +-0.6 3.0 Total Error. div. Space. 80-81 81-82 82-83 83-84 84-85 Space. Error of Space. div. —I.I1 +1.2 0.0 —0O.4 0.0 Error of Space. 96 97 95- 96- 97- 98 98— 99 99-100 Space. TIO-III ILI-112 112-113 113-114 div. ie 0.0 +0.1 SHO), 1 I Error of Space. div. 88) —2.0 —0O.7 +2.7 secant +3.2 Space. 125-126 126-127 127-128 128-129 129-130 Space. 140-141 | 141-142 | 142-143 143-144 144-145 | Error of Space. div. —o.8 +3.-5 —1.9 —2.4 +1.6 Error of Space. div. +4.2 —4.3 2.2 —I.7 —0O.4 Total Error. div. —I.I +o.I +o.1 —O. 3 0.0 Total Error. diy. —I.4 —T.4 —1.3 —I1.4 0.0 Total Error. div. Teron) —1.3 —6.0 Oro 0.0 Space. 85-86 86-87 87-88 88-89 89-90 Space. 100-101 IOI-102 102-103 103-104 104-105 Space. 115-116 116-117 117-118 118-119 119-120 Space. 130-131 131-132 132-133 133-134 134-135 Space. 145-146 146-147 147-148 148-149 149-150 Error Total of Sas Error. div. +60 —o.8 —6.3 +0.5 +0.6 Error of Space. diy. —o.8 +1.9 0.0 —I.0O +o.1 Error of Space. of Space. div. +0.4 —3. (@) —O.3 2.4 +0.4 Error of Space. diy. +1.6 +0.4 +1.1 +9.3 —3-4 div. +6.0 5.2 el —o.6 0.0 Total Error. div. —o.8 41.1 +1.1 -+-o.1 0.0 Total Error, div. a —4. I —2.0 0.0 Group of the Pleiades. 247 RELATIVE ERRORS OF THE SINGLE Spaces.— Continued. Error Total Error Total Error Total Reece of Space.| Error. epace: of Space.| Error. SEBEE of Space.| Error. § div. div. div. div. div. div. 150-151} —0.2; —o.2}155-156| +1.4 | 41.4 | 160-161 | —o.3 | —o.3 151-152; +0.8) +0.6] 156-157 | —o.7 | +0.7 | 161-162| +2.9 | 42.6 152-153| -+0.5) -+1.1)157-158| —3.2 | —2.5 | 162-163) —o.9 | +1.7 153-154 |—128-8|—127.7] 158-159| +3.6 | +1.1 | 163-164] —3.8 | —2.1 154-155 |+127.7 0.0] 159-160 | —I.1 0.0 | 164-165 | 42.2 0.0 Space. Error Total Space. Error Total Error Total of Space.| Error. of Space.| Error. Space: of Space.| Error. div. div. div. div. div. div. 165-166 | —o.1 | —o.1 | 170-171| +2.0 | +2.0 | 175-176] +0.8 | +0.8 166-167 | +-o.1 0.0 | 171-172| +0.6 | 42.6 | 176-177| —1.6 | —o.8 Bey-108) --1.8 | 4-21.38 | 172-173] —0.9 | +-1.7 | 177-178| +-5.7 | +4.-9 168-169 | —I.9 | —o.1 | 173-174| —I.7 0.0 | 178-179] —2.0 | +2.9 169-170 0.0 0.0 | 174-175 0.0 0.0 | 179-180] —2.8 0.0 Error Total Error Total Error Total pune: of Space.| Error. euace: of Space.) Error. Spare: of Space.| Error. div. div. div. div. div. div. 180-181 | +2.8 | +2.8 | 185-186| +-1.0 | +1.0 | I90-191 | —1.3 | —1.3 181-182 | —2.1 | +0.7 | 186-187 | +3.0 | +4.0 | I91-192| +1.0 | —o.3 182-183 | —1.6 | —o.9 | 187-188 | —o.9 3-1 | 192-193] +1.8 | 41.5 183-184 | +0.3 | —o.6 } 188-189 | —2.2 | +0.9 | 193-194] +0.7 | +2.2 § 184-185 | +0.6 0.0 | 189-190 | —o.8 0.0 | 194-195 | —2.3 0.0 Error Total Error | Total Error Total pace: of Space.| Error. Space of Space.| Error. pgs of Space.| Error. div. div. div. div. div. div. 195-196| +0.6 | +0.6 | 200-201 | —1.9 | —I.9 | 205-206] 4-3.6 | +3.6 196-197 | —1.8 | —1.2 | 201-202 | —o.8 | —2.7 | 206-207} +2.7 | +6.3 197-198 | —o.3 | —1I.5 | 202-203 | —o.7 | —3.4 | 207-208 | —2.0 | +4.3 198-199 | —0.4 | —1I.9 | 203-204| +0.6 | —2.8 | 208-209 | —5.4 | —1.1 199-200; +1.7 0.0 | 204-205 | +2.6 0.0 | 209-210] +-1.3 0.0 § Space. Error Total Bastia! Erece Space. Error Total Space. Error Total of Space.| Error. of Space.) Error. div. | div. dive iia dive 4 diy. div. 210-211; —I.1I | —I.1 | 215-216) —o.2 | —o.2 | 220-221) +0.1 | +o.1 211-—212| —2.1 | —3.2 | 216-217| +1.5 | +1.3 | 221-222] +0.8 | +0.9 212-213| —o6 | —3.8 | 217-218 | —2.5 | —1.2 | 222-223] —o.8 | +0.1 213-214| +2.7 | +1.1 | 218-219 | —o.6 | —1.8 | 223-224 | —1.0 | —o.9 214-215| +0.8 0.0 | 2519-220| + 1.9 0.0 | 224-225 | +-1.1 0.0 248 Rutherfurd Photographic Measures. RELATIVE ERRORS OF THE SINGLE Spaces.— Continued. Space. 225-226 226-227 § 227-228 228-229 | 229-230 Space. | 240-241 241-242 | 242-243 243-244 244-245 Space. | 255-256 256-257 f 257-258 f 258-259 259-260 Space. Error of Space. div. +1.5 —0O.4 +1.1 —I.2 —Io Error of Space. diy. os =O), -+0.6 Total Error. Space div. +1.5 | 230-231 +1.1 | 231-232 +2.2 | 232-233 +1.0 | 233-234 0.0 | 234-235 Total Error. Ege div. +3-3 | 245-246 +3-1 | 246-247 +3-7 | 247-248 +2.5 | 248-249 0.0 | 249-250 261-262 262-263 263-264 264-265 Total Error. eee 270-271 271-272 272-273 273-274 274-275 Space. iof Space. 285-286 286-287 f 287-288 288-289 289-290 div. +1.9 =O, 5 —0;2 +0.5 —2.2 div. +1.2 | 275-276 +2.4 | 276-277 2.7 | 277-278 —0.2 | 278-279 0.0 | 279-280 Total Error. Cra, div. +1.9 | 290-291 +1.8 | 291-292 --1.6 | 292-293 +2.1 | 293-294 0.0 | 294-295 Error \of Space. diy. +2.1 —2.0 —o.6 +0. 4 +o.1 Error jof Space. div. aoe! 215 —2.5 13 Error of Space. Error of Space. Total Error. diy. +2.1 +0.1 —0.5 —Oo.1 0.0 Total Error. div. Total Error. diy. +0.7 james) +4.4 2210 +0.4 Error of Space. div. —2.3 —0.7 —1I1.6 +2.5 +2.3 div. 40.7 Total Error. div. —2.3 —3.0 —4.6 —2.I1 0.0 Space. 235-236 236-237 237-238 238-2390 239-240 Space. 250-251 251-252 252-253 253-254 254-255 268-269 269-270 Space. 280-281 281-282 282-283 283-284 284-285 Space. 295-296 296-297 297-298 298-299 299-300 | Error \of Space. Error of Space. Fie —0O.7 —3.0 +1.3 —0.4 +2.9 Error of Space. Error of Space. Error of Space. div. +3-9 S'S) +1.6 —I1.0 —I1.9 Total Error. § Total Error. div. On 3:7 —2.4 —2.8 0.0 Total Error, diy. +1.3 —o.6 —I1.4 7 0.0 Total Error. Total Error. Group of the Pleiades. 249 RELATIVE ERRORS OF THE SINGLE Spaces.— Concluded. Error Total Error Total Error eure. of Space.| Error. SAC. of Space.| Error. ds of Space. ‘ div. div. diy. diy. div. 300-301; +1.6 | +1.6 | 305-306] +0.9 | +0.9 | 310-311 | +0.7 301-302 | —3.1 |} —I.5 | 306-307) +1.2 | 42.1 | 311-312] -+-o.1 302-303 | —o.2 | —1.7 | 307-308| —o.9 | +1.2 | 312-313] —1.3 f 303-304 | --0.7 | —I.0 | 308-309] +0.5 | +1.7 | 313-314] 42.3 304-305 | -+I.1 .O | 309-310] —1.6 .O | 314-315 | —1.8 Error Total Error Total Error Total of Space.| Error. eye of Space.| Error. EBACE. of Space.| Error. div. iv. div. div. 320-321 | +3.9 .Q | 325-326 ; —1.6 321-322| —2.8 .I | 326-327 322-323 | —1.8 -7 | 327-328 323-324 | —0O.4 .I | 328-329 324-325 | 1.1 -O | 329-330 Error Eee jof Space. div. 3390-331 | 9.9 331-332 | —2.7 3327333,| a1-5 333-334| +2-4 334-335 | —0O.2 Professor Rogers finds that at 62°.o Fahrenheit I average space of the RUTHERFURD scale = 0.020859 inches. From the above cbservations he has computed a table of correc- tions for every line of the scale. The corrections are expressed in microns, and in the computation the relation already given, viz: I micron = 5 div. of the microscope has been used. The relation between the micron and the. RuTHER- FURD scale is: I average space of scale = 529.9 microns. I have therefore divided the corrections given by Professor Rogers by 529.9, and thus obtained the following table of division error corrections, which must be added to readings of the scale. These corrections are expressed in terms of the average space as a unit; and will reduce the readings to what they would have been, if all the spaces were exactly equal to the average space. 250 Rutherfurd Photographic Measures. DIVISION ERROR CORRECTIONS: ADDITIVE TO OBSERVED READINGS. Corr. -++-.0028 + .0009 + .0009 +.0019 —.0006 +.0021 + .0036 +.0036 -+-.0045 +-.0049 +.0047 +.0049 +.0047 +.0051 +-.0055 +-.0059 +.0055 +.0060 +-.0055 +.0057 + .0062 +.0049 -+.0038 +.0049 + .0043 +.0045 + .0042 + .0034 + .0030 + .0030 + .0025 +.0028 + .0026 +.0025 + .0025 + .0047 +.0045 +-.0023 + .0026 +.0028 +-.0021 +.0011 +.0013 + .0025 -++ .0030 +.0023 +.0019 +.0021 +.0017 + .0017 Line. 102 103 104 105 106 107 108 109 110 ILI 112 113 114 I15 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 Corr. -+-.0015 -+.0026 -+.0028 -++.0026 + .0028 -++.0030 + .0034 -+.0036 +.0042 +.0049 + .0042 -++-.0040 + .0042 +.0057 +.0074 + 0060 +.0059 +.0064 -+-.0068 + .0076 + .0085 -+.0089 ++ .0096 + .0110 -+.0113 +.0113 + .0129 +.0123 +.0117 + .0125 +.0125 +.0119 .-.0121 +.0132 +.0136 +.0138 +.0138 +.0140 +.0147 +.0168 + .0187 -+-.0180 +.0197 +.0198 -+-.0206 +.0217 +..0223 +-.0232 -+-.0240 +-.0231 Line. | 151 | 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184. 185 186 187 188 189 190 IQI 192 193 194 195 196 197 198 199 201 202 203 204. 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 Line. 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 DIVISION ERROR CoORRECTIONS.— Continued. Corr. +.0159 +.0142 +.0142 +.0136 + .0142 + 0146 +.0130 +.0130 + 0130 + 0127 +.o1I9 +.0125 +.0115 +.0106 + .o0104 +.0104 +.0093 +.0081 +.0076 +.0079 Group of the Pleiades. Line. 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 Corr. +.0079 +.0079 | 4.0074 + .0057 +.0053 +.0055 + .0038 +.0055 + .0045 ++ 0047 + .0042 + .0032 +.0015 +.0013 +.0015 +.0017 +.oo11 +.0004 .0000 —.COI3 Line. 291 292 295 204 205 296 297 2908 299 300 | 301 — 302 303 304 395 300 307 308 309 310 Corr. —.0023 —.0028 —.0036 —.0028 —.0023 —.0008 —.OO17 —.OOII —.OO15 —.0023 —.0013 —.0023 —.0023 —.0017 —.OOII —.0004 +-.0004. + .0004 ++ 0009 + .0006 Line. 311 312 33) 314 a 316 ot7 318 SEe) 320 B21 322 373 324 325 326 327 328 328) 330 251 Corr. -+.0009 -+-.0009 + .0004 +.0008 + .0006 . 0000 —.0002 + .0002 —.0008 + .0004 +.0017 +. .0006 —.0002 —.0004 .0000 —.0006 + ,.0006 +.0015 -+-.0008 .0000 When the scale was graduated, line 154 was omitted and after- wards inserted. This accounts for its apparently discordant divi- sion error. CORRECTION FOR RUNS The following table contains the correction for runs, which has The values are derived from an extended series of measures of all the 330 spaces of the scale. that the fina] results would not have been sensibly affected, had this correction been entirely neglected. been applied to all the Pleiades observations. The corrections are very minute, and it is probable 252 Rutherfurd Photographic Measures. CORRECTION FOR RUNS. Fraction Fraction tere: of Space. of Space. -+.0000 -++.0000 -++.0000 +.0001 +.o001 +0001 + .ooo1 +.oooI +.0002 -+-.0002 -++.0002 + .0003 +-.0003 +.0003 -+-.0003 +.0004 +.0004 +.,0004 +,0004 -+-.0005 +0005 +.0005 +-.0005 -+-.0006 -+-.0006 As an example of the application of the run and division error corrections, let us take the measures of Merope on plate 16 Kast. The observation book gives: Fraction of Space. Corr. ADDITIVE TO OBSERVED READINGS. Fraction of Space. +.0012 + .0013 +.0013 +.0013 +.0013 + .0014 +.0014 + .0014 +.0014 +.0015 +.0015 + .0015 + .0015 +.0015 +.0016 +.0016 +..0016 + .0016 +.0017 +-.0017 +.co17 + .co17 +.0018 +.0018 +.0018 Scale Reading Scale Reading Scale on Merope. on 24 p. Distance. Mean. Direct . . 162.3006 125.0932 37.0074. 36.9986 Reversed. 88.0903 125.0801 36.9898 The corrections then are: CORRECTION FOR RUNS. Direct. Reversed. Arg., .1006, +.0002, Arg., .0932, +.0002. Difference --.0000 Mpa nes Sie. te Arg., .0801, +.0002 AYrg., .0903, --.0002 -+.0000 We have therefore: Mean of observed distances . Correction for runs 74 ‘¢ division error Corrected distance CORRECTION FOR Direct. Arg., 162, -+.0265. Arg., 125, —-.0113. Difference +.0152 Meany cyiads- att DIVISION ERROR. Reversed. Arg., 125, -.0113 Arg., 88, +-.0023 -+.0ceg0 . +0.0121 «97 O1ORe PI RP AT > “ * 4" Group of the Plevades. 253 IT. CORRECTION FOR REFRACTION. THE calculation of the refraction corrections, in itself somewhat laborious, can be much facilitated by the use of special formule and tables. The usual Besselian refraction formule are not very well adapted to the reduction of photographic measures. For the photographic plate gives us the position angle at the central star, or at the centre of the plate, while the Besselian formule require the use of the position angle at the point midway between the two stars. A special correction is needed, then, in photographie work, to obtain this latter position angle, which is itself of no further interest. Moreover, several quantities which would be different for every star when using the Besselian formule, ean be made constant for the whole plate by means of the formule now to be deduced. Let us consider the spherical triangle formed by the zenith (Z), the central star (S), and the star under observation (S’). Let z and z’ be the zenith distances of the two stars, and let _t and 1’ he the angles which S S’ makes with the vertical circles at S and S’. All the quan- tities in the figure are apparent; 7%. e., their values are supposed to be uncorrected for re- fraction. The effect of refraction is to vary z and z’ while the angle at Z remains unchanged. Weare to deter- mine the consequent variations of s and 1. Now we can expand these variations in terms of the variations of z and z’ by means of the general formula: __ dp _ ap de ag (a y)—= Tart ay tba ae 04 Fae ray +3 T% ap. :,(@) 254 Rutherfurd Photographic Measures. If we do so, we shall have, omitting only certain very minute — terms of the third order :* | o—s=rcosl—r’cosl’ ) 2 ein Y (6) $A — Di Sr sind sing s in which o and J are the values of s and / after correction for re- fraction, and 7 and r’ the vertical refractions of S and S’. The details of the rigorous deduction of equations (b) are omitted here, — for the sake of brevity. But the equations as they stand can easily — be obtained by an inspection of the figure. : Equations (6) are extremely accurate, as well as simple in form; — but they are inconvenient for practical purposes since they involve — r’ and /’, quantities which are different for every star on the plate. We shall therefore find expressions for r’ and /’ in a more conve- ~ nient form, and at the same time introduce the quantities s and z — into the second members of the equations. The expansions will be - carried to terms in s? inclusive. Following BEssEL, we put: Te i tans, Pina tamer. 3 where & and k’ are the usual refraction quantities with the argu- — ment ‘‘apparent zenith distance.”” We may also write: k! — = es dz and therefore: r= ktan/ + tan 2! (e/ —2) Z Moreover: 4 tan z’= tan z + (z’—z)sec?z-+ (z’—z)*tanzsec?z.... cos 1’= cos 1 — (l/ — 1) sin 1— 3(l’ — l)cosl.... sin /’=—sin 1+ (l’ —l)cos 1—3(l’ — ly sm/l.... We also have, to terms of the second order, inclusive :+ 2! — z= —scos! +48? sin?1 cot z l’— [=ssinlcotz +43’ sinl cosl(1 + 2 cot’ z) * While the present investigation was being printed, Professor Newcomb — called my attention to an investigation of differential refraction, in which he has used fundamental formule somewhat similar to equations (6). I was not previously aware of this work of Professor Newcomb’s, which was published © in his Report on the Transit of Venus, Dec. 8-9, 1874 (Ex. Doc., U. 8. Senate, — 1879). j 4 + For a demonstration of these formule, see Jordan, Handbuch der Vermess-— ungskunde, dritte Auflage, 1890, vol. iii, p. 313. | Group of the Pleiades. 255 If we substitute the values from the last equations in the preceding ones, and then in ()), we obtain: o—s=—-+ k sec’?zcos’*l.s —tk sec’ z cot z cos / sin? l.s? + & sin’ l.s ++4k tan z(1-+ 2cot’ z) cos / sin’/.s? dk 2 2 $ 2 oe zcos’l.s — kk tan z sec’ z cos’ l.s Zz + 4k cot zcos J sin? J.s? — ksec’®z cot z cos l sin? l.s? s(A—)=— k sec’? z sinlcosl.s + 4ksec’z cot z sin* l.s? +k sinlcosl.s + dkétan z(1 + 2cot?z) sin/ cos?l.s? dk Tee tan zsin/cosd.s+ ksec’z tan zsin/ cos’ /.s’ zZ — ksec’zcot zsinl cos? l.s? —tkcot zsin®l.s’ Introducing auxiliary quantities and simplifying, these equations can be written: o—s=—sk[tan’zcovl+1]/+As+B8? ) Cc A—l=—ktan’zsin leosl + A’ + B’s ie where fs Gin Ha 2 Gos I dz ib —— tan z cos | — k tan*®z cos’ l ee yy sin Lcosl az B’= tktanzsin 1+ k tan*zsin / — k tan’z sin®/ ‘The auxiliary quantities A, B, A’ and B’, which are very minute, can be taken from the following tables, in using which s is to be considered expressed in seconds of are. It has not appeared neces- sary to extend these tables beyond the zenith distance 63°, the logarithmic tangent of which is 0.3, since this will probably include all the RurHerruRD photographs of star clusters, as well as any. others that. may be made for comparison with them. I may add that these tables afford a much more convenient solu- tion than the method previously published by me,* in which the problem was treated in an entirely different wav. _ * Astronomical Journal, vol. x, p. 163. Annats N. Y. Acap. Sct., VI, Feb. 1892.—-18 Rutherfurd Photographic Measures. GENERAL REFRACTION TABLES. Table of A X 10%, 256 l 0.0 0°|—.OooI 10 |—.OOI 20 |—.OOI 30 |—.OOo1 40 |—.OOI 50 |—.oo1 60 000 70 000 80 .00O0 rere) .000 100 forere) 110 ferele) 120 000 130 |—.OOI 140 |—.OOI I50 |—.OOI 160 |—.OOI 170 |—.OOI 180 |—.OOoI 190 |—.OOI 200 |—.OO! 210 |—.Ooo1 220 |—.OOI 230 |—.001 240 000 250 ferere) 260 relele) 270 .00O0 280 .00O 290 000 300 000 310 |—.Ooo1 320 |—.Oo1 330 |—.OoI 340 |—.OoI f 350 |—.Ool Log. tan. z. O.1 0.2 —.003 —.006 —.002 |—.006 .002 |—.005 .002 |—.005 .OOI |—.004 .OOI |—.003 Oot. ome 000 |—.ooI .000 000 feyere) rerele) 000 .000 000 |—.OOI OOI |—.002 -OOI |—.003 .OOI |—.004 .002 |—.005 .002 |—.005 .002 |—.006 003 |—.006 002 |—.006 .002 |—.005 .002 |—.005 OOT |—.004 .OOI |—.003 .OOL |—.002 000 |—.OOI1 ferere) 000 000 000 000 000 000 |—.OOI = O0T |=—,002 —.OOI |—.003 —.OOI |—.004 —.002 |—.005 —.002 |—.005 —.002 |—.006 —.012 —.012 —.OII —.009 —.007 —.005 —,003 —.001 .000 .000 .000 —.OOI —.003 —.005 —.,007 —.,009 —.O1I —.O12 —.O12 —.O12 —.OII —.009 ' —.007 — 005 —.C03 —,OOI .000 .000 .000 —.OOI —.003 —.005 —.007 —.009 —.O11 —.O12 Table of B X 10°, Log. tan. z. l 0.0 0.1 0.2 0°|—.0028 |—.0044 |—.0075 10 |—.0026 |—.0043 |—.0073 20 |—.0024 |—.0038 |—.0065 30 |—.0021 |—.0033 |—.0054 40 |—.0016 |—.0025 |—.0040 50 |—.0013 |—.00138 |—.0028 60 |—.0009 |—.0012 |—.0018 70 |—.0006 |—.0007 |—.0009 80 |—.0002 |—.0003 |—.0004 90 | .0000} .0000|} .0000 100 |-+.0002 |-+-.0003 |-+-.0004 110 |-++.0006 |-++.0007 |-+-.0009 120 |-+.0009 |+.0012 |+.0018 130 |+.0013 |+.0018 |++.0028 140 |-+-.0016 |++.0025 |-+-.0040 150 |+.0021 |+.0033 |-+.0054 160 |-++.0024 |+.0038 |-+ 0065 170 |-+.0026 |-+-.0043 |-+.0073 180 |-+.0028 |++.0044 |-+.0075 190 |+-.0026 |+-.0043 |-++.0073 200 |-+-.0024 |+.0038 |-+.0065 210 |+.0021 |+.0033 |+.0054 220 |+.0016 |+.0025 |-+. 0040 230 |-+.0013 |+.0018 |+.0028 240 |-++.0009 |+.0012 |-+.0018 250 |+.0006 |+.0007 |-++.0009 260 |-++.0002 |+.0003 |+. 0004 270 | .0000] .0000} .0000 280 |—.0002 |—.0003 |—.0004 290 |—.0006 |—.0007 |—.0009 300 |—.0009 |—.0012 |—.0018 310 |—.0013 |—.o0018 |—.0028 320 |—.0016 |—.0025 |— 0040 330 |—.0021 |—.0033 |—.0054 340 |—.0024 |—.0038 |—.0065 350 |—.0026 |—.0043 |—.0073 Group of the Pleiades. 2517 GENERAL REFRACTION TABLES.— Continued. Table of A’. Table of B’ X 103, Log. tan. z. Log. tan. z. L 0.0 O.1 o2 “ Md “d 0°} 0.0 0.0 0.0 Ko) 0.0 | +o.1 | +0.2 20 | +o.1 | +o.1 | +0.4 30 | to.1 | +0.1 | +0.5 40 | +o.1 | +0.2 | +0.6 50 | tor | -+o.2 | +0.6 60 | +o.r | +0.1 | +0.5 70 | +o.I | +0.1 | +0.4 80 0.0 | +o.1 | +0.2 go 0.0 0.0 0.0 1 Kore) 0.0 | —O.1 | —o.2 IIo | —o.I | —o.1 | —o.4 120 | —o.I | —o.1 | —o.5 i200 oO... ‘| —-0.2 |’ —o.6 140 | —o.I | —o.2 | —o.6 150 | —o.1I | —o.I | —o.5 160 | —o.I | —o.1 | —o.4 170 0.0 | —o.I | —o.2 180 0.0: 0.0 0.0 I90 | 0.0/} +0,1 | +0.2 200 | +0.1 | +0.1 | +0.4 210 | +o.1 | +o.1 | +0.5 220 | +0.1 | +o.2 | +0.6 230 | +o0.1 | +0.2 | +0.6 240 | +0.1 | to1 | +0.5 250 | +o.1 | +o.1 | +0.4 260 0.0 | +0.1 | +0.2 270 0.0 0.0 0.0 280 0.0 | —O.I | —o.2 290 | —o.I | —o.I | —o.4 360 | —o.I | —O.I | —o.5 310 | —o.I | —o.2 | —o.6 320:| —o.I | —o,2 | —o.6 330 | —o.I | —o.1 | —o.5 3240 | —o.I | —o.1I | —o 4 350 0.0 | —O.1 | —o.2 258 Rutherfurd Photographic Measures. We sometimes need the correction for the position angle p instead of that for 7, which is given by equations (c). For that purpose we introduce the parallactic angle g, and write finally: ¢— s=sksin 1" [tan?z cos? (p—q) +1] 4+ As4+ Bs? l@ % — p=—k tan? zsin (p—q) cos (p—q)— k tan zsingtan$-+ A’-+ B's The term — k tan z sin q tan § is the usual term introduced for the purpose in question.* It will also be noticed that » — q has been substituted for its equivalent /; and that the factor sin 1”’ has been introduced in order that we may use s expressed in seconds of arc. This last change must also be made in equations (c) if we apply them to any practical case. It will be noticed that the formule (d) are very similar in form to those of BrssEt, from which they differ by the use of & instead of zx, and z (the apparent zenith distance) instead of 2 (the true zenith distance). If, following BrssEL, we introduce x by means of the equation :+ | x tan’ 2 be tantz + tam 2 z we can write (c) in the form: o—s=—szx[tan’2co’lt1]+s(k—x)+B9 A— 1=—-x«xtan’2sin leosl14+ B's The following little table gives the values of (4 — x) for various values of tan z. Log tan z (k —x) X 103 0.0 -+.0016 0.1 +.0023 0.2 +.0028 0.3 -+.0040 0.4 +.0059 It is plain from this table and the preceding ones, that for the reduction of the present Pleiades plates we may neglect the term in k — x, as well as those in Band B’. We may therefore write our formule : o— Ss=sx[tan’2cos’*(p—q)+1] ? (e) A — l= — xcosec 1” tan’ 2 sin / cos / J * Bessel, Astronomische Untersuchungen, vol. i, p. 165. t Loc. cit., p. 157. Group of the Pleiades. 259 In reducing the RutHreRFuRD plates it will not he necessary to pay any attention to the term —k tan zsin gq tan 6 already referred to above. For this term is a constant correction to all the position angles of any given plate. It will therefore affect the determination of the zero of position angles by the same amount as it does the position angle of any star. Its effect upon the differ- ence will therefore be nil. Finally, then, we may correct all the distances and position angles by means of the following formule: o—s =S-x[tan’2cos?(p—q)+1] xe nm — p= — x cosec 1” tan’ 2sin(p — gq) cos(p — q) but in the case of plates taken at considerable zenith distances, it would be necessary to employ the more accurate formule (c), and the tables adapted to them. In practice it has been found convenient to prepare special tables o—s of and x — p for each plate. The argument of these tables is p. The quantities were first computed for every 10° of p — q and then tabulated for every 10° of p. They are strictly tables of single entry, since 2 and qg are constants for the whole plate. The refraction corrections were then taken from the tables by inspection, the multiplication of the distance-refraction factor being effected with CrELLE’s tables. The special refraction tables are given here to facilitate any possible computations that may hereafter be under- taken in connection with the RUTHERFURD plates. It should perhaps be mentioned that a doubt exists as to whether the Hastern or Western impression was made first, at the time of observation. A careful consideration of all the existing evidence on this point has led me to take the Hastern impression as the one made first, and it is so marked in the table at the end of I. But it is proper to say here that the final results would not be influenced, if I had assumed the Western impressions as the earlier ones. The effect of this assumption would be to interchange the letters W. and H. in the table at the end of I., and the words West and Last in the headings of the tables now to be given. But since both impres- sions have been made and measured, in the case of every star, and on every plate, the mean of the results would not be affected by interchanging the refraction corrections. | 260 Rutherfurd Photographic Measures. SPECIAL REFRACTION TABLES. Plate 16 East. Plate 16 West. Plate 17 East. C¢— s x 103, ——"§ X 103, +.396 +.393 +.384 +.369 +.352 +. 334 =in=3 50 +.305 +-.296 +.293 Oo Ov +.404 +.401 +.392 +305 +-.357 +.340 -+.320 +.306 +.296 = 208 +.296 +.306 +.320 ++.340 +357 +-375 +.392 +.401 T— Dp. aS x 103, baa 4t44 +.404 +.401 +.392 | OES MONS) C) NONE OI CODD DOHWO H & | 2 375 +:357 +.340 +.320 +.306 -++-.296 +-293 +.296 +.306 +.320 +.340 tera +.375 +.392 +.401 Group of the Pleiades. 261 SpreciAL REFRACTION TABLES.— Continued. Plate 17 West. Plate 18 East. Plate 18 West. aS p- X 103, § 21°| +.326 31 AI 51 61 71 8I gI IOI III. 121 131 14! I51 161 171 I8i Ig! 201 Bit 221 231 241 251 261 271 281 291 262 Rutherfurd Photographic Measures. SPECIAL REFRACTION TABLES.— Continued. Plate 19 East. Plate 19 West. Plate 20 East. in x 103, 305° ==) < 103, Group of the Pleiades. SPECIAL REFRACTION TABLES.— Continued. Plate 20 West. —' x 108, Plate 21 East. Plate 2x West. 8 x 103, § 1-538 +.463 +.458 +.443 +.420 +.390 +.360 +.450 +.446 +.432 +.409 +.383 477355 +-.326 +.306 +.291 +.286 +.291 +-.306 +.326 1-355 1-383 +.409 264 Rutherfurd Photographic Measures. SpEcIAL REFRACTION TABLES.— Continued. Plate 22 East. Plate 22 West. Plate 23 East. oc—Ss 7—S : x 103, : . x 103, S +.422 +-410 oO | 314° +-417 ; +.407 2 | 324 +.407 5 | : 334 Fob +—++5 4+ NUN COCONINO NUN WOON DN ONUN DONNY ONUN Keeley ol tell ae! OMABRMAMBMO CONMNAUAANO OOULUMANYO OONLAAHE $++++5++ Group of the Pleiades. SPECIAL REFRACTION TABLES.— Continued. Plate 23 West. Lae BO 315°| +.369 325 | +.366 Be sain ai--30° 345 | +-352 B550 | 1-337 alt 325 15 | +.314 25 | +.302 35 | +.296 45 | +.293 55 | +.296 65 | +.302 Sate -3R4 85 | +.325 Ol +337 105 | +.352 115 | +.360 125 | -+-.366 135 | +.369 145 | +.366 155 | +.360 165 | +.352 Eh) 1-337 185 | +.325 195 | +-314 205 | +.302 215 | +.296 225 | +.293 235 | +-296 245 | -+.302 255 | +-314 265 | +-325 275 | +-337 285 | +.352 295 | +-360 305 | +.366 s C108. rp fe) tO O11 ONIN on 42.7 (eee Plate 24 East. a —— > 103, $ ale: +.756 +.712 +.645 +.569 +.488 +.412 anno z +.307 +.292 +.307 Seely +.412 +.488 104 114 124 184 194 234 244 264 274 284 294 265 Plate 24 West. Bae ee ey ii Ds +.730 0.0 | tee B.S +.680 |—29.1 +.621 | —39.1 SAO yeas 473 | 4425 +.401 |—39.1 sir34a \=ar29an +-306 |—I5.5 +.293 0.0 +-306. | 15.5 1-343 ola 2Ou +.401 | +39.1 +-473 | +44.5 [548 a4455 +.621 | +39.1 +.680 | +29.1 mata me hae Sons +.730 0.0 ap Eo ais +.680 | —29.1 +-.621 | —39.1 +:548 | —44.5 +:473 | —44.5 +-401 | —39.1I +343 | —29.1 ariseO | ==15.5 +:293 0.0 306 | 15.5 | +:343 | +29.1 +-401 | +39.1 +°473 | +44.5 +:543 | +-44.5 +:621 | +39.1 +:680 | +29.1 Seif ES) oit=25-5 266 Rutherfurd Photographic Measures. SPECIAL REFRACTION TABLES.— Concluded. - Plate 25 East. Plate 25 West. CSS Gi—RS Sesh — 74 : : 103. +.529 +.520 +.500 1-470 ae 432 Gol Gores NWO OW = bE EEE +.512 +.503 +.485 +.456 +.420 +.384 aie 47 +.320 +.300 “F.294 +.306 a= .320 +.347 +.384 +.420 +.456 +.485 abs +.512 +--503 +.485 +-456 +.420 +.384 +-347 +.320 +.300 +.294 +.300 +.320 +-347 +.384 +.420 +-456 +-485 +.503 Group of the Pleiades. 267 LY. CORRECTION FOR PRECESSION, NUTATION, AND ABERRATION. PRECESSION and nutation affect all the position angles at the central star equally. For they change only the position of the celestial equator; and this changes nothing but the direction of the zero of position angles on the plate. They produce no effect what- ever on the distances. Moreover, it has been shown by BrEssEL* that if a very small circle be supposed drawn upon the sky, the effect of aberration will be to transform it into another small circle, concentric with the first, but having a slightly different radius, and also slightly revolved about the common centre. It follows from this that the aberration correction of the position angles, like that _ for precession and nutation, is a constant for the whole plate; while the aberration correction of the distances is entirely independent of the direction in which they are measured. This makes the applica- tion of all these corrections a very simple matter. If we adopt the usual designations of the American EHphemeris, as well as the customary Besselian formule, we have for the position angles: a’ = 20”.06 sin a sec 6 y’ = cos o tan 6 3 COS a Sec 6 8’ = sin oa tan 8 Ap = — Aa’ — Bp’ —Cy’ — Dd’ which is additive to observed position angles. The annual increase of position angles is: 20.06 sin a sec 6. For the distances, the aberration correction is given by: y = (tan « sin 6 + sina cos 8) sin 2” 5 = — CoS a COS 6 Sin 1” As=(Cy+D5)s * Bessel, Astronomische Untersuchungen, vol. i, p. 207. 268 Rutherfurd Photographic Measures. which is additive to observed distances. If we substitute in the above formule the co-ordinates of the central star 24 p; viz: hoe Sao cc a Re we get the following expressions for the correction to reduce the observed values to 1873.0:— For the position angles : +17//.9 + [n1.2536]A + [n9.7974] B+ [ng.4020] C+ [ng.5560]D, for plates taken in 1872. + [n1.2536]A + [n9.7974]5 + [ng9.4020]C-+ [ng9.5560]D, for plates taken in 1873- —17//.9 + [n1.2536]A + [n9.7974]B + [ng.4020]C+ [n9.5560]D, for plates taken in 1874. For the distances: s {[4.6513]C +[n 4.4064]D}, for all plates. If we apply these formule to the several plates we find the fol- lowing values of the position angle corrections, and of the factor for correcting the distances: Position Angle Distance Correction. Factor X 103, 418.6 —.0769 +18.5 —.0769 +20.0 —-.0913 me +-.0217 aos.) +.0217 ose +-.0217 33.9 +-.0130 —33-9 +.0130 —34.9 —.O11I — 34.9 —.O1II The values are the same for Eastern and Western impressions. The distance corrections have been computed with CRELLE’s tables by simply multiplying the factor given above by the number of thousands in the distance s. The position angle corrections, being constant for the whole plate, have been incorporated with the ‘zero correction,” as will be explained later (see VI.). Group of the Pleiades. 269 v. SCALE VALUE, It is of course of the highest importance to obtain an accurate determination of the ‘‘scale value,’’ or number of seconds of are corresponding to one division of the measuring micrometer. The values of this quantity used in the present paper depend entirely upon a comparison with the Konigsberg and Yale heliometer meas- ures of the Pleiades. It is proper to call attention to the fact that the reduction of the other clusters measured by RuTHERFURD must be made with the scale values deduced here: and this is another reason for letting the reduction of the Pleiades precede that of the other clusters. Accordingly, six ‘‘standard stars’? have been selected, and the scale value for each plate has been determined so as to make the sum of the six distances of these stars from 24 p equal to the sum of the same distances as furnished by the helio- meter observations. For this purpose, the heliometer places have been interpolated to 1873.0 by means of the Yale and Konigsberg measures, using the proper motions given by ELK1n.* The condi- tions governing the selection of the standard stars have been the following: I. The stars must have been observed both at Yale and Konigs- berg. II. The magnitudes must be between 7.0 and 8.2, so as to be bright enough to be heliometrically well determined, and at the same time not so bright as to blur the photographic images. III. The stars must be symmetricallv situated in position angle about 24 p. This will free the resulting scale value from the various errors depending on the direction of measure- ment. It will also remove the effect of such inaccuracy as may exist in the heliometer place of the central star 24 p. * Transactions of the Astr. Observatory of Yale University, vol. i, p. 99. 270 Rutherfurd Photographic Measures. IV. The distances of the stars from 24 p must be large, but not jarge enough to bring them at all near the edges of the plate. The following stars were selected in accordance with these con- ditions: Heliometer Approximate Star. : Distance. Mag. Pos. Angle. Anon, 20 I 700.64 8.0 0.8 39 2895.67 eT. 61.4 34 2436.45 1:2 126.1 23 1578.34 8.0 176.5 I 1600.38 8.2 258.8 4 1618.07 8.1 298.6 11830.55 The distribution in position angle is such that y (sin p) = —o.10 , &(cosp)=-+0.18 The effect of any error in the heliometric place of 24 p upon the sum of the distances will therefore be quite inappreciable. Using then the above value (11830”.55) as the true sum of the six dis- tances, we find for the various plates the scale values contained in the following table. The value obtained for plate 21 depends upon five stars only, as Anon. 4 was lacking on that plate. Plate. Seale Value. 16 E. 28.0157 16 W. 28.0178 17 K. 28.0146 17 W. 28.0156 18 EK. 28.0141 18 W. 28.0147 - 19 K. 28.0117 19 W. 28.0127 20 E. 28.0113 20 W. 28.0122 74) 08 Be 28.0107 21 W. 28.0137 ZENO 28.0142 22 W. 28.0153 23 E. 28.0126 23 W. 28.0137 24 EH. 28.0059 24 W. 28.0031 25 H. 28.0063 25 W. 28.0070 Group of the Pleiades. yo Oak It is possible to make an approximate estimate of the probable errors of these scale values. According to ELxin the probable errors of his final adjusted star places are + 07.08 for either co- ordinate, while those of the proper motions (Yale—Konigsberg) are + 0”.20. But as we shall only use the proper motions during a period of twelve years (1885-1873), we can take + 0”.05 as the probable error of a proper motion. The probable error of the sum of six heliometer distances, reduced to 1873.0, may therefore be estimated as oe V6 Gear = (es) (k= = 'o".23- An examination of the RuUTHERFURD observation books shows that the average probable error of a distance measure is + 0”.05, accord- ing to the inter-agreement of the separate settings. The sum of six distances will therefore have the probable error = 5O50H/ O1>=.2.0 .15. Since the number of thousands in the sum of the six distances is 11.8, the probable error of the scale value will be ale as Meas ae eta) 1210. 102 Pel LCoo This estimate of the probable error does not include the effect of systematic errors of measurement due to imperfections of the photo- graphic images, or possible distortions of the film,* or incorrect division errors. It will be noticed in the table that the scale values for the Western impressions exhibit a very small but well-marked excess over those for the Eastern impressions. This may best be explained as a result of the methods used in measuring the plates; but the discussion of this and several other important points must form a part of the description of the measuring micrometer soon to be issued. There does not appear to be any marked connection between the scale values and the readings of the thermometer or focal micrometer, as given in the table at the end of I. * In the American Journal of Science and Arts, vol. iv, Dec. 1872, RuTHER- FURD showed that the distortion of his films during development was inappre- ciable. Annats N. Y. Acap. Sci., VI, March, 1892.—19 Pa Aas Rutherfurd Photographic Measures. VI. ZERO CORRECTIONS. THE first correction required by the position angles given in the observation books is one of + 270°. This makes them agree with the usual method of counting position angles from the North point towards the Hast. The correction is of course due to the use of the last impression of the central star as a starting point for position angle measurements on the plate. The further correction is then as follows :* Let v = the correction which must be added to all the observed position angles of any plate. x = precession to reduce position angles to 1873.0 (See IV.). y = refraction (x — p) for position angle 270° (See tables at end of III.). k — approximate scale value in seconds of arc = 28’.01. z = distance of last impression of the central star (See table at end of I.). § = declination of central star. Then v=tkztané—y3s. The following table contains the zero corrections computed by this formula for the various plates :+ * For a demonstration of the formula here given, see Astronomical Journal, 1891, No. 17, p. 131. + It is perhaps worth while to note that these zero vorrections do not include a certain special correction required by the position angles derived from the Western impressions. This special correction, which will be fully explained later (see VII.), might have been included in the zero corrections for the Western impressions, as it is a constant for each plate. But I have preferred to apply it directly to the final results, as will be seen in the next section. Group of the Pleiades. 273 TABLE OF ZERO CORRECTIONS IN POSITION ANGLE. Plate. Correction. 16 East 16 West 17 East 17 West — 18 East 18 West 19 Kast 19 West 20 East 20 West 21 East 21 West 22 East 22 West 23 East 23 West 24 Kast 24 West 25 East 25 West EMPIRICAL CORRECTIONS. When we compare the various values of any position angle with the mean of all, we find that certain systematic errors seem to attach to each plate. For instance, all the position angles of some particu- lar plate will exceed their mean values. This can only be ascribed to a systematic error in the zero reading of that plate. In fact, it would be perfectly proper to subtract from all the angles of any plate a constant quantity equal to the mean of the excesses of the various angles of that plate over their respective mean values. We might even derive such a correction from a selected number of special stars whose magnitudes were such as to ensure good photo- graphic images.* But I have preferred not to do this for the fol- lowing reasons: Let » = number of plates. = number of stars on each plate. * This process was employed by Goutp. Memoirs of the National Academy, vol. iv, third memoir, p. 184, and fourth memoir, p. 194. 274 Rutherfurd Photographic Measures. Py» Py, Py’, --- p;" = the position angle of the first star on the various plates. Do Po, Po’, --- P,” = the same for the next star, and so on. And put: I Dae Ds = a eee tee) I Po= 7 (Pi + Ps Sir pietate ae i) Then P,, P,,.... are the mean values of position angles which we obtain if we apply no systematic corrections. The correction for the first plate will be: Ry aE) es ea ee ee Ss and for the second plate: “(pst RP) eon = ees i ees s and so on for the other plates. Now if we introduce into these last expressions the values given above for P,, P,,... P,, we find that the sum of all the corrections is zero. It is therefore obvious that if we were to apply the corrections, we would get for the mean values of the position angles, P,, P,,....P,as before. Thus the final values are not changed by the proposed process.* But the inter-agreement of the separate values of any position angle might be very much improved by applying the corrections. This arises from the fact that the uncorrected position angles involve the error made in observing the star, as well as that belonging to the zero point, while a portion of the latter error would be practically re- moved by applying the corrections. If we compute the probable errors in the usual way, we shall get larger values than would result if the corrections were introduced. Investigation shows, however, that their introduction would diminish the probable errors by less than one-fifth; so that we are justified in omitting them altogether. * The sum of the corrections applied by Govip in his reduction (already referred to) of the Presepe plates is exactly zero. In the case of the Pleiades plates, the sum is —10” for the Eastern impressions, but for the Western it is —1/ 31’. This last may be due to a typographical error. Group of the Pleiades. 275 In the case of the distances it is also possible to deduce a sys- - tematic correction for each plate. But the result upon the mean of the measures is nil, as before. Let x and y be the coordinates of the central star in a system whose origin is at the corrected post- tion of the same, and whose axes of X and Y are directed toward the North and East. Then each measured distance requires the correction xcosp +t y sin p. If we let o, be the mean from all the plates of a measured dis- tance o, and put QS pata then every star on the plate yields an equation of the form xzcosp+ysnp=—d for determining 2 and y. Forming normal equatiens, and solving, we get: __ [sin? p] [d cos pj — $[sin 2p] [d sin p] = a[sin ap + [sin® p] [eos p] __ 3[sin 2p] [d cos p] — [cos’ p] [d sin p] Now if we put: oe = the sum of all the values of d for any particular star from all the plates, we shall have [D]=[+,—s]=o, consequently [fa cos ol [(P] cos o| = [[@ sin p]] = | [D] sin p] = and therefore [z]=o Ly] =o. The sum of all the systematic corrections for any particular star is then also zero: for | [xcosp +ysin p|—[#]cosp+[y]sinp=o Consequently the mean of all the measured values of « would not be changed by the application of the corrections. 276 Rutherfurd Photographic Measures. aT. RESULTS OF THE MEASURES, THE results of the several measures have been arranged in tabu- lar form at the end of the present section. The first column of the tables gives the number of the plate; the second contains the dis- tance, expressed in divisions of the glass scale of the micrometer. This quantity is given exactly as found in the observation books, before the application of any corrections whatever. The following column gives the distance, still in terms of the micrometer scale, but corrected for runs and division errors, according to section II. It is thus always possible to see the precise effect of the division error corrections and runs upon the result of the observation. The fourth column contains the final corrected distance in seconds of are. This quantity is obtained from the preceding column by using the scale values given in Section V., and applying corrections for refrac- tion (Section III.) and aberration (Section IV.). Moreover, the distances on the plate are really the tangents of the angular distances of the stars in the sky, and it has therefore been necessary to apply a further correction of * — is sin? 1”. This quantity has been taken, without interpolation, from the fol- lowing table: * See Astronomical Journal, No. 233, p. 131. Group of the Pleiades. 277 TABLE OF THE TANGENT CORRECTION. Dist. Corr. The fifth column contains the position angle, exactly as given ia the observation books, where it is referred to the last image of the central star as a zero point. The sixth column gives the final corrected value of the position angle. This is obtained from the previous column by applying first a correction of +270°, so that the angles may he counted in the usual way from the north point towards the point of greatest right ascension. ‘The remaining cor- rections are the zero correction (Section VI.), and the refraction correction (Section III.). In addition to these, the Western im- pressions need a further correction which is not necessary for the Eastern impressions. When the plates were measured, the Hastern impression of the central star was centred upon the position circle of the micrometer. The impressions were then separately measured, using both the longitudinal motion of the micrometer, and that at right angles to it. It follows that the position angles for the Western impressions have all been referred to the same zero as those of the Hastern impressions. They must therefore all be cor- rected by the amount that position angle 270° changes when the point at which it is measured moves along the trail a distance equal to the distance between the two impressions of the central star. In 278 Rutherfurd Photographic Measures. other words, if we imagine a line drawn upon the plate from the Eastern impression of the central star, in the direction of position angle 270°, then another line, drawn parallel to the first through the Western impression of the central star, will not be directed towards position angle 270°, but will make a small angle with that direction. All the Western position angles of any plate will need to be cor- rected by the amount of this angle. The correction, in seconds of are, is* — d tan 6, © where d is the distance of the two impressions of the central star, in seconds of arc, and 6 the declination of the central star. In this way the corrections required by the Western position angles upon the several plates have been found to be: Plate. Corrrection. 16 —17!! 17 —I9 18 2s 19 —3I eS mile - wayOe 22 rae 25 —42 24 a Oo 28 —56 Mean — 34.5 It is perhaps of interest to compare the Eastern position angles with the Western, before the above correction has been applied. This has been done for the following nine stars, which happened to be the first ones finally reduced. After applying all the other cor- rections, the direct differences (Hast minus West) were taken for each star. The mean for each star from all the plates is given here. * This correction is of the same form as that given in Astronomical Journal, No. 233, p- 130, Eq. (7). | Group of the Pleiades. 279 Star. E. — W. Pleione —30!! Atlas —40 Merope —32 Asterope —30 Maia —20 Anon. 1 —30 Taygeta —50 Electra —26 Celeno —40 Mean — 33! The close agreement of this mean with that found above, affords a striking confirmation of the necessity of the correction just dis- cussed, nor does it seem necessary to compare further the Eastern and Western impressions. The omission of the correction would result in making the final adopted mean position angles of all stars observed on the ten plates too great by 17”. If the distance between the two impressions of the central star were quite large, the effect might be greatly increased. The tables also give at the foot the final adopted means of the distances and position angles, together with their probable errors as derived from the internal agreement of the separate values. These probable errors have been computed from the sums of the residuals, not the sums of squares. For the position angles, the probable error is first given in seconds, and followed by the equivalent dis- placement in arc of a great circle, corresponding to the distance of the star. The final means will be assembled in another table in the next section. . 16 East 16 West 17 East 17 West 18 East 18 West 19 Kast 1 19 West 20 East 20 West 21 East 21 West 22 East 1 22 West 23 Hast 23 West 24 East 24 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 1L1-3272 I11.3232 111.3416 T11.3348 111.3568 III.3505 111.2970 111.3223 EET 3304 I1I.3291 IL1.3184 II 1.3235 111.3418 111.3208 T11.3174 III.3151 111.3360 I1I.3270 IIT. 3632 111.3564 Means Observed Distance. 123.0285 123.0308 123.0284 123.0265 123.0587 123.0541 123.0581 123.0569 123.0924 123.0790 123.0647 123.0472 123.0640 123.0707 123.0488 123.0452 123.0837 123.0973 123.0899 123.0649 Means Corrected Distance. Seale. IIT. 3382 IUl. 3343 111.3526 I11.3460 111.3678 111.3589 111.3079 111.3316 IIT. 3444 111.3381 I11.3204 TI1.3325 111.3528 ILI. 3308 111.3284 I11.5251 111.3470 T11.3346 111.3742 I11.3675 Are. “l 3119.73 3119.88 3120.11 3120.04 3120.25 3120.08 3119.86 3120.55 3120. 39 3120.26 3119.63 3120.01 3120.52 3119.99 3119.52 3119.52 3120.37 3120.15 3120.47 3120.32 Ml Ml 3120.08 0.05 Corrected Distance. Seale. 123.0392 123.0398 123.0390 123-0355 123.0095 123.0605 123.0689 123.0605 123.1032 123.0827 123.0736 123.0509 123.0748 123.0745 123.0595 123.0490 123.0945 123.1010 123.1007 123.0676 Are, “l 3447-79 3448.09 3447.86 3447-93 3448.12 3447-95 3448.40 3448.26 3449-19 3448.72 3448.22 3447-94 3448.63 3448.75 3447-97 3447.81 3448.35 3448.77 3448.40 3447-54 Md “/ 3448.23 0.07 Observed Pos. Angle. Corrected Pos. Angle. 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286° 52! 26// 9 53 17 39 26 14 286 53 28. +5"(-0.07) Observed Pos. Angle. 330° 11! 8// 33° ~339 33° 33° 330 B32 33° 33° s)he) 330 33° 33°. 33° 33° 339 33° 339 330 33° ° / Mf “ 7] 240 21 48 +6 (£0.10) Corrected. Pos. Angle. 240° 20/ 46!’ 240 240 240 240 240 240 240 240 240 240 240 240 | 240 240 240 240 240 240 240 16 East 1 16 West 1 17 Kast 17 West 18 East 18 West I9 Kast 19 West 20 Kast 20 West 21 East 21 West 22 Kast 22 West 24 East 24 West 25 Hast 25 West f 16 Kast | 16 West 5:17 East 17 West 18 East | 18 West 21 Kast f 21 West 23 Kast 23 West 25 East | 25 West Observed Distance. 113.0906 113.0784 113.1058 113.0921 113.1038 113.1091 113.0570 113.0694 113 9749 113.0756 113.0895 113.0757 113.0833 113.0890 113.0986 113.0914 113.1058 113.0871 Means Observed Distance. 86.7118 86.7152 86.7038 86.7189 86.7411 86.7467 86.7041 86.7168 86.7075 86.7307 86.7627 86.7468 Means Group of the Pleiades. Corrected Distance. Seale. 113. 1001 113.0888 113.1153 113.1025 113.1148 113.1187 113.0679 113.0797 113.0859 113.0860 113.1005 113.0861 113-0943 113.0983 113.1096 113.1018 113.1168 113.0974 Are. 3169.04 3168.98 3169.41 3169.16 3169.19 3169.39 Blogg? 3169.65 3169.27 3169.30 3169.30 3169.20 3169.36 3169.56 3169.87 3169.78 3169.35 3168.84 UG Md 3169.33 0.04 Corrected Distance. Seale. 86.7244 86.7270 86.7163 86.7298 86.7537 86.7521 86.7166 86.7293 86.7201 86.7421 86.7754 86.7579 Are. 2430.19 2439.47 2429.99 2430.46 2430.71 2430.74 2429.91 2430.50 2429.99 2430.70 2431.23 2430.75 4d 4d 2430.47 0.08 Observed Pos. Angle. 29° 24/ 18! 13 15 7 50 3) 20 43 7 26 15 18 55 3 Observed Pos. Angle. o° 44! 16// 44 15 45 10 45 33 47 6 47 43 46 42 47 8 47 43 48 43 46 53 46 45 Oo0000 000000 281 Corrected Pos. Angle. 299° 33/53” 299 299 299 299 299 299 299 299 299 299 299 299 299 299 299 299 299 ° U dé Md UC 299 34 39 +5 (£0.07) Corrected Pos. Angle. 270° 53! 48! 270 270 270 270 270 270 270 270 270 270 270 fo} / 4d 4d 4d 270 54 36 +6 (+0.07) 16 East 16 West 17 East 17 West 18 East 18 West 19 Kast 19 West 20 Kast 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 East 24 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 92.7347 92.7375 92.7423 92.7400 92.7488 92.7529 92.7061 92.7000 92.7247 92.7146 92.7273 92.7190 92.7340 92.7355 92.7193 92.7228 92.7201 92.7456 92.7416 92.9413 Corrected Distance. 92.7537 Observed Pos. Angle. 22° ahagit 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 32 Wm BAIN DU OV QU Gn OU 00 COUItI OH NN Corrected Pos. Angle. 292° 12/ ‘3! 292 292 292 292 292 292 292 292 292 292 292 292 292 292 292 292 292 292 292 Means 2598.99 +0.04 292-12 50. +5 (40.06) 6. CELZANO. Observed Distance. 77-8507 77-8423 77.8502 77-8433 77-8490 77-8491 77-8235 77-8137 77-8313 77.8241 77.8388 77-8349 77-8489 77-8401 77-8417 77-8413 77,8291 77-8314 77.8002 77-8424 Means Corrected Distance. Seale. 77.8639 77-8535 77.8635 77-8545 77.8607 77-8598 77-8367 77-8239 77-8445 77-8359 77.8521 77.8461 77.8606 77-8513 77-8549 77-8519 77,8408 77.8416 77-8719 77.8538 Are. 2181.76 2181.84 2181.67 2181.56 2181.58 2181.80 2181.44 2181.65 2181.44 2181.64 2181.66 2182.04 2181.83 2181.65 2181.64 2181.47 2181.59 2181.90 2181.42 Ut “ 2181.67 +0.03 2181.87 Observed Pos. Angle. 15 Gat Corrected Pos. Angle. 286° 4! 25// 286 4 51 286 I 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 286 ANT NI NAANHDADWMIUN AAD OM f Un On oo ° U “ Md ‘d 286 6 5 6 (0.06) Observed Distance. Group of the Pleiades. ELECTRA. Corrected Distance. Scale. | 16 East 16 West 17 East 17 West 18 East 1 18 West | 19 East | 19 West 20 East | 20 West 21 East 21 West 22 East 22 West 23 East 23 West | 24 Kast 24 West 25 Hast 25 West 16 East 16 West 17 East 17 West 18 East 18 West 72-5551 72.5284 5562 -5437 .56011 . 5067 5245 5238 -5399 +5277 .5428 5328 5383 5324 5402 5308 .5410 5375 5464 Observed Distance. 131.2746 131.2990 131.2838 131.3011 131.2878 130.3113 Means 72.5679 72.5405 72.5691 72.5544 72.5740 72.5779 72-5372 72.5346 72.5527 72-5394 72.5550 72-5455 72.5511 72-5441 72-5529 72.5424 72.5538 72.5477 72-5593 72.5527 Are. Observed Pos. Angle. 2033.51 2032.91 2033.58 2033.25 ae oon} 2033-59 2033.04 2032.99 2033.22 2032.87 2033.12 2033.03 2033.17 2033803 2033.03 2032.81 2033.08 2033.02 2032.94 2032.76 UU “ 2033.12 0.04 e Corrected Distance. Seale. 131.2786 131.2990 131.2879 131.3011 131.2918 131.3138 3679.02 B59) ON 3 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359 3 NY QOvorimM SB uu Bb BM B WW wD 283 Corrected Pos. Angle. 269° 269 269 269 269 269 269 269 269 269 269 269 269 269 269 269 269 269 269 269 9/45" | 10 18 Io 9 II II 269, 11 28. 408) (0.08) Observed Pos. Angle. Gogo 1855/7 393 19 40 303 18 46 SOE ey 303, 122 20 303 23 8 [e) Ul Vt 213209 31 Corrected Pos. Angle. ° 2137 213 203 213 213 213 28! 43! 20) 24. 28 44 29 18 30 18 30 36 | 16 East i 16 West } 17 East fh 17 West | 18 East | 18 West f Io East 19 West ~f 20 East 20 West 21 East | 21 West 22 East | 22 West 23 East 1 23 West 24 East 24 West 25 East 25 West 16 East 16 West 17 Kast 17 West 18 Kast 18 West | 19 Kast | 19 West . f 20 East 1 20 West 22 Kast 22 West 23 East 23 West 24 East 24 West 25 Hast Rutherfurd Photographic Measures. Observed Distance. 68.3248 68.3129 68.3261 68.3256 68.3337 68.3345 68.3200 68.3015 68.3097 68.3130 68. 3232 68.3205 68.3337 68.3163 . 68.3268 68.3152 68.3262 68.3407 68.3443 68.3397 Means Observed Distance. 85.0357 85.0412 85.0282 85 0303 85.0639 85.0466 85.0449 85.0527 85.0649 85.0628 85.0640 85.0461 85.0479 85.0550 85.0880 85.0857 85.0716 85.0756 Means Corrected Distance. Seale, 68.3366 68.3267 68.3379 68. 3394 68.3455 68.3445 68.3318 68.3123 68.3215 68.3238 68.3350 68.3313 68.3455 68.3281 68. 3386 68.3270 68.3380 68.3507 68.3561 68.3511 { Are. 1914.90 1914.79 1914.92 1915.03 1914.95 1914.97 1915.37 1914.83 1914.77 1914.87 1914.93 1915.02 1915-35 1914.94 1914.98 1914.73 1915.15 1915.60 1915.28 1915.16 4 Md 1915.03 0.04 Corrected Distance. Seale. 85 0480 85.0519 85.0404 85.0416 85.0763 85.0578 85 0572 85.0634 85.0773 85.0727 85 0764 85.0558 85.0603 85 0648 85.1004 85.0964 85.0840 85.0864 Are. 2383.32 2383.63 2383.18 2383.32 2383.76 2383 30 2383.30 2383.57 2383.79 2383.75 2383.98 2383.49 2383.38 2383.59 2383.98 2384.04 2383.49 2383.62 238 3.58 40.04 Observed Pos. Angle. 15° 22! 46!! Corrected Pos. Angle. 285° 32/5 235032 2855) 285 285 285 285 285 285 285 285 285 285 285 285 285 285 285 285 285 gi Oo 285. 33 a +5" (-0.08) Observed Pos. Angle. 320 320 320 320 320 320 320 320 320 320 320 320 320 320 320 320 fo) / fl dd i 23049 47 6 (£0:07)"| 320° 39! 37! ~320 13 48 10 42 28 43 26 Corrected Pos. Angle. 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230° 49! 19! Group of the Pleiades. 285 18 m. Corrected Distance. Corrected Pos. Angle. Observed Pos. Angle. Observed Distance. 16 East 16 West | 17 East 17 West 18 East 1 18 West | 19 East Ig West | 20 East 20 West 1 21 Kast | 21 West 22 East 22 West 23 East 23 West 24 Kast 24 West 1 25 Kast 25 West 12. 16 East 16 West 17 Kast 17 West 18 East 18 West |. 19 East 19 West 20 Kast 20 West 21 Kast ‘21 West 22 East 22 West 23 Hast 23 West 24 East 24 West 25 East 25 West 112.7614 112.7654 112.7688 112.7608 112.7810 112.7764 112.7156 112.7280 112.7352 112.7376 112.7440 112.7544 112.7447 112.7465 (12.7582 112.7503 112.7517 112.7501 112.7612 112.7609 Means Observed Distance. 77.2300 77.2181 77-235! 77-2205 77.2402 77-2371 77-1999 77-1916 77.2169 77-2013 77,2220 77.2115 77-2213 77.2240 77-2355 77.2287 Cio), AICO) 77.2088 77-2407 77.2167 Means 112.7732 Li2.77 52 112.7806 112.7719 112.7928 112.7857 112.7273 12,9370 112.7470 112.7471 112.7558 112.7640 112.7565 112.7565 112.7700 112.7603 112.7635 112.7597 112.7730 112.7705 3159.87 0.03 TAYGETA. Corrected Distance, Seale. 77-2417 77-2300 77.2468 77-2324 77 2520 77-2479 77-2131 77.2016 77.2280 77.2123 772336 77.2225 77-2329 77.2356 77-2473 77.2388 77.2321 77.2198 77+2525 77-2274 Are, 21 64.38 2164.21 2164.46 2164 13 - 2164.50 2164.43 2164.40 2164.08 2164.45 2164.01 2164. 34 2164.22 2164.47 2164.61 2164.65 2164.48 2164.52 2164.24 2164.60 2163.91 “ “a 2164.35 =+0.03 Observed Pos. Angle, 324 324 324 324 324 324 324. 324 324 324 324 324 324 _ 324 324 324 324 324 324 324 ta 25 324 55 32 -£5 (-£0.07) Corrected Pos. Angle. 395 395 305 305 395 395 305 305 395 305 395 305 305 305 305 395 395 395 3) BO5 305. IL 30 +6. ie} 9! 42" 16 50 8 13 (+£0.07) 286 16 East 16 West 17 East 17 West 22 Kast 22 West Rutherfurd Photographic Measures. Observed. Distance. 118.8946 118.9171 118.8992 118.9120 118.8965 118.9035 Corrected Distance. Seale, 118.9082 118.9287 118.9111 118.9236 118.9084. 118.9132 Are. 3331.74 3332.56 3331.69 3332.16 3332-23 3332-47 Observed Pos. Angle. 59° 48! 22! 59 48 28 59 48 48 59 49 Io 59 52 53 59 52 31 i‘ Corrected Pos. Angle. 329° 329 329 329 329 3-9 53/ Su 57 58 58 39 58 43 59 39 58 26 Means 33 32.14 329. 58 34. Corrected Distance. Corrected Pos. Angle. Observed Pos. Angle. Observed Distance. 16 East 16 West 17 East - 17 West 18 East 18 West 22 Kast 22 West 15. Plate. 16 East 16 West 17 East 17 West 18 East 18 West 19 East 19 West 130.5456 130.5845 130.5423 130.5544 130.5540 130.5654 130.5721 130.5866 Means Observed Distance. 57.0918 57.0932 57.0905 57.0880 57.1101 57.1076 57-0927 57-0950 Seale, 130.5499 130.5868 130. 5466 130.5567 130.5582 130.5701 130.5764 130.5873 3658.58 ANONYMA Tf. Seale, 57.1010 57-1023 57.1008 57-0979 57.1203 57-1161 57.1029 57-1033 Corrected Distance. 295° 34! 58” 35 6 34 52 35, 30 37 42 38 50 295 38 47 295 295 295 295 295 2957, 3905S fo} é Mt 205 45 21 Observed Pos. An gle. 348° 46! 53/” 348 47 30 348 47 50 348 47 3 348 50 0 348 50 50 348 51 56 348 52 36 205° 205 205 205 205 205 205 205 44! 48! 44 41 44 53 45 14 45 35 46 19 45 27 45 47 Corrected. Pos. Angle. 258 258 258 258 258 258 258 258° 56/ 26// 56 47 57 24 56 18 57.750 58 16 57 20 57 29 15.— Continued. Observed Distance. 57-0982 57-0902 57-0989 57-0971 Group of the Pleiades. Corrected Distance. Seale. 57-1084 57-9979 57.1092 57-1048 Are. 1600. 36 1600.09 1600.27 1600.29 Observed Pos. Angle. 348 348 348 348 Corrected Pos. Angle. 258 258 258 258 1600.25 | 348 258 1600.62 | 348 258 1600.46 | 348 258 1600.36 | 348 258 1600.27 | 348 258 1600.41 348 258 1600.31 | 348 258 1600.46 | 348 258 57-1037 57-1147 57-1158 57.1101 57.1122 57.1126 57-1197 57-1244 UU Us 1600.33 0.02 57-0934 57.1060 57.1066 57.1014 57.1020 57-1053 57-1094 57-1153 Means 253° 57 1s. +6 (-0.04) ANONYMA 2. 16. Corrected Distance. r : Observed Corrected Pos. Angle. Pos. Angle. Observed Distance. Seale. Are. 16 East 16 West 17 East 17 West 18 Kast 18 West. 19 East 19 West 20 East 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 East 24 West 25 East f 25 West 1919.70 | 39° 53/25! | 310° EQ1G. 57" | 739 310 1919.53 39 310 1919.59 39 Bo) 1919.59 39 Be) 1919.71 39 310 1919.40 40 310 1919.15 40 310 1919.42 39 310 1918.88 39 310 1919.17 39 a6 1919.32 310 1919.51 310 1920.01 310 1919.13 310 1919.37 310 1919.30 310 1919.99 310 1919.34 310 3 34 1919.09 310 4 38 “ ‘4 1919.44 0.05 68.5095 68.4999 68.5054 68.5055 68.5103 68.5131 68.4732 68.4642 68.4862 68.4658 68.4846 68.4839 68.4917 68.5074 68.4855 68.4918 68.4830 68.5050 68.4993 68.4898 68.4973 68.4863 68.4932 68.4913 68.4981 68.5006 68.4610 68.4539 68.4740 68.4546 68.4725 68.47 36 68.4795 68.4976 68.4733 68.4814 68.4709 68.4946 68.4871 68.4790 Means PUBRRPARWAWAAARA RO Md Md “d I2 +5 (0.05) Annats N. Y. Acap. Sc1., VI, March, 1892.