VN) OCICS AA SLO ve Re Wyte RGA OS Ls PY ‘eee 4 ew , Ay hes nS Ranenneaise piveelenecee’s Je vee Hs) x ee DASE twats Sha! ; 3 it ie oy PM a YVR ees LY VAT) eva cetealeey i ‘ Wy apsteity bate SE 6 5 t re ek te A Seehy [4 years Fata aire Unt eo be Ay ¥ ¥ ¥ xy Meh $9, ast it oe pases] peg aie wasn aed PVA EDGY i os TAA MP) Lae tea 44 in) in " Py Lea a Heche te . My . TKK) Cat ta te eras Wad WG MAE ie Hy ‘ = a) PPG eA i he ee i, a) a VA MY eV a a8 BORE ALAA, eee A fyi Pale eA rhas COE RKOULIOK Saar AL WOR AHO Dea a wR RE BE Ce Ck ke SU LOO Ot BO Oe ip EE Ya (Vn } Ma i MN YANY bt! ie ait mt tilt nh oA i ho va i ian = = ~) s| ~ POA PIP) a w e6 AL PROCEEDINGS CALIPORINGTA AUADEMY OF SOLENGKS. SECOND SERIES. 27/486 VOLENE: LV: 18938-18904. San Francisco, 1895. Committee of Publication: H. W. HARKNESS. GULIAN P. RIXFORD. CARLOS TROYER. Epitor: FRANK H. VASLITY. TABLE OF CONTENTS. PAGE ASHMEAD, WiLtL1AM H. Some Parasitic Hymenoptera from Lower GHITKONAME w, Sogdian wlacad podoua aco Moo eS onoed Cea Emon or 122 BRANDEGEE, KATHARINE. Studies in Portulacacew. ................ 86 Shrinhiss sh, (OCHO NI do pocsecapoos soOnoo coos Oss Hoes Sucar 173 CALvERT, Puitip P. The Odonata of Baja California............... 463 CRAMER, FRANK. Description of a Little Known Agonoid Fish, Hip- PocephalUssaPOMIGUH. 4... 4.2) emie alist) eco ets ae 147 Cooper, J. G. On Land and Fresh Water Mollusca of Lower Cali- Homey INOa tba ea crammed oes Oe OL Bebac tans neo oom adc 130 On Some Pliocene Fresh Water Fossils of California .......... 166 Eastwoop, Auice. Two Species of Aquilegia from the Upper Sonoran Fonerot ColoradorandaUtaltrcue woeeise rere e sere sie 559 Fox, Witt1aAm J. Report on Some Mexican Hymenoptera, Principally aon Won cere CLVMNGNAMEy HAAG Uc dem ened asubon doaubooHOT 1 Second Report on Some Hymenoptera from Lower California, [MEGS COMM ee erates re terae tere ec se aie ates ay ereba pyc tole colt at sa) casera eet 92 Harriey, Ftora. Description of a New Species of Wood-Rat from INAVAD OY! sae soto oto Dad Book Detbe Sold nop ese e Sb ord ac 157 Hotes, SamuEL J. Notes on West American Crustacea............ 563 Horn, Georce H. The Coleoptera of Baja California............... 302 JorpaN, Davip Starr. Description of Evermannia, a New Genus of Groliwonel MIVSS oooug domes sonaoo SaounonondouneodcuoS 592 JorpaN, Davip 8. and CuaRites H. Giieert. Description of a New Species of Ribbon Fish, Trachypterus Rex-salmonorum, Teg soo [SHHay JMEANONSKCO, eo bon dosede oe cone a cacs somanous 144 Merriam, C. Hart. Descriptions of Four New Pocket Mice from Lower California, collected by Walter E. Bryant......... 457 PERGANDE, THEO. Ona Collection of Formicide from Lower Califor- Mfay AT CaS OO TAN AVLOKAGO! ss. y2.oe 21s eh jeraire fuciehel elaine o)e/* selene’ 26 Formicida of Lower California, Mexico............%.......... 161 Price, W. W. Description of a New Wood-Rat from the Coast Range Gu (Ceimrinnll Ghibhieiiteysn oh hae Sebo ccs ap oaccianD oO cee 154 Rirrer, Witt1AM E. Tunicata of the Pacific Coast of North Amer- ica. I.—Perophora Annectens n.sp...........-. -.... 37 ll TABLE OF CONTENTS. TownseEnD, C. H. Tyter. On the Diptera of Baja California, Includ- ing Some Species from Adjacent Regions......... ..... 5938 Unter, P. R. Observations upon the Heteropterous Hemiptera of Lower California, with Descriptions of New Species. .... 223 Van DenspurGH, Joun. Descriptions of Three New Lizards from California and Lower California, with a note on Phryno- Boma Blainvillit’..2ci.5. cieca1 0 cececs terete etalk etek erate eee 296 Notes on Crotalus Mitchellii and ‘‘ Crotalus Pyrrhus”......... 450 Phrynosoma Solaris, with a Note on its Distribution.......... 456 Vopvcrs, A. W. Notes on Paleozoic Crustacea No. 4.—On a New Trilobite from Arkansas Lower Coal Measures.......... 589 BROCEEDINGS isis ei cesr ste eres encbeieie: | cine Gace ce, tele yore hielo oeret hentai nae 621 IVINS UX st aS gd aye tat Sete, Slaue Pate erR'Si8 Sie 4 Sia ae oust ue oie re aWeuehe eRe seein ere en ee 643 List oF PLATES. I-III. Perophora annectens. IV. Lewisia Kelloggii. V-VI. Lower Californian Mollusca. VII-VIII. Coleoptera of Baja California. IX. Trachypterus rex-salmonorum. X. Hippocephalus japonicus. XI. Neotoma californica. XII. Neotoma albigula. XIII. Neotoma mexicana : XIV. Pliocene fresh water fossils. XV-XVII. Odonata of Baja California. XVIII-XIX. Aquilegia ecalcarata; Aquilegia micrantha. XX-XXI. West American Crustacea, INSEL DADISOIONM ES —— OR CALIFORNIA ACADEMY ——— 0 = — Sea INU. SS. REPORT ON SOME MEXICAN HYMENOPTERA, PRIN- CIPALLY FROM LOWER CALIFORNIA. BY WILLIAM Jj. FOX. The collections on which this paper is based were made principally throughout Lower California. I say throughout, as collections were made, beginning at San Quintin in the north, to San José del Cabo in the ex- treme south, as well as in divers localities in the east and west, such as Magdalena Island and San Juan. The collection as a whole, though not very extensive, is, in my opinion, one of the most important that has ever been brought from that region, as not only do the specimens bear the precise locality in which they were collected, but have the date of capture as well, which, as every en- tomologist must admit, is not only interesting but import- ant. To Mr. Gustav Eisen, of the California Academy of Sciences, my thanks are due for the opportunity of examining these collections, and who collected those spec- imens from SanJosé del Cabo and Hermosillo, Sonora. The remainder were collected by Mr. Chas. D. Haines, who deserves credit for the neat and careful way in which he has prepared his specimens. My thanks are also due Mr. Wm. H. Ashmead and Mr. Theo. Pergande, of 2p S=R., Vou. IV. September 14, 1893. i) CALIFORNIA ACADEMY OF SCIENCES. Washington, D. C., for determining the Parasitica and Formicidae. (The latter will be found in a separate paper by Mr. Pergande.) I might state that several species of the smaller bees, which are evidently new, I have re- frained from describing, as a lack of Mexican material renders their identification ambiguous. TENTHREDINIDA. Prenus sp. El Paraiso, L. Cal. (//aznes). May. NEMATUS (?) sp. Same locality as the preceding. ICHNEUMONIDZ. ENICOSPILUS (OPHION) GLABRATUS Say. Comondu (Haines) March, and San José del Cabo, L. Cal. (sez). 1é and 2 females. ENICOSPILUS (OPHION) PURGATUS Say. Margarita Island, L. Cal. (Afaznes). March. Two females. LIMNERIA Sp. One ?. San Quintin, L. Cal. (/aznes). May. AGRYPON sp. San Julio, L.-Cal. (f/ames). Apmil Ome ?*. EIPHOSOMA AZTECA Cress. One ¢. Comondu, L. Cal. (Haines). March. EXETASTES FUSCIPENNIS Cress. Two females. Mar- garita Island, L. Cal. (A/aznes). March. Exocuus sp. One broken ¢. Comondu, Ua @ar (flatnes). March. CRYPTUS CALLIPTERUS Say. Two females, 13 males. San Quintin, San Borgia and El Paraiso (/Zaznes). May. BRACONID. IPHIAULAX (BRACON) MONTIVAGUS Cress. Two males. San Julio, L. Cal. (Afaines). April. IPHIAULAX (BRACON) EURYGASTER Brullé. One male. San Quintin, L. Cal. (Haznes). May. HYMENOPTERA FROM LOWER CALIFORNIA. 3 BRACON spp. Four species not identified, trom several localities (//azves). RuyssAtus sp. One 6. Margarita Island, L. Cal. (Haines). March. CAINOPHANES spp. Three species of this genus, not identified. El] Paraiso (flares). May. RuoGas ATRICEPS Cress. Margarita Island, L. Cal. (Haines). May. APANTELES spp. Two species. Margarita Island and San Julio, L. Cal. (/faznes). Acatuis sp. El] Rosario, L. Cal. (Haines). May. MIcRODUS ANNULIPES (?) Cress. Magdalena Island, L. Cal. (Haines). March. Of this specimen Mr Ash- mead writes: ‘‘I am not entirely satisfied the specimen named here as Microdus annulipes Cr. is really that species, although it agrees fairly well with the description, except that the second segment is usually black. It is probably a variety.”’ CRATOSPILA MEXICANA Ashm. n. sp.* CHALCIDIDZA. CHALCURA CALIFORNICA Ashm. One 2. Comondu, ie Cale (CHacves).. March. EurRyYTOMA spp. Two species of this genus. San Jorge and San José de Gracias (/faznes). March and April. SMIGRA BIOCULATA “Cress. One 6. San LInis, L. Cale Caines). April: Torymus sp. One 2. No precise locality (//aznes). Torymus Harnest Ashm. n. sp.T * The description of this species will be published later. t The description of this species will be published later. 4 CALIFORNIA ACADEMY OF SCIENCES. CHRYSIDIDZ. CHRYSIS SONORENSIS Cam. One specimen. San Este- bamjelee Cals ~CAlaznes). uApiil. CHRYSIS SELENIA Costa. Six specimens. San José del Cabo (£#zsew) and Comondu, L. Cal. (/faznes). March. PARNOPES CHRYSOPRASINA Sm. Although this species was described from North Caro- lina and to my knowledge has not been recorded from any other locality, I feel compelled to refer a specimen from San Borgia, L. Cal. (/famnes) May, to it, as the specimen fits the description perfectly. It seems to me that Smith has probably given an erroneous locality for this species. Should this specimen prove not to be chrysoprasina, then it is a new species, as it is distinct from both Kdwardsi and fulvicornis. MUTILLIDA. SPH £ROPHTHALMA oORCUuS Cress. Five females. Santa Maria, L. Cal. (Afaznes) May; Hermosillo, Sonora (£7- sen) April. ‘The pubescence on abdomen of this species varies from fulvous to bright carmine. SPH4#ROPHTHALMA SACKENII Cress. One ¢. San José del Cabo, L. Cal. (#zsez). SPHZROPHTHALMA MAGNA Cress. Fourfemales. San José del Cabo (#7sex) and San Esteban, L. Cal. (Haznes) April. SPHAROPHTHALMA ERUDITA Cress. San José del Cabo, E..i@al. (Zzsen). ~Onexemale: SPHZROPHTHALMA GLORIOSA Sauss. San Esteban, April, and San Borgia, May (//azves), San José del Cabo (Eisen). This species seems to have been overlooked by previous authors as it is neither in Blake’s Monograph of the Mutillide, nor in Cresson’s ‘‘ Catalogue.’’ It is HYMENOPTERA FROM LOWER CALIFORNIA. 5 related to Sackenz?, from which it will be at once dis- tinguished by the reddish body-color. PHOTOPSIS CASTANEUS Cress. El Paraiso, L. Cal. (Haines) May. PHOTOPSIS NEBULOSUS BI. Five specimens. El] Pa- raiso, May, and Calmalli Mines, L. Cal., April (AZaznes). These specimens are very large for this species. PHOTOPSIS GLABRELLUS Cress. San José del Cabo, L. Cal. (Zzsen). One specimen. PHOTOPSIS INCOoNsPICUUS Bl. Margarita Island, L. Cal. (Haines). March. One specimen. Puotopsis spp. ‘Twospecies, not identified. Comon- du (March) and Calmalli Mines, L. Cal. (Haznes). Puotopsis Nokomis Bl. Two specimens. San Jose delGabpo, L.Cal--( Azer). Lhe color of the abdomen in this species varies from dark ‘* honey-yellow ”’ to black. PHOTOPSIS NIGRIVENTRIS N. sp. 6 .—Head scarcely as wide as the thorax, hind angles rounded; vertex with strong, sparse punctures, those on the front closer and not quite so strong; ocelli large and prominent; scape punctured; mandibles strongly punc- tured at base, which is produced outwardly into a strong angular lamina or tooth. Clypeus strongly depressed: thorax with coarse punctures, those on the prothorax, metapleure: and scutellum more or less confluent and those on dorsulum sparsest; the metathorax covered with large fovee or pits, the base with a strong ridge medially, extending about one-fourth the length of the metathorax, on each side of this ridge there is a somewhat oblique and shorter ridge; legs not at all spinose; abdomen fusiform, the first segment above with strong, separated punctures, beneath on same segment the punctures are stronger and confluent, dorsalsegments 2-6 with fine punctures, which 6 CALIFORNIA ACADEMY OF SCIENCES. are sparsest on second segment, ventrally these seg- ments are more strongly punctured, particularly on the second segment; wings subhyaline, stigma brown, nerv- ures yellowish, with two submarginal cells (there is, however, faint traces of a third); head and thorax of a ferruginous brown, the antennz, palpi, tegule and legs honey-yellow; abdomen, except first segment, which is colored like thorax, and the ocellar region, black; man- dibles with long golden hair, the rest of the insect with long, rather dense, pale pubescence; segments of ab- domen at apex with a fringe of short, white pubescence ; the last dorsal segment with brown pubescence. Length, 16-18 mm. Two specimens. San José del Cabo, L. Cal. (4zsez). PuHotopsis BLAKEII n. sp. 6 .—Head scarcely as wide as the thorax, hind angles rounded; vertex with strong, sparse punctures, those on the front not much closer nor feebler: ocelli large and prominent, the hind pair situated in strong pits; scape punctured; outer margin of mandibles, with exception of a slight emargination in middle, entire; thorax with coarse punctures, those on prothorax and mesopleure more or less confluent; scutellum with strong and not confluent punctures; metathorax covered with large pits or fovee, the base with a strong ridge medially, which extends over one-third the length of the metathorax, on each side of this ridge there is a much shorter, oblique ridge; legs not at all spinose; abdomen fusiform, the first segment with feeble and sparse punctures; the remaining segments seem to be impunctate; ventrally the second segment has a few scattered punctures; wings subhyaline, nervures and stigma honey-yellow: two submarginal cells; head, thorax and abdomen of a ferruginous brown, the antenne, palpi, tegule and legs honey-yellow: ocellar region and HYMENOPTERA FROM LOWER CALIFORNIA. 7 sides of abdomen faintly blackish; the whole insect is clothed with a long, pale pubescence; segments of ab- domen not fringed. Length, 16 mm. Two specimens. San José del Cabo, L. Cal. (#7sev). In one specimen the ridges on metathorax are very short. BRACHYCISTIS gen. nov. General appearance of Photopsis. Width of the head variable. Eyes large rounded-ovate, their inner margin sinuous. Ocelli large, prominent, placed in the form of a triangle. Antenne long, 13-jointed, situated very low down, its scape and pedicellum united shorter than first joint of flagellum. Mandibles strong, tridentate at apex. Pronotum situated far below level of dorsulum, which ts very strongly convex; wings ample, st7zgma large, one very short, truncate marginal, which has a short appendicu- lation at apex; three submarginal cells, the second of which is usually triangular and sometimes petiolate, ve- current nervures received by the second and third submar- ginal cells. Legs not spinose, the middle tibia with one spur, their coxe tolerably well separated. ‘Tarsal claws curved, unarmed. Abdomen elongate, the form of the first segment varying from petiolate to sessile with the second segment, at the apex there is a single strong curved hook or spine, which projects beyond the seventh ventral segment and curvesupward. Size variable, 6-15 mm. Type, B. petzolatus n. sp. This genus, the 4 only of which is known, as is like- wise the case with several other allied genera, looks on first sight to be Photopsis, but the larger stigma, the re- current nervures being received by second and third sub- marginal cells and the one-spurred middle tiba, will at once distinguish it. The sculpture is much less strongly marked than in Photops7s, some species being very smooth 8 CALIFORNIA ACADEMY OF SCIENCES. and glabrous. Into this genus will fall the following species of Photopsis: P. ampla Blake, nztida Cresson, alcanor Blake, atrata Blake, sobrina Blake, /epida Blake, castanea Cresson and glabrella Cress. and the following new species: BRACHYCISTIS PETIOLATUS N. sp. 6 .—Black, the antennz, mandibles, tegule and legs except coxe and hind femora medially, pale-testaceous; the pro- and metathorax, first segment of abdomen, coxe and hind femora medially, castaneus; the whole insect is sparsely clothed with long, pale-fuscous hairs; dorsulum indistinctly punctured, the mesopleure distinctly so; metathorax coarsely granulated or roughened, impressed medially, the sides smooth: wings hyaline, stigma pale testaceous, marginal cell very narrow, second submar- ginal cell with a long petiole; abdomen petiolate, the first segment or petiole thickened to the apex and is coarsely punctured. Length 7-8 mm. . Fourteen specimens, Calmalli Mines, L. Cal. (/Zaznes). April. SCOLUDZ. MyZInE sp. Eight ¢ specimens of a species related to MZ. fuliginosus. San José del Cabo, L. Cal. (£zsen). PARATIPHIA ALBILABRIS Spin. Three female and fifteen male specimens, collected by Haines, Calmalli Mines and San Julio, L. Cal. (April), San Borgia (May). The male is very variable in size. SCOLIA BADIA Sauss. San José del Cabo, L. Cal. (Eisen). One female. ELiIs TOLTECA Sauss. About two hundred specimens of this species, evidently all females. It varies greatly in size, from 13-24 mm. Saussure gives measurement of one specimen as 28 mm. HYMENOPTERA FROM LOWER CALIFORNIA. 