HARVARD UNIVERSITY SO. LIBRARY OF THE Museum of Comparative Zoology The Great Basin Naturalist VOLUME XXIX, 1969 Editor: Vasco M. Tanner Associate Editor: Stephen L. Wood Published at Brigham Young University, by Brigham Young University Volume XXIX December 31, 1969 Nos. 1-4 TABLE OF CONTENTS Volume XXIX Number 1 — March 28, 1969 Undescribed Species of Nearctic Tipulidae (Diptera), X. Charles P. Alexander 1 The Buprestidae and Cleridae of the Nevada Test Site (Coleoptera). Illustrated. William F. Barr 11 Bees of the Nevada Test Site. Dorald M. Allred 20 A Note on Geranium richardsonii Fisch. & Trautv. Illus- trated. John W. Van Cott 25 New Combinations and a New Species of Perennial Cryp- tantha. Illustrated. Larry C. Higgins 28 New Records and Distributional Notes for Reptiles of the Nevada Test Site. Wilmer W. Tanner 31 The Efficacy of Haloxon and Thiabendazole as Anthel- mintics Against Gastro-intestinal Nematodes in Sheep. Ferron L. Andersen, Keith H. Hoopes, and J. Carl Fox 35 NOTE: Lepidoptera of the Nevada Test Site. Dorald M. Allred 42 NOTE: Wislouchiella planctonica Skvortz (Chlorophyta. Volvocales), A New Algal Record for Nevada. James L. Reveal 43 NOTE: The Infection of Immature Aquatic Insects by Larval Paragordius (Nematomorpha). David A. White .... 44 Number 2 — July 31, 1969 The Ecology of the Western Spotted Frog, Rana pretiosa pretiosa Baird and Girard, a Life History Study. Illus- trated. Ronald L. Morris and Wilmer W. Tanner 45 Fossil Chelonians. Chrysemys and Clemmys, from the upper Pliocene of Idaho. G. R. Zug 82 Notes on the Distribution and Bionomics of Some Idaho Cerambycidae (Coleoptera). William F. Barr and Richard L. Penrose 88 Overwintering Phytoseiid Mites in Central Utah Apple Orchards. Illustrated. John W. Leetham and Clive D. Jorgensen 96 Spiders of the National Reactor Testing Station. Dorald M. Allred 105 NOTE: Individual Rodent Movements in Upper Sonoran Desert of Central Nevada. Jon Ghisehn 109 ii NOTE: An Albino Pacific Tree Frog, Hyla regilla, from Death Valley, California. Fenton R. Kay Ill Number 3 — September 30, 1969 New Synonymy and Records of Platypodidae and Scoly- tidae (Coleoptera). Stephen L. Wood 113 Zoogeographic and Systematic Notes on the Lace Bug Tribe Litadeini, with the Description of the New Genus Stragulotingis (Hemiptera: Tingidae). Illustrated. Richard C. Froeschner 129 A New Species of Oppia from Colorado (Cryptostigmata; Oppiidae). Illustrated. Tyler A. Woolley 133 A New Genus and Species of Oribatid Mite (Acari: Lia- caroidea, Metrioppiidae) . Illustrated. Tyler A. Woolley .... 137 A New^ Species of Linear us from a Wood Rat Nest (Aca- rina: Cryptostigmata, Liacaridae). Illustrated. Harold G. Higgins and Tyler A. Woolley 140 Invasion of a "Trapped-out" Southern Nevada Habitat by Perognathus longimembris . Lester D. Flake and Clive D. Jorgensen 143 List of the Insect Type Specimens in the Entomological Collection of the Brigham Young University, Provo. Utah, No. III. Vasco M. Tanner and Don R. Harris 150 Studies on Raptor Mortality in Western Utah. David H. Ellis, Dwight G. Smith, and Joseph R. Murphy 165 Number 4 — December 31, 1969 Qualitative Behavior of a Pupfish {Cyprinodon atrorus) in Differing Environments. Illustrated. Murray Itz- kowitz and W. L. Minckley 169 Does Vireo gilvus swainsonii Occur in Utah? Gary L. Worthen 181 List of Insect Type Specimens in the Entomological Collec- tion of the Brigham Young University, Provo, Utah, No. IV. Vasco M. Tanner and Don R. Harris 183 Index 206 lU 5- Qd-j^^'^ Volume XXIX, No. 1 March 28, 1969 The 5-171 Great Basin iiirruiJiiiiST Published by Brigham Young University GREAT BASIN NATURALIST Editor: Vasco M. Tanner, Department of Zoology and Entomology Brigham Young University, Provo, Utah Associate Editor: Stephen L. Wood, Department of Zoology and Entomology, Brigham Young University, Provo, Utah Members of the Editorial Board: Ferron L. Andersen (5), Zoology Jay V. Beck (3), Bacteriology Robert W. Gardner (1), Animal Science Joseph R. Murdock (4), Botany WiLMER W. Tanner (2), Zoology, Chairman of the Board Stanley L. Welsh ( 1 ) , Botany Ex officio Members: A. Lester Allen, Acting Dean, College of Biological and Agricultural Sciences Ernest L, Olson, Chairman, University Publications, Uni- versity Editor The Great Basin Naturalist Published at Provo, Utah by Brigham Young University Volume XXIX March 28, 1969 No. 1 UNDESCRIBED SPECIES OF NEARCTIC TIPULIDAE (DIPTERA), X Charles P. Alexander' At this time I am describing various new species of crane flies from western North America, including Alaska and British Colum- bia, collected by Dr. Marion E. Smith and David L. Carson; Nevada by Dr. Donald (j. Denning; and Utah, by Dr. George W. Knowlton. Dr. C. Dennis Hynes, and Dr. Donald W. Davis. 1 am greatly indebted to the persons listed for permission to retain the types of the novelties in my personal collection of World Tij)ulidae. Genus Tipula Linnaeus Subgenus Arctotipula Alexander Tipula {Arctotipula) Alexander; Philippine Jour. Sci., 52:410; 1933. Several species of Arctotipula now are known from Alaska and adjoining territories and a brief discussion of certain of the previously described forms seems to be advisable. The references cited are listed at the conclusion of the paper. Lackschewitz (1936:290) has placed Tipula {Arctotipula) aleu- tica Alexander (1923) in the synonymy of T. {A.) hesselsi Osten Sacken, certainly in error. The outer wing veins of aleutica have abundant macrotrichia while the hypopygial structure is quite distinct from that of besselsi and certain other allied species. In the same paper, Lackschewitz (1936:288) places T.