—20 Rutherfurd Photographic Measures. Observed Distance. ANONYMA 4. Corrected Distance. 16 East 16 West 17 East 17 West 18 East 18 West Ig Kast 19 West 20 Kast 20 West 22 East 22 West 23 East 23 West 24 East 24 West 25 East 25 West 18. 16 East 16 West 17 Kast 17 West 57-7338 57-7184 57-7321 57-7421 57-7398 57-7372 57-7090 57-7137 57-7219 57-7145 57-7197 57-7147 57-7305 57-7328 57-7188 57-7225 57-7301 57-7307 Means Observed Distance. Seale. 57-7446 57-7279 57-7429 57-7507 57-7500 57-7458 57-7197 57-7224 BT 327 57-7223 57-7305 57-7238 57-7413 57-7421 57-7296 57-7312 57-7469 57-7405 Are. 1618.10 1617.76 1618.02 1618.29 1618.13 1618.03 1618.00 1618.07 1618.08 1617.80 1617.94 1617.80 1618.08 1618.15 1617.97 1618.06 1618.08 1617.91 4d 4/ 1618.02 -+0.02 ANONYMA 5. Corrected Distance. Seale. Observed Pos. Angle. 28° 29/ 46" Corrected Pos. Angle. 298° 30/ 21// 298 4 298 34 208 26 298 298 298 208 208 208 298 298 ; 298 298 298 298 298 298 298 39 55-5 (-£0.04) Observed Pos. Angle. 82.0254 82.0180 82.0260 82.0413 Means 82.0394 82.0316 82.0399 82.0546 2 298.6 7 52° 20/ 20! 52 25 50 “1522120508 Bo 137 lem 322 35 56 Corrected Pos. Angle. 322° 36!) 3// 322 35 17 322 35 54 322 36 20 ~f 19. 16 East 16 West 17 East 17 West 18 East 18 West A 20 Kast 20 West 22 East 22 West 23 Hast 23 West 25 East 25 West 16 East 16 West 17 East 17 West 18 Kast 18 West 19 Kast 19 West 20 Kast 20 West 21 Kast 2t West ; 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 East 25 West Observed. Distance. 53-4492 53-4440 53-4549 53-4314 53-4533 53 4632 53-4252 53-4322 53-4384 53.4308 53.4227 * §3-4315 53-4567 53-4641 Means Observed Distance. 55-1074 55.0784 55.0896 55-0745 55-0836 55-0923 55.0721 55-0668 55-0790 55-0629 55.0696 55-0746 55.0880 55-0887 55.0808 55.0778 55-0757 55-0819 55-0864 55-0746 Means | Group of the Pleiades. ANONYMA 6. Corrected Distance. Seale. 53-4597 53-4547 53-4054 53-4420 53-4637 53-4714 53-4356 53-4391 53-4489 53-4402 53-4331 53-4409 53-4672 53-4735 Are. 1498.02 1498.00 1498.16 1497.56 1498.00 1498.25 1497.62 1497.73 1497-93 1497.73 1497.34 1497.60 1498.14 1498. 33 1497.89 ”+-0.06 Corrected Distance. Seale. 55.1163 55-0880 55-0996 55-0841 55-0936 55.1019 55.0821 55-0753 55.0890 55.0713 55.0796 55.0830 55-0980 55-0971 55-0998 55-0862 55-0857 55-0903 55-0964 55.0816 Are. Observed Pos. Angle. 289 Corrected Pos. Angle. 293° 55’ 42!/ 293 293 293 293 293 293 293 293 293 293 14 293 16 293 26 | 293 20 293 55 43 9 (0.06) Observed Pos. Angle. 1544.43 1543-75 1543-93 1543-54 1543.07 1543-94 1544.05 1543.87 1543-97 1543-50 1543-53 1543.76 1544.16 1544.18 1544.05 1543-7! 1543.86 1544.05 1543.81 1543-41 I 543.36 +0.04 BSc ona! Oie35 fe) 1 Ke) 12 Corrected Pos. Angle. 305° 18/ 18// 305, 18 55 | 305 19 55 305 20 305 20 395 19 305 22 305 21 205" 20 2057 29) 305 21 305 20 305 21 Box 20 305 21 305 21 Bo2' 22 305 21 305 21 205) 25 (oe) é Vd Ud td i 305 20 47 -KI0 (40.07) 290 Rutherfurd Photographic Measures. Corrected Distance. 21. Observed Plate. Distance. 16 East 132.4486 16 West | 132.4486 17 East 132.4412 17 West | 132.4528 18 East 132.4758 18 West | 132.4540 Ig East 132.4753 Ig West | 132.4901 20 Kast 132.4794 20 West | 132.4816 22 East | 132.4611 22 West | 132.4668 24 Kast | 132.4822 24 West | 132.4969 25 East | 132.4996 25 West | 132.4985 Means Zee Observed Distance. Scale. 132.4514 132.4514 132.4440 132.453! 132.4786 132.4543 132.478! 132.4906 132.4823 132.4845 132.4640 132.4697 132.4851 132.4974 132.5013 132.4990 Are. 3711.39 3711.68 3711.19 3711.60 SETS 3711.14 3711.79 3712.26 3711.82 3712.00 3711.66 S115. 97 S710, 13 3711.76 37 1E-59 B71 1.02 371 1.6 5 “£0.05 ANONYMA 7. Corrected Distance. Seale. 1 16 East f 10 West 17 East 17 West 18 East 18 West Ig East 19 West 20 Kast 20 West § 21 Kast 21 West 22 East 1 22 West | 23 East 23 West 24 Kast 24 West 25 East y 25 West 44.7874 44.8029 44.7896 44.7827 44.7960 44.8013 44.7919 44.8011 44.7963 44.7940 44.8015 44.8001 44.8043 44.8116 44.8017 44.8064 44.8035 44.8180 44.8193 44.8106 Means 44-7995 44.8132 44.8018 44.7929 44.8082 44.8121 44.8040 44.8099 44.8084 44.8044 44 8337 44.8104 44.8164 44.8201 44.8139 44.8171 44.8157 44.8269 44.8303 44.8187 Are. 1255-44 1255.94 1255-53 1255-33 1255.50 1255.65 1255.65 1255.86 1255.67 1255.58 1255.72 1255.76 1255-93 1256.07 1255.76 1255.90 1255.72 1256.10 1256.01 1255.70 125 5.74 ++0.03 Observed Pos. Angle. 289° 13/43” 289 289 289 289 289 289 289 289 289 289 289 289 289 289 289 13 48 Corrected Pos. Angle. 199 199 199 t99 199 199 199 199 199 199 199 199 199 199 199 23 199° 23/ 34!| 24 i 19 23 (eo) 4 di di “é 199 24 33 +8 (0.13) Observed Pos. Angle. 340 346 346 346 _ 346 346 346 346 346 346 346 346 346 346 346 346 346 346 346 256. 37 16. +6 (-40.04) 346° 27’ 7” 8 Corrected Pos. Angle. 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 2569 36! 41’ 23. 1 16 East 16 West 17 East 17 West " 18 East f 18 West Ig East i 19 West | 20 Kast 20 West 21 East 21 West | 22 Kast 1 22 West 23 Hast 23 West 24 East 7 24 West 25 Hast 25 West 24. 16 East 16 West 17 East 17 West 18 East 18 West 19 East 19 West 20 East 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 East 24 West 25 Hast 25 West Observed Distance. 70.3710 70. 3088 70. 3634 70. 3671 79-3744 70. 3626 70. 3383 79-3351 79. 3505 70. 3546 70.3585 70.3564 70. 3589 70.3528 79. 3633 79.3578 70.3510 70.3500 70.3721 70. 3728 Means Observed Distance. 65.1849 65.1698 65.1846 65.1762 65.1809 65.1751 65.1565 65.1461 65.1535, 65.1611 65.1623 65.1649 65.1661 65.1660 65.1704 65.1634 65.1548 65.1715 65.1792 65.1821 Means Group of the Pleiades. 21 k, ASTEROPE. Corrected Distance. Seale. 70. 3828 70. 3800 79. 3752 79. 3796 70. 3862 79-3755 70. 3500 70.3465 70. 3622 70. 3652 70.3702 70.3670 70.3706 70. 3634 79. 3750 70. 3684 70.3627 70. 3614 70.3840 70.3811 Are. 1972.19 1972.26 1971.91 1972.09 1972.15 1971.89 1971.94 1971.84 1971.96 1972.08 1971.98 1972.08 1972.17 1972.02 1972.09 1971.97 1971.91 1971.96 1972.10 1972.05 Md Ug 1972.03 0.02 22 U. Corrected Distance. Scale. 65.1945 65.1792 65.1942 65.1860 | 65.1915 65.1854 65.1661 65.1564 65.1631 65.1705 65.1719 65-1747 65.1757 65.1746 65.1800 65.1720 65 1654 65.1809 65.1888 65.1907 Are. 1826.82 1826.53 1826.74 1826.58 1826.61 1826.48 1826.64 1826.36 1826.27 1826.49 1826.32 1826.57 1826.57 1826.59 1826.52 1826.35 1826.26 1826.76 1826.55 1826.62 1826 53 ++0.02 Observed Pos. Angle. 24! au 24 24 24. 27 27 Observed Pos. Angle. 28x at 291 Corrected Pos. Angle. 322° 33/457] 322 29 | 322) 33°.57 322 34 18 322 12 322 322 322 322 322 322 B22 222 322 322 322 322 B22 322 322 Corrected. Pos. Angle, 323° 37! 56” 323 3 323 S5) 323 323 323 323 323 323 323 323 323 323 323 aa0 325 Bye) 373 323 fo) é dé 4/ fi 323 39 6 +6 (40.05) 16 East 16 West 1 17 East 1 17 West 1 18 East 1 18 West Ig East 1 19 West 20 East 20 West f 21 Kast 1 21 West } 22 Kast 1 22 West 23 East 23 West 24 East 24 West 25 Kast R 25 West 26. 16 Kast | 16 West 17 East 17 West 18 Kast 18 West f 19 Kast 19 West 20 Kast 20 West 21 East 7 21 West 22 Hast ; 22 West 23 Hast 23 West f 24 East 24 West 25 Hast 25 West Rutherfurd Photographic Measures. Observed Distance. 34-3838 34-3845 34-3950 34-3981 34-3991 34-3945 34-3769 34-3604. 34-3918 34-3813 34-3841 34-3877 34-3833 34-3785 34-3779 34-3924 34-3873 34-3852 34-4129 34-3749 Means Observed Distance, 33-0912 , 33-1294 33°1379 33-1387 33-1433 33.1345 33-1244 33.1206 33-1363 33 1239 33-1304 33:1419 33-1354 33-1310 Baise) 33-1344 33°1247 33-1350 33-1471 33.1281 Means ANONYMA 8. Corrected Distance. Seale. 34-3949 34-3958 34.4068 34-4083 34-4103 34-4041 34.3880 34-3706 34.4029 34-3903 34-3953 34-3968 34-3944 34-3885 34-3890 34-4025 34-3984 34-3951 34-4241 34.3846 Are. 963.82 963.92 964.14 964.22 964.15 963.99 963.93 903.44 964.18 963.85 963.88 9604.00 963.91 963.78 963.66 964.08 964.03 963.98 964.55 963.46 963.95 0.04 ANONYMA 9. Corrected Distance. Seale. — . 1012 .1403 .148L .1496 -1553 -1445 .1363 . 1300 . 1464 1327, .1424 .1508 -1473 33.1408 33-1458 33-1443 33.1366 33-1445 33-1591 33-1374 Are. 927-57 928.75 928.88 928.95 928.08 928.70 928.85 928.67 928.97 928.61 928.79 929.08 928.96 928.80 928.83 928.82 928.67 928.94 929.11 928.51 928.77 +0.04 Observed Pos. Angle. Corrected Pos. Angle. 16° 27/ 18/!|- 286°265 Iv" 2ST 286 12 28072 286 33 27 AI 286 53 4 28 58 286 50 30 286 31 | BVI es (0). 286 6 32 286 4!I 28 286 44 30 286 36 34 29 286 43 29 286 25 4 30 286 18 30 286 42 29 286 Ba 29 286 15 31 286 59 a3 286 24 29 286 24 30 286 37 36 ARG 37, g +7 (-0.04) Observed Pos. Angle. Corrected Pos. Angle. 15° 50/41” | 286° of 13// 48 | 285 59 3 3 286 0 34 16 286 o 28 285 286 286 285 285 285 285 285 285 285 285 285 285 285 286 286 (eo) 4 4d 4/ “i fy 285 59 42 +7 (0.04) | 16 East 16 West 17 East 17 West 18 East | 18 West 19 East 1g West | 20 East 20 West | 21 Hast | 21 West 22 Kast 22 West 23 East 23 West 24 East 24 West 25 East #25 West 28. 16 East 16 West 17 East 17 West 18 East 18 West 19 East 19 West 20 East 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 East 25 West Observed Distance. 36.9986 37-0043 37.0052 36.9951 37:0017 37.0046 36.9837 36.9906 36.9915 36.9815 36.9766 36.9738 36.9861 36.9771 36.9824 36.9791 36.9854 36.9867 » 36.9916 36.9889 Means Observed Distance. 31.7206 - 31.7169 31.7444 31-7342 SES7335 31.7388 31.7173 31.7126 31.7239 31.7210 31.7314 31.7204 31.7240 31.7254 31.7344 31.7336 31.7193 31.7297 31.7369 31.7239 Means Group of the Pleiades. MEROPE. Corrected Distance. Seale. 37.0107 37-0143 37-0173 37.0051 37.0138 37.0146 36.9958 36.9990 37.0036 36.9907 36.9886 36.9830 36.9982 36.9870 36.9945 36.9882 36.9975 36.9951 37-0037 36.9987 Are. Observed Pos. Angle. 293 Corrected Pos. Angle. 1037.20 1037-39 1037.41 1037.12 1037.13 1037.18 1036.67 1036.80 1036.86 1036.53 1036.41 1036.35 1036.79 1036.52 1036.63 1036.49 1036.49 1036.50 1036. 64 1036.53 10 36.78 +0.06 ANONYMA 10. Corrected Distance. Seale. 31.7424 31.7299 31.7572 31.7455 31.7463 31.7484 31.7300 31.7225 31.7366 31 7297 31.7442 31.7201 31.7368 31.7356 31 7472 31.7424 31.7320 31.7400 31 7497 31.7341 Are, 889.48 889.20 889.87 889.57 889.52 889.60 889.46 889.25 889.49 889.31 889.60 889.26 . 889.45 889.45 889.65 889.55 889.35 889.61 889.64 889. 21 889.48 0.0 3 323° 32! 28// 323 323 323 323 323 323 323 323 323 323 323 21 233° 233 233 233 233 233 233 233 233 233 233 233 233 233 233 233 233 233 233 233 / ae +9 (£0.06) i Observed Pos. Angle. 33° 24! 53/” Corrected Pos. Angle. 303° 34/ 29” 303 34 13 203) 300 3 303 35 37 303 34 48 303 34 40 303 34 38 303 14 303 22, 303 ' 5 303 34 393 303 303 303 303 303 303 303 303 fo) 4 dd 4/ dd 303) 34 454), 25; (£0103) 294 16 East 16 West 17 Kast 17 West 18 East 18 West 19 Kast 19 West 20 East 20 West 21 East 21 West 22 Kast 22 West 23 Hast 23 West 24 East 24 West 25 Hast 25 West 30. Plate. 16 East 16 West 17 East 17 West 18 East 18 West 19 Hast 19 West | 21 East 1 21 West 1 22 Hast 22 West 23 Hast 23 West 25 Hast 25 West Rutherfurd Photographic Measures. Observed Distance. 67.2474 67.2431 67.2436 67.2446 67.2588 67.2529 67.2624 67.2628 67 2664 67.2627 67.2559 67.2616 67.2622 67.2614 67.2495 67.2506 67.2689 67.2740 67.2807 67.2772 Means Observed Distance. 20.4379 20.4345 20.4424 20.4427 20.4487 20.4476 20.4348 20.4352 20.4360 20.4469 20.4519 20.4414 20.4402 20.4365 20 4525 20.4320 Means Corrected Distance. Seale. 67.2578 67.2546 67.2539 67.2561 67.2692 67.2636 67.2728 . 67.2735 67.2768 67.2741 67.2663 67.2730 67.2726 67.2734 67.2599 67.2620 67.2793 67.2848 67.2912 67.2892 Are. 1884.77 1884.83 1884.66 1884.81 1884.87 1884.77 1885.01 1885.09 1885.08 1885.06 1884.74 1885.12 1885.13 1885.23 1884.67 1884.81 1884.76 1885.05 - 1885.09 1885.09 I 884.9 3 +0.0 3 ANONYMA If. Corrected Distance. Seale. 20.4468 20.4441 20.4512 20.4515 20.4576 20.4557 20.4436 20.4433 20.4449 20.4559 20.4607 20.4506 20.4491 20.4465 20.4613 20.4404 Are. 572.99 572.96 573-11 573-15 573-21 573-18 572.97 572-97 572.91 573-27 573-41 573-14 573-02 572.98 573-28 572.70 57 3.08 +0.03 Observed Pos. Angle. Corrected Pos. Angle. 289° Qo! yh 289 9 21 289 9 2 289 9 35 289 12 43 289 12 30 289 16 3 289 16 50 289 12 SI 289 14 289 289 289 289 289 289 289 289 289 289 199° 18/ 58// 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 fo} / di df dd 199 19 59 8 (£0.07) Observed Pos. Angle. 354° 34! 37” 354 35 30 354 34 52 354 35 46 354 36 28 354 37 32 354 37 33 354 37 7 354 36 15 354 35 17 354 34 45 354 36 36 354 35 38 354) 30uay 354° (3077 354 31 6 Corrected Pos, Angle. 264° 264 264. 264 264 264 264 264. 264 264. 264. 264 264. 264. 264 264 ° U] Ud UU df 264 43 17° +13 (40.03) Group of the Plecades. 295 ANONYMA 12. ol. Corrected Distance. Corrected Pos. Angle. Observed Pos, Angle. Observed. Distance. 16 East 16 West 17 Kast 17 West 18 East 18 West Ig Kast 19 West 20 Eas* 20 W 21 Kast 21 West 22 East 22 West 23 Hast 23 West 24 Kast 24 West 25 Hast 25 West 32. 16 East 16 West 17 East 17 West 18 East 18 West 19 Hast 19 West 20 East 20 West 21 East -21 West 22 East 22 West 23 Hast 23 West 24 East 24 West 25 East 25 West 52.9476 52.9458 52.9506 52.9468 52.9510 52.9532 52.9331 52.9287 52.9410 52.9392 52.9428 52.9412 52.9453 52.9352 52.9452 52.9423 52.9470 52.9490 52.9451 52.9514 Means Observed Distance, 90.7812 90.7773 90.7847 90.7804 99.7949 90.7865 90.7656 90.7613 90 7580 90.7631 90.7749 90.7673 90.7652 90.7730 90.7765 90.7667 90.7776 90.7833 90.7765 90.7960 Means Seale, 52.9587 52.9561 52.9616 §2.9570 52.9620 52.9035 52.9441 52.9389 52.9520 52.9494 52.9538 52.9514 52.9564 52.9454 52.9562 52.9525 52.9580 52.9593 52.9562 52.9612 Are, 1484.00 1484.04 1484.02 1483.97 1483.98 1484.06 1483.80 1483.69 1483.90 1483.85 1483.85 1483.85 1484.07 1483.81 1483.95 . 1483.91 1483.88 1484.01 1483.68 1483.84 Vd Ud 1483.91 0.02 Corrected Distance. Seale. 90.7960 90.7917 99.7994 99.7950 90. 8096 90. 8010 90.7802 90.7758 90.7726 90.7763 90.7895 90.7818 90.7798 90.7875 90.7912 99.7799 90.7922 90.7978 90.7912 90.8092 Are. ne 544.22 2544.29 2544.24 2544.21 2544.40 2544.22 2544.02 2543-95 2543.61 2543-78 2543-91 2543-98 2543.93 2544.24 2544.07 2543.85 2543.80 2544.12 2543.57 2544.13 / as 2544.03 £0.04 77° 42! 20! 42 32 “42 39 43 18 45 30 53 16 347° 52/ 11! 7 38 347 347 347 347 347 347 347 347 347 347 347 Sri 347 347 347 347 347 347 347 (o) 4 fd Vd 347 53 17 +6 (-£0.04) Observed Pos. Angle. 83° 48! 55!’ 8 Corrected Pos. Angle. 353° 58/47" gad 353 353 S116) 354 354 354 353 354 354 354 354 353 354 353 354 354 353 353 58 59 59 59 tn G7 tm Oomrmpoundqcdq0oouwsao°od 27 | 12 O 57 Ke) 46 | 7 20 (@) 4 4d 4d Vd 353 59 52 +7 (40.08) 16 East 16 West 17 East 17 West 18 East 18 West 19 East 1g West 20 Kast 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 Hast 24 West 25 East 25 West 16 East 16 West 17 East 17 West 18 East 18 West I9 East 19 West 20 East 20 West 21 East 21 West 22 East 22 West 23 Hast 23 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 17.5704 17.5701 17.5904 17.5880 17.5920 17.5880 17.6014 17.5915 17.5938 17.5918 17.5971 17.6021 17.6035 17.5985 17.5953 17.6105 17.5991 17.5953 17.5991 17.6077 Means Observed Distance. 21,3060 Means ANONYMA 13. Corrected Distance. Scale. 17-5779 17.5773 17.5979 17.5952 17.5995 17.5964 17.6089 17.6004 17.6013 17.5996 17.6046 17.6099 17.6110 17.6051 17.6028 17.6172 17.6066 17.6037 17.6066 17.6147 Are. 492.61 492.64 493-17 493.12 493.16 493.08 493-41 493-19 493.19 493.16 493-27 493-47 493-52 493-37 493.27 493.68 493-23 493.19 493.24 493.48 Ud Ut 493.22 £0.03 Corrected Distance. Seale. 21.3149 21.3167 21.3158 21.3021 21.3198 21.3073 21.2981 21.2861 21.3019 21.3022 21.2969 21.2947 21.3026 21.3008 21.2913 21.3110 21.3092 21 3137 Are. 597.28 597.38 597.27 596.93 597.30 597.04 596.93 596.60 596.97 596.99 596.79 596.78 597.01 596.97 596.65 597.22 597.04 597-17 ‘é “i 597.02 0.04 Observed Pos. Angle. g07 Saws 297 297 (297 297 297 297 297 297 297 297 297. 297 297 297 297 297 297 297 297 fo) 207 Observed Pos. Angle. ac 36/ 8// 37 Corrected. Pos. Angle. 207° 15/ 30// 287) 4) 207 16 207 207 207 207 207 207 207 207 207 207 207 207 207 207 207 207 207 / dé UG +14 (40.03) Corrected Pos, Angle. 344° 45! 58! 344 46 15 344 48 12 344 48 I9 344 48 29 344 49 21 344 48 44 344 344 344 344 344 344 344 344 344 344 344 ° / 4d ‘i i 344 47 36 +17 (40.04) 16 East 16 West 17 East 17 West 18 East 18 West 20 East 20 West 22 East 1 22 West 1 23 East | 23 West 25 Hast 25 West 26. 16 East 160 West 17 East 17 West 18 East 18 West 19 East 19 West 20 East 1 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West f 24 Kast 24 West 25 Kast 1 25 West Observed Distance. 43.4149 43-4140 43.4242 43-4158 43.4260 43-4369 43-4361 43-4271 43.4363 43-4236 43.4283 43.4342 43.4645 43.4430 Means Observed Distance. Group of the Plevades. . Corrected Distance. Seale. 43.4267 43.4269 43.4360 43-4287 43-4378 43-4498 43.4479 43.4400 43-4481 43-4365 43.4401 43.4471 43.4764 43-4544 Are. 1216.95 1217.05 1217.19 1217.03 1217.15 1217.49 1217.48 1217.29 1217.57 1217.29 1217.27 1217.52 1218.02 1217.42 4 Mt 1217.34 0.05 ANONYMA I5. Corrected Distance. Seale. 2.6706 2.6791 2.6798 2.6957 2.6904. 2.6850 2.6785 2.6728 Ro727 2.6824 2.6635 2.6735 2.0782 2.6826 2.6716 2.6721 2.6832 2.6980 2.6684 2.6710 Means 2.6730 2.6817 2.6822 2.6969 2.6929 2.6854 2.6809 2.6736 2.6751 2.6824 2.6659 2.6735 2.6806 2.6842 2.6740 2.6721 2.6856 2.6988 2.6708 2.6714 Are 74.89 75-15 75-15 75-57 75-45 75.24 75.16 74-95 74-97 75-19 74-71 74.93 75-13 75-23 74.94 74.89 75.28 75.65 74.84 74.86 4 4 75.11 -+0.04 ANONYMA 14. Observed Pos. Angle. 276° 11/43! 270) 12 276 276 276 276 276 276 276 276 276 276 276 276 297 Corrected Pos. Angle. 186° 21/ 35// 186 2 186 57 186 186 45 186 186 186 186 186 186 186 186 186 186 22 36. +14 (+0.07) Observed Pos. Angle. 3445" 19 4I 59 54 30 Corrected Pos. Angle. 304° 54! 37” 304 47 39 304 18 304 17 304 57 49 304 304 304. 304 304 304, 304 304 304 304. 304 304 304 304 304 ° / Ul 4 4“ 304 42 I -KIIQ (0.06) 298 Rutherfurd Photographic Measures. 3%. ANONYMA 17. Corrected Distance. Observed! = sf eek ie SE See eae Observed Corrected Distance. Pos. Angle. Pos. Angle. Seale. Are. | 16 East .1541 1405.43 181° I14/ 32!/ 16 West , .1504 1405.45 181 17 East .1567 1405.49 181 17 West : -1594 1405.61 181 18 East ; .1623 1405.55 181 18 West : .1580 1405.46 181 19 Hast .1683 1405.89 181 19 West .1530 1405.49 181 20 Hast .1657 1405.74 181 20 West , .1598 1405.60 181 21 Kast | ; .1592 1405.49 ISI 21 West , .1597 1405.64 181 22 East : .1596 1405.66 181 22 West : .1563 1405.62 181 23 Hast .1552 1405.44 181 23 West ; .1566 1405.54 181 24 Kast i .1546 1405.20 181 24 West 1563 1405.34 181 25 Kast ; 1405.50 181 25 West | 50.1577 : 1405.50 8 26 181 ° / “ 44 “i Means 16 74, 26" (GEO.05)) Corrected Distance. Observed : Observed Corrected Distance. i Pos. Angle. Pos. Angle. eale. } 16 East | 3.0594 3.0613 73° 35/19" | 343° 457 gl! | 16 West | 3.0543 3.0563 : oat Al 24 | 343 1 17 Hast | 3.0598 3.0617 33 57 | 343 17 West | 3.0522 3.0541 25 48 0 73ae | 18 East 3.0489 3.0508 41 55 | 343 1 18 West 3.0556 3.0576 42 15 343 j 19 Hast | 3.0458 3.0477 37 3h aie43 19 West | 3.0387 3.0405 201200 saa 1 20 Hast | 3.0448 3.0466 27 a2 a \eaR #20 West | 3.0518 3.0521 85.54 35 18 | 343 P21 Hast | 3.0385 3.0402 85.19 34 57 | 343 H 21 West | 3.0444 3.0459 85.36 34 32 | 343 | 22 Kast 3.0420 3.0438 85.30 1525 fl 38 22 West 3.0487 3.0503 85.49 24) 26'° || 343 | 23 East 3.0488 3.0506 85.49 27 PAI e | CaAg | 23 West | 3.0450 3.0465 85-37 41 32 | 343 124 Hast | 3.0541 3.0559 85.63 29 I | 343 24 West | 3.0439 3-0455 85.34 28 39 | 343 25 Hast 3.0499 3.0518 85.51 27 Dawn sAa 25 West | 3.0463 3.0477 85.40 26 50 | 343 4 4s ° v] Ut 4d 4d Means 85.48 0.03 343 39 39 75 (£0.03) | 40. Observed Distance. Group of the Pleiades. ANONYMA I9. Corrected Distance. Seale Are. 16 East | 16 West 7 17 Kast 1 17 West 18 Kast 18 West 19 Kast 19 West 20 Kast 20 West 21 Kast 21 West 22 Kast. 22 West 23 Kast 23 West 24 Kast 24 West 25 East 25 West 41. 40.1924 40. 2013 40. 2024 40.1919 40.1986 40.1910 40. 2054 40.1985 40.2048 40.1973 40.1978 40.2015 40. 2040 40.1975 40.1884 49.1933 40. 2091 40.1969 40.2005 40.2044 Means 40. 2033 40.2122 40. 2133 40.2028 40.2095 40.2032 40.2164 40.2095 40.2157 40. 2082 40.2088 40.2125 40.2156 40.2085 40.1993 40. 2042 40.2200 40.2091 40.2204 40.2167 I 126.60 1126.93 1126.86 ~ 1126.60 1126.68 1126.53 1127.03 1126.86 1126.93 1126.75 1126.69 1126.90 1127.00 1126.84 1126.46 1126.65 1126.89 1126.64 1126.82 1126.75 II 26.77 ++0.03 ANONYMA 20. Observed Distance. Corrected Distance. 16 Kast 16 West 17 Kast 17 West 18 East 18 West 19 Kast Ig West 20 East 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 East 24 West 9 25 East | 25 West 60.6775 60.6664 60.6634 60.6598 60.6764 60.6798 60.6574 60.6539 60.6670 60. 6682 60.6642 60.6586 60.6598 60.6619 60.6685 60.6665 60.6781 60.6665 60.6829 60.6704 Means Seale. 60.6883 60.6749 60.6742 60.6706 60.6872 60. 6906 60.6682 60. 6647 60.6778 60.6790 60.6750 60.6694 60.6706 60.6720 60.6793 60.6773 60. 6889 60.6773 60.6937 60.6812 Are. 1700.63 1700. 39 1700.20 1700.17 1700.45 1700.59 1700.13 1700.07 1700. 30 1700. 37 1700.14 1700.15 1700.21 1700.31 1700. 33 1700. 33 1700. 33 1700.12 1700. 38 1700.06 di Ud 1700.28 +0.03 Observed Pos. Angle. 269° 13! 8! 269 14 25 269 57 269 53 269 20 269 18 269 50 269 21 33 269 269 269 269 269 269 269 Corrected Pos. Angle. L709 > 23/ o// iO Za 2 179 179 179 179 179 179 179 179 FAS. 179 179 179 179 179 179 179 179 179 d dd Vd Uh All ats) (SSC) Observed * Pos. Angle. 34/58!” Corrected Pos. Angle. 0° 44! 50!" (o) (2) -{e} {e){e) (2) (©) 18) @) (e) (©) (e) te) (©) (8) (e) (2) (9) (e) 300 42. Rutherfurd Photographic Measures. Observed Distance. 16 East 16 West 17 East 17 West 18 East 18 West 19 Kast Ig West 20 East 20 West 21 Kast 21 West 22 East 22 West 23 East 23 West | 24 East 24 West 25 Hast 25 West 16 East 16 West 17 East 17 West 18 East 18 West 19 Kast Ig West 20 Kast 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 Hast 24 West 25 Kast 25 West 25.9510 25-9527 25-9499 25-9497 25-9632 25.9632 25.9655 25-9596 25.9643 25.9621 25.9558 25-9546 25.9588 25.9624 25-9579 25.9489 25.9609 25.9587 25.9681 25.9657 Means Observed Distance. 69.5398 69.5299 69.5489 69.5 306 69.5477 69.5325 69.5317 69.5337 69.5261 69.5391 69.5441 69.5275 69.5270 69.5357 69.5341 69.5299 69.5469 69.5210 69.5399 69.5474 Mean; ANONYMA 22. Corrected Distance. Seale. 25.9617 25.9634 25-9605 25.9616 25-9739 25-9751 25.9762 25-9793 25-9750 25-9728 25.9665 25.9653 25.9695 25-9731 25.9686 25.9596 25.9716 25.9694 25 9788 25.9765 ; Are. 727-52 F2je02 727.46 727-51 727-79 727.84 727.98 727.84 727-90 727.80 2702 727.07 727-79 727-92 727-71 727-49 727-70 727-07 727.84 727-79 “ Md L2fs 13) 2202038 ANONYMA 21. Corrected Distance. Seal 69.5536 69.5438 69.5639 69.5446 69.5616 69.5464 69.5456 69.5476 69.5399 69.5530 69.5573 69.5413 69.5408 69.5496 69.5480 69.5417 69.5609 69.5348 69.5539 69.5614 Are. UC 1949.05 1948.93 1949.30 1948.84. 1949.09 1948.72 1948.88 1948.98 1948.61 1949.01 1949.00 1948.77 1948.77 1949.08 1948.83 1948.73 1948.89 1948.27 1948.58 1948.84. 1948.86 -++0.0 | Observed Pos. Angle. 265° 31/47" 265 265 265 265 265 265 265 265 265 265 265 265 53 15 4 ONG 20 | Corrected Pos. Angle. 175° 41/ 39” P75 175 175 175 175 175 175 175 175 175 175 175 175 175 175 175 175 175 175 42 4t 41 44 42 44 44 43 A2 43 42 43 43 43 42 42 44 42 42 30 V7 49 12 52 I 15 II 17 c. 9 45 49 fo) I 49 30 22 54 / Md ‘i =k9 (0.04) Observed Pos. Angle. Q1° 27/50! 28 28 28 31 31 Corrected Pos. Angle. TS Ov 5 ee ee ee ce | 44, 16 East 16 West 17 Kast 117 West B18 Kast 18 West Ig East 19 West 20 Kast 20 West 7 21 Kast 21 West 22 East 22 West 23 Kast 23 West 24 Kast 24 West 25 Hast 25 West 45. Observed Distance. 56. 3087 56. 3084 56.3231 56.3123 56.3243 56.3127 56. 3230 56.3253 56.3224 56. 3265 56. 3234 56.3254 56.3276 56.3138 56.3230 56. 3227 56.3382 56.3277 56.3318 56.3363 Means Observed Distance. 22.5049 22.4990 22.4918 22.5014 22.5065 22.5025 22.4934 22.4950 22.4045 22.4919 22.4975 22.4942 22.4909 22.4932 22.5026 22.5059 22.4988 22.4992 22.4986 22.4944 Means Group of the Pleiades. ANONYMA 23. Corrected Distance. Seale. 56.3186 56.3170 56.3330 56.3222 56.3342 56.3241 50.3329 56.3341 56.3323 56.3353 56.3333 56.3357 56.3375 56.3241 56.3329 56. 3330 56.3481 56.3380 56.3417 56.3466 A. 1577-97 1578.25 1578.53 1578.30 1578.48 - 1578.22 1578.68 1578.75 1578.55 1578.68 1578.51 1578.73 1578.80 1578.47 1578.56 1578.61 1578.78 1578.59 1578.48 1578.65 1578.53 +0.03 ANONYMA 24. Corrected Distance. Seale. 22.5147 22.5078 22.5016 22.5102 22.5163 22.5124 22.5032 22.5049 22.5043 22.5018 22.5073 22.5041 22,5007 22.5031 22.5124 22. 55a 22.5086 22.5091 22.5084 22.5052 Are. Vd 630.93 630.79 630.56 630.83 630.92 630.83 630.60 630.66 630.60 630.55 630.66 630.63 630.55 630.65 630.84 630.95 630.60 630.65 630.58 630.49 6 30.69 +0.0 3 Observed Pos. Angle. 266° 17/ 51! 266 266 266 266 266 266 266 266 266 266 266 266 266 266 266 266 266 266 266 (o} 176 Observed Pos. Angle. 43! 22/1 43 43 44 47 47 Corrected Pos. Angle. 176° 27! 43" 176 13 176 45 | 176 28 49 | 176 2 | 176 38 | 176 41 176 oO | 176 42 | 176 24 | 176 26 | 176 Ig | 176 36 176 59 176 43 | 176 34 176 16 | 176 3 | 176 34 176 21 | Corrected Pos. Angle. 9? Ud 4/ 4d +8 (0.06) OF Geile 24 45 ro) ’) “i Vi “i 9 54 18 +11 (0.06) 16 East 16 West 17 East 17 West 18 East 18 West I9 East 19 West 20 East 20 West 21 East 21 West 22 East 22 West 23 East 23 West 24 East 24 West 25 Kast 25 West 4%. 16 Kast 16 West 18 East 18 West 20 Kast 20 West 22 Kast 22 West 23 East 23 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 4.1927 4.1786 4.1930 4.1878 4.1832 4.1827 4.2005 4.1966 4.2023 4.2026 4.2115 4.2048 4.2026 4.1785 4.1974 4.1969 4.1980 4.1966 4.1973 4.2045 Means Observed Distance. ALCYONE. Corrected Distance. Seale. 4.1940 4.1818 4.1942 4.1911 4.1852 4.1855 4.2018 4 1999 4.2035 4.2044 4.2027, 4.2069 4.2039 4.1809 4.1987 4.1981 4.1992 4.1999 4.2046 4.2058 Are 117.52 117.19 Li7.53 117.44 117.28 117.28 117.78 L773 117.80 117.83 118.05 117.90 117.82, 117.18 117.65 117.65 117.69 117.71 117.81 117.85 Vd Ul 117.63 0.04 ANONYMA 25. Corrected Distance. Seale. Are, Observed Pos. Angle. 199° 17/ 52! 199 26 32 199 30 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 199 Corrected Pos. Angle. 109° 27/ 25/7 109 109 109 109 109 109 109 109 109 109 109 109 109 109 109 109 109 109 109 Oo / ad ad “ 109 21 O +95 (40.05) Observed Pos. Angle. 65.5120 65.5222 65.5228 65.5270 65.5255 65.5309 65.5321 65.5180 65.5213 65.5275 65.5452 65.5359 Means 65.5224 65.5316 65.5332 65.5365 65.5360 65.5403 65.5426 65.5284 65.5317 65.5375 65.5556 65.5464 1836.07 1836.46 1836.22 1836. 36 1836.51 1836.66 1836.76 1836.43 1836. 32 1836.55 1836.64 1836.43 183 6.4 5 +0 04 262° 28/ ol 262 29 262) 132 262 31 262 34 262 34 262 34 262 34 262 32 262.(23 262) 421 262) 82 Corrected Pos. Angle. 172° 37 She 172 38 49 172 Ai it 172 39 31 172 (40) 20 172 39 46 172 40 44 172 3955 172 39 25 172 39 4! 17230) 16 172 40 4 fo) é 4d “/ 4d 172 39 43 +9 (0.08) 48. 16. East 16 West 17 Kast 17 West 18 East 18 West 16 East 16 West Observed Distance. 74.3556 74.3667 74.3581 74-3574 74- 3435 74-3835 Means Observed Distance. 27.2258 27.2446 Means Observed Distance. Group of the Pleiades. ANONYMA 26. Corrected Distance. Seale 74-3679 74.3780 74-3793 74.3086 74-3557 74-3954 Vd 2084.01 Corrected Distance. Seale. Are. Observed Pos. Angle. 261° 6/53! 201; .7'20 261 7 33 261% 8.21 261 10 18 261, Wn 8 (eo) é / Ltt 1742 Observed Pos. Angle. 303 Corrected Pos. Angle. 171° 16/44" I7I 16 56 I7t 17 34 171 18 5 E71. 18 (14 I7I 18 35 Corrected Pos. Angle. 27.2363 27.2560 763.20 763.81 16 East 16 West 17 East s 17 West 18 East 18 West 21 East 21 West 22 Hast 22 West 25 East 25 West 114.1793 114.1548 114.1821 114.1781 114.1598 114.1315 114.1817 114.1769 114.1745 114. 1605 114.2083 114.2029 Means 763.50 Corrected Distance. Seale. Are. 3199-73 3199.26 3199.77 3199.81 3198.86 3198.16 3199.42 3199.65 3199.60 3199.35 3199.62 3199-55 31 99.40 +0.08 114.1895 114.1641 114.1923 114.1891 114.1702 114.1425 114.1919 114.1879 114.1847 114.1715 114.2186 114.2141 234° 42/1 234 45 13 fo) / tt 144 53 18 Observed Pos. Angle. 100° 26/ 51// 100 100 100 100 100 100 100 100 100 100 100 144° 51/55! 144 54 41 Corrected Pos. Angle. Io° 36! Agi Io 1 fe) | fe) Io Io fe) Io Io Io Io Io ° U vd dé “i TO) 37 9240 t= 5) (20,08) _-Annats N. Y. Acap. Scr., VI, April, 1892. —21 & | 16 East f 16 West i 7 Kast #17 West 18 East 1 18 West 19 East 19g West 20 East f 20 West 21 East 21 West 22 Hast 22 West 23 East 23 West 25 East 25 West 52. 16 Kast 16 West 17 East 17 West 18 East 18 West 19 Kast 19 West 20 Kast 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 Hast 25 West Rutherfurd Photographic Measures. Observed Distance. 22.7840 22.8055 22.8046 22.7764 22.7742 22.7824 22.7782 22.7803 22.7783 22.788 22.7758 22.7733 22.7678 22.7760 22.7803 22.7790 22.7718 22.7954 Means Observed Distance. 36.5090 36.5010 36.5057 36.5063 36.5035 36.5056 36. 5042 36.4907 36.5005 36.5053 36.5048 36.4991 36.4833 36.4902 36.4993 36.5011 36.5050 36.5040 36.5040 36.5022 Means Corrected Distance. Scale. 22.7945 22.8153 22.8152 22.7861 22.7847 22.7936 22.7887 22.7907 22.7888 22.7991 22.7862 22.7841 22.7783 22.7859 22.7908 22.7888 22WTO23 22.8053 638.71 ANONYMA 27. Are. “é 638.79 639-43 639.38 638.60 638.42 638.70 638.69 638.76 638.63 638.93 638.51 638.50 638.35 638.59 638.65 638.62 638. 31 638.96 4d +0.04 Corrected Distance. Seale. 36.5204 36.5136 36.5171 30.5177 36.5149 36.5176 36.5156 36.4991 36.5119 36.5175 36.5162 36.5112 36.4947 30.5039 36.5107 36.5133 36.5164 36.5170 36.5154 36.5150 Are. 1023.45 1023.34 1023 39 1023.46 | 1023.17 1023.26 1023.18 1022.74 1023.06 1023.25 1023.16 1023.11 1022.66 1022 97 1023.05 1023.16 1022.96 1023.06 1022.94 1022.95 td “i 1023.12 +0,03 Observed Pos. Angle. 170° 46/ 16// 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 Observed Pos. Angle. 133° 45/ 35” 133 46 25 133 56 133 50 133 33 133 3 133 5 133 53 133 13 133 , 34 133 20 133 52 133 Corrected Pos, Angle. 80° 55/49! 8 57 12 Corrected Pos, Angle. to co ae ' 59° +9 (40.05) Plate. 16 East 16 West 17 East 17 West 1 18 East 18 West 19 Kast 19 West 20 East 20 West 21 East 21 West 22 East 22 West 23 East 23 West 24 East 24 West 25 East 25 West. oA. 16 East 16 West 17 Kast 17 West 18 East 18 West 19 Kast Ig West 20 East 20 West 21 Kast 21 West 22 Kast 22 West 23 Hast 23 West 24 Kast 24 West 25 East 25 West Observed Distance. 93-9562 93-9535 93-9530 93-9515 93-9957 93-9524 93-9341 93-9299 93-9470 93-9400 93-9464 93-9435 93-9494 93-9344. | 93-9484 93-9387 93-9379 93-9403 93-9691 93-9644 Means ,. Observed. Distance. 44.7532 44.7072 44.7619 44-7557 44-7580 44.7697 44-7546 44.7596 44-7535 44.7631 44-7655 44.7608 44-7496 44.7468 44.7470 44.7624 44-7732 44.7698 44.7713 44.7713 Means Group of the Pleiades. ANONYMA 28. Corrected Distance. Seale. 93-9697 93-9671 93-9664 93-9652 93-9792 93.9660 93-9475 93-9442 93-9604 93-9531 93-9598 93-9567 93-9629 93-9492 93-9618 93-9535 93-9513 93-9534 93-9826 93-9788 Are. 2633.09 2023.22 2632.91 2632.98 2633.19 2632.87 2633.03 2632.98 2633.09 2632.94 2632.87 2633.04 2633.20 2632.90 2632.94 2632.81 2632.61 + 2032.79 2633.12 2633.05 Md 4d 2632.98 0.02 ANONYMA 29. Corrected Distance. Seale. 44.7052 44.7800 44.7739 44.7680 44.7700 44.7820 44.7666 44.7726 44.7655 44.7761 44-7775 44.7738 44.7616 44.7610 44.7590 44.7754 44.7853 44 7828 44.7833 44.7843 Are. 1254.50 1255.02 1254.78 1254.67 1254.46 1254.83 1254.38 1254.60 1254-33 1254.67 1254.63 1254.66 1254-33 1254.37 1254 19 1254.69 1254.63 1254.66 1254-57 1254 63 I 254.58 +0.03 Observed Pos. Angle. 250° 58! 33// 250 58 250 58 252 58) 251 ok 251 251 251 251 251 251 251 251 251 251 251 251 251 251 251 SeBRBRNNAPN DN BWW ADH of 4 “ “ 4 161 9 13. +6 (+0.07) 40 33 18 55 31 4 13 3 59 44 33 26 8 20 33 II 46 I 56 Observed Pos. Angle. 137° 59! 267’ ESTOS) Bie 59 SL SSS) 138 138 138 138 138 138 138 138 138 138 138 138 138 138 138 138 NK PRPWWWWWH DH PWUOU NW 48 305 Corrected Pos, Angle. 161° 8! 22t 161 161 161 161 161 161 161 161 161 161 161 161 161 161 161 161 161 161 161 bet 09 CO\1O OH CW OW WO COO OO 14 30 58 51 4 | I 45 9 | 30 58 II oe Oo 2 36 37 46 53 55 Corrected Pos. Angle. 48° o/ 8" § 15 35 20 8 9 51 22 32 II 16 44 24 59 58 45 47 II 21 45 fe) / d/ 4 dé AGM TOS) 5) (O62) 16 Kast 1 16 West 17 East 17 West 18 East 18 West 19 Kast 7 19 West 1 20 East 20 West 21 Kast 21 West 22 Kast 1 22 West 23 East 23 West 24 Hast 24 West 25 Hast 25 West 16 East 16 West 17 East 17 West 18 Kast 18 West 19 East 1 19 West 20 East 20 West 22 Kast 22 West | 23 East 23 West | 24 Kast 24 West 1 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 36.9900 36.9912 36.9904 36.9958 36.9777 37.0015 36.9924 36.9753 36.9783 36.9837 36.9892 36.9868 36.9764 36.9885 36.9889 36.9896 36.9717 36.9434 37.0069 36.9828 Means Observed Distance. 117.2792 117.2742 117.2748 117.2670 117.2712 117.2828 117.2320 117.2174 117.2673 117.2751 117.2819 117.2721 117.2684 117.2828 117.2632 117.2458 117.2957 117.2756 Means Corrected Distance. Seale. 37.0021 37-9033 37.0025 37-0079 36 9898 37-0143 37.0045 36.9886 36.9904 36.9970 37.0012 37.0002 36.9885 37.0015 37.0910 37.0026 36.9837 36.9566 37.0190 36.9970 Are. 1036.94 1037.06 1036.97 1037.17 1036.44 1037.16 1037.07 1036.64 1036.58 1036.79 1036.81 1036.90 1036.56 1036.96 1036.83 1036.91 1036.26 1035-57 1037.15 1036 56 1036.77 +0.05 Corrected Distance. Seale. 117.2904 117.2870 117.2861 117.2798 117.2824 117.2956 117.2432 117.2288 117.2785 117.2861 117.2932 117.2852 117.2796 117.2960 117.2744 117.2574 117.3070 117.2892 Are. Observed. Pos. Angle. 166° 4! 6// 166 4 40 166 5 13 166 166 166 166 166 166 166 166 166 166 166 166 166 166 166 166 166 Corrected Pos. Angle. 7 13/ 40! 76 1§ §9 +13 (40.06) | Observed Pos. Angle. 3286.44 3286.59 3286.20 3286.14 3286.01 3286.46 3285.86 3285.50 3286.45 3286.73 3286.91 3286.80 3286.24 3286.82 3286.04 3285.76 3286.52 3286.06 3286 31 +0.07 248° 50! 48// 248 6 248 248 248 248 248 248 248 248 248 248 248 248 248 248 248 248 Corrected Pos. Angle. 159 Oh ag 159 O 49 159 16 159 41 159 33 159 59 159 13 159 17 159 24 159 159 159 159 159 159 159 159 159 Lal NNN NDN FDNY DY RB BHWO FN Ovens i 4d 4/ 159 2 5 +6 (0.09) Group of the Pleiades. 307 26 S. 5%. Corrected Distance. Corrected Pos. Angle. Observed Pos. Angle. Observed Distance. Seale. 16 East 16 West 17 East 17 West 18 East 18 West Ig East 19 West 20 East 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 Hast 25 West 58. 16 East 4 160 West 17 Kast 17 West 18 East 18 West 19 East 19 West 20 East 20 West } 21 East 21 West 22 East 22 West ; 23 East 1 23 West i 24 East 24 West 25 East 25 West 57-3722 57-3674 57-3082 57-3708 57-3739 57.3644 57-3584 57-3577 57-3637 57-3559 57-3729 57-3668 57-3632 57-3638 57-3778 57-3973 57-3712 57-3584 57-3823 57-3753 Means Observed. Distance. 57.3022 57-3770 57-3781 57.3819 57-3838 57-3761 57.3082 57.3689 57-3735 57-3691 57-3829 57.3801 57-3730 57-3755 57.3878 57.3806 57-3011 57.3699 57-3923 57-3988 Are. 1607.93 1607.91 1607.78 1607.93 1607.84 1607.66 1608.13 1608.16 1608.01 1607.90 1608.07 1608.14 1607.92 1608.03 1608.17 1608.02 1608.20 1607.94 1608.14 1608.06 4d 4d 1608.00 -0.02 ATLAS. Corrected Distance. Seale. Are. 214° 29! 42!/ 214 214 214 214 214 214 214 214 214 214 214 214 214 214 214 214- 214 214 214 Ta40 124 124 124 124 124 124 124 124 124 124 124 124 124 124 124 124 124 124 124 39/ 19” 39 39 39 Al 40 4I At 25 7 38 22 46 15 6 56 31 48 35 40 47 25 (eo) / dd Md ‘i 124 40 39 +6 (£0.04) Observed Pos. Angle. 53-7244 53-7287 53-7230 53-7396 53-7382 53-7386 53-7354 53-7435 53-7421 53-7425 53-7451 53-7566 53-7366 53-7308 53-7439 53-7595 53-7304 53-7309 53-7466 53-7018 Means 53-7356 53-7391 53-7342 53-7500 53-7494 53-7519 53-7466 53-7559 53-7533 53-7551 53-7563 53-7692 53-7478 53-7424 53-7551 53-7711 53-7416 53-7440 53-7578 53-7740 1505.81 1506.02 1505-77 1500.27 1506.03 1506.13 1506.49 1506.77 1506.46 1506.53 1506.40 1506.90 1506.29 1506.17 1506. 33 1506.83 1506.04 1506.19 1506. 23 1506.70 I 506. 32 +0.0 5 187° 45/ 21// 187 45 187 187 187 187 187 187 187 187 187 187 187 187 187 187 187 187 187 187 Corrected Pos. Angle. G7 97 97 97 97 97° 54! 53! | fe} / UL UU UC 97 54 58 +5 (0.04) 16 Kast 16 West 17 Kast 17 West 18 East 18 West 5 19 East 19 West 20 Kast 20 West 21 Kast 21 West 22 Kast 22 West 23 Kast 23 West | 24 Kast 24 West 25 East 25 West 60. 16 East 16 West 17 Kast 17 West 18 East 18 West Ig East Ig West 20 Hast 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 East 25 West futherfurd Photographic Measures. Observed Distance. 53-8696 53-8734 53-8799 53-8826 53-8970 53-8876 53.8871 53.8780 53-8883 53-8818 53.8821 53-8861 53-8807 53-8816 53-8802 53-8824 53.8901 53.8838 53.8997 53.8914 Means Observed Distance. 61.8217 61.8192 61.8357 61.8264 61.8386 61.8263 61.8149 61.7971 61.8284 61.8130 61.8260 61.8050 61.8122 61.8169 61.8270 61.8183 61.8043 61.7911 61.8241 61.8174 Means PLEIONE. Corrected Distance. Seale. 53-8812 53-8841 53-8898 53-8932 53-9070 53-8998 53-8970 53-8908 53.8982 53-8947 53.8920 53-5981 53.8906 53-8935 53-8918 53-8944 53-9001 53-8973 53-9097 53-9040 Are. 1509.91 I510.11 1510.17 1510.33 1510.44 1510.28 1510.59 1510.43 1510.44 1510.37 1510.15 1510.46 1510.25 [510.37 1510.14 1510.26 1510.35 1510.36 1510.42 1510.27 4 UU 1510.30 0.02 ANONYMA 30. Corrected Distance. Seale. 61.8333 61.8299 61.8473 61.8372 61.8494 61.8377 61.8265 61.8087 61.8400 61.8257 61.8376 61.8177 61.8238 61.8281 61.8386 61.8305 61.8150 61.8027 61.8357 61.8300 Are. 17, 32.66 1732.70 1733.02 1732.80 1732.96 1732.68 1733-10 1732.60 1733-07 1732.80 1732.91 1732.52 1732.65 1732.81 1732.88 1732.71 1732-45 1732: U7, 1732.63 1732.49 173 2.74 +0.04 176° 17/28"! Observed Pos. Angle. Corrected Pos. Angle. 86° 27! ol! | 176 176 176 176 176 176 176 176 176 176 176 176 176 176 176 176 176 176 176 277-28 ° 4 ad i Ua 86 28 10 +5 (40.04) Observed Pos. Angle. Corrected Pos. Angle. 207° 33/ 1//| 117° 42! 36! 207 117 43 13 207 117 43 45 207 117 43 50 207 117 44 29 207 Il7 44 45 207 117 45 207 117 45 207 117 44 207 Il7 44 207 117 207 nt) 207 117 207 117 207 117 207 117 207 117 207 117 207 117 207 117 (eo) / Me Ui Mi 117 44 32 +8 (0.06) 16 East 16 West 17 Kast 17 West 62. Observed Distance. 106.3549 106.3579 106. 3577 106.3539 Means Observed Distance. Group of the Pleiades. Corrected Distance. Seale. Are. 106. 3667 106. 3700 106. 3696 106. 3660 2980.44 ANONYMA 31. 2980.37 2980.69 2980. 34 2980. 35 Corrected Distance. Seale. 66.9656 66.9585 66.9580 66.9547 66.9629 66.9654 66.9567 66.9507 66.9529 66.9579 66.9664 66.9581 66.9555 66.9541 66.9510 66.9491 60.9747 66.9602 66.9743 66.9649 Means 66.9765 66.9696 66.9688 66.9658 66.9738 66.9765 66.9676 66.9640 66.9638 66.9703 66.9773 66.9704 66.9664 66.9662 66.9618 66.9629 66.9857 66.9726 66.9853 66.9789 Are. 1876.94 1876.90 1876.78 1876.78 1876.58 1876.71 1876.52 1876.49 1876.35 1876.59 1876.65 1876.66 1876.56 1876.61 1876.30 1876.41 1876.62 1876.38 1876.55 1876.42 1876.59 +0.03 Observed Pos, Angle. 238° 10/ 43// 238 Il 35 238 10 48 2288) h2) 8 (eo) / UC 148 20 57 Observed Pos. Angle. 309 Corrected Pos. Angle. 148° 20/ 28 / 148 21 4 148 20 38 148 21 40 Corrected Pos. Angle. 146° 36/ 8// 146 146 146 146 146 146 146 146 146 146 146 146 146 146 146 146 146 146 146 50° 45/47!" | 56 46 fe} 4 Us UL td 56 47 48 +9 (+£0.09) 64. 16 East 16 West 1 17 East 17 West 18 East 18 West 19 Kast 19 West 20 Kast 1 20 West 21 East | 21 West 22 Kast 22 West 23 East 23 West | 24 East 24 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 68.0244 68.0219 68.0203 68.0195 68.0345 68.0303 68.0202 68.0132 68.0277 68.0264 68.0324 68.0280 68.0134 68.0085 68.0198 68.0204 68.0456 68.0264 68.0416 . 68.0353 Means Observed Distance. ANONYMA 32. Corrected Distance. Seale. 68.0358 68.0335 68.0317 68.0312 68.0460 68.0420 68.0317 68.0256 68.0392 68.0388 68.0439 68.0404 68.0248 68.0204 68.0312 68.0323 68.0571 68 0388 68.0531 68.0476 Are. 1906.62 1906.72 1906.56 1906, 62 1906. 62 1906. 56 1906. 37 1906, 26 1906.49 1906.54 1906.54 1906, 64 1906, 22 1906.17 1906, 27 1906. 37 1906.66 1906. 28 1906.48 1906. 37 Ut 4/ 1906.47 0.03 ANONYMA 33. Corrected Distance. Seale. 63.2988 63-2943 63.3009 63.2832 63.3048 63.3070 63.2945 63.2782 63.2849 63.2919 63.3022 63.2872 63.2832 63.2840 63.2992 63.2910 63.3064 63.2756 63.3081 63.3008 Means 63.3094 63.3058 63.3115 63-2954 63.3154 63.3190 63.3050 63.2912 63-2953 63-3035 63.3128 63.2988 63-2937 63.2956 63-3097 63.3027 63.3170 63.2886 63.3187 63.3124 1773-95 Are. Corrected Pos. Angle. Observed Pos. Angle. 149° 59° 15/15” 149 15 27 149 10 34 149 16°13 149 16 31 149 7 149 17 18 149 16 57 149 TO" 25 149 16 34 149 ) 16 12 149 16 23 149 16 46 149 ‘ 16 48 149 15 54 149 15 13 149 17 42 149 17 17 149 16 II 16 26 (o) / 44 UT Md 59) 1628) ==60) (Geo.06) Corrected Pos. Angle. Observed Pos. Angle. 1774.14 1774.18 1774.23 1773.86 1774.06 1774.21 1774.09 1773-74 1773.68 1773-95 1774.07 1773-84 1773.68 1773.80 1774.00 1773-87 1774.05 1773-37 1773-94 1773.80 4 +-0.03 103307037" 163 22 163 37 163 28 46 45 163 33 47 23 163 8 47 33 163 O 48 24 163 41 47 34 163 26 47 25 163 AT 22 163 46 42 163 47 24 163 47 37 163 47 37 163 AT2e 163 47 26 163 ; 48 40 163 3.47 45 163 46 48 163 46 52 18° 45 Age 45 40 47 13 73 47 16. -46 (-Lo.0s) Plate. .16 East 16 West 17 East 17 West 18 East 18 West 19 Kast 19 West | 20 East 20 West 21 East 21 West # 22 Kast 22 West | 23 Kast 23 West 24 East 24 West 25, Kast 25 West Observed Distance. 114.4380 114.4458 114.4454 114.4334 114.4451 114.4340 Means Observed Distance. 120.8330 120.8417 120.8494 120.8402 120.8653 120.8492 120. 8012 120. 8042 120.8260 120.8104 120.8510 120.8240 120.8252 120.8188 120.8410 120.8317 120. 8129 120.7716 120.8477 120.8393 Means Group of the Pleiades. Corrected Distance. Seale. 114.4488 114.4575 114.4563 114.4438 114.4559 114.4440 3206.82 Are. 3206.80 3207.28 3206.88 3200. 64. 3206.80 3206.54 Corrected Distance. Seale. ' 120.8446 120.8538 120.8611 120.8511 120.8757 120.8616 120.8128 120.8165 120.8376 120.8243 120.8626 120.8379 120.8368 120.8339 120.8526 120.8468 120.8245 120.7853 120.8593 120.8539 Are. / 3385.97 3386.50 3386. 32 3386.16 3386.64 3386. 32 3386.20 3386. 31 3386. 37 3386.05 3386.73 3386.35 3386.28 3386. 30 3386.39 3386.33 3385-87 3384-91 3386.19 3385.06 3 386.1 6 +0.06 Observed Pos. Angle. 234° 45’ 6! 234 45 12 234 46 26 234 46 52 234 49 6 234 49 20 fo} ] 4d 144 56 o Observed Pos. Angle. 311 Corrected Pos. Angle. 144° 144 144 144 144 144 SHS” 54 40 56 14 56 22 Ey ime 56 52 Corrected Pos. Angle. 234° 30! ol 234 30 234 234 234 234 234 234 234 234 234 234 234 234 234 234 : 234 234 234 234 33 52 144° 144 144 144 144 144 144 144 144 144 144 144 144 144 144 144 144 144 144 144 39! 44”” 40 9 40 29 4l 3 40 29 Al Al 34 42 4! 41 41 AI 4I 4I Al 4I 42 42 AI 40 59 fe} 4 dé 4 4d 144 4t 17 6 (2-0. 10) Rutherfurd Photographic Measures. ANONYMA 34. Corrected Distance. 6%. Observed Plate. Distance. Seale. 16 Kast 86.9506 86.9627 16 West | 86.9474 86.9606 17 East 86.9521 86.9642 17 West | 86.9611 86.9744 18 East 86.9595 86.9716 18 West | 86.9537 86.9670 19 Hast 86.9209 86.9329 19 West | 86:9138 86.9274 20 Kast 86.9367 36.9487 20 West | 86.9331 86.9471 21 East 86.9464 86.9584 21 West | 86.9322 86.9461 22 Hast 86.9438 86.9559 22 West | 86.9365 86.9500 23 East 86.9407 86.9527 23 West | 86.9306 86.9445 24 Kast 86.9378 86.9498 24 West | 86.9321 86.9460 25 Kast 86.9482 86.9602 25 West] 86.9593 86.9742 Means 68. 16 East 1 16 West 17 East 17 West 18 East 18 West | 20 East 20 West | 21 East | 21 West 22 East 22 West 23 Kast 23 West 24 East 24 West 25 East 25 West Observed Distance. 76.2329 76.2103 76.2298 76.1983 76.2321 76.2249 76.2129 76,2151 76.2070 76.1988 76.2139 76.1980 76.2178 76.2124 76.2104 76.2098 76.2106 76.2057 Means Are. 2436.76 2436.88 2436.73 2437.10 2436.81 2436.75 2436.83 2436.69 2436.85 2436.83 2436.84 2436.72 2430.94 2436.85 2436.62 2430.45 2430.84 2436.83 2436.58 2437.00 24 36 80 +0.02 ANONYMA 36. Corrected Distance. Seale. 76.2458 76.2243 76.2426 76.2122 76.2450 76.2385 76.2256 76.2278 76.2197 76.2137 76.2268 76.2131 76.2306 76,2276 76.2231 76.2241 70.2223 76.2212 Are. 2136.62 2136.20 2136.58 2135.80 2136.30 2136.17 2136.05 2136.15 2135.73 2135.76 2130.12 2135.81 2136.06 2136.04 2135-73 2135.88 2135.50 2135-47 Mi i 2136.00 -b0,05 Observed Pos. Angle. 215° 44! 41” 215 45 Oo 215 45 40 215 46 12 215 48 16 215 48 36 2155153 215 5 2n ais 235 49 27 215 50 7 215 48 17 215 49 28 215 49 46 BES Sono 215 48 40 215 49 30 2R5 Lik@aigS 215 50 38 215 47 0 215 48 22 Corrected Pos. Angle. 125° 54/ 18!" 125 54 20 125 500808 T2652 eoe 125 m5hOvms 125.56) 20 125 56 30 125 56 35 125 55 58 125 56 I 125 55 48 125). 50322 125 56 34 125 56 13 125 woo poe 125 55 42 125 56 18 125 56 18 125 55 14 125 55 42 125 55 50 +6 (40.07) Observed Pos. Angle. Corrected Pos. Angle. 169° 15! 5// +169 16 13 169 16 34 TOQUE ans 169 40 169 169 169 169 169 169 169 169 169 169 169 169 169 ‘24! 38" 25 29 26 26 18 27 ° / UG d/ 4d 79) 26-48 “3-6 (--0;06) Ar 6 Kast | 16 West 17 East 1 17 West 18 East 518 West 1 19 Kast f 19 West H 20 East 1 20 West f 21 East ; 21 West | 22 Hast 1 22 West 23 East 1 23 West 24 East 24 West | 25 East 25 West Plate. Observed Distance. 81.6036 81.5974 81.5989 81.5906 81.6047 81.6010 81.5991 81.5916 81.5871 81.5889 81.5980 81.5959 81.5870 81.5839 81.5906 81.6000 81.6111 81.5801 81.6189 81.6104 Means Observed. Distance. | 16 East 16 West 1 17 Kast 17 West 79-2524 79.2185 79.2408 79.2267 Means Group of the Pleiades. ANONYMA 37. Corrected Distance. Seale. 81.6173 81.6099 81.6126 81.6031 81.6184 81.6154 81.6129 81.6051 81.6008 81.6046 81.6117 81.6101 81.6007 81.5971 81.6103 81.6132 81.6248 81.6036 81.6326 81.6239 Are. 2287.17 225717 2280.76 2286.58 2286.88 2286.86 2287.05 2286.88 2286.55 2286.72 2286.74 2286.91 2286.66 2286.64 2286.76 2286.93 2286.86 2286.44 2286.04 2286.84 UG Md 2286.82 +0.03 Corrected Distan Seale. 79.2043 79.2324 79-2527 79.2406 Ud 2220.69 Are. Observed Pos. Angle. LS 7 So25e 157 157 157 157 157 157 157 157 157 157 157 157 Observed Pos. Angle. 313 Corrected Pos. Angle. 7 43! T// 43 43 47 43 44 45 45 45 44 44 44 45 44 44 44 44 45 45 Corrected Pos. Angle. Vd 2221.10 2220. 39 2220) 97) 2220.51 194° 28! 3!” 194 29 30 194 28 58 194, 30 15 fe} / 4 104 38 34 104° 37! 35! 104 38 45 104 38 29 J 104 39 26 f 314 71. 16 East 16 West 17 East 17 West 18 East 18 West 19 East 19 West 20 Kast 20 West 21 East 21 West 22 Kast 22 West 23 East 23 West 24 Kast 24 West 25 East 25 West Rutherfurd Photographic Measures. Observed Distance. 84.1302 84.1268 84.1420 84.1340 84.1343 84.1413 84.1000 84.1011 84.1158 84.1150 84.1240 84.1188 84.1206 84.1118 84.1278 84.1304 84.1144 84.0955 84.1275 84.1417 ANONYMA 38. Corrected Distance. Seale. Are. 2357-74 2357-94 2358.03 2358.00 2357-05 2357-97 2357-74 2357-87 2357-73 2357.88 2357-74 2357.86 2357.81 2357.69 2357-74 2357-97 2357-09 2357-53 2357-54 2358.00 Observed Pos, Angle. 203° 9! 58/ Corrected Pos. Angle. 113° I9/ 32// 203 203 203 203 203 113 113 113 113 113 113 113 tr 113 113 113 113 113 113 I¥3 113 113 113 113 Ig 19 20 27 20 21 21 21 21 20 20 20 20 BY 21 20 20 20 21 20 20 18 / dé di +5 (0.06) Means 23 57.81 +0.03 22 West 23 Hast 23 West Observed Distance. 110.6276 110.6162 110.6581 110.6114 110.6088 110.6166 110.6181 110.6253 Means Corrected Distance. 110.6411 110.6297 110.6717 110.6245 110.6223 110.6303 110.6316 110.6392 4/ 3100.26 Observed Pos. Angle. 139° 139 139 139 24! 30! Corrected Pos. Angle. 49° 49 49 49 49 49 49 49 34! t2// 35) 4 35 47 35 50 36 24 35 45 35 28 35 15 73. Plate. 16 East 16 West 17 East 17 West 18 East 18 West 19 East 19 West 20 East 20 West 21 East 21 West 22 East 22 West 23 East 23 West 24 East 24 West 25 East 25. West. wes Plate. 16 East 16 West 17 East 17 West 18 East 18 West Ig East Ig West 20 Kast 20 West 21 Kast 21 West 22 Kast 22 West 23 East 23 West 24 Hast 24 West 25 East 25 West Observed Distance. 103.3593 103.3584 103.3619 103-3443 103.3556 103.3635 103.3586 103.3541 103.3590 103.3652 103-3739 103-3559 103. 3527 103.3496 103. 3626 103.3614 103- 3/49 103-3713 103.3912 103-3787 Means Observed Distance. 105.2248 105.2201 105.2324 105.2132 105.2472 105.2372 105.2013 105.1928 105.2079 105.2130 105.2280 105.2188 105.2154 105.2095 105.2249 105.2270 105.2217 105.1854 105.2503 105.2339 Means Group of the Pleiades. ANONYMA 39. Corrected Distance. Scale. 103.3714 103.3699 103.3740 103.3572 103.3676 103:3779 103.3707 103.3685 103.3710 103.3809 103.3859 103.3715 103.3647 103.3636 103.3746 103-3754 103.3870 103.3857 103.4034 103. 3926 Are. 2896.74 . 2896.95 2896.88 2896.55 2896.19 2896.56 2896.54 2896.57 2896.42 2806.77 2806.71 2896.59 2896.42 2896.50 2890.51 2896.64 2896. 37 2896. 52 2896.72 2896.46 2896.58 +0.03 ANONYMA 40. Corrected Distance. Seale. 105.2350 105.2339 105.2428 105.2269 105.2576 105.2505 105.2115 105.2073 105.2182 105.2261 105.2384 105.2335 105.2257 105.2247 105.2353 105.2422 105.2320 105.1999 105.2607 105.2493 Are. 2948.78 2948.99 2949.00 2948.67 2949.09 2948.96 2948.92 2948.82 2948.66 2948.92 2948.94 2949.07 2948.81 2948.85 2948.78 2949.07 2948.91 2948.15 2949.16 2948.87 2948.87 +0.03 Observed Pos. Angle. 150° 58/ 8/! 150 58 48 150 59 8 B50) 59 I5I 2 151 151 151 I51 151 151 I51 151 I51 I51 151 151 151 151 I51 sBameWWNNHHW NHN BRWNHHPHL ND 315 Corrected Pos. Angle. 61° y! 46// 61 61 | | COD ODO O CHO OWMOWOUOMOOO (o) d dd Vd di 61 9) 19! 225 GEoe7) Observed Pos. Angle. 189° 53/ 32! 189 54 13 189 55 3 189 55 19 189 57 33 189 57 33 189 59 59 LOO) O25 189 58 30 189 58 55 189 57 12 189 57 31 189 58 14 189 58 36 189 57 27 189 57 56 189 58 51 189 59 3 189 56 § 189 56 51 Corrected Pos. Angle. 1002 3/ 4/! 100 3 28 100 4 33 100 4 30 IOO 5 25 100 100 100 100 100 100 100 100 100 100 100 100 5 40 I0O 5 Ig 100 4 38 100 4 28 BHRDRAUADAUNUNNUp = @) 100. A 46. +6 (40.08) 316 16 East 16 West | 22 Kast 22 West f 23 Kast 23 West Rutherfurd Photographic Measures. Observed Distance. 130.7987 130.7585 130.7115 130.6901 130.7306 130.6944 Means Corrected Distance. Seale. 130.8036 130.7619 130.7162 130.6950 130.7353 130.7015 3663.34 Are. 3665. 30 3664.45 3662.75 3662.29 3663.02 3662.21 Observed Pos. Angle. 155° 42/18 155 155 155 155 155 65. 5 7 37. 41 18 44 58 40 5 45 5 45 43 Corrected Pos. Angle. 65° 50! 54// 65 50 38 51 54 52 17 52) ai St Se Group of the Pleiades. 317 VIII. FINAL RESULTS. Tue final results of the photographic .measures have been ar- ranged in two tables which will now be given. The TABLE or MEAN RESULTS requires no explanation, except that in the column of remarks, P refers to the Paris catalogue of the Pleiades ;* Y, to the Yale catalogue; and B, to ARGELANDER’s Bonn catalogue. The magnitudes are those of ARGELANDER. In the computation of a —a and 6 — § from the distance and position angle, the follow- ing formule have been found very convenient and accurate :— Let o and 6 be the right ascension and declination of the central star. a and 6’ the same quantities for any other star. o the true distance between the two stars. a the true position angle, at the central star. Then if we put: M=oCOS x N=oSiNx we shall have :+ & — § =m — [4.384545 | n’ tan 6 — [8.59300] n? m (1 + 3 tan? 4) + [2.67651] m* tan 8 (1 + 3 tan’ 8) — [3.27875] n? m? tan 6 (2 + 3 tan’ 8) cos 6 (ao) — a) =n + [4.685575] n m tan 8 — [8.89403] n* tan’ 4 + [8.89403] nm? (1 + 3 tan’ 8) — [3.57960] n* m tan 6 (1 + 3 tan? 8) + [3.57960] m?* tan 6 (2 + 3 tan’ 8) where the numbers in square brackets are logarithms. * Annales de l’Observatoire de Paris, Observations, t. 29,1874. Catalogue du Groupe des Pléiades, par M. C. Wolf. + For a demonstration of these formule, see Jordan, Handbuch os Vermess- ungskunde, dritte Auflage, 1890, vol. iii, p. 319. 318 Rutherfurd Photographic Measures. If we introduce into these general formule the value of 8 for the central star 24 p, namely: 5 = + 23° 43’ 15.8, we shall have: s — 5 = m — [4.02741] n’? — [8.79144] n? m + [2.5178] n* — [3.3329] n* m’ a’ — a = [0.038334] n + [4.36678] nm — [8.21809] n° + [9.13080] n m? — [3.4592] nm : + [3-6723] mm The last two terms of both expressions are insensible. The second table, headed CATALOGUE OF THE PLEIADES, contains the final places of all the stars, as derived from the photographic measures alone, the following co-ordinates for 1873.0 having been adopted for 24 p. } a= 54° 57 3-47 8 == + 23° 43) 15.84 This adopted position produces the best general agreement be- tween the photographic positions of the several stars, and their places interpolated to 1873.0 from the Yale and Konigsberg helio- meter measures. It does not differ very greatly from the heliometer place, which is: ° me M4 ie) * UT] 54 576 arom 22% AB 5.58 ELKIN, Ras Testo 23 43° F5UGE AUWERS, Baws Ticats 23 43 15.61 NEWCOMB, according to the authority we accept for the place of Alcyone. Moreover, it is worthy of remark that the place of 24 p derived by ELKIn from his second triangulation, agrees much more closely with that adopted in the present paper, than the place given above as finally deduced by him from both his triangulations. The second triangulation gives: a = 54° 57° 3'.40 6 = 23° 43° 157.57 Possibly the difficulty of measuring very short distances with the heliometer, or the peculiar systematic errors liable to affect such Group of the Pleiades. 319 measures, have operated to diminish the accuracy of ELKIN’s de- termination of 24 p in his first triangulation by means of position angles and distances from Alcyone. More than nine-tenths of the error made in measuring its distance would enter into the right ascension of 24 p. This would account for the large difference found in the right ascensions, while the declinations from the two triangulations agree very closely. Of course the position derived from HELKIN’s second triangulation would be quite free from the sources of error just mentioned. or in this case the stars are located by measuring their distances from four fundamental stars forming a quadrilateral large enough to include nearly the whole cluster. There were therefore no short distances in this determina- tion of 24 p. The rather large discordance of the photographic position of Alcyone is perhaps due to the imperfection of the photographic images of this comparatively bright star. This discordance amounts to o”.47 in right ascension, and o”.07 in declination. if we adopt ELKIn’s position of Alcyone, which is, for 1873.0: & SS RAS NG) A sai = 22° 42) 20 caae The values given for the precessions and secular variations depend | upon the Pulcowa constants, and have been calculated with the aid of the tables given by ELKIN. 3 The third term of precession, or coefficient of (25) ice | 7 TOO — o’.059 in Right Ascension, — o’.159 in Declination. The total precession to reduce the catalogue places to 1873 -+- ¢ will therefore be: ie 200 (precession) ¢ + (sec. var.) + (third term) =) Annas N. Y. Acap. Sct., VI, April, 1892.—22 320 Rutherfurd Photographic Measures. 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ZO 66°96Sz L°3 S OS) Capra ra reze zg‘ bSqz— gf VS olz Lv-otte 1°6 14 Uf dine) Gel Ofer | zz-oSS1-+ gloz~of— 6€ VE 662 €£-601€ 0'g £ Cra tears | PAO) 7 ( 1h jt 83° 19cE— gb Iz obz Ez Qvve vg Zi ST lea) eae iy Gorse zo"OLg Si hz -Loct— BZ 1£S o98z govoz1£ tek) I “or ELot so ELQr ‘or EZQr *o'E Let G EE MMs L : "9 ae fa ‘a[Suy ee Prise 3e UREN: item Group of the Pleiades. nn ob 661£ oS fof 10'vgoz Qc ‘uouy Sv'of QI : Gz ‘uouy fo L11 u Sz ‘auohapy gibhro+ LL:-bzg — I1‘090z— LvV"1zg1— QO CE Se Bz-1zZg -F ES TGS So-gv61-++ oL'S$zlL — €1'oof1-+- re. Ogtt LL-gzi1 : 61 “uous 00'0 000 d vz vo'z~g + gt 'S9 QI *UuoUTT gi Sov1— gt €S-Sobr Lr -uouy oL7y + A 11°SZ SI ‘uouy 79607 1— tz Veehial 60'°9L$ + LY zo'L6% Srgthy — : or 407 zz Cov o00'0f S$z-++ 2 OS ec Co'brSz gL-oSvi- “ive ree). Leite 16°$QvI goes — : fv voz go'f LS OO OL Mit 61 661 £6'PQ91 Ve 2Oo gb 688 le ete glofo1 uzV (OS oS gz LL °326 ns x PP a nw nw nx n 69'0£9 be ‘uoupy ES°QLS1 fc -uouy 98 °Qr6I : IZ ‘uoupr Selah . 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Group of the Ple ZQzv'0— ggct'o— Lgzv'o— elevo— 6¢zv'0— Igzv o— LLiczv-o— Sezbv'o— SLzv'o— ogzv'o— 99zv'0— bryev'o— 6gzv'0— SLzv'o— bgzv'o— ESzv'o— g9gzv 'o— LEzv'o— o9zb'0— vozv o— Oya vSzh o— 6Szv'o— 6zzv'o— oSzv'o— Vt "IBA "09g of6$‘11-+ r119'11-+ zizg' 11+ QzzQ°11-+ 6zz9'13-+ €9z9 11+ gS€o' 11+ Sgfg'11-+ zovg'11-+ gtvo'11-+ ofSg'11-+ obSg'11-++ €zgg' 11+ Lolg'11-+ €SL9°t1-+- vol9'11-++ oLL9'11+ £169'°t1-+ 6z69'11-+ 6869 11+ oSzL"11-+- blzL114+ zoSL'11+ oSLL‘11+ gahd rip *s90001q *MOTJV ULE 10LZ°o-+ Stlz-o+ €£Qz' bgqz' g6Sz° zloz° 6g9z° SOLE. "IBA ‘099 936z'°€S+ glob €S-+ ecrp-es 69€z°€S + 9S£6'cS-+ LLve-€S+ GL1e-€S+ ozfh ES EzeE-eg zvle-es+ gSz2c°ES + 9Sv6‘7S+ GS29-€S-+ oL9£°£S + gz6b'€S+ gSor€S+ GS62°€S-+- bSS6: Clupea mirabilis Girard < . . Clupea sagax Jenyns . . Perkinsea othonops R. Ei genmann Stolephorus ringens Jenyns : Stolephorus delicatissimus Girard Stolephorus compressus Girard Plagyodus escalapius Bean . +. + +444+4+44+444+4 + + | San Diego. + ++++ te ++++t4++ + + ++ + + +++ + +++ + +> +> + + ++++ + + -- + 4a + + +44 4 + +4++4++4+ $44 $$ + + +44++ + pot +++ $+ + ++ 4+ + + + ++ + + + +++ + + $+ +- +f + + sok -- Fishes of the Pacific Coast of America. Plagyodus borealis Gill Sudis borealis Reinhardt 5 Sudis ringens Jordan & Gilbert Synodus lucioceps Ayres Tarletonbeania crenulare Jordan & Gilbert Tarletonbeania tenua E. & E. Diaphus theta E. & E. . Catablemella brachychir E. & E. Stenobrachius leucopsarum E. & E. Myctophum californiense E. & E. . Myctophum townsendi E. & E. Myctophum boops Richardson! Mallotus villosus Miiller Thaleichthys pacificus Richardson ) Osmerus thaleichthys Ayres . Osmerus dentex Steindachner Hypomesus pretiosus Girard Hypomesus olidus Pallas Oncorhynchus gorbuscha Walbaum Oncorhynchus kisutch Walbaum . Oncorhynchus tchawytcha Walbaum . Oncorhynchus keta Walbaum Oncorhynchus nerka Walbaum Fundulus parvipinnis Girard Sidera mordax Ayres : Ophichthys triserialis Kaup . Myrichthys tigrinus Girard . Nemichthys avocetta Jordan & Gilbert Ptilichthys goodei Bean Tylosurus exilis Girard : . Scomberesox brevirostris Peters Hemirhamphus rose Jordan & Gilbert Exoceetus californicus Cooper : ast Siphostoma punctipinne Gill ° Siphostoma californiense Storer Siphostoma griseolineatum Ayres ; Siphostoma auliscus Swain . Siphostoma barbarz Swain & Meek Siphostoma leptorhynchum Girard Hippocampus ingens Girard Aulorhynchus flavidus Gill Gasterosteus microcephalus Girard Gasterosteus aculeatus cataphractus Pallas » Mugil cephalus Linnezus ° Menidia tenuis Ayres . Atherinopsis californiensis Girard Atherinops affinis Ayres + | fnsenada. + ++t+ + ett + F444+4++ + ++ + + + | San Diego. | Cortes Banks. | San Pedro. a+ ++ + 4- aa | Santa Barbara. | Port Harford. | Monterey. | San Francisco. | Columbia R. +--+ | Puget Sound. + | Alaska $4 + ++ ++4++ + + be Eb + +/+)4/+ +/+ 1+ + ss +++++ + $+ + ++t++4++ ++ — + + ++ + 1 Myctophum protoculus Gilbert, 584 f. (?) Described to us by fishermen. 