9 POMPILIDZ. PompiLus a:THIOPS Cress. Two female specimens. El Paraiso, L. Cal. (aznes). May. POMPILUS TENEBROSUS Cress. San Jorge, L. Cal. (Haines). March. Two females. PLANICEPS CONCOLOR Sm. Two females, which I refer doubttully to this species, as they are much larger than the measurements given by Smith, although otherwise agreeing with the description. San Julio and Magdalena Island, L. Cal. (Hanes). March and April. MYGNIMIA MEXICANA Cress. San Julio, L. Cal. (Haines). April. One small female. PEPSIS ORNATA Lep. San José del Cabo, L. Cal. (Eisen). One male. PEPSIS RUBRA Drury. Ten females, five males. San José del Cabo (£Zvsex), and Calmalli Mines, L. Cal. (Haines), May; Hermosillo, Sonora (Z7sen), April. SPHECIDZ. SCELIPHRON LUCa Sauss.. San José del Cabo, L. Cal. (Z£vsen). Three females, one male. SCELIPHRON (Chalybion) c#RULEUM Linné. San José del Cabo, L. Cal. (#7sen). One male. SCELIPHRON (Chalybion) ZIMMERMANNI Dhlb. San José del Cabo, L. Cal. (#7zsen). One female. AMMOPHILA VARIPES Cress. Three females. San Quintin (May), San Esteban and Lower Purisima, L. Cal. (Haines). April. One male, San José del Cabo, L. Cal. (Z7zsen). AMMOPHILA LUCTUOSA Sm. Two females. San Jorge, L. Cal. (Haines). March. SPHEX CALIGINosus Er. One female. Hermosillo, Sonora (Z7sen). April. IO CALIFORNIA ACADEMY OF SCIENCES. SPHEX (/sodontia) ELEGANS Sm. San José del Cabo, Cal. (Zzsex): “One female. TRYPOXYLON sp.? A species related to 7. clavatum Say, but the hind tarsi are entirely black. Calamujuet, iE Cal. (7Zaznes) 7 May. STENIOLIA DUPLICATA Prov. (=scolopacea Hdl.) San José del Cabo (#zsen), Magdalena Island, March, Lower Purisima and San José de Gracias, April (Hfaznes). The size and markings seem to vary considerably in this species. MoNEDULA SPECIOSA Cress. One male. El Paraiso, iCall, (anes). May: MoNEDULA MAMMILLATA Hand. I very doubtfully refer three male specimens from Lower Purisima, L. Cal. (/faznes) April, to this species. While agreeing tolerably well with the description of mammillata, yet the markings on abdomen are different, and when the locality of mammzllata (Georgia) is con- sidered, I scarcely think these specimens are that species. For the present, however, I can do nothing more than re- fer them to it. BEMBEX OCCIDENTALIS N. sp. ? .—Black, the head, thorax and first abdominal seg- ment rather densely clothed with ashy pubescence, which is longest on front and vertex; clypeus, labrum, man- dibles except tips, inner and posterior orbits, scape ex- cept black line above, flagellum beneath, prothorax ex- cept the middle anterior portion above, tubercles, large, somewhat angular mark on mesopleure, a smaller spot behind it beneath the wings, greater part of tegule, a line on each extreme side of the dorsulum, narrow line on posterior portion of scutellum and post scutellum, that on the former formed into a spot on each side, a transverse, HYMENOPTERA FROM LOWER CALIFORNIA. at curved line, extending from side to side at apex of upper face of metathorax, large spot on metapleura which is emarginate above, legs entirely, including the coxe, a broad fascia on abdominal segments 1-5, that on the first greatly narrowed medially, that on the second scarcely narrowed, but enclosing two transversely-ovate black spots, on third, fourth and fifth segments the fascie have two strong emarginations on anterior margin and a weaker one on posterior margin in the middle, sixth dorsal seg- ment entirely and fascize on ventral segments which (the fascie) are more or less variable, all sulphur-yellow; wings clear hyaline, nervures brownish; antenne rather long, reaching beyond the tegule, the first joint of flagel- lum fully as long as the second, third and half of the fourth united; clypeus and labrum indistinctly punc- tured; thorax microscopically punctured; posterior face of metathorax with a large triangular depression at top; tibiz and tarsi strongly spinose; anterior tarsi with a well developed comb, the spines of which are shortest basally, the longest spines equal fully the length of the first joint; abdomen very finely shagreened. Length 21-23 mm. 6 .—Markings and coloration similar to the female, al- though the coxe and trochanters are more or less black; antenne scarcely reaching beyond tegule, joints 7-9 dentate beneath; legs armed as in the female; second ventral segment with a strong, longitudinal central keel, which is more prominent apically; sixth ventral with two approximate teeth, which, when viewed from the side, appear as one. Length, 20-21 mm. Reno, Nevada (//7//man); California (coll. Am. Ent. Soc:), and San José del Cabo, L. Cal. (Zzsen). Related to and closely resembles B. nudbilipennis Cress., from which it usually can be distinguished by the hyaline wings: I2 CALIFORNIA ACADEMY OF SCIENCES. however, the wings of xabz/cpennis are sometimes hyaline, so too much reliance must not be placed on that charac- ter. The greater length of the antenne and longer tarsal comb will help in separating the females, while the form of armature on ventral segments two and six will dis- tinguish the males. BremsBex Luc Cress. El Paraiso and San Borgia, L. Cal. (Hames). May. This species seems to be unde- scribed, the name Luce being a manuscript one. GORYTES EXIMIUS Prov. Onefemale. El Paraiso, L. Cal. (//aznes). May. MASARIDZ. MASARIS MACULIFRONS N. sp. ¢.—Head and thorax with coarse, close punctures, having the appearance of being granulated, the punctures most distinct on the prothorax above and on the dorsulum anteriorly; abdomen with exceedingly fine and close punctures; marginal cell truncate at tip; deep black, sub- opaque; a large semi-oval spot on clypeus at base (the sides of the spot are emarginate), a pyriform spot just above the insertion of antenna, a spot in the eye emargin- ation, posterior orbits narrowly, an oblique elongate mark on each shoulder, posterior margin of pronotum, outer margin of tegule, large spot on mesopleure, spot at apex of scutellum, and the angles of the metathorax whitish; abdominal segments 1-5 above with their apical margins whitish, that on the first, second and third seg- ments interrupted on each side of the middle, so that it represents three separate marks or spots, the laterals of which are largest, ventrally the second segment has a small spot on each extreme side, the third with a medially interrupted fascia at apex, and the fourth with four small spots, all whitish; the head and thorax are clothed with HYMENOPTERA FROM LOWER CALIFORNIA. 1 34 a short, erect pale-fuscous pubescence, wings subhyaline, fuscous in places, iridescent, stigma ferruginous, nervures black; tibiz and tarsi more or less ferruginous. Length, II mm. El Paraiso, L. Cal. (Haines). May. Related to ™. marginalis Cresson, from which it may be distinguished by the spots on clypeus and scutellum, and by the coarse sculpture of head and thorax. From the other North American species, the white ornamentation will distin- guish it. EUMENIDZ. ODYNERUS TOLTECUS Sauss. Hermosillo. Sonora. April. (#zsen). One 6 specimen. ODYNERUS MYSTECUS Sauss. San José de Gracias, L. Cal. (Hammes). April. Two specimens 2 ¢. The 2 differs from Saussure’s description in having two ‘free spots ’” on second abdominal segment. ODYNERUS sp. Two specimens of a species related to mystecus. Hermosillo, Sonora (# sen). April. ODYNERUS SAUSSUREI n. sp. ? .—Clypeus pyriform, with a few coarse punctures, strongest towards middle; the clypeus has also some coarse, longitudinal folds or striw, its anterior margin with two rather widely separated teeth; front with dense, coarse punctures, which gradually become weaker and sparser towards the vertex until they disappear entirely on the occiput, the latter with a slight depression in the middle; thorax as coarsely punctured as the front, but not so closely; lateral angles of pronotum not dentate; metathorax with its concave face, with a few irregular striations, which are most distinct on apical portion, the lateral angles rather sharp; first and second dorsal ab- dominal segments, with exception of the apical border of 14 CALIFORNIA ACADEMY OF SCIENCES. the second, impunctate; the remaining segments coarsely punctured, the second ventral sparsely so; black, a curved mark around base of clypeus; anterior margin of pro- notum, two spots on each tegula, spot beneath base ot wing and the postscutellum, whitish: apical margins of first and second dorsal and second ventral segment, also whitish, that on second ventral interrupted medially; wings, with exception of the marginal and median cells, which are fuscous, hyaline, nervures and stigma black; legs entirely black. Length, 12 mm. San José del Cabo, LL. Cal. (47sen)>. Related to Megera, foraminatus and leucomelas, but is very distinct from all three. VESPIDA. POLISTES CARNIFEX Sauss. A variety of this species. San José del Cabo, L. Cal. (#7zsen). Two specimens: POLISTES BELLICOSA ‘Cress. -El Paraiso, aire ay (7lavnes). May. One-specimen. There are: in) the collection three other species of this genus, which at present I am unable to identify. ANDRENID. Hatictus spp. Two specimens, representing two species. San José de Gracias and San Jorge, L. Cal. HALICTUS DESERTUS Sm. One ¢. Lower Purisima, iCal. (Haines). April: AGAPOSTEMON sp. One 6. San Jorge, L. Cal. (Hanes). March. This species occurs also in the United States. ANDRENA spp. Two species of this genus, collected by Haines in March at the following localities, viz.: Co- mondu, El Paraiso and Margarita Island, L. Cal. HYMENOPTERA FROM LOWER CALIFORNIA. 15 APID Al. PANURGUS HALICTOIDES nN. sp. ? .—Head and thorax coppery-green, the abdomen tes- taceous; front and clypeus finely and closely punctured, clothed sparsely with white pubescence; mandibles fer- ruginous, darker at tips; flagellum beneath testaceous; the cheeks with white pubescence; punctuation of the dorsulum more distinct than that of the front; upper sur- face of metathorax depressed and covered with strong, somewhat irregular radiating ridges; the posterior face of metathorax finely punctured; the whole thorax is more or less covered with pale pubescence, which is shortest and sparsest on dorsulum and scutellum and long- est on the mesopleure; legs and abdomen testaceous, more or less clothed with the usual pale pubescence, the apical segment of the abdomen has the pubescence somewhat fuscous; tegule testaceous; wings hyaline, iridescent, nervures and stigma brownish. Length 4 mm. One specimen. San José de Gracias, L. Cal. (Haznes). April. This species resembles greatly some of the smaller green species of //alictus, but can be distin- guished from them by possessing but two submarginal cells. CALLIOPSIS sp. San Julio, L. Cal. (Haznes). One specimen, evidently a new species. CALLIOPSIS MARGARITENSIS nN. sp. ? .—Deep shining black, sparsely clothed with whitish pubescence; clypeus with large, deep and separated punctures and is tolerably well produced anteriorly ; man- dibles reddish at tips; front and face with fine punctures, those on the face sparse, while those between the antenna and ocelli are compact, the punctures also sparse on the vertex; flagellum beneath testaceous; dorsulum with 16 CALIFORNIA ACADEMY OF SCIENCES. fine, indistinct punctures, shining; scutellum lkewise and not impressed; metathorax above at base witha rather narrow transverse, curved, depression, which is rugose within; tegule testaceous; wings subhyaline, strongly iridescent, nervures and stigma brownish, sec- ond submarginal cell if anything narrowed a little less than one-half at the top; tarsi apically testaceous, their pubescence slightly brownish; abdomen with the apical margins of the segments, particularly the dorsal ones, testaceous, the last segment with subfuscous pubescence; the ventral segments are rather strongly punctured. Length, 5-5% mm. Four specimens. Margarita Island, L. Cal. (//aznes). March. Resembles very much our ornatipes and albi- tarsts, but the dorsulum is much more finely punctured than in either. PERDITA sp. One specimen. Calmalli Mines, L. Cal. (ffaines). April. PERDITA SPARSA N. sp. ? .—Head and thorax light metallic green, clothed with pale pubescence; clypeus in the middle, glabrous, im- punctate, on the sides rather strongly punctured; front with strong sparse punctures, very strongly furrowed down the middle; antennz black, the flagellum beneath testaceous; mandibles black, reddish at tips; labrum black, with a very wide, longitudinal depression in the middle; dorsulum and scutellum with distinct, separated punctures, the metathorax, at least the upper surface, smooth; legs testaceous, with pale pubescence, the apex of fore femora and the fore and medial tibiz in front, yel- low; a longitudinal, ovate mark on clypeus in middle, two smaller marks on each side of it, the inner orbits as far as their middle, two spots on prothorax above, tu- bercles and tegule, all yellowish or whitish; wings hya- HYMENOPTERA FROM LOWER CALIFORNIA. 17) line, iridescent, nervures pale-fuscous, the stigma in the middle pale; abdomen testaceous, the first segment above with two small lateral spots, the second basally with a transverse band, which is narrowed medially, the third and fourth segments with a somewhat similar band, ex- cept that it is not so narrow and is interrupted medially, all yellow, the apical segments clothed with pale pube- scence, the last segment reddish. Length, 7 mm. Var. 2.—The greater part of clypeus, sides of face, labrum, mandibles and anterior tarsi yellow; the two spots on first abdominal segment coalesce and form a narrow and sinuous band, the band on second segment not nar- rowed medially. 6 .—Much smaller than the 2; labrum, mandibles, sides of face, spot between antennz, scape and greater part of flagellum entirely, yellow; the head very finely and closely punctured; thorax more finely and closely punctured than in the female; the metathorax also finely punctured; bands on the abdomen narrower and are all interrupted medially; the apex of all the femora are yel- lowish. Length, 5 mm. Two ? andone 6. Margarita and Magdalena Islands (Haines). March. Related to a/bzpennis and zonalis, from which it differs by the sparse punctuation of the front, etc. The 4 may be distinguished from that of 8-maculata by the paler green of the head and thorax, and by the almost entirely yellow color of the antenna. PERDITA VENTRALIS N. sp. ? .—Head and thorax dark metallic green, sparsely clothed with pale pubescence; face and clypeus with fine, close punctures, the punctures becoming finer on the front and vertex; labrum with a pit or depression at base; the cheeks at the bottom are armed with a strong, blunt tooth; frontal impressed line scarcely distinct; mandibles, except 2p SmER., Vou. IV. (2) September 14, 1893. 18 CALIFORNIA ACADEMY* OF SCIENCES. tips, labrum, clypeus, a spot beneath the insertion of each antennez, and the antenne beneath, yellow; the latter above testaceous; dorsulum and scutellum glabrous, seemingly impunctate; metathorax at extreme base trans- versely roughened; tegule and greater part of four an- terior legs yellow, the hind legs testaceous; wings hyaline, iridescent, the nervures and stigma fuscous-white; ab- domen testaceous, with an irregular band on segments 2-5, which is emarginate posteriorly; ventrally the ab- domen is entirely yellow, in some specimens stained with testaceous at base and apex; the apical segments are sparsely clothed with pale pubescence. Length, 4 mm. Three specimens. Margarita Island, L. Cal. (//aznes). March. The entirely yellow ventral segments of the ab- domen will distinguish this species. PERDITA ARCUATA 0. Sp. 6 .—Head and thorax dark metallic green, sparsely clothed with pale pubescence; clypeus with rather fine, not very close punctures, its anterior margin strongly and widely arcuated; antenna separated by a rather strong ridge, which extends from base of clypeus almost to anterior ocellus; front and vertex with exceedingly fine and close punctures; cheeks rather sparsely punctured, not dentate beneath; antenne dark fuscous, dorsulum and scutellum very finely and closely punctured; tegulz testaceous; wings hyaline, iridescent, nervures and stigma testaceous; the second submarginal cell is almost triangu- lar, being greatly narrowed above; legs brownish with white pile, the fore femora at tips and tibiz in front, yellow; abdomen black, the apical margins of the seg- ments broadly rufo-testaceous; the mandibles, except tips, and the labrum are yellow. Length, 4 mm. Two specimens. Calmalli Mines, L. Cal. (/aznes). April. This species belongs to Smith’s genus, J/acrotera, which Cresson regards as a synonym of Perdta. HYMENOPTERA FROM LOWER CALIFORNIA. IQ EPEOLUS OCCIDENTALIS Cr. Two 2 and one 4 speci- mens. Margarita Island, L. Cal. (Hazes). March. ERICROCIS RUGOSA n. sp. $.—Labrum rounded anteriorly, coarsely rugose ; upper partof front and the vertex with distinct, but not deep, separated punctures; ocelli forming almost a straight line; antenne not reaching the apex of the tegule, the flagellum scarcely narrowed to the apex, joint one of flagellum a little shorter than the second, which is a little longer than the third, joints 3-9 are about equal in length, the last joint longest; dorsulum and scutellumsub-opaque, impunctate, the scutellum strongly bituberculate, the tubercles round and not dentate; legs robust, particularly the hind pair; fourth ventral abdominal segment with its apical margin somewhat reflexed. Black, the flagellum beneath reddish-brown; front, clypeus,thorax onthe sides and on the dorsulum anteriorly, three small patches on the scutellum and dorsulum, abdominal segments 1-5 with a large transverse patch on each side, either a dirty yellowish-white or tawny*, the abdominal patches are on the first segment ovate, on the second segment much narrowed medially, and broadened on outer end, as are likewise those remaining; on the thorax beneath the pubescence is whitish; legs brownish, black in spots, the tibie at base on outer side with a patch of pale pubescence: wings sub-hyaline, the apical portion, including a part of the marginal cell, stained with brownish, nervures ferru- ginous; tegule and the apical margins of the abdominal segments testaceous. Length, 12mm. Santa Maria, L. Cals (Haines). May. HERIADEs sp. San Luis, L. Cal. (Hanes). April. “The specimen having been in alcohol, leaves me in some doubt as to the original color of the pubescence. 