{A) alascaensis Alexander (1923), described from the Pribilof islands, in the sy- nonymy of ciliata Lundstrom (1915), a course that was followed by Savchenko (1961:325). It may be affirmed that the two flies are quite distinct in hypo{)ygial characters, very definitely in the struc- ture of the inner dististyle. In alascaensis the beak of the latter is short and obtusely rounded to appear almost suboval in outline, ex- tending only a short distance beyond the very stout outer spine of the style. T. {A.) 0klandi Alexander (1921), described from Nova Zembla. likewise was considered by both Lackschewitz and Sav- chenko as being identical with ciliata but paratype specimens in my 'Amherst, Massachusetts. The Great Basin Naturalist 2 CHARLES P. ALEXANDER Vol. XXIX. No. 1 collection have the conformation of the inner dististyle different from that shown by Savchenko (1961 :326, fig. 3) for ciliata, including the beak and the outer spine. Tipula (Arctotipula) denali, n.sp. Size medium (wing of male 14.5 mm.); flagellar verticils short; general coloration of body dark gray, vestiture very reduced to nearly absent; wings yellowish white, restrictedly patterned with brown; Rs long, about two and one-half times m-cu; male hypopygi- um with posterior border of tergite triemarginate, the intermediate lobes acute, their mesal borders microscopically toothed; outer disti- style small, vestiture short. Male. — Length about 16 mm.; wing 14.5 mm.; antenna about 4 mm. Frontal prolongation of head about three-fourths the remain- der, light gray above, more plumbeous on sides, nasus stout; vestiture reduced to very sparse short stout black setae on outer half of pro- longation; palpi black. Antennae black; flagellar segments without basal enlargements, longer than the verticils, beyond the first with dense short yellow setulae. Head uniformly gray with a vague more darkened line on posterior vertex; vertical tubercle low. de- pressed medially; posterior half of head with sparse short black setae, longer and porrect on genae and beneath, very reduced in number and size on vertex, lacking on the midportion. Cervical region and pronotum blackened, heavily gray pruinose. Mesonotal praescutum light gray with four scarcely indicated darker gray stripes that are very narrowly bordered by darker; scutum gray, each lobe with two confluent darker areas, the anterior one smaller; posterior sclerites of notum light gray, parascutella pale; notum virtually glabrous, praescutal interspaces with microscopic punctures that bear tiny yellow setulae. Pleura light gray, vaguely patterned with darker gray areas; dorsopleural region buffy yellow. Halteres brown. Legs with coxae light gray, vestiture reduced to sparse microscopic yellow setulae; trochanters dark gray; femora and tibiae reddish brown, tips darker; tarsi dark brown; claws of male with a single slender tooth. Wings yellowish white, with an extensive pale brown clouded pattern that is subequal in extent to the ground, stigma darker brown, oval; more extensive brown clouds include a continuous seam along Rs. two large areas in cell M, most cells be- yond cord, and outer ends of cubital and anal cells; the major ground areas include the prearcular and costal fields, cell R and inter-spaces of cells M and Cu, and the broad central part of cell 1st A; outer radial field chiefly of the ground, including cell Sc-., most of /?.., and a subbasal brightening in cell /?3; veins brown, obliterative sections very extensive, especially in the veins that enclose cell 1st Mo. Veins posterior to R glabrous. Venation: Rs very long, about two and one- half times m-cu; petiole of cell M] shorter than m. Abdomen dark plumbeous gray, basal tergite paler gray; poster- ior borders of both tergites and sternites very narrowly obscure yel- March 28, 1969 species of nearctic tiphlidaf, 3 low. Male hypopygiuni with tergite relatively nan'ow. transverse, posterior border with three U-shaped emarginations to produce two narrow acute intermediate lobes and broader lateral ones, the mesal borders of the intermediate pair microscopically toothed, of the later al pair with a pale plate; vestiture of tergite relatively abundant but very short and inconspicuous. Ninth sternite with lobes elongate- oval, with long yellow setae. Basistyle oval, entire. Outer d'stistyle small, long-oval, with weak delicate setae; inner style with beak flattened, pale, tip obtuse; lower beak blackened, obtuse, posterior crest conspicuous, with darkened parallel lines at base; region of outer basal lobe a small plate that narrows into an acute black spine. Aedeagus long and very stout. Eighth sternite transverse, posterior border convexly rounded, medially with a triangular membranous area; setae very small and sparse, with a group of longer and more conspicuous yellow setae adjoining the membranous area. Habitat. — Alaska. HoLOTYPE, Muldrow Glacier, McKinley National Park, July 19, 1952 (D. L. Carson). The specific name 'denali is that of the native name for Mount McKinley, Denali, 'Home of the Sun'. I am referring this fly to the subgenus Arctotipula despite the differences in hypopygial structure from the subgenotype and allied species. The virtually glabrous body similarly is discordant in this subgenus. The wing pattern is ap- proached by that of Tipula {Arctotipula) twogwoteeana Alexander of the higher Rocky Mountains of Colorado and Wyoming which has the hypopygial structure quite different, being more suggestive of species in the subgenus Sinotipula Alexander. Tipula {Arctotipula) epios, n.sp. Allied to thulensis, differing chiefly in hypopygial characters, especially the acutely pointed lobes of the ninth tergite and the broad outer dististyle. Male. — Length about 14 mm.; wdng 15 mm.; antenna about 4 mm. Frontal prolongation of head relatively short, about one-half the remainder, light gray; dorsal surface with long black setae, nasus long and stout; palpi black. Antenna black throughout; flagellar segment subequal to their longest verticils, basal enlargements poorly to scarcely developed. Head gray, front and orbits light gray; vertex with abundant long erect black setae, lacking on midarea; eyes rela- tively small, anterior vertex correspondingly broad. Pronotal scutum gray, with long erect setae, scutellum brownish gray, the angles more reddened. Mesonotal praescutum light gray with four darker gray stripes, the intermediate pair narrowly sepa- rated by a central ground stripe without setae, remainder of ground areas with abundant long erect setae; scutum light gray, each lobe with two separate darker gray areas, vestiture short and very sparse; scutellum dark gray with very long setae, parascutella