2 Oregon, Adair Bay. 99 100 101 102 103 104 North of Cerros Island. Sphyrena argentea Girard ? Polynemus approximans Lay & Bennett! Ammodytes personatus Girard Ammodytes alascanus Cope Echeneis naucrates Linnzus Remora remora Linneus Xiphias gladius Linneus ? Trichiurus lepturus?2 105 106 107 108 109 110 iJ 112 113 114 115 116 117 118 118) 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139: 140 141 142 143 144 1 P. californiensis Thominot, California. 3 Washington. Scomber colias Gmelin . Scomberomorus maculatus Scomberomorus concolor Lockington Sarda chilensis C. & V. : Germo alalonga Gmelin : Euthynnus pelamys Linneus Trachurus picturatus Bowdich Caranx caballus : Seriola dorsalis Gill Stromateus simillimus Ayres Brama raji Bloch : Icosteus znigmaticus Lockington Icichthys lockingtoni Jordan & Gilbert Acrotus willoughbyi Bean Paralabrax clathratus Girard Paralabrax maculofasciatus Steindachner Paralabrax nebulifer Girard . Steriolepis gigas Ayres Xenistius californiensis Steindachner Anisotremus davidsoni Steindachner Girella nigricans Ayres : : Czesiosoma californiense Steindachner Seriphus politus Ayres . Cynoscion parvipinne Ayres Cynoscion nobile Ayres Scizena saturna Girard . : Roncador stearnsi Steindachner ° Genyonemus lineatus Ayres Umbrina roncador Jordan & Gilbert Menticirrhus undulatus Girard . Gerres cinereus Walbaum : : Hysterocarpus traski Gibbons : . Abeona minima Gibbons Abeona aurora Jordan & Gilbert Brachyistius frenatus Gill : : Brachyistius rosaceus Jordan & Gilbert Cymatogaster aggregatus Gibbons Hyperprosopon analis A. Agassiz . Hyperprosopon argenteus Gibbons Hyperprosopon agassizii Gill r | Ensenada. + + + + “- +++++44 +44 + +- Fo EE tt + + | San Diego. | Cortes Banks. + | San Pedro. + + +4 ++ $+ + + + ++ +4+++4+4+444 $F F+ + + + REE B/ 5) 8| s/s rela +) j++ --- ae + 1. +. - rae +| |+ +) j++ 7 +/+ ++ +|+ + air 4 +| + + +) E+ + +) + +\+/-+/+ +, +/+ + + +) -+\+ a. — = +++)+ +/+ +) H+ sa +/+/+/+ + + +/+\+/+ +I+\+/+ 353 | Puget Sound. | Alaska. + +o of 2 Described to us by fishermen. ‘Damon, Washington. 354 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 ae 172 173 174 175 176 wg 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 Fishes of the Pacific Coast of America. Holconotus rhodoterus Agassiz Amphisticus argenteus Agassiz Hypsurus caryi Agassiz Embiotoca jacksoni Agassiz . Phanerodon laterale Agassiz Phanerodon orthonotus E. & E. Phanerodon atripes Jordan & Gilbert Phanerodon furcatum Girard Rhacochilus toxotes Agassiz Damalichthys argyrosomus Girard Trochocopus pulcher Ayres . Platyglossus semicinctus Ayres Pseudojulis modestus Girard Pomacentrus rubicundus Girard . Chromis punctipinnis Cooper Chezetodipterus zonatus Girard Trachypterus altivelis Kner . - Bathymaster hypoplectus Gilbert . Bathymaster jordani Gilbert Bathymaster signatus Cope . Caulolatilus princeps Jenyns Gobius nicholsi Bean Gobius dalli Gilbert . Gillichthys mirabilis Cooper . Lepidogobius gilberti E. & E. Lepidogobius Y-cauda Everman . Lepidogobius lepidus Girard Lepidogobius newberryi Girard? Clevelandia ios Jordan & Gilbert Clevelandia longipinne Steindachner Typhlogobius californiensis Steindachner Pleurogrammus monopterygius Pallas: Hexagrammus ordinatus Cope Hexagrammus asper Steller . Hexagrammus scaber Bean . Hexagrammus superciliosus Pallas Hexagrammus decagrammus Pallas Ophiodon elongatus Girard Zaniolepis latipinnis Girard Zaniolepis frenatus E.& E. . Oxylebius pictus Gill Myriolepis zonifer Lockington Anaplopoma fimbria Pallas Sebastodes paucispinis Ayres Sebastodes goodei E. & E. Sebastodes alutus Gilbert Sebastodes flavidus Ayres Sebastodes serranoides EH. & E. Sebastodes melanops Girard | Ensenada. + + + FHEEEEEEHEHE EH + | San Diego. Sess ae o + ao ++ 44 +o | Cortes Banks, +> ed | San Pedro. epee +++ +++-+ ++-+-+-+ | Santa Barbara. +++44++ + 1 Locality not definitely given. | Port Harford. ++ E+ + +++++ +++-++ | Monterey. a + +++ $4444 +++ 2 Tomales Bay, Artesian well at Santa Monica. +++ $44 4 F444 + re ++-++-+ | San Francisco. ++ | Columbia R.’ alba + + ++ + + ++ | Puget Sound. — | Alaska. ptt a-— North of Cerros Island. 390 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 ' 210 210 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 path 228 229 230 Dail 232 233 234 235 236 237 238 239 o SO Sebastodes ciliatus Tiles Sebastodes mystinus J. & G Sebastodes entomelas J. & G. Sebastodes rufus E. & E. Sebastodes ovalis Ayres Sebastodes proriger Jordan & Gein Sebastodes atrovirens Jordan & Gilbert Sebastodes pinniger Gill Sebastodes melanostomus KE. & E. Sebastodes miniatus Jordan & Gilbert Sebastodes rupestris Gilbert Sebastodes ruber Ayres Sebastodes constellatus Worden & Gilbert Sebastodes rosaceus Girard i Sebastodes rhodochloris Jordan & Gilb? wu Sebastodes eos E. & E. Sebastodes umbrosus J. & G. , 4 Sebastodes zreus E.& E. . , Sebastodes chlorostictus J. & G. Sebastodes gilli K. Sebastodes elongatus Ayres Sebastodes levis E. & E. Sebastodes rubrovinctus Jordan & Gilb. Sebastodes auriculatus Girard Sebastodes rastrelliger Jordan & Gilbert Sebastodes caurinus Richardson Sebastodes vexillaris Jordan & Gilbert Sebastodes maliger Jordan & Gilbert Sebastodes carnatus Jordan & Gilbert Sebastodes chrysomelas Jordan & Gilb. Sebastodes nebulosus Ayres Sebastodes serriceps Jordan & Gilbert Sebastodes nigrocinctus Ayres Sebastodes zacentrus Gilbert Sebastodes saxicola Gilbert Sebastodes diploproa Gilbert! Sebastodes sinensis Gilbert, 870 ft. Sebastolobus alascanus Bean, 960 ft.2 Synchirus gilli Bean : é Scorpena guttata Girard ° Hemitripterus americanus cavifrons Lockington Hemitripterus marmoratus Bean , Ascelichthys rhodorus Jordan & Gilbert Psychrolutes paradoxus Giinther Artedius lateralis Girard Artedius notospilotus Girard Sebastodes aurora Gilbert, 1600 ft. Sebastodes introniger Gilbert, 1600 ft. Sebastolobus machrochir Giinther. Barclay 8d., Brit. Columbia. | Santa Barbara. | Port Harford. | Ensenada | San Diego. | Cortes Banks. | San Pedro. | Monterey. | San Francisco. | Columbia R. | Puget Sound. + | Alaska. + + +++ + $444 ++ +4+++ 4 +++ ++ +- + + + + + + + + +++ + + F~ ~+ +++ + + oft + F4++444+4+ + $44 4+ +H $+ + ++ + + ++tt++4+4+ +++ 4 + +++4+++4+ ++ + + (ge ae ee + +444 4 ++ + +44 + +4+4++ * South to Cape Mendocino. 356 Fishes of the Pacific Coast of America. ave iges AS g)e! sia] s 20 isi) I shi) is a] 85/8 a 240 Artedius fenestralis Jordan & Gilbert 241 Dasycottus setiger Bean, p. 42 242 Icelus bicornis Reinhardt : : 243 Icelinus australis E.& FE. . ; F -- 244 Icelinus quadriseriatus Lockington 245 Icelinus cavifrons Gilbert, 44-30 f. : - 246 Icelinus filamentosus Gilbert, 55-145 f. + 247 Icelinus tenuis Gilbert, 45-150 f. + 248 Icelinus fimbriatus Gilbert, 36-145 f. + 249 Icelinus oculatus Gilbert, 124 f. “+ 250 Chitonotus megacephalus Lockington 251 Chitonotus pugetensis Steindachner 252 Paricelinus hopliticus E.& E. . 3 + 253 Radulinus asprellus Gilbert, 43-77 254 Gymnacanthus pistilliger Pallas . 255 Gymnacanthus galeatus Bean . 256 Acanthocottus polyacanthocephalus Pallas 257 Acanthocottus tzeniopterus Kner - 258 Acanthocottus humilis Bean 259 Acanthocottus axillaris Gill 260 Acanthocottus platycephalus Pallas 261 Acanthocottus verrucosus Bean . 262 Acanthocottus niger Bean . 263 Acanthocottus quadrifilis Gill 264 Enophrys dicerans Pallas 265 Enophrys bison Girard : : ; 266 Liocottus hirundo Girard . } : == oe 267 Triglops pingeli Reinhardt . 268 Prionistius macellus Bean - : 269 Leptocottus armatus Girard : ~i++i++i+ 270 Hemilepidotus spinosus Ayres 271 Hemilepidotus jordani Bean =a 272 Hemilepidotus hemilepidotus Tilesius 273 Melletes papilio Bean 274 Scorpznichthys marmoratus Ayres 275 Oligocottus analis Girard . Ae 276 Oligocottus maculosus Girard 277 Oligocottus globiceps Girard 278 Blepsias cirrhosus Pallas 279 Blepsias bilobusC.& V. . 280 Nautichthys oculofasciatus Girard 281 Rhamphocottus richardsoni Giinther . 282 Xenochirus triacanthus Gilbert? . 283 Xenochirus latifrons Gilbert, 61-158 284 Aspidophoroides inermis Giinther 285 Aspidophoroides giintheri Bean 286 Siphagonus barbatus Steindachner +4. 1 No definite locality given. 2 Bathyagonus nigripinnis Gilbert, 477 f. 2 Xenochirus pentacanthus Gilbert, 178 f. | Port Harford. | Monterey. + + -- fe + +++ 4+ + ++ | San Francisco. | Columbia R. + | Puget Sound. + + a+ 4p = See Stee +- | Alaska. aH. ++t+44 FE FOF FFF+HHE SHH FH ++ ge Ee En a ma North of Cerros Island. 357 | Ensenada | San Diego. | Cortes Banks. | San Pedro. | Santa Barbara. | Port Harford. | Monterey. | San Francisco. | Columbia R. | Puget Sound. + | Alaska. 287 Brachyopsis rostratus Tilesius 288 Brachyopsis verrucosus Lockington . 289 Brachyopsis xyosternus Jordan & Gilbert =| 290 Bothragonus swani Steindachner 291 Odontopyxis trispinosus Lockington . + 292 Podothecus vulsus Jordan & Gilbert 293 Podothecus acipenserinus Tilesius 294 Prionotus stephanophrys Lockington 295 Careproctus gelatinosus Pallas 296 Cyclogaster pulchella Ayres : : + 297 Cyclogaster gibba Bean ; Fi 298 Cyclogaster calliodon Pallas 299 Cyclogaster cyclopus Giinther 300 Cyclogaster mucosa Ayres! : 301 Cyclopterichthys ventricosus Pallas 302 Cyclopterichthys stelleri Pallas 303 Eumicrotremus spinosus Miiller 304 Gobiesox mzandricus Girard . : +/+ 305 Gobiesox rhessodon R. Smith 306 Gobiesox eigenmanni Gilbert 307 Porichthys margaritatus Richardson 308 Trichodon trichodon Tilesius 309 Trichodon japonicus Steindachner? 310 Cryptotrema corallinum Gilbert : + 311 Paroclinus rothrocki Bean. (Between Nagai and Koniuski Islands) : 312 Plectobranchus evides Gilbert . : + 313 Hypsoblennius gentilis Girard . : 314 Hypsoblennius gilberti Jordan . . [+ 315 Neoclinus satiricus Girard . 316 Neoclinus blanchardi Girard : : 317 Clinus evides Jordan & Gilbert. . i+ 318 Heterostichus rostratus Girard 319 Auchenopterus integripinnis R. Smith 320 Chirolophus polyactocephalus Pallas 321 Murznoides ornatus Girard - . 322 Murznoides maxillaris Bean 5 . 323 Murzenoides dolichogaster Pallas 324 Apodichthys flavidus Girard : 325 Apodichthys fucorum Jordan & Gilpere 326 Anoplarchus atropurpureus Kittlitz 327 Xiphister chirus Jordan & Gilbert 328 Xiphister mucosus Girard 329 Xiphister rupestris Jordan & Gilbert 330 Stichzus punctatus Reinhardt “ 331 Cebedichthys violaceus Girard . a i Salat 332 Notogrammus rothrocki Bean 333 Lumpenus anguillaris Pallas 334 Delolepis virgatus Bean + + ++ ++ = + + + + + +++ +4444 4 + ot =p + 4444414 + +++ + +4+4++ ++ fot 4a t= bette + + + +++ + +tt+++ + +++ $4444 $444 be 1 Paraliparis rosaceus Gilbert, 984 f. 2 (Gillellus semicinctus Gilbert) loc. ? (Gillellus arenicola Gilbert). 3 San Quentin. 358 Fishes of the Pacific Coast of America. | San Pedro. Monterey. erties | Santa Barbara. | Ensenada | San Diego. | Cortes Banks. | Port Harford. | San Francisco. | Columbia R. | Puget Sound. + | Alaska. 335 Anarrhichas lepturus Bean 336 Anarrhichthys ocellatus Ayres 337 Lycodopsis pacificus Collett 338 Lycodopsis paucidens Lockington 339 Lycodes coccineus Bean A 340 Lycodalepis turneri Bean 341 Gymnelis viridis Fabricius 342 Scytaliscus cerdale Jordan & Gilb. ? Fierasfer dubius Putnam . ° 343 Otophidium taylori Girard ‘ + 344 Dinematichthys marginatus Ayres 345 Gadus callarias Linneus : 346 Pleurogadus navaga Koélreuter 347 Microgadus proximus Girard 348 Pallachius chalcogrammus Pallas + 349 Pallachius saida Lepechin . 350 Merlucius productus Ayres ; + 351 Macrurus acrolepis Bean 352 Atheresthes stomias Jord. & Gilb. 353 Hippoglossus hippoglossus L. 354 Lyopsetta exilis Jordan & Gilbert 355 Eopsetta jordani Lockington ; 356 Hippoglossoides elassodon J.&G. 357 Psettichthys melanostictus Girard 358 Hippoglossina stomata E. & E. 359 XKystreurys liolepis Jordan & Gilb. 360 Paralichthys californicus Ayres 361 Citharichthys sordidus Girard 362 Citharichthys stigmeus J. & G. 363 Pleuronichthys decurrens J. & G. 364 Pleuronichthys verticalis J. & G. 365 Pleuronichthys ccenosus Girard 366 Hypsopsetta guttulata Girard 367 Parophrys vetulus Girard . 368 Inopsetta ischyra Jordan & Gilbert 369 Isopsetta isolepis Lockington 370 Lepidopsetta bilineata Ayres 371 Lepidopsetta umbrosa Girard 372, Limanda aspera Pallas 373 Pseudopleuronectes pinnifascia- tus Kner. 374 Platessa quadrituberculata Pallas 375 Liopsetta glacialis Pallas 376 Platichthys stellatus Pallas - + 377 Microstomus pacificus Lockington 378 Symphurus atricauda J. & G. 379 Sphezroides politus Girard 380 Diodon hystrix Linneus 381 Chilomycterus californiensis E. 382 Mola mola L. ct ++— + + + + + +74 + ++ ++ ++ +4+4+++ + ++ + + ++ +++ + +4+4++ + 4— + ++ +++ +++ +4+++ ++ + + 44+ ++ + 44+ +> ++ +4+4+++4+4+4+ + +444 +4+4++ + +++ + 4 +- i+ 82/117/49/149/156|25/ 106/109 Si + +++ 2 | = Totals , A A ; Bioomineton, INDIANA, May 30, 1892. VII.— Coleopterological Notices. IV. BY THOS. L. CASEY. Read May 9, 1892. The following pages are principally confined to studies in our Rhynchophora, taken up some time since for the sole purpose of distributing the nondescript material, forming a considerable part of my cabinet, with a measurable degree of scientific order and succession. As usual in such cases, the compass of the work gradu- ally outgrew the limited and personal objects had in view at the beginning, and the investigations in several genera and groups became sufficiently advanced to suggest the propriety of publishing them, with the hope that they might prove useful to others similarly engaged. There is but little further to state in way of introduction. The studies have been limited for the greater part to those groups which appeared to stand most in need of revision, either by reason of the large number of specific forms recently brought to light, especially by skillful collecting in our western country, or because of apparent misconception regarding generic identity, as in the case of the group Desmorhines of LeConte. This section of the Erirhinini corre- sponds with the Smicronychina of the European fauna, where it is represented only by the genus Smicronyx, characterized by, its con- nate tarsal ungues and the basal constriction of the rostrum. In our own fauna it is rather more abundant and diversified. The Barini, or Baridiides, to which the greater part of the pre- sent paper is devoted, constitute probably the largest tribe of American Curculionide, and, in South America, form the most varied and characteristic element of the family, possibly excepting the Zygopini. It is interesting to note in this connection, that the recent researches of Mr. S. H. Scudder on the fossil beetle fauna of Annas N. Y. Acap. €c1., VI, Aug. 1892. 360 Coleopterological Notices, IV. several of our western Tertiary horizons seem to show that the relative importance of the Barini in America dates from some- what remote geological epochs. New York, May 9, 1892. CURCULIONID 4. ERIRHININI. DORYTOMUS Steph. The separation of this genus from Erirhinus is largely a matter of convenience, as the femoral teeth, constituting the principal dis- tinguishing feature, are subject to great specific variations in devel- opment, sometimes being barely distinguishable even on the anterior femora, where they are generally most distinct. The genus presents also considerable diversity of structure, and a very noticeable lack | of uniformity in the degree of sexual disparity, the three species of the first group having extremely marked sexual differences pervad- ing the entire anterior portion of the body. In the second group, also consisting at present of three species, the sexual divergence is still strong, although much less marked and affecting only the beak and antenne, while in the third and by far the largest section the sexual differences become very feeble. In Dorytomus the body is oblong or oblong-oval, generally some- what stout, more or less flattened above and frequently subinflated behind, strongly punctured, especially in the elytral striz, and with pubescence which is composed usually of short robust decumbent hairs condensed in feebly defined spots, or, rarely, of scales similarly uneven in distribution, generally without, but occasionally with, erect bristling sete in addition. The colors are usually rufo-testa- ceous in different degrees of intensity, rarely becoming piceous or black and more frequently paler ochreous or flavate. The tarsal claws are slender, divaricate, very strongly arcuate, swollen inter- nally near the base but never distinctly toothed. Other structural characters will be referred to in the table given below. The species are rather numerous, generally well characterized structurally but variable in coloration. They belong especially to the arctic fauna, extending southward in North America as far as Coleopterological Notices, IV. : 361 Arizona, and probably also throughout the elevated central region of Mexico. The following tabular statement may possibly facilitate the iden- tification of the greater part of those species at present known to collectors :— Anterior legs elongated in the male; beak long, slender, strongly, evenly arcuate at least in the female, the antenne inserted near the middle in the latter sex ; femoral teeth minute; species large and homologous with PCM EOE AM LOM OUMLATUSS is es se elcid coeised ves oes 00 vec Hee coe daaicoe oes ens cov soo sssened Anterior legs not elongated in sis aie : peat oe aa slender: much longer and with the antennez inserted at or near the middle in the female; species sian erate ly WAIN eh obadea5cg60 hep Boa quo Gubicou CHU DCE eonlod HCN COD UB Ocono EHS ecuecaEASRAaccnern Cc, Anterior legs not ae in he male; beak shorter, stouter and more nearly straight, the antenne inserted. near apical third in the male and but slightly less apical in the female; species smaller..........cceccecesse eee coe ceed 2—Elytra with long sparse erect and bristling sete ; beak in the female much longer than in the male; basal Na of the anterior tarsi extremely elongate in the latter sex. basin ee ae Sones Gah seeks 1 inzqualis Elytra with short and more Hingeret Babe sete ; peat noe ih longer in the female; basal joint of the anterior male tarsi subequal in length to the BE HMAM INGO vale/siso'e'ss ct alelsa\va son\sleacua/seeicee'ecs nagnow 6665 2 brevisetosus Elytra devoid of fava aetase mae ee very eeu foe in the female ; basal joint of the “hemi male tarsi a little shorter than the remainder. 3 mucidus #—Anterior femur of the male with a rather small, very acute tooth. Body piceous-black, the antenne rufous; elytra distinctly and gradually MUMBAE COO IADING «\.04:cir0icee scieisvnisinnisisa senievveee ess ove csr cerieececsconseneee4 MACLCOMLIS Body much broader, pale ochreous-testaceous Minelid A the sterna black- ish; elytra subparallel .. o6 hogiosA coo NEO ROdocubLS ue odNES .) amplus Anterior femur of the male te a ae i Scbannlan lout ; Teenie in that sex shorter and stouter; body dark rufo-testaceous, variegated with uneven GAGES OUS ea cc cn asviese css ses cee ves sev-sesives corsesessstsvscascceescsO DALVICOLLs 4—Elytra with sect itistling sete E000 HOA.O0O OC0dOo obs Ses notrooGb00 906 SyoloNd ode Had BEMICNO SEBO Elytra without erect sete.. 59. 000.099 nob 896 GoeOBN GOS NA doo oUE Noe coo Nop Go Osedeb HonIbuo GecbaN #—Prothorax distinctly damimielea perina the apex. Body generally dark in color; prothorax less transverse ; he sete sparse but long and conspicuous.. oppo quosde conde Soo nob ono nocnenOoe EA ASL eID IBY Body pale ochreous-flavate ; es stole “na none ec. erect sete more numerous and much shorter..............ss0eeee MISPIGUS Prothorax not, or but just visibly and broadly constricted near the apex. Larger species, the prothorax rather large, strongly transverse and finely punctate; beak longer; erect sete short and abundant, somewhat re- PEI oR eo eaciseicinaisiacalcan asis/oanideeieiicisnelse ccs. snesae sasieve sends oes 9 hirtus Small species; prothorax small, coarsely punctate ; pean very Wetec barely as long as the prothorax ; erect sete long, finer and sparser. 10 filiolus 362 . Coleopterological Notices, IV. 6—Vestiture generally coarse but hair-like, more or less condensed in uneven mactlee ON the, Ely trae sce sac sie vecsencseewiseiescieasinne ssmesecnalcdn spe veslsen eee en Vestiture distinctly ceeiibem, dense, more or less and variegated ul Marmorate OM, the ClYVLT As... ./ceisio0eesniese gan 'cinnisicasesinecuinslsae seceea ease eee mentee 4 —Beak punctate but not at all sulcate or carimulate...........scceccecccrcee cee eee Beak punctate and with more or less distinct grooves and fine carine..........9 S— Body black, densely clothed with gray pubescence...11 mannerheimi Body pale rufo-testaceous, sparsely clothed with long white hairs; elytra with a triangular black basal cloud and a Wier piceous spot, the latter divided by the suture.. wd bilevel elisisisotatestesaneme 12 nubeculinus 9—Prothorax strongly ponieterciieal behind the apex, bine latter more or less broadly su btubulatess.....1hssessauecs dips dsas eestor ebeeneeabene ae ae eae eee Prothorax not, or but very feebly constricted behind the apex ..............0...11 10—Coloration uniform or very nearly so throughout the upper surface. Condensed pubescent areas of the elytra large and suffused. Color rufo-testaceous. _ Body less robust, darker, testaceous, more inflated behind, the beak longer and more slender, blackish, the eyes large and more approxi- VALS, DOW sieincisleio snia ase arireeeinaeisentsnsadnienelanstisleMmsie bite 13 luridus Body larger, more once and more paraitey paler ve more flavate in color, the beak shorter, decidedly stouter, always ae the eyes ' SHINE el cus dos qumton sononcdaqdeoHapwestos cedcod Cop cob don acnosee 14 rufulus Color black ; ope narrow ; Geel ae long, Paracas more than one- half as long as the Ay tne in the female...............15 Cumneatulus Condensed pubescent areas very small and remote, each consisting of several longer white hairs; strial punctures very coarse..........16 alaskamus Coloration not uniform; elytra with a more or less distinct and pale sublateral vitta. -Sutural notch triangular, deep and clearly limited, each elytron being acute and minutely subprominent at apex; condensations of the elytral vesti- ture almost Obsolete .......c0ceesesescecescscecssceccsercrsreeel? MAPrZINATUS Sutural notch subobsolete, each elytron broadly rounded; elytral conden- sations well marked. mi Pronotum with four small condensed spots in a posteriorly arcuate trans- verse line; head with a deep frontal fovea..............15 imdifferens Pronotum without trace of the four spots transversely arranged, but with two approximate, sparsely pubescent vitte along the middle, and a lateral vitta, dilated at the middle and inclosing at this point a small subglabrous spot; frontal fovea obsolete.............19 vagenotatus 1i—Prothorax strongly transverse, with the apex much narrower than the Prothorax small and but slightly transverse, the apex nearly as wide as the DAIS waz onesies svatae sinbiasininys's ain elnm\p''y-oint\n.ihlebversian etseleainye maine ciaiee Menlsemtar ete aa dees ae eee ee neeees 42-célor Winn pale, ' Small species, pale ochreous-testaceous throughout, with a broad indefinite and slightly darker subsutural vitta on each elytron, from the base nearly to the apex ; punctuation coarse; vestiture rather long, coarse. 20 rufus ) { _ Coleopterological Notices, IV. 363 Larger species, broader, more depressed, pale ochreous-testaceous, the head and beak piceous-black, also with a feeble indefinite subsutural cloud on each elytron from before the middle nearly to the apex ...21 fusciceps Coloration dark. Pronotum very coarsely, deeply punctate; coloration nearly uniform. 22 brevicollis Pronotum finely, densely punctate, paler along the base and apex; each elytron with a blackish cloud in the middle toward base and another toward APeX .... eee st cstessecsscssesssceeee dd SUDSIENATUS 13—Beak pale, blackish eee apex.. sidaeBenatanternn 24 longulus 14—Pronotum with a broad densely squamose ities at ace side. 25 squamosus Pronotum with four median spots forming a transverse rectangle, the two anterior continued each feebly to the apex, the two posterior to the base, also with a small spot at each side between the rectangle and the lateral margin, the spots composed of long robust hairs; elytral vestiture squami- form and strongly marmorate .......0.cessecevsevcesseceeeeee 20 IMALPFMOFreUS There are two other species, apparently belonging to this genus and recently described by Dietz (Trans. Am. Ent. Soc., X VIII, pp. 262, 265)" under the names Alycodes dubius and LElleschus angustatus. I have not studied the types of these species, but dubsus seems to be allied to the normal eastern forms such as indifferens ; angustatus is almost certainly closely related to squa- mosus, a small narrow species, with the femoral teeth very small, the anterior alone distinct. In regard to Hrirhinus lutulentus and rutilus of Boheman, but little can be stated positively. The description of the latter seems to apply very well, however, to Anthonomus nubilus Lec., while LH. lutulentus may possibly be the same as Anchodemus angustus Lec. It is more than probable that the true affinities of Hlleschus lie strongly in the direction of Dorytomus, and that the toothed claws form an exception of no more relative importance than the simple claws of certain of the Anthonomini. It will in fact be found 1 It should be stated in passing, that the genus Euclyptus of Dietz (1.c. p. 271) seems to be identical with Phyllotrox Sch. This genus is widely distri- buted throughout North America and at least the northern part of South America, also in the intervening islands. Tothe nine species mentioned in the Munich Catalogue, should be added nubifer and ferrugineus Lec., and testuceus Dietz ; there are several other species in my cabinet still undescribed. Phyllotrox is one of the characteristically American genera of true Erirhinini, and is decidedly out of place in the Anthonomini. Annaus N. Y. Acan. Scr., VI, Aug. 1892.—25 364 Coleopterological Notices, IV. extremely difficult to maintain the Erirhinini, Anthonomini and Tychiini as satisfactory tribes, their limits being not at all well defined under the present scope. It would be more in accordance with natural affinities to unite them, and the resultant tribe might then be readily subdivided into numerous well-marked groups or subtribes. 1 D. inzqualis n. sp.—Oblong, slightly subcuneate, feebly convex ; integuments black, obsoletely mottled with testaceous, especially laterally ; vestiture rather dense but not altogether concealing the shining surface, somewhat fine, moderately long, subrecumbent, finely and confusedly mottled paler and darker, with numerous long erect and bristling sete. Head witha large deep frontal fovea, the eyes large, feebly convex ; beak long, equally, evenly and rather strongly arcuate throughout in both sexes, two-thirds longer than the prothorax, deeply punctate and longitudinally sulcate, with the antenne inserted rather beyond apical two-fifths in the male, slightly more slender, very much longer, fully two-thirds as long as the body, cylindrical, finely but closely seriato-punctate, with the antenne inserted at the middle in the female. Prothorax in the male large, transversely oval, fully as wide as the base of the elytra and more than one-third as long as the latter, in the female much smaller and more transverse, distinctly narrower than the base of the elytra and scarcely more than one-fourth as long as the latter; punc- tures rather coarse, deep, moderately dense. lytra with the sides straight in basal two-thirds, nearly parallel in the male but feebly divergent from the humeri in the female, obtusely parabolic in apical third; strie slightly im- pressed, the punctures coarse, very deep and approximate; intervals nearly flat, finely, not densely punctate. Abdomen finely and densely punctate. Length 5.4-6.5 mm.; width 2.3-2.8 mm. California (Los Angeles). he sexual differences in this species are more pronounced by far than in any other within our fauna. In the male the basal joint of the antennal funicle is but slightly longer than the next two, the anterior legs slender and very long, the femur and tibia each one- half as long as the entire body, the latter evenly, feebly arcuate and slightly spinulose along the inner margin, and the corresponding tarsi have the basal joint longer than the remainder and but slightly shorter than the prothorax, with the inner edge finely and unevenly serrulato-granulose. In the female the second joint of the funicle is slightly longer but not as long as the next three, and the anterior legs are normal, the tarsi stout, with the basal joint shorter than the remainder. This species has been confounded with mucidus heretofore, but differs greatly as may be judged by the description. Coleopterological Notices, IV. 365 2D. brevisetosus n. sp.—Oblong, very feebly convex above; integu- ments rather shining, piceous-black, confusedly mottled with rufous, especi- ally toward the sides; vestiture rather dense, moderate in length, subrecum- bent, confusedly mottled and with numerous very short erect sete. Head very densely pubescent, especially above the eyes and with a deep frontal fovea; eyes large, feebly convex; beak in the male two-thirds longer than the prothorax, feebly arcuate, coarsely, deeply, rugosely punctate and longi- tudinally sulcate, with the antenne inserted slightly beyond the middle, the basal joint of the antennal funicle as long as the next three; in the female the beak is a little more slender, evenly and strongly arcuate, much more than twice as long as the prothorax, smooth, more finely, sparsely punctate, with the antennz inserted a little behind the middle, the basal joint of the funicle as long as the next four. Prothorax not coarsely, deeply, somewhat sparsely punctate, with an impunctate median line; in the male it is trans- versely oval, slightly narrower than the elytra and about one-third wider than long, in the female smaller, more transverse, more broadly truncate at apex, much narrower than the elytra and about one-half wider than long. Elytra three-fourths longer than wide, the sides straight and parallel in the male or feebly divergent from the base to apical third in the female, the apex obtusely rounded, the sutural notch rather large and distinct; strial punc- ture rather large, deep, closely approximate; intervals finely, somewhat dis- tinctly and closely punctate. Abdomen rather strongly, not densely, unevenly punctate. Length 5.7-7.0 mm.; width 2.3-2.9 mm. Arizona. This species is closely related to mucidus, but may be distin- guished by the slightly longer beak with the antenne a trifle less apical in insertion in both sexes, by. the abundant, erect but short setee, bristling throughout the dorsal surface, and by the relatively more elongate anterior legs of the male, the basal joint of the tarsus in that sex being about equal in length to the remainder; it is dis- tinctly shorter in mucidus. 3 D. mucidus Say.—Cure. 14, Ed. Lec., I, p. 277 (Erirhinus); Gyll.: Sch. Gen. Curc., III, p. 291; Lec.: Proc. Am. Phil. Soc., XV, p. 164. Oblong, flat above, convex at the sides, somewhat densely clothed with short robust pointed and subrecumbent hairs, which are whitish in color and with barely a trace of sparse and extremely short semi- erect setze toward apex only; integuments black and rufo-testaceous confusedly mottled. Beak slender in the male, feebly arcuate, coarsely, densely, rugosely striato-punctate, about one-half longer than the prothorax, with the antenne inserted at apical two-fifths, in the female more strongly arcuate, cylindrical, smooth, finely, less densely, confusedly punctate, twice as long as the prothorax, with 366 Coleopterological Notices, IV. the antenne inserted at the middle; antenne slender, with the basal joint of the funicle about as long as the next four together, the second as long as the next two, differing but slightly in the sexes. Prothorax larger and longer in the male than in the female, one- half wider than long and but slightly narrower than the elytra in the former, three-fourths wider than long and much narrower than the elytra in the latter; sides strongly arcuate, rounded and con- vergent but not at all constricted near the apex; disk strongly but not very coarsely punctate, the punctures distinctly separated. Elytra parallel, ogival toward apex, from two-thirds to three- fourths longer than wide, the strial punctures coarse, deep, moder- ately close-set, the intervals feebly convex, minutely, feebly, rather sparsely punctulate. Length 5.0-6.5 mm.; width 2.0-3.0 mm. Canada, Indiana and Nebraska. The sexual differences are slightly less pronounced than in brevisefosus and very much less so than in tnequalis, and this species is readily distinguishable from both by the absence of erect sete. In the male the anterior legs are elongated, but the basal joint of the tarsus is shorter than the remainder and about one-half as long as the prothorax. 4 D. laticollis Lec.—Proc. Am. Phil. Soc., XV, p. 164. Piceous-black, variegated with small distant spots of rufo-piceous, polished, the vestiture sparse, consisting of short robust and recum- bent hairs, condensed in numerous small paler spots and also toward the sides of the prothorax, without trace of erect sete. Head strongly, not very densely punctate and witb a deep frontal fovea ; beak very slender, cylindrical, in the male strongly arcuate, straight toward base, rather finely but deeply, linearly punctate and fully one-half as long as the elytra, very finely, sparsely and inconspicu- ously setose, the antenne inserted just behind apical third, the basal joint of the funicle fully equal to the next three. Prothorax small, transverse, three-fourths wider than long, the sides abruptly rounded and strongly convergent anteriorly, the apex very briefly tubulate and broadly arcuate, three-fourths as wide as the base; punctures deep, perforate but not very large, rather sparse, the median im- punctate area very feebly defined toward the center only; apical margin rufescent. Elytra at base nearly one-third wider than the prothorax, almost four times as long, slightly wider behind the middle, broadly constricted behind the humeri, the strial punctures coarse, deep and close-set; intervals nearly flat, finely but strongly, Coleopterological Notices, IV. 367 rather closely punctate. Abdomen finely, not very densely punc- tate. Length 4.4 mm.; width 1.9 mm. The description is drawn from a male taken in Michigan. It also occurs at Lake Superior and in Iowa according to LeConte. 5 D.amplus n. sp.—Oblong, feebly convex, robust, strongly shining, pale brownish-flavate throughout ; vestiture very sparse, consisting of small robust and recumbent hairs, feebly condensed in subtransverse wavy lines on the elytra behind, also denser at the humeri; erect sete completely wanting. Head finely but deeply and rather densely punctate and setose, the frontal fovea small but deep; beak in the male slender, strongly arcuate, evenly eylindrical, finely but deeply, rather closely lineato-punctate, very slightly more than one-half as long as the elytra, with the antennez inserted near apical two-fifths, first funicular joint as long as the next three, second equal to the following two combined. /Prothorax small, transverse, nearly three- fourths wider than long, the sides subparallel and strongly, almost evenly arcuate, not very abruptly rounded near the apex but distinctly constricted, the apex truncate, very broadly tubulate, more than three-fourths as wide as the base; punctures rather fine but deep, quite sparse, the impunctate line narrow and not attaining the apex. Slytra at base nearly two-fifths wider than the prothorax, about four times as long as the latter and scarcely notice- ably wider behind the middle, the sides gradually ogival in apical third, with the sutural notch rather large; humeri rectangular, rounded, broadly ex- posed ; strial punctures rather small but very deep, perforate and close-set ; intervals flat, very minutely feebly sparsely and inconspicuously punctate. Abdomen finely, distinctly, subrugosely punctate. Length 5.4 mm.; width 2.3 mm. Colorado. A rather large species allied to laticollis and parvicollis, but differing in its entirely pale reddish-ochreous coloration, and much broader form. The two specimens before me are apparently males. 6 D. parvicollis n. sp.—Oblong, moderately stout, feebly convex, shin- ing, rufo-testaceous, irregularly mottled with piceous-black, especially toward the middle; vestiture rather sparse, consisting of short robust and recumbent pale hairs, unevenly and feebly condensed and mottled, without trace of erect sete. Head finely, deeply, very densely punctured and with a deep frontal fovea; beak in the male somewhat stout, feebly but distinctly arcuate, coarsely deeply and closely punctate in longitudinal furrows, strongly and conspicu- ously setulose and slightly longer than the head and prothorax, distinctly less than one-half as long as the elytra, with the antenne inserted just beyond apical two-fifths ; in the female the beak is very long, slender, less sulcate, strongly, evenly arcuate, fully two-thirds as long as the elytra, with the antennz inserted just beyond the middle; basal joint of the funicle sub- 368 Coleopterological Notices, IV. “equal to the next three in both sexes. Prothorar small, transverse, about two- thirds wider than long, nearly similar in the sexes, abruptly, strongly rounded and very strongly narrowed near the apex, the latter broadly and rather strongly tubulate, four-fifths as wide as the base, broadly, feebly arcuate, feebly sinuate in the middle; punctures not very coarse but deep, dense although distinctly separated, the impunctate line completely obsolete. Elytra at base from one-third to one-fourth wider than the prothorax, four times as long as the latter, parallel in the male but gradually distinctly wider behind in the female, obtusely ogival at apex; strial punctures moderately large, very deep, perforate, close-set ; intervals nearly flat, minutely, feebly, rather sparsely punctate. Abdomen finely, evenly, not densely punctate. Length 4.5-5.5 mm.; width 2.0-2.2 mm. ; Indiana. Allied to laticollis, but distinguishable by the pale coloration and especially by the shorter, more robust beak of the male and the slightly larger eyes of the same sex; the beak and head are also much more coarsely and densely punctate and setose. The tooth of the anterior femur is larger in the present species than in /at¢- collis, and the elytra are parallel in the male and not gradually feebly inflated behind. 7 D. hystricula n. sp.—Oblong-oval, convex, feebly shining, piceous- black and more or less rufescent toward the sides, to pale rufo-testaceous throughout; legs always pale; vestiture dense, consisting of short stout pointed and decumbent hairs, cinereous in color and but feebly mottled, the pronotum with two narrow indefinitely nubilate darker vitte, the elytra bristling also with long erect stiff setz, not close-set in a single line on each interval. Head and beak very densely punctate throughout, the latter not longitudinally carinulate or sulcate, in the male short, about as long as the prothorax, with the antenne inserted at apical third, in the female just visi- bly longer, but not longer than the prothorax, with the antenne inserted at apical two-fifths, in both sexes feebly, evenly arcuate and stout; antenne stout, the basal joint of the funicle as long as the next three, second much shorter than the next two, outer joints gradually thicker and transversely oval, club thick, oval, pointed. Prothorax one-half wider than long, parallel and broadly arcuate at the sides, moderately constricted and broadly sub- tubulate at apex, the punctures not coarse but deep and dense; impunctate line obsolete. lytra at base one-third wider than the prothorax, about three and one-half times as long as the latter, the sides parallel and nearly straight ; apical third evenly ogival; sutural notch broad and rather large; strie un- impressed, the punctures moderately coarse, deep, somewhat close-set ; inter- vals minutely, very feebly and somewhat closely punctate. Abdomen closely, rather coarsely, confusedly and subrugosely punctured. Length 2.7-3.3 mm. ; width 1.1-1.5 mm. = Coleopterological Notices, IV. 369 California (San Francisco to Los Angeles). One of the most abundant of the Californian species and repre- sented before me by a large series. It varies greatly in color, and closely resembles mannerheimt Gemm.; the latter, however, com- pletely lacks the long coarse erect sete which are so conspicuous in hystricula. 8 D. hispidus Lec.—Proc. Am. Phil. Soc., XV, p. 167. Oblong, somewhat stout, convex, feebly shining, pale flavo- testaceous throughout except the sterna of the hind body, which, as in hirtus, are blackish; vestiture dense, consisting of robust recumbent hairs, feebly subdenuded in uneven wavy blotches on the elytra behind the middle, and with coarse erect bristles of moderate length. Head very densely punctate and coarsely pubes- cent, the beak in the female subglabrous toward apex, very feebly, evenly arcuate, rather slender, not quite as long as the head and prothorax, the antennz inserted at apical two-fifths; between the bases of the antenne there is a dilated flat polished and impunctate area. Prothorax small, more than one-half wider than long, parallel and rounded on the sides, convergent and sinuate, but not strongly constricted, near the apex, the latter three-fourths as wide as the base; punctures moderate in size, deep, dense, the impunctate line narrow and distinct. Hlytra at base fully one-third wider than the prothorax, much more than three times as long, parallel, gradually, evenly parabolic in more than apical third; strial punctures moder- ately large, very deep and close-set; intervals about three times as wide as the punctures. Abdomen densely, rugosely punctate. Legs short. Length 3.6 mm.; width 1.4 mm. New Mexico. Cab. LeConte. A distinct species not closely allied to any other, it differs from hirtus in its smaller, narrower prothorax, and the shorter and sparser pubescence of the elytra, although the erect sete are similar to those of that species in length and abundance; also, as remarked by Dr. LeConte, in the absence of the interantennal sulcus. 9 D. hirtus Lec.—Proc. Am. Phil. Soc., XV, p. 166. Oblong, robust, convex, somewhat shining, pale flavo-testaceous, the beak piceous; sterna and their parapleure black; vestiture dense, consisting of long robust recumbent hairs, yellowish-white in color, scarcely mottled bat subdenuded in a large clouded spot 370 Coleopterological Notices, IV. near the middle of each elytron; elytra and beak toward apex bristling with stiff suberect sete. Beak in the female not very stout, evenly, feebly arcuate, as long as the head and prothorax, rather sparsely punctate and subglabrous except above in basal half, with an elongate indentation between the antenne, the latter inserted just behind apical third, the basal joint of the funicle not quite as long as the next three; club moderate, not darker in color. Prothorax two-thirds wider than long, parallel and rounded at the sides, convergent and just visibly constricted anteriorly, the apex nearly three-fourths as wide as the base; disk rather finely, some- what closely punctate, without distinct impunctate line. Elytra at base barely one-fourth wider than the prothorax, three and one-half times longer than the latter, subparallel, ogival in apical third, the strize feebly impressed, the punctures rather small, not very close- set; erect sete forming a single line on each interval. Length 3.7 mm.; width 1.65 mm. California (San Diego). Cab. LeConte. Represented by the unique female type. Hirius is allied to hystricula, but is immedi- ately distinguishable by its larger and more transverse prothorax, stouter bodily form, longer beak, very much finer strial punctua- tion and many other characters. The erect sete of the elytra are decidedly shorter and more numerous than in hystricula. 10 D. filiolus n. sp.—Oblong-oval, rather stout, convex, shining, pale flavate throughout; vestiture rather sparse, consisting of long, somewhat fine, recumbent and ashy pubescence, not perceptibly variegated, the elytra brist- ling with long sparse and erect bristles, disposed in a single line on each interval. Head and beak finely, rather densely, evenly punctate, the frontal fovea deep but not very large; beak short, stout, just visibly, evenly arcuate, about as long as the prothorax in the female, not longitudinally furrowed or carinulate ; antenne inserted beyond apical two-fifths, somewhat stout, short, the basal joint of the funicle as long as the next three, seventh abruptly wider, transverse, club short, very robust, oval. Prothorax short and transverse, two- thirds wider than long, strongly rounded on the sides, convergent and nearly straight but not in the least constricted toward apex, the latter much narrower than the base; punctures rather coarse, very deep and dense but not actually in contact, and with traces of a narrow impunctate line. lytra at base one- third wider than the prothorax, three and one-half times as long, subparallel, the apex conjointly ogival; strie feebly impressed, coarsely, deeply and closely punctate, the intervals very minutely, feebly, sparsely and indistinctly punc- tured. Abdomen shining, finely, not very closely, distinctly punctate, sparsely and finely pubescent. Length 2.5 mm.; width 1.15 mm. Coleopterological Notices, IV. 371 Colorado. The single specimen serving as the type is probably a female. This species is one of the smallest of the genus and is somewhat allied to hystricula, but differs greatly in its coarser, sparser punc- tuation, sparser pubescence and especially in the form of the pro- thorax, which is shorter, more strongly narrowed anteriorly and not at all constricted behind the apical margin. 11 D. mannerheimi Gemm.—Col. Hefte., VIII, p. 122 (Erirhinus) ; Lec.: Proc. Am. Phil. Soc., XV, p. 166; vestitus Mann.: Bull. Mosc., 1853, II, p. 242 (Hrirhinus). ‘Oblong, moderately stout, convex, scarcely shining, densely and almost uniformly clothed throughout with short robust recumbent hairs of a dark cinereous tint, and without long erect sete; body black, the legs piceous; antenne paler, piceous. Beak very short, stout, densely punctured and setose but not longitudinally grooved, opaque, feebly arcuate and equal in length to the prothorax ; antenne inserted but slightly beyond apical two-fifths, the basal joint of the funicle robust and but little longer than the next two. Prothorax short, fully one-half wider than long, parallel and rounded on the sides, strongly constricted and broadly subtubulate at apex, ex- tremely densely, not very coarsely punctured, without impunctate line. EHlytra at base much wider than the prothorax and about three and one-half times as long, the sides parallel and straight, rounded in apical third, with a small sutural notch: striae rather coarsely deeply and closely punctate, not strongly impressed ; inter- vals but slightly wider than the strial punctures, densely punctu- late. Length 2.7 mm.; width 1.25 mm. Alaska. Cab. LeConte. Easily distinguishable from the other Alaskan species by its dense and uniform pubescence and shorter, broader, more parallel form. It is doubtful if the name substituted by Gemminger should be retained, as the south African veslitus is possibly a true Erirhinus. The anterior femora in mannerheimi are distinctly toothed; the others are not in a favorable position for observation in the single specimen which I have studied. The pro- notal vittee, mentioned by Mannerheim, are obliterated in this ex- ample, and the small subdenuded spots of the elytra are extremely feebly defined. 12 D. nubeculinus n. sp.—Narrowly oblong-oval, convex, shining, sparsely clothed with long white robust and squamuliform hairs, somewhat 372 Coleopterological Notices, 1V. unevenly arranged on the elytra and erect and bristling on the head; color pale rufo-testaceous ; head and beak blackish, the tip of the latter pale; elytra with a broad triangular basal area and an elongate narrow subsutural spot behind the middle of each blackish; sterna and side-pieces black. Head very densely punctate, without distinct frontal fovea; beak short, stout, just visibly bent, rather finely, deeply and moderately densely punctate but not at all sulcate or carinulate, in the male barely longer than the prothorax, with the antenne inserted at apical third; basal joint of the antennal funicle fully as long as the next three, club moderate, not at all darker in color, with the first joint subglabrous toward base. Prothorax short, two-thirds wider than long; sides parallel and nearly straight in middle two-thirds, convergent and rounded near the base, convergent and very feebly sinuate behind the apex, the latter three-fourths as wide as the base; punctures very dense, rather fine, deep; median line very narrowly and feebly carinulate. lytra at base fully one-third wider than the prothorax, nearly four times as long, parallel and straight at the sides, ogival in apical third, the sutural notch subobsolete ; strie barely impressed, coarsely deeply and closely punctate, the intervals not quite twice as wide as the striae, finely, rather sparsely and confusedly punc- tate. Abdomen rather strongly punctate, blackish toward base and in the median parts of the fifth segment. Zeys short; femoral teeth rather large and distinct but acute. Length 3.0 mm.; width 1.2 mm. Colorado. A small narrowly convex species of peculiar coloration, with long coarse and sparse but conspicuous vestiture, and short non-suleate beak. It is not closely allied to any other form which I have seen. 13 D. luridus Mann.—Bull. Mosc., 1853, II, p. 241 (Erirhinus); Lec.: Proc. Am. Phil. Soc., XV, p. 165. Oblong, subcuneiform, moderately convex, polished, rufo-testace- ous, the head piceous; vestiture rather sparse, consisting of short robust recumbent pale hairs, confusedly condensed and mottled on the elytra, longer and more slender on the pronotum; erect sete entirely wanting. Head rather coarsely, strongly punctate, the fovea very small; beak not very stout, almost straight, deeply, coarsely punctured in longitudinal furrows, evenly and just visibly arcuate in the female, straight and slightly bent near the apex in the male; in the male it is a little less than one-half as long as the elytra, with the antenne inserted at apical third, the first funicular joint but little longer than the next two, in the female barely one- half as long as the elytra, the antenne inserted just behind apical third, with the basal joint of the funicle fully as long as the next three. Prothorax small in both sexes, nearly one-half wider than long, rather coarsely, closely punctate, with a narrow imperfect im- Coleopterological Notices, IV. 373 punctate line, constricted at apex, rounded and subparallel on the sides. Elytra at base distinctly wider than the prothorax, a little more than three times as long as the latter, wider behind; strial punctures coarse, deep and close-set; intervals finely but deeply, evenly, not very closely punctate. Abdomen strongly punctate. Length 3.4—4.3 mm.; width 1.4-1.8 mm. Alaska, Washington State and California (San Francisco and Los Angeles). This is a very abundant, widely distributed and constant species and may be easily recognized by the characters stated in the table. In one immature specimen before me a large region of the elytra toward the suture is piceous-black, confusedly speckled with paler spots. 14 D. rufulus Mann.—Bull. Mosc., 1853, II, p. 240 (Erirhinus) ; Lec.: Proc. Am. Phil. Soc., XV, p. 165. Oblong, rather convex, rufo-testaceous and feebly shining through- out; sterna and side-pieces picescent; vestiture sparse and scarcely at all condensed in spots, consisting of short prostrate pale hairs. Head deeply punctate, without frontal fovea, the beak in the female moderately stout, feebly arcuate, distinctly longer than the head and prothorax, deeply punctato-sulcate; antenne inserted rather behind apical third, the basal joint of the funicle subequal to the next three. Prothorax one-half wider than long; sides parallel evenly and rather strongly arcuate; apical constriction small and strong, the apex four-fifths as wide as the base, broadly tubulate ; punctures moderate in size, narrowly separated, with a fusiform impunctate space at the middle. Elytra at base nearly two-fifths -wider than the prothorax, almost four times as long, scarcely per- ceptibly wider behind the middle; sides convergent and nearly straight in apical third, the apex narrowly obtuse; sutural notch obsolete; strial punctures not very large but deep, moderately close-set ; strize not impressed; intervals wide, minutely, indis- tinetly punctate. Abdomen not coarsely, strongly, rather sparsely punctured. Femora not very stout, the tooth small, distinct and very acute. Length 4.3 mm.; width 1.8 mm. Alaska. Cab. LeConte. The single specimen, from which the above outline is drawn, is a female, the abdomen being evenly con- vex toward base. It is quite closely allied to luridus but is a larger, stouter species, with shorter and thicker beak, always pale in color and with decidedly smaller eyes, so that when the insect is viewed in profile, there is a large part of the head visible above them. 374 Coleopterological Notices, IV. 15 D. cumeatulus n. sp.—Rather narrowly cuneate, convex, polished, black throughout, the pronotum and elytra occasionally with small feebly- marked paler spots near the humeri; vestiture sparse, consisting of short robust recumbent hairs, whitish in color and confusedly and vaguely con- densed in spots and transversely wavy lines behind the middle of the elytra. Head strongly but only moderately closely punctate, the fovea almost obsolete ; beak somewhat stont, cylindrical, equal in thickness, strongly, longitudinally furrowed and closely, obscurely punctate in both sexes, but differing greatly in length; in the male decidedly short, as long as the head and prothorax, straight, feebly bent near the apex, the antenne inserted at apical third; in the female rather long, evenly, very feebly arcuate, about two-fifths as long as the body, with the antenne inserted rather beyond apical two-fifths ; an- tenne somewhat slender, the first funicular joint not quite as long as the next three in both sexes, the second about as long as the next two in the female, but slightly shorter in the male, rufo-testaceous with the club darker. Pro- thorax nearly two-fifths wider than long, not differing greatly in the sexes, parallel and broadly rounded at the sides, strongly constricted and broadly tubulate at apex, coarsely deeply and moderately closely punctate, without distinctly marked impunctate area. lytra at base distinctly wider than the prothorax, fully three times as long as the latter, broadly feebly inflated be- hind, obtusely cgival in apical third; striz feebly impressed, coarsely deeply and closely punctate, the intervals minutely and not very densely so. Abdo- men rather strongly indistinctly and subrugosely punctured. Length 3.3-3.7 mm.; width 1.3-1.6 mm. California (Siskiyou Co.). A small, somewhat narrow and convex species allied to lurzdus, but distinguishable by its black coloration and by the much greater sexual disparity in the length of the beak, the latter being actually a little shorter in the male than in the corresponding sex of luridus. The body is narrower and the antennal club larger and relatively longer in cuneatulus. 16. D. alaskanus n. sp.