20 CALIFORNIA ACADEMY OF SCIENCES. ANTHIDIUM CALIFORNICUM Cress. San Esteban, L. Cal. (/faznes). April. Differs from the typical form in having the pubescence on thorax pale and by lacking the yellow markings on legs. LITHURGUS OBLONGUS 0. sp. @ .—Labrum about as long as the mandibles, broadest basally, coarsely and sparsely punctured, and just before the apex bears a very strong, transverse ridge (in shape the labrum is somewhat oblong): mandibles with coarse punctures, much contracted on inner side at about the middle, the apex tridentate; clypeus produced into a broad flap-like projection, the fore margin of which is broadly emarginate, its upper surface very coarsely punc- tured and strongly furrowed down the middle; between insertion of antenne there is a strong convexity; front and vertex strongly and evenly punctured, the front more strongly so; ocelli forming a curve, placed in pits; on the vertex extending back a short distance, and dividing the hind ocelli there is a strong impression; dorsulum and scutellum punctured about like the front; first abdominal segment, the basal portion of segments 2-5, and the sixth entirely, above, with the punctuation finer than on the remainder of the abdomen. Black, the tegule yellowish-testaceous; sides of face, front behind the an- tenne, cheeks, thorax and abdomen more or less with white pubescence, dorsal abdominal segments 1-5 with a short fringe of white pubescence; ventral scopa whitish; pubescence on inner side of tarsi brownish; wings hya- line, nervures and stigma black; mandibles fringed with golden-brown hair. Length, 13 mm. San Ignacio, L. Cal. (ffaznes). April. MEGACHILE MEXICANA Cress. Six females. San José deli@abo. Cal: i( zsen). HYMENOPTERA FROM LOWER CALIFORNIA. 2 MEGACHILE. POLLICARIS Cress. One female. El Paraiso, L. Cal. (Afaines). May. MEGACHILE EXILIS Cress. One male. San Ignacio, Ie Cal. (Alaines). . April. CERATINA sp. Evidently a new species. Margarita island, t.'Cal, (A/azmes). March. MELISSODES SUFFUSA Cr. One female. San José del Cabo, L. Cal. (#zsen). There are in the collection four other species of this genus, which I have been unable to identify. DIADASIA APACHA Cress. J/elissodes apacha Cr. Proc. Meade Nats oc ehila., 1676, p. 207.- Mive: specimens. San Julio, San Esteban and San José de Gracias (April), El Paraiso (May). All collected by Haines. DIADASIA ENAVATA Cress. One male. Comondu, ieeCal. (Hames). March. DIADASIA DIMINUTA Cress. One male. San José de Gracias, 1, Cal.'( aes); “April. ANTHOPHORA MACULIFRONS Cress. One female. San José del Cabo, L. Cal. ( £zsen). ANTHOPHORA sp. San Esteban, L. Cal. (/faznes). April. A species closely allied to A. urbana Cress. ANTHOPHORA sp. San José del Cabo, L. Cal. (sez). Occurs also in California proper. A small species re- lated to A. exzgua Cr. XYLOCOPA ARIZONENSIS Cress. Comondu (March), El Rancho Viejo (April) and El Paraiso (April and May). Collected by Haines. Six females. XYLOCOPA ORPIFEX Sm. Comondu (March), El Pa- raiso (May). Collected by Haines. Seven females, one male. XyuLocopa sp. A large black species, which may be 22 CALIFORNIA ACADEMY OF SCIENCES. the aenzpennis DeG. San José del Cabo, L. Cal. (£7zsen). Twenty females, nineteen males. XYLOCOPA VARIPUNCTATA Patt. Five females, two males. This species is closely allied to the West Indian X. cubecola, but is larger, the vertex is more closely punctured and the wings of the female are darker. The 6 is as in cubeco/a entirely fulvous. San José del Cabo (Eisen) and Comondu (/fazves), March. CENTRIS LANOSA Cress. San José del Cabo (£7zsen), Calmalli Mines, April and Calamujuet, May (//aznes), and Hermosillo, Sonora (#7sen) April. This species is very likely identical with C. mexzcana Sm. CentTrRis sp. A male specimen from San José del Cabo, L. Cal. (#zsen), which is evidently a new species, but unfortunately is too poor for describing, having been in alcohol. The whole insect is covered with a dense ashy-grey pubescence. CENTRIS EISENII n. sp. ® —Black; a-transverse mark on anterior part jon clypeus, from the middle of which there extends a line nearly to the base of clypeus, sides of face, labrum and spot at base of mandibles, whitish-yellow; flagellum be- neath except first joint, testaceous; front and cheeks clothed with whitish pubescence, that on the vertex a very dark brown; dorsulum and scutellum with a brownish- yellow pubescence, darkest on anterior part of dorsulum; the thorax on sides and beneath with pubescence similar to that on the cheeks; the four anterior legs clothed with a short brown pubescence in front, behind with long whitish pubescence; scopa of posterior legs darker than the pubescence on sides of thorax and much paler than that on the dorsulum; abdomen above sparsely clothed with a short black pubescence, the second, third, HYMENOPTERA FROM LOWER CALIFORNIA. 23 fourth and fifth segments with a broad, bright yellow band; ventrally the abdomen on the sides is fulvous, the middle part black, segments two to five with a fringe of long, white pubescence; wings sub-hyaline, nervures and stigma black; clypeus strongly and sparsely punctured; labrum densely clothed with pale pubescence, which is longest anteriorly. Length, 16-20 mm: Guaymas, Mex. (/7sen). May. Resembles very much and is related to Centris fasciata Smith, from Jamaica, but is distinct in having the pygidium larger, the pubes- cence on thorax darker and the scape is entirely black. BoMBUS CALIFORNICUS Sm. El Rosario, L. Cal. (Haines). May. ‘Two specimens. BoMBUS SONORENSIS Say. San José del Cabo (£vsez) and Comondu (/faznes), L. Cal. March. Seven females and six neuters. Apis MELLIFICA Linn. San José del Cabo (£7zsen). Calamujuet, San Borgia and E] Paraiso, L. Cal. (/Taines). May. Numerous specimens. ADDITIONAL SPECIES. Since compiling the preceding paper Mr. Eisen has sent me a small collection from San José del Cabo, which contains the following additional species: NOTOGONIA ARGENTATA Bve. (=Larra argentata Bve). One 4 specimen. POMPILUS CONNEXUS DN. sp. @ .—Head {and thorax black; abdomen dark ferrugi- nous; head, thorax and legs covered with a plumbeous or cinereus pile, except the vertex, dorsulum and scutellum, the pronotum above also lacks this pile medially, the pile on its posterior margin connected with that on its anterior portion by a narrow central line of pile; wings blue- black, third submarginal cell not at all petiolate, with a 24 CALIFORNIA ACADEMY OF SCIENCES. distinct radial or marginal side, and receives the second recurrent nervure at about the middle; flagellum of an- tenne not pilose, its first joint about as long as the sec- ond and two-thirds of the third; clypeus slightly in- curved medially; posterior margin of pronotum bowed (in one specimen slightly sub-angular); metathorax with a slightly impressed line; tibiz and tarsi armed with stout spines; claws armed with an acute tooth near the base; comb on fore tarsi composed of long and stout spines, which are nearly as long as the first joint; longer spur of hind tibia equal to about half the length of the first hind tarsal joint; abdomen much longer than head and thorax united, apically with a few black hairs. Length, 14-16 mm. San José del Cabo, L. Cal. (#zsen). Two specimens. Evidently related to P. apzculatus Smith, from Vera Cruz. AGAPOSTEMON NASUTUS Sm. Three specimens. CENTRIS MUSTELINA N. sp. ? .—Head and thorax black, the abdomen and legs tawny, mandibles at base and apex yellow; clypeus, la- brum and first three or four joints of antenna also tawny; flagellum beneath, particularly towards apex, tes- taceous; head, thorax, first abdominal segment entirely, a fringe at apex of fifth segment, and likewise at apex of ventral segments, with pale ochraceous pubescence, that on the clypeus very short and appressed; mandibles fringed with long pubescence; hind tibia and tarsi dark brownish, their pubescence tawny; wings sub-hyaline, not iridescent; excluding the long hairs, the abdomen is more or less covered witha short appressed pubescence; apical ventral segment emarginate; tegule testaceous. Length, 18 mm. é .—Colored like the female, except that the most of HYMENOPTERA FROM LOWER CALIFORNIA. 2 On the clypeus and labrum is yellowish; pubescence on legs very short when compared to the other sex; sixth dorsal abdominal segment armed with a large tooth on each ex- treme side, the seventh dorsal large, subquadrate, its sides contracted, and with two strong, widely separated and slightly converging ridges, which extend from the base to near apex, the latter is slightly reflexed and black, the last ventral segment is depressed on each side, the de- pressions bounded outwardly by an oblique ridge, near the apex of this segment there are two widely separated tubercles, which are sometimes connected with the oblique ridges which margin the lateral depressions. Length, 18 mm. San José del Cabo, L. Cal. (Z#zsen). One 2 and eight 6 specimens. EXOMALOPSIS PULCHELLA Cress. One female speci- men, that seems to be this West Indian species. ON A COLLECTION OF FORMICIDA FROM LOWER CALIFORNIA AND SONORA, MEXICO. BY THEO. PERGANDE. The determination and description of Formicide can only be accomplished in a satisfactory way if large series ot specimens, taken from the colonies, are available for examination and comparison. It was with some reluc- tance, therefore, that I have undertaken the task of de- termining the small collection of ants which was brought together by Mr. Gustav Eisen and Mr. Chas. D. Haines of San Francisco, Cal. If I have ventured to describe some of the species as new, it has been done after a thorough study of the literature on the subject and after a careful comparison with the material at my command. FORMICIDE. I. CAMPONOTUS MACULATUS Fab., race OCREATUS Em. One 8 major, one & minor. San Luis and San Es- teban. This race is found as far north as the Panamint Mount- ains, Cal: The description of this new race by Prof. C. Emery will shortly be published in the Zoologische Jahrbicher. 2. CAMPONOTUS FRAGILIS N. sp. S major: Length, 7-9 mm. MHoney-yellow; posterior angles of the head, the femora and scale somewhat paler ; the face between the eyes, the clypeus, disk of pro- thorax and the abdomen above, except a broad anterior margin of the second and third segments, brownish. Scape blackish beyond the middle. Eyes black. Man- dibles reddish. Pubescence yellowish, long and slender, densest on the head, thorax and abdomen, sparse along external edge of anterior femora, with a few hairs only at the basal third or fourth of the external edge of the 2p SER., Vou. IV. September 19, 1893. FORMICID4At FROM LOWER CALIFORNIA. 2 “I median and posterior femora. A few shorter and stiffer hairs may also be observed at the apex of the femora. Appressed pubescence minute, intermixed on the scape with fine, erect hairs. Head about one-third broader than the thorax, broadest at posterior angles and gently decreasing in width towards the mandibles, emarginate behind, with the posterior angles rounded. Clypeus trun- cate in front, its median carina distinct. Surface of head and thorax densely and finely granulated and sparsely punctured. Abdomen with a still finer sculpture and somewhat transversely striated. Mandibles smooth, with scattered piliferous punctures; their apical edge with six black teeth. Antenne slender, the scape reaching a little beyond the posterior angles of the head. Scale ovoid, broadest beyond the middle, stoutest at base, slightly arcuate in front, almost straight behind. Legs long and slender. 6 minor: Length, 5-7 mm. General color somewhat paler than in the 8 major, the head and thorax without darker shadings, the abdomen either faintly brownish or only the sutures somewhat darker. Median and pos- terior femora almost white. Head about twice as long as broad, scarcely broader than the thorax; its sides parallel, rounded beyond the eyes. Antenne longer and more slender, the scape reaching nearly to the meso- thorax. It is a very delicate looking species. The % minor resembles very much that of Camp. melleus Say, though it is smaller, more delicate, with the head not emarginate. Camp. melleus differs from it also in the absence of erect hairs on the scape and in the stouter scale. This species resembles also somewhat Camp. atlantis Forel, differing from it however in the form of the cly- 258 CALIFORNIA ACADEMY OF SCIENCES. peus, which, in that species, is narrower and considerably extended beyond the insertion of the mandibles. Many specimens. ‘Taken at San José del Cabo and at San Fernando. 3. CAMPONOTUS FUMIDUS Rog. Camp. fumidus Rog., Berl. Ent. Zeitsch., vii, p. 151. One 9. San Julio: 4. CAMPONOTUS MARGINATUS LItr., var. Formica marginata Ltr., Hist. Fourm., p. 103. Camponotus marginatus Rog., Berl. Ent. Zts., 1862, p. 292. Formica fallax Nyl., Form. Fr., p. 57. Camponotus fallax Mayr, Europ. Form., p. 56. Formica discolor Buckley, Pr. Ent. Soc. Phil., 1866, p. 166. Formica San Sabeana, Buckley, ibid., p. 167. One 8. San Julio. This variety is black and polished, with the scape of the antenna and the legs dark brownish. Similar forms are found at Washington, D. C., and in Florida. This form differs from them, however, in hav- ing a distinct constriction or suture between the meso- and metanotum and in the shape of the scale. It may possibly represent a new species, though I am not pre- pared to describe it as new from a single specimen. 5. CAMPONOTUS ERYTHROPUS D. sp. % major, 5-7 mm; & minor,4—5mm. Opaque black, the abdomen slightly polished. Mandibles and anterior margin of head dark cherry-brown. Antenne, tibia and tars1 reddish, the tarsi somewhat darker; rest of legs black. In the smaller specimens the middle and posterior tibia are sometimes blackish beyond the middle. Eyes brown. Pubescence white, glistening, rather long and quite profuse. Hairs on the head above insertion of an- tennze as well as those on the thorax and base of first abdominal segment finer and more slender than those on the abdomen. Hairs in front of the insertion of the an- FORMICIDA! FROM LOWER CALIFORNIA. 29 tenne and those on the mandibles, short and stiff. Pu- bescence of the legs still shorter and more or less ap- pressed, excepting a few longer and erect hairs at the knees; a few longer hairs may also be observed on the scape of the antenne. Head of % major about one-half broader than the thorax, though but slightly broader in the % minor; shghtly longer than wide, somewhat broadest behind; its sides above insertion of the antenna almost parallel, gently curving towards the mandibles, distinctly emarginate behind in the % major, but almost straight in the & minor. Clypeus straight or but faintly emarginate in front; its median carina rather indistinct. Frontal area ‘minute, triangular. Eyes ovoid and considerably above the middle of the face, their upper edge almost in a line with the upper angles of the frontal carina; those of the % minor almost lateral. Antenna of the § major rather stout, the scape scarcely reaching beyond posterior angles of the head, more slender and longer inthe % minor. Mandibles with five or six teeth, their basal half or more finely striated, the rest smooth and with scattered pilifer- ous punctures. Head and thorax finely and densely granulated, with coarse punctures between the frontal carine and short, radiating, linear depressions on the vertex of the % major. Prothorax somewhat flattened above. Scale stout, broadest and truncate at apex, with the hind angles rounded; of equal thickness from base to about two-thirds its length; apical third inclining back- ward; the posterior face perpendicular. Abdomen with dense and fine transverse striae and scattered piliferous punctures. This species appears to be related to Camp. novogran- adensis Mayr, from which it differs, however, in its 30 CALIFORNIA ACADEMY OF SCIENCES. flattened and more angular prothorax, the stouter scale, finer pubescence and in the coloration of antennae and legs. Described from many specimens, taken at San Esteban, San Jorge, El Paraiso, San Julio, San José de Gracias and San José del Cabo. 6. MyRMECOCYSTUS MEXICANUS Wesm. Myrmecocystus mexicanus Wesm., Bull. Ac. r. sc. et bell. lett. BEUxs Vay 630; ps a1: One &. Santa Maria: 7. DORYMYRMEX PYRAMICUS Rog. Prenolepis pyramicus Rog., Berl. Ent. Zts., 1863, p. 160. Formica insana Buckley, Proc. Ent. Soc. Phila., 1866, p. 165. Dorymyrmex insanus McCook and var. flavus McCook, Cotton Ins., 1879, pp. 185 and 186. Two 8%. Magdalena Island. Differs from the typical form only in the entirely black antenne and legs. 8. TAPINOMA SESSILE Say, var. Formica sessile Say, Boston Journ. N. H. §., I, p. 287. Tapinoma boreale Rog., Berl. Ent. Zts., 1863, p. 165. Tapinoma boreale Mayr, Myrm. Beitr., Sitzb. d. k. Acad. d. Wis- sensch., lil, 1866. Formica parva Buckl., Proc. Ent. Soc. Phila., 1866, p. 159. Fifteen 8 8. Margarita Island and San Jorge. The genus Tapinoma, as far as known at present, is represented in North America by but one species with numerous varieties, varying in size and coloration, all of which pass so gradually from one to the other that it is almost hopeless to separate them satisfactorily. The present form is smaller and paler than most of those found in the United States, and comes nearest to var. 7. boreale Rog.; I hesitate, therefore, without having a knowledge of the sexes, to describe this form as new. FORMICIDA FROM LOWER CALIFORNIA. 31 MYRMICIDZ. g. PSEUDOMYRMA sp. One %. Calmalli mines. This may be but a variety of Pseuwdomyrma thoracica Nort., though the specimen is only about half the size. The principal difference appears to be its coloration. Sufficient additional material would be needed to settle the question of identity. 