glabrous; postnotum uniformly gray, mediotergite with very long setae, pleuro- The Great Basin Naturalist 4 CHARLES P. ALEXANDER Vol. XXIX. No. 1 tergite glabrous. Pleura gray, doropleural region buffy yellow; sternopleurite and metapleura with long setae, lacking on meron. Halteres with stem brownish yellow, knob clearer yellow, base weak- ly darkened. Legs with coxae gray, setae very long; trochanters blackened, gray pruinose; femora brownish yellow, tips blackened; tibiae yellowish brown, darker outwardly; tarsi black; claw of male with a small triangular tooth at near midlength. Wings subhyaline to weakly tinted, cell Sc more yellowed; stigma oval, brown; veins light brown. Veins posterior to R chiefly glabrous, with trichia on R2+,. distal section of /?,+-, and restrictedly near outer end of 2nd A. Venation: Petiole of cell M, shorter than w; M^+4 short, about one- half the basal section of Mi+j or less. Abdomen dark plumbeous gray, extreme borders of the segments yellowed; hypopygium blackened. Male hypopygium with tergal lobes acute, tips pointed; median emargination broadly U-shaped, its diameter subequal to that of the lateral lobe. Outer dististyle very broad, the greatest width about three-fourths the length; inner style with lateral spine blackened, slender, gently curved. Habitat. — British Columbia. HoLOTYPE. cf , Alaska Highway. Mile 316, along 107 Creek, June 26, 1952 (M. E. Smith). Among the numerous members of the subgenus the present fly is closest to Tipula {Arctotipula) thulensis Alexander, still known only from Baffin Island, Canadian Northwest Territories. It differs especially in details of hypopygial structure, as described. None of the northern Palaearctic members of the subgenus has the tergal lobes acute as in the present fly. Tipula {Arctotipula) mckinleyana, n.sp. General coloration of head and thorax gray, praescutum with four poorly differentiated darker gray stripes; antenna of male relatively short; wings faintly darkened, the long-oval stigma solidly darkened; male hypopygium with beak of inner dististyle relatively slender, on side before apex with a low blackened flange, margin at base of beak with a powerful broad-based lobe that narrows into a strong black spine, margin of style with one or two more basal spinous points. Male. — Length about 14 mm.; wing 15.5 mm.; antenna about 3.3 mm. Frontal prolongation of head gray above, more brownish black beneath; nasus long and stout, with long black setae; palpi brownish black. Antennae relatively short; scape dark brown, sparsely prui- nose, pedicel brown; flagellum black, segments without basal enlarge- ments, slightly exceeding their longest verticils. Head with front and the broad orbits clear light gray, posterior vertex darker gray, with numerous relatively short black setae, midregion glabrous, light brown; ventral surface of head with very long pale setae. Pronotal scutum dark gray, scutellum yellowed. Mesonotal prae- scutum light gray with four poorly differentiated darker gray stripes; March 28, 1969 species of nearctic tipulidae 5 vestiture of interspaces long, erect; scutum almost uniformly dark gray, vestiture restricted to sparse long setae on the posterior callo- sities; scutellum brownish gray, with long setae. j)arascutella paler gray; mediotergite gray, with sparse long setae, pleurotergite gray. Pleura gray, glabrous; dorsopleural membrane buffy yellow. Hal- teres with stem pale brown, yellowed at base, knob darker, apex obscure yellow. Legs with coxae gray, with long j)ale setae; tro- chanters dark gray; femora yellow, tips conspicuously blackened; tibiae obscure yellow, darker outwardly; tarsi dark, claws of male toothed. Wings faintly darkened, stigma long-oval, dark brown; veins brown, those in costal and prearcular fields light brown. Veins pos- terior to R essentially glabrous, with three or four trichia on distal section of /?,+:, and still more sparsely on 2nd A. Venation: Rs about two and one-half times m-cu; cell ist M. long, nearly parallel-sided. Abdomen dark brownish gray, posterior borders of tergites ob- scure yellow, of the sternites more narrowly so; hypopygium brown- ish black, tergal lobes and styli paler. Male hypopygium with tergite longer than broad, posterior third with two broad lobes that are separated by a very narrow emargination, inner edges of lobes and outer half of tergite with abundant black setae. Outer dististyle broadest at near midlength, the greatest width at near two-thirds the length; inner style with beak relatively slender, with a small blackened lateral flange beyond midlength; posterior margin of style with one or two basal spines and an outer very powerful broad-based lobe that bears the sensory area at its base, thence narrowed into a strong blackened spine that is directed outwardly. Eighth sternite transverse, posterior border nearly truncate, narrowly membranous, outer half of plate with numerous moderately long setae. Habitat. — Alaska. HoLOTYPE. Sable Pass. McKinley National Park. July 20, 1952 (M. E. Smith). Tipula (Arctotipula) mckinleyana differs from other generally similar species chiefly in details of structure of the male hypopygi- um. particularly the tergite and inner dististyle. The most similar species is T. {A) smithiae Alexander which differs in the wing coloration and in the hypopygium, especially the quite different in- ner dististyle. Tipula (Platytipula) knowltoniana, n.sp. Size small (wing about 10.5 mm.); mesonotal praescutum brown- ish gray with four darker brown stripes. i)leura light gray; wings tinged with brown, costal border darker brown; abdominal segments with a darkened longitudinal central line; male hypopygium with tergal lobes appearing as broad circular blades that are bordered by black, at base of each on lower surface with a slender blackened rod; inner style with beak stout, disk with a conspicuous blackened bilobed structure. Male. — Length about 13 mm.; wing 10.5 mm. Female. — Length about 14 mm.; wing 10.5 mm. The Great Basin Naturalist 6 CHARLES P. ALEXANDER Vol. XXIX, No. 1 Frontal prolongation of head light gray above, brownish yellow laterally; palpi brownish