—Narrow, oblong, subparallel, moderately con- vex, shining, picveous-black, the elytral suture and flanks pronotum at base and apex, legs and antenne, except the club, paler; vestiture very sparse, con- sisting of short robust recumbent hairs, condensed, larger and whiter in very small remote spots on the elytra. Head strongly deeply and closely, the beak very densely and opaquely, punctate, the latter longitudinally channeled, in the male rather stout, feebly arcuate toward apex, equal in length to the head and prothorax, the antenne inserted at apical third, the basal joint of the funicle rather robust, not as long as the next three. Prothorax one-half wider than long, subparallel and rounded on the sides, strongly constricted at apex, the latter broadly and briefly tubulate, nearly as wide as the base; disk rather coarsely deeply and somewhat sparsely punctate, with a central feebly-defined, elongate subimpunctate area lytraat base about one-third wider than the prothorax, rather more than three times as long; sides almost straight and Coleopterological Notices, IV. 375 parallel in basal two-thirds; apex ogival, the sutural notch minute; disk with jast visibly impressed series of coarse, deep, not very close-set punctures, the intervals minutely, feebly and somewhat sparsely punctate. Abdomen finely, sparsely punctured. Length 3.0 mm. ; width 1.1 mm. Alaska. Cab. LeConte. A small species allied to luradus, but narrower, more sparsely pubescent, darker in color and with a shorter beak in the male; the antennal club is distinctly longer and larger than in luridus. In form it somewhat resembles swbfasciatus, but the prothorax is less strongly rounded on the sides and the punctuation very much coarser and sparser. 17 D. marginatus pn. sp.—Oblong, feebly convex, rather dull, rufo- testaceous ; sterna, abdomen except near the apex, a feeble clouded transverse area on the pronotum before the middle, head, beak except at tip and a broad subsutural vitta on each elytron, from the base nearly to the apex, more or less blackish ; vestiture moderately dense, consisting of short robust recumbent hairs, feebly condensed in small and paler spots on the elytra, unevenly denser toward the sides of the pronotum and paler in two small approximate spots before the middle. J/ead very densely, deeply punctate, without frontal fovea, the squamules erect, dense and bristling along the inner margin of the eyes ; beak as long as the head and prothorax, rather stout, deeply punctato-sulcate, feebly arcuate; antenne inserted near apical third, the basal joint of the funicle as long as the next three, club moderate, piceous-black. Prothorax one- third to one-half wider than long, subparallel and rounded on the sides, dis- tinctly constricted behind the apex, rather coarsely, very deeply and densely punctate, without impunctate line. £lytra at base one-third wider than the prothorax, from more than three to nearly four times longer than the latter, parallel and nearly straight on the sides, acutely ogival in apical third ; sutu- ral notch rather large, deep and triangular; striae not impressed, the punc- tures moderately coarse, very deep and close-set; intervals minutely, indis- tinctly but rather closely punctate. Abdomen somewhat coarsely, moderately closely punctate. Legs rather short; femora stout, moderately but distinctly dentate. Length 3.6-4.0 mm.; width 1.4-1.6 mm. California. This is a rather distinct species, allied to vagenotatus, but always easily separable by the well-defined abbreviated subsutural vitta. 18 D. indifferens n. sp.—Oblong-oval, rather shining and convex, dark rufo-testaceous in color, the head, beak, sterna and the elytra indefi- nitely toward the middle, black or piceous; elytral suture always narrowly rufous ; tip of beak pale testaceous ; legs and antenne rufo-testaceous ; vesti- ture rather sparse, consisting of short robust pointed and prostrate hairs, whitish in color, confusedly condensed and subdenuded on the elytra. Head not coarsely but deeply, very densely punctate, finely sparsely squamulose, 376 Coleopterological Notices, IV. with a round perforate fovea on a line through the posterior margin of the eyes, beak rather stout, nearly straight, feebly bent toward apex, coarsely, densely punctato-sulcate, equal in length to the head and prothorax in the female, slightly shorter in the male, the antenne inserted at apical third, or slightly behind this point in the female, the basal joint of the funicle about as long as the next three, second almost as long as the succeeding two, club moderate. Prothorax fully one-half wider than long, the sides parallel, broadly, distinctly arcuate, abruptly, deeply constricted behind the apex, the latter transversely truncate, three-fourths as wide as the base; punctures not coarse, very deep, dense but not coalescent, with a very fine subcariniform median line. lytra at base two-fifths wider than the prothorax, not quite four times as long; sides subparallel, gradually rounded in apical two-fifths, sutural notch shallow, broadly angulate; strize feebly impressed, not very coarsely but deeply and closely punctate; intervals nearly three times as wide as the punctures, minutely, rather indistinctly punctate. Abdomen polished, finely, distinctly, not densely punctate, two basal segments blackish, the remainder rufous. Legs rather slender; femora with a small acute tooth, rather feebler on the intermediate as usual. Length 3.0-4.0 mm.; width 1.3-1.7 mm. New York; Illinois; Iowa; Kansas. A common Atlantic form, resembling rufus and vagenotatus, but distinguishable by the small and deep perforate frontal fovea, which is completely obsolete in those species, and also by its larger size and different coloration. 19 D. vagenotatus n. sp.—Oblong, feebly convex above, piceous-black ; abdomen toward apex, legs, antenne except the club, pronotum laterally and a narrow’ suffused stripe near the side of each elytron paler and more or less rufous; integuments confusedly marmorate with small confused condensed patches of short white pointed hairs, less mottled and almost uniformly pubes- cent along the lateral paler stripe. Head very densely, deeply punctate, without frontal fovea, the squamules near the eye abundant but short; beak moderately stout, broadly, feebly arcuate toward apex, distinctly longer than the head and prothorax, deeply, densely punctato-sulcate, the antenne in the male inserted just behind apical third, the first funicular joint about as long as the next three, second not quite as long as the next two, club rather large, elongate, conoidal and gradually pointed. Prothorax one-half wider than long, parallel and strongly, evenly arcuate on the sides, strongly constricted behind the apex, the latter subtubulate; punctures moderately coarse, very deep and dense; impunctate line subobsolete. lytra at base one-third wider than the prothorax, three and one-half times as long, parallel and straight at the sides, obtusely parabolic in apical fourth ; sutural notch small, feeble and cuspiform, not triangular; strial punctures coarse, very deep, rather close-set ; intervals about twice as wide as the punctures, minutely, sparsely punctulate. Abdomen finely, sparsely punctate. Legs long; tooth of the anterior femora large, rect- angular. Length 3.6 mm.; width 1.5 mm. Coleopterological Notices, IV. 3TT Indiana. The type and unique specimen is a male, the abdomen having a large rounded and deep impression near the base. It is allied to rufus but differs in its larger size, coloration, longer beak and more elongate antennal club, longer legs, more distinct femoral teeth, and in the finer, shorter vestiture, more distinctly defined in white mar- morate patches on the dark elytra. 20 D. rufus Say.—Descr. N. A. Cure., July, 1831; Ed. Lec., I, p. 293 (Erirhinus). Oblong, feebly convex, pale flavo-testaceous throughout, the elytra feebly clouded with brownish toward the middle; integuments shin- ing, not very densely clothed with robust squamuliform hairs, con- fusedly condensed in transversely wavy spots and whitish in color. Head very densely punctate, the squamules along the inner margin of the eye erect and bristling ; beak rather stout, somewhat longer than the head and prothorax in the female, and with the antenne inserted beyond apical two-fifths, rather coarsely, densely lineato- sulcate and punctate, very feebly arcuate; antenne rather slender, the basal joint of the funicle not quite as long as the next three, second but slightly longer than the third ; club moderate, slightly darker in color, sparsely pubescent. Prothorax one-half wider than long; sides subparallel and rather strongly arcuate, convergent and just visibly sinuate near the apex; punctures rather coarse, very deep, somewhat dense, without impunctate line. Elytra at base one-third wider than the prothorax, but slightly more than three times as long, parallel, obtusely rounded in not more than apical third; sutural notch small but deep; strial punctures coarse deep and very close-set; intervals flat, twice as wide as the strial punc- tures, sparsely, very feebly punctulate. Legs short, stout, the femoral teeth minute but distinct on the anterior. Length 3.0-3.2 mm.; width 1.3 mm. Kansas. The three specimens before me exhibit scarcely any variation. ‘This species may be readily known by its pale ochreous color, feebly clouded along the median parts of the elytra, the small size, coarse, subsquamiform vestiture and by several other distinc- tive characters. - 21 D. fusciceps n. sp.—Oblong, rather broad and subdepressed, pale ochreous-flavate, the head and beak piceons-black; sterna piceous, each elytron almost imperceptibly clouded with a darker tint in a broad subsutural 378 Coleopterological Notices, IV. area from basal third to apical fifth ; vestiture very dense but scarcely at all condensed in spots, consisting of very short robust and decumbent hairs, be- coming squamulose in a small spot at each side of the pronotal disk. Heud very densely punctate, with a small frontal fovea; beak stout, very feebly arcuate, as long as the head and prothorax, deeply punctato-sulcate; antennez moderate, inserted at apical third, the basal joint of the funicle fully as long as the next three. Prothorax short and strongly transverse, three-fourths wider than long; sides parallel and almost straight in middle third, conver- gent toward base and rather abruptly, strougly so and straight in apical fourth; apex truncate, about three-fifths as wide as the base; punctures rather small, very dense, without impunctate line, a narrow median line infuseate. lytra large and broad, barely two-thirds longer than wide, fully one-third wider than the prothorax and four times as long, subparallel, gradually ogival behind in apical two-fifths ; sutural notch very feeble, cuspi- form; strial punctures moderate; intervals from two to nearly three times as wide as the striz, finely, very densely and subrugosely punctate. Legs rather short; femoral teeth small, the anterior acute. Length 4.3 mm.; width 1.9 mm. Towa. Represented by a single specimen deprived of abdomen, but pro- bably a male. It is allied to rufus, although very much larger and relatively wider, with denser punctuation and shorter much less conspicuous vestiture. In fusciceps the subapical constriction of the prothorax is totally obsolete; it is broad and almost obsolete in rufus and deep and abrupt in marginatus. 22 D. brevicollis Lec.—Proc. Am. Phil. Soc., XV, p. 165. Oblong, rather convex, not very stout, shining, blackish-piceous, the beak, legs and antenne rufescent; vestiture consisting of short robust and prostrate hair, whitish in color and more or less con- densed in indefinite spots on the elytra, rather dense and conspicu- ous. Head very deeply, densely punctate, with a deep frontal fovea ; beak rather longer than the head and prothorax, deeply punctate, finely suleate, feebly arcuate, moderately stout; antenne somewhat slender, the basal joint of the funicle rather long, fully as long as the next three. Prothorax one-half wider than long, subparallel and strongly arcuate at the sides, strongly convergent and just visi- bly sinuate toward apex, the latter rather narrow, not more than two-thirds as wide as the base; punctures coarse, deep and dense, with a small elongate impunctate spot at the middle. EHlytra at base one-third wider than the prothorax, very nearly four times as long, straight and parallel at the sides, rounded in apical third; Coleopterological Notices, IV. 379 ‘sutural notch almost obsolete; strial punctures coarse, deep and close-set. Abdomen rather coarsely and closely punctate. Length 3.7 mm.; width 1.4 mm. Lake Superior and Minnesota. Resembles rufulus somewhat, but differs in its narrower form, more strongly convergent sides of the prothorax toward apex, the latter being very much narrower when compared with the base, in its decidedly coarser punctuation, especially of the pronotum, and in the coarser, denser vestiture. The two specimens before me are apparently males, and the one from Minnesota is pale flavo-testaceous throughout, probably from immaturity, with the frontal fovea practically obsolete, this not being so constant a feature as it apparently is in zndifferens. 23 D. subsignatus Mann.—Bull. Mosc., 1853, II, p. 241 (Erirhinus). Rather slender, convex, feebly subcuneate; body piceous-black, the pronotum rufescent toward base and apex, the elytra dark rufo- testaceous, each indefinitely clouded with blackish in the middle to- ward base and also near the apex; legs and antenne pale, the club of the latter dark. Head and beak finely deeply and extremely densely punctate, dull, the beak finely, obsoletely carinulate, rather stout, almost straight and scarcely longer than the prothorax, the antennee inserted at fully apical third in the male, the basal joint of the funicle not longer than the next two, second not as long as the third and fourth combined. Prothorax nearly one-half wider than long, rather wider and very strongly rounded before apical third, the sides thence strongly convergent and scarcely visibly constricted to the apex; disk finely, very densely punctate, with a narrow partial impunctate line. Elytra at base very slightly wider than the disk of the prothorax, nearly four times as long as the latter, just visibly widest behind the middle, gradually rounded in apical two-fifths, the apex narrowly obtuse; strive rather distinctly im- pressed, not very coarsely but deeply and closely punctate; intervals minutely, rather densely and subrugosely punctate. Abdomen finely, densely punctate. Femoral teeth all large and prominent. Length 3.2 mm.; width 1.3 mm. Alaska. Cab. LeConte. This species somewhat resembles Juri- dus, but is much narrower and is easily recognizable by the excep- tionally fine and dense punctuation, especially of the anterior portion of the body. Annas N. Y. Acap. Scr., VI, Aug. 1892—26 380 Coleopterological Notices, IV. 24 D. longulus Lec.—Proc. Am. Phil. Soc., XV, p. 166. EHlongate-oval, convex, subcuneate, rather shining, rufo-testaceous, often more or less clouded with piceous-black, the head and beak to- ward apex always darker; vestiture not very dense, consisting of short stout pointed and semi-erect hairs, whitish in color. Beak strongly punctate, very feebly sulcate, moderately stout, almost perfectly straight, as long as the head and prothorax, with the an- tennee inserted at apical two-fifths in the female, a little shorter with the antenne inserted at apical third in the male; antennez moderate, the basal joint of the funicle as long as the next two; club rather large, densely pubescent and piceous-black. Prothorax small, sub- cylindrical, with broadly arcuate sides, one-third to two-fifths wider than long, not constricted at apex, convex, finely, rather densely punctate, without distinct impunctate line. Hlytra at base fully one-third wider than the prothorax, feebly, gradually inflated pos- teriorly and widest behind the middle, the apex thence gradually, acutely ogival; sutural notch small but distinct, broadly angulate ; strial punctures rather coarse, deep and close-set; intervals feebly convex, about twice as wide as the strial punctures, minutely, sparsely punctate. Under surface deep black and rather dull throughout, finely, confusedly punctate. Length 3.2-3.7 mm.; width 1.25-1.5 mm. | Alaska. A rather isolated species easily recognizable by its narrowly convex and cuneate-oval form, almost perfectly straight beak darker toward tip, rather fine pronotal punctures and several other characters. 25 D. squamosus Lec.—Proc. Am. Phil. Soc., XV, p. 166; tessellatus | Walsh,: Proc. Ent. Soc. Phila., VI, p. 267 (Anthonomus). Narrowly oblong-oval, convex, dark rufo-testaceous throughout ; sterna often blackish ; integuments somewhat shining, rather densely clothed with small elongate and recumbent scales, yellowish-white in color, feebly, sparsely and very indefinitely, coarsely mottled on the elytra toward the suture, and less dense in middle two-thirds of the pronotum. Beak evenly, quite distinctly arcuate, equally, evenly cylindrical throughout and as long as the head and prothorax in both sexes, densely punctate, longitudinally, feebly carinulate later- ally, the antenne inserted at fully apical third in the male and but slightly behind this point in the female; basal joint of the funicle barely as long as the next three; club small, stout, very abrupt, the basal joint in great part subglabrous. Prothorax wider than Coleopterological Notices, IV. 381 long, subparallel and broadly rounded at the sides, distinctly con- stricted and broadly subtubulate at apex, very densely, deeply punc- tate, without distinct impunctate area. EHlytra at base fully one- third wider than the prothorax, parallel and nearly straight at the sides, rounded in apical third, the sutural notch small but deep and angulate ; strial punctures moderately coarse, deep, somewhat close- set, each bearing a distinct elongate squamule. Length 2.7-3.3 mm. ; width 0.9-1.3 mm. 3 Illinois and Kansas. Easily distinguishable by the narrow con- vex form, dark rufo-ferruginous color and the vestiture, which is dense and distinctly squamiform toward the sides of the body, but more hair-like along the median parts of the upper surface. The tooth of the anterior femora is very small but distinct, that of the others nearly obsolete. In one narrow male there is a small denuded spot in the middle of each of the lateral squamose vitte of the pro- notum. 26 D. marmoreus n. sp.—Oval, convex, rather dull, black; antennae, legs and elytra in a very feebly defined sublateral vitta rufescent ; vestiture dense, consisting of narrow recumbent lanceolate scales, white in color in two narrow approximate pronotal vitte and a small median spot at each side, and, on the elytra, along the suture and in very uneven discal spots, elsewhere subdenuded and piceous-black. Head and beak extremely densely punctate, dull, squamulose, the latter longitudinally rugose but scarcely carinulate, thick, feebly arcuate, not quite as long as the head and prothorax; antenne inserted just behind apical third, the basal joint of the funicle as long as the next three, club moderate, densely pubescent throughout. Prothorax small, one-third wider than long, subparallel, evenly and moderately arcuate at the sides, becoming more convergent, nearly straight and not visibly constricted anteriorly ; apex broadly arcuate, nearly three-fourths as wide as the base; disk rather coarsely, very deeply and extremely densely punctate, without trace of impunctate line. /ytra at base nearly one-half wider than the pro- thorax, more than three times as long as the latter, acutely parabolic in apical two-fifths, the sutural notch very small and feeble, strial punctures moderately coarse, very deep, close-set ; intervals minutely, indistinctly punctate. Abdo- men not coarsely but deeply, very densely punctate. Legs short; femora stout, picescent toward apex, the tooth small but distinct on all, the intermediate and posterior with a large polished glabrous area on the posterior side in basal half. Length 3.2 mm.; width 1.4 mm. New Mexico. This is an isolated species, comparable only with squamosus, but differing greatly in its rather more robust form, stout beak, black color and strongly marked maculation of linear white scales. 382 Coleopterological Notices, IV. SMICRONYX Schonh. Pachytychius Lec. nec Jekel; Desmoris Lec. The genus Pachytychius of Jekel, as represented by the European squamosus Gyll., examples of which have been recently sent me by M. Desbrochers des Loges, has the beak unconstricted at base and similar to that of Tychius, and the tarsal claws small, simple, divergent and distant at base, forming in fact one of the connective bonds between the Erirhinini and Tychiini. Pachytychius does not appear to be represented in the American fauna, and the two species provisionally placed there by LeConte are entirely identical in all structural characters, which can in any way be considered of generic worth, with the form described by that author as Smicronyx corpu- lentus and the other species placed in Smicronyx. Desmoris of LeConte was founded upon two species of rather larger size than the others, but, if care be taken to examine D. con- strictus, it will be found a perfect homologue of such species as Smicronyx sordidus and griseus, in all points of facies and structure. Smicronyx is a rather large genus, constituting a special group of the Erirhinini, characterized by the strong basal constriction of the beak and the simple tarsal claws which are invariably connate in basal third or fourth. It is somewhat heterogeneous in the ex- ternal aspect of its species, both here and in Europe, but as far as can be perceived is entirely uniform in the essential generic struc- tures referred to, as well as in abdvminal structure, in the coarsely faceted eyes, somewhat approximate beneath, and in the deeply sin- uate apical margin of the prosternum. The elytra are, as a rule, distinctly wider at base than the disk of the prothorax, but are not as elongate as in Dorytomus, and are generally acutely rounded behind in apical half, with the tenth stria very short and remote from the ninth, closely approaching the latter behind the humeri. The scutellum is small, the legs rather short and stout, the femora unarmed, the tibial spur distinct, and the third tarsal joint dilated and bilobed, the fourth being somewhat short or moderate in length. The species are small in size, and include among them some of the most minute curculionides known to us at present. Those of our fauna may be provisionally classified as follows :— Fifth elytral interval densely clothed nearly throughout with white scales ; second joint of the antennal funicle almost as long as the first; body robust, oval, convex, densely but unevenly squamose...1 limeolatus Coleopterological Notices, IV. 383 Fifth interval not conspicuously vittate ; second funicular joint very variable in length but always much shorter than the first........seseccesscececccecesseed 2—HElytral scales almost uniform in size and density throughout the disk, uniform in coloration or more or less conspicuously mottled... .........se000 Elytral vestiture very uneven, condensed in subtransversely wavy areas, in which the scales become larger, denser and generally paler in color...... 16 3—Elytra inflated and only slightly longer than Wide... ..........scececessee cee veed Elytra not inflated, much longer than wide, parallel at the sides toward base...5 A—Prothorax distinctly narrower than the base of the elytra, the latter with a large subbasal area of dark brown or blackish scales. Elytral strie coarse and distinctly punctate..................2 Giscoideus Elytral strie fine throughout; form narrower..............0 COrpulentus Prothorax scarcely perceptibly narrower than the base of the elytra, and with two conspicuous white discal vitte.. Si ch abcd beaooCoae 4 amoenus o—Vestiture uniformly bright orange- ali in ane. aes Aeedewowt: 5 fulvus Vestiture vaguely nubilate with whitish, the elytra with a large quadrate subbasal spot of velvety black.. sdoletdiite aabisadeuas .6 quadrifer Vestiture varying in its shades of aetiacus or cinereous, pamiraran confusedly mottled or otherwise variegated.. 5p dog one oon nagnse ong Na ce oop cas aegoosoap SLE AeA) G—Sides of the prothorax parallel sent seen in acale 0! dards to three- fourths... Meat Nacaetaecee ads se deatiemtsanctednene cdomaaiveclecsederste acclenelade: | Sides of the Be bie Meat —y ‘distiueny aeaate in easel two-thirds ap- PVOMIUMALCLY .6..0s0 cscsaendess 8 ee PERSEAES ee tnckeaatorselseacuS 7—Prothorax a Bee Sauiedelly i ‘all oe near ine apex ; body large, oblong........66 sin bislenwbana .7 profusus Prothorax very Samialy a Aunty esaieiiebedk jenn ion apex ; recurved sete of the elytra long, coarse, sparse but strongly hispid and conspicuous. 8 imtricatus S—Elytra at least very nearly three times as long as the prothorax.............9 Elytra distinctly less than three times as long as the prothorax................13 9—Third elytral interval rather wider and more prominent ; es clothed with an extremely dense crust of uniform ochreous scales........9 PUSIO Pimivelyiral interval NOt MOFe PLOMIMENC... 00. 2.5.00. coe cee cer cercoscescccascccsace LO 10—Elytral scales extremely dense, widely jee area Mee Me ceo ase suatarsicws LL Elytral scales scarcely contiguous, sometimes sparse.. cane ehoregl LZ 1 i1—Prothorax rather ma somewhat broadly ‘inflated ina iol aidiee than long.. sas di saaees degeadasssacess 10 corniculatus Prothorax Stall abait as Sieh as Sie suboynindvical’ Species small. Scales of the upper surface very large, broadly oval...... 11 imbricatus Seales smaller and narrower, elongate-oval. Elytra at base scarcely more than one-third wider than the prothorax ; body narrow. Be eceeneecuins se de enoheteces 12 silaceus Elytra at base beat one- half ae ian ane eee body more HMO MEM eteege sae acer cvines (etickiemasienctase se auelape ntoeds cctvessevesceee LO SPUPrCUS U2V—Elytra more or less rufous .......cecceecosecsscescescsscecsecsesseeeld4 VEStitus SAME PEPE AC Ica cirsclel.ciscssecascivesscscedcsecel vas stasehves ssccee ccs covsesvsessacee lS SPALTSUS 384 Coleopterological Notices, IV. samen een vestiture uniform in coloration or very feebly and confusedly mottled . PHEAA Pameiestince siseaes 14 Elytral enh ie aval ike ‘onends me cides! lectus onal Tonoladike roe Along the SULUTEs s52csecce vole scopes cos cen cpedmcmbtl armctmnncenttted teem oe. LC Oem een 14—HElytral scales moderate in size, rather persistent .......... cee cee eee cee eeeeee LD Elytral scales very large, oval and pointed, easily removable...17 obtectus 15—Beak in the female very long and slender, with the antenne inserted far behind the middle. Pronotum more shining, the punctuation finer and sparser; size rather SIMA Niven one arelpeielevaiven ons\acoiesciwas scoiaaelies isi cectene sevicsemociens ces ecievell Ge Nal mCnmEI Pronotum ae Sean es Larger species, the legs usually red: beak in the female squamulose only MCAT UNE VASE Bc cicositae Jeahes seaal kipeeen aeaen wee aeeee 19 constrictus Smaller species, the legs piceous; beak of fe fenlee more or less squamose Han Daisal Malt cccn:asickews cam catpiateiceatenequr eeeteeeee dete seeee eta there .20 griseus Beak in the female much shorter, with Whe anteane coud a the middle ; elytral vestiture just pareepebls: more condensed on the sutural intenzalt 21 comnnivens 16—The elytral vestiture uneven only toward the suture; prothorax about as long as wide, slightly constricted behind the apex........22 seriatus The vestiture uneven throughout the elytral disk........... 0000+ e00escescsccssncncnsl { 17—Elytra much longer than wide, not wider near the middle................18 Elytra but very ae longer than wide, appreciably wider near the middle than at base.. we've geeises oe @eeipcie die oe ossiedoiewiais cle alae setsiseaisiele alhieen ieee te ea mammmnrenes 18—Elytra more or ie rufous, at eee ae ine salen « iow signjeebtslanrateeetellty Ilana Lal Eevelke day koe ted NOUN nonoe ade orb cap padoa6 con doo Gon coonod —sactvatietie 19—Prothorax large, very occ ie as lone as ae the punctures coarse, rounded and not confluent. Smaller species, the pronotal scales narrower sparser and hair-like toward the middle.. d-Salsdislotea a atfd galeisatstaineiee plain ae toete milage 23 fiducialis Larger, the prowl iinn sede Bint Hat sceeeiae densely squamose through- NUL GS 2hsicis ini wis'gs'sin ru aimc'eiSiowie able ers eth Suelnchet eee eae nee an sree Ree RES 24 scapalis Prothorax rather Lares. transverse, sironelg rouaded * ie sides, the punc- tures oval and more or less ES Oe forming long ruge; vestiture dense butstromply mottled. «Vaeecdearenetusmescmuscieahneeeacesence 2) flavicans Prothorax moderately ber convex, sone dousttiptean near the apex, nearly as long as wide, the punctures rounded, dense but not confluent; body MUA TIS) breeches visiac! iss\e,ns/dea'sie~ cine snbisaniesemaevare aaeiosa ieee barientts .26 congestus Prothorax small or eines ately pee cies sank saab on the sides and with the punctures reniform or lunate; elytral vestiture consisting of isolated wavy lines or spots of condensed scales, the interspaces almost glabrous. Pronotal: punctures rather sparse, widely isolated on the disk, the inter- SPaceS POLISH ......seeseeseececseeesssseeeeesrssserresserseerrerad CYChiIOIdes Pronotal punctures dense. Pronotum with a median impunctate line, which is almost entire and finely granulato-reticulate.......sccccesscercrercreree 2d SALittatus OE Coleopterological Notices, IV. 385 Pronotum without trace of median impunctate line; prothorax small. 29 sculpticollis 20O—Prothorax not or very feebly constricted behind the apex..............0.21 Prothorax very strongly constricted and subtubulate at apex, the pronotal punctures small, oval, subconcentrically arranged ; legs red. 30 imstabilis 21—Legs black. Larger species; basal constriction of the beak strong ......... 31 cimereus Smaller, the constriction feeble ; pronotal sculpture coarse and rugose. o2 apionides Legs rufous or rufo-piceous ; pronotal punctures oval or sublinear, distinctly separated. Interspaces of the pronotal punctures polished; elytral scales large and conspicuous but not dense, only moderately uneven in distribution. 33 perpusillus Interspaces strongly and densely punctulate and dull; elytral scales smaller EMMUMMNOGE VE OMG ATC! \ aaa haw Seen Calandrinus appears to be peculiar to the somewhat isolated zoological province embracing Colorado and the northern part of New Mexico. 1 Calandrinus grandicollis Lec.—Proc. Am. Phil. Soc., XV, p. 305. Oblong-oval, strongly convex, polished, piceous-black, the beak, antenne and legs paler, rufous ; integuments sparsely and unevenly squamose, the scales yellowish-white, long, slender and sparse on the pronotum, denser and larger toward the sides, there becoming whiter and broader toward base; on the elytra they are extremely sparse, long and very slender, becoming larger, dense and whiter toward base, behind the scutellum and in a small oblique spot be- hind the middle, from the third stria to the sides; most conspicuous beneath on the prosternum, elsewhere long, fine and-sparse. Beak slender, cylindrical, evenly, moderately arcuate, as long as the head and prothorax, the basal joint of the antennal funicle fully as long as the next three, the second as long as the following two; club rather small, narrowly oval, pointed. Prothorax nearly as long as wide, the sides very feebly divergent and slightly arcuate from the base nearly to apical third, then broadly rounded, the constriction large and distinct; apex nearly three-fourths as wide as the base; disk coarsely, deeply and closely punctate, the impunctate line wide, fusiform, abruptly limited, smooth and polished, extending to the impunctate apical margin. Scutellum very small, deeply seated. Elytra oviform, narrowly rounded at apex, quite distinctly wider and scarcely more than one-half longer than the prothorax, but distinctly longer than wide, strongly arcuate at the sides near the base, the humeral callus not evident; striz abrupt, deep, moderately fine, the intervals flat, extremely unequal in width, the third as wide as the Coleopterological Notices, IV. 619 first and second together, the fourth very narrow, not more than one-half wider than the grooves, each with a single series of small but deep, distant puncturés, which are broadly confused on the third, and, to some extent, on the fifth, Abdomen very coarsely and deeply punctured. Prosternum flat, broadly constricted behind the apex, separating the coxe by about their own width. Length 2.8 mm.; width 1.2 mm. Colorado. Cab. LeConte. Represented only by the unique type from which the description is taken. This species differs from ¢n- signis in its smaller size, straighter and more convergent sides of the prothorax toward base, much more uneven and more sparsely punctate elytral intervals, and in many other characters. 2 Calandrinus insignis n. sp.—Ovulate, strongly convex, highly polished, the head alutaceous, blackish-piceous, the legs and beak rufous ; vestiture consisting of long rather robust hairs, yellowish in color, sparse on the pronotum, becoming broader white denser and squamiform near the sides anteriorly and at lateral sixth toward base; on the elytra the yellowish slen- der squamules are moderately dense toward base, becoming denser white scales near the humeri, and also on intervals one, and four to seven, for a short dis- tance behind the middle, the yellowish squamules elsewhere very sparse ; under surface uniformly and rather sparsely clothed with elongate white scales. Head with a distinct, rather large frontal fovea, the impression almost com- pletely obsolete; beak as long as the head and prothorax, arcuate, slender, finely, sparsely punctate, the punctures linearly arranged along the side of the impunctate line ; antenne nearly as in grandicollis. Prothorax very nearly as long as wide, the sides parallel, evenly, rather strongly arcuate in basal four-fifths, then rounded, convergent and broadly constricted to the apex ; base feebly oblique and straight from the centre to each basal angle; disk with a wide subentire distinctly defined impunctate line, the punctures somewhat coarse, deep, very close but not quite in mutual contact. £/ytra one-fourth longer than wide, nearly one-half longer than the prothorax, and, at basal fourth, a little wider than the disk of the latter, oval in form, the sides strongly arcuate toward base, thence convergent to the narrowly rounded apex, disk with coarse, deep, abrupt, remotely and distinctly punctate striz, the inter- vals flat, from one-half wider than, to about twice as wide as the grooves, finely, - sparsely and more or less confusedly punctate throughout. Abdomen coarsely, deeply punctate. Length 3.4 mm.; width 1.5 mm. Colorado. I owe the above-described type to the kindness of Mr. W. Jiilich, in whose cabinet there is a series of several specimens. The species is easily distinguishable from grandicollis by the characters given in the table, and also by the coarser striz and denser and more Annas N. Y. Acap. Sci., VI, Oct. 1892.—41 620 Coleopterological Notices, LV. confused interstitial punctuation, although the punctures tend to form single lines on the narrower intervals. The punctuation of | the prothorax is nearly the same as in grandicollis, but the vesti- ture throughout the body is mucb more abundant and conspicuous, and there is a sutural line of broader white scales behind the middle in this species, which is entirely wanting and replaced by the usual fine sparse squamules in grandicollis. 3 Calandrinus obsoletus n. sp.—Cylindro-oval, very convex, pol- ished, piceous, the legs and beak bright rufous; vestiture white, consisting of elongate squamules sparsely placed on the prothorax and elytra, becoming denser and more broadly oval on the latter toward base, especially in a broad line behind the scutellum and toward the humeri, and also along intervals four to six for a short distance behind the middle. Head with a small frontal fovea, the beak very slender, finely, sparsely punctate, as long as the head and prothorax, strongly, evenly arcuate, the antenne slender, inserted just behind the middle, the first funicular joint slender, as long as the next three, the second one-half as long as the first, all the joints longer than wide except the seventh, which is a little transverse, club small, as long as the preceding four joints combined, rather thin, sparsely pubescent and slightly shining, with the basal joint large. Prothorax very nearly as long as wide; sides par- allel and broadly arcuate to apical fourth, then rounded and constricted, the apex strongly subtubulate; base broadly, evenly arcuate, the median lobe obsolete; disk very coarsely, deeply punctate, without distinct impunctate line, the punctures rather uneven in size, form and distribution, but gener- ally separated by distinctly less than their own diameters. Scutellum minute, deeply seated. lytra slightly longer than wide, very slightly wider than the prothorax and one-half longer than the latter, ovalo-conoidal, narrowly rounded behind; disk rather coarsely, deeply striate, the intervals flat, from two to three times as wide as the striz, each with a single line of fine distant and inconspicuous punctures. Length 2.8 mm.; width 1.25 mm. Colorado. Readily distinguishable from grandicollis and insignis by the much coarser, sparser punctures of the pronotum, and the entire absence of a well-defined median impunctate line, the punctures simply becoming sparser at the middle; the apical margin is, how- ever, broadly impunctate, as in the species mentioned. A single specimen. CENTRINOGYNA 0. gen. The two species which are referred to this interesting genus, are the most remarkable of the tribe in their wonderful sexual divergen- cies at the apex of the abdomen. In the male, the pygidium is Coleopterological Notices, IV. 621 large, vertical, strongly convex and completely exposed, while in the female it is entirely covered, with the exception of a very small and barely distinguishable portion at the apex. In other words, assuming the division adopted by LeConte, which is still, without much doubt, the best that can be devised, the male is a normal baride, while the female is an equally pronounced centrinide. This of course destrovs any idea of two perfectly isolated natural groups, and compels us to treat the genera as forming part of a single well- defined series. In fact the homogeneity of the entire tribe is proved by repeated parallelisms of structure throughout. In Centrinogyna the body is elongate, parallel and somewhat depressed, nearly as in many species of Limnobaris. The beak is rather slender, arcuate, about as long as the prothorax, with the antenne inserted distinctly beyond the middle, slender, moderate in length, the first funicular joint as long as the next four, the second slightly elongate but less than one-half as long as the first, the club oval, abrupt, densely pubescent and with the basal joint constituting very nearly one-half of the mass. Mandibles deeply notched within, acute, not noticeably overlapping when closed and then forming a prominent angle. The prosternum is perfectly unimpressed, having the usual deep transverse constriction behind the apex but not otherwise modified, the anterior coxe not very widely distant and separated by but slightly more than one-half of their own width, the prosternal pro- cess terminating midway of their length in a distinct transverse suture ; behind this, the prosternum is but slightly produced, pass- ing for only a short distance over the edge of the mesosternum, with the apex broadly and feebly sinuate in the middle. The pro- thorax is strongly tubulate at apex. Scutellum very small, sub- quadrate or a little longer than wide. Legs normal; tibize nearly smooth, the tarsal claws well developed, stout, free and divergent. Vestiture throughout consisting of very sparse slender setiform squamules, white in color and arranged in a single somewhat uneven semi-erect and bristling line on each of the elytral intervals. This genus offers a good example of the polarity theory in the dis- tribution of secondary sexual characters, advanced by Dr. LeConte, the beak and antenne being quite devoid of any perceptible sexual differences, while those at the apex of the abdomen are exception- ally pronounced. The theory does not hold so well, however, in some other genera, as for example in several species of Oxytelus 622 Coleopterological Notices, IV. which I have in mind, and fails completely in Conoproctus Lae. of the present tribe, where the sexual differences in the form of the beak, point of antennal insertion and structure of the pygidium, become extreme in C. 4-pustulatus Fab., as before described under the genus Madarellus. The species may be thus distinguished :— Piceous; legs rufous; sete long and Sek ane pronotum strongly and longitudinally strigose............0 dda kine cea pal ceeiadetecstcen setae MAMI Mnes gala Black throughout, Spe labecne, the sete ieet onal sparse ae short; pro- notum more finely punctate, the punctures distinct, sometimes feebly Goalescent longitudinally... .-saiaweeiest ova 'con cng ven vaeinanieas uncloce nae 2y SD ROR@e Mes 1 Centrinogyna strigata Lec.—Proc. Am. Phil. Soc., XV, p. 421 (Centrinus). The original description of what LeConte designates a remark- able species from an inspection of the female alone, is well given and ample for purposes of recognition, except that the anterior coxe are only separated by about three-fifths of their own width. The beak is rather slender, evenly, moderately arcuate and does not differ appreciably in the sexes; it is sparsely punctured and bas a very even line of small punctures along each side of the median impunc- tate line. The prothorax is very nearly as long as wide, parallel and feebly arcuate at the sides and abruptly, broadly and strongly tabulated at apex, the base transverse, the median lobe very small and almost obsolete; disk with longitudinally, closely, unevenly and deeply plicate or rugose sculpture, the impunctate line very dis- tinctly defined, polished and somewhat elevated. The elytral striz are moderately coarse, deep and abrupt, impunctate, the intervals flat, nearly three times as wide as the grooves, each with a single somewhat uneven series of rather small but deep, approximate punctures. Length 3.5-4.8 mm.; width 1.2-1.7 mm. Colorado and Wyoming. ‘Taken in abundance by Mr. Wickham at Greeley and Laramie. 2 Centrinogyna procera n.sp.—Elongate, parallel, moderately con- vex, shining, black throughout, the vestiture consisting of very small setiform squamules, which are exceedingly sparse and inconspicuous but more evident at the sides of the pronotum and last three ventral segments, and near the apex of the met-episterna. //ead minutely, sparsely punctured, the trans- verse impression strong, broadly angulate in profile; beak rather thick, sub- cylindrical, evenly, rather feebly arcuate, as long as the prothorax, hardly differing in the sexes, but a little thicker and more punctate in the male, the Coleopterological Notices, IV. 623 punctures rather fine, lineate dorsally but larger denser and confused at the sides ; antenne inserted near apical third, the scape long, first funicular joint as long as the next three, the second small, obconical, slightly longer than wide and about one-half longer than the third, outer joints transverse, club moderate, densely pubescent, the basal joint constituting more than one-half the mass and more sparsely pubescent near the base. Prothorax about as long as wide ; sides parallel, evenly and broadly arcuate to apical sixth, then abruptly rounded to the deep constriction ; the apex strongly tubulate, three-fourths as wide as the base, the latter transversely truncate, the median lobe small and feebly rounded ; disk with a narrow distinct and entire impunctate line, the punctures rather fine but deep, uneven, not densely crowded, well separated transversely but tending slightly to longitudinal elongation or partial coales- cence. Scutellum very small, quadrate, glabrous. lytra equal in width to the prothorax and fully twice as long, the sides parallel, feebly convergent in apical third, the apex rather abruptly and not narrowly rounded; humeral callus almost obsolete; disk with moderately deep strie, which become finer toward apex and coarser near the base ; intervals nearly three times as wide as the grooves, each with a single series of rather small, uneven, approximate punctures, somewhat confused on the third. Legs short, the anterior and middle femora very robust, the posterior far less so. Length 4.0-4.7 mm. ; width 1.3-1.7 mm. California (San Francisco). Mr. Dunn. In this species the pygidium of the male is large, broad, vertical, convex, moderately densely punctate, and completely exposed ; in the female it is entirely covered by the elytra, with the exception of a scarcely visible fine lower margin. The prosternum is flat and the anterior cox separated by three-fourths of their own width. The male appears to be much less abundant than the female in both of these species. Five specimens. LIMNOBARIS. Bedel—Fne. Col. Bas. Seine, VI, p. 183. The mandibles in this genus are of a completely different type from those of Centrinus, for, instead of being prominent, perfectly non-decussate and totally devoid of internal inequality, they are here short, stout, strongly arcuate, deeply notched at apex and broadly. decussate when closed, the anterior outline then being broadly, feebly arcuate and not in the least prominent. With this radical difference of structure, there is also a decided peculiarity of facies, the species of Limnobaris being narrow, parallel or oval, generally distinctly depressed, with feebly developed humeral callus and more or less glabrous integuments. Of the genera with promi- 624 Coleopterological Notices, IV. nent mandibles, the closest ally of Linnobaris appears to be Cen- trinogyna, and, in this connection, it should be stated that in the former the tip of the pygidium is occasionally exposed, especially in the male. The basal joint of the antennal funicle is generally long, the second decidedly short, becoming longer in the fifth group, and the club varies considerably, being moderately robust, with a large basal joint in the first group, but narrower and with a much shorter basal joint in the others. ‘There is also considerable variation in the amplitude of the prosternal process between the coxe, the latter being generally more or less remote, but occasionally narrowly separated, again demonstrating the slight weight of prosternal characters in some parts of the centrinide series. The prosternum is usually flat, but in some species may be flat in the female and deeply excavated in the male, and, in dongula, is narrowly impressed along the middle in both sexes. The beak varies in structure to a noticeable extent in the several subgeneric groups as detailed below, and in some of these sections, the prosternal processes of the male are invariably wanting, while in others they may or may not be present. In several species, which happen to belong to all of the subgenera except the first, the beak varies perceptibly in length in different individuals, necessitat- ing some caution in separating the species. I have observed this variation in length in prolixa, rectirostris, ebena, and possibly seminitens, also, as before stated, in Nicentrus lineicollis. The five sections, into which it is convenient to separate our species, may be outlined as follows :— Antennal club,more robust, with the basal joint large, constituting more than one-half of the mass and frequently more sparsely pubescent and shining toward base; beak generally thicker, more strongly and evenly arcuate and not tumid at base, the antenne inserted distinctly beyond the middle in the male but more medially in the female; prosternum always widely separating the coxze and never armed in the male; punctuation deeper, denser and more uneven as a rule, the vestiture frequently more con- spicuous and always uneven; body usually more or less rufo-piceous in color and noticeably depressed... ...:c0veescesess ous cvsesieccievs evs ons sobeqeinetete teenie Antennal club generally narrower, ae pabebonte sheen the basal joint much shorter; body always intense black throughout, except in the next subdivision, occasionally somewhat depressed. Body oblong, moderately convex, densely, confusedly punctate and densely but unevenly clothed throughout with oval whitish scales; beak as in the preceding section; antennal club strongly annulate, the basal joint ae y Coleopterological Notices, IV. 625 constituting scarcely more than one-third of the mass; anterior coxe widely separated, the prosternum flat, not armed in the male............ U1 Body more or less oblong-oval, subglabrous, the beak extremely slender, sometimes nearly straight, tumid above at base, the transverse constric- | tion distinct; prosternum generally armed or otherwise modified before the cox in the male; second funicular joint Short ...........s.seeceeeee oe MA Body narrow and linear, subglabrous; beak very slender, not tumid at base; prosternum armed in the male, the processes sometimes extremely developed ; second funicular joint short; anterior coxe rather narrowly Sept DCMS see sk tan eae acelide cccjecdadarcariccricrelcce ces aiccss ese ane ddorceccdsoncor cond W Body moderately dilated, convex, subglabrous except in longula; beak thicker, not at all tumid at base, the transverse impression completely obsolete, represented by a frontal fovea; prosternum never armed in the male; anterior coxe rather narrowly separated ; second funicular joint ond ee Seni dele o one yaitioce aceremislone cea sialnseeaslacs cou «soles sae'vos'cos ces davaceiunmere W The species may be distinguished as follows :— Subgenus I. Elytral intervals each with a single series of punctures, the third not more conspicuously squamose behind the middle. Pronotum bordered at the sides with an abruptly defined vitta of pale scales. Vitta broad, composed of very large, broad and close-set scales ; pronotal punctures coarse. Prothorax distinctly wider than long, strongly constricted at apex ; anterior coxe separated by one-half of their own width; body stout. ; 1 bracata Prothorax almost as long as wide, more feebly constricted near the apex, almost evenly but still more coarsely punctate; anterior coxe sepa- rated by nearly their own width; body elongate-oval...2 limbifer Vitta narrow but conspicuous, composed of slender, elongate but large and rather close-set scales, which are easily removable ; pronotal pune- Ratt ome rier cie een on ase, ocuiniae se, c)een elo cialelesab Wa onsale cies’ tes od Dlandita Vitta broad ae very ae Bianca of anen narrow od remotely dis- tant scales ; body much narrower and more depressed........4 tabida Pronotum without an abrupt marginal vitta, the vestiture, however, often gradually a little more distinct toward the sides. Elytral grooves coarse, always more than one-half as wide as the intervals, the punctures of the latter coarse. Form depressed, the pronotum parallel, nearly as long as wide, rounded PMC MALCOW EG. ANTETIOLLY .eveesc staves carcce cee cae vas .) deplanata Form rather convex, the Saree fal ton bao long, narrowed through apical half.. Maa ieeteo cede sa sieieisiele 6 punctiger Hlytral grooves generally nis or te the meee le more corer punctate. Pronotal punctures fine, very remote, unevenly distributed and irregular in size; body rather dark rufo-testaceous throughout. 7 denudata 626 Coleopterological Notices, IV. Pronotal punctures much closer and more evenly distributed. Legs red; elytra rufo-testaceous ; interstitial punctures of the elytra minute and distant, the sete very minute.......8 planiuscula Legs black or piceous-black ; entire body black, the elytra occasion- ally feebly picescent; at least in nasuta. Elytral intervals flat, the punctures small and rather distant; sete somewhat long and distinct but sparse.................9 Masuta Elytral intervals somewhat concave, the punctures small and very close-set ; sete minute and scarcely observable; body narrower, more oval and less oblong-parallel...........ssseceeeeeee lO ODLita Elytral intervals with the punctures deep, distinct and broadly confused throughout, the third more conspicuously squamose in a short line be- Mind the middle cg. ssiat ss. .nsed sae ves es eisme vacione ats th ela cblemphtvaiiee Meaean Ute eam Subgenus II. Oblong-oval, moderately convex, piceous, the elytra and legs rufous, the former blackish along the suture; apex of the pygidium exposed....12 grisea Subgenus III. Punctures of the elytra confused, at least on the broader intervals. Beak in both sexes shorter than the prothorax; form rather depressed ; lustre dull . sia Selo Mote m lenlentenes oftde ote] soak e eae mena emaeae 13 confusa Beak in the fle, very ih ae bat apparently Jofnamlee variable in length ; body much more convex, sparsely punctate and more shining. 14 ebena Punctures of the elytra forming an even single series on each interval. Punctures of the intervals finer and remote. Elytral sete very minute and inconspicuous. Male with two short, acute, ante-coxal processes and a large, rounded, extremely deep median excavation .............see ee LD PUteifer Male without ante-coxal horns, but with a broad obtuse cusp before each coxa; prosternum just visibly and broadly impressed. 16 confinis Male unarmed, the prosternum very feebly, broadly impressed and with a short obtuse ridge, extending for a short distance in advance of CACh COXAL CAVITY 0... cecccecscceccerecsecsecseesecssereeel ? COMCULFFENS Elytral sete long. white and conspicuous although remote; male without trace of ante-coxal processes, the prosternum flat.......18 concinna Punctures of the intervals strong, deep and close-set. Small species, the elytral sete very minute and inconspicuous. 19 fratercula Larger species, more elongate; elytral sete longer, distinct but not very conspicnous ; pronotal punctures finer and sparser...20 seminitens Subgenus IV. Legs black ; beak in the female generally not longer than the prothorax. 21 prolixa a oe 7 Coleopterological Notices, IV. 627 Legs pale and bright rufous throughout, more elongate; body more polished and with a distinct eneous lustre, the elytral strie still finer; beak in CU MeMiale VOMSET so... co. cce des conse actcbecedeccsreseeeeavess2o MILIGISSiIMa Subgenus V. Anterior coxe separated by fully three-fourths of their own width; vestiture of the upper surface rather sparse but conspicuous, even, consisting of long white squamules; prothorax evenly narrowed almost from base to apex, the subapical constriction very broad and feeble.......23 longula Anterior coxe separated by not more than one-half of their own width; vesti- ture of the upper surface inconspicuous ; prothorax rather pronouncedly subtubulate. Pronotal punctures rather sparse shallow and variolate...24 rectirostris Pronotal punctures very deep and much denser; anterior coxe separated by scarcely more than one-fourth of their own width.............25 Ccalwa I. 1 Limnobaris bracata n. sp.—Robust and rather strongly convex, oblong-oval, shining, piceous-black, the beak and antenne rufo-piceous ; legs paler, rufous; vestiture uneven, sparse, whitish, consisting of broad close-set scales in a marginal pronotal vitta and at the base of the third and fifth elytral intervals, also distinct on the scutellar lobe of the prothorax, elsewhere slen- der sparse and inconspicuous but mingled with a few more conspicuous scales on the seventh interval, sparse and uneven throughout beneath. Head Sparsely and obsoletely punctulate, the transverse impression distinct; beak rather slender, evenly, distinctly arcuate, cylindrical, fully as long as the prothorax in the male, finely, sparsely, linearly punctate, more coarsely and ‘irregularly so at the sides toward base; antennez inserted distinctly beyond the middle, the basal joint of the funicle as long as the next three, second one- half as long as the first, outer joints a little thicker, club well developed, the basal joint forming more than one-half of the mass, shining and sparsely pubescent. Prothorax one-third wider than long, the sides feebly convergent and slightly arcuate to apical third, then rounded to the deep subapical con- striction, the apex strongly, conically tubulate, one-half as wide as the base, the latter transverse, moderately lobed in the middle; disk rather coarsely but not densely and irregularly punctate, with two large discal spots and a broad flat median line impunctate. Scutellum small, glabrous, trapezoidal. Elytra but slightly wider and one-half longer than the prothorax, as wide as long, hemi-elliptical; striz coarse, deep, not crenulate toward base; intervals one-half wider than the grooves, flat, uniseriately but unevenly and rather coarsely punctate. Abdomen coarsely densely and somewhat rugosely punc- tate. Prosternum separating the rather large anterior coxe by not more than one-half of their own width. Length 3.1 mm.; width 1.6 mm. Missouri (St. Louis). Mr. Schuster. This isolated species is readily distinguishable by its stout convex form, the two impunctate areas of the pronotum and many other 628 Coleopterological Notices, IV. characters. It is represented by a single male, having the abdomen unusually deeply impressed in the middle near the base, the impres- sion hirsute with thickened suberect hairs. The apex of the pygi- dium is quite distinctly exposed. 2 Limnobaris limbifer n. sp.