10, . ATTA-VERSICOLOR 0; sp. %. Length, about 6 mm. Color reddish-brown. Eyes and apical edge of mandibles, black. All de- pressions and all prominences appear to be black in a certain light, while the nodes and the abdomen, if viewed from above or in certain directions from the side, have a bright coppery reflection. Head wider than long, deep and angularly emarginate behind; a rather broad, shallow frontal channel and laterally carinated area beyond insertion of antenne. Posterior angles of head rounded and with a row of six or more short denticles, the last one somewhat longest; three or more teeth may also be observed along the pos- terior ventral edge each side, the anterior one of which being longest. Frontal lamina broad, somewhat longer than wide, bifid at upper angle; interno-ocular carina distinct, curved inwards. -Clypeus broadly triangular, slightly arcuate in front, with a slight median emargina- tion. Mandibles large, triangular, their apical edge al- most straight and furnished with four to six blunt, rudi- mentary teeth. Scape of antenne rather short, reaching but little beyond posterior angles of the head. Thorax of the usual shape in this genus. Prothorax with two stout spines each side, the anterior pair farthest apart, longest, inclining forward, the other two stouter, directed backward and outward; two short, 32 CALIFORNIA ACADEMY OF SCIENCES. stout, backward directed median tubercles or spines in front of the middle of the mesothorax and a still shorter one each side of them at the anterior margin. Meta- thorax with a deep median depression, the upper edges quite acute, terminating anteriorly in a small tooth-like projection. Metathoracic spines rather long and slender, curved backward and outward. First node of petiole triangular from a lateral view, its two dorsal and the lateral faces quite flat, the edges acute; the upper edges are provided anteriorly with two short, stout teeth, and laterally with two to three smaller denticles each side; there is also a forward directed, acute ventral tooth at base. Second node wider than long, rounded in front and at sides, truncate behind, con- cave above, the edges acute and beset with four or five short, acute teeth; there is also a prominent lateral carina, furnished with four or five teeth, and two ventral teeth. Abdomen of the normal shape, the first segment with a depressed median line, and each lateral half with about twenty-five teeth, some of them bifid, arranged in irregu- lar rows. The other segments without teeth or tubercles. Head, pro- and mesothorax rugoso-granulate; the metathorax, legs, nodes and abdomen densely and finely granulate. Erect pubescence stiff and blackish, the appressed pubescence yellowish. Two %. Taken at Calamujuet. This appears to be related to A. coronata Fab., which differs from this species in the comparatively smoother surface of every part of the body, the longer mandibles and antenne, more numerous and longer denticles of the head, much longer spines of the thorax, lower anterior node and larger and more flattened posterior node of the petiole. FORMICIDZE FROM LOWER CALIFORNIA. 33 Iz. POGONOMYRMEX BADIUS Ltr. Formica badia Ltr., Hist. Fourm., p. 238. Myrmica californica Buckley, Proc. Ent. Soc. Phila., 1867, p. 336. Pogonomyrmex badius Mayr, Verh. d. k. k. zool.-bot. Gesellsch., 1870, p. 971. One 8. San Fernando. 12. PoGONOMYRMEX BADIUS Ltr., var. ESTEBANIUS n. var. 2. Length, about 9 mm. Color yellowish-red, the abdomen darker; the first segment with broad, black- ish apical and lateral margins. Eyes black. General sculpture nearly identical with that of the typical form. but slightly stronger on the declivity of the metanotum and nodes. The first node is also somewhat larger, its sides more parallel, and the apex of the hump not so acute; while the stigma is black instead of being yellow. %. Length, 6-7 mm. Color darker red than in the typical form; the apical third, or more, of the abdomen more or less blackish, and the nodes often brown; the petiole is more slender and the first node longer and less erect; the apex rounded or sometimes but slightly pointed. Two 2? and many §8 8. Calmalli Mines, San Es- teban. A few specimens from Margarita Island and San Bor- gia have the entire abdomen and the first node black, or very dark brown, while the second node is generally either brown or reddish and only occasionally black. 13. APHA=NOGASTER PERGANDEI Mayr. Aphenogaster Pergandei Mayr, Verh. d. k. k. zool.-bot. Gesellsch., 1886, p. 448. Twenty 8%. San Borgia and Calamujuet. This species has been found as far north as San Ber- paramo Gor, Cal. 2D SER., Vou. IV. (3?) September 19, 1893 34 CALIFORNIA ACADEMY OF SCIENCES. 14. APHANOGASTER SONORZ N. sp. %. Length, 7-9 mm. Reddish-brown; declivity of metathorax, inner face of its thorns and more or less of base of first abdominal segment reddish. Eyes blackish- brown. The whole insect is highly polished and rather sparsely beset with medium sized, erect, pale and glisten- ing, stiff hairs, which are densest on the head and ventral side of the abdomen, longest and finer on the under side of the head, the coxe and ventral side of abdomen; those on under side of head are longest and gently curved for- ward, similar to those of Pogonomyrmex. Pubescence of antenne shortest and somewhat appressed. Head almost twice as long as broad, slightly broadest at insertion of mandibles, gently rounded beyond the eyes, with the posterior emargination almost semicircular, and about as broad as the prothorax. Its surface is densely and finely striated, the stria extending but little beyond the eyes, except those along the middle of the face, which extend a little farther back, their ends curv- ing inward and becoming confluent. Spaces between the striza dense but finely granulated. Lower portions of cheeks and the vertex beyond the striz polished and faintly shragreened. Clypeus broadly triangular, slightly arcuate in front; the spaces between the stria smooth. Frontal area small, triangular, smooth or faintly granu- lated posteriorly. Mandibles large, densely striated, with a few coarse, scattered punctures; their apical edge pro- vided with two large teeth at the apex and two or three rudimentary teeth along the edge. Antenne long and slender, the scape reaching beyond the posterior margin of the head; the first joint of the flagellum is about five times as long as wide, the others gradually decreasing in length, the last somewhat longer than the penultimate joint. FORMICIDZA FROM LOWER CALIFORNIA. 35 Thorax much elongated, almost twice as long as the head, the divisions but feebly indicated. Prothorax and dorsum of mesothorax polished and delicately shagreened ; the metathorax and sides of the mesothorax with dense, transverse striae; the posterior declivity and thorns of the metathorax smooth and polished, the thorns with longi- tudinal striz at base. Thorns large, gently curved, in- clining backward. Nodes of the petiole polished, faintly shagreened, each with two longitudinal, impressed lines above; the highest point of the first node slightly inclin- ing forward; second node pyriform, stoutest posteriorly. Abdomen highly polished, with scattered piliferous punc- tures, those of the first segment prolonged posteriorly in a depressed line of the length of the hairs. Legs long, slender and highly polished, the hairs denser and shorter than on the rest of the body. Four % %. Hermosillo, Sonora. This may possibly be but a variety of ADA. albisetosa Mayr, from the description of which it appears to differ in the shape and sculpture of the thorax. I5. SOLENOPSIS GEMINATA Fab. Atta geminates Fab., Syst. Piez., p. 423. Myrmica paleata Lund, Ann. Sc. Nat., 1831, p. 116. Solenopsis mandibularis Westw., Ann. Mag. N. H., vi, 1841, p. 87. Myrmica Gayi Spin., Hist. Chile, vi, 1851. Myrmica virulens Sms., Cat. Brit. Mus., 1858, p. 132. Atta clypeata Sm., Cat. Brit. Mus., 1858, p. 169. Myrmica sevissima Sm., Tr. Ent. Soc. Lond., n.s., iii, 1855, p. 166. Solenopsis cephalotes Sm., J. Proc. Linn. Soc., iii, 1859, p. 149. Cremastogaster laboriosus Sm., J. Proc. Linn. Soc., v, suppl., 1861, Dog: Diplorhoptrum Drewseni Mayr, Europ. Form., 1861, p. 73. Myrmica glaber and polita Sm., Trans. Ent. Soc., 3d Ser., 1862, p. 34. Atta coloradensis Buckley, Proc. Ent. Soc. Phila., vi, 1866, p. 346. Solenopsis xyloni McCook, Rep. on Cotton Ins., 1879., p. 188. Four % & major, three 8 % minor. Comondu and Patrocinio. 36 CALIFORNIA ACADEMY OF SCIENCES. The varieties of this species are almost as numerous as its synonyms. Very common in the West Indies, Florida, Alabama, Louisiana, Texas, California, Mexico, Central and South America. 16. CREMASTOGASTER LINEOLATA Say. Myrmica lineolata Say., Boston Jour. Nat. Hist., 1, 1857, p. 290. Cremastogaster lineolata Mayr, Verh. d.k.k. zool.-bot. Gesellsch., 1866, p. 901. Myrmica noveboracensis Buckley, Proc. Ent. Soc. Phila., 1866, p. 337. Myrmica (Monomorium) marylandica Buckley, tbid., p. 339. Myrmica (Monomorium) columbiana Buckley, ibid., p. 340. (codoma (Atta) arborea Buckley, ibid., p. 349. Cremastogaster coarctata Mayr, Neue Formiciden, 1870, p. 992. Cremastogaster lineolata McCook, Cotton Ins., 1879, p. 187. Oremastogaster lineolata Mayr, Verh. d. k. k. zool.-bot. Gesellsch., 1886, p. 462. Five &%, San Jorge, San José de Gracias, San Ignacio. This species is represented in North America by numerous forms, some of which, after careful study of long series of colonies from different parts of the country, may at least be entitled to variety names. TUNICATA OF THE PACIFIC COAST OF NORTH AMERICA. I.—PEROPHORA ANNECTENS N. SP. BY WILLIAM E. RITTER. While the summer work in biology of the University of California was being carried on at Pacific Grove, dur- ing the month of July, 1892, my special attention was given to the Tunicates of that locality. All the rocky shores of Monterey Bay, particularly those of the south- ern, or Monterey side, are very rich in this group of animals. A large collection was made by myself and students, and the paper here presented is a portion of the results of the study begun on the living animals at the seaside, and continued on preserved material brought back to Berkeley. In my efforts to reach conclusions concerning the variations that were early found to be conspicuous in the form under observation, I have been able to compare a larger number of individuals than would have been possible but for the assistance rendered me by one of my students, Mr. S. J. Holmes, who has prepared many specimens for examination. I may here say, however, that although I have examined many hundreds of indi- viduals, and with considerable detail, as far as general anatomy is concerned, I am satisfied that I have not pur- sued the subject to the extent that it deserves. I antici- pate that further study along this line will yield interest- ing results. The species in hand is a Perophora, as I believe the sequel will show to the satisfaction of every one acquainted with this genus and its nearest congeners. But the in- teresting fact may be pointed out at once that the char- acteristic of chief importance for distinguishing it from the other species of the same genus, would, according to 2D SER., VOL. IY. October 26, 1893. 38 CALIFORNIA ACADEMY OF SCIENCES. some of the schemes of tunicate classification recognized at present, place it ina different family from that to which the genus Perophora is assigned; or, by other schemes, in a different suborder. The character to which I refer is this: J/z very many, though not all, of the colontes the ascediozoords are as completely imbedded in a common test as they are tn Botryllus or Goodstria. The distinction between ‘‘ simple ’’ and ‘* compound,”’ as applied to Ascidians, the importance of which has diminished in the same ratio that our knowledge of the group has increased, is reduced to 27/ by the discovery of this form, so far as its value in determining affinities is concerned. Down to Savigny’s time (716) the compound Tunicates had not been distinctly recognized as Tunicates, but had been generally regarded as Alcyonaria. This author made clear their true nature, and grouped them together under the name 7¢¢hys composées, as opposed to the 7¢thys simples .* After this Lister (°34) made the first of the long series of discoveries that has finally resulted in establishing a most perfect gradual transition from the one group to the other. Itis an interesting fact that his discovery was that of the first Perophora known to science. In it he showed that the ascidiozooids of a colony are all con- nected together by stolons, through which the blood flows constantly and regularly from one to another. Clavelina was known to Savigny, but he seems not to have been aware that it reproduces by gemination, and he placed it among his 7¢¢hys semples. ‘The discovery of this latter fact was made by Milne-Edwards (’42). This author invest- igated this and its allied forms in his usual careful manner, “I have not had access to any of Savigny’s original works, but take this from Jones (48, pp. 5 and 7). PEROPHORA ANNECTENS. 39 recognized its intermediate position between the simple and compound Ascidians, because of its power of repro- ducing by budding, and in conclusion he says: ‘“ Je proposerai aussi de donner a ce groupe intermédaire le nom de: SECTION DES ASCIDIES SOCIALES’’ (p. 266). And in this new section he placed also the one species ot Perophora then known. The two divisions of Savigny were retained, with simply the substitution of the name ewAgcigies . dor ° sl éthys.+ These three co-ordinate sections, thus established by Milne-Edwards, were recognized by many writers, and not particularly opposed by any, until Herdman’s (80) preliminary report on the Tunicates collected by the Challenger Expedition was made. In this collection this author discovered a new genus, belonging to the same family as Clavelina, named by him Ecteinascidia, which difters from Ciona, a genus of simple Ascidians, chiefly in the fact that it reproduces by budding. But he affirms that both Ciona and Ascidia are sometimes found to possess stolons (’82, p. 238). He concluded that the transition between the ‘‘Asczdzes simples’? and the ‘*Ascrdies sociales’’ of Milne-Edwards is so complete that the latter can no longer be regarded as a natural group. He therefore discarded it and united all the genera included in it (Herdman, ‘91, p. 599*, and Gars- tang, 91, pp. 50, 57 and 62), in one family, the Clavel- inide of the Ascidiz Simplices. Finally, Garstang (91, pp. 48 and 49) declares it as his belief that ‘‘ the division of the Ascidiacea into the sub- orders Ascrdie@ simplices, Ascidie composite and Ascidie * The conjecture here made by Prof. Herdman, that Clavelinopsis rubra Fewkes, from the California coast, does not belong to the Clavelinide, is correct. It is not a Bo/tenia, however, but a Styela, probably an unde- scribed species, though I have not yet studied it with sufficient care to say with certainty. 40 CALIFORNIA ACADEMY OF SCIENCES. salpiformes, so completely disregards the admitted inter- relationships between various sections of these groups, that its adoption seems to me to involve the rejection of any morphological, and therefore genetic, meaning in classification altogether.’’ This author, therefore, drops these three suborders entirely, and simply groups the genera together into families. As already said, incidentally, the first Perophora was described by Lister (’34). He did not name it, however, this having been done by Wiegmann (735 ),who established the genus for it and designated it specifically by the name of its discoverer. Since that time, three more undoubted species, includ- ing the one that is the subject of the present paper, have been added to the genus. The first of these three, P. Wutchinson7, from Austra- lia, was described by Macdonald (’59). The second, from the New England coast of North America, was de- senbed by Verrll (71).0 Whistise?:. wexcdes. In recognition of the interesting transitional character of the one here made known, I propose for it annectens as a specific name. DIAGNOSIS OF THE SPECIES. Colonies irregular in form and size, the larger ones two or more inches in length. Mostly encrusting on sticks, stones, sea weeds, and on other Tunicates, particularly Clavelina. Color—pale greenish yellow. Zooids about 14 mm. long by 1 mm. wide, short-oblong, laterally com- pressed, generally crowded together, and wholly embedded in the com- mon test, but frequently remote and with only the basal portion of the body embedded in the thick testicular mass surrounding the stolons. Test mostly thick, forming a common envelope for the ascidiozooids and stolons. Transparent. Stolons much branched, anastomosing freely, provided with numerous lateral and terminal knobs, these confined to the layer of test corres- ponding to the bases of the zooids. PEROPHORA ANNECTENS. 