black. Antennae with scape and pedicel brownish yellow; flagelluni broken. Head gray, orbits and sides of vertical tubercle more yellowed; a vague central darkening from summit of tubercle caudad almost to occiput. Cervical region yellow. Pronotal scutum restrictedly yellowed, with three extensive gray areas, scutellum yellowed medially, sides gray. Mesonotal praescutum brownish gray with four darker brown stripes, the intermediate pair confluent at anterior ends, divided at near midlength, not reaching the suture behind; posterior sclerites of notum gray, each scutal lobe with a darkened spot laterally be- hind the suture, parascutella more yellowed. Pleura light gray, dor- sopleural membrane yellow. Halteres with stem light brown, knob dark brown. Legs with coxae light gray; trochanters yellowed; fe- mora brown, more yellowed basally, tibiae brown, tarsi passing into brownish black; claws of male small, simple; vestiture of legs of fe- male long and erect, much as in perhirtipes. Wings tinged with brown, cells C and Sc conspicuously darker brown; stigmal region chiefly obscure yellow, with a more darkened cloud at either end, proximally including 5co, distally involving R^ and free tip of ^Sc^; veins brown. Sparse macrotrichia on veins R.u /?4+5. M, and M . in male, in female more sparse and restricted to outer ends of veins /?3 to Ml. Venation: Rs and /?o+:i subequal; petiole of cell Mi from about one-third to one-half the length of the cell. Abdominal tergites yellowish brown, sternites paler, both with a narrow central dark brown longitudinal stripe that becomes ob- solete at about the seventh segment. Male hypopygium with tergal lobes appearing as broad circular pale brown blades with narrowly blackened margins, the intervening emargination subrectangular; each lobe at base of lower margin with a slender blackened rod. Outer dististyle relatively small, about three times as long as broad, tip obtuse; inner style with beak stout, on disk of style with a conspicu- ous blackened structure, its outer part unequally bilobed. Habitat. — Utah. HoLOTYPE. d", Farmington, Davis Co., September 23, 1967 (G. F. Knowlton). Allotopotype, 9 , pinned with type. I take great pleasure in naming this fly for my longtime friend and colleague. Dr. George F. Knowlton. to whom much of our present knowledge of the crane flies of Utah is due. The fly is generally similar to the economically important Smoky Crane fly, Tipula {Platytipula) cunctans Say, differing evidently in hypopygial structure. A few further American members of the subgenus bear a resemblance to these, the one most similar to the present fly being T. (P.) perhirtipes Alexander which still is known only from the female type taken in Kennebec County. Maine, differ- ing in its larger size and in slight details of coloration, wing vena- tion and trichiation of the wing veins. It is believed that the discov- ery of the male sex of the eastern species will provide further char- acters for the separation of the two flies. March 28, 1969 species of nearctic tipulidae 7 Tipula (Sinotipulo) denningi, n.sj). Belongs to the commiscibilis group, allied to josephus, differing evidently in hypopygial structure, especially the tergite and disti- styles. Male. — Length about 20-21 mm.; wing 19-20 mm.; antenna about 3.0-3.5 mm. Female. — Length about 18 mm.; wing 22 mm. Frontal prolongation of head dark brown, base yellowed; nasus long and slender; palpi brown. Antennae with scape and pedicel yellow, flagellum black; flagellar segments shorter than their verti- cils. Head light grayish brown, orbits and lateral parts of anterior vertex slightly more yellowed; vertex with a narrow dark brown median vitta. Pronotal scutum light gray, with three brown areas; scutellum and pretergites light yellow. Mesonotal praescutum brownish yellow with four gray stripes that are narrowly margined with black, lateral borders broadly blackened; each scutal lobe with two darkened areas, the major inner one oval, gray, bordered with darker, central area obscure yellow; scutellum light brown with a narrow central dark- ened line, parascutella pearly yellow; mediotergite gray with a darkened central area, pleurotergite obscure yellow, patterned with brown. Pleura obscure yellow, mesepisternum variegated with gray; dorsopleural membrane light yellow. Halteres with stern yellow, base of knob brown, apex broadly light yellow. Legs with coxae yellow, patterned with brown; trochanters yellow; femora and tibiae obscure yellow, tips blackened; tarsi light brown; claws of male small, simple, nearly straight. Wings brownish gray, very incon- spicuously patterned with pale brown and yellow; costal field yel- lowed; stigma oval, brown; disk with pale brown and yellow mark- ings, the latter near outer end of cell M adjoining vein cu, and in cell Cu at either end of a darkened area at near one-third the length of cell; beyond cord, with conspicuous pale yellow seams along veins and marginally at centers of cells; veins brown. Costal fringe short and dense; trichia of veins Sc and R abundant, /?.,^r. with numerous trichia on more than outer half. Venation: Ra about one- third longer than /?•_.+;!• Abdominal tergites obscure orange yellow with a broad brown central stripe and narrow darker brown sublateral lines, extensively interrupted at bases and apices of segments, lateral borders narrowly yellow; sternites yellowish brown, posterior margins of intermediate segments yellow, narrower on outer sternites. Male hypopygium with lateral tergal arms unequally bilobed, with dense black setae, median area pale. Dististyles very. unequal, outer style very large, conspicuously bilobed. provided with long black setae, upper arm narrower, terminating in a microscopic black jioint. near base with two blackened lobes, one glabrous, the other with abundant black setae; inner style nmch smaller, body with long black setae, rostrum long and slender. Phallosome a strong blackened horn, with a smaller The Great Basin Naturalist 8 CHARLES P. ALEXANDER Vol. XXIX. No. 1 basal point. Eighth sternite with posterior border truncate, unmodi- fied. Habitat. — Nevada. HoLOTYPE, (S , South Fork of Humboldt River, Elko County. August 27. 