—Oval, moderately convex, polished, piceous-black, the antenne hardly paler, the beak and legs rufous; vestiture ' very uneven, nearly white, consisting of large broad and rather dense scales in a broad marginal region of the pronotum and with scales of various sizes very remotely scattered over the remainder of the disk, especially evident on the basal lobe; on the elytra the scales are of varying sizes and scattered re- motely along the intervals in nearly single lines, with a more distinct spot at the base of the third interval; on the under surface they are also of different sizes, rather sparse but dense toward the apex of the met-episterna. Head extremely minutely feebly and sparsely punctate, the transverse impression feeble but distinct, the beak cylindrical, rather stout, feebly flattened toward apex, polished, smooth but sparsely and sublinearly punctate at the sides toward base, evenly, rather strongly arcuate and about as long as the head and prothorax; antenne inserted distinctly beyond the middle, slender, the first funicular joint as long as the next three, the second one-half as long as the first and one-half longer than the third, the club abrupt, small, with the basal joint composing nearly two-thirds of the mass, pubescent toward apex but gradually nearly glabrous and polished toward base. Prothorax very nearly as long as wide, the sides parallel and feebly arcuate to apical fourth, then rounded convergent and quite distinctly constricted to the apex, which is rather more than one-half as wide as the base, the latter transverse, the median lobe small, slightly prominent, the mes-epimera strongly visible from above; disk very coarsely punctured, the punctures deep, somewhat uneven and generally separated by nearly their own widths ; impunctate line rather wide and conspicuous. Scutellum quadrate, flat, polished and glabrous. Elytra a little wider and about three-fourths longer than the prothorax, hemi- elliptical, acutely rounded behind, the humeri feebly tumid; disk rather coarsely, deeply striate. the intervals flat, one-half wider than the grooves, each with a singe series of rather small but deep, distinct, rather remote punctures. Under surface coarsely but not very densely punctured; pro- sternum flat, separating the large coxe by not quite their own width, the sub- apical coustriction distinct and coarse. Length 3.6 mm.; width 1.5 mm. Florida. The single type is apparently a female. This species belongs in the neighborhood of punctiger, but is not at all closely allied to it. I have before me a specimen from Colorado which is possibly con- specific; it has the interstitial punctures coarser, the sqnatne border narrower and the elytra rufescent. 3 Limnobaris blandita n. sp.—Oblong-oval, rather depressed above, strongly shining, black, the elytra and legs more or less rufous ; vestiture Coleopterological Notices, IV. 629 yellowish-white, very uneven, consisting of larger and smaller squamules which are always long and slender, only distinct on the pronotum in a narrow rather abrupt and dense marginal vitta, on the elytral intervals very remotely dispersed in single series, with a distinct spot at the base of the third; beneath, the squamules are very fine and:sparse throughout, except on the met-episterna where they are coarser and dense, becoming sparser posteriorly. Head minutely but only moderately sparsely punctate, the impression feeble but distinct and broadly angulate in profile ; beak cylindrical, rather slender, subequal thronghout, evenly, distinctly arcuate, scarcely as long as the pro- thorax in the male, a little longer than the latter but not sensibly more slender in the female, finely, lineately punctate, the punctures denser and confused at the sides toward base; antenne inserted well beyond the middle in both sexes, the first funicular joint as long as the next three, the second scarcely one-half as long as the first and one-half Jonger than the third, club moderate, strongly annulate in apical half, the basal joint constituting one-half the mass, obconical, densely pubescent, only just visibly less densely so very near the base. Prothorax scarcely one-fifth wider than long, shaped nearly as in limbifer, although a little less convex, the punctures fine but deep, somewhat sparsely distributed, the median line narrow but evident. Scutellum small, quadrate, glabrous and shining. L£lytra but very slightly wider than the prothorax and barely two-thirds longer, hemi-elliptical, rather obtusely rounded behind, the humeral callus almost obsolete; disk deeply but not coarsely striate, the grooves distinctly crenulate toward base; intervals twice as wide as the grooves, each with 2 single series of small, rather feeble and irregular, not _very close-set punctures. Abdomen rather finely, not densely punctate. Pro- sternum flat, the anterior constriction moderate, not crossing the middle parts but represented there by a series of three or four punctures; anterior coxe rather small, remote, separated by a little more than theirown width. Length 3.2 mm.; width 1.3 mm. Texas (Austin). Somewhat allied to limbifer, but differing greatly in its more depressed form and much finer sculpture, the scales at the sides of the pronotum are not broad as in the species mentioned, and form a border which is only one-half as wide. Two specimens. 4 Limnobaris tabida n. sp.—Oblong-oval, subparallel, narrow and rather strongly depressed, somewhat shining, piceous-black, the legs and antenne slightly rufescent ; integuments subglabrous, very sparsely clothed with long and conspicuous yellowish-white setz, slightly more robust and distinct but still sparse in lateral fifth of the pronotum, very sparse through- out beneath. Head glabrous, minutely, very sparsely punctate, the transverse impression deep and distinct; beak rather stout, evenly, somewhat feebly arcuate, almost equal in diameter throughout, coarsely, densely, rugosely punctate, with: some coarse bristling squamules at the base, about equal in length to the prothorax; antennz inserted at apical third, scape long, first funicular joint as long as the next three, second one-half longer than the third, 630 Coleopterological Notices, IV. club moderate, sparsely pubescent and shining toward base. Prothoraxr very nearly as long as wide, the sides parallel and broadly arcuate to apical fifth, then more strongly rounded, thence strongly convergent and distinctly sinuate to the apex, which is about three-fifths as wide as the base, the latter trans- verse and very broadly, evenly .and feebly bisinuate, the median lobe not prominent ; disk rather coarsely, not very densely, unevenly punctate, the impunctate line visible behind the middle, the punctures unequal in size, un- evenly distributed and often slightly elongate. Scutellum very small, wider than long. lytra but slightly wider than the prothorax and three-fifths longer, the sides rather strongly convergent and broadly feebly arcuate, the apex evenly, not broadly rounded ; humeri not prominent; striz very coarse, deep; intervals just noticeably wider than the grooves, each with a single series of coarse, deep, close-set punctures, uneven in size, often slightly elon- gate and frequently anastomosing. Abdomen strongly but not very coarsely or densely punctate. Prosternunm flat, separating the coxe by a little more than their own width. Length 2.8 mm.; width 1.15 mm. Tllinois. , The single specimen appears to be a male, and the species some- what resembles deplanata, differing in its distinctly narrower form, much smaller pronotal punctures and longer, more conspicuous dorsal vestiture, as well as the characters given in the table. 5 Limnobaris deplanata n. sp.—Oblong, depressed above, moder- ately shining, brownish-black throughout, subglabrous, the squamules small narrow and very sparsely, almost uniformly distributed above and beneath. Head minutely punctate anteriorly, alutaceous and impunctate in basal half, the transverse impression strong, broadly angulate in profile; beak with a few bristling squamules at base, rather slender, cylindrical, evenly, somewhat feebly arcuate, coarsely lineato-punctate, more densely so at the sides toward base, equal in length to the prothorax, the antenne inserted distinctly beyond the middle, the basal joint of the funicle subequal to the next three, second one-half as long as the first, not quite equal to the next two, club abrupt, rather robust, scarcely as long as the preceding five joints combined, densely pubescent, the basal joint constituting a little more than one-half the mass and more sparsely pubescent very near the base. Prothorax almost as long as wide, the sides broadly, evenly arcuate and convergent anteriorly, becoming straight and parallel in basal half, subapical constriction feeble; apex one- half as wide as the base, the median lobe of the latter broadly rounded and feeble; disk coarsely, deeply, somewhat unevenly punctate, the punctures slightly elongate-oval and distinctly separated ; impunctate line incomplete. Scutellum small, glabrous, subquadrate, widest behind. lytra but very slightly wider than the prothorax and three-fourths longer, hemi-elliptical, the apex narrowly subtruncate; humeri not prominent; disk rather coarsely deeply evenly and abruptly striate, the intervals narrow, scarcely one-half wider than the grooves, each with a single series of coarse, deep, not very close- set punctures, the line of the series slightly impressed. Abdomen rather Coleopterological Notices, IV. 631 coarsely, moderately closely punctate. Prosternum flat, evenly, feebly con- stricted but not foveate behind the apex, separating the coxe by very slightly more than their own width. Length 3.0 mm.; width 1.25 mm. Iowa (Keokuk). The single specimen, apparently a male, represents a species en- tirely distinct from any other here described in its more depressed form and coarse sculpture, and especially in the distinctly concave elytral intervals. From tabida, which it more closely resembles, it may be known by the shorter, less conspicuous vestiture, more slen- der beak and very much coarser sculpture of the pronotum. There are, judging by material which bas been recently sent me, apparently a number of species in our Central States allied to deplanata and tabida, and their separation will prove to be a problem of some difficulty. 6 Limnobaris punctiger Lec.—Proc. Am. Phil. Soc., XV, p. 214 (Centrinus). Oval, rather narrow, piceous, the legs, beak and antenne paler, rufous; vestiture beneath consisting of fine sparse squamules, almost absent above, but each puncture of the elytral series apparently with a long slender whitish scale. Beak slender, equal throughout, cylin- drical, evenly, moderately arcuate, nearly as long as the head and prothorax, smooth, finely, linearly punctate at the sides toward base, the antennee inserted a little beyond the middle, the scape long, ex- tending almost to the eyes, the first funicular joint as long as the next three, the second fully one-half as long as the first and nearly as long as the next two, the club rather small but abrupt, the basal joint constituting a little more than one-half the mass, somewhat obeonical, sparsely pubescent and slightly shining. Prothorax one- third wider than long, the sides parallel and feeblv arcuate to just beyond the middle, then broadly rounded and convergent to the apex, the latter one-half as wide as the base, the apical constriction very small and feeble; punctures coarse, somewhat irregular in form, not very dense; mes-epimera strongly exposed from above. Scutellum small, quadrate. Elytra distinctly wider than the pro- thorax and more than twice as long, hemi-elliptical, the apex rather narrowly rounded, the humeri feebly tumid; striz deep, abrupt, remotely punctate along the bottom, the intervals flat, equal, one- half wider than the grooves, each with a series of relatively coarse deep rounded and somewhat remote punctures. Prosternum flat but with a very strong transverse subapical constriction, the coxe \ 632 Coleopterological Notices, IV. separated by their own width. Abdomen coarsely punctured, the last two sutures gradually very wide toward the middle as usual. Length 3.2 mm.; width 1.3 mm. Texas. Cab. LeConte. Represented by the unique type, which is in a rather poor state of preservation, being much rubbed; it is apparent, however, from broken fragments, that the elytral scales are normally quite distinct, and that there are some scattered scales toward the sides of the pronotum. 7 Limnobaris denudata n. sp.—Oval, rather depressed, rufo-piceous throughout, the integuments shining, the vestiture consisting of very small sparse and yellowish squamules, only evident toward the sides of the pronotum and elytra, and, on the latter, especially near the apex; on the under surface they are only distinct toward the abdominal apex. Head minutely, very remotely punctate, the impression strong, the beak rather stout, cylindrical, evenly, distinctly arcuate, not quite as long as the prothorax, minutely, line- arly punctate, more coarsely densely and rugosely so at the sides very near the base; antennz inserted well beyond the middle, the first funicular joint as long as the next three, the second but slightly more than one-half as long as the first and about as long as the next two, outer joints gradually robust and almost continuous in outline with the club, which is very small, oval, searcely longer than the preceding three joints together, densely pubescent throughout, and with the basal joint fully one-half the mass. Prothorax but slightly wider than long, the sides parallel, evenly and distinctly arcuate, gradually convergent from apical third, feebly constricted behind the apex, which is fully three-fifths as wide as the base, the latter transverse, broadly bisinuate; disk with a rather broad impunctate line, narrow or obsolete toward apex, the punctures small but uneven im size and generally very sparse, much smaller near the median line. Scutellum small, subquadrate, glabrous. Elytra subequal in width to the prothorax and barely three-fourths longer, the sides feebly convergent and slightly arcuate, the apex abruptly, some- what narrowly but obtusely rounded ; humeri very feebly tumid; disk rather coarsely but only moderately deeply striate, the intervals flat, nearly twice as wide as the grooves, each with a single series of punctures which vary greatly in size, but generally deep, somewhat coarse, especially toward base and moderately approximate. Abdomen with the first suture evident and strongly arcuate toward the middle, the first two segments moderately strongly, not densely punctured, narrowly and feebly impressed along the middle. Pro- sternum flat, coarsely punctate, separating the coxe by distinctly more than their own width. Length 3.3 mm.; width 1.3 mm. Florida, This species is not at all closely related to any other; it is repre- sented by a single male. The sixth funicular joint is longer than either the fifth or seventh, and the club is unusually small. Coleopterological Notices, IV. 633 8 Limnobaris planiuscula n.sp.—Oval, rather strongly depressed, ‘polished, black, the elytra, legs and beak more or less rufous, the first some- what clouded with piceous toward the scutellum ; vestiture throughout above and beneath consisting of very small, remote and entirely inconspicuous sete. Head minutely, sparsely punctate, the transverse impression strong; beak slender, cylindrical, equal throughout, evenly, rather feebly arcuate and not longer than the prothorax, smooth, minutely, sublineately punctured, more coarsely and confusedly so at the sides toward base; antenne inserted just beyond the middle, the first funicular joint rather robust, as long as the next three, second but slightly longer than wide, a little longer than the third and scarcely more than one-third as long as the first, club moderate. Prothorax about as long as wide; sides parallel and feebly arcuate to apical fourth, then broadly rounded, convergent and somewhat broadly and feebly constricted to the apex, which is rather more than one-half as wide as the base, the latter transverse, the lobe small and feeble, rounded; disk rather coarsely, deeply, somewhat unevenly and closely punctate, the punctures always distinctly separated, the impunctate line narrow but evident. Scutellum small, flat, glabrous, anteriorly parabolic, wider behind, the hind margin broadly, evenly arcuate. lytra but just visibly wider than the prothorax and three-fourths longer, hemi-elliptical, rather acutely rounded at apex, the humeri not pro- minent; disk with moderately deep striz, the intervals flat, scarcely more than one-half wider than the grooves, each with a single series of fine but deep, irregular and unevenly but generally remotely spaced punctures. Ab- domen shining, the first suture entirely obliterated except near the sides, the first two segments finely, very remotely punctured, the last three rather coarsely and much more closely so. Prosternum flat, the coxe remote, separated by a little more than their owu width, the subapical constriction distinct. Length 2.9 mm.; width 1.0 mm. Texas. The single specimen appears to be a female, the basal parts of the abdomen being entirely unmodified, but as the male impression is generally very slight indeed in this genus, it is not possible to be entirely certain of the sex, especially in consideration of the short beak. 9 Limnobaris nasuta Lec.—Proc. Ac. Nat. Sci., Phila., 1859, p. 79 (Baridius). Oval, depressed above, strongly shining, black, the vestiture con- sisting of small and very sparse sete. Beak slender, cylindrical, evenly, feebly arcuate, as long as the prothorax in the male and one-fourth longer in the female, smooth, polished, finely, sublinearly punctate, more closely so at the sides; antenne inserted distinctly beyond the middle, the first funicular joint almost as long as the next four, the second more than twice as long as wide but not quite 634 Coleopterological Notices, IV. as long as the next two; club rather small but abrupt, densely pubescent throughout, and with the basal joint constituting a little more than one-half the mass. Prothorax about as long as wide, the sides parallel and broadly, evenly arcuate to near apical fifth, then convergent and distinctly constricted to the apex, which is scarcely more than one-half as wide as the base; disk rather finely but deeply, somewhat unevenly and not very densely punctate, the median line narrow. Scutellum small, glabrous, quadrate, the posterior angles rather prominent. EHlytra slightly wider and four- fifths longer than the prothorax, hemi-elliptical, evenly, rather narrowly but not acutely rounded behind, the humeri feeble; disk with rather coarse but moderately deep striz, the intervals nearly twice as wide as the grooves, flat, each with a single series of gene- rally small but deep, not very close-set punctures, which vary greatly in size, more or less broadly confused toward the base of the third. Abdomen polished, rather finely, not very densely punctured. Prosternum flat, separating the coxz by more than their own width, the punctures not conspicuously coarse. Length 3.1-4.4 mm.; width 1.35-1.75 mm. California (San Francisco) and Texas (El Paso). Numerous specimens. ‘The male does not differ from the female by any strue- tural peculiarities of note. 10 Limnobaris oblita n. sp.—Elongate-oval, moderately convex, strongly shining, the elytra minutely granulato-reticulate and slightly aluta- ceous, black throughout, the legs and antenne with a piceous tinge, sub- glabrous, the vestiture excessively sparse throughout, the setze very small and inconspicuous. Head minutely but strongly, sparsely punctate, the impression quite distinct; beak slender, cylindrical, evenly, rather feebly arcuate, Shining, finely, linearly and not very densely punctate, with two or three bristling squamules at the upper. border of the eyes, about as long as’ the head and prothorax ; antenne inserted just beyond the middle, the basal joint of the funicle nearly as long as the next four, second barely one-half longer than the third, club oval, nearly as long as the five preceding joints combined, the basal joint composing three-fifths of the mass and sparsely pubescent toward base. Prothorar slightly wider than long, the sides just visibly convergent, evenly and feebly arcuate from the base to the constric- tion, the latter rather deep and abrupt and situated at a somewhat unusually great distance behind the apex, the latter broadly sinuate in the middle, one- half as wide as the base, which is transverse and almost perfectly straight throughout; disk not very coarsely but deeply, somewhat closely punctate, the punctures rather unevenly distributed, a median line not extending to the apex and a wide apical margin entirely impunctate. Scutellum small, flat, polished, triangular, widest and truncate behind. lytra quite distinctly ' ; 4 Coleoptérological Notices, IV. 635 wider than the prothorax and nearly twice as long, the sides parallel and very feebly arcuate in basal two-thirds, then gradually convergent, the apex rather narrowly rounded; humeral callus small and but slightly prominent ; disk deeply, abruptly, moderately coarsely striate, the intervals flat or feebly concave, from one-half to once wider than the grooves, each with a single series of small, not very deep, close-set and uneven punctures. Abdomen strongly but not densely punctate. Prosternum flat, with a fine transverse impressed line behind the apex, the latter feebly sinuate in the middle; coxe rather large, separated by fully three-fourths of their own width. Length 3.5 mm.; width 1.4 mm. Wisconsin. This species is not closely allied to any other and appears to form one of the transitions from the species with stout beaks and remote anterior coxe, to those with very slender straight beaks and more narrowly separated coxe. The unique specimen is a female. 11 Limnobaris seclusa n. sp.—Oval, moderately stout, rather feebly, evenly convex above, shining, piceous, the legs rufous ; vestiture very uneven, consisting, on the pronotum, of large broad and pale scales toward the sides and before the scutellum, the scales becoming narrower and posteriorly oblique anteriorly and toward the middle, elsewhere dark in color, smaller and incon- spicuous ; on the elytra the large pale scales form a short line on the third interval behind the middle, and several small spots along the base, elsewhere ' narrow, elongate, darker and of different sizes from very minute sete to con- spicuous scales; on the under surface they are elongate and rather sparse throughout. Head almost completely impunctate but minutely granulato- reticulate, the impression distinct; beak cylindrical, rather stout toward base, evenly, feebly arcuate, with bristling scales just before the eyes, a little longer than the head and prothorax in the female, but not quite as long as the pro- thorax in the male, rather coarsely, sublinearly punctate; antennz inserted at the middle in the female or distinctly beyond in the male, the basal joint of the funicle as long as the next three, second but slightly longer than the third, club moderate, the basal joint forming much more than one-half the mass, densely pubescent but gradually more sparsely so and slightly shining toward base. Prothorax nearly as long as wide, the sides parallel and scarcely arcuate to apical third, then broadly rounded and convergent to the apex, which is about one-half as wide as the base; apical constriction almost obso- lete; base transverse, broadly bisinuate; disk with a wide entire and con- spicuous polished impunctate line, the punctures coarse and dense. Scutellum small, glabrous, a little longer than wide. Llytra slightly wider and about one-half longer than the prothorax, evenly hemi-elliptical, the humeral callus feeble; disk with rather fine, moderately deep, finely, conspicuously and re- motely punctured strie, the intervals flat, fully twice as wide as the grooves, finely, confusedly, very deeply but not densely punctate throughout. Pro- sternum flat, separating the coxe by much more than their own width. Length 2.5-3.2 mm.; width 1.1-1.4 mm. Annats N.Y. Acap. Sci., VI, Oct. 1892.—42 636 Coleopterological Notices, IV. Arizona; Southern California. The Panevil characters of the above description are drawn from the female; in the single very small male before me, the prothorax is quite distinctly wider than long, with the apex three-fifths as wide as the base. The great disparity in the length of the beak is, how- ever, the only very prominent sexual difference. In certain general characters of sculpture and vestiture, seclusa makes an excellent transition from the normal forms of this subgenus to grisea. _. IT. 12 Limnobaris grisea Lec.—Proc. Am. Phil. Soc. se p. 312 (Cen- trinus). Oblong-oval, moderately convex, piceous-black, the elytra and legs rufous; vestiture consisting of large elongate-oval yellowish- white scales, not contiguous beneath except in anterior two-thirds of the met-episterna; on the pronotum they are still more elongate, denser near the sides and finest and sparsest at lateral fourth; on the elytra they are broadly oval and unevenly disposed in strongly marked lines along the intervals, the line of the third interval © being especially wide and conspicuous. Head glabrous, minutely, sparsely and feebly punctate, the impression very feeble; beak cylindrical, rather stout, evenly and rather strongly arcuate, as long as the head and prothorax in the female, but only as long as the latter in the male, the basal joint of the funicle as long as the next four together, the second as long as the next two, outer joints very short and transverse; club in the male large, densely pubes- cent, as long as the six preceding joints together, oval, pointed, the rings decreasing abruptly in transverse diameter, the basal joint much less than one-half the mass. Prothorax coarsely, closely punctate, two-thirds wider than long, the sides subparallel in basal two-thirds, then strongly rounded and rapidly convergent but not distinctly constricted to the apex, basal angles obtuse, the mes- epimera strongly exposed from above. Scutellum rather large, quadrate, glabrous, but indented and setose at each side. Elytra a little wider than the prothorax and about twice as long, hemi-ellip- tical in outline, the striz fine, the intervals strongly, confusedly punctate and from two to more than three times as wide as the grooves. Length 3.4 mm.; width 1.65 mm. The three specimens Goo me are from Arizona and New Jersey ; it was originally described from Texas. In the female the antennal Coleopterological Notices, IV. 637 club is notably smaller than in the male, and the funicle is longer and more slender, but aside from the shorter beak of the male I do not observe any other sexual differences. ITI. 13 Limnobaris confusa Boh.—Sch. Curc., III, p. 740 (Centrinus). Oblong-oval, subdepressed, alutaceous, black throughout, the antenne slightly paler; integuments subglabrous, the vestiture consisting of very small fine white squamules, sparsely disposed above and beneath. Beak in the male rather stout, cylindrical, finely, densely punctured and squamulose toward base, straight in basal two-thirds, then bent, scarcely more than three-fourths as long as the prothorax, the antenne inserted distinctly beyond the middle, the basal joint of the funicle robust, not as long as the next three, the second small, obconical, one-half longer than wide, the club moderately stout, oval, densely pubescent and nearly as long as the preceding five joints combined. Prothorax slightly wider than long, sides parallel and feebly arcuate, rounded convergent and con- stricted toward apex, the latter one-half as wide as the base; punc- tures fine, not very close-set, the impunctate line distinct. Elytra a little wider and three-fourths longer than the prothorax, hemi- elliptical, the humeral callus large but feeble; strixw fine, the inter- vals flat, wide, finely and more or less confusedly punctate. Pro- sternum separating the coxe by two-thirds of their own width or less, with two slender slightly contorted ante-coxal spiniform pro- cesses, which are very oblique, and immediately before which there is a large deep excavation. In the female the beak is more slender, more evenly and distinctly arcuate, smooth, polished and evidently punctured only near the base, not longer than in the male, being about three-fourths as long as the prothorax; the prosternum is flat and the intercoxal process is not noticeably wider than in the male. Length 2.7-3.5 mm.; width 1.1-1.5 mm. In the description of Boheman, the beak is said to be as long as the prothorax in the italicized diagnosis, but as long as the head and prothorax in the description which follows, the fact being, if I have correctly identified the species, that it is much shorter than the prothorax in both sexes. In the description referred to I cannot comprehend the allusion to a “ pygidium.”’ | The material before me includes series from Florida, North 638 Coleopterological Notices, IV. Carolina, New York, Indiana, Nebraska and Colorado, some being smaller, others larger, some with the male prosternal spines short, others so long as to nearly attain the anterior margin. The want of any accurate definition of the species deters me, however, from further investigation of these forms, although from the constantly small size and less developed aute-coxal processes of several good series, collected in definite localities, it is possible that two or three — species or subspecies may be commingled. This species is said to occur in California (Mann. Bull. Mosce., 1848, 2d, 293), but I have not seen any specimens from that region. 14 Limnobaris ebena n. sp.—Oblong-oval, moderately convex, pol- ished, black throughout; vestiture above and beneath consisting of small and very sparse slender white squamules, much less conspicuous than in concinna, but more so than in conjinis, unevenly sublineate on the elytra. Head minutely, scarcely visibly punctate, the constriction feeble but distinct, caused by a slight gibbosity at the base of the beak, the latter very slender, evenly cylin- drical, almost straight, much longer than the head and prothorax, shining, moderately punctured ; antenne inserted scarcely at all beyond the middle, slender throughout, the basal joint of the funicle as long as the next three, the second nearly two-thirds as long as the first and equal to the next two, the club very slender, fusiform, not abrupt, densely, coarsely pubescent and rather longer than the preceding four joints combined, the basal joint com- posing nearly one-half of the whole. Prothorax nearly one-third wider than long, the sides just visibly convergent from the base to the distinct apical constriction, and broadly, evenly arcuate ; apex one-half as wide as the base, the latter transverse, the median lobe small and feeble; mes-epimera strongly exposed from above; disk rather finely, not deeply and somewhat sparsely punctate, the impunctate line distinct. Scutellum small, quadrate. Hlytra oblong, one-third longer than wide, distinctly wider than the prothorax and fully twice as long, the sides parallel and nearly straight, slightly rounded at base to the prothorax and very broadly rounded in apical third; disk with deep, very even, abrupt grooves, the intervals from two to three times as wide as the striae, finely feebly and sparsely punctate, the punctures forming rather even series on the second, fourth and sixth, but confused on the others. Abdomen finely, feebly and sparsely punctate. Prosternum broadly, feebly impressed, separating the coxe by three-fourths of their own width, the transverse subapical impression even, distinct, with a small impressed pit adjoining it anteriorly. Length 3.8 mm.; width 1.65 mm. Texas. One female example. This species is allied to confinis, but is more robust, with a longer beak in the female, more widely sepa- rated anterior coxe and more distinct squamules, With the type I associate a male and female from Indiana, which Coleopterological Notices, IV. 639 differ only in being a little less robust and less polished, with the beak in the female not longer than the head and prothorax, and, in the male, distinctly shorter than the latter, this sex having two long slender prosternal processes. 15 Limnobaris puteifer n. sp.—Oblong-oval, moderately convex, black, rather shining and subglabrous throughout, the vestiture consisting of very minute remote setiform squamules, more distinct beneath than above. Head minutely, sparsely punctured, deeply inserted, the transverse constric- tion very feeble; beak in male rather stout, evenly cylindrical, feebly arcuate, three-fourths as long as the prothorax, roughly, deeply punctured and sparsely squamulose; antennz short, inserted beyond the middle, the basal joint of the funicle robust, not as long as the next three, the second one-half longer than wide and one-half longer than the third, outer joints gradually trans- verse and coarctate, club nearly as in confinis. Prothorax about one-third wider than long, the sides feebly convergent from the base and slightly arcu- ate, the apical constriction strong; apex a little more than one-half as wide as the base, the latter transverse ; median lobe very small, feeble; disk alu- taceous, rather finely sparsely and not deeply punctate, the impunctate line passing only slightly beyoud the middle. Scutellum small, oblong. lytra nearly one-third wider than the prothorax and two and one-half times as long, oblong, parallel, evenly rounded in apical third, the humeri scarcely promi- nent; disk rather finely, abruptly, evenly striate, the intervals flat, about three times as wide as the grooves, each with a single series of fine remote _ punctures. Abdomen rather closely punctured toward the sides, sparsely in the middle, the punctures fine. Prosternum with a large oval extremely deep excavation in the middle, and with a short straight acute and very oblique process before each coxa, the coxe separated by two-thirds of their own width. Length 3.0 mm.; width 1.25 mm. Indiana ? This species bears an extreme resemblance to confinis, being identical in sculpture and vestiture, but the ante-coxal processes are much more developed, the elytra relatively wider and longer, the second joint of the antennal funicle more elongate, and the pro- sternum differs radically in having a large extremely deep median excavation. A single male, without definite indication of locality, but in all probability from the region indicated. : 16 Limnobaris confimis Lec.—Proc. Am. Phil. Soc., XV, p. 317 (Centrinus). Oblong-oval, moderately convex, black throughout, shining, sub- glabrous, the vestiture consisting of very small sparse and subre- cumbent sete which, on the elytra, are arranged in single incon- spicuous series. Beak in the male thick, cylindrical, nearly straight, 640 , Coleopterological Notices, IV. searcely more than three-fourths as long as the prothorax, roughly punctured, dull, sparsely squamulose, the antenne inserted dis- tinctly beyond the middle, short, the basal joint of the funicle robust, not as long as the next three, the second a little longer than wide and slightly longer than the third, outer joints transverse ; club densely pubescent, rather robust and fully as long as the pre- ceding five joints together. Prothorax subconical, slightly wider than long, the sides evenly, feebly arcuate, the apical constriction distinct; apex three-fourths as wide as the base; punctures rather fine, shallow and sparse, the impunctate line distinct. Hlytra oblong, parallel, obtusely rounded behind, distinctly wider than the prothorax and more than twice as long; strie fine, abrupt; inter- vals fully three times as wide as the grooves, each with a single series of minute, extremely distant punctures. Prosternum broadly, very feebly impressed, with a feeble elevated cusp before each coxa, and a small foveiform pit just behind the apex, the coxe separated by three fifths of their own width. Length 2.3-2.9 mm; width 0.9-1.2 mm. | The four specimens before me are from New York, Virginia, Iowa and Texas, the latter being the only female. In this sex the beak is very slender, cylindrical, nearly straight, as long as the head and prothorax, and the antenne are longer and with a more slender club, but, as the elytral punctures are not by any means so distinct as in the northern specimens, it may not actually belong to this species. 17 Limnobaris concurrens nh. sp.—Oblong-oval, distinctly convex, black, moderately shining and subglabrous throughout, the minute slender setiform squamules very sparse above and beneath, forming single series on the elytra. Head dull, minutely, sparsely punctate, the transverse impres- sion fine and distinct, the basal portion of the beak feebly tumid above the eyes; beak in the male rather slender, cylindrical, coarsely, densely punc- tured at the sides, fully as long as the prothorax, straight in basal two-thirds, slightly arcuate thence to the apex ; antenne inserted well beyond the middle, the basal joint of the funicle robust, not as long as the next three, the second scarcely one-half as long as the first and a little longer than wide, club very narrow, elongate-oval, densely pubescent, as long as the five preceding joints combined. Protherax but slightly wider than long, the sides feebly convergent and nearly straight to apical third, then broadly rounded, the apical constric- tion distinct ;.apex truncate, three-fifths as wide as the base, the latter broadly, feebly bisinuate, the lobe small and feeble ; disk alutaceous, finely, not strongly, sparsely punctate, the impunctate line narrow but almost entire. Scutellum very small, subquadrate, glabrous. S/ytra about one-third wider than the prothorax and a little more than twice as long, parallel, evenly rounded in Coleopterological Notices, TV. 641 apical two-fifths ; humeral callus not prominent; disk polished, rather finely, abruptly, evenly striate, the intervals flat, a little more than twice as wide as the grooves, each with a single series of fine, rather distant punctures. Abdo- men feebly, not closely punctured. Prosternum broadly, very feebly impressed along the middle, with a small feeble subtransverse fovea behind the apex, the sides of the longitudinal impression slightly prominent in the form of a low obtuse ridge for a short distance before each coxa, but without trace of ante- coxal cusp, the coxe separated by slightly less than one-half of their own width. Length 2.2-3.2 mm.; width 0.85-1.4 mm. District of Columbia. Mr. Jiilich. The above description is drawn from the male. In the female the beak is slightly more slender very feebly arcuate and as long as the head and prothorax, with the antenne inserted at or just behind the middle. The antenne are longer and more slender, the second funicular joint almost as long as the next two, and the prosternum | is perfectly flat, separating the coxe by fully three-fourths of their own width. Concurrens is allied to confinis, but differs in its much longer beak, especially in the male, and by its narrower an- tennal club. Numerous examples. 18 Limnobaris concinna Lec.—Proc. Am. Phil. Soc., XV, p. 316 (Centrinus). Oblong-oval, decidedly convex, black throughout, moderately shining, smooth, the vestiture consisting above and beneath of long sparse narrow white but very distinct squamules, arranged in single lines on the elytral intervals. Beak not quite as long as the pro- thorax and slender in the female, distinctly shorter and thicker in the male, feebly arcuate, slightly gibbous at the basal constriction, which is fine but distinct, roughly punctured and dull in the male, a little smoother in the female, the antenne very slightly ante-median in both sexes, short, stout, the first funicular joint as long as the next three, two to seven small, equal in length but increasing in width; club relatively large, fully as long as the preceding six joints, densely, rather coarsely pubescent, the basal joint composing nearly one-half the mass. Prothorax not quite as long as wide, parallel, distinctly constricted at apex, the latter about three-fourths as wide as the base; disk rather sparsely, strongly punctate. Scu- tellum very small, elongate-oval, glabrous. Elytra equal in width to the prothorax and three-fourths longer, parallel, rounded behind in apical third; strie very fine; intervals minutely, uniseriately punctate and remotely transversely creased. Prosternum flat, sepa- 642 Coleopterological Notices, IV. rating the cox by three-fifths of their width, the anterior constrie- tion in the form of a transverse fold of the surface, immediately before. which there are two small moderately distant punctiform fovee. Male without trace of ante-coxal spines. Length 1.8-2.5 mm.; width 0.7-1.0 mm. Florida (Enterprise and Baldwin) and Texas, also said by LeConte to oceur in New York, but I have not recognized it from this locality. 19 Limnobaris fratercula n. sp.—Oval, feebly convex, deep black throughout, rather strongly shining, subglabrous, the fine squamules very small and sparse above and beneath. Head alutaceous, very minutely, sparsely punctate, the beak tumid at base, the transverse impression dis- tinct; beak in the male rather stout, eylindrical, just visibly shorter than the prothorax, feebly arcuate, becoming straight in basal two-thirds, punc- tured at the sides, especially toward base, shining ; antenne slightly ante- median, the first funicular joint stout, not longer than the next two, the second slightly longer than wide, outer joints broader, almost continuous in outline with the club, the latter densely pubescent, moderately stout, about as long as the preceding four joints together, the first one adjoining it being more pubescent than the others. Prothorax very nearly as long as wide, the sides feebly convergent and broadly arcuate from the base, the apical con- striction almost obsolete; apex truncate, rather more than one-half as wide as the base; basal lobe small and very feeble; disk not coarsely but some- what strongly, moderately sparsely punctured, the impunctate line distinct. Secutellum small, subquadrate. Llytra a little wider than the prothorax and fully twice as long, elongate-oval in form, the humeri but slightly prominent ; disk rather finely striate, the strie becoming coarser and feebly crenulate toward base; intervals flat, about twice as wide as the grooves, each with an almost even single series of rather coarse, deep and somewhat distant pune- tures. Abdomen polished, finely, not densely punctate. Prosternum fiat, with a small, rather deep pit behind the apical margin ; coxe separated by barely one-half of their own width; ante-coxal processes completely obsolete, the surface even. Length 2.5 mm.; width 1.0 mm. Florida. The three specimens before me are males, the abdomen having a small elongate-oval and rather deep subbasal impression. The species is related to confusa, but differs in its small size, uniseriate elytral intervals, simple male prosternum and slightly longer beak. From confinis it differs in its broader, more depressed form, much coarser elytral striz and larger, more close-set serial punctures. 20 Limnobaris seminitens n. sp.—Elongate-oval, feebly convex, moderately shining, minutely reticulate, the pronotum alutaceous, black, sub- Coleopterological Notices, IV. 643 glabrous, the small fine squamules very sparse throughout. Head minutely, sparsely punctate, the transverse impression feeble; beak slender, feebly, evenly arcuate, evenly cylindrical, smooth, polished, finely, sparsely lineato- punctate, confusedly so near the base, equal in length to the prothorax, the antenne inserted just behind the middle, slender, the first funieular joint fully as long as the next two, the second twice as long as wide and one-half longer than the third, club rather narrow, oval, as long as the preceding four joints combined. Prothorax nearly as long as wide, the sides nearly parallel and straight in basal two thirds, then gradually broadly, evenly arcuate and convergent to the apex, the subapical constriction feeble; apex truncate, distinctly more than one-half as wide-as the base, the median lobe of the latter feebly rounded; disk finely, sparsely punctate, the impunctate line dis- tinct. Scutellum small, subquadrate, slightly broader behind. Elytra but little wider than the prothorax, fully twice as long as the latter, parallel, evenly rounded in apical third ; humeri scarcely at all prominent; disk with fine abrupt rather deep and even striz, the intervals flat, fully three times as wide as the grooves, each with a single series of fine, feeble, rather distant punctures, confused toward the base of the third. Abdomen finely, sparsely punctured, but, as usual, densely so toward apex. Prosternum flat, with a small subapical pit, the coxe separated by one-half of their own width. Length 3.5 mm.; width 1.4 mm. Nebraska. Not closely allied to any other species known to me, and repre- sented by a single specimen which is undoubtedly the female, although the abdomen has a small feeble subbasal impression, and the fifth segment a small rounded indentation. A specimen in my cabinet from Florida also belongs apparently to this species, but is larger and with a much longer beak. EV: 21 Limnobaris prolixa Lec.—Proc. Am. Phil. Soc., XV, p. 317 (Cen- trinus). Slender, parallel, convex, shining, subglabrous, the dorsal setiform Ssquamules very minute but longer and more visible toward the sides of the prothorax. Beak feebly, evenly arcuate, slender, cylin- drical, as long as the prothorax in both sexes, a little thicker and much more densely punctate in the male, the transverse basal con- striction almost obsolete; antenne inserted at the middle in the male, or far behind this point in the female, the first funicular joint as long as the next three, second one-half longer than the third ; club moderate, as long as the four preceding joints combined. Pro- thorax slightly but distinctly wider than long; the sides parallel, 644 Coleopterological Notices, IV. feebly arcuate; subapical constriction small, distinct; apex nearly three-fourths as wide as the base, the disk finely, sparsely punctate and slightly .alutaceous. Scutellum small, glabrous, quadrate. Elytra very slightly wider than the prothorax and nearly three times as long, parallel, obtusely rounded behind in apical fourth; humeral callus small but rather prominent; strize very fine but deep; intervals wide, uniseriately, minutely and remotely punctate. Prosternum broadly but strongly impressed along the middle in the female; in the male it has a deep rounded pit near the middle, and, before each coxa, a slender process which is much more developed than in any other of our apygidiate Barini, projecting very nearly as far beyond the apical margin of the prosternum as the distance between the latter and the coxa, the apices diverging horizontally toward apex in order not to interfere with lateral movements of the beak; coxee separated by nearly one-third of their own width. Length 2.3-3.4 mm.; width 0.75-1.1 mm. Illinois and Michigan. I also associate with this species a num- ber of specimens taken by Mr. Wickham at Greeley, Colorado, which seem to be merely a little smaller in size; in the single male, however, the prosternal spines are very much shorter, only project- ing as far as the anterior margin. I do not notice the bronzy lustre mentioned by LeConte. 3 22 Limnobaris nitidissima n.sp.—Very elongate, parallel, convex, highly polished, black with a rather strong eneous lustre; legs pale, bright rufo-testaceous ; integuments subglabrous, the minute sete very sparse above, slightly longer and more evident toward the sides of the pronotum, only dis- tinct beneath on the met-episterna, where they are broader, somewhat dense and squamiform. Head very minutely, sparsely punctate, the impression almost obsolete, broadly subfoveate in the middle; beak very slender, straight in basal half, gradually feebly arcuate and rufescent thence to the apex, smooth, cylindrical, punctate at the sides toward base and fully as long as the head and prothorax; mandibles small, strongly arcuate, thick, deeply notched and unevenly bidentate at apex, and with two or three strong denticles ex- ternally toward base; antenne inserted at basal two-fifths, slender, the scape just attaining the eye, basal joint of the funicle not quite as long as the next three, second one-half longer than the third, club moderate. Prothorax about as long as wide; sides straight and parallel fully to apical third, then broadly rounded, convergent and sinuate to the apex, which is two-thirds as wide as the base, the latter transverse, the median lobe extremely feeble; disk with a feebly defined, incomplete median line, the punctures minute and very sparse. Scutellum small, quadrate, glabrous. Hlytra quite distinctly wider than the prothorax and two and three-fourths times as long, parallel, the Coleopterological Notices, IV. 645 sides feebly convergent in apical third, the apex narrow but obtusely rounded ; humeri slightly prominent; disk nearly as in prolira, but with the punctures still more minute and feeble. Prosternum strongly impressed along the mid- dle, separating the coxe by fully one-third of their own width. Length 4.1 mm.; width 1.35 mm. Texas (Galveston). A single female. This species may be recognized at once by its polished eeneous surface and red legs; it differs greatly from prolixa in the latter respect, and also in its longer beak. V. 23 Limnobaris longula Lec.—Proc. Am. Phil. Soc., XV, p. 316 (Centrinus). Hlongate-oval, convex, black, the tarsi and antenne somewhat pale, shining, the vestiture white, consisting of long, slender, rather sparse but conspicuous squamules, almost evenly distributed above and beneath, becoming shorter and‘squamiform on the sternal para- pleure. Head finely, sparsely punctate, the constriction obsolete, the frontal fovea very small and prolonged anteriorly for a short distance; beak in the female moderately slender, slightly thicker toward base, cylindrical, smooth, polished, evenly, moderately arcuate, about as long as the head and prothorax, almost impunc- tate but abruptly densely so and with erect squamules before the eyes; antenne inserted a little behind the middle, the basal joint of the funicle not as long as the next three, the second scarcely two- thirds as long as the first and as long as the next two; club mode- rate, densely pubescent, not very slender. Prothorax two-fifths wider than long, the sides broadly, feebly arcuate, becoming conver- gent and gradually broadly and just visibly sinuate to the apex, parallel toward base, the apex nearly three-fifths as wide as the base ; disk rather strongly, not very densely punctate, with a narrow im- punctate line. Scutellum small, glabrous. Elytra scarcely at all wider than the prothorax and about twice as long, hemi-elliptical, the striz not very coarse, with the edges finely, feebly, unevenly, suberenulate, the intervals finely, sparsely, unevenly, punctured and transversely, unevenly rugulose. Prosternum strongly impressed along the middle, separating the anterior coxe by fully three-fourths of their own width. Length 4.0-4.38 mm.; width 1.65-1.8 mm. Texas and Florida. In the original type, from which the above description is taken, the abdomen has, near the base, a narrow 646 Coleopterological Notices, IV. elongate and very feeble impression; it is however a female, as is conclusively shown by the polished, almost impunctate beak; the impression is spurious, and has very nearly misled me in several species of genera allied to this. There are but two examples known to me, and the Florida specimen in my cabinet is a male, a little larger than the Texas type, intense black throughout, the beak short, rather thick, cylindrical, densely, deeply lineato-punctate, evenly, feebly arcuate and distinctly shorter than the prothorax, the antenne being inserted at apical two-fifths; otherwise the two specimens seem to agree very well indeed, except that the male is a little stouter and with less elongate elytra, rather the reverse of what might be expected. 24 Limnobaris rectirostris Lec.—Proc. Am. Phil. Soc., XV, p. 315 (Centrinus). Elongate-oval, convex, black, polished, the pronotum slightly alutaceous, subglabrous, the vestiture consisting of minute slender white squamules, very sparse throughout. Beak in the male scarcely as long as the prothorax, thick, densely punctate, evenly cylindrical throughout, compressed and carinate above, the frontal constriction obsolete but represented by a large deep and transversely angulate fovea; antenne inserted at the middle, the second funicular joint nearly as long as the first and as long as the next two; club mode- rately stout, elongate-oval, densely pubescent, as long as the four preceding joints combined, and with the basal joint .constituting two-fifths of the mass. Prothorax not quite as long as wide, feebly subconical, the sides more strongly arcuate before the middle, the apex two-thirds as wide as the base; punctures rather uneven in distribution but generally not very close; median line distinct. Elytra but little wider than the prothorax and much more than twice as long, the striz fine, abrupt; intervals wide, finely, feebly, rather sparsely and transversely punctate, the punctures confused on the third, but more or less evenly uniseriate on the others. Pro- sternum broadly sinuate at apex, strongly, transversely constricted behind the apex, broadly, feebly impressed along the middle, sepa- rating the coxe by one-half their own width. Length 4.2—-4.7 mm. ; width 1.7-1.9 mm. Indiana and Illinois. In the female the beak is very slender, evenly but extremely feebly arcuate and fully one-half longer than the prothorax, the prosternum flat. In three of the four males Coleopterological Notices, IV. 647 before me the beak is a little longer than the prothorax, with the frontal fovea much more feeble, the body more slender and the pro- sternum perfectly flat along the. middle, but they are otherwise so similar to the form which I regard as typical, that I hesitate to describe them under a separate name. 25 Limamobaris calwa Lec.—Proc. Am. Phil. Soc., XV, p. 314 (Cen- trinus). Oblong, convex, moderately shining, the very small slender squa- mules. sparse and inconspicuous above, but more distinct beneath, although still sparse. Head without trace of the feeblest transverse impression, but with a minute subobsolete median puncture, the beak in the male stout, shining but deeply, rugosely punctured, feebly compressed and subcarinate above, equal in length to the prothorax, straight, broadly bent near the middle and thence feebly flattened to the apex; antenne inserted slightly beyond the middle, slender, the second funicular joint much longer than the next two; club slender, pointed, as long as the preceding four joints combined. Prothorax distinctly wider than long, the sides strongly, evenly rounded at apical third to the constriction, the apex tubulate and slightly wider than one-half the base; disk not very coarsely but . deeply and somewhat densely punctate, the impunctate line narrow and not attaining the apex. Scutellum small, quadrate. Elytra two-fifths longer than wide, scarcely at all wider than the prothorax and barely twice as long, obtusely rounded behind; sides distinctly convergent throughout; disk finely striate, the intervals from two to three times as wide as the grooves, coarsely, confusedly, rugosely but not very densely punctured. Abdomen very closely punctured. Prosternum obsoletely impressed along the middle, separating the coxee by barely more than one-fourth of their own width. Length 5.2 mm.; width 2.2 mm. Pennsylvania, Georgia and Florida. The male has a small elon- gate-oval feeble impression near the base of the abdomen. In the original type the sides of the prothorax are parallel and almost per- fectly straight nearly to apical third, but in other specimens they are slightly convergent and strongly arcuate; in the Pennsylvania male the legs are black and the interstitial punctures coarse, while in another example the legs are red and the punctures finer. The description is drawn from the type specimen. 648 : Coleopterological Notices, 1V. OLIGOLOCHUS 1». gen. The single species referred to this genus, greatly resembles Micro- cholus striatus in its general features of form, sculpture and vesti- ture, although much smaller in point of size, and would have been referred to Microcholus were it not for the distinctly different struc- ture of the mandibles, which are not large and prominent as in that genus, but very small, thick, strongly arcuate, notched at apex and broadly decussate when closed. The principal generic characters have been given in the table, and those of minor importance are referred to in the description of the single species given below. Oligolochus does not resemble Zygo- baris either in habitus or structure. 1 Oligolochus convexus Lec.