41 Apertures both terminal, branchial six lobed, atrial five or six lobed (though the number of lobes is not constant for either orifice). A ya- riable number of yellow pigment spots on the lobes of the branchial opening. Tentacles about twelve in number (frequently more), of different lengths, irregularly scattered on the inner surface of the branchial siphon. Irregular in arrangement. Branchial Apparatus. Stigmata in four circles, about eighteen in each half circle. Horizontal membranes present. Internal papille con- spicuous, each consisting of a post-like connecting bar, from near the inner end of which project two processes, the one anterior, the other posterior. Dorsal languets three in number, one for each transverse vessel. Each turned to the right side. Duct of the neural gland is funnel-shaped, opening to the right of the median line. Genitalia situated in the loop of the digestive tube, the testes exceedingly variable as to the number of its lobes, from one to eight having been observed in different individuals. I. GENERAL DESCRIPTION. As thus defined, the species is not certainly known to exist elsewhere than in Monterey Bay. I have collected Perophora at Point Reyes, north of San Francisco Bay, and at Santa Catalina Island, off the coast of Southern California. But at neither of these points, nor elsewhere on our coast, though I have searched quite carefully at several places, have I found the compounded form. In addition to the difference in this regard, there are cer- tain other differences, greater or less in different colonies, and apparently different localities, that may be sufficient in extent and constancy to make it worth while to recog- nize other species than the one now described. I leave the question as to what shall be done with the Perophora of our coast that can hardly, in the present state of our knowledge, be included in the new species, as I have defined it, because it seems to me wiser to ten- tatively leave a partially known group without a name, pending further investigation, than to tentatively name 42 CALIFORNIA ACADEMY OF SCIENCES. such a group, as is the practice of systematists in some quarters, with a large probability that the literature of the subject will thereby be permanently befogged for future students. At extreme low tide, the species is abundant at Pacific Grove, though rather less so than numerous other species of compound Tunicates with which it is associated. It grows upon rocks, sea weeds, larger sertularian hydroids and other common objects of the shore, but particularly on another Tunicate, a large, undetermined species of Clavelina, that is common here. To what depths it extends I do not know. None have been taken by the dredge, for our dredging at Monterey was con- fined to sandy bottoms where the Perophora would not be likely to occur to any considerable extent. The colonies in which the ascidiozooids are most com- pletely embedded in the common testicular mass and are most crowded, are found on such objects as present a rather even surface, over which they may spread. Thus in many instances the large individuals, an inch and more in length, of the Clavelina, already mentioned, are found to be almost completely covered over by a coating of the Perophora colony. Fig. 2, pl. i, represents asmall portion of a colony of this kind, twice its natural size, situated ona twig of sea weed. Only the basal portion of the colony is figured, the pur- pose being to show not only the crowded condition of the zooids, but also the fact that a few individuals (7. zo.) of the colony are isolated. It should be mentioned, how- ever, that in no case have I found one of these isolated zooids, in a colony of this kind, raised at all from the stolon ona peduncle, as is the case in some of the species ofthegenus. Fig. 4, pl.i, represents the margin of another colony of the same kind on a leaf of eel grass. The con- PEROPHORA ANNECTENS. 43 dition here shown is quite characteristic. At the extreme edge of the colony there is a narrow, irregular belt of the testicular mass, in which only the stolonic vessels with their numerous short, knob-like: branches, their anasto- mosings, and young zooids are seen. This is Par excel- lence the growing region of the colony. One rarely, if ever, finds young buds in other than this marginal zone, though in some cases they are found in what might be called the proximal portion of the colony, where there are long stretches of stolonic vessels bearing few zooids. The region in which the isolated zooids are shown in fig. 2 is one of this kind, and some of these are not fully de- veloped. Why few or no zooids are present in these re- gions I am not sure, but think it possible that they have died and fallen away. It will be seen in fig. 4, pl. 1, that the vessels do not extend into the test which is situated around and between the zooids; they are confined, for the most part, to the layer that forms the contact with the substratum of the colony. Their branching is mostly in a plane par- allel to the surface on which the colony rests. his latter condition is well shown by the section represented in fig. 7, pl. i. A section of a portion of the testicular mass in which zooids are present, but vessels are not, is shown in fig. 5, pl.i. In some cases, the partition of test that separates two zooids is exceedingly thin, while in other cases it is of considerable thickness. In certain colonies, the zooids are so closely crowded together that they appear on cursory examination to have acommon test; more careful inspec- tion, however, discovers that this is not so; that the test is not continuous from zooid to zooid; they are only in con- tact with oneanother. This having been found to be the case in some colonies, it seemed quite possible that in other cases, where the test appeared to be a unit for the whole colony; where the zooids could not be separated by me- 44 CALIFORNIA ACADEMY OF SCIENCES. chanical means, that this might be due to a still closer crowding together of the zooids, and that sections would reveal planes of contact between the tests of the different individuals. However, such examination proves beyond the possibility of a doubt that no such contact planes exist. As is shown by fig. 5, pl. i, which is drawn from a section of one of these colonies, the test is con- tinuous from one zooid to another, entirely without inter- ruption. From the facts thus presented, the question arises, has this fully compounded condition been produced by such a crowding of the adult zooids of the colony that the tests have become fused by mutual pressure, aided, perhaps, by the constant renewal of the test by growth? Is it not possible that since these individuals of a colony have a common blood system, their tests grow together when brought in contact, after something the same fashion that the severed surfaces of a wound grow together when brought in contact? And it is possible that the process may be assisted by the slight irritation that would be pro- duced on the surfaces in contact. One fact seems to favor such a view. Colonies may be found in which the individuals, though each possessing its own test, are still so closely pressed that they adhere to one another to such an extent as to admit of separation only with considerable force. That complete obliteration of the plane of contact ever takes place in this manner, I have, however, not been able to demonstrate. But even if the compound- ing is ever produced in this way, or was so produced phylogenetically, it is very easy to show that it is not now so produced ontogenetically. The developing individuals in these colonies are from the beginning as completely buried in the common test as are the adults. Figure 1 represents a small portion of the tip of one of the much PEROPHORA ANNECTENS. 45 crowded, but not compounded colonies. This is natural size, and the number and arrangement of the zooids are reproduced as faithfully as possible. The appearance of the zooids when taken from the test is fairly well represented by fig. 3, pl. i, the outlines of which were drawn by the aid of a camera lucida. As compared with the other known species of the genus, the approximately spherical form and the terminal position of both orifices are noticeable. When the anterior end of the fully expanded living zooid is looked down upon, the outline presented is that of a rather broad ellipse with the two orifices situated at the foci. The ease with which the zooids can be removed from the test in the fully compounded colonies is worthy of mention. In a preserved colony that has been cut in pieces, they may be picked from their little cavities in the test, reminding one of the way in which very young frog embryos may be picked from their gelatinous envelop. The only points at which they seem to be adherent are the extreme edges of the orifices, and the point of pas- sage of the blood vessel from the body into the stolon. When we come to examine the minute structure of the test and the body layer in contact with it, we shall see that the union between the two is much more intimate than appears on gross dissection. Another point to which attention may well be called in connection with the general appearance is the course of the transverse vessels of the branchial sac. The body is sufficiently transparent to permit these to be seen with considerable distinctness in a good light. As may be seen by fig. 3, the planes of these circular vessels are not situated at a right angle to the antero-posterior axis of the body, but they all converge on the dorsal side of it. This convergence is associated with a slight dorsal curv- 46 CALIFORNIA ACADEMY OF SCIENCES. ature of the antero-posterior axis itself. As compared with the form, of -P..“zsfe72, (ister) 345 \pll. taaiyaio ge) it is as though the dorsally directed atrial siphon of this latter species had been brought to an anterior direction by bending dorsalward the entire posterior portion of the body. When well distended, the siphons are distinct in specimens removed from the test; and in such cases the marginal lobes of them, though not large, may yet be clearly seen with a slight magnification. In the individual shown in fig. 3 there were six lobes on the branchial siphon and five on the atrial. These are the most usual numbers, but they are not altogether constant. In several instances I have found six on the atrial also. The size of the lobes and the spacings between them may vary considerably. Thus it will be observed in fig. 3, that the interval between two of the atrial lobes is considerably wider and deeper than are those between the others. 2. THE LEST AND THE ORIGIN OF ITS) CELLS: In a majority of the sections which I have examined, the test presents a uniformly hyaline matrix, in which are scattered a few cells (figs: 29, 30,31 and 32, Zs... 7765) The structure is not, however, so simple as this in all cases, for in several instances a vast number of exceed- ingly fine granules have been found in the matrix. This condition I first observed in sections stained on the slide in Delafeld’s hematoxylin; and as the granules appeared to be of the color of the stain, I was inclined to think that they had been deposited from the stain. However, further examination of sections stained by various other methods shows that this, at least, is not their origin. In some cases they are not stained at all, but are seen be- cause of their being somewhat more refractive than the testicular matrix. They are not cut fibers, since they PEROPHORA ANNECTENS. 47 never show as anything else than granules. They are so excessively small that I have not, even witha ;y oil immersion objective, been able to determine much of their nature. From what I have seen in a single specimen ‘stained in borax carmine, I have thought it possible that they may be bacteria. My grounds for this conjecture are not, however, very good. It is a fact worth mentioning, perhaps, that in many cases there is a layer on the external surface of the test that takes the stain considerably more readily than do its remaining portions. This I have observed in sections stained in various ways. The layer is not, however, an external epithelium, such as is described by Maurice (788, p. 58), in the larva of Fragroides. There is, I be- lieve, but one kind of cells in the test, and this is an im- portant fact in connection with what I shall maintain to be their origin. Figs. 29 and 30, pl. 111, represent portions of test containing several of these cells. The figure was drawn with great care, with the aid of a Powell and Le- land ,', oil immersion objective. The more usual condi- tion is that shown in fig. 29. Here the cells are seen to be situated in cavities which they do not fill. The nuclei are by far the most distinct parts of the cells. Indeed, it is not until one examines them very carefully with high magnification and with the most favorable light, that he is able to convince himself that a cell-body can be seen at all. I have not attempted to represent the spaces in which the cells are situated in any of the other figures, and in many cases they cannot be seen. Occasionally one finds cells in which the protoplasm is stained somewhat, though never so deeply as the nucleus. Instances of this kind are Seen at 7..¢., igs. 29 and 30. It happens not in- frequently that two cells are found in one capsule (fig. 48 CALIFORNIA ACADEMY OF SCIENCES. 29). It is probable that division has recently taken place in such cases, though I have never noticed a cell in the act of division. Two papers have recently appeared which call seri- ously in question the view generally held by students of the Tunicata that the cells of the test are of ectodermal origin. The papers referred to are those of Salensky (91) and Kowalevsky (’92). The first-mentioned author refers to the fact that Della Valle has observed the wan- dering out of ectodermal cells from the ectoderm into the ‘* cellulose mantel,’’ there to become transformed into the cells characteristic of this layer, and he then adds: ‘‘ Ich kann eine solche Auswanderung auch fiir die Pyrosomen gelten lassen, muss aber annehmen, dass der grosste Theil der ausserhalb des Cyathozoids lhegenden Zellen von asgewanderten Mesenchymzellen stammt ”’ (p. 12.) ‘* Wenn diese Zellen auswandern, so kann man sie leicht zwischen den Zellen des Ectoderms erkennen, und dadurch wird die Entscheidung der oben aufgestellten Frage tiber die Natur der ausserhalb des Embryos le- genden Zellen bedeutend erleichtert ’’ (p. 13.) And the author illustrates the conditions thus described by figs. 30a and 31. It was with special reference to this point that Kowal- evsky’s paper was written, and he dwells upon it in his text and illustrates it in his plates so fully that there can be no doubt that in the larval development of Pha//usza mammilata the species in which he studied the question, cells of the test are derived from mesenchyme cells which migrate through the ectoderm. ‘¢ Somit steht es,’’ writes the author (p. 7), ‘‘ wenigsten fiir die einfachen Ascidien und speciell fiir Phallusia fest, dass deren Mantelzellen aus dem Mesoderm abstammen; allen Wahrscheinlichkeit nach wird sich derselbe Process PEROPHORA ANNECTENS. 49 auch bei den socialen und zusammengesetzten Ascidien 99 constatiren. Salensky’s paper having appeared about the time, or only shortly before Kowalevsky’s observa- tions were being made, the latter seems not to have been aware of what the former had said on this point. As the testicular mass in these fully compounded col- onies of Perophora is presumably growing constantly, it seemed to me that they offered a good opportunity for testing the assumption of Kowalevsky, quoted above, that in the social and compound ascidians, also, the test cells have a mesodermal origin. I have accordingly studied the point with considerable care, with what results the sequel will show. The cells of the test of the growing colony must be derived from one or more of three sources: First, they may be the direct descendants of the original cells of the test of the larva from which the colony has been produced. Second, they may arise by division from the growing por- tions of the epithelial linings of the stolonic vessels, or, what is the same thing, the external epithelium of the body of the zooid. This epithelium is ectodermal, as we know from the method of development of the stolon, as first shown by Kowalevsky (’74). Third, they may arise from the mesenchymatous cells contained in the blood. Their origin by the first method I can neither affirm nor deny, as I have studied neither the development of the larva nor its first-formed stolons. Even if some of them do have this origin, certain it is that not all of them do, as the following account will show. Their origin by the second method, 7. e., from the ectoderm, I fully believe does not take place. I have searched through many sections prepared by many meth- ods for evidences of it, but have failed utterly to find it. There remains, then, only the third method by which 2p SER., VOL. IV. (4) October 26, 1893. O CALIFORNIA ACADEMY OF SCIENCES. on they may originate. The evidence on which I base my belief that they arise by this last method is threefold: First, the cells of the test are wholly unlike the cells of the endothelial lining of the stolonic vessels, even at the tips of the vessels where the endothelium is thickened because of the growth that is there taking place. Both the endothelial cells and the test cells are shown in figs. 30 and 31, ed.v. The former invariably contain large, clear nuclei, usually spherical in regions where growth is taking place, but sometimes slightly flattened in the plane of the membrane to which they belong. These nuclei are from 4 ». to 6. in diameter. Each contains one large distinct nucleolus. The cell protoplasm, which is in considerable quantity, stains more distinctly than does the nuclear matter. There is no cell membrane, and the cells are irregularly stellate in form, this form being de- termined in part, no doubt, by mutual contact, though in preserved specimens they do not appear closely crowded ; in fact (fig: 3%, pl.. 11) there are often seen aurregulan spaces between them. This is probably due to slight shrinkage. The nuclei of the test cells are, on an average, about one-half the size of those just described, z.