1967 (D. G. Denning). Allotopotype. 9. with type. Paratopotypes, 2 cT cT . This interesting crane fly is dedicated to the collector, Dr. Donald G. Denning, outstanding student of the North American Trichoptera. The nearest relative is Tipula (Sinotipula) josephus Alexander, of eastern Oregon, readily distinguished by the structure of the hypo pygium. particularly the tergite and dististyles. T. (S.) commiscibilis Doane is more distantly allied. Tipula (Eremotipula) eurystyla, n.sp. Size medium (wing of male 14 mm.); general coloration of thorax light gray, praescutum with narrow intermediate pale brown stripes; antennal flagellum black, segments incised; wings pale brownish gray, prearcular and costal fields yellowed, stigma light brown, veins brownish black; male hypopygium with tergal canthi small, tips obtuse; outer dististyle very broad, especially outwardly, diameter at apex nearly equal to the length; posterior margin of eighth sternite with long yellow setae. Male. — Length about 14.5 mm.; wing 14 mm. Frontal prolongation of head stout, slightly exceeding the re- mainder; nasus virtually lacking, represented by a small tubercle that bears a few long setae; prolongation brown, gray pruinose above, polished beneath. Antennae with scape and pedicel light yellow, flagellum abruptly black, segments with basal enlargements well- developed to present an incised appearance. Front and anterior vertex yellow; posterior vertex more grayish yellow with indications of a capillary darker median line. Prothorax light yellow, including the scutellum and dorsopleural membrane. Mesonotal praescutum light gray with intermediate pale brown stripes that are narrower than the broad ground interspaces, lateral stripes very pale; pseudosutural foveae reduced to small shallow pits; posterior sclerites gray, each scutal lobe with two pale brown areas, the anterior one very small; scutellum and medio- tergite with a poorly indicated darkened median line, parascutella more yellowed. Pleura gray. Halteres with stem yellow, knob brown. Legs with coxae gray; trochanters yellow; femora obscure yellow, tips darker; tibiae yellowish brown, darker outwardly, tarsi passing into black; claws of male with a strong tooth. Wings pale brownish gray, prearcular field, together with cells C and Sc yellow, stigma light browTi, cell Sci above it more yellowed; outer ends of radial cells and extensive clouds in both anal cells very slightly darker than the ground; obliterative area at cord whitened, incon- spicuous; veins brownish black, much paler in the brightened costal field. Vein 1st A without trichia, 2nd A with these numerous and well distributed, extending basad almost to the arculus. Venation: March 28, 1969 species of nearctic tipulidae 9 Petiole of cell Mi shorter than the oblique m; m-cu shortly before fork of A/:,+4. Basal abdominal tergites light brownish gray, remaining tergites obscure yellow, the more proximal ones with indications of three brownish gray stripes, outer segments more uniformly yellow; ster- nites yellow, with abundant small erect dark setae. Male hypojiygi- um with subtergal })rocess of tergite elongate, the slender outer half pale and more membranous; canthi small, outer j)art narrow, apex obtuse. Outer dististyle distinctive, very broad, widened outwardly, apex nearly truncate; the diameter across apex nearly equal to the length of the style; inner style with dorsal crest strongly rounded, blackened; beak obtuse, lower beak very stout; outer basal lobe sub- oval, in size and outline not greatly different from the outer style. Eighth sternite with caudal margin fringed with very long yellow setae, none conspicuously enlarged. In the unique type the sternite is damaged but appears to have posterior lateral lobes that bear unusually long setae, with a further development of long setae be- tween these groups. Habitat. — Utah. HoLOTYPE, cT. Dixie State Park, Washington County, April 24, 1968 (G. F. Knowlton and D. W. Davis). The most similar species appears to be Tipula {Eremotipula) mitrata Dietz, of New Mexico, which is known to me only from the original description. From this the species appears to differ in colora- tion and structure of the antennae, coloration of the wings, and in details of hypopygial structure. The outer dististyle of the hypo- pygium in the present fly shows the maximum breadth of any species in the subgenus. Gonomyia (Idiocera) per simplex, n.sp. In general appearance most as in coloradica and gothicana, especially in the unpatterned wings; male hypopygium with all three dististyles simple. Male. — Length about 6 mm.; wing 5 mm. Described from alcoholic material. Rostrum and palpi brown. Antennae black, proximal half of scape brownish yellow; flagellar segments oval, the outer ones more elongate. 1 lead dark brown, anterior vertex, sides of vertical tubercle and the genae yellowish gray- Pronotal scutum yellow, patterned with dark brown, scutellum yellowed. Mesonotal praescutum dark brown, lateral borders and an isolated area in humeral region light yellow; scutal lobes dark brown; scutellum brown. i)osterior border yellow; parascutella. pleurotergite and lateral borders of mediotergite light yellow. Pleura dark brown, dorsopleural region and a broad longitudinal stripe whitened. 1 lal- teres with stem j)ale. knob weakly darkened. Legs with coxae yel- lowed, fore pair slightly more infuscated; trochanters yellow; femora light brown, slightly darker near tips; remainder of legs brown. Wings subhyaline, unpatterned except for the small pale brown The Great Basin Naturalist 10 CHARLES P. ALEXANDER Vol. XXIX. No. 1 stignia, prearcular and costal fields slightly more yellowed; veins pale brown. Longitudinal veins beyond cord with trichia except /?,,. also occurring on Rs, extreme outer end of basal section of Cui and the distal third of ist A. Venation: Veins /?uj and R^ contiguous at margin; m-cu more than its own length before fork of M. Abdomen dark brown, pleural membrane yellowed. Male hypo- pygium with outer lobe of basistyle broadly obtuse, with abundant long setae. All three dististyles simple; outer style longest, appearing as a slender pale spine that narrows to the long terminal point; inter- mediate style blackened on outer part, similar in shape to the outer style but shorter; inner style very pale, widened basally. outer end slender, blackened. Aedeagus of unique type broken. The inter- mediate styles of the two sides are unequal, one being only about one-half the size of the other, this presumably representing an ab- normal condition. Habitat. — Utah. HoLOTYPE, alcoholic cT- Fish Creek, Sevier County, June 21. 