—Proc. Am. Phil. Soc., XV, p. 422 (Zygobaris ?). Oval, moderately and evenly convex, polished, black, the legs rufous ; vestiture very sparse and uneven, white, consisting of large scattered scales towards the sides of the pronotum and on the median line before the scutellum, also on the elytra toward the base of the third and fifth intervals and a few widely scattered on the disk toward the sides, the latter smaller and narrower; on the under surface sparse but more evident on the sternal parapleure ; all other punctures of the upper surface bearing extremely minute sete. Beak moderately slender, evenly, not very strongly arcuate, coarsely, sparsely, unevenly punctate at the sides, as long as the prothorax, feebly thickened toward base and slightly flattened toward apex, the basal impression extremely feeble; antenne inserted a little beyond the middle, the scape almost attaining the eye, the first funicular joint longer than the next three, the second small, slightly longer than the third; club moderate, abrupt, oval, densely pubes- cent, as long as the preceding four joints, with the basal joint one- half of the whole. Prothorax one-third wider than long, the sides very feebly convergent and distinctly arcuate from the base to the well-marked subapical constriction, the apex not tubulate, three- fifths as wide as the base, the median lobe of the latter small and feeble ; impunctate line entire ; punctures coarse, not dense. Scutel- lum very small, quadrate, impressed behind, glabrous. EHlytra but slightly longer than wide, a little wider than the prothorax and three-fourths longer, hemi-elliptical, the apex narrowly subtruncate ; font Coleopterological Notices, IV. 649 humeri rather prominent; striz rather coarse, deep, abrupt, one-half to two times wider than the grooves, each with an uneven single series of small, not very close-set punctures, more confused on the third. Abdomen closely, rather coarsely punctate, the fifth segment not as long as the two preceding, the pygidium slightly exposed at tip in the male. Length 2.8 mm.; width 1.2 mm. Florida (Enterprise). Cab. LeConte. Represented by the unique male type. ‘The prosternum is flat, the subapical constriction fine, even and continuous entirely across the surface and not obsolete at the middle as stated by LeConte; the surface between the constric- tion and the apex being rather strongly reflexed over the basal part of the head, the author quoted quite pardonably mistook the groove for the apical margin. The anterior coxe are separated by dis- tinctly less than one-half of their own width. The legs are more slender than in Microcholus striatus, but the tarsal claws are very nearly similar, thick and approximate, though divergent and free at base. IDIOSTETHUS 1. gen. This genus, though related to Stethobaris, is conspicuously dis- tinct in antennal and pectoral structure, as well as in the general “nature of the sculpture and vestiture. The antenne have the second funicular joint elongate when compared with that of Stetho- baris, and the club is generally smaller than in that genus; the club _ varies, however, quite remarkably in size and structure. ‘The prosternum is noticeably tumid, especially before the coxe, reminding us in this respect of Orthoris, and the narrow, deep but not abruptly defined median canaliculation is formed in much the same manner, as a depression between the ante-coxal prominences. The coxe are much more approximate than in Stethobaris, never being separated by more, and generally by less, than one-third of their own width. The pronotal sculpture is always in greater or less part longitudinally rugulose, and the vestiture consists of small sparse slender and recumbent sete and squamules, the latter, in one of the species, widely dispersed over the elytra; they are generally, but not always, more distinct toward the sides of the body beneath, occasionally becoming conspicuously dense. In the short tubulate prothorax, structure of the beak, mandibles and transverse frontal impression, scutellum, legs and tarsi, Idio- stethus closely resembles Stethobaris, but the body is more elongate- 650 Coleopterological Notices, IV. oval, with less prominent and especially less post-basal humeri, and the small, slender tarsal claws are more widely divergent. The four representatives here recognized may be easily identified from the following characters, the species being more isolated among themselves than in Stethobaris :— Elytra without dispersed squamules, the antennal scape more abruptly clavate. Antenne with the first funicular joint not longer than the next three to- gether ; club smaller, with its basal joint constituting about one-half of the mass; vestiture not dense at the sides beneath. Sculpture coarse, the pronotum with a narrow, impunctate and generally subcarinate line; interstitial punctures of the elytra coarse and deep; LAYSELr SPCCIOS. wanes ons ccdansjacsiaen sanece ssnieds naan 1 tubulatus Sculpture finer, tie. Wonbece very aise mnecre ane and without median line ; interstitial punctures Ten rather indefinite and feeble ; much smaller Species. ......... 0. ceeeee stcsteccsssseeeeeeea SUDCATVUS Antenne with the first raniculne joint as wee as the Bee ees club larger, elongate, nearly as long as the preceding six joints ees. and with its basal joint constituting but slightly more than one-third of the mass ; vesti- ture extremely dense at the sides of the body beneath...3 ellipsoideus Elytra with widely dispersed, longer, whiter but slender squamules ; antennal scape gradually clavate... ......csccccceccsecsccecceccerccsssssssccrene4t GISPErSUS 1 Idiostethus tubulatus Say—Cure., p. 20; Ed. Lec., I, p. 285 (Camptorhinus—Say, Stethobaris—Lec.). Oval, rather robust, moderately convex, black, the antenne, tibize and tarsi piceous; integuments polished, the vestiture very sparse, consisting of short, slender, subrecumbent sete, generally more evident toward the sides of the prothorax, and in a single line along each elytral interval. Beak slender, strongly arcuate, about one-half longer than the prothorax, rather densely, strongly punc- tate; antenne inserted a little beyond the middle, with the scape abruptly clavate, the second funicular joint not quite as long as the next two, the club moderate, elongate-oval, rather abrupt, nearly as long as the five preceding joints combined, and with the basal joint constituting almost one-half the mass. Prothorax nearly three- fourths wider than long, the sides rather strongly convergent and straight to apical third, then broadly rounded and convergent to the strongly constricted and tubulate apex; punctures coarse, deep, rather dense, more or less longitudinally confluent, and with a nar- row subcarinate impunctate line. Scutellum small, slightly wider than long, broadly emarginate at apex. Elytra abruptly much wider than the prothorax and fully two and one-half times as long, i- Coleopterological Notices, IV. 651 hemi-elliptical in outline, the striz coarse, deep, remotely and dis- tinetly punctate, but not at all crenulate, the intervals rather nar- row, flat, uniseriately and more or less strongly punctate. Pro- sternum broadly, strongly impressed, the impression short, disap- pearing before the coxe, the edges not abruptly defined; anterior coxe rather large, very narrowly separated. Length 3.0-4.0 mm.; width 1.6—2.0 mm. New York, Pennsylvania, Indiana, Illinois and Florida, the latter locality perhaps doubtful. Nine specimens, exhibiting con- siderable variation, chiefly in regard to the magnitude and density of the punctures. In some specimens the thoracic sculpture is longitudinally and strongly rugulose. 2 Idiostethus subcalwus Lec.—Proc. Am. Phil. Soc., XVII, p. 622 (Zy gobaris). Oval, strongly convex, shining, black throughout, the antenne, tibia and tarsi more or less piceous; pubescence very short and sparse, slightly denser and nearly uniformly distributed beneath, the elytra without dispersed squamules. Head finely, distinctly punctate, the beak very densely, rugulosely so, substriate along the: fine polished median subcarinate line, evenly, not very strongly arcuate, slender and about as long as the head and prothorax, the antennee inserted at the middle, the first funicular joint robust and searcely longer than the next two, second nearly as long as the third and fourth, slender, almost three-fourths as long as the first, outer joints stouter; club small, robust, scarcely longer than the preceding four joints together, with its basal joint constituting one- half of the mass. Prothorax rather small, conical, tubulate at apex, one-half wider than long, convex and finely, very densely, longitu- dinally and confusedly rugulose throughout, without median line. Scutellum small, quadrate, scarcely impressed. Elytra large, ab- ruptly much wider than the prothorax, about two and one-half times longer than the latter, hemi-elliptical, the bumeral callus small but unusually prominent; disk with fine but deep and abrupt stric, the intervals somewhat feebly rugulose, nearly three times as wide as the grooves, each with a more or less even series of somewhat dis- tant, moderately small, very feeble punctures, each bearing a short subrecumbent seta, often directed transversely or obliquely. Abdo- men finely, extremely densely punctate and dull. Prosternum tumid, declivous anteriorly, narrowly, strongly impressed along ~ - Annaus N. Y. Acap. Scr., VI, Nov. 1892.—43 652 Coleopterological Notices, IV. the middle, separating the coxe by scarcely more than one-fourth of their own width. Length 1.8-2.6 mm.; width 0.8-1.25 mm. Pennsylvania, Indiana, Kentucky and Missouri. A sufficiently common species, the smallest of the genus, rather more convex than usual and with more prominent humeri, but not differing from the others in generic structure. The claws are perfectly free, slender and divergent. 3 Idiostethus ellipsoideus n. sp.—Rather narrow, elliptical, con- vex, Shining, black throughout, the tibiw and tarsi piceous ; vestiture whitish, consisting above of very small recumbent sete, slightly wider and closer toward the sides of the pronotum and disposed in a single uneven line on each interval, without larger dispersed squamules on the elytra, but with two or three at each side of the middle of the pronotum near lateral fourth ; under surface sparsely squamulose, the prosternum and mes-episterna more densely so, the met-episterna and sides of the abdomen thence to the apex covered with an extremely dense crust of small overlapping feathery scales. Head finely but deeply and distinctly, not very sparsely punctate, the beak densely, rugulosely so and sparsely squamulose at the sides, with a feebly impressed line of punctures on each side of the narrow subeariniform impunctate line, slender, strongly arcuate, a little longer than the head and prothorax ; antenne inserted beyond the middle, the scape rather long, first joint of the funicle as long as the next four, second nearly one-half as long as the first and almost as long as the next two; club rather large, elongate-oval, densely pubescent, nearly as long as the preceding six joints combined, with the basal joint constituting but slightly more than one-third of the mass. Prothorax two-thirds wider than long, the sides feebly convergent and nearly straight to apical fourth, then strongly rounded to the apical constriction ; apex trun- cate, tubulate, one-half as wide as the base, the latter transverse, with the median lobe small but distinct; disk not very coarsely, deeply, unevenly sculptured, longitudinally rngulose toward the narrow abbreviated and sub- carinate impunctate line. Scutellum minute, quadrate, impressed. Llytra quite distinctly wider than the prothorax, and two and three-fourths times as long, nearly one-half longer than wide, hemi-elliptical in outline, the sides becoming parallel and nearly straight in basal half, the humeri small but slightly prominent; disk with not very coarse but deep, abrupt strie, the intervals flat, about twice as wide as the grooves, each with a single wide, feebly impressed line of coarse but feeble, close-set, somewhat confused and uneven punctures. Abdomen very densely punctate. Prosternum nearly nor- mal, tumid and strongly, anteriorly declivous. Length 2.6-3.5 mm.; width 1.1-1.7 mm. Towa; Missouri. A distinct species varying. considerably in size. Four specimens. 4 Idiostethus dispersus n. sp.—Oval, rather stout, moderately con-. vex, black; legs rufo-piceous; integuments polished, the vestiture sparse and Coleopterological Notices, IV. 653 uneven, consisting, on the pronotum, of extremely minute sete which become long slender recumbent whitish squamules in lateral fifth, and in the middle before the scutellum, also with a few widely dispersed over the intermediate regions; on the elytra there is a single series of very small setze on each interval, with long slender squamules very widely dispersed over the entire surface; on the under surface the squamules are denser and somewhat brist- ling on the prosternum especially behind, and the smaller white recumbent scales are sparse throughout, but denser on the met-episterna and toward the sides of the last four ventral segments. Head finely, rather sparsely punc- tate, the beak moderately stout, densely punctate and sparsely squamulose along the sides, evenly, distinctly arcuate and equal in length to the protho- rax in the male; antenne inserted near apical two-fifths, the scape rather long and strongly, gradually clavate. Prothorax three-fourths wider than long, the sides feebly but distinctly convergent and nearly straight to apical fourth, then strongly rounded to the apical constriction, the apex briefly tubulate, rather more than one-half as wide as the base, the latter broadly, feebly arcuate, the median Jobe very small and feeble; disk very unevenly, moderately coarsely and deeply sculptured, the impunctate line narrow but entire, well defined and somewhat elevated; sculpture longitudinally rugu- lose toward the middle, closely punctate toward the sides, and more finely and very sparsely punctate at lateral fourth toward base. Scutellum minute, quadrate, feebly impressed. /ytra hemi-elliptical, fully one-fifth wider than the prothorax and much more than twice as long; sides feebly sinuate toward apex, the latter narrowly rounded; humeri not distinctly prominent; disk with extremely coarse, deep, abrupt and even striz, the intervals flat, equal, but slightly wider than the grooves, each with a single feebly impressed line of somewhat coarse close-set rounded punctures. Prosternum decidedly tumid with reference to the mesosternum, narrowly, strongly impressed along the middle, separating the coxe by barely one-third of their width, and, behind them, declivous to the surface of the mesosternum, extending somewhat over the latter. Abdomen coarsely, very deeply, rather closely punctured near the base. Length 3.3 mm.; width 1.75 mm. Alabama. The single specimen is a male, the abdomen having a rather small but deep subbasal impression. This species is not at all closely allied to ¢ubulatus, and has the anterior coxe slightly less narrowly separated. STETHOBARIS. LeConte—Proc, Am. Phil. Soc., XV, p. 302. The essential characters distinguishing this genus from others, more closely allied to it in the present section of the tribe, are the large antennal club, nearly as long as the entire funicle and resem- bling“that of Rhoptobaris, the small, slender, free but feebly diver- 654 Coleopterological Notices, IV. gent claws, deeply, abruptly and broadly excavated prosternum, not very widely separating the coxe, peculiar oval, thick and con- vex form of the body, with prominent humeri situated at quite a noticeable distance behind the base, and the polished black integu- ments, which are practically entirely glabrous, each puncture bear- ing an excessively minute seta, only visible under considerable amplification. Stethobaris is one of the genera connecting the more normal forms of the tribe with the aberrant Oomorphidius and Hisonyx. The beak is separated from the head by a feeble but distinctly marked transverse impression and is strongly arcuate, moderate in length and thickness, and nearly always noticeably tapering from base to apex, with the antennal scrobes strongly oblique and broadly confluent beneath; the mandibles are short, arcuate and broadly decussate. The tibie are deeply and longitudinally sculptured. The species of Stethobaris are moderately numerous, and, with one exception, more than usually homogeneous in external appear- ance. It is possible, however, that they may be recognized by the characters given in the following table :— Integuments more or less finely and sparsely punctate, the interstitial punc- tures of the elytra very minute and sparse. Sides of the prothorax broadly arcuate, becoming parallel in basal half; pronotal punctures minute and very sparse, becoming larger but not at all confluent at the sides beneath..........s.cscccceseeeeeeeeeel COFPUlenta Sides convergent from the basal angtes, the prothorax smaller and more conical, less sparsely and more conspicuously punctured. Prothorax with a distinct but narrow subentire impunctate line; punc- tures of the elytra confused, at least on the wider intervals; sides of the prothorax beneath obliquely and finely rugose; last ventral segment in both sexes distinctly shorter than the two preceding together. Elytral grooves very coarse, strongly, remotely punctured, the edges feebly but distinctly serrato-crenulate; form stouter, the prothorax a little more transverse.. saeinie sae tnomianternae couteeste .2 incompta Elytral grooves less coarse, eed more ‘finely bere at the bottom, the edges never serrato-crenulate, except occasionally very feebly so Meat the Ase. so. a.ncebles eee drama stoenkn clea tera actyanlesbieastaalasielen: ona oD Nite ante Prothorax more Aiea aid more eee punctate, never wien a clearly defined entire impunctate line, the punctures beneath at the sides dis- tinct, not forming elongate ruge; elytral strie very coarse and remotely but conspicuously punctured, the extremely minute interstitial pune- tures forming a single line on each...........000+ 4 congermana Integuments coarsely, densely punctured, the eee of the elytra forming a single deep coarse and confluent line on each interval........5 egregia Coleopterological Notices, IV. 655 1 Stethobaris corpulenta Lec.—Proc. Am. Phil. Soc., XV, p. 420. Robust, oval, convex, glabrous, strongly shining and _ black throughout, the antenne with the first funicular joint nearly as long as the next four, second to seventh equal in length, the former not as long as wide; club large, evenly elliptical, densely pubes- cent, equal in length to the six preceding joints combined and equally trisected by the first and second sutures. The prothorax is short, four-fifths wider than long, the sides very strongly, evenly arcuate, convergent anteriorly to the strong apical tubulation, and becoming gradually parallel in about basal half, the apex not quite one-half as wide as the base, the latter broadly, feebly arcuate, the median lobe small but prominent, truncate ; disk sparsely, uniformly, very finely and rather feebly punctate, coarsely but not confluently so beneath, the impunctate line narrow, distinct and subentire. Scutellum a little longer than wide, impressed toward apex, quad- rangular. Elytra, at a short distance behind the apex, fully one- fifth wider than the prothorax, a little more than twice as long as the latter, the humeri obtusely prominent; outline hemi-elliptical ; strie coarse, deep, with the margins remotely and finely serrato- crenulate toward base;-intervals from two to three times as wide as the grooves, minutely, feebly, sparsely and confusedly punctate. Length 3.3 mm.; width 1.8 mm. Florida (Tampa). Cab. LeConte. I have seen only the unique female type in the Museum of Comparative Zoology at Harvard University. 2 Stethobaris incompta n. sp.—Oval, strongly convex, somewhat robust, black, glabrous and strongly shining throughout. Head finely but strongly, sparsely punctate, the beak densely punctured at the sides, evenly, strongly arcuate, moderately slender, distinctly tapering from base to apex and equal in length to the head and prothorax, the antenne inserted at basal two-fifths, nearly as in corpulenta, but with the first funicular joint a little shorter and the club distinctly longer, equalling the entire funicle excepting one-half of the basal joint, with its first joint a little longer than the second. Prothorax about four-fifths wider than long, the sides feebly but noticeably convergent and nearly straight to the middle, then gradually, broadly rounded, becoming strongly convergent to the apical tubule, which is distinctly less than one-half as wide as the very broadly, feebly arcuate base; median lobe of the latter small but distinct, truncate; disk rather finely but deeply, not very densely punctate, with a narrow impunctate median line, the punctures coarser, and forming long oblique ruge beneath. Scutellum minute, quadrate, scarcely impressed. lytra, at a little behind the base, barely one-fifth wider than the prothorax, nearly two and one-half times longer than the latter ; 656 Coleopterological Notices, IV. humeri obtusely prominent ; outline behind them hemi-elliptical ; strie rather coarse, deep, remotely, distinctly serrato-crenulate, the intervals differing greatly in width, the third twice as wide as the grooves, the fourth but slightly wider than the latter, flat, minutely but deeply and distinctly punctate, the punctures confused, sparse but becoming closer toward base, forming nearly even single lines on the narrow intervals. Length 3.1 mm.; width 1.65 mm. Florida. This species differs from corpulenta in its less obese form and larger antennal club, smaller and quite differently shaped, slightly more conical, much more coarsely, deeply and less sparsely punctate prothorax, with the punctures not isolated beneath at the sides, but forming long ruge; also in its flatter, still more unequal and less polished elytral intervals, with the punctures less minute, deeper and becoming denser toward base; and finally, and quite remark- ably, in the form of the mes-epimera, which in corpulenta are gradually pointed upward, but much more truncate and rounded in incompta. The present species is closely allied to ovata, and agrees with that species in all the characters given above to distin- guish it from corpulenta. It is represented by a single female. 3 Stethobaris ovata Lec.—Proc. Acad. Nat. Sci. Phila., 1868, p. 363 (Baridius). Ovate, polished, black and glabrous, rather strongly convex. Beak moderately slender, strongly arcuate, about as long as the head and prothorax, the antenne inserted just behind the middle, the first funicular joint robust, about as long as the next three, second quadrate, just visibly longer than the third, two to seven small, the club very large, abrupt, elongate-oval, nearly as long as the entire funicle, densely pubescent throughout and with the basal joint composing but slightly more than one-third of the mass, the second long. Prothorax about two-thirds wider than long, the sides feebly convergent and nearly straight to slightly beyond the middle, then broadly rounded and gradually convergent to the strong constriction ; apex tubulate; base broadly arcuate, the lobe distinct, truncate; disk rather finely, sparsely and unevenly punctate, the punctures larger along the basal-margin; impunctate line narrow, entire. Scutellum small, longer than wide, the apex emarginate and the surface impressed posteriorly. Elytra, at a little behind the apex, quite distinctly wider than the prothorax, the humeri large, tumid; outline hemi-elliptical; striz moderately wide, deep, re- motely punctate, abrupt, not at all crenulate, the intervals wide, Coleopterological Notices, IV. 657 flat, generally rather -more than twice as wide as the grooves, minutely sparsely and confusedly punctate. Prosternum rather widely, very deeply and abruptly excavated anteriorly, the anterior coxe small and separated by two-thirds of their own width. Length 2.5-2.8 mm.; width 1.3-1.5 mm. Massachusetts to Virginia; five specimens, exhibiting compara- tively little variation. 4 Stethobaris congermana n. sp.—Suboval, moderately robust, rather strongly convex, black, polished and glabrous, the legs slightly pice- ous. Head finely, sparsely but distinctly punctate, the transverse impression feeble but distinct, the beak somewhat stout, evenly, moderately arcuate, as long as the prothorax in the male, about one-fourth longer in the female, densely, deeply punctured at the sides, the antenne inserted at the middle in the female or just beyond in the male, nearly as in ovata, the club a little shorter than the entire funicle. Prothorax subconical, two-thirds wider than long, the sides rapidly convergent and very feebly arcuate from the base to the strong apical constriction, the apex tubulate and one-half as wide as the base, the latter transverse, bisinuate and somewhat trilobed, the median lobe stronger than the lateral, rounded; disk rather finely, deeply, somewhat closely punctured, the median impunctate line subobsolete. Scutellum small, quadrate, truncate behind and with a deep lunate impression in apical half. Elytra, just behind the basal margin, one-fifth wider than the prothorax, two and one-half times longer than the latter and distinctly longer than wide, the humeri rather prominent; sides thence distinctly convergent and broadly arcuate to the apex, which is rather suddenly and broadly subtruncate; disk coarsely, very deeply striate, the grooves conspicuously, remotely punctate, feebly crenulate toward base, the intervals flat, one-half wider than the grooves in the male, nearly twice as wide as the latter in the female, each with a single series of extremely minute feeble punctures. Prosternum broadly, extremely deeply and abruptly excavated anteriorly, the excavation polished and impunctate, short, rapidly narrowed behind and separating the coxe by not quite two-thirds of their own width. Length 2.8-3.0 mm. ; width 1.5-1.8 mm, Massachusetts; New York; Missouri. Hasily distinguishable from ovata by its very coarse, strongly punctured and subcrenulate elytral strie, with the intervals uniseri- ately punctate throughout, by its less widely separated anterior cox, less transverse, more rapidly conical and more coarsely, closely and evenly punctate pronotum, without a distinctly marked impunc- tate line, and by several other characters as stated in the table. 5 Stethobaris egregia n. sp.—Oblong-oval, convex, subglabrous, shining but deeply, densely sculptured, black, the elytra somewhat piceous. Head minutely, sparsely but distinctly punctate, the beak rather coarsely, densely so, with the punctures more or less longitudinally coalescent, strongly, 658 ‘Coleopterological Notices, IV. evenly arcuate, as long as the head and prothorax, the antennz inserted be- hind the middle, the club very large, more robust than usual, as long as the entire funicle excepting one-half of the basal joint, the latter as long as the next three, second not longer than the third. Prothorar less transverse than usual, one-half wider than long, the sides feebly convergent and slightly arcuate to apical third, then rounded to the tubulate apex, which is one-half -as wide as the base, the latter transverse, arcuate at the sides, the median lobe distinct; disk with a small, ill-defined elongate impunctate spot behind the middle, the punctures coarse, deep, rounded, dense. Scutellum quadrate, small, strongly impressed. Flutra somewhat abruptly nearly one-fourth wider than the prothorax, more than twice as long as the latter and distinctly longer than wide, the humeri moderately prominent, smaller and more basal than usual ; sides behind them only moderately convergent, the apex rather broadly and abruptly rounded ; disk with coarse deep very abrupt and non-crenulate grooves, the intervals flat, subequal, but slightly wider than the grooves, each with a single series of coarse deep confluent punctures. Length 2.8-3.1 mm. ; width 1.41.65 mm. Arizona. , In one of the specimens before me the pronotal punctures are very dense, almost in mutual contact, but in the other are separated by one-half of their own diameters, displaying, as in many other species, marked variation in the coarseness and density of sculpture. ZAGLYPTUS. LeConte—Proc. Am. Phil. Soc., XV, p. 236. In this remarkably distinct genus, the body is minute and sparsely covered with long stiff erect bristles, the beak moderate in length, evenly, feebly arcuate, with the antenne inserted just beyond the middle, the prosternum broadly, rather feebly impressed along the middle, separating the coxe by much less than their own width, and the tarsi very slender, the third joint elongate, subcylindrical or feebly obconical and not in the least dilated. Zaglyptus was in- advertently placed in the Cryptorhyncbhini by its author. We have but two species, one of which I do not have before me at present; they are distinguished by LeConte as follows :— Elytra with coarsely punctured shallow striew, the intervals rather wide. 1 striatus Elytra deeply sulcate, the grooves punctured; interspaces narrow; color Garkceiies wns svenee sniisssiualve tiie ose canis on de.cise sive etadlene aiatidnd anblbeine canseee ci Rm Moen EEE These species appear to be rare, or at least ‘seldom taken; they are probably of peculiar habits. . ; . | 7 ‘Coleopterological Notices, IV. 659 | 1 Zaglyptus striatus Lec.—Proc. Am. Phil. Soc., XV, p. 237. Oval, convex, dark red-brown, polished, the upper surface with a few fulvous prostrate hairs in addition to the long stiff sete, more especially noticeable on the prothorax and toward the base of the beak. Beak quite distinctly longer than the head and prothorax, rather strongly, longitudinally suleate, slightly punctate toward base; antennee rather slender, the basal joint of the funicle robust, nearly as long as the next three, two to seven short, coarctate, sub- equal in length and gradually slightly thicker, club moderate. Pro- thorax conical, one-half wider than long, the sides feebly inflated and distinctly arcuate at the middle; apex one-half as wide as the base; punctures distinct but not very dense. Scutellum small. Elytra at base abruptly barely one-fourth wider than the prothorax, about twice as long, not longer than wide; sides broadly arcuate, becoming parallel near the base; disk with just visibly impressed series of rather coarse, deep, not very close-set punctures, the inter- vals nearly flat and fully twice as wide as the strial punctures: Length 1.4 mm.; width 0.8 mm. Pennsylvania and District of Columbia. The head is impunctate but minutely, densely granulato-reticulate ; it is not separated from the beak by a transverse impression. This is the most minute baride known within our faunal limits. 2 Zaglyptus sulcatus Lec.—Proc. Am. Phil. SOcs SVapeeze f. Represented by the unique type almost similar in size to striatus. Alabama (Mobile). OOMORPHIDIUS n. gen. — It is necessary to separate Microcholus erasus and levicollis of LeConte as a very distinctly defined genus, forming a passage from Stethobaris to Hisonyx, and differing radically from Microcholus in its strongly convex body, tubulate prothorax, peculiarly modified elytral striation, impressed prosternum and stout, strongly decus- sate mandibles. In many of its most striking characters it resem- bles Hisonyx, and in fact is so evidently allied to that eenus as to prove the feeble value of ungual structure in the present section of Barini; this is shown also below in the case of Barinus and Bari- lepton, which are related in much the same way as Oomorphidius and Hisonyx. ) 660 Coleopterological Notices, IV. Oomorphidius is distinguished by an oval, extremely convex and subglabrous body, rather long, moderately stout, arcuate beak, with broadly arcuate and somewhat advanced epistomal lobe, rather robust legs, with subarcuate femora, dilated third tarsal joint and very small, slender, free and divergent claws. The scutellum is minute. The two species differ subgenerically as follows :— Subgenus I. Apical constriction of the prothorax not extending across the dorsal surface ; prosternum narrowly and feebly sulcate, the sulcus squamose along its edges ; anterior coxe apparently separated by less than one-third of their own width; elytra without dispersed squamules; scutellum nearly as wide as long; size larger, the elytra nearly as in Hisonyx and wider than the PLOCWOPAK wed cis ciceu ves wate oils ouernce'sesibat uerena/cuncestinus bie adetuchaids caiacre calla gman Subgenus II. Apical constriction in the form of a deep abrupt groove, extending without change in character entirely across the dorsal surface; prosternum very broadly, moderately strongly subsulcate, the sides of the impression not well defined and completely glabrous; cox separated by one-half of their own width ; elytra with a few widely dispersed squamules toward the sides and apex; scutellum elongate, triangular ; size small, the prothorax much shorter and equal in width to the basal parts of the elytra. 2 lavicollis I. 1 Oomorphidius erasus Lec.—Trans. Am. Ent. Soc., VIII, p. 21 (Microcholus). Oval, very strongly convex, black, the legs slightly piceous, the antenne rufescent; integuments smooth, almost completely gla- brous and very highly polished, the elytra slightly alutaceous. Head minutely, sparsely punctulate, the transverse impression broad and feeble; beak rather long and somewhat stout, distinctly, evenly arcuate, sparsely, deeply punctate and fully as long as the head and prothorax ; antenne inserted just behind the middle, the scape long, first funicular joint as long as the next three, the second one-half as long as the first and fully as long as the third and fourth com- bined; club robust, moderate in size, abrupt, densely pubescent. Prothorax nearly one-half wider than long, the sides rather strongly convergent and nearly straight to apical third, then gradually rounded and convergent to the strongly tubulate apex; base broadly, evenly arcuate throughout the width, the lobe obsolete ; disk sparsely, extremely minutely and feebly punctate throughout Coleopterological Notices, IV. 661 and glabrous. Scvtellum very minute, triangular. Elytra nearly as in Hisonyx, broadest just before basal third, where the sides are broadly subangulate, one-fourth wider than the prothorax and a little more than twice as long, the sides strongly convergent behind and feebly arcuate, the apex narrowly subtruncate; disk with but feeble traces of fine impressed striw, which are abruptly, deeply foveate just behind the basal margin, the intervals very minutely obsoletely sparsely and confusedly punctulate, entirely glabrous ex- cepting a few long recumbent yellowish squamules at the base of the second to fourth intervals. Prosternum narrowly and feebly suleate along the middle, the sides of the sulcus with recumbent yellowish squamules, the cox separated by less than one-third of their own width. Length 4.3 mm.; width 2.3 mm. Kansas (Topeka). Cab. LeConte. Still represented by the unique type. el: 2 Oomorphidius lzevicollis Lec.—Proc. Am. Phil. Soc., XV, p. 304 (Microcholus). Oval, very strongly convex, rapidly narrowed behind, dark rufo- piceous, the elytra blackish and the legs paler; body almost gla- brous, rather alutaceous in lustre and minutely reticulate. Head almost impunctate, the impression very feeble ; beak finely, sparsely punctate, moderately long and slender, strongly, evenly arcuate and fully as long as the head and prothorax, the antenne inserted at apical two-fifths, slender, the scape rather long, the first funicular joint robust, clavate, not as long as the next three, the second more slender, two-thirds as long as the first and fully as long as the next two combined, club not large, robust. Prothorax very transverse, twice as wide as long, the sides broadly rounded and gradually more convergent from the base to the apical constriction, which is in the form of a narrow deep groove extending entirely across the dorsal surface, the apex strongly tubulate; base broadly, feebly arcuate ; disk excessively. minutely feebly and sparsely punctured. Scutellum very small, elongate, triangular. Elytra a little longer than wide, two and one-half times as long as the prothorax and equal in width to the latter, with the sides straight and parallel to basal fourth, then, to the narrowly rounded apex, strongly conical with the sides nearly straight; disk with very fine, nearly obsolete strie, each terminating at some distance behind the basal margin in a mode- 662 ‘Coleopterological Notices, IV. rately deep dilated fovea, the intervals not perceptibly punctulate, the surface giabrous, excepting three or four long slender white squamules widely dispersed laterally, and a few also at the base of the second and third intervals. Prosternum glabrous throughout, the coxe more widely separated than in erasus. Length 2.2 mm. ; width 1.1 mm. Missouri (St. Louis). Cab. LeConte. This remarkable species is still represented as far as I know by the unique type. EISONYX. LeConte—Trans. Am. Ent. Soc., VIII, p. 216. This is perhaps the most aberrant and specialized baride genus within our faunal limits. In general form it is totally unlike our other genera, but is satisfactorily connected in this respect by Oomor- phidius. The original diagnosis of LeConte will serve for its re- cognition, but is greatly misleading in several important points. The middle and hind tibiz are, for example, not in the least conical in outline, but are very thick and quite peculiar in structure, indi- cating perhaps a burrowing habit; they are strongly carinate ex- ternally near the base, then straight for a short distance, then feebly bent outward, becoming distinctly dilated and densely bristling with fulvous sete. The elytral striz are not by any means replaced by series of coarse punctures, as stated in the original descrip- tion, the striz being all but completely obsolete, but marked by series of exceedingly minute feeble and distant punctures, and ter- minating at base in larger deep fovez as in Oomorphidius; the large deep circular perforate and widely distant punctures referred to by the author, are unevenly spaced along the middle of the in- tervals. Hach of these large punctures bears a very small slender seta, but some of them, which are widely isolated and a little larger than the others, bear instead a single large white recumbent scale, The beak is extremely thick, short, feebly arcuate and scarcely three-fourths as long as the prothorax, bristling with coarse erect setee at the sides toward apex, and the antenne are inserted slightly beyond the middle, the scrobes being very oblique. Scutellum minute, rather deeply seated, feebly tumid and nude. | 1 Eisonyx crassipes Lec.—Trans. Am. Ent. Soc., VIII, p. 217. Rhomboidal, widest between basal third and fourth of the elytra, black, rather dull, finely alutaceous and smooth throughout, convex, — Coleopterological Notices, IV. 663 the vestiture extremely unevenly distributed, consisting of a cluster of elongate fulvous squamules among the deep coarse punctures occupying the lateral portions of the anterior thoracic constriction, also at the base before the scutellum and along the margin toward the sides, also with a few similar squamules near the base of the third and fifth elytral intervals; elsewhere on the upper surface, with the exception of the few widely scattered white scales of the elytra, the setw are very minute. Head almost impunctate, the beak sparsely but deeply so, separated from the head by a transversely arcuate shallow but sharply defined groove. Prothorax finely, fee- bly and very sparsely punctate, as long as wide, convex, the sides feebly convergent from the base nearly to the apex and straight; base strongly, anteriorly oblique from the scutellum to each basal angle, the median lobe nearly obsolete. Hlytra about one-half wider than the prothorax and nearly twice as long; sides about equally and strongly convergent anteriorly to the base of the pro- thorax, and posteriorly to the very narrow subtruncate and con- jointly arcuate apex, the sutural notch completely obsolete. Length 4.8 mm.; width 2.5 mm. Texas—Cab. LeConte. But two specimens are known, one of which is in the cabinet of Dr. Horn. ZYGOBARIS. LeConte—Proc. Am. Phil. Soc., XV, p. 317. A single widely isolated subtropical species, with coarsely punc- tured elytral strize and very long slender strongly arcuate beak, alone constitutes this genus as far as known. LeConte placed here, also, several other small and obscure forms; these, however, belong to widely diverse genera, and have been described under the preced- ing Oligolochus and Idiostethus, and Catapastus which follows. . Zygobaris may be distinguished easily by the structure of the favaal claws, which are moderate in length and completely connate, without trace of suture, through at least one-third of their length. The mandibles are small, thick, arcuate, notched at apex and strongly decussate. Prosternum flat, separating the coxe by about. their 3 own width, the subapical constriction feeble and only visible later-. ally, represented in the middle by a small, moderately deep, sub- transverse fovea, limited at each side by a small longitudinal ridge. Other generic characters are mentioned below :— 664 Coleopterological Notices, IV. 1 Zygobaris nitens Lec.—Proc. Am. Phil. Soc., XV, p. 318. Robust, rhomboidal, moderately convex, strongly shining, black, the legs slightly piceous; integuments subglabrous, the vestiture white, consisting of very minute and sparse setiform squamules, with large white scales remotely dispersed but more condensed at the base of the second elytral interval, more distinct but sparse beneath. Beak long and slender, evenly, strongly arcuate, slightly tumid at base with the constriction distinct, feebly compressed and densely punctured at the sides, especially behind the antenne, two- fifths as long as the body in the male and two-thirds in the female, smoother and less punctate in the latter sex; antenne inserted at basal two-fifths in the female or a little behind the middle in the male, the scape nearly attaining the eyes, the scrobes almost com- pletely inferior, basal joint of the funicle not quite as long as the next four, the second one-half longer than the third; club moderate, elongate-oval, densely pubescent, with the basal joint composing about one-third of the mass. Prothorax conical, one-half to two- thirds wider than long, the sides feebly, evenly arcuate; constric- tion rather strong; disk very coarsely, deeply, moderately closely punctate, without trace of impunctate line. Scutellum small, oblong, glabrous. Elytra at base much wider than the prothorax, rather more than twice as long as the latter, parabolic in outline, the humeral callus not laterally prominent; disk with very fine strie, which are widely and deeply impressed and coarsely, not closely punctate, the intervals convex, each with a single series of coarse deep remote punctures, about as large as those of the strize but more than twice as distant. Length 2.6-3.7 mm.; width 1.4-2.0 mm. Southern Florida. A distinct and easily recognizable species. 4 CATAPASTUS 1. gen. This genus contains some of the smallest centrinides thus far discovered, and is rather isolated. Its nearest relative is probably Zygobaris, but the divergence from even this form, which is itself a strongly specialized type, is very notable. The beak is short, stout, broad, flattened toward apex, very densely but finely punctate throughout, squamose and without trace of basal constriction. The antenne are inserted distinctly beyond the middle, which contrasts greatly with their position in Zygobaris, the scape nearly attaining the eye, the basal joint of the 2 Coleopterological Notices, IV. 665 funicle long and the remaining ones small, the club relatively rather large. The mandibles are small, stout, arcuate, notched at apex and broadly decussate. Scutellum small, densely squamose. Pro- sternum with a broad, moderately deep impression along the middle, which becomes gradually narrower, more profound and more ab- ruptly defined toward apex. Anterior coxe rather approximate, separated by scarcely one-half of their own width. ‘Tarsal claws small, perfectly connate through about basal third. The two species before me may be readily recognized as follows :— Form narrowly rhomboid-oval ; prothorax but slightly wider than long ; scat- tered white scales of the elytra long and narrow; legs black; antenne piceous, with the club abruptly pale rufo-testaceous.......1Comspersus Form rather broader, the prothorax much more transverse; scattered white scales larger, broader and much more conspicuous; legs and antenne pale rufo-testaceous throughout... .......0cseeceecer ces cvssescceceeeeed GIMUSUS 1 Catapastus comspersus Lec.—Proc. Am. Phil. Soc., XV, p. 318 (Zygobaris). Narrow, subrhomboidal, convex, black, the antenne piceous-black with the club rufous; vestiture dense, consisting of small narrow dark red-brown squamules, which are broader, denser and nearly _ white beneath, and with larger white scales remotely dispersed on the elytra and more or less dense toward the sides of the pronotum, the scutellum densely clothed with white scales. Beak thick, feebly flattened toward apex, evenly, rather strongly arcuate, as long as the prothorax in the male and scarcely longer in the female, densely punctate and squamose, the basal constriction obsolete; antenne inserted distinctly beyond the middle in both sexes, basal joint of the funicle about as long as the next four, second but slightly longer than the third; club rather large, oval, densely pubescent, with the basal joint constituting one-third.of the mass and not longer than the second. Prothorax fully one-third wider than long, conical, the sides arcuate at apical third, the constriction distinct; apex three- fifths as wide as the base; punctures somewhat coarse, very deep and dense, without impunctate line; basal lobe very small. Elytra distinctly wider than the prothorax and a little more than twice as long, narrowly parabolic in outline, the strie rather coarse, abrupt, normal ; intervals flat, about one-half wider than the grooves, finely but strongly, confusedly and rather rugosely punctate. Length 1.7-2.38 mm.; width 0.8-1.1 mm. | Illinois, Michigan and Iowa; numerous specimens. One example is labeled ‘‘ Florida,” but I think by mistake. 666 Coleopterological Notices, IV. 2 Catapastus diffusus n. sp.—Rhomboid-oval, rather stout, convex, black, the legs and antenne throughout pale rufo-testaceous: vestiture as in conspersus, the scattered white scales of the elytra larger and broader. Head finely, very densely punctate, the impression obsolete; beak and antenne nearly similar to those of conspersus. Prothorax one-half wider than long, conical, the sides feebly, evenly arcuate ; subapical constriction distinct ; apex truncate, a little more than one-half as wide as the base, the latter transverse, the median lobe small but rather prominent ; disk coarsely, very densely punctate, with traces of a fine impunctate line. Scutellum small, rounded, very densely clothed with white scales. lytra distinctly wider than, and obviously more than twice as long as, the prothorax, parabolic, the humeral callus rather prominent laterally ; disk not coarsely, deeply, abruptly striate, the intervals flat, twice as wide as the grooves, finely, closely, confusedly and subtrausversely punctato-rugose. Abdomen nearly flat, closely punctured and moderately densely squamulose, the middle of the third and fourth seg-- ments glabrous except along the apex; fifth segment rather longer than the two preceding. Length 2.2 mm.; width 1.15 mm. Florida (southern). This species is closely allied to conspersus, and resembles it in structure and vestiture, but differs in its slightly more robust form, pale legs and antenne, more transverse and more coarsely punctured prothorax, and in several other characters. It is described appa- rently from the female, but there is very little sexual disparity in this genus. BARINUS. Casey—Bull. Cal. Acad. Sci., Il, 1886, p. 255. In this genus the beak is as short, thick and arcuate as in Baris, although beyond this mere suggestion, there is nothing at all in common. As in Barilepton, to which Barinus is closely allied, the head is larger in proportion to the size. of the prothorax than in any of the other genera, and the tarsi have the second and third joints dilated, very broadly so in bivittatus, but Barinus can always be readily distinguished by the tarsal claws, which are two in number and completely connate through at least one-half of their length. | a asa | The antenne are inserted just beyond the middle of the beak, very near the median line of the flank, the scrobes rapidly oblique, the scape nearly attaining the eye, the club moderate and the basal joint of the funicle unusually long, although varying somewhat in length in the different species. The mandibles are small, stout, feebly arcuate externally, decussate and with a large internal noteh. To Coleopterological Notices, IV. 667 Prosternum more or less deeply and narrowly impressed or sulcate, the coxe large, prominent and narrowly separated. The met- episternum varies in width according to the species, and the abdo- men is convex, becoming strongly ascending toward apex, where it is generally retracted slightly above the plane of the sutural angles of the elytra. The scutellum is small, glabrous or nearly so and the body is always unevenly and more or less densely squamose. The species are moderately numerous; those known to me may be identified as follows :— Body glabrous above, with two wide, abruptly limited vittze of large pale densely placed scales, the outline evenly elongate-oval....1 bivittatus Body elongate-oval, unevenly squamose above, the scales forming shorter or longer lines on the elytral intervals or, when the latter are densely squamose throughout, with the intervals two, four and six in greater or less part paler, especially toward base. ‘Elytra not densely squamose throughout. Elytral punctures fine, the sixth interval with a broad dense line of scales, abruptly terminating at basal fourth ; white scales of the second inter- val not extending beyond apical fifth...................2 Cribricollis Elytral punctures coarse and dense, the sixth interval with the line of large white scales extending fully to the middle and thence nearly to apex, but with narrower, sparser and darker scales; second interval broadly clothed with large white scales from base to apex. 3 squamolineatus Elytra densely squamose throughont, the scales ochreous-brown in color, but white on the alternate intervals through portions of their extent and more especially toward base. Prothorax with the scales of the under surface large and dense throughout toward the sides ; pronotal punctures rather finer and moderately close. , 4 suffusus Prothorax with a large quasi-denuded area involving the lateral portions of the under surface toward base, on which the scales become very fine and sparse; pronotal punctures coarse and denser......... 5 difficilis ; Body unevenly squamose above, the scales of the elytra not at all lineate in arrangement, but more or less denuded, especially on the flanks and often also at the posterior callus. Body more broadly oval. Vestiture dense, the anterior coxe separated by about one-fourth of their POUT Wow cecionslecniewecociern cae coves tovcseseesesateacracscuaccscee +c MULESCEMS Vestiture sparse, the scales narrower; anterior coxe separated by nearly one-half of their Own Width..........ccceccsecssccssceceseeneeed CULTICOLLIS Body narrow and linear, almost as in the second division of Barilepton. Vestiture of the pronotum broadly and abruptly dense toward the sides, the median glabrous area occupying but slightly more than one-third Opting Cotal WAGtH ccc. so5eo0c0s w00 ce seecoceeeed ALDeSCeNnsS Annas N. Y. Acap. Scr., VI, Nov. 1892.—44 668 Coleopterological Notices, IV. Vestiture of the pronotum sparse and evenly distributed throughout, although slightly sparser in a feebly defined, oblique line at each side, extending from the middle at lateral fourth to the scutellar lobe, not at all condensed toward the Side@s........ccccccoscssssssvscseseceneeed LEMCALIS 1 Barinus bivittatus Lec.—Proc. Am. Phil. Soc., XVII, p. 431 (Bari- lepton). Elongate-oval, convex, polished, black with a faint violaceo- metallic lustre, the legs dark rufo-piceous; vestiture of the dorsal surface very minute except a broad vitta on each side, extending from the apical margin of the pronotum to the elytral apex, of large, broad, densely placed,. yellowish-white scales, the meso- and meta- sternal episterna and margins of the abdomen similarly clothed with _ denser scales. Head excavated beneath; front with a large feebly impressed fovea but without transverse constriction, the beak stout, cylindrical, scarcely compressed, evenly, moderately arcuate, three- fourths as long as the prothorax, polished, coarsely punctured toward base, the antenne inserted just beyond the middle, a little nearer the upper than the lower margin, the basal joint of the funicle very slender and as long as the entire remainder, the club small, elongate- oval, as long as the four preceding joints combined. Prothorax not quite as long as wide, feebly inflated at apical third, the sides thence straight to the base; subapical constriction strongly marked, the apex two-thirds as wide as the base, the latter transverse, the basal lobe obsolete ; disk rather coarsely but not very densely punctate, the impunctate line narrow, irregular and entire. Scutellum small, a little wider than long and rather deeply seated. Elytra equal in width to the prothorax and twice as long, the sides evenly, gradu- ally convergent from base to apex and very feebly arcuate, the apex narrowly but obtusely rounded; humeri not prominent; striz fine but deep and abrupt, the intervals wide, minutely, rather sparsely and confusedly punctate, the fourth very narrow toward base. Pro- sternum narrowly, moderately deeply sulcate along the middle, separating the coxe by only one-third of their own width. Tarsi very broad, the posterior as long as the tibiew, with the first joint small but wider than long, the second and third equal in width and both very strongly dilated, squamose above, densely pilose beneath, the third with a narrow median emargination extending to basal third; fourth joint very slender, extending only slightly beyond the lobes of the third, the claws small, parallel and completely con- oS Soman Coleopterological Notices, IV. 669 nate through fully one-half of their length. Length 5.3 mm.; width 1.8-2.0 mm. . Georgia (St. Catharine Island). This is the most conspicuous and one of the most interesting barides within our faunal limits, remarkable not only in ornamentation, but in its extremely dilated tarsi and very elongate basal joint of the antennal funicle. 2 Barimus cribricollis Lec.—Proc. Am. Phil. Soc., XV, p. 422 (Barilepton). Hlongate-oval, convex, polished, black, the legs slightly piceous ; vestiture very uneven, consisting of large white densely placed scales in a sublateral pronotal vitta, on the second elytral interval — except near the apex, where they are gradually replaced by small narrow dark brownish squamules, on the third for a short distance behind the middle, on the fourth near the base and from basal to apical fourth, and on the sixth in the broadest and most conspicu- ous line of all, abruptly confined to basal fourth of the length; on the under surface the white scales are dense and conspicuous in a small spot near the anterior coxe, on the inner half of the mes- episterna, throughout the met-episterna, and toward the sides of the abdomen, much more densely on the third and fourth seg- ments and becoming fine, browner and sparser toward the apical angles of the second segment, which is more reflexed posteriorly at the sides than the third or fourth. Beak extremely short, thick, arcuate, not more than two-thirds as long as the prothorax, strongly punctured toward base at the sides, the basal joint of the antennal funicle as long as the entire remainder and slightly longer than the club. Prothorax very nearly as long as wide; sides parallel and straight in basal two-thirds, then gradually rounded, feebly conver- gent and rather strongly constricted to the apex, the latter three- fourths as wide as the base; disk coarsely punctate, the punctures circular, deep, perforate and quite distinctly separated; impunctate line evident in basal two-thirds. Elytra distinctly wider than the prothorax and fully twice as long, narrowly, obtusely rounded at apex; strie moderately coarse; intervals flat and unequal, about twice as wide as the grooves, finely, not densely and more or less confusedly punctate. Prosternum deeply, longitudinally impressed, the coxe very prominent, almost conical, separated by less than one-third of their own width. Length 3.6 mm.; width 1.35 mm. Florida (Enterprise). Cab. LeConte. Represented by the unique 670 Coleopterological Notices, IV. type, which is in a perfect state of preservation. All of the punc- tures of the upper surface, except where densely covered with scales as described above, bear each a very small inconspicuous seta. 3 Barinus squamolineatus Cas.—Bull. Cal. Acad. Sci., Il, p. 256. Elongate-oval, convex, black, the legs red; elytra coarsely, very densely sculptured; upper surface in great part covered with large white closely placed scales, which are replaced toward the sides of the elytra by smaller browner squamules, becoming fine inconspic- uous setee toward the humeri, also very inconspicuous on the first interval except toward the scutellum, and in middle half of the pronotum, except along the median line; pronotum in entire lateral fourth and second elytral interval throughout clothed very densely with large scales. Length 3.1-3.7 mm.; width ].2-1.3 mm. Illinois; several specimens. This species is allied to cribricollis, but differs in its slightly longer, less robust and arcuate beak in the smaller punctures and much broader, denser lateral vitta of the pro- notum, in the very much coarser, deeper and denser punctures, and more conspicuous vestiture of the elytra, paler lees and in many other characters. In my original description, the sculpture of the elytral intervals is stated to be finely and feebly punctate ; this mistake arose from the fact that in the single type specimen, the dense scales in great part covered and concealed the punctures; in some denuded ex- amples before me, however, they are readily seen to be coarse and deep, and, in comparison with those of eribricollis, very large in- deed. The types of both eribricollis and squamolineatus are males. 