¢., 2% yp. in ? diameter. (Bigs. 29, 30.and 31; 2. G2, mm. G. and 77miG-s) A nucleolus can usually, though by no means always, be detected; but nearly the whole body of the nucleus stains deeply, so that the nucleolus is never seen in the midst of a large clear space, as in the case of the nuclei of the endothelium. In by far the greater number of instances the cell-body is not seen at all, excepting by the greatest care and with the aid of high powers and favorable light. When recognizable, it is sometimes disposed in a uniform layer around the nucleus, giving the cell, as a whole, an approximately spherical form; but, more commonly, one PEROPHORA ANNECTENS. 51 or more blunt processes are seen projecting from it. As already said, these cells are very frequently situated in spaces, or capsules in the test matrix. Whether this is wholly due to the shrinkage of the cells I am not sure. Even when these cells are found so close to the endothe- lium as to be actually in contact with it, as very frequently happens, they are still of the same form, size and struct- ure. This, of itself, is strong evidence against their having arisen from this endothelium. It is almost con- clusive proof that they are not endothelial cells which have migrated into the test; and if they had arisen from these cells by division, it would still seem improbable that they should at once be so different from their mother cells. Again, it would seem that if they have such an origin, cases in which the division is going on might be found. Although I have searched diligently for such cases my efforts have been in vain. My second reason for believing the cells of the test to be derived from the contents of the vessels and the body spaces is that cells are found here which are, so far as lam able to make out, precisely similar to the test cells. Figs. 30 and 32, m. c’., pl. iii, show some of these, or rather their nuclei, in the first figure taken from one of the stolonic vessels, and in the second from the body space in the region of the branchial siphon. Fig. 37, pl. ii, represents three of them from one of the vessels as they appear under the ;', oil immersion objective. These are so similar to the cells of the test in size, form and behavior toward stains that they need no description. That which has already been given ot the one applies in every respect to the other. The third point which I present in evidence for my contention is that I have found the cells in the process ot migration through the endothelium. The most convincing 52 CALIFORNIA ACADEMY OF SCIENCES. instance of this is shown in fig. 30, m.c., pl. iii. Although neither nucleolus nor cell-body could be distinguished in this, still it differs in no way from many nuclei that are found on both sides of the membrane, 7. e., within the vessel and in the test. ‘That it is embedded in the pro- toplasmic portion of the cells of the endothelium does not, I think, admit of doubt. I suppose it is passing between the two cells, the nuclei of which lie each side Of iit: The same process of migration is seen also, I believe, in fig. 31. This is from a section which cuts the endo- thelium of a vessel tangentially, or rather at a very oblique angle. Onone side of the section test alone appears, while on the other side endothelium appears only. It will be seen that in the region where there is no test three of “these ‘nucle1, are found. Ofcourse, there is ;enear danger of error here, since the endothelium is very thin and cells on its surface on either side may easily be mis- taken as being situated within it. With this chance of error in mind, I have studied this and many other similar sections with care, and have convinced myself that several instances have been found where the migrating cells are in the same plane as the nuclei of the endothelial cells. Figure 32, pl. iii, represents an interesting condition, which strongly confirms the belief here maintained. The section is through the point at which the branchial siphon, already fully formed, so far as the ectodermal membrane is concerned, is about to break through the test. What is taking place will be made apparent by com- paring this figure with fig. 33, which represents a sim- ilar section of an earlier stage in the formation of the siphon. Shortly after the breaking through is com- pleted at the point of fusion of the invaginated ectoder- mal layer with the wall of the branchial sac, a prolific -PEROPHORA ANNECTENS. 53 migration of cells takes place into the plug of test that fills the cavity of the ectodermal invagination. These cells are always strongly contrasted in their appearance with the ectodermal cells, and are entirely similar to cells of the kind already described, which are abundant in the blood spaces of this region. Although none of these cells have been found in the process of passing through the ectoderm at this point, it is still quite possible that such migrations may have been taking place without having been detected. All my sections that have shown this stage of development have been rather densely stained in this region. It is thus seen that my results add one more instance to the two furnished by Salensky and Kowalevsky, in which cells of the tunicate test are not derived from the ectoderm but from mesoderm, or rather in the case here presented, from cells derived from mesoderm; for that such is the origin of the original cells of the blood in Tunicates is well known; the source from which the blood cells are renewed in adult lite is, however, not so well known. It is quite certain, from the instances of division of some of them, as is shown m® fig. 36a, that they are the source of their own renewal—that some of them, at least, always retain the power of reproduction. All the cells of the blood are frequently spoken of by writers on the tunicate morphology as ‘‘ mesenchyme cells swimming in the blood plasma,”’ e. g., Seeliger, ’82, p. 405. I must mention here that since completing these ob- servations on this point, I find that Kowalevsky himself seems to have seen the same migration of cells from the blood into the test in Perophora Listerz, twenty years ago. Thus he says: ‘‘ Souvent encore, ou peut réussir a voir des globules sanguins hors de la cavité des stolons, contre 54 CALIFORNIA ACADEMY OF SCIENCES. les parois du corps dans le manteau extérieur; ces globules ont perdu en partie leurs granulations graisseuses et se sont transformés en cellules voyagueses, puis ont formé les cellules. manteau,’’ p. 6. He then says he has never seen the direct passage of these ‘‘ cellules amoeboides ’’ through the wall of the stolon. I am ata loss to know why Kowalevsky does not recur to this in his recent paper—whether he does not consider it a case in point, or whether he had forgotten it. I have never seen any indication of these cells per- forming a phagocytic function such as is described by Metschinkoft and Kowalevsky as taking place in the tests of other Tunicates. A considerable variety of foreign bodies is found on the surface and imbedded within the test of Perophora, but I have searched in vain for any signs of their being surrounded or ingested by the, test cells. I have thought it possible that the unusual accu- mulation of the cells at the point where the branchial opening is about to form might mean that they are in some way instrumental in effecting the breaking through of the test. Of this I have no other proof, however, than the mere fact of their numerous presence at this point. It seems to me that a sufficient number of cases suf- ficiently widely distributed through the Tunicata are now known to warrant the conclusion that a mesodermal origin of the cells of the test is very general in the group. However, with the large amount and excellent quality of the positive testimony that the ectoderm gives origin to them also, we are not justified in believing the mesoderm to be their only source. It is worthy of notice, though, that numerous writers, particularly recent ones, that might be cited, have simply taken for granted their ecto- dermal origin. I have no evidence that the matrix, or cellulose portion PEROPHORA ANNECTENS. OL Sal of the test is produced as a secretion of the mesodermal cells imbedded in it. It seems rather to be the product of the ectodermal cells by which it is lined; and this agrees with the more usual view of its origin. In many places, both in the stolons and in the developing zooids, the cells of the ectodermal layer have such a form as is shown in fig. 39, pl. iii. I believe this to be due to the fact that the cellulose substance of the test is here being formed. The processes are probably similar to the ones described by Salensky (’91, p. 14), in Pyrosoma, as like- wise projecting from the ectoderm cells into the test. This author also regards the processes as having to do with the formation of the cellulose substance. He says, however, that they are found only at an early stage in the development of the individual. 3. THE MUSCULATURE. The musculature of the mantle is confined to the anterior end of the body, as in other species of the genus. As seen in the whole animal, when examined as a trans- parent object, the longitudinal fibres are most conspicuous as they run backward, separated by wide and quite regular intervals, into a region where the test is particularly thin and transparent. (Fig. 3, 7. m., pl. i.) As seen by this figure, they are radially arranged, each bundle of fibres growing gradually smaller as it passes backward, finally disappearing entirely, usually before the second transverse branchial vessel is reached. A small fragment of the mantle from the branchial siphon is shown in fig. 18, pl. ii. The specimen is seen upon its external surtace, consequently the circular fibres are generally situated internally to the longitudinal fibres. This, however, is not always the case, as for example, the radial bundle r. m.’ passes under some of the circular bundles and 56 CALIFORNIA ACADEMY OF SCIENCES. over others, so that in part the two layers are interwoven. It is also an interesting fact that not infrequently fibres may be seen to branch off from a circular bundle and pass into, and become a part of a longitudinal bundle. 4. THE PHARYNGEAL APPARATUS. To find some typical arrangement as to number, form and position of the tentacles, has been an object of much search, and this the more because of the unqualified statements on this point by Herdman (’9r) with refer- ence to the other species of the genus, and by Garstang (91); with reference to 7. Lzstevz. After examining a very large number of specimens, I believe the question, as I have treated it in the diagnosis, is as nearly definite as the facts will permit. In the fully compound colonies I have found in some individuals fourteen, in one at least eleven, and in another ten. As to length and distribu- tion, fig. 20 illustrates an average condition. There are almost as many different lengths as there are tentacles, the shortest being mere buds, while the longest are of considerable length. The longest are generally situated nearest the peripharyngeal band. In fig. 21, pl. ii, the tentacles of an ascidiozooid from one of the crowded but not compounded colonies are rep- resented, and the arrangement above mentioned is here particularly well seen. 790. 9 . 31. Portion of a tangential section of the test and its epithelial lining. xX 640. g. 32. Section through the point at which the branchial siphon of a developing bud is about to break through the test. 475. g, 33. A section similar to the preceding, but at a considerably earlier stage. X 475. 34. Cross section of the endostyle. 35, 35a, 35b, 35c. Several varieties of the coarse granular cells of the blood. 840. 36, 36a. Cells of the blood with large nuclei, the latter just divided. x 840. 37. Three of the amceboid cells of the blood. x S840. 38. Three of the “irregular bodies” of the blood. x 840. 39. Small portion the epithelium of the exterior of the branchial siphon, showing the drawn-out protoplasmic portions of the cells. x 840. ; PEROPHORA ANNECTENS. (ee) ioe) LIST OF ABBREVATIONS USED IN THE FIGURES. a. anus. at. atrium. at.o. atrial orifice. 6b. c. blood corpuscle. bd. buds. 6. s. blood sinus. br.o. branchial orifice. br.s. branchial sac. c.b.b. inner ciliated band. c.c. Clear cells of stomach. c.d. digestive cells of stomach. ¢.g. cuticular granules on the inner surface of the wall of the duodenum. c.g. coagulated blood plasma (?). c.m. circular muscle fibres. c.m’.andr.m. circularand radial fibres which interweave. con. d. connecting duct of internal papilla. ce. caecum of chylific vesicle. ¢.v. vessels crossing peribranchial chamber. d.g. subneural gland. d.l. dorsal lamina. d.m. dorsal muscle fibres. d.t. dorsal tubercle. dv. duct of dorsal gland. ed. endostyle. ep. v. epithelium lining stolonic vessel. ed. v’. epithelium of stolonic vessel in tangential section. ep. b, epithelium of exterior of body. ep.i. epithelium of inner surface of branchial siphon, with long pro- cesses. ep. s. epithelium of interior of branchial sac. g.c¢. glandular cells of intestinal cceca. g. ca. pits of the duodenum. gl. ganglion. ht. d. heart diastole. ht. s. heart systole. hy. lydroid stem. i.g.c. inner glandular cushion. i. 20. isolated zooids. mt. intestine. int’. duodenum. int’. intestine proper. z.p. internal papilla. J. languet. 84 CALIFORNIA ACADEMY OF SCIENCES. 1. d. lumen of digestive tube. l. p. lateral processes of papilla. m.¢. wigratory cell passing through epithelial lining of vessel. m.c’. migratory cell in test. m.c%, migratory cells within the vessels. m. c.c. median ciliated cells. m.i.b. middle intermediary band. m.g.c. widdle glandular cushion. n. nucleus of ‘*swarm spores.” n?. probable nucleus of parent parasite on tentacle of host. @. cesophagus. o.g.c. outer glandular cushion. o.i.b. outer intermediary band. ov. ovary. p. inner end of connecting duct of papilla. pe. pericardium. p.6.g. peripharyngeal band. re. rectum. r.m. vadial muscle fibres. sep. Septum of stolonic vessel. st. stomach. st’. cells transitional from stomach to duodenum. sti. branchial stigmata. st. v. stolonic vessels. é. tentacles. t. p. pouches of testis. tr.v. transverse vessel. ts. test. w.d. wall of digestive tube. x. large banded cells in blood sinus outside digestive tube. a. same cells passing through wall of same. «’. same cells within lumen of same. y. ‘‘plyoric gland.” y.p.s. yellow pigment spots. / 2.2’. line of contact between two testicular masses. PEROPHORA ANNECTENS. Introductory........ Historical account of SYNOPSIS OF CONTENTS. our knowledge of the genus Perophora DIR SMOSISCOM Lee CNRNCCLEN Sm sat ochre sues Sages aye talons ies) Ska 5 eevee sl aay ape ae 1. General description of the species The test and the mesodermal origin of its cells The musculature The pharyngeal apparatus a. Parasites of the tentacles 6. The branchial basket proper c. The endostyle d. The subneural gland and its duct 5. The digestive tract .... Histology of the several parts The pyloric gland Parasites of the digestive tract 6. Reproductive system He oo dO Study of the movements of the heart, witha suggestion as to the cause of the reversal in the direction of its contractions. iMhiexblood corpusclesisast. 22 ao deds: as octane eo aiee woke oeergareate 7. Circulatory system and blood Bibliography. ...... BD xplanatlomyo fe i outes es) sne ei eerie ere ers: List of abbreviations STUDIES IN PORTULACACEA. BY KATHARINE BRANDEGEE. Many of the plants of this order are difficult of investi- gation in herbarium specimens. The texture of the co- rolla is often so delicate that it can only be unfolded with considerable trouble. The frequently minute crustaceous seeds are equally troublesome. The slow process of germination can only be resorted to in a few species at once, and in dissection they require more than usual care. That they have been neglected is evidenced’by Dr. Gray’s remark concerning the accumbent cotyledons of Lewitsia rediviva, ‘‘So far as we know, it is not so in any other Portulacaceous plant, not even in ZL. drachycalyx.’”* This supposed exceptional position of the embryo is the character relied upon by Mr. Howell in separating the second species of Lewisia, and with it aggregating all the forms of Claytonia and Calandrinia having a circum- scissle capsule, under the generic name of Oreobroma.f The discovery of some undescribed forms in the herba- rium of the California Academy of Sciences having led to the investigation of the embryos of all the accessiblet genera, the results reached were somewhat unexpected, but sufficiently show that the position of the cotyledons is of no generic significance, and in those forms in which they are oblique (it is often impossible to be sure whether they are obliquely incumbent or accumbent) perhaps not even specific. * Proc. Am. Acad., xxii, 276. t Erythea, i, 31. t No specimens seen of Talinopsis, Pleuropetalum, Grahamia, Anacam- peros. 2p S=eR., VOL. IV. March 26, 1894. STUDIES IN PORTULACACE. 