1967 (C. D. Hynes). The most similar regional species include Gonomyia (Idiocera) color adica Alexander an,d G. (/.) gothicana Alexander, both quite different in hypopygial structure, especially the dististyles, as described. References Lackschewitz, Paul. Das genus Tipula (Diptera Nematocera) in der Arktis und dem borealen Waldgebiet Eurasiens. Trav. Inst. Zool. Acad. Sci. U R S S, 4: 246-312, 34 figs, (with numerous subfigs); 1936. Savtshenko, Eugen N. (Savchenko) Fauna USSR, Diptera II, no. 3. Fam. Tipulidae, Subfam. Tipulinae, Genus Tipula Linn, (part l)-in Russian. Zool. Inst. Akad. Nauk, S S S R (Moscow), N. S., No. 79: 1 - 486, 295 figs.; 1961. Tl IE BUPRESTIDAE AND CLERIDAE OF THE NEVADA TEST SITE (COLEOPTERA) ' William F. Barr" The collecting phases of the comprehensive ecological investiga- tions conducted under the auspices of Brigham Young University at the Nevada Test Site in southern Nye County, Nevada, as reported by AUred. Beck and Jorgensen (1963a) yielded relatively few specimens of the beetle families Buprestidae and Cleridae. This is somewhat surprising inasmuch as these groups are usually considered to be major components of the Coleopterous fauna occurring in the desert and adjacent mountainous areas of the southwestern United States. However, several of the collections that were made do provide new or otherwise significant distributional or bionomical information for some of the species encountered. Therefore, a preliminary listing of the species of these two families taken at the Test Site along with a presentation of the available collection information seems war- ranted at this time. For the exact location of collection sites and areas as listed herein, reference must be made to the papers by Allred. Beck and Jorgensen (1963b) and Knight (1968). Appreciation is expressed to Drs. D. M. Allred and the late D. E. Beck of Brigham Young University for allowing me the oppor- tunity of studying their material. This material was collected under Contracts AT( 11-1) 786 and AT(11-1)1326 between the Atomic Ejiergy Commission and Brigham Young University. Buprestidae Hippomelas {Gyascutus) near obliterata LeConte Specific determination of the 14 specimens taken at the Test Site is not possible at this time. Perhaps they represent one of the several species described by Casey (1909) from southwestern Utah which have been relegated to synonymy in the most recent catalogs. Un- fortunately. Casey's descriptions are not sufficient in their charac- terization of important features to allow identification of the Test Site material and I have not had opportunity to make comparisons with his type material. The Test Site collections were made between July 2 and August 2 in 1960, 1961. and 1962, at 9 and 9.5 miles N of Well 3B in a Coleogyne habitat, in the environs of Well 3B in a Grayia-Lycium 'Published with the approval of tlie Direttor of the Idalio Agi-itullural F,xpcrin\pnt Station js Research Paper No. 780. 'University of Idaho, Moscow. 11 The Great Basin Naturalist 12 WILLIAM F. BARR Vol. XXIX. No. 1 community, at 1 0 miles NW of Mercury and in the environs of Well 5B in a Larrea-Franseria community. Melanophila consputa LeConte Three large specimens, ranging in length from 12 to 14 mm., were taken in the euAdrons of Mercury on Larrea divaricata (DC.), at 10 miles NW of Mercury and at Ground Zero in a can pit- trap in a Grayia-Lycium community. Collection dates were July 8, 1960. and July 22, 1962, and 1965. M. consputa is known to develop only in coniferous trees, conse- quently the occurrence of specimens in desert areas of the Test Site some distance from a coniferous habitat may seem unusual. How- ever, these specimens probably were attracted to smoke or fumes that were present in the desert areas. Such materials are known to be highly attractive to M. consputa and related species. Melanophila pini-edulis Burke This uncommon species is known from the intermountain West and adjacent regions, but has not been reported specifically from Nevada. One specimen was collected in Area 18 on June 20, 1965, and was associated wdth Pinus monophylla Torrey and Fremont. Anthaxia {Haplanthaxia) deleta deleta LeConte One specimen of this common and wide-ranging subspecies was taken in Area 12 on June 11, 1965, from Cowania stansburiana Torrey in a Juniper-Pinyon community. Chrysobothris cuprascens LeConte Six specimens were collected at Rainier Mesa on June 15, 1964, from Pinus monophylla Torrey and Fremont and Juniperus osteo- sperma (Torrey). They are assigned to C. cuprascens rather than to the closely related C. semisculpta LeConte on the basis of host plan.t association and geographic distribution. According to Fisher (1942) these two species are doubtfully distinct. Chrysobothris arizonica Chamberlin A single specimen, tentatively assigned to this species, was col- lected along the Basalt Area road, 12 miles NW of Tippipah Spring in a Grayia-Lycium community on July 13. 1964. from Baileya pleniradiata Harvey and Gray. The finding of C. arizonica on this plant probably constitutes a visitation rather than a host record. Chrysobothris platti Cazier This species has not been recorded previously from Nevada. One female was collected in the environs of Tippipah Spring on July March 28, 1969 buprestidae & cleridaf. in nkvada 13 23. 1965. from Ephedra viridis (yoville which uncloubtcdly is a host of this beetle. Acmaeodera lanata Horn A single specimen of this well-known southwestern species was collected in Area 16 on June 11, 1965. from Dalea polyadenia Torrey. The larva of this species is known to bore in the roots and lower stems of Ephedra spp. Acmaeodera purshiae Fisher Five specimens of this attractive species were collected. Three were taken in the environs of Tippipah Spring on June 14. 