4 Barinus suffusus n. sp.—Elongate-oval, convex, black, with the legs red, moderately shining but extremely densely covered throughout with large brownish scales, becoming broadly white toward base of the sixth inter- val, also feebly whiter on the second and fourth near the base and behind the middle, also broadly white in lateral fourth of the pronotum and toward the sides of the body beneath ; median half of the pronotum sparsely clothed with slender but distinct squamules, becoming broad dense scales on the median line toward base, the scutellum abruptly black and glabrous, small, triangu- lar, widest behind and lying in a broad shallow depression between the elytra. Head and beak glabrous but with an abruptly dense line of large scales border- ing the eye anteriorly, the former finely but strongly, not very sparsely punc- tate, the transverse constriction feeble but evident; beak thick, compressed, strongly arcuate and distinctly punctate toward base, straighter and feebly flattened toward apex, about four-fifths as long as the prothorax in the female ; Coleopterological Notices, IV. 671 antenne inserted a little beyond the middle, the basal joint of the funicle not quite as long as the next six, club as long as the preceding five joints, rather elongate, oval, densely pubescent, with the basal joint constituting less than one-half of the mass. /Prothorax perceptibly shorter than wide, the sides straight and parallel in basal two-thirds, then broadly rounded, feebly conver- gent and broadly constricted to the apex, which is three-fourths as wide as the base, the latter transverse, the median lobe very small, feeble; disk rather finely and somewhat closely punctate, the punctures very distinctly separated ; impunctate line feebly defined ; apical margin polished and impunctate for a short distance throughout the width. /ytra distinctly wider than the pro- thorax and a little more than twice as long, elongate, hemi-elliptical in out- line, the apex with a feeble sutural notch, the humeral callus long but not prominent; disk moderately striate, the intervals flat, confusedly, coarsely punctate when denuded. Prosternum deeply impressed along the middle, rather narrowly separating the coxe as usual. Fifth ventral segment with a small impressed and denuded median area, the last three segments rapidly ascending in the female type, convex, and, at the extreme apex, retracted above the plane of the elytral apices. Length 3.6 mm.; width 1.4 mm. . Texas. A single specimen, which appears to be a female, the abdomen being entirely devoid of median impression toward base. The _ species is allied to squamolineatus, but is easily distinguishable by the dense crust of scales, and the much finer denser punctures and conspicuous squamules of the pronotum. 5 Barinus difficilis n. sp.—Elongate-oval, convex, black, shining, the legs rufous ; vestiture dense, consisting of large close-set scales, pale brown in color but gradually white in basal half on the second and sixth intervals, and also on the fourth very near the base, also broadly white and dense at the sides of the pronotum and on the under surface toward the sides, but with a large subdenuded spot on the prothorax just before the mesosternal side- _pieces, which is sparsely clothed with long slender squamules; median parts of the pronotum rather sparsely clothed with very long, wider and narrower, brown scales, which are conspicuous. Head finely, sparsely punctate, gla- brous, the eyes margined anteriorly with an abrupt line of coarse scales ; im- pression feeble but distinct; beak glabrous, thick, strongly arcuate and densely punctate toward base, much shorter than the prothorax, the basal joint of the antennal funicle distinctly shorter than the remainder; club moderate. Prothorax not quite as long as wide, the sides parallel and nearly straight to apical third, then broadly rounded and moderately convergent to the apex, the constriction almost completely obsolete ; disk coarsely, deeply and closely punctate, the punctures not in actual contact; median impunc- tate area fusiform. Scutellum moderate, quadrate, tumid, not deep-set, gla- _prous but squamulose at the sides. lytra slightly wider than the prothorax and a little more than twice as long, elongate hemi-elliptical, the sides becom- ing parallel toward base and very feebly constricted at apical fourth ; humeri 672 Coleopterological Notices, IV. not prominent; disk rather finely striate, the intervals wide, flat, not coarsely but very densely, deeply, confusedly punctate. Abdomen clothed throughout with large dense scales, which are sparse in the subbasal indentation and to- ward the middle of the last three segments. Prosternum normal, rather nar- rowly separating the coxe. Length 3.25 mm,; width 1.25 mm. California (southern). This species is rather closely allied to suffusus, but differs in its much more sparsely punctate head, in its coarser, denser punctures, narrower lateral vitte, more uneven and more conspicuous vestiture of the median parts of the pronotum, and in the denuded area beneath, the latter being entirely wanting and clothed with large dense normal scales in suffusus. It also differs in having the met- episterna decidedly narrower, and the elytra covered with a dense crust of scales which entirely conceal even the striz, the latter being indicated by wide partings of the scales in suffusus. 6 Barinus lutescens Lec.—Trans. Am. Ent. Soc., VIII, p. 218 (Bari- lepton). Rather robust, oval, the upper surface only moderately convex, black, the legs piceous-black ; integuments shining, densely clothed with large ochreous scales, which are rather elongate, evenly dis- tributed on the elytra, where they become gradually semi-erect behind and denuded at the sides in more than basal half, also broadly dense at the sides of the pronotum, the median glabrous area oval in outline; under surface polished and with very minute remote setiform squamules, which are abruptly dense and broader on the met-episterna and at the sides of the abdomen behind. Beak thick, strongly arcuate and punctured at base, three-fourths as long as the prothorax, the transverse impression very broad; surface glabrous but with a few very small, scarcely visible squamules near the an- terior margin of the eye; basal joint of the antennal funicle as long as the next five ; club rather small, but slightly longer than the pre- ceding four joints combined. Prothorax fully one-third wider than long, the sides parallel and nearly straight in basal two-thirds, then broadly rounded, convergent and scarcely at all constricted to the apex, the latter scarcely more than one-half as wide as the hase; disk rather coarsely and sparsely punctate, the punctures becoming smaller and much denser anteriorly. Scutellum very small, tumid, quadrate, glabrous and polished. Elytra scarcely perceptibly wider than the prothorax and a little more than twice as long, parallel, parabolically rounded in apical two-fifths, the subapical sinuation Coleopterological Notices, IV. 673 very feeble and the sutural notch broad; disk rather finely: striate, the intervals rather finely, moderately densely punctured. Proster- num rather deeply but very narrowly sulcate, the coxe large, pro- minent, separated by scarcely more than one-fourth of their own width. Length 3.2 mm.; width 1.3 mm. Texas (Columbus). Cab. LeConte. The unique type is the only specimen which I have seen; it is a female. This species is allied to albescens, in spite of the great dissimilarity in form of the body; the arrangement of the vestiture beneath is almost identical, but lutescens does not possess the denuded subapical spot of the elytra, is much more coarsely punctate, and differs in so many characters that there cannot, I think, be the least doubt of its distinctness. 7 Barinus curticollis n. sp.—Rather narrowly oblong-oval, some- what convex, polished, black, the legs dark rufo-piceous ; vestiture yellowish, consisting, on the pronotum, of dense elongate-oval scales in lateral third, on the elytra of nearly similar scales almost uniformly but not very densely dis- tributed throughout, becoming finer and still sparser on the flanks, very sparse throughout beneath, except on the met-episterna, where they are much denser, also denser at the sides of the last three ventral segments. Head dull, finely, sparsely punctate, the impression distinct; beak short, thick, very strongly arcuate, not as long as the prothorax, coarsely but sparsely punctate, some- what squamulose above the eyes ; antenne slender, the basal joint of the funi- cle not quite as long as the remainder, club moderate. Prothorax short, two- fifths wider than long, the sides parallel and straight to apical third, then gradually rounded convergent and nearly straight to the apex, which is three- fifths as wide as the base, the latter transverse, the median lobe broad and feeble; disk coarsely, rather sparsely punctate, the punctures round, deep, perforate and isolated, with a narrow and irregular impunctate line. Scutel- lum small, oval, tumid and glabrous. Llytra slightly wider than the prothorax and nearly two and one-half times as long, elongate hemi-elliptical, obtusely rounded at apex, the humeri not laterally prominent ; disk deeply striate, the intervals flat, from two to three times as wide as the grooves, coarsely, con- fusedly but not very densely punctate. Abdomen finely, remotely punctate, the basal segment coarsely and much more closely so. Anterior coxe sepa- rated by about one-half of their own width. Length 2.7-3.0 mm.; width 1.01.2 mm. Missouri; Louisiana. _ The description is drawn from the male, the abdomen having a small deep elongate-oval impression near the base. This species is allied to lutescens, but differs in its shorter prothorax, narrower form, more slender, much sparser scales of the elytra and more widely separated anterior coxe. 674 Coleopterological Notices, IV. 8 Barinus albescens Lec.—Trans. Am. Ent. Soc., VIII, p. 218 (Bari- lepton). Elongate, subparallel, somewhat wider toward posterior third of the elytra, black, the legs red, convex, polished with a very faint violaceo-metallic lustre; vestiture pale ochreous-white of different shades, very dense but uneven in distribution, consisting of large elongate scales, abruptly dense in lateral third of the pronotum and on the elytra throughout, except along the flanks and in a discal spot near the apex, these denuded areas and the median parts of the pronotum having the squamules exceedingly minute, sparse, and setiform ; squamules of the sutural interval also finer and darker toward apex, and the entire vestiture in apical fourth erect and bristling, especially at the intersection of the third and ninth in- tervals, behind the feeble subapical callus; vestiture of the under surface very minute and sparse, but denser on the met-episterna and at the sides of the abdomen behind. Beak three-fourths as long as the prothorax, very thick and arcuate, punctured toward base, the constriction strong, the eye bordered anteriorly by a line of three or four subrecumbent scales; antenne ‘with the basal joint of the funicle as long as the next five, the club rather large, pale, nearly as long as the preceding six joints. Prothorax a little wider at apical third than at base, then very strongly convergent and deeply constricted to the apex, which is three-fourths as wide as the base; sides nearly straight; punctures fine and sparse. Scutellum very small, subglabrous. Hlytra at base scarcely noticeably wider than the prothorax, the sides straight and extremely feebly divergent © thence to apical third, then broadly rounded, constricted at apical fifth, the apex obtuse; humeri very feebly swollen ; strie fine; in- tervals almost impunctate in the denuded lateral area. Femora bristling beneath with long sete. Prosternum longitudinally, nar- rowly sulcate, the coxe narrowly separated. Length 2.7 mm.; width 0.9 mm. Texas (Columbus). Cab. LeConte. Represented, as far as I know, by the unique type, taken by Mr. Schwarz. This species bears no resemblance, in any way, to linearis, with which it is » accidentally united in the Henshaw Check-list, except in its gener- ally narrow subparallel form. 9 Barinus linearis Lec.—Proc. Am. Phil. Soc., XV, p. 422 (Bari- lepton). . ' Elongate, parallel, convex, black throughout, smooth but aluta- ceous in lustre, the vestiture white, consisting of moderately large, Coleopterological Notices, IV. 675 broad, triangular scales, almost evenly and quite sparsely distributed throughout but more denuded and sparse along the sides of the elytra, more broadly so toward base, and also in a small discal spot near the apex; on the under surface the scales are dense on the met-episterna and toward the sides of the abdomen behind, else- where sparse but only absent on that part of the mesosternum bounding the middle coxal cavities externally. Head impunctate, but with a few extremely minute feeble punctures anteriorly ; beak glabrous, punctate, very thick toward base, with some large scales bordering the eyes, much shorter than the prothorax ; basal joint of the antennal funicle scarcely as long as the next four together; club moderate. Prothorax not quite as long as wide, the sides straight and parallel or very feebly divergent to apical two-fifths, then rounded and convergent, the constriction very broad and feeble; apex not more than three-fifths as wide as the base; disk finely, rather unevenly but not very closely punctate, the scales almost uniformly distributed and sparse throughout; impunctate line dis- tinct, entire. LElytra just visibly wider than the prothorax and a little more than twice as long, parallel, narrowed in apical third, then obtusely rounded ; striz fine; intervals flat, rather finely, unequally, confusedly and not very closely punctate. Prosternum impressed, . the coxe large, prominent, rather narrowly separated. Length 3.7 mm.; width 1.25 mm. Florida (Sumter Co.). Cab. LeConte. Represented by the unique type, in which the last ventral segment has a rounded gla- brous polished and extremely deep median excavation. BARILEPTON. LeConte—Proc. Am. Phil. Soc., XV, p. 318. The species of Barilepton are probably the most slender of the Barini. The beak is short, thick, arcuate, strongly compressed, with the flanks crossed obliquely by the antennal scrobes, the latter beginning near the upper margin and slightly beyond the middle. The under surface of the head is frequently excavated transversely as in Barinus, and the basal joint of the funicle is elongate. The prosternum is broadly impressed and very narrowly separates the cox. One of the most remarkable characters of the genus is the structure of the tarsi, in which however it strongly resembles Bari- nus; the four posterior tarsi are almost invariably longer than the tibiz, and have the second and third joints dilated, the first being 676 Coleopterological Notices, IV. much smaller. There is but one tarsal claw, which is simple and moderately stout. The close relationship existing between Barilepton and Barinus affords another illustration, parallel to that of Hisonyx and Oomor- phidius previously mentioned, of the slight value to be attached, among some of the centrinide genera, to radical differences in the tarsal ungues, in comparison to the significance attending these modifications in the baride series. Our four species of Barilepton may be thus defined :— Elytra at base not wider than the base of the prothorax. Beak almost evenly arctate........sssceoeeee iesietnaeeatee .l filiforme Beak strongly bent near the iat pode tert saat sei still more slen- der; pronotal vestiture decidedly sparser..................2 famelicum Elytra at base wider than the contiguous base of the prothorax ; form a little stouter, the prothorax much less elongate. Prothorax constricted behind the apex; antennal club robust; basal joint of the hind tarsi longer, the second not quite as wide as the third and rather longer than wide, the third a little wider than long. 3 quadricolle Prothorax witheut trace of subapical] constriction; antennal club much less robust ; basal joint of the hind tarsi shorter and thicker, the second equal to the third and not longer than wide, the third scarcely as wide AIS LONG scanseaecses cto vsd.sccieveesn/see casloan oud noe eae usticasinmesstne/ tan echee penetra ieee 1 Barilepton filiforme Lec.—Proc. Am. Phil. Soc., XV, p. 319. Cylindrical, convex, shining but very densely clothed with large broad pale scales, sparser on the pronotum except at the sides, pale fulvous on the elytra but white along the flanks and in a feebly defined streak attaining the base at each side of the scutellum. Head and basal parts of the beak punctured and squamose, the impression obsolete but with a small inconspicuous median fovea ; beak distinctly shorter than the prothorax, stout, arcuate, compressed toward base, smooth and almost impunctate, the antenne inserted near the middle, the basal joint of the funicle as long as the next five together, the second slightly longer than the third; club mode- rately stout, as long as the first funicular joint, the basal joint appa- rently large. Prothorax about as long as wide, sometimes feebly dilated at apical third, generally parallel, broadly rounded toward apex, the constriction obsolete; apex fully three-fourths as wide as the base; punctures deep, moderately coarse and not quite in mutual contact. Hlytra about as wide as the prothorax and barely two and one-half times as long, the fine striz indicated by narrow Coleopterological Notices, IV. 677 partings of the very dense crust of scales. Prosternum feebly impressed, separating the coxe by one-fifth or sixth of their own width. Second tarsal joint almost as wide as the third and nearly as long as wide. Length 2.5-2.9 mm.; width 0.7-0.85 mm. Michigan and Illinois; also said by LeConte to occur in Virginia. Five specimens. 2 Barilepton famelicum. n. sp.—Very slender, cylindrical, convex, black, shining, the scales moderately large and broad, sparse and slender on the median parts of the pronotum, dense throughout on the elytra, very sparse, minute and narrowly lineate throughout on the abdomen except the sides of the last three segments, which are densely squamose. Head finely, sparsely punctate and squamulose ; beak punctured and sparsely squamose toward base, elsewhere smooth and polished, compressed, thick, scarcely more than three- fourths as long as the prothorax, very strongly arcuate near the base, nearly straight in apical two-thirds, the antenne inserted at or slightly behind the middle, the basal joint of the funicle longer than the next four, the club robust, a little shorter than the preceding six joints together. Prothorax fully as long as wide, often apparently a little longer, the sides parallel, nearly straight, feebly convergent and slightly rounded near the apex, the latter fully four-fifths as wide as the base, which is transverse, the median lobe almost obsolete; subapical constriction completely wanting; disk finely, rather sparsely and unevenly punctate. Scutellum very small, quadrate, glabrous, with one or two sete at each side. lytra equal in width to the prothorax and about two and one-half times as long, parallel; sides convergent in apical third, the apex obtusely rounded ; humeri not prominent; disk with very fine strie, the intervals wide, flat, densely, confusedly squamose. Abdomen sparsely punctate. Prosternum transversely constricted behind the apex, broadly, distinctly impressed along the middle, separating the cox very narrowly. Middle and posterior tarsi longer than the tibiw, the second joint not quite as _wide as the third but much wider than the first. Length 2.1-2.65 mm. ; width 0.4-0.7 mm. Colorado (Greeley). Mr. H. F. Wickham. This very small species is closely allied to filiforme, but may be distinguished by its smaller size, more slender form, sparser and more slender scales especially on the pronotum and along the median parts of each elytron, and also by the form of the beak which is more abruptly and strongly arcuate near the base. Seven specimens. 3 Barilepton quadricolle Lec.—Proc. Am. Phil. Soc., XV, p. 423. Cylindrical, convex, black, the legs rufescent ; integuments shining but densely clothed with pale scales, narrow on the pronotum, broad and denser on the elytra, moderately dense on the abdomen. Head sparsely, finely punctate, the impression obsolete; beak thick, about 678 Coleopterological Notices, IV. as long as the prothorax, compressed, smooth, polished, punctured — and squamose near the base, strongly, abruptly arcuate at base but nearly straight and gradually feebly flattened thence to the apex; antenne inserted near the middle, the basal joint of the funicle as long as the next four. Prothorax slightly wider than long, swollen at the sides anteriorly and wider at apical third than at base, the sides convergent and feebly constricted thence to the apex, the latter barely two-thirds as wide as the base; disk rather closely, strongly, unevenly punctured, with a narrow impunctate median line. Scu- tellum very small, quadrate, glabrous. Elytra quite distinctly wider than the base of the prothorax, feebly subinflated behind the middle, distinctly more than twice as long as wide, the humeral callus slightly prominent; striz fine, deep and abrupt; intervals flat. Prosternum broadly, deeply impressed along the middle, the mar- gins of the impression not abruptly defined ; transverse constriction moderately distinct; anterior coxe separated by one-fifth of their own width, the intermediate by slightly less than their width. Length 3.1-3.8 mm.; width 1.0-1.1 mm. Nebraska. Thies from jiliforme in its larger size, more robust outline, elytra wider than the prothorax, longer beak and many other characters. 4 Barilepton falciger n. sp.—Cylindrical, convex, black through- out, shining and with a feeble violaceo-metallic lustre, densely clothed on the elytra with rather large, pale scales, which are sparse and narrower on the pronotum, also dense toward the sides of the sterna and last three ventral — segments. Head rather finely, closely punctate, almost impunctate and broadly excavated beneath ; basal constriction obsolete, the outline straight in profile ; beak short, robust, sickle-shaped, very strongly bent at basal third and strongly compressed, slightly flattened toward apex, smooth, polished, punctured toward base, not quite as long as the prothorax, the antenne inserted just beyond the middle and near the upper margin, the scrobes rap- idly oblique along the flattened flanks, the basal joint of the funicle longer than the next four, obconical, the second much narrower, cylindrical, not quite as long as the next two, outer joints more robust; club moderate, nearly as long as the preceding six joints. Prothorar but slightly wider than long, the sides feebly divergent and nearly straight to apical third, then rounded and convergent to the apex, the constriction obsolete; apex three- fourths as wide as the base ; disk not very coarsely, somewhat unevenly punc- tate, the punctures well separated ; narrow impunctate line distinct. Scutel- lum very small, nearly glabrous. lytra not at all wider than the disk of the prothorax, but, at base, just visibly wider than the base of the latter, dis- tinctly more than twice as long as wide, parallel, parabolic in apical third ; humeri not prominent; disk with a more prominent humeral condensation Coleopterological Notices, IV. 679 of scales, finely striate. Abdomen strongly but sparsely punctate. Prosternum with a broad median impression, the coxe narrowly separated. Length 2.75 mm.; width 0.8 mm. California (San Bernardino). The four hind tarsi are much longer than the tibiz, the basal joint of the posterior obconical and distinctly shorter and narrower than the second, the latter large, as wide as long and fully as wide as the third, which is not transverse but narrowly deeply emar- ginate, the fourth joint is rather short and very slender. The type is a male, having a long narrow impression near the base of the abdomen. EUNYSSOBIA n. n. Eucheetes || LeConte—VProc. Am. Phil. Soc., XV, p. 319. This genus was proposed by LeConte, unfortunately under a name which had been employed several times before in zoology, for one of the most remarkable curculionides thus far discovered. Its aberrant nature was in fact only partially known to its author, who makes no reference whatever to the mandibles. The general habitus of the body, abdominal structure and conformation of the mes-epimera, show that it is a normal member of the Barini, but its rostral and mandibular characters indicate that it should be widely isolated, forming with Plocamus a group or subtribe. The beak is extremely slender, cylindrical and strongly arcuate, but becomes abruptly inflated and thickened behind the antenne, the under surface of the dilated portion having a narrow deep groove along the middle, which is gradually narrowed posteriorly and confluent at base with a deep transverse constriction, extend- ing upward at the sides just in front of the eyes, becoming gradu- ally attenuated and extinct and not attaining the upper surface. This longitudinal groove is but a remnant of the usual channel formed by the confluent scrobes, and is far too narrow to receive the antennal scape, the latter being free. The antenne are com- pletely inferior in insertion and are situated between basal third and fourth in both sexes, the scape rather thick, short and extend- ing to the under surface of the head between the eyes, the latter being normal and widely separated beneath. The mandibles are very short and thick, compressed, bent upward and move in a nearly vertical plane as in Balaninus, the condyles being contiguous above and received in broad deep fissures at the 680 Coleopterological Notices, IV. sides of the buccal opening beneath; the upturned apex is very — coarsely and deeply notched. It can be readily seen that in this position, the condyles have the largest and most powerful muscular attachment permissible under the circumstances. The habits of this species, as well as Balaninus, necessitate a slender cylindrical boring tool, not at all enlarged at apex, and, if the condyles were horizontal in their plane of motion, they would, because of their slight lateral development, be very feeble in muscular action; they have there- fore been graduaily turned into a position as nearly vertical as pos- sible, simply to allow of a broader base for the attachment of the muscles. Mandibles of this kind are of course incapable of grasp- ing or pinching to any useful degree, and can be used only in cut- ting and scraping a passage for the advancing beak, and it does not follow at all that because the mandibles are similar in their action to those of Balaninus, that there is any special relationship between these genera. In point of fact the remaining structural characters of the body, including the form of the mandibles themselves, are so widely different in Balaninus and Eunyssobia, that there cannot be the least affinity between them, except in the method of using the beak as a boring instrument. The buccal fissure is very narrow and deep, being, at the anterior extremity, not more than one-fourth as wide as the rostrum, and the mentum is long and extremely slender; the remaining organs of the mouth appear to be atrophied or very feebly developed. The prosternum is broad, strongly, transversely constricted behind the apex but not otherwise modified, and separates the rather small coxe by nearly twice their own width. The legs are normal, the tarsi very slender, with the two basal joints elongate, feebly ob- conical and subequal, the third small, scarcely wider than the apex of the second, deeply emarginate, the fourth with its basal node, about as long as the first two together; claws rather slender, arcu- ate, simple and divergent. Pygidium completely concealed. 1 Eunyssobia echidma Lec.—Proc. Am. Phil. Soc., XV, p. 320 (Euchetes). Oval, convex, very uneven, black, the antenne brown; slender portion of the beak rufous; body extremely densely clothed through- out with a crust of large, closely adherent, scale-like plates, varie- gated white, brown and blackish in color and sparsely clothed with very long, stiff and erect spiniform bristles. Beak three-fourths Coleopterological Notices, IV. 681 © as long as the body in the female, sensibly shorter but otherwise entirely similar in the male, very slender, cylindrical, glabrous, shining, sparsely punctured in even series, evenly and strongly arcuate from the antenne to the apex, but abruptly, strongly in- flated, thickened but straight in lateral profile, spinose and very densely covered with a rough crust of scales from that point to the base; antenne slender, the scape short, the basal joint of the funicle subequal to the next two; club moderate, oval, densely pubescent and without distinct sutures. Prothorax much wider than long, very strongly constricted and tubulate at apex, the base twice as wide as the apex, transverse but deeply sinuate at each side of the lobe, which is abrupt, prominent and rounded, its surface with a dorsal impression receiving the scutellum; disk uneven, a large shallow impression on each side of the median line, behind the middle, especially obvious. Scutellum moderate, slightly tumid, oval, ogival behind, anteriorly prominent in the middle of the sinua- tion which receives the thoracic lobe and slipping partially over the surface of the latter. Elytra barely as long as wide, distinctly wider and two-thirds longer than the prothorax, the sides rapidly convergent and broadly evenly arcuate from base to apex, the latter very narrowly rounded, ogival, with a small sutural notch; striz indicated only by very fine partings of the crust. Under surface and legs densely clothed with a squamose crust of cinereous scales and with short sparse erect and stiff sete. Length 2.6-3.2 mm.; width 1.3-1.6 mm. Ohio, Kentucky and Iowa, apparently not rare and said to depre- ' date upon the hickory; its habits are probably quite similar to those of Balaninus. It should be remarked that in some species of Cen- trinus, such as hospes, the beak is strongly inflated behind the an- tenne, especially in the female and probably from causes similar to those which have produced the inflation here; but in Hunyssobia it does not appear to be at all sexual in character, and, in the species of Centrinus, the antenne are not inferior in insertion, although in hospes they are inserted very near the lower margin, the scrobes being broad and entirely inferior. PLOCAMUS. LeConte—Proc. Am. Phil. Soc., XV, p. 320. The single small species forming the type of this genus is unmis- takably allied to Hunyssobia echidna, but differs in several peculi- 682 Coleopterological Notices, IV. arities of indubitable generic import. The principal of these are the shorter beak, which is gradually stout and conical near the base and not abruptly inflated, the channel beneath being broad, shallow, and serving as a partial shelter for the antennal scape, the absence of any trace of the transverse basal constriction, and the shorter second joint of the antennal funicle. The mandibles are entirely similar, but the trophi, and especially the maxillary palpi, seem to be larger and better developed, and the tarsi are shorter, particu- larly the second joint, which is but slightly longer and scarcely at all narrower than the third, the fourth being nearly as long as the first three together. 1 Plocamus hispidulus Lec.—Proc. Am. Phil. Soc., XV, p. 320. Oblong-oval, moderately convex, black, the beak rufous; antenne brown; integuments densely clothed with large contiguous squami- form plates, variegated with white, brown, and piceous, a transverse spot of the latter color just behind the middle of the elytra especi- ally noticeable ; under surface white; erect dorsal bristles very short and sparse. Beak but slightly longer than the head and prothorax, slender, arcuate, glabrous, linearly punctated and finely bicarinate beneath from the antennez to the apex, but rapidly and conically robust thence to the base, the basal portion densely clothed with large rough concave and squamiform plates; antenne inserted at basal fourth on the under surface, the scape short, attaining the head, the basal joint of the funicle slightly longer than the next two, second one-half longer than the third, seventh obconical, nearly as long as the fifth and sixth, club small, slender, not abrupt, oval, compressed, sparsely pubescent on the inner, densely on the outer side, devoid of sutures but with a small terminal button. Pro- thorax small, transverse, constricted and tubulate at apex, rather distinctly and densely punctate. Scutellum distinct, white, oval. Elytra abruptly much wider than the prothorax, more than twice as long as the latter, the sides subparallel toward base, gradually, broadly and obtusely rounded behind, with a minute and feeble sutural notch; striz evident only as very fine partings of the crust. Prosternum large, not in the least impressed, separating the coxe by not quite twice their own width and evenly, transversely con- stricted behind the apex. Length 1.9-2.2 mm.; width 0.8-1.0 mm. Maryland. ‘This species has been taken also by Mr. Ulke in the District of Columbia. Coleopterological Notices, IV. 683 ADDENDA, I. It is to be regretted that a number of species, described by the older writers, continue to remain unknown, and that it will be for- ever impossible to surely identify them, because of the neglect on the part of their several authors to record structural characters, which might enable us to form an opinion concerning their proper generic positions. These species are the following :— 1 Baridius anthracinus Boh.—Sch. Cure., III, p. 727. The depressed form may indicate a close relationship with Limnobaris, as before remarked (p. 554), but I do not know any species with decidedly trans- verse interstitial punctuation ; perhaps, like crenatus, the references to which are similar in the Munich Catalogue, it may be Mexican and not an inhabitant of the United States. _2 Baridius californicus Mots.—Bull. Mose., 1845, II, p. 372. May possibly be the species subsequently described by LeConte under the name Centrinus nasutus. At any rate it might for the present be appropriately assigned to Limnobaris. 3 Baridius californicus Boh.—Eug. Res., Ins., 1859, p. 137. This is probably a species of Baris, allied to rubripes, but having the beak longer and the elytral intervals smooth, or it may possibly be Onychobaris sertata. It is said to have been taken near San Francisco. 4 Baridius confertus Boh.—Sch. Curc., III, p. 728. Described from Florida. It may be assigned at present to. Onychobaris, although I have never seen a representative of that genus from the Atlantic regions. 5 Centrinus dilectus Harris—Trans. Hart. Soc. Nat. Hist., 1836, p. 79. The description enables us to assign this species to Centrinus without much doubt, and it may possibly be a large female example of one of the densely squamose variations of Centrinus salebrosus The locality is not recorded. 6 Centrinus pistor Germ.—Sch. Curc., III, p. 170. I can add nothing to the remarks made by LeConte (Proc. Am. Phil. Soc., XV, p. 433), except to suggest that this also may be the female of Centrinus salebrosus, or of a species closely allied. tT: Baris scolopacea Germ.—This species, introduced from Europe, may be known by its elongate-oval, convex form and dense but uneven vestiture of white and brown scales, of which a subsutural white spot at the middle of ~ each elytron is especially conspicuous. I have seen several specimens ‘taken near Philadelphia. Scolopacea may be attached provisionally to Baris, but the long beak, separated from the head by a fine deep abrupt groove, and the Annats N. Y. Acap. Sct., VI, Nov. 1892.—45 684 Coleopterological Notices, IV. scaly vestiture, would necessitate its removal from the genus if studied with reference to the homologies of the American series of genera. The European species of Barini are more difficult to treat generically than our own. Some of them, such as schwarzenbergi, limbata, artemisie, atronitens, carbonaria, chlorizans, axl other similar forms, seem to be consistent with our conception of Baris, but there are many aberrant types, having the beak longer or sepa- rated from the head by a deep abrupt groove, or with the third tarsal joint undilated, the body covered with a waterproof coating of scales, or the tarsal claws subeconnate at base, such as spoliata, loricata, convexicollis, picturata, sellata and nitens, which cannot be retained in Baris proper, and yet the structural differences do not appear to be great.’ In judging genera in this tribe, especially among the European representatives, much dependence will have to be placed upon that summation of minor characters known as ‘habitus’, and, if with this difference of facies we can perceive some real structural peculiarity, a study of the European species in connection with our own seems to show that it will eventually have to be accepted as a generic criterion. There is no other way in which the old and new world species can be consistently arranged in homogeneous succession from a generic standpoint. ) DEL. The measurements of length throughout the present paper ictus the entire body and head, but exclude the beak as usual. CALANDRID A. CALANDRINZ. CACTOPHAGUS Lec. This is a very well defined and somewhat isolated genus, dis- tinguishable from Sphenophorus by the larger smoother body, cyl- indrical uncompressed beak and several other characters. It will include a number of species inhabiting northern Mexico and the regions adjacent. Our species are entirely black, but there are several before me from Mexico, in which each elytron has a sub- ‘ basal and subapical crimson fascia. The two species which are at. once distinguishable among the Arizonian specimens in my cabinet, may be described as follows :— | Coleopterological Notices, IV. 685 Body densely dull and velvety-black above, not in the least shining, the pro- notum not transversely grooved at base; elytral strie but just visibly coarser near the base, very finely, remotely punctate throughout, the punctures only cid less minute suneal Length 22.0 mm.; width SoC eI is soy 0s-s0e aca . validus Lec. Body less dull, Preteceine, oe a ai head ne ree Be beak polished ; punctures throughout larger and deeper; pronotum with a deep entire transverse groove before the basal margin; elytral strie fine but very deep, much coarser and more strongly punctate toward base, distinctly and less remotely punctate throughout, the punctures distinct by un- aided vision laterally and toward base; elytra relatively less elongate. Length 18.0-19.5 mm.; width 7.0-8.0 mm. Arizona. Three specimens. subnitems n. sp. Subnitens is not to be confounded with the individual variation described by Dr. LeConte under the name procerus, the latter is dull, opaque and velvety-black like the typical forms of validus. The dull lustre in this genus is caused, not by granuliform re- ticulations, but by a beautifully regular system of extremely minute, subeontiguous but not in the least confluent punctures, which are deep and with the edges abrupt. In validus these minute punc- tures are finer and deeper than in subnitens; in the latter each of the fine sparse punctures of the intervals is surrounded by a pol- ished ring, caused by an obliteration of the minute ground-sculp- ture, while in validus these areole do not exist. CALANDRA Clairv. It is possible that this genus may have originated in the hypo- thetical continent, represented at present by a few islands extending from Ceylon to Madagascar; several species are, however, now endemic in the East Indies and one or two perhaps on the west coast of South America. From these regions a number of species have been distributed throughout the world in various kinds of grain. It is quite impossible, therefore, to be sure of the native country of any unfamiliar forms which may occur among us, and, perhaps because of this uncertainty, the genus as a whole has been neglected of late by systematic writers. In arranging the numerous examples in my cabinet I find four widely distinct species and two subspecies. The true species, one of which it is impossible to identify from published descriptions, may be characterized as follows :— 686 Coleopterological Notices, IV. Elytra with impressed and feebly punctate sulci, the intervals smooth and alternately wider and more elevated especially toward base; pronotum with coarse sparse and elongate punctureS.............seeeeee STARAPIA Elytra with contiguous double series of coarse deep punctures, the double series separated by narrow uniseriately punctate intervals. Pronotal punctures fine even and Cae separated, the surface smooth and: wirus wally (COMMER. caccc sas sce saslc'es geleiccs eatteas auciecniwesend sere .. Limearis Pronotal punctures Palner « coarse, ane very denue bepeerailee toward the sides, rounded and not elongate, the surface rather depressed on the disk. ory ze Pronotal sculpture extremely coarse deep and dense, consisting of long sinuous anastomosing and obscurely punctate ruge, with a narrow but entire subcariniform median line; elytral sculpture exceedingly deep and GENSC sce cesineiese shemacinewiesinae cesinasin once das omsloasiwacinwasaalcea eucicactensjsec iors MRNA ee inne C. granaria Linn.—Syst. Nat., Ed. X, p. 378; remotepunctata Gyll.: Sch. Cure., IV, p. 979. The differences given by Gyllenhal to distinguish remotepunctata are apparently not sufficient, for, color being of little or no value, the only character given to distinguish it is the slightly greater distinctness of the strial punctures toward the suture and of the punctured series of the sutural interval. Length 3.3-4.0 mm.; width 1.1-1.3 mm. SN Distributed throughout the United States. C. linearis Hbst.—Kaf., VII, p. 5, t. 100, f. 1. Described fron. the West Indies but occurring at times in the ‘Atlantic States. It may always be known by the fine even pune- tuation of the pronotum. Length 3.3-3.8 mm.; width 1.1-1.15 mm. Probably a native of India, from which region a variety is noted in the Munich Catalogue. C. oryzee Linn.—Ameen. Ac., VI, 1763, p. 395. The typical form of this cosmopolitan species is perhaps the smallest member of the genus. It somewhat resembles the two previous species in outline, but is very densely punctured on the pronotum, the punctures much coarser than in linearis and not elongated as in granaria. A series of eleven specimens of what may be regarded as the typical form, give the length 2.1-2.8 mm. and width 0.75-1.0 mm. Var. zea-mais Mots.—Etud. Ent., IV, 1855, p. 77. Similar in every appreciable detail of structure to oryzz, but always larger and especially stouter. A series of eight specimens Coleopterological Notices, IV. €87 from Texas (Austin) and Florida give the following dimensions. Length 3.2-3.4 mm.; width 1.1-1.25 mm. Another variety is represented before me by two specimens from Guerrero, Mexico, which are of about the same size as zea-mais, but more coarsely and densely punctate, and more opaque, with the elytral punctures more quadrate. C. rugicollis n. sp.—Oval, moderately stout, rather flattened above, dull, very sparsely clothed with short erect yellowish sete, forming single series on the alternate elytral intervals. Head deeply but not coarsely, rather sparsely punctate, with a large deep fovea between the eyes; beak in the female slender, feebly arcuate, smooth, minutely sparsely and sub- seriately punctate, fully as long as the prothorax, abruptly and angularly dilated, duller and coarsely, seriately punctate near the base; antenne in- serted at basal sixth, slender, the second funicular joint obconical and one- half longer than the third. Prothorar barely as long as wide, the sides rather strongly convergent from near the base, rounded at base, deeply, tubularly _ constricted at apex, the latter fully one-half as wide as the base; disk deeply, rugosely punctate. Scutellum dull, impressed. Elytra at the humeri exactly equal in width to the disk of the prothorax, two-fifths longer, the sides strongly convergent throughout and nearly straight; apex conjointly rather narrowly rounded ; disk with contiguous series of very coarse, quadrate, closely crowded punctures, alternately separated by narrow flat intervals, each of which is coarsely, uniseriately punctate, the punctures oval and almost contiguous. Pygidium and under surface coarsely deeply and densely punctate. Length 4.0 mm.; width 1.5 mm. Florida. A single specimen, taken by Mr. F. Kinzel in the southern part of the State and presented to me by Mr. W. Jiilich. This species is undoubtedly allied to the African rugosvs Thunb., but differs according to the description of Schouaherr, in its much shorter, non- eanaliculate prothorax, and its more strungly and closely punctate abdomen. Rugicollis is brownish-black in color, the elytra each elouded feebly with rufous along the middle. The base of the pro- thorax is transverse and perfectly straight. In rugosis the pro- thorax is said to be one-half longer than its basal width. RAININ ZA. YUCCABORUS Lec. This singular genus is unmistakably allied to Rhina, being in fact nearly identical in rostral structure, but differs in many impor- tant features, among which may be mentioned the widely separated 688 Coleopterological Notices, IV. eyes, much more abbreviated, dilated and semi-corneous antennal club, deflexed beak, short legs, and smaller size of the body. The three species before me may be easily separated as follows :— Piceous-brown, the punctuation of the upper surface finer and more remote. Body narrowly cylindrical, the elytra more than twice as long as wide; punctures of the elytral series becoming very fine and feeble in apical half, the fifth and sixth series coalescent at base; humeri tumid and PLOMIN ENE «veride Gasleos cus wee coe/seis cneiaen nae wilson -tuiseceraceies«/sichisatinren et se Mt Mien Mancina man Body much more robust, the elytra not quite twice as leng as wide; punc- tures of the elytral series deep throughout, although small in apical half as usual; fifth and sixth series widely separated at base ; humeri not LUT. 504 psn one danlecietnegis an wai eins ot waleinst pela Seinwica/aae ecletee eee eens meE een eens ea ile nt an Black, much larger, coarsely and deeply sculptured ; legs and tarsi stouter. grossus Y. frontalis Lec.—Trans. Am. Ent. Soc., 1874, p. 70 (Rhina). Readily distinguishable by its slender cylindrical form and cas- taneous color. The prothorax is very nearly as long as wide, the sides broadly, evenly arcuate, the apex finely and deeply constricted, three-fourths as wide as the base, the latter broadly evenly and just visibly arcuate. Elytra but slightly wider than the prothorax and much more than twice as long, strongly alutaceous especially be- hind, the series feebly impressed, the intervals toward base three to four times as wide as the strial punctures, sparsely punctured. Length 9.8 mm.; width 3.2 mm. Southern California. Found under the bark of Yucca in the Mohave Desert. Y. sharpi n. sp.—Moderately stout, cylindrically convex, dark chestnut- brown, polished and glabrous throughout, the elytra but faintly alutaceous behind. Head convex, polished, strongly but remotely punctate; eyes very remote above, contiguous beneath; beak in the male straight, wider than thick, parallel, coarsely deeply and rugosely punctate, feebly dilated at the antenne, barely three-fourths as long as the prothorax; antennez inserted just beyond the middle, the scape thick, attaining the eye, second funicular joint longer than the first and as long as the next two, club oval, compressed, as lovg as the four preceding joints, the polished corneous part extending, on the flat side, to apical third. Prothorax about as long as wide; sides evenly, broadly arcuate; apex finely constricted, three-fourths as wide as the base; punctures coarse, perforate, remote, close on the flanks. Scutellum small, polished. lytra one-third wider than the prothorax, more than twice as long, the punctured series strongly impressed toward base; interstitial punctures remote, confused but forming nearly even single series on the narrower intervals. Length 9.7 mm.; width 3.7 mm. Coleopterological Notices, IV. 689 Mexico (Guerrero). Mr. Baron. Allied to frontalis but distinguishable by its stouter form, more polished integuments, much less prominent humeri and several other characters. I take great pleasure in dedicating this species to Dr. D. Sharp. Y. grossus n. sp.—Oblong, subcylindrical, broadly feebly convex above, deep black, polished, the elytra dull. Head coarsely, rather sparsely punc- tate ; beak in the male straight, wider than thick, coarsely, densely, rugosely punctate, feebly dilated and tumid at the antenneg, thence feebly and evenly narrowed to the apex, two-thirds as long as the prothorax; antenne inserted distinctly beyond the middle, the scape rather long, thick, evenly and gradu- ally claviform, attaining the eye, second funicular joint much longer than the first, equal to the next two, four to six transversely subcuneate, club nearly as long as the preceding four joints, the corneous portion extending on the flat side to apical two-fifths. Prothorar about as long as wide, the apex con- stricted, two-thirds as wide as the base; sides broadly arcuate; disk evenly convex, very coarsely perforato-punctate, the punctures well separated above, coalescent on the flanks. E/ytra one-third wider than the prothorax and more than twice as long, not quite twice as long as wide; strial punctures deep, coarse, contiguous, continuing large and distinct to the apex; intervals toward base two to three times as wide as the strix, coarsely, unevenly, sparsely punctate, anterior tibie broadly, feebly arcuate toward apex, having an in- _ ternal series of small denticles. Length 11.5-14.0 mm.; width 4.2-5.2 mm. Texas (El Paso); Arizona. Mr. G. W. Dunn. The largest species which I have seen and quite distinct from either frontalis or sharpt. CoOsSONINZ. METOPOTOMA ». gen. The single species is an interesting addition to the anomalous group of genera allied to Gononotus. Body in form and convexity nearly as in Gononotus. Head short, sub- globular, smooth and polished, deeply, transversely incised throughout just behind the eyes, which are situated at the sides of the beak at base, rather large, distinctly convex and composed of very large facets, which are flat and not convex. Beak rather long, thick, parallel and arcuate, the anten- mal scrobes rapidly descending at first, becoming completely inferior, not coalescent. Antenne subcylindrical, long but thick, inserted at apical two- fifths, the scape clavate, attaining the limits of the eye beneath, longer than the apparent funicle, the latter consisting of six joints, the first scarcely more robust, oval, the second obconical, subelongate, much longer than the first and one-half longer than the third, three to six subequal, wider than long, paral- 690 | Coleopterological Notices, IV. lel-sided, not increasing much in thickness, with the articulations deep ; club large, as long as the preceding five joints, complex in structure, the basal half, composed of the modified seventh funicular jviat, obconical, as long as wide, polished and sparsely setose, the apical paler, oval, obtuse, densely pubescent and indistinctly annulate. Scutellum small but distinct. Metasternum short. Anterior coxe large, globular, extremely approximate; intermediate very narrowly separated ; posterior rather remote. Legs somewhat long and thick ; femora sinuate beneath near the apex; tibie subparallel, the apical uncus well developed, the anterior also with an internal subapical tooth; tarsi cylindrical, rather stout, the third joint scarcely visibly thicker and sparsely setose beneath, not bilobed. From Gononotus this genus differs in its composite antennal club, undilated third tarsal joint, elongate prothorax, smooth, polished head and many other characters. M. repens n. sp.—Elongate-ovoidal, convex, dull, black and subgla- brous, each large fovea, however, with a small fulvous seta; there are also a few clusters of such setz on the more tumid portions of the elytral intervals. Head glabrous; beak not quite as long as the prothorax, dull, with coarse shallow punctures, sublinearly arranged but becoming finer and irregular to- ward apex. Prothorax quite distinctly longer than wide, the sides parallel, broadly feebly and evenly arcuate, rather abruptly rounded and moderately deeply constricted behind the apex, the latter three-fourths as wide as the base and broadly sinuate in the middle; base broadly feebly snd evenly arcu- ate; disk evenly, feebly convex, very coarsely, remotely foveate, the fovee shallow, rounded, and annulate just within their edges with fine cinereous tomentum; median line finely and strongly carinate, the carina attaining neither base nor apex. lytra oval, at the middle one-half wider than the prothorax, not quite twice as long as the latter ; humeri obsolete; base broadly emarginate ; disk with series of very large deep and unevenly impressed fovee, the intervals uneven, not wider than the series and remotely, feebly tumorose, the tumid parts setose and also finely cinereo-tomentose. Under surface coarsely, remotely foveate, the fovee shallow. Length 5.2mm. ; width 2.0mm. California (Humboldt Co.). I took the type specimen in some loose mossy turf, covering the gravelly slopes of a shallow ravine near the town of Arcata; its sex is not apparent. This is one of the largest cossonides in our fauna excluding the genus Cossonus. HIMATIUM Woll. There is some doubt concerning the actual identity of Wollas- ton’s genus with the species assigned to it by LeConte. Accord- ing to the description, however, it must be very closely allied to Coleopterological Notices, IV. 691 our representatives, to such a degree indeed that these could not be advantageously separated without inspecting the original type. As represented by nigritulum, the genus has the body rather de- pressed above, feebly cuneiform, with the head short and almost en- tirely enclosed within a subtubulate extension of the prothorax, the eyes small, flat, coarsely faceted and in great part inferior, not visible from above but widely separated beneath. Beak short but slender, feebly arcuate, parallel, inserted at an angle with the surface of the front, so that it is distinctly separated from and very much nar- rower than tke head. Antenne inserted quite distinctly behind the middle, the scrobes nearly horizontal, not attaining but directed upon the eye; scape short, clavate; funicle slender, 7-jointed, the basal joint rather longer than the next two; second to seventh feebly increasing in thickness, equal in length, subquadrate; club as long as the preceding four joints, narrowly fusiform, polished, sparsely setose, not annulate. Scutellum distinct. Prosternum flat; anterior coxz remote, separated by fully their own width; intermediate one-half more widely separated. Metasternum long. Legs short, slender; tibie without internal spur, the uncus well developed; tarsi short, the third joint feebly dilated, the fourth about as long as the preceding three combined. The three species, which it is necessary to include at present within the genus, may be recognized as follows :— Prothorax truncate laterally at apex, remote from the eyes. Body parallel, ferruginous, densely but coarsely pubescent, the pronotum coarsely, eS See the Behe: series coarse and approxi- MATE 2. ce rerveescecscceeces oes +. . eee. ~@rrans Body Bie aisats, more convex, black ae ee re eat ue pronotal punctures much smaller, distinctly aletived’ ; oie series not impressed, the intervals wide.. siseisiescratrciaeteote\s Edin . Migritulum Prothorax partially Pe eatin the eyes at tie sage: hea 5 hot distinctly sepa- rated from the head by a transverse impression.................-COMICUMR H. conicum must certainly constitute a genus distinct from that including errans, if the characters given by LeConte are correct (Trans. Am. Ent. Soc., VIII, p. 218), and the probabilities are that each of these species will ultimately become the type of a dis- tinct genus. | H. nigritulum 02. sp.