87 Cotyledons incumbent. Calyptridium. Monocosmia. Sylvza. Spraguea. Lewisia brachycalyx. Claytonia ambigua. Claytonia rupestris. Calandrinia maritima. And all the species examined of Portulaca and Talinum. Cotyledons accumbent. Montia tontana. Claytonia perfoliata and all its varieties, parviflora, spa- thulata, etc. Claytonia Sibirica. Claytonia Chamissonis. Claytonia linearis. Claytonia lanceolata. Lewisia rediviva. Calandrinia pygmea. Calandrinia oppositifolia. Calandrinia Columbiana. Calandrinia Menziesii, somewhat oblique. Calandrinia Brewerl, es if Cotyledons oblique. Claytonia parvifolia. Claytonia diftusa. Claytonia megarrhiza. Lewisia Kelloggii. Calandrinia Nevadensis. Calandrinia Cotyledon. Calandrinia Howellii. 88 CALIFORNIA ACADEMY OF SCIENCES. Cotyledons conferruminate. Claytonia Virginica.”* Claytonia triphylla. The circumscissile species included in the proposed Oreobroma show examples of all these different positions of the embryo. The tetrasepalous calyx, which, accord- ing to Dr. Gray, makes the only difference between Lewisia and Calandrinia, fails in the variety described below. Mr. Howell is, I think, quite correct in saying of L. brachycalyx, ‘‘sepals apparently 4,’’ for the lower sepals are plainly seen to be bracts, often indeed at a considerable distance below the others. LewisiA Ke_Loceir.—Caudex and fleshy root 4-5 cm. long: outer bracts scarious, 11%4-3 cm. long: leaves 2-3 cm. long; petiole thick, broad and flattened, wrinkled in drying, narrowing upward, to the shorter obovate blade: peduncles stout, terete, 6-15 mm. long, jointed at the very base, broad at the summit: sepals 4, ovate-lanceolate, 8-10 mm. long, glandular on the margins: petals (9 1n the only flower unrolled) oblanceolate, unequal in breadth, 8-12 mm. long: stamens about 15 (too many in the figure), style 4-5 lobed; capsule thin, circumscissile at the base, splitting upward into four or five segments; seeds oblong, 2mm. long, tuberculate in longitudinal rows, minutely strophiolate near the angle of the longer side; cotyledons oblique.—‘‘ Camp Yuba (Cisco), Sierra Nevada, Cal., June 27, 1870. Flowers creamy white. Granitic sand among rocks.’’—Dr. Albert Kellogg. From Z. red7viva it differs in its broad leaves, narrow and glandular sepals and in its peduncle jointed at the very base and in its oblique cotyledons. ~The only specimen seen with ripe seeds was from New Jersey, col- lected by the late Harry Edwards. No fruiting specimens seen of C. Car- oliniana, lanceolata, umbellata ov arctica. STUDIES IN PORTULACACE. S9 LEWISIA REDIVIVA, var.? YOSEMITANA.—Caudex very short; fleshy root very slender: leaves succulent, linear or spatulate, 1-2 cm. long: pedicels cylindrical, 4-1 cm. long, jointed just below the flower and crowned by three ovate scarious bracts: sepals 2, broad, concave, emarginate or more deeply notched at top: petals 5, about 2 cm. long, exceeding the sepals: stamens about 15: style rather shortly cleft; ovary circumscissile from a broad base; seeds too young for description. The flowers fall from the jointed pedicel, in drying, even more promptly than in the type.—Collected somewhere about Yosemite Valley, by Mrs. Willie F. Dodd, in the summer of 189I. This plant has so much the aspect of a depauperate L. rediviva that in lack of mature fruit, I prefer to de- scribe it as a variety of that species. Whether it prove to be distinct or not, it is plainly related more closely to L. rediviva than is any other species, and effect- ually breaks down the remaining barrier between Lewisia and the Lewisioid section of Calandrinia. There re- mains then only to consider whether all these species shall be united with Lewisia on the common characters of the circumscissile capsule and persistent style, or whether Lewisia shall be merged into Calandrinia. I think the first would be the more convenient. Dr. Gray says that circumscissile dehiscence occurs in some South Am- erican species of unlike habit, but does not specify which. There are in the herbarium of the California Academy about thirty species from that region, none of which seem to be circumscissile, though it must be confessed that several of them are too young to admit of certainty. If Montia and Claytonia are both to be maintained, it must be on the lines laid down by Mr. Howell—all 3-ovuled species remanded to the first, and those with 6 gO CALIFORNIA ACADEMY OF SCIENCES. ovules retained in Claytonia. The character isa shght one, but is assisted somewhat by the habit. The annual Calandrinias are probably none of them natives of North America. All the forms of C. Menziesi¢ appear to be represented by Chilian species; C. Brewer7 is inseparable, at least in our herbarium specimens, from C’. compressa Schrad., and C. maritima belongs to the picta group, from some of which, in our herbarium, it is distinguished with sufficient difficulty. It often shows the replum-like threads separating from the margins of the valves so characteristic of Zalinum parvifolium. If Zalinum humile had been known to Fenzl his opinion of the relationship of Portulacacee to Ficoidez would have been materially strengthened. 7. Aumzle has a 3-celled and loculicidally dehiscent capsule, re- minding of Mollugo. The septa are however very thin and traces of similar structure in the form of central vertical folds on the valves are to be found in various species of Talinum, in Calandrinia maritima, Claytonta Chamissonis, Montia fontana, etc. It is well known that seeds are viable before maturity. This fact has a direct and important bearing upon the accurate description of the embryo. In examining a great number of seeds of the same species in this order, the principal variation was found to be in the length of the cotyledons. In those which had evidently reached a sufficient age to germinate, the embryo ranged ac- cording to degree of maturity, from sickle-shaped to a nearly complete circle, and even, in some; the tips of the cotyledons were hooked. In seeds having foliaceous cotyledons the difference between the embryos viable but immature, and mature seeds, is much greater. Bot- anists who describe the embryo from germinating seeds only, are therefore liable to be much misled. STUDIES IN PORTULACACEZ. EXPLANATION OF PLATE. Lewisia Kelloggii, whole plant. A. Ovary opened, showing the upward splitting. B.C. Stamens. D.E. Petals. F. Pedicel and calyx above the joint. Gs, leat: H. Embryo seen from within. I. Embryo seen from the side. J. Seed. OI SECOND REPORT ON SOME HYMENOPTERA FROM LOWER CALIFORNIA, MEXICO. BY WILLIAM Jj. FOX. Through the courtesy of Dr. H. W. Harkness I have had the opportunity of examining another collection of Hymenoptera made by Dr. Gustav Eisen in the Cape Region of Lower California. The collection is much larger than the one previously reported on, and, as may be expected, contains numer- ous species not before recorded from that region. Prob- ably the most interesting accession to the fauna of Lower California is the discovery of a new species of Oxea, a genus which has heretofore been restricted to South America, and to which no species has been added since 1865, when Sichel published a monograph of the genus. As far as the Hymenoptera are concerned, the fauna is more closely related to that of the southern part of Califor- nia proper, Arizona and New Mexico, than it is to that of Mexico, and it is not until the extreme southern end of the peninsula is reached, which is included in the Torrid Zone, do the Mexican species show themselves to any ex- tent, and even there the Boreal forms dominate. The parasitic Hymenoptera will be included in another paper by Mr. Ashmead, as will likewise the Formicide, which are in the hands of Mr. Pergande for study. Unless otherwise stated, the specimens were collected by Mr. Fisen in the fall of last year.. The types’ of the new species described herein are in the collection of the Cali- fornia Academy of Sciences. CHRYSIDID2. CHRYSIS SELENIA Costa. Several specimens. San José del Cabo, October. 2p SgER., VoL. III. April 19, 1894, HYMENOPTERA FROM LOWER CALIFORNIA. 93 MUTILLIDE. SPHAROPHTHALMA SACKENII Cress. San José del Cabo; October. Three 6 specimens. SPH4ROPTHALMA MAGNA Cress. San José del Cabo, October; west side of El] Taste, September; Mesa Verde, October. Eighteen specimens, sixteen of which are from the first mentioned locality, which seems to denote that the species is more abundant in the warmer part of the peninsula and that its true home is in the tropics. In distribution this species ranges into California and Ne- vada. The specimens before me show great variation in size, 13-25 mm. SPH#ROPHTHALMA GLORIOSA Sauss. San José del Cabo and Mesa Verde, October. Numerous specimens. SPH ROPHTHALMA FERRUGINEA Sm. A _ specimen from San José del Cabo, October, I feel obliged to refer to this species, although in Smith’s decription there is no mention made of the pale golden pubescence on second abdominal segment; otherwise the specimen fits the de- scription well. SPH ROPHTHALMA ZAPOTECA Bl. One specimen. San José del Cabo, October. SPH ROPHTHALMA ERECTA 0. Sp. ? .—Ferrugineus; clothed with sparse, long, erect, black hair; mandibles at tip, tibia and tarsi, and apical margin of first and second abdominal segments slightly, blackish; pubescence of cheeks and abdomen beneath, pale; in certain lights there is seen an appressed, silvery pubescence on the dorsal segments of abdomen; on the basal portion of the second dorsal abdominal segment there are two longitudinally parallel, elongate, yellowish marks, and on the apical portion there are two similarly colored, semiovate spots. Head very large, much wider 94 CALIFORNIA ACADEMY OF SCIENCES. than the thorax; deeply punctured, the cheeks not armed beneath; third joint of antenne longer than the three fol- lowing joints united; thorax shaped somewhat like a fiddle, its lateral edge crenulated; above the thorax is coarsely punctured, the punctures becoming gradually larger posteriorly until they form shallow fovez on the metathorax; sides of thorax glabrous; abdomen much more finely and closely punctured than the head and thorax; on the sides of the second dorsal segment and on the same segment ventrally the punctures are sparse; tibiz with strong, reddish spines, their calcaria whitish ; on the pleurz over the four hind coxe there is a large patch of silvery pile. Length, 9 mm. West side of El Taste, September. Is related, though not closely, to S. canadensts, contumax, chiapa, cruczata and petricola. SPH ROPATHALMA SCABER DN. Sp. 2 .—Black, clothed above with dense pale ochraceous pubescence: cheeks, thorax on sides and beneath, abdo- men ventrally and the legs with a much sparser and paler pubescence, through which the black ground color shows plainly; at the base of the second dorsal abdominal seg- ment there is a large patch of black pubescence, the hinder part of which is angulated; the entire insect is deeply punctured, especially on the second ventral seg- ment, which is almost scabrous; four hind tibiz with two rows of strong spines; pygidial area rugose. Length 13-14 mm. San José del Cabo, October. I have seen three speci- mens of this species, two in the present collection and one in the former lot. In general shape it is much like S. pacifica and aureola, but the head is smaller. In ap- pearance it resembles magna and erudita, from which it differs by the black spot on second segment. — HYMENOPTERA FROM LOWER CALIFORNIA. 95 PnHotopsis NEBULosus Bl. El] Chinche, September. E] Taste, 3,400 feet. Five specimens. Puoropsis MELLIPES Bl. El Chinche, September. El! Taste, 3,400 feet. Two specimens. Puoropsis MELICAUSA Bl. Four specimens. El Chin- che, September. El Taste, 3,400 feet. One specimen differs from the typical form by having the greater part of the four hind femora and the second abdominal seg- ment, laterally, black. Puoropsis sp. A small species related to P. clara Bl., from which it differs by the finer sculpture of head. San José del Cabo, October. BRACHYCISTIS CASTANEUS Cress. San José del Cabo, October. El Taste, 3,400 feet. Eight specimens. Rather small for this species, to-r2 mm. SCOLIIDA. MyZINE CONFLUENS Cress. Five 9 specimens. San José del Cabo, October. MyZINE TOLUCA Cam. Two 2 specimens. San José del Cabo, October. MyZINE HAMATA Say. El Taste, 3,400 feet. Eight 9 specimens, which I refer to this species. They differ but little from specimens from the Eastern United States. MyZINE nYALINA Cress. San José del Cabo, October. Seven 6 specimens. MyziInE spp. Two species, from San José del Cabo, that I am unable to identify. Trpuia sp. El Taste, 3,400 feet. A single specimen, perhaps a new species, evidently related to ¢réchiosoma Cam., and zztricata Sm., but seems to be distinct from both. 96 CALIFORNIA ACADEMY OF SCIENCES. PARATIPHIA A2QUALIS N. sp. ? .—Head with large, deep punctures, sparser on the vertex, finer and closer on the cheeks; front before the ocelli smooth and glabrous; clypeus rounded anteriorly ; flagellum stout, the first joint slightly shorter than the second; scape strongly punctured and bearing white hair ; ocelli placed in pits; prothorax above, except hind mar- gin, with coarse, somewhat confluent punctures; dorsulum with large scattered punctures, the lateral impressions deep; scutellum and postscutellum punctured like the dorsulum, the scutellum strongly impressed medially; metathorax above finely shagreened, and at the apex with some strong folds or rugz, the posterior face more strong- ly shagreened and indistinctly punctured; propleure strongly punctured, sparsely so on lower portion; meta- pleure with coarse striations; spines of tibia and tarsi reddish testaceous, the calcaria white; first and second dorsal abdominal segments about equally punctured, the second ventral a little more strongly so; the remaining segments more closely punctured; last dorsal segment, except apical portion, coarsely roughened. Black; head, thorax, especially on fore part of prothorax and legs, with pale pubescence; a fringe at apex of ventral abdominal and the sides of the dorsal segments of whitish hair; mandibles medially and tip of last dorsal abdominal seg- ment reddish. Length 11-12 mm. é .—Head rather finely punctured; antenne stout, the first joint of flagellum a little more than half as long as the second; in length the antenne reach slightly beyond the tegule; prothorax rather finely punctured, its lateral angles not acute; punctuation of dorsulum and scutel- lum stronger and sparser than that of the prothorax; upper surface of metathorax with two approximate fovee in the middle, on each side of these tovez the metathorax HYMENOPTERA FROM LOWER CALIFORNIA. 97 is finely punctured, and just behind them, on the verge of the truncation, there is a transverse row of similar fovez extending from side to side; propleura punctured, with some striations on lower portion, the metapleure coarsely striated: the abdomen punctured similarly as in the 2 ; last dorsal segment strongly carinated medially. Length Q-II mm. San José del Cabo, October; El Chinche, September. Nine specimens. The black clypeus of ¢ and color of wings of ? will separate it from a/ézlabris. The wings of ¢ are subfuscous, with the nervures and stigma black. In the ¢6 they are subhyaline, with a fuscous stain at tip of marginal cell. The punctation of abdomen will separate it from Paratiphia (EH pomidiopteron ) Smithii Cam. SCOLIA BADIA Sauss. El Taste, on the west side, Sep- tember, and 3,400 feet. San José del Cabo, October. The ¢, which has hitherto been undescribed, is colored like the @ , except that the vertex, scape and greater part of dorsulum are black; sometimes the dorsulum is en- tirely black. Scotia LEconrTEI Cress. Three specimens. San José del Cabo, October. One specimen lacks the yellow on scutellum and first and second abdominal segment, and the yellow on pronotum is reduced to two small spots on anterior portion. SCOLIA CONSORS Sauss. One specimen. San José del Cabo, October. ScouiA Ripinesit Cress. San José del Cabo, October. There exists a remarkable similarity between this species and lis xantiana ¢. The ground color and markings are almost exactly the same, and ata first glance these species would be taken to be one and the same. 2p SER., VOL. IV. (7) April 19, 1894. 98 CALIFORNIA ACADEMY OF SCIENCES. ELIs XANTIANA Sauss. San José del Cabo, October, and El Taste, 3,400 feet. Numerous specimens. The males appear to be much commoner than the females. Exits porRSATA Fab. (¢o/feca Sauss.) Numerous speci- mens. San José del Cabo, October, and El Chinche, September. ELis TRIFASCIATA Fab. I refer to this species, with some doubt, six male specimens from San José del Cabo. POMPILIDZ. PompPiLus #THIOPS Cress. E] Taste, 3,400 feet. One 2 specimen. POMPILUS PORUS N. sp. ? .—Clypeus rounded anteriorly; front with a faintly impressed line from lower ocellus to base of antenna; hind ocelli separated from each other by a greater dis- tance than they are from the nearest eye-margin; anten- nz slender, the first joint of the flagellum much longer than the second; eyes converging towards the ver- tex; posterior margin of prothorax arcuate; metathorax rounded behind, not impressed; tibia and tarsi strongly spinose, the fore tarsi with a well developed comb; longer spur of hind tibiz equal to about two-thirds the length of the first hind tarsal joint; abdomen a little longer than the head and thorax; the apical segments sparsely clothed with black hairs. Black; hind femora except the base, and the tibia reddish; anterior and posterior orbits, pos- terior margin of the prothorax, and a spot just before the scutellum pale yellowish; the whole insect is clothed with a sericeous pile; the face, prothorax, apex of meta- thorax, hind coxe and the first segment of abdomen more or less with silvery pubescence; wings subhyaline, their apices broadly fuscous, third submarginal cell much nar- HYMENOPTERA FROM LOWER CALIFORNIA. 