1965, from Fallugia paradoxa (D. Don), one was found 10 miles NW of Mercury on June 20, 1965, on Purshia glandulosa Curran and one was taken in the Mid Valley Area on July 28. 1962, and was associated with P. tridentata (Pursh). This species has been recorded previously from several areas of California and Oregon and from the Reno area of Nevada. Its only known host plant is P. tridentata. Acmaeodera diffusa Barr, n. sp. (Fig. 1) Acmaeodera variegata, auctorum Male. — Medium-sized, moderately robust, black; pronotum blackish-bronze with a small yellow spot at sides immediately be- hind middle; each elytron with four transverse irregular straw- colored spots extending from lateral margin to near suture, first spot in front of basal fourth, second spot in front of middle and anteriorly oblique on disk, third spot in front of apical fourth and anteriorly oblique on disk, fourth spot in front of apex, small and oblique; upper surface moderately clothed with rather long erect and suberect brown hairs; ventral surface and legs moderately clothed with suberect whitish hairs. Head densely punctured, punctures small and deep; vertex with- out a median carina; front convex except upper portion obliquely flattened; clypeus with front margin broadly, subtriangularly emar- ginate; antenna shining, extending to about hind margin of proster- num, serrate from fifth segment, outer segments slightly wider than long. Pronotum slightly less than twice as wide as long, irregularly convex with a shallow transverse depression behind front margin, a small transverse median depression in front of base, a very faintly indicated median longitudinal depression in front of middle and a broad shallow depression surrounding the conspicuous subbasal pits; sides arcuate, widest at about basal third; lateral margins very slightly reflexed. visible from above on anterior half; front margin very broadly and feebly triangularly lobed at middle; surface more The Great Basin Naturalist 14 WILLIAM F. BARR Vol. XXIX, No. 1 coarsely and densely punctured than on head, becoming sub-reticu- late towards sides. Elytra subequal in width to pronotum; disk irregularly de- pressed and flattened except for slightly elevated area near sides at basal fourth and for the narrowly elevated suture on apical three- fourths; sides nearly vertical, when viewed from above, feebly nar- rowing at basal fourth, slightly expanded at middle, and gradually evenly narrowing to conjointly rounded apices; front angles rectan- gular when viewed from the side; lateral margins broadly bisinuate when viewed from the side, most deeply emarginate at basal fourth, coarsely serrate on apical half; surface deeply punctured, slightly roughened at extreme base, strial punctures about subequal to those on thorax becoming smaller apically, interstrial spaces flattened with inconspicuous tiny punctures, third interstrial space feebly elevated, ninth interstrial space elevated at extreme base. Ventral surface. — Thorax coarsely, densely punctured; front margin of prosternum retracted, subtruncate, very slightly reflexed on either side of middle. Abdomen rather finely densely punctured except for first sternite which is more coarsely punctured at middle and along front margin; last sternite short and broad, feebly convex at middle and vsdthout a subapical plate or elevation, margins nar- rowly reflexed, lateral margin straight, oblique, hind margin very broadly rounded. Length. — 8.4 mm.; width, 2.9 mm. Ho lo type, male (California Academy of Sciences) from Highland Range, above Mendha, Lincoln County, Nevada, July 9, 1965 (W. F. Barr) . Two hundred and twenty- three paratypes from type locali- ty July 9, 1965 (W. F. Barr and R. L. Westcott), and June 25, 1966 (E. J. Allen, W. F. Barr, D. S. Horning, Jr., R. L. Westcott and R. L. Penrose), most specimens collected from the flowers of Opuntia sp. and Sphaeralcea sp., others on the flowers of Chaenactis sp., Garrea sp. and Calochortus sp. One paratype from Nevada Test Site, Mer- cury, Nevada, June 11, 1965. on Viguiera multiflora (Nutt.) Blake. Ten paratypes from Pine Valley, Washington County, Utah. June 2. 1960 (Verity and Raven), and from the same locality. 31 para- types, June 12 and 14, 1961 (D. W. Davis and B. Haws), one para- type June 25, 1948, and one paratype June 27, 1933 (J. T. Howell). Paratypes in the collections of the American Museum of Natural History, California Academy of Sciences, IjOs Angeles County Museum, U. S. National Museum, Brigham Young University, Uni- versity of Idaho, Utah State University; W. F. Barr, F. M. Beer, D. S. Horning. Jr., J. N. Knull, G. H. Nelson, R. L. Penrose, D. S. Verity, and R. L. Westcott. Many additional specimens have been examined which have not been designated as paratypes. Distributional information from these specimens is as follows: Arizona: Betatakin Cyn.; Navajo National Monument; Grand Canyon; Jacob L^ake; Kayenta, Navajo County; Navajo Mt., Navajo County; Prescott; and near Williams. Colo- March 28, 1969 buprestidae & cleridae in Nevada 15 Fig. 1. Acmaeodera diffusa, new species, dorsal view of holotype. RADO: Durango; Glenwood Springs; Meeker; and Mesa Verde. Utah: American Fork Canyon; Aspen Grove. Timpanogos; Beaver Canyon; Beaver Cr., Kamas; Bryce Canyon; Cainville; City Cr. Canyon; Dugway; Emigration Canyon, Salt Lake County; Escalante; Farmington, Davis County; Fort Douglas; Fruita; (ilendale. Tlanks- ville; Indianola; Jordan River; Lehi; Little Cottonwood Canyon, Wasatch Mountains; Mount Dell Cr.. Salt Lake City; Mt. Nebo. Juab County; Mt. Timpanogos; North Fork of Provo Canyon; Oak Creek Canyon; Ogden; Park City; Parley's Canyon; The Pass. Table Cliff Mountain. Garfield County; Pay son Canyon, Utah County; Provo; Provo Canyon; Red Butte; Rock Canyon, Provo; St. George; The Great Basin Naturalist 16 WILLIAM F. BARR Vol. XXIX. No. 1 Salt Lake; Salt Lake City; Spanish Fork; Stockton; Vivian Park; Wasatch Mountains; Zion Lodge; Zion National Park. A. diffusa is a well-known species that has a