—Black, the elytra somewhat shining, legs, an- tenn and apical parts of the prothorax piceous-brown, vestiture very sparse, consisting of erect setiform scales, especially visible on the beak and toward 692 Coleopterological Notices, IV. the elytral apex. Head smooth, vaguely sculptured, polished; beak three- fourths as long as the prothorax, opaque, finely but deeply, rugosely and very densely sculptured. Prothorax conical, a little longer than wide, con- stricted behind the apex, the apical tubulation feebly inflated, receiving the head ; apex three-fourths as wide as the base; punctures moderately coarse, deep, rounded but subcontiguous, without median line. Elytra slightly wider behind the middle than at base, nearly two-thirds wider than the prothorax and more than twice as long; sides feebly arcuate, abruptly convergent and sinuate near the apex; humeri broadly exposed but rather obtuse; disk with unimpressed series of moderately large deep oblong and almost contiguous punctures; intervals flat, a little wider than the serial punctures, feebly rugose but shining. Under surface densely deeply and rather coarsely punc- tate. Length 1.75 mm.; width 0.6 mm. Florida. A single specimen without more precise indication of locality. ALLOMIMUS Lec. In this genus the beak is rather thin or but moderately stout, nearly straight, parallel, not conspicuously separated from the front, the eyes moderate in size, rather convex, not very finely faceted and situated at the sides of the head, the antennal scrobes deep, sublinear, directed feebly downward to the lower limit of the eye, the funicle 7-jointed, with the basal joint larger, the second obconical and distinctly longer than the third. Our two species differ greatly in structure and should perhaps be assigned to sepa- rate subgenera; they may be defined as follows :— Beak thinner, a little more than one-half as long as the prothorax; anterior coxe larger, separated by their own width; elytra deeply striate, the sulci coarsely punctate, the sutural sulcus much less distinctly so. dubius Horn Beak shorter and stouter, scarcely one-half as long. as the prothorax ; pronotal punctures smaller and closer ; elytra feebly sulcate and much less coarsely punctate, the punctures of the sutural stria as distinct as the others ; an- terior cox much smaller and more remote, Separated by nearly twice their own width. Head polished, almost impunctate, separated from the beak by a feeble transverse impression, the beak throughout coarsely deeply and subrugosely punctate. Prothorax,about. as long as wide, subconical, feebly depressed above, slightly constricted behind the apex, the latter barely two-thirds as wide as the base. Scutellum distinct. Elytra a little wider than the prothorax and about twice as long, par- allel, the sides convergent and nearly, straight in apical third, the apex narrowly rounded. Abdomen deeply but not very densely and somewhat unevenly punctate. Length 1.9 mm.; width 0.65 mm. Texas (Columbus ANG: AUSTIN) csetsrssinve ond vsvisde'sesiteaand oxdiaciegis Vveesbelscemssisen cues MDOn NM MGM ort ems [am Coleopterological Notices, IV. 693 Politus is slightly smaller, relatively broader and more depressed than dubius, and may be known at once by the shorter beak, finer, more even sculpture, paler color and smaller, much more remote anterior coxe. STENANCYLUS 1». gen. The principal characters may be expressed as follows :— Body elongate, slender, convex, the scutellum distinct, the metasternum elongate and the anterior coxze widely separated. Head rather elongate, coni- cal; beak short, broad, parallel, not in the least constricted or transversely impressed at base. Antenne inserted behind the middle, the scrobes deep, beginning beyond the middle, rapidly descending to the lower margin of the eye; scape moderate in length ; funicle 7-jointed, the basal joint rather stout, as long as the next two; second to seventh rather short, subequal, feebly in- creasing in width, just visibly obconical; club moderate, oval, densely but coarsely pubescent, with the basal joint constituting about one-half of the mass. lHyes not very large, situated at the sides of the head, very convex, prominent and coarsely faceted. Legs short; tibie rather slender, with a small internal spur at apex, the external uncus well developed; tarsi rather stout, the third joint feebly dilated, fourth slender, arcuate, not quite as long as the three preceding together. This genus is allied to Macrancylus, but differs in its rather stouter, more elliptic body and radically in its oblique and not hori- zontal scrobes, also in its more prominent and coarsely faceted eyes, and parallel beak; in Macrancylus the beak is conical in form. From Rhyncolus it may be known at once by its more widely separated coxee and coarsely faceted eyes, as well as its more slender bodily form. . S. colomboi n. sp.—Elongate, narrowly oval, cylindrically convex, glabrous, polished and pale rufo-piceous throughout. Head and beak con- tinuous, transversely convex, finely but strongly, not very densely punctate, the eyes situated at a great distance from the prothorax ; beak scarcely as long as the head and two-fifths as long as the prothorax, straight. Prothorar a little longer than wide, broadly, very feebly constricted near the apex, the sides feebly arcuate ; apex slightly arcuate, three-fourths as wide as the base ; punctures rather fine but strong, uneven but separated by about their own widths without trace of median line. Scutellum small, oval. Elytra dis- tinctly wider than the prothorax and more than twice as long, twice as long as wide, the sides parallel and straight to apical third, then convergent and sinuate, the apex narrowly obtuse ; humeri right; strise coarsely feebly im- pressed, coarsely punctate; intervals narrow, finely, uniseriately punctate. Under surface coarsely but not very densely punctate. Length 2.2-2.4 mm. ; width 0.6 mm. 694 Coleopterological Notices, IV. Florida (Biscayne Bay and Uape Jupiter). Mr. Schwarz. I have dedicated this species to the memory of the distinguished navigator Cristoforo Colombo. CARPHONOTUS nn. gen. A single species, boreal in habitat and partially pubescent, pos- sesses several peculiarities of structure which appear to prevent its assignment to any of the described genera. Body moderately stout, somewhat depressed above, the elytra parallel, much wider than the prothorax ; scutellum distinct, flat, ogival. Head short, the beak straight, moderately short, parallel, not separated from the head by a transverse impression. Antenne inserted a little beyond the middle, the scrobes deep, obliquely descending beneath the eye; scape moderate; funicle 7-jointed, the basal joint stout, as long as the next two; second to seventh equal in length, but slightly wider than long, gradually a little thicker ; club abrupt, moderate in size, the basal joint large, polished, sparsely setose. Eyes on the sides of the head at their own length from the prothorax, not very finely faceted, somewhat convex and prominent, transversely oval. Prosternum separating the large anterior coxe by one-half of their own width ; interme- diate coxe rather more than twice as widely separated as the anterior. Meta- sternum long. Legs stout; tibize parallel, the external uncus well developed but without trace of internal spur at apex; tarsi rather stout, the third joint distinctly dilated and bilobed. This genus is somewhat allied to Stenancylus, but differs in its broader form, relatively narrower prothorax, less prominent, more finely faceted eyes situated much nearer to the anterior margin of the prothorax, shorter head, longer beak with the antenne inserted beyond the middle, relatively less widely separated anterior coxe, absence of internal tibial spur, and in the hairy vestiture. C. testaceus n. sp.—Oblong-oval, feebly depressed above, pale rufo tes- taceous throughout, smooth and polished, the upper surface with short coarse and very sparse, subrecumbent pubescence, becoming erect toward the elytral apices and somewhat bristling on the beak. Head and beak minutely but strongly, not very densely punctate, the beak twice as long as the head and three-fifths as long as the prothorax, viewed anteriorly nearly twice as long as wide. Prothorax about as long as wide, feebly constricted near the apex:; sides subparallel and very slightly arcuate; apex broadly, feebly arcuate and but slightly narrower than the base; punctures rather fine but deep, perfo- rate, somewhat sparse ; median line obsolete. Hlytra one-half wider than the prothorax and two and one-half times as long, twice as long as wide, parallel and straight at the sides, obtusely ogival in scarcely more than apical fourth ; humeri right, blunt; disk with entirely unimpressed series of large oblong- Coleopterological Notices, IV. 695 elongate subbilobed punctures ; intervals flat, but slightly wider than the serial punctures, each with a single uneven series of minute, feeble punc- tures. Under surface throughout rather finely but deeply and somewhat densely punctate. Length 2.8 mm.; width 0.9 mm. _ Minnesota. Easily distinguishable from any species of Rhyncolus by its de- pressed form, narrow beak and prothorax, and pubescent surface. APOTREPUS 1. gen. A single species again constitutes a genus which is without any close ally in our fauna. Body stout, subcylindrical, moderately convex, the elytra wider than the prothorax, the scutellum distinct; upper surface setose. Head short, broad, cono-globose, not conspicuously separated from the beak. Beak rather short, robust, parallel toward base but dilated toward apex. Eyes situated at the sides, partially on the beak, distant from the prothorax, feebly convex and rather prominent, somewhat coarsely faceted. Antenne inserted at the middle, the scrobes deep, linear, obliquely descending to the lower limit of the eyes; scape robust; funicle long, 7-jointed, the two basal joints equal, each longer than wide and longer than three to seven, which are subequal in length, gradually thicker, obconical, submoniliform, the articulations strongly marked; club oval, densely but coarsely pubescent, abrupt, fully as long as the preceding four joints, not annulate. Anterior coxe small, re- mote, separated by fully their own width; intermediate still more widely separated. Metasternum long. Legs rather long but somewhat stout, the tibie parallel, with a small internal spur and well-developed external uncus at apex; tarsi rather long, the basal joint nearly as long as the next two, third feebly dilated, fourth but slightly longer than the preceding two com- bined. Apotrepus is related to Caulophilus latinasus perhaps more closely than to any other North American species, resembling it in general form of the body, but differing greatly in its shorter beak dilated near the apex, in its smaller eyes, longer second funic- ular joint, and in the sparse bristling and setiform vestiture. A. demsicollis n. sp.—Black, the antenne and legs feebly rufescent, rather shining, the sete short, stiff, erect, forming an uneven single line on each elytral interval. Head very short, finely, sparsely punctate, the beak nearly straight, densely, subrugosely punctate, more than twice as long as the head and separated therefrom only by a very broad transverse impres- sion, from the anterior margin of the eyes to the apex one-half as long as the > prothorax, not twice as long as wide viewed anteriorly. Prothorar about as long as wide, broadly, strongly constricted behind the apex, the sides feebly 696 Coleopterological Notices, IV. convergent and distinctly arcuate ; apex three-fourths as wide as the base; disk rather coarsely deeply and extremely densely punctate, the punctures polygonally crowded, without median line. lytra one-third to two-fifths wider than the prothorax and rather more than twice as long, two-thirds longer than wide; sides parallel and nearly straight in basal two-thirds, then gradually rounded convergent and sinuate to the apex; humeri right, narrowly rounded ; strize coarse, feebly impressed, coarsely deeply and ap- proximately punctate, the intervals about as wide as the strial punctures, scarcely perceptibly punctate. Under surface rather coarsely, densely punc- tate, the abdomen more finely and sparsely so. Length 2.8-3.0 mm.; width 1.0 mm. Arizona. Two specimens. PSEUDOPENTARTHRUM Woll. This genus was founded by Wollaston upon a small species from Mexico, resembling Phleophagus, and with the anterior coxe ap- proximate as in that genus, but having the antennal funicle 5-jointed. It is distinguished from Pentarthrum by its much less distant an- terior coxe and more abbreviated cylindrical form. I now assign to it two other species, having the beak very short, thick but parallel, not constricted at base, though sometimes separated from the head by a broad feeble transverse impression. Eyes moderately devel- oped, feebly convex, finely faceted, situated at the upper part of the sides and conspicuous from above; scrobes horizontal, deep, ending at quite an appreciable distance in front of the eye and there flexed abruptly downward. Antenne inserted at basal third, thick, the basal joint of the funicle large, two to five transverse, parallel, sub- equal, closely coarctate, the club continuous with the funicle, and, together with joints two to five, strongly compressed. Scutellum distinct. Metasternum rather long. Anterior cox closely approxi- mate. Legs short, robust, the tarsi stout with the third joint but slightly wider than the second, the fourth not as long as the re- mainder, arcuate and very slender. Pseudopentarthrum differs from Pentarthrinus in its shorter, more parallel form, relatively larger prothorax, in the greater distance between the antennal scrobes and the eye, in the more compact and compressed antenne, with the club not abrupt, and in its stouter legs. ‘The species may be separated by the following characters :— Beak not separated from the head by a pronounced transverse impression ; larger species, the pronotum highly polished...................rOoDvUStUMm -Coleopterological Notices, IV. 697 Beak separated by a broad transverse impression; head and basal parts of the beak finely, remotely punctate, the remainder of the beak densely so ; PoP MUTT CLIT nie stetac snicdioesiose vse ties, sceloaccas cal ooe ode sduee ogcinsooe coe evs o> SEEM DILOX P. robustum 0. sp.—Robust, cylindrical, the elytra perfectly parallel and a little wider than the prothorax, polished, black and glabrous through- out. Head rather finely but deeply, not densely punctate; beak thick, finely punctate, not separated from the head by a transverse impression, two-fifths as long as the prothorax ; scrobes not extending to the eye, rectangular ; antenne inserted at basal third, first funicular joint large, wider than long, rather longer than the next two, second concealed partly within the apex of the first, apparently shorter than the third, two to five coarctate, forming a thick com- pressed mass, the club scarcely at all wider or thicker and forming, nearly a prolongation of the funicle. Prothorax about as long.as wide, broadly rounded on the sides, constricted behind the apex, the latter three-fourths as wide as the base; punctures coarse, deep, perforate, separated by about one-half of their own diameters, with a polished impunctate central spot. Scutellum rounded, slightly tumid. Llytra one-half longer than wide; strie deeply impressed, coarsely deeply and closely punctate; intervals two to three times as wide as the strial, punctures, convex. Under surface coarsely, closely punc- tate, the abdomen more sparsely SO, and more finely, except at base. Length 3.7 mm. ;. width 1.3 mm, Texas (Austin). Sea patie The single specimen. is of undetermined sex. P. simplex n. sp.—Cylindrical, moderately stout, black, glabrous, the pronotum subalutaceous. Head very finely, sparsely punctate; beak finely, closely punctate except toward base, separated from the head: by a rather deep wide transverse impression, which is very sparsely punctate and minutely, obsoletely foveolate, thick, parallel, as long as the head, not one-half as long as the prothorax; scrobes deep, rectangular, not attaining the eye by a very noticeable distance; antenne inserted near basal third, nearly as in robustum, but with the joints much less transverse. Prothorax nearly as long as wide, feebly constricted behind the apex, the latter broadly arcuate and nearly four- fifths as wide as the base; sides feebly arcuate ; punctures coarse, deep, sepa- rated by much less than their own widths, without median impunctate area. Elytra parallel, barely three-fifths longer than wide, nearly twice as long as the prothorax and slightly wider; strize deeply impressed, coarsely, deeply but not very closely punctate ; intervals convex, finely, sparsely, subseriately punctate, twice as wide as the strial punctures. Under surface not coarsely but strongly, rather sparsely punctate throughout. Length 2.5 mm.; width 0.95 mm. Nebraska. avade . Allied to robustwm but differing in its smaller size, dull and not polished pronotum, relatively longer elytra with narrower intcr- vals, different structure and sculpture of the beak — antenne, and in many other features. 698 Coleopterological Notices, IV. PENTARTHRINUS 1. gen. I refer to this genus several species which have been previously assigned to Amaurorhinus Fairm. Amaurorhinus, according to Wollaston, has the scutellum obsolete, the eyes rudimentary or obsolete, the elytra oval or fusiform, the antenne inserted far beyond the middle of the beak, and the metasternum short, all of which characters are at variance with the species under considera- tion. As represented by the four species in my cabinet, Pentar- thrinus may be known by the following characters :— Body feebly subcuneiform, moderately convex, polished and glabrous, with the scutellum distinct, metasternum elongate, anterior coxe approximate, and the intermediate separated by much less than their own width. Beak very short, thick, parallel, longitudinally convex, separated from the head by a very broad transverse impression. Eyes well developed, moderately convex, at the sides of the head, distant from the prothorax and finely faceted. Antenne inserted at basal third, in deep wide scrobes which are horizontal nearly to the margin of the eye, then dilated or flexed downward ; scape short, thick ; funicle 5-jointed, the basal joint large, the others subequal in length, obconical, wider than long, the articulations distinct; club abrupt. Legs short and slender, the tarsi slender with the third joint but slightly dilated. Pentarthrinus is quite closely related to Pentarthrum and Pseu- dopentarthrum, but differs from the former in the more approximate anterior coxe, and from the latter in the abrupt antennal club. The species may be separated as follows :— Anterior coxe extremely approximate but not in actual contact; beak not impressed in basal half. Pronotum rather coarsely deeply and Corp uous punctate, with the interspaces highly polished. Elytral intervals twice as wide as the strie, flat, minutely, very sparsely and somewhat confusedly punctate in single series ............... Mittens Elytral intervals narrow, not wider than the strie, each with a single series of fine but distinct punctures, more or less confused on the sutural interval prothorax Small, s.essccaky sees eee .. parvicollis Pronotum slightly alutaceous, iaats ie fond at ennee more finely punctate; elytral intervals narrow, polished, strongly convex, with the punctures of the single series remote, excessively minute and scarcely GIS COVINA VC iermeaisecisiocslasis es va sche pesiveis;sasisien vida rentuesttanraes esnrdmaldceers ... piceus Anterior cox Ree res inoue dai Dacenuine cepauatene oan narrowly impressed along the median line in basal half or more...... atrolucens P. nitens Horn—Proc. Am. Phil. Soc., XII, 1873, p. 484 (Amaurorhinus?). Subcylindrical or feebly cuneate, moderately convex, just visibly wider behind the middle of the elytra, polished, black and glabrous throughout. Head finely, sparsely, the beak equally finely but more Coleopterological Notices, IV. 699 densely, punctate, the latter separated from the head by a broad, shallow transverse impression which is rather deeply foveate in the middle; scrobes deep; antennz inserted at basal third, the first funicular joint large, the club rather large, compressed, much wider than the outer joints of the funicle, sparsely pubescent. Prothorax scarcely as long as wide, feebly constricted and very briefly sub- tubulate at base; sides feebly convergent and broadly arcuate from near the base, still more convergent but scarcely constricted near the apex, the latter three-fifths as wide as the base; punctures strong, sparse, without distinct median line. Elytra one-fourth wider than the prothorax and two and one-half times as long, constricted near the apex, the striz feebly impressed, rather coarsely and approxi- mately punctate; intervals wide, flat, fully twice as wide as the strie, very minutely punctate. Metasternum rather finely but deeply punctate, closely and more coarsely so anteriorly, the abdo- men finely and sparsely punctate. Length 3.3 mm.; width 1.2 mm. Florida. Readily distinguishable from either parvicollis or atro- lucens by the much broader elytral intervals and the well-marked _ frontal fovea. The single specimen in my cabinet is considerably larger than the original type as measured by the author. | P. parvicollis n. sp.—Rather short and robust, subcuneate, convex, glabrous, polished and black, the legs and antenne rufous. Head minutely, extremely sparsely punctate, the beak throughout more coarsely deeply and closely so, the punctures somewhat uneven; front not in the least foveate ; eyes well developed, situated midway between the apex of the prothorax and end of the beak, the latter robust, very short, less than one-half as long as the prothorax, the antennz inserted at basal third. Prothorax small, oval, strongly convex, about as long as wide, the sides evenly and strongly arcu- ate, a little more convergent anteriorly but not in the least constricted ; apex three-fourths as wide as the base; punctures coarse, deep but not dense, somewhat uneven in distribution but generally separated by rather more than their own widths; median line obsolete. lytra two-thirds wider than. the prothorax and nearly three times as long, rather short, not twice as long as wide, very slightly wider behind than at base, obtusely ogival but not constricted in apical fourth or more; sides just visibly arcuate; humeri broadly exposed but rounded ; striz feebly impressed, very coarsely but not approximately punctate, the intervals narrow. Abdomen finely, sparsely ‘punctate, the metasternum coarsely and more closely so. Length 2.1—2.5 mm.; width 0.8-0.9 mm. Pennsylvania; Virginia. This species is easily distinguishable by its rather shorter, broader * elytra, small, oval prothorax and very coarse punctuation. My Annas N. Y. Acap. Scr., VI, Nov. 1892.—46 700 Coleopterological Notices, IV. specimens were labeled Phleophagus apionides, but the latter is evidently a widely different species, with the ‘lateral striz entire ;”’ in P. parvicollis, the ninth and tenth striz are united behind the hunieri, as in all the species of this genus.’ P. piceus n. sp.—Cylindro-cuneate, strongly convex, glabrous, piceous, the elytra polished; pronotum feebly alutaceous and minutely reticulate. Head and beak minutely and sparsely punctate, the latter parallel, convex, one-half as long as the prothorax, separated from the head by a broad, trans- verse impression, which is foveate in the middle; scrobes deep, widening be- hind; antenne inserted behind the middle, the basal joint of the funicle large, two to five transversely obconical, subequal in length, the second par- tially concealed within the apex of the first as usual; club rather large, oval, fully as long as the four preceding joints combined. Prothorax fully as long as wide, the sides subparallel, broadly arcuate, convergent and very feebly sinuate toward apex, more abruptly rounded convergent and constricted at base, the apex broadly, feebly arcuate, nearly four-fifths as wide as the base ; punctures small, sparse, separated by twice their own diameters; median line obsolete. lytra distinctly wider than the prothorax and more than twice as long, gradually slightly wider behind, the sides straight ; humeri feebly prominent, narrowly rounded ; striz deeply impressed, rather coarsely ~ but not very closely punctate ; intervals narrow, strongly convex, twice as wide as the strial punctures, each with a single series of searcely perceptible, remote punctures. Under surface finely, sparsely punctate. Length 2.6 mm. ; width 0.9 mm. Florida. | One specimen, apparently a female. The head is not much more sparsely punctate than the beak, but is almost impunctate toward base and has a small, feebly impressed frontal fovea. This species may be known at once by its fine punctuation and piceous-brown color. = P. atrolucens n. sp.—Narrow, feebly cuneate, strongly convex, pol- ~ished, black and glabrous throughout, the legs slightly piceous, the apical margin of the prothorax feebly rufescent. Head and basal half of the beak finely and very sparsely punctate ; beak longitudinally, convex, very short, two fifths as long as the prothorax, narrowly impressed along the middle in basal half, more closely punctate in apical half; antenne inserted just be- yond basal third ; eyes rather nearer the prothorax than the tip of the beak. _ Prothorax as long as wide, the sides subparallel and almost straight from be- fore the base nearly to apical third, then more convergent and quite distinctly constricted to the apex, the latter rather narrow, three-fourths as wide as the t It is probable that Phlaophagus apionides Horn, should constitute a new genus, but I cannot distinguish P. minor from the true Rhyncolus. © Coleopterological Notices, IV. TO1 basal margin, the latter much narrower than the disk, which is convex, coarsely, deeply but not densely punctate, with a smooth apical margin ; median line obsolete. lytra a little wider behind, nearly one-third wider than the prothorax and more than twice as long, three-fourths longer than wide; sides nearly straight, rounded, convergent and feebly constricted in apical third, the apex narrowly subtruncate ;. striz coarse, feebly impressed, the punctures coarse, rounded but not very close-set; intervals nearly flat, feebly elevated, but slightly wider than the strial punctures, each with a single series of fine but distinct punctures. Metasternum coarsely and closely punctured, the abdomen more finely and sparsely so. Length 2.3-2.6 mm.; width 0.7-0.9 mm. ‘ Florida (Biscayne Bay). This species differs from nztens in its smaller size, narrower form, coarser striz, larger punctures, sculpture of the beak, and rather more widely separated anterior coxe ; from pzceus it may be known at once by its color, more polished surface, and very much more coarsely punctured pronotum., Three specimens. NYSSONOTUS 2. gen. _ The principal characters distinguishing this pentarthride seuns may be stated as follows :— Body Petnndvically convex, deeply and closely sculptured, setose. Beak thick, short, parallel, arcuate toward apex, not separated from the head by a transverse impression. Antenne inserted a little behind the middle, the scrobes deep, beginning beyond the middle, thence straight and feebly de- scending nearly to the lower limit of the eye, thence abruptly transverse beneath ; scape short, as long as the first three joints of the funicle, the latter 5-jointed, the basal joint large, two to five feebly obconical, subequal, a little wider than long; club abrupt, compressed, oval, with the basal joint large. Eyes moderate, rather finely faceted, subdepressed, at the sides of the head and very remotely separated. Scutellum distinct. Metasternum long. An- terior coxz# extremely approximate, the intermediate rather widely separated. Legs nearly normal, external tibial uncus well developed, the anterior also with a short internal terminal spur ; tarsi short, thick, the third joint slightly dilated, deeply emarginate, the fourth slender, fully as long as the preceding three together. | Nyssonotus is closely allied to Pseudopentarthrum, but differs in the? obliquely descending and not horizontal antennal scrobes, in the longer beak, still more widely separated and lateral eyes, and in the stiff erect and bristling sete. N. seriatus n. sp.—Cylindrical, feebly shining, black, the upper surface throughout with very short erect stiff sete, sparsely placed but forming a 702 Coleopterological Notices, IV. single close-set series on each elytral interval. Head and beak strongly, rather closely punctate, convex, without frontal fovea; antenne feebly rufes- cent, sparsely setose. Prothorax not quite as long as wide, the sides broadly, feebly arcuate, gradually slightly convergent and not constricted to the apex, strongly arcuate near the base, the latter slightly wider than the subtruncate apex; punctures coarse, deep, extremely dense, without median line. Elytra parallel and straight at the sides, three-fifths longer than wide, distinctly wider than the prothorax and more than twice as long; humeri right, not prominent, narrowly rounded ; apex broadly, evenly parabolic, the sides not constricted ; disk with feebly impressed series of coarse, rounded, approxi- mate punctures, the intervals flat, equal in width to the strial punctures, each with a single series of much smaller but strong and conspicuous setiferous punctures. Abdomen coarsely, closely and subrugosely punctate, the meta- sternum more finely but rather densely so. Length 3.0-3.3 mm.; width iim. Texas (El Paso). Mr. G. W. Dunn. This species somewhat resembles a rather stout Rhyncolus, and may be easily identified otherwise by the coarse, dense sculpture, and erect sete. Three specimens. RHAMPHOCOLUS n. gen. Body narrowly cylindrical, glabrous, shining. Head very short, merging gradually into the beak, the latter short, gradually wider from apex to base, not separated from the head by a transverse impression. Eyes almost flat, but well developed, oval, rather finely faceted, situated at the lower part of the sides of the head, not very distant from the prothorax and but slightly visible from above. Antenne inserted at basal third, the scrobes narrow, straight, gradually descending and directed upon the middle point of the eye; scape slender, feebly clavate; funicle 7-jointed, the basal joint stouter, as long as the next three, two to seven wider than long, subequal in length, gradually wider, the articulations distinct; club abrupt, moderate in size, oval, annulate toward apex. Anterior coxe narrowly separated, the inter- mediate separated by much less than their own width. Metasternum rather long. Legs somewhat short, the femora stout; tibie slender, very minutely uncinate within at apex, the external uncus distinct ; tarsi slender, the third joint completely undilated, not at all wider than the second. Scutellum dis- tinct. The form of the beak and several other structural characters show that Rhamphocolus must be associated with Rhyncolus, but it differs notably from that genus in its much less convex and more inferior eyes, with the antennal scrobes directed upon them and not below them, in its more slender tarsi and still more approxi- mate anterior coxe. Coleopterological Notices, IV. 103 R. tenuis n. sp.—Narrowly cylindrical, convex, black, the legs and an- tenne dark brown; integuments polished and glabrous. Head and beak finely, rather sparsely punctate, the latter feebly conical, three-fifths as long as the prothorax, one-half longer than wide. Prothorax very nearly as long as wide, broadly, just visibly impressed behind the apex; sides feebly con- vergent and nearly straight from before the base to the apex, the latter broadly arcuate, subequal in width to the basal margin; punctures coarse, deep, rather close-set and uneven, without median line. Elytra but very slightly wider than the prothorax and scarcely more than twice as long, twice as long as wide, the sides parallel and straight nearly to apical fourth, then convergent and nearly straight to the narrowly rounded apex; humeri angulate and somewhat anteriorly prominent; disk with feebly impressed series of coarse deep rounded and close-set punctures, the intervals flat, barely as wide as the strie, each with a single series of fine but distinct, rather remote punctures. Under surface rather coarsely but feebly and not densely punctate. Length 2.1-2.3 mm.; width 0.6-0.7 mm. Texas (Austin). Readily recognizable by its resemblance to an unusually slender Rhyncolus. RHYNCOLUS Germ. The species of this genus vary greatly among themselves, espe- cially in the structure of the antenne and the degree of separation of the anterior coxe. The following descriptions will indicate some of these discordances. R. pallens n. sp.—Cylindrically convex, shining, pale flavo-ferruginous throughout, the head, beak and apical parts of the prothorax piceous-black. Head and beak minutely, the latter rather closely, punctate, impressed along the middle, conical, extremely short, much wider than long and shorter than the head; eyes small, rounded, prominent; autenne moderate, the scape nearly as long as the funicle, with one or two stiff erect setz on the under surface, the funicle slender with the second joint obconical, as long as wide and longer than the third, club abrupt, oval, densely pubescent and about as long as the five preceding joints combined. Prothoraz a little wider than long, feebly constricted behind the apex, the latter as wide as the base; sides feebly convergent from before the base to the apex and nearly straight; disk very finely closely punctate, without entire median line. lytra but slightly wider than the prothorax and more than twice as long, twice as long as wide; sides straight ; apex obtusely rounded ; disk with almost entirely unimpressed series of fine, rounded, approximate punctures, the series impressed on the apical declivity and the fifth also toward base; intervals flat, minutely punctate in single uneven series, about twice as wide as the serial punctures. Under sur- face very finely, densely punctate, the abdomen evenly but less densely so, the first suture deep throughout, broadly angulate in the middle. Anterior 704 Coleopterological Notices, IV. cox separated by nearly one-half of their own width. Length 2.4—-3.0 mm. ; width 0.75-0.9 mm. California (San Francisco). This is the commonest species of the middle coast regions, and is not closely allied to any other. It is represented by a large series. R. spretus n. sp.—Cylindrical, shining, dark rufo-piceous, the occiput, legs and antennal club paler, rufous. Head almost impunctate toward base; beak finely but strongly, densely punctate, very short, wider than long, scarcely as long as the head, conical, narrowly impressed along the middle; eyes well developed, moderately prominent ; antenne inserted just before the eyes, the scape not quite as long as the funicle, swollen and setose near the middle beneath as in pallens, funicle moderately slender, the second joint a little wider than long and but slightly longer than the third, club abrupt, oval, nearly as long as the preceding five joints. Prothorax slightly wider than long, the sides very feebly convergent and straight from before the base to the subapical constriction, which is pronounced but not abrupt ; apex scarcely as wide as the base; disk very finely, closely punctate, without impunctate line. Elytra not distinctly wider than the prothorax and about twice as long, three- fourths longer than wide, parallel and straight at the sides, obtusely rounded at apex, the disk with scarcely at all impressed series of large, shallow, rounded and well separated punctures, the intervals nearly flat, not wider than the strial punctures, each with a single series of minute remote punctures. Prosternum finely, densely punctate, the metasternum and abdomen toward base finely but more sparsely so; fifth segment finely, extremely densely punc- tate and dull. Anterior coxe separated by barely one-fourth of their own width. Length 2.3 mm.; width 0.8 mm. California. Related to angularis Lec., but with shorter prothorax and elytra, the serial punctures of the latter being larger, more distant and less deeply impressed, the pronotum is much more finely and closely punctate, and the beak is impressed in the middle. The first ab- dominal suture is deeply impressed and nearly straight. A single specimen. . R. dilatatus n. sp.—Cylindrical, robust, polished, dark rufo-piceous, the legs and antennal club paler. Head sparsely but strongly, the beak more finely but rather densely, punctate, the latter nearly as long as wide, conical, a little longer than the head, feebly impressed or flattened and less densely punctate along the middle; eyes small, rather feebly convex, situated much nearer the prothorax than the tip of the beak ; antenne inserted just behind the middle, the scape long but not quite as long as the funicle, gradually, strongly clavate, funicle cylindrical, the basal joint rather more robust and - as long as the next two, second distinctly wider than long and barely longer than the third, club rather abrupt but not longer than the four preceding Coleopterological Notices, IV. 705 joints, oval. Prothorax about as long as wide, the sides very feebly con- vergent and straight from before the base to apical third, then gradually a little more convergent to the apex, which is four-fifths as wide as the base; constriction fine and feeble; disk rather coarsely, very deeply and somewhat unevenly punctate, the punctures separated by about their own diameters, without impunctate line. Flytra short, just visibly wider and barely two- thirds longer than the prothorax, one-half longer than wide; sides parallel and straight, the apex semi-circularly rounded; disk with coarse, rather deep, coarsely and profoundly punctate strie, the intervals narrow but nearly flat, scarcely more than one-half as wide as the striw, each with a single series of fine remote punctures. Under surface densely punctate, the abdomen more sparsely so, the fifth segment closely. Anterior coxe large, separated by rather less than one-third of their own width. Length 3.0 mm.; width 1.05 mm. California. The type to which this isolated species is referable, differs from that of pallens and spretus very greatly in the antennal scrobes, which, in those species, are basal and nearly transverse; in dila- tatus they begin near the apex of the somewhat longer beak, de- scending thence obliquely beneath the eye; the scape, also, is gradually and evenly clavate in dzlatatus, and not swollen in the middle beneath, and the head is shorter with the eyes less remote from the prothorax. The first ventral suture is deep and straight, the next two extremely coarsely excavated but straight. One specimen. R. relictus n. sp.—Ovo-cylindrical, dark piceous-brown, the tarsi and antennal club paler. Head very minutely, sparsely, the beak more strongly, rather densely, punctate, the latter as long as the head, nearly as long as wide, parallel and straight at the sides and distinctly impressed along the middle; eyes situated nearly midway between the prothorax and tip of the beak ; antennze moderately long, the scrobes narrow, obliquely descending, ‘scape gradually thick and clavate, inserted at basal third, distinctly shorter than the funicle, the latter rather slender, the second joint longer than the third, outer joints thicker, club distinctly wider, oval. Prothorax one-third longer than the head and beak, fully as long as wide, widest at basal third where the sides are broadly arcuate, thence feebly convergent and nearly straight to the apex, which is just visibly narrower than the basal margin ; constriction feeble ; disk finely, not very deeply, somewhat unevenly and not densely punctate, generally with a feebly defined median impunctate spot. Elytra one-fifth wider than the prothorax and fully twice as long, not quite twice as long as wide; sides straight and parallel, convergent and constricted in apical third, the apex somewhat produced and narrowly, almost semi-circu- larly rounded ; disk with impressed series of rather large, very deep, well- separated punctures, the intervals feebly convex, barely one-half wider than 106 Coleopterological Notices, IV. the striz, each with an uneven series of extremely minute distant punctures. Under surface not very coarsely but deeply and densely punctate, the abdo- men more sparsely so except on the fifth segment; first suture very fine, broadly curved throughout and just traceable, the other three very coarse and deep anterior coxe separated by barely one-third of their own width. Length 2.8-3.4 mm.; width 0.8-1.1 mm. New Mexico. This species shares to some extent the characters distinguishing both the pallens and oregonensis types of the genus, having the somewhat longer uncontractile second funicular joint and the oval and wider club of the former, and the fine and feeble first abdo- minal suture of the latter. In oregonensis the club is but very slightly wider than the tip of the funicle, and the eyes are larger, more circular and decidedly nearer the apex of the prothorax. The beak in relictus is somewhat aberrant in being parallel and not conical. R. nimius n. sp.—Cylindrical, moderately stout, polished, black through- out, the tarsi and antennal club paler. Head very minutely and sparsely punctate, the beak more coarsely deeply and rather densely so, just visibly and unevenly subimpressed along the middle, conical, about as long as the head and nearly as long as wide; eyes rather large, very convex, finely faceted as usual, situated at a little more than their own length from the prothorax ; antenne short and very thick, aberrant, inserted at basal third, scrobes deep and coarse, beginning at apical third and rapidly obliquely de- scending, scape short, thick, the funicle very thick, cylindrical and equal in diameter from the second joint to the widest part of the club, the basal joint a little thicker, wider than long, with its apex excavated, the second joint deeply received in the cup-like excavation and having only a very short apical margin exposed beyond it; joints two to seven short, extremely trans- verse but somewhat compactly perfoliate, each joint being deeply concave at apex ; club not in the least wider, scarcely longer than the three preceding joints combined. Prothorax a little longer than wide, the sides broadly, almost evenly arcuate, gradually convergent anteriorly, the constriction dis- tinct; apex broadly arcuate and a little narrower than the base; disk coarsely, deeply but rather sparsely punctate. lytra not wider than the prothorax and scarcely more than three-fourths longer, not quite twice as long as wide; sides straight, apex broadly, obtusely rounded throughout, not at all constricted ; disk coarsely, deeply subsulcate, the grooves coarsely, deeply punctate; intervals about as wide as the sulci, each with a single series of fine remote punctures. Metasternum rather finely but closely punc- tate, the abdomen but slightly more sparsely so. Anterior coxe large, sepa- rated by scarcely one-fifth of their own width. First ventral suture broadly arcuate, very fine, not impressed. Length 4.7 mm.; width 1.3 mm. Coleopterological Notices, IV. T07 New Mexico (Las Vegas). The single specimen is probably a male, the abdomen having near the base, an elongate-oval, feeble impression, which is finely, extremely densely punctate and coarsely pubescent. This is one of the largest species of the genus. R. discors n. sp.—Narrowly cylindrical, black and polished; legs and antenne paler, dark rufo-testaceous. Head minutely, remotely punctate toward base, rather longer than the beak, which is feebly conical, densely punctate, not impressed and wider than long; eyes rather small but strongly convex and prominent; antennz moderately thick, the basal joint of the funicle more robust, excavated at apex and enclosing the second, with the exception of a short apical margin, two to six subequal, strongly transverse, compactly perfoliate, the seventh rather longer and wider, obconical ; club wider than any joint of the funicle but not abrupt, oval, with its basal joint composing one-half the mass, polished and sparsely setose, the remainder densely pubescent. Prothorax fully as long as wide, the sides very slightly convergent and nearly straight from just before the base to the apex, the constriction fine and very feeble; apex broadly arcuate and about as wide as the base; disk coarsely, deeply, moderately closely punctate, with a wide impunctate spot in basal two-thirds. lytra not distinctly wider than the prothorax and not quite twice as long, scarcely twice as long as wide, the sides straight; apex evenly obtusely and semi-circularly rounded; disk very coarsely, deeply sulcate, the grooves strongly punctate; intervals not quite as wide as the sulci, each with a single series of small, very remote punc- tures. Under surface rather coarsely deeply and densely punctate, the abdomen scarcely more sparsely so; first suture straight, very fine, not impressed. Anterior coxze not large, separated by one-fifth of their own width. Length 2.8-3.0 mm.; width 0.8 mm. Florida. Allied in antennal structure to nimius, but differing greatly in its small size and more slender form; the antennal club is rela- tively thicker than in nimius and the funicle gradually thicker toward apex. If the antennal funicle of these two species were not examined with great care, it would surely be pronounced 6-jointed, so thoroughly is the second joint hidden within the apex of the first. 708 Coleopterological Notices, IV. APPENDIX. I. The following remarkable genus was received too late for inser- tion in its proper place among the tribes discussed in the present paper :— SCHIZONOTUS na. gen. (Erirhinini). Body narrow. suboval, elongate aud moderately convex above, the pro- thorax flexed downward. Head deflexed, deeply inserted, not visible from above. Eyes completely wanting. Beak nearly straight, bent slightly at ‘apex and separated from the head by a distinct transverse impression. An- tenne inserted at apical third, the scrobes inferior, bounded along their upper ‘margin by an acutely elevated carina; scape robust, gradually claviform, attaining the under surface of the head; funicle 7-jointed, joints two to five gradually decreasing in length, the second rather elongate but not quite as long or thick as the first, outer joints but slightly thicker; club well devel- oped, abrupt, elongate, ovo-conoidal, gradually pointed, densely pubescent, the distinct sutures marked by dense recumbent laciniz. Prothorax oval, very oblique laterally at apex, transversely truncate at base, broadly, feebly constricted near the apex. Scutellum exceedingly minute. Elytra apparently connate, broadly, evenly emarginate at base, the latter not. receiving the base of the prothorax. Prosternum rather long, sinuate at apex, broadly, deeply excavated along the middle, the sides of the sulcus acutely elevated. Meso- and metasterna extremely short. Abdomen very long, fiat, the first two seg- ments long, separated by a very fine arcuate suture; third segment short, the second and third sutures coarse and deeply impressed ; fourth segment a little longer than the third, separated from the fifth by a very fine straight and almost obsolete suture; fifth segment much longer than the two preceding combined. Legs short but extremely robust, the femora stout, almost straight along the lower margin; tibize very broadly triangular, strongly compressed, partially fimbriate at apex; tarsi attached at the inner angle of the tibiz, short, flattened, the subbasal joints transverse, the third but feebly dilated, fourth very short, scarcely one-half longer than wide, received for about cne- half its length in the apical emargination of the third joint; claws rather long, slender, free, divergent and simple. This genus is closely related to the European Raymondionymus Woll.—which appears to constitute a subgenus of Alaocyba,—so Coleopterological Notices, IV. . 709 closely indeed, that if Wollaston (Trans. Ent. Soc. Lond., 1873) did not repeatedly state that the antennal funicle in that genus is 6-jointed, I should be inclined to regard them as identical. Besides the entire lack of eyes, thick fossorial legs, deeply ex- eavated and bicarinate prosternum, excessively short sterna of the hind body and very elongate abdomen, with the fourth suture fine and almost obsolete, Schizonotus is remarkable in having the deflexed prothorax non-conformable with the elytra at base, the base of the former being truncate or even apparently somewhat sinuate, while that of the latter is deeply emarginate, the two bases being always widely separated and exposing a large part of the mesonotum. It is not altogether surprising that Wollaston made the mistake of assigning these genera to the Cossonine; they certainly have a cossonide facies in some respects. The rostral, antennal, and pro- sternal characters, however, prove them to be aberrant members of the bagoide series. S. c#cus n. sp.—Rather dark red-brown throughout, polished, sparsely covered with short pale bristling sete, which form single series on the elytral intervals. Head finely, the beak more coarsely, sparsely punctate through- out, the beak not quite as long as the prothorax, inflexed in direction, making an acute angle with the plane of the elytra. _Prothorax rather longer than wide, the sides broadly arcuate, constricted at the sides just before the basal margin, the apex broadly arcuate and scarcely three-fifths as wide as the base; _ disk perfectly even, feebly convex above, finely but deeply, very sparsely punctate, without median line. Flytra elongate-oval, more than twice as long as wide and two and one-half times as long as the prothorax, in the middle nearly one-half wider than the latter; sides parallel and nearly straight in the middle, convergent and rounded toward base, convergent and straight or feebly sinuate in apical third, the apex narrowly rounded; basal margin acute laterally; disk with unimpressed series of rather small but deep, somewhat distant punctures, becoming coarse and deep on the inflexed flanks ; punctures of the intervals toward the suture nearly as large as those of the series, the latter becoming almost obsolete toward apex. Abdomen very _ sparsely punctate but strongly so toward base. Length 2.0-2.1 mm.; width 0.7-0.75 mm. California. A most interesting species, apparently the only completely blind eurculionide thus far recorded from North America; as might have been anticipated it has revealed itself in the subasiatic fauna char- acterizing our Pacific Coast. 710 Coleopterological Notices, IV. The two specimens in my cabinet were kindly communicated by Mr. Chas. Fuchs, who discovered them while sifting moult earth among the red-woods north of San Francisco. II. CYCLOSATTUS 1. gen. (Tenebrionide). The species which I described under the name Husattus websteri (Col. Not., III, p. 56) bas the outline and general habitus of cer- tain forms of Eusattus, but was placed in that genus without due examination of its generic characters; these I find to be very dif- ferent, and, in order that the species may be understood, it is neces- sarv to refer it to a new genus far removed from the Coniontini. It forms the second of the only two known North American generic types of the tribe Opatrumini (Col. Not., II, p. 391), the other one being Ephalus Lec. The principal characters may be given as follows :— Body very broadly, evenly oval, rather strongly convex, the margins of the pronotum broadly, and of the elytra narrowly, reflexed.° Head promi- nent at the sides before the eyes, transversely truncate at apex. Eyes trans- verse, emarginate at the middle. Anterior, intermediate and posterior coxe equally and not very widely separated, the abdominal process narrow and obtusely angulate at apex. Legs not very long but slender, the anterior tibiz with an externally produced apical process, the internal spur very minute ; intermediate and posterior with two small slender terminal spurs. Tarsi slender, short, slightly compressed, coarsely pubescent beneath, the basal joint of the posterior not quite as long as the remaining three combined. Elytra widely embracing the body, the epipleure very wide, especially toward base. Third and fourth abdominal sutures fine, vertical and coriaceous. On examination of the under surface the epipleure appear at first to attain the elytral apices, but this is not so in reality, the portion attaining the sutural angles being the narrow reflexed margin of the elytra, the plane of the under surface of which makes a strongly marked angle with that of the epipleure proper, throughout the entire extent. Mr. F. Blanchard of Lowell, to whom I am indebted for calling my attention to the fact that websterz could not he retained in Eusattus, tells me that Dr. Levette found this specimen at Pueblo, Colorado, but whether collected there or otherwise obtained he is unable to state. I see no reasonable grounds for doubting its ee ee ee ae Coleopterological Notices, IV. 711 North American origin, however, as it is no more out of harmony with the general tenebrionide fauna which surrounds it than the monotypic Ephalus of the Atlantic States. | ITT. LIPAROCEPHALUS Makl. It is somewhat singular that the true affinities of this genus should have so long escaped observation, especially as its entire lack of harmony with all other types of Pederini is so strikingly evident. Liparocephalus is a typical but highly specialized member of the tribe Aleocharini, belonging near Phytosus, and having the tarsal joints 4-4-5 in number. Ve SYNONYMICAL NOTES. In the Revision of the Stenini of America North of Mexico (Philadelphia 1884), I have created a considerable number of synonyms, these becoming evident from time to time as more extended series were compared with the somewhat meagre mate- rial which served as the basis of that memoir. A small part of the svnonymy has already been given by M. Fauvel, and I now take pleasure in bringing forward as much as I have been able to ob- serve from recent studies. S. rugifer Cas. =anastomozans Cas. This is another interesting example showing the correspondence between the arctic fauna of the summit of Mt. Washington and that of the Rocky Mts. S. vexatus Cas. = isularis Cas. . placidus Cas. = tumicollis Cas. - . villosus Cas. = jejunus Cas. . milleporus Cas. = sectilifer Cas. . difficilis Cas. = tenuis Cas. S. nanus St. =nanulus Cas. The eastern pusio Cas. is an allied but appa- rently distinct species, of narrower form and much larger head. S. humilis Er. = mammops Cas. S. rigidus Cas. = ageus Cas. The European argus is somewhat allied, but is much narrower, more parallel and less fusiform, with the abdominal segments decreasing less rapidly in width. S. brumalis Cas. (9 ) = pauperculus Cas. (4) S. gratiosus Cas. = /irsutus Cas. MDM ™M 712 Coleopterological Notices, IV. The species in the neighborhood of morio Grav. are very much confused, and, in my efforts to view a typical specimen from Europe, I have received four distinct species, in one or two cases differing radically in male sexual Ce ters. The following synonymy is however sufficiently evident :— S. morio Grav. = indistinctus and haplus Cas. The type of subgriseus represents a species quite different from morio, in the abruptly very narrow sixth ventral segment and other characters. S. umbratilis Cas. = fraternus Cas. S. pollens Cas. = patens Cas. S. reconditus Cas. = propinquus Cas. This species is stouter than the European tarsalis, and has the punctuation stronger and coarser; it also differs in male sexual characters. The differences become quite evident with the large series of both these species which I have before me. Cunadensis is closely allied but has much shorter elytra. S. callosus Er. = varipes Cas. S. punctatus Er. = dilutus and obsoletus Cas. S. hubbardi Cas. = simiolus Cas. S. lucidus Cas. = leviceps and politulus Cas. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES. VOLUME VI, 1891-92. 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The Academy has for sale a number of back volumes of the ANNALS of both series, each containing twelve or more numbers; the price per volume is Five Dollars in the old (Lyceum) series, and Six Dollars in the new (Academy) series, “By B Hanom Jacosy 7 Ps ‘d eves? by be —A A Catalogue of the Fishes of the Pasi ot st of me) ‘Rosa VIL.—Coleopteroto ea Iv. By Tuos. L. Ca Wt avr ay nt Vol: Vio INDEX a | 1804. ca | =3 2 OS M : Jeshaty ye ¢ : aceon } ine ~ ' a | ‘Gi iy Y . } ee GENERAL INDEX, The names of synonyms and of species assigned to erroneous genera are in italics; names of groups higher than genera are in SMALL CAPITALS. PAGE PAGE Abelemis petiolarts ..........0..00..0. 223) ANemone antucensis..... ce. 228 PE AMESMMEMALIS 505 Jepcccresccoesovee 447 CANAMENSIS.........00.00eeeeee 227 POMGINISUMS iscodevdewsareosss-cee 446 CAROMMMAMA, ...vcevessecscorese QUG Acamptus echinus...........0000008. 445 GUGNCO Meanie soe dodeantes secre 1 2G MUCUS Mec covicocssvescesvess, 440 VANCE CA vos ices ste aer'dea sae) 22S PNEMMEOPS GUOOUIA .ovcecerreccerreccere 38 decapetala .....cccsesessereece QTR OOM ctssNccelccticveceecsvess OO GENCONAE Ae sonicovicaviescivesrceene 2D TOMENCOGMIS cc.5ccscececevevess “OO GUMIMONGL ccc. conser ocr = QDE WGMORMMAseelcvcwsiaccssc ser ccsese 1 O01 OUSCUCULGLE cow sevnsticncdcnevcsee | QOD ROME Stites eco ccscuecetass O89 FUMATICFONG rersovesecseecvees 219 SUMPUOGANs.tsccccceveeseeesses , OO IAZMOVAANA siviccsacsevcteetwess 2O0 SPAMPMNDCSercicvices'evwescterceeers . OO grayi.. Bag binosdconassosy 21h Agriotes fUCOSUS .........scececeeeese 164 Melienarirolia:. sasevicestine | We Alzphus macilentus............... 61 MC UMASL SY Bos sececieesexsives ese” | Dol PROMI Asiefeaclaida'e sie'ss's ok b CIES 714 General Index. Anepsius delicatulus ..,..........0 TNO UAM UM Sioeececinen cosleneiessiciee Anthonomus nubilus..........0. cee Anthophylax subvittata........... Aplemeus] j.c-sn Apotrepus densicollis.. Aulobaris.. antenna Sueidavinestee Mae GUYER cislahalecs wes onemanee teins TEELAS Ous ovoisac seneeaeeemeene TDIDISIANE) 69 555 POLICES eee. cae omutaosamersiaes 696, 697 697 458 459 pen ony 217 217 466, 514 514 514, 515 173, 174| 173 173 173 173 173 702 703 687 30 30 30 30 Rhyncolus spretus... Rues ovipennis. Rutherfurd geet Ryssematus ovalis.. 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