99 rowed at the top, receiving the recurrent nervure a little beyond the middle; the cheeks possess some long white hairs. Length, 9 mm. é .—Differs from the ¢ by the short, stout antenne, the first joint of flagellum being but little longer than the sec- ond, by the white calcaria and spines of tibiz and tarsi, and by having the base of the third and the last dorsal segment entirely, whitish; only the apical part of the hind femora and basal half or two-thirds of their tibia, red- dish. Length, 7 mm. San José del Cabo, October. Three specimens. Closely related to posterus Fox and exactus Cam. From the former it differs by the lesser distance between the eyes at the top and the narrower third submarginal cell; from the latter species it differs chiefly by the hind ocelli being more widely separated from each other than they are from the nearest eye-margin; and moreover the four an- terior lees are black. “The 61s evidently the “° small form ’’ mentioned by Cameron under the description of exactus. POMPILUS CORUSCUS var. JUXTA Cress. Five ? and 3 6 specimens. San José del Cabo, October. POMPILUS INTERRUPTUS Say. San José Cabo, Octo- ber. One 4 specimen. The coloration of this speci- men agrees better with the description P. da/teatus Cam.., than zzterruptus, but the fore margin of clypeus is not incurved. POMPILUS EQUUS N. sp. ¢ .—Bluish-black; clypeus black, planate, finely and sparsely punctured, subtruncate anteriorly; just above the base of antenne there is a short longitudinal im- pressed line; eyes, if anything, slightly diverge towards the vertex; hind ocelli separated from each other by a 100 CALIFORNIA ACADEMY OF SCIENCES. distinctly shorter distance than they are from the nearest eye-margin; first joint of flagellum distinctly longer than. the second; scape shining, punctured, in length about equal to the pedicellum and first joint of flagellum united ; prothorax long, rounded at the sides anteriorly; meta- pleure and the lateral part of posterior face of meta- thorax, with coarse, transverse striations, the metanotum without striz and on its apical part with a medial impres- sion; legs darker than the thorax, tibia and tarsi toler- ably well spined; fore tarsi without comb, although there is a row of very short spines on the first joint; longer spur of hind tibia equalling less than one-third the length of the first hind tarsal joint; wings blue-black, darker at the apex; length of the second and third submarginal cells at the top about equal, second recurrent nervure received in the middle of the third submarginal cell; ab- domen half again as long as the head and thorax, com- pressed apically, last segment sparsely clothed with black hairs, Wength, 17. mm. El Taste, 3,400 feet. Related to macronotum Kohl and levifrons Cress., from both of which it differs by the first joint of flagellum being longer than the second; from telemon Cam., it differs by the smooth top of metathorax and by lacking the channel which connects the hind ocelhi with the eyes. This species probably belongs to Kohl’s group 18 (=Pedinaspis Kohl). Pompiuus sp. A 8 specimen from Todos Santos, Oc-- tober, that seems to represent an undescribed species. The head just behind the ocelli is strongly swollen, which gives it quite an odd appearance. PEPSIS TERMINATA Dhlb. (=ornata Lep.) San José del Cabo, October, and El Taste, 3,400 feet.) a hree females. HYMENOPTERA FROM LOWER CALIFORNIA. IOI PEPsIS RUBRA Drury. About forty specimens of this common and widely distributed species. San José del Cabo and Todos Santos, October. El Taste, 3,400 feet. The series before me shows considerable variation, some lack the white tip to wings, and in several males the ful- vous is confined to the central part of the wing. One specimen measures but 2I mm. PEPSIS HESPERLZ Patt. One 6 specimen. West side of El Taste. This species seems to be closely allied to P. Andrei Mocs., to which species I had at first referred the specimen. Myenimia sp. El] Taste, 3,400 feet. A specimen that differs only from wstu/atus by the distance between the hind ocelli and the eyes being about twice greater than the space between them. SPHECIDZ. AMMOPHILA QUADRIDENTATA Cam. West side of El Taste, September. One specimen. AMMOPHILA S4@VA Sm. El Taste, 3,400 feet. One specimen. A. strzolata Cam., seems to be very close to, if not identical with, this species. AMMOPHILA MACRA ? Cress. Three 6 specimens from El Taste, 3,400 feet, that differ somewhat from macra. They may represent the 6 of seva. AMMOPHILA PRUINOSA Cress. San José del Cabo, October. Seven specimens. AMMOPHILA YARROW! Cress. Numerous specimens. San José del Cabo, October. The ¢ is larger than the é , the thorax more densely pruinose, the red on legs and abdomen brighter and more extended. AMMOPHILA sp. Eight ? and nine ¢ specimens of a species that I cannot place. San José del Cabo, October. 102 CALIFORNIA ACADEMY OF SCIENCES. AMMOPHILA FEMUR-RUBRA D0. sp. ? .—Clypeus depressed in the middle anteriorly, with rather strong separated punctures on tore portion, its an- terior margin slightly incurved medially; front and vertex very finely and closely punctured, the former deeply channeled down the middle; vertex a little depressed on each side of the hind ocelli; space between the hind ocelli much less than the distance separating them from the nearest eye margin; first joint of flagellum about equal to the length of the two following joints united; prothorax and dorsulum strongly impressed down the middle, with a rather indistinct punctation; scutellum longitudinally striated on apical half, impressed; sides of metanotum with longitudinally oblique striations, those in the inclosed space transversely oblique; propleure indistinctly striated below; mesopleurz sparsely punctured; petiole of ab- domen composed of two segments. Black; abdomen, except spot at the base of second segment of petiole, large spot on third and fourth and the dorsal and ventral apical segments, pale red; all the femora, except a black line on top the anterior and posterior, also red (sometimes the fore tibiz and tarsired) ; front, clypeus, cheeks, tubercles, large elongate mark on meso- and metapleure, posterior face of metathorax anda spot on the median and hind coxe, of silvery pile; clypeus, mandibles and cheeks with long, sparse, pale pubescence; wings subhyaline, slightly darker on apical margins, second submarginal cell at the top wider than the second. Length 18-20 mm. San José del Cabo, October. Seven specimens. The red femora and black tibia and tarsi will distinguish this from any of the North American or Mexican species of Ammophila now known. SPHEX (Chlorion) NEARCTICUS Kohl. One ?. El Waste, 3,400 feet. HYMENOPTERA FROM LOWER CALIFORNIA. 103 SPHEX PENNSYLVANICUS Linné. I refer to this species a 6 specimen from E] Taste, 3,400 feet, which differs from the typical form by being slightly stouter and by having the reflection of wings bluer. SpHEex Luca Sauss. West side of El Taste, Septem- ber; San José del Cabo, October. Three males. These specimens are entirely black, except the first two or three abdominal segments on the extreme sides, which are ruto- testaceous. SPHEX HABENA Say. San José del Cabo, October. Three specimens. S. speuiger Kohl, from Mexico and Brazil, is very likely synonomous with this species. SPHEX DUBITATA Cress. One specimen. Same local- ity as the preceding. SpuEex (/sodontia) ELEGANS Sm. Three specimens. Same locality as the preceding. ScELIPHRON (Chalybion) ZIMMERMANNI Dhb. Four specimens. San José del Cabo, October. SPHECIUS CONVALLIS Patt. (=raptor Hdl.) Stizus gran@is Pack., Proc, Ent. Soc. Phila., vi, p. 442. Sphecius speciosus var. convallis Patt., Bull. U. 8. Geol. Survey, p. 342, 1880. Q¢. Sphecius raptor Handl., Sitzb. d. k. Akad. der Wissensch. Wien. Mathem.-naturw. Classe, xcvili, p. 461. Three female specimens. San José del Cabo, Octo- ber. Why Handlirsch renames this insect raptor when it already possessed a name, given by Patton, which re- quired but elevation to specific rank, he does not state, and as there seems to be no reason that Patton’s name should be placed in the synonomy, it is but just to give the credit to the latter author. BEMBEX OCCIDENTALIS Fox. San José del Cabo, Oc- tober. Twelve specimens. One specimen, a ¢, lacks TO4 CALIFORNIA ACADEMY OF SCIENCES. the yellow marks of the center of dorsulum, and the mark- ings on metanotum. BEMBEX MONODONTA Say. Three specimens. San José del Cabo, October. MoNEDULA SPECIOSA Cr. Two specimens. San José del Cabo, October. BEMBIDULA VARIEGATA Oliv. San José del Cabo, Oc- tober. Three specimens. STENIOLIA DUPLICATA Prov. San José del Cabo, July and October. ST1zus GopMaNI Cam. (=agz/is Cam. non Sm.) Nu- merous specimens, 28 ?,1 6. San José del Cabo, July and October; El Taste, 3,400 feet. STIzUS FLAVUS Cam. El Taste, 3,400 feet; San José del Cabo, October. Nine specimens. This species oc- curs also in New Mexico and Colorado. STIZUS LINEATUS Cam. San José del Cabo, October. Two specimens. Resembles favus greatly, but the thorax is less yellow, the legs slenderer, and the space between the eyes at the clypeus narrower. STIZUS UNICINCTUS Say. San José del Cabo, October. This is the first specimen of this species seen by me that has the abdomen entirely black. TRYPOXYLON PROJECTUM Fox. San José del Cabo, October. One 6. This specimen differs only from those from Louisiana and Florida by the black hind tarsi. TACHYTES DISTINCTUS Sm. (4 = elongatus). Six 4 specimens that represent probably a slight variety of this species. The apex of the femora and the hind tibiz are not yellowish as in the specimens from the United States. San José del Cabo, October. HYMENOPTERA FROM LOWER CALIFORNIA. TO5 TACHYTES sp. One 6, related to serzcatus Cress. San José del Cabo, October. TACHYTES EXORNATUS Fox. Ina paper onthe North American Larride,* I described a new species of Zachytes from New Mexico, based on a @. There are before me three females from San José del Cabo, October, and El Taste 3,400 feet, that evidently belong to this species. They may be characterized as follows: @ .—Black; the legs, except coxe and trochanters, and the abdomen red, except a blotch on the third dorsal abdominal segment, the fourth and fifth dorsals entirely, and spots or blotches on the ventral segments, all of which are black; basal half of mandibles, spot at apex of scape beneath and the tegule, also reddish; head in front, dorsulum, especially on sides, mesopleure, with pale golden pubescence, that on the other parts of the thorax and on the occiput, grayish; cheeks, legs more or less and the apical margin of dorsal abdominal segments 1-4, with silvery pile, that on the pygidium golden; wings yellow- ish, iridescent, dusky at apex; nervures reddish testa- ceous. Anterior margin of clypeus somewhat rounded- out and armed with two teeth on each extreme side; space between the eyes at the top less than the length of an- tennal joints 2 and 3 united; first joint of flagellum scarcely one-quarter longer than the second; scutellum not im- pressed; metanotum not furrowed, the fovea at apex dis- tinct; tibia and tarsi strongly spinose; longer spur of hind tibiz slightly longer than the first joint of hind tarsi; ventral abdominal segments 3-6 sparsely punctured, and segments 2-5 with a transverse row of bristles before their apices. Length 18-19 mm. * Proceedings of the Acad. Nat. Sciences, Phila., 1893, pt. 3. 106 CALIFORNIA* ACADEMY OF SCIENCES. TACHYSPHEX TARSATUS Say. One 2. San José del Cabo, October. ASTATUS BICOLOR say. One ¢. Same locality as preceding. GORYTES SPILOPTERUS Handl. San José del Cabo, October. One specimen. GORYTES sp. ‘San’ José del Cabo, October. One 6; related to hamatus Hdl. and may be the 4 of Punctifrons Cam., from Mexico, a species that is said to be allied to hamatus, and of which only the ? is known. CERCERIS spp. There are in the collection three species of this genus, none of which I have been able to identify. All are from San José del Cabo, October. PHILANTHUS VENTILABRIS Fab. (4 = frontalis.) lelain ls araleinveroe eistevarersttte 468 i s Py <4 is SE ee cx a, on Nl. Ler eT rene Ree ae - a = « the a ee e. * a os x ; } 4 _ 7 a iad = ¢ bY ee e Pp = j ; en een er —_~ =— ——, eo a a we 2 ~~ y \ Tx. ; ee rr a rey A, . PLATE IV. Alice Eastwood, de/. LEWISIA KELLOGGII. PLATE V. LITH. BRITTON & REYS.F, PLATE Vi. LTH BRITTO & PELL. a. ! ‘ ith. Co.Phi Plate VII, Li Gentury Proc. Cal. Acad. Sc. Vol. IV. heppard del. et \ith. Edwins Ne nd! ik ae OC Te Po ery ie : zh ‘2 | Oe : ea wey ad im oe Plate VII. Proc. Gal. Acad. Sc. Vol. IV. Century Lith. Co. Phila. Edwin Sheppard del. et lith. i) * Uys YY Uy i i ly / Hh Wy YE y Yi H] y / Wy TUL HELD; HIPPOCEPHALUS JAPONICUS. “WOINHOUAITVO VINOLOAN Te dLlvwid PLATE XII. NEOTOMA ALBIGULA. “WNVOIXENW VINWO.LOAN MINDS TEN SAgSl Pil AGG Ee ive Po ae ae ean 4s SE 4/TH. BRITTON & REY . PLATE XV. (ie Ischnure? erratica Ish. exstriata Lsch. cervula Tschnure perpaa 9. \ Ne : Arg Lrythragrion salvim Vi chiestes grands cuprea Livida agnoides 22, Argia oenea 19. 20. ee See Se, 24. 1} 4 23. / = Anax /utlus Anax Walsingham Aeschna californica Ae. cornigera J if yh Ae. multicolor Ae /utepentis <2 PYOTO.LTE. BRITTEN & BE. eu PLATE XVI. Fy 8 35. Wacrothemis milzns 4l. foo) \ Ne a Macrothems MEGUIUIGUIS A > i GAN. Dy. vussala f | ips Sia = Jy 50; oS ~~ Se 51. 2S Dy thems sterilis i Fos Se iS Dy. velox — <= eh th 60. eee oe : te aoa EY ' 59. — - 64. ~— Pseudoleon superbus 69. Libellula saturela Orthems ferrugines pe oad s ii \ A sad I “ ON a f\ ) \yee Pen ak Octogomphus Speclaras AOTC dT, BRITTON & EEK, PLATE XVII. Micrathyria aidyma Se Ney) 107. 122. Ph Zz AN Ny pie? HAS yg 123. ey y Hi yah Di; Dipi ax Corrupla HG bL — e Diplax itjota D, corrupt PHOTO LITA, EUTTOVE EAS. PLATE XVIII. 1, Aquilegia ecalcarata Eastwood. td PLATE XIX. PHOTO.LITH. BRITTON & PENS F ALE. DEL, wood. %. Aquilegia micrantha Fast “4 oon r ’ ’ he i ¥ ‘ ; yr ' : te “PROCEEDINGS OF THE CALIFORNIA SECOND Sa awTHROPOLOG CONTENTS: ISSUED SEPTEMBER 28, 1894. ACADEMY OF SCIENCES. ] PAGE Report on some Mexican Hymenoptera, principally froni Lower Cali- EOLA Sy W WMO Mie LoD OR ies, he ath dla bin = ako elalstn pinto eoaige ean ee a 1 On a Collection of Formicide from Lower California and Sonora, MECEIC ON hy NCO GAOL GBT Gs oS sa ge k i hel gue Scie & igs oaks aoto Safa eal we alans 26 Tunicata of the Pacific Coast of North America. 1.—Perophora MU RCCL AILS set) ik Wok Ven Hs Pu EDM ATS BeOS eo Pe aaa 37 Studies in Portulacaces. Katharine Brandegee............0. 00.20. 86 Second Report on some Hymenoptera from Lower California, Mexico. William J. Fox. 92 Some Parasitic Hymenoptera from Lower California. William H. Ashmead. 122 On Land and Fresh Water Mollusca of Lower California. No, 4. J. G. Cooper. 130 Description of. a New Species of Ribbon Fish, Trachypterus rex- salmonorum, from San Francisco. David 8. Jordan and Charles H. Gilbert. 144 Description of a little known Agonoid Fish, Hippoccephalus japonicus Frank Cramer: 147 Description of a New Wood-Rat from the Coast Range of Central KORO RTA Aa: CaN VU ECE AU ee Fy oh Pe an ciation csi Orabal oan Fel 154 Description of a New Species of Wood-Rat from Arizona. Flora Hartley. 157 Formicide of Lower California, Mexico. Theo. Pergande........... 161 On some Pliocene Fresh Water Fossils of California. J. G. Cooper, . 166 Studies in, Ceanothus: Katharine Brandegee. 2.0.0.2 0 eee 173 Observations upon the Heteropterous Hemiptera of Lower California, with descriptions of New Species. P. R. Uhler................. 22% Déscriptions of three New Lizards from California and Lower California, with a note on Phrynosome blainvillii, John Van Denburgh.... 296 The Coleoptera of Baja California. George H. Horn................ 302 Notes on Crotalus Mitchellii and ‘‘ Crotalus Pyrrhus.” aks Johu Van Deiburgh. 450 Phrynosoma Solaris, with a Note on its Distribution. John Van Denburgh. 456 Descriptions of Four New Pocket Mice from Lower California, col- lected by Walter E. Bryant’ Dr.C. Hart Merriam.............. 457 ' PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES SECOND SERTRNTHROPOLOGIDYL SOCIET — ~~ | OF WASHINGTON, D.C, VOLUMI F ; | Part 2, CONTENTS: The Odonata of Baja California. Philip P. Calvert.................. 463 Two Species of Aquilegia from the Upper Sonoran Zone of Colorado ita Wish Aliee Bastwood sh. sic. |< td ime oloscl eh Be bs bis ay ataen Syne Notes on West American Crustacea. .Samuel J. Holmes....... ..... 563 Notes on Palewozoic Crustacea No. 4.—On a New Trilobite from Arkan- sas Lower Coal Measures. Anthony W. Vogdes...............- 589 Description of Evermannia, a New Genus of Gobioid Fishes. David Starr Jordan. 592 On the Diptera of Baja California, including Some Species from Adjacent Regions. C. H. Tyler Townsend.......... ..-..+.--. 593 CE Laa Caleta ih a aks (ASI spree I nae tO aaa a Pee a UR CeIn ielcds blr coi. 621 MMe Rage tc Nr ee RRA MSU AGL) VAN tt GubratatoroPANs tine aioe lane Rint tale oh 643 SAN FRANCISCO: CALIFORNIA ACADEMY OF SCIENCES. 1895, Issued April 17, 1895. 4 6. et WADA, wiitels ae f SMITHSONIAN INSTITUTIO wag ‘ Mnf oy 088 01 302 6571 ‘ et wie Ny PhD wtp wy!) ; Be ‘ OUR Kt aD ary iG aie Site he My sit etal NY CHEB S Pe CRe Un enn ESOL hd Watt 13% i bs A ON 0:6 Hatt Art +'Y i Ki ‘ Oe. eae yee ae SR Vitara ATW AI RE PHO MEL Oh Bhdctek be) TOUR PO aM ROM te Ast oh J * eet if LD ib bog f He i}