wide distribution range in the western United States. It is especially abundant in the Intermountain Regions. In most of the literature and in most collec- tions it is referred to as A. variegata LeConte, but that name must be utilized for another distantly related species that occurs in New- Mexico and Arizona. This species may be separated from other known species by the lack of a subapical plate or elevation on the shortened and broadly rounded last abdominal sternite, by the irregularly flattened elytral disk and by the coarsely and densely, nearly cribrately punctured pronotmn which usually is of a dark bronzy color. The yellowish elytral markings, consisting of three pairs of fasciae and a pair of subapical spots, although distinctive, are variable. These markings usually are irregular and interrupted at the suture, but may be broken, reduced or greatly expanded. The pronotal spots also are of a variable nature. They exhibit considerable difference in size, may be present on one side of the pronotum or may be entirely absent. In the case of the type series these spots are present on approximate- ly 70 percent of the specimens. Acmaeodera sp. Four specimens belonging to the retifer species complex were taken in an Artemisia community 4.4 miles S of Tippipah Spring and at Tippipah Spring on June 13, 1964. They were found on Argemone corymnosa (Greene) and Eriogonum fasciculatum Benth. The retifer complex is in need of a thorough taxonomic study before names can be assigned to its many populations that occur in the Pacific Coast and intermountain states. Acmaeodera immaculata Horn One specimen of this widespread Great Basin and Mohave Desert inhabitant was collected 4.4 miles S of Tippipah Spring in an Artemisia community. It was found on Baileya pleniradiata Harvey and Gray. In southern Idaho A. immaculata is known to develop only in the roots of Eurotia lanata (Pursh), but adults are frequent- ly encountered on the flowers of a variety of plants including the Compositae. Agrilus pubifrons Fisher This species, previously known from southern Idaho and eastern Oregon, is recorded from Nevada for the first time. Four specimens were taken at the Test Site in Area 12 and in Area 18 on June 11, July 27 and August 7. 1965, on Chrysothamnus visidiflorus (Hook.), C. parryi (A. Gray) and Grayia spinosa (Hook.). C. viscidiflorus is its only known host plant. . March 28. 19()9 buphkstidak & clkkidak in nkvada 17 Agrilus felix Horn One specimen, tentatively identified as this species by J. N. Knull, was collected at 4.5 miles SE of Well 5B on luric 11. lartnient of Animal Science, Brigliani Yoimg University, Provo. Ii.iIk ■'(iiiiiliialc Sliideiil. Dopiirtment of '/.oolonv ami Knloinologv. Urigliam doling I'mversilv. I'rovo, llali "Tliiahenda/.ole i-i an imidazole derivative with the chemical foniuila of J-(4"-thia/olyl )■ hen/imidazole, and a i>rodurt of Merck and Company. Hahway. New Jei-sey. "Haloxon is an organophosphate compound with the chemical fonuula of O.Ocli( Jchloroethyl)- 0-( i-chloro-4-methylcoumarin-7-yl) phosphate, and a product of William Cooper and Nephews, Inc., (Chicago. Illinois. This research was supported in part liv a grant-in-aid from William Cooper & Nephews. Inc., Chicago, Illinois, through Dr. Paul V. Christofferson, D.V.M., Veterinary Director. 35 The Great Basin Naturalist 36 ANDERSON, HOOPES, FOX Vol. XXIX. No. 1 irrigated grass pasture during the entire summer, while others had been used on nutrition experiments, and had been held on drylot only. Those on drylot had only small numbers of eggs or none in the feces. Of those held on pasture, we were able to identify 25 adult sheep that had egg counts varying from 200 to 3500 tricho- strongylid eggs per gram of feces. For the purpose of the experi- ment, these sheep were divided into three groups on the basis of the egg count. Group A. consisting of 8 sheep, had an average e.p.g. of 1028 (range: 200 to 2100) and on 19 October, 1967, each animal was given, by dose syringe. 1 fluid ounce of Thiabendazole mixture, containing 2 gm Thiabendazole per fluid ounce. Group B, consisting of 9 sheep, had an average e.p.g. of 1230 (range: 200 to 3500) and on 19 October, 1967, each animal received 1 fluid ounce of Haloxon containing 1.4 gm Haloxon per fluid ounce. Drug dosages were based on manufacturers' recommendations. Group C, consisting of 8 sheep, which had an average e.p.g. of 1300 (range: 200 to 3400) served as the control group. Fecal samples were collected again 12 days after treatment was given. At that time the average e.p.g. in Group A (Thiabendazole-treated) had dropped to 8 (range: 0 to 100), a 99% reduction in total egg count. Group B (Haloxon -treated) had dropped to 19 (range: 0 to 100), a 98% reduction, and the control sheep had also dropped to an average e.p.g. of 275 (range: 0 to 900). a 79% reduction. The average e.p.g. counts for all three groups of sheep prior to and 12 days after treatment are listed in Table 1. In order to determine which genera of nematodes were affected by the drugs, larval cultures were made from all fecal samples from the 25 sheep prior to and after treatment. Table II shows the numbers of larvae examined and their assignment to various genera, based on the tables prepared for total length and sheath tail length by Dikmans and Andrews (1933) and Keith (1953). Our ranges of total and sheath tail measurements differed slightly from the tables we were using, but the identification of Haemonchus, Chabertia. Ostertagia, Trichostrongylus, and Nematodirus was con- sidered valid. From the results we obtained, it was noted that Thiabendazole was highly effective against Trichostrongylus and Ostertagia, since no larvae of these genera were detected after treatment. The per- cent of Haemonchus larvae constituted 67% of the larvae identified before treatment and 27% of those identified after treatment. The percentage of Chabertia larvae increased from 4% prior to treat- ment to 47% after treatment, and the percentage of Cooperia rose from 7% to 20%. Haloxon appeared completely effective in eliminating Haemonchus, Cooperia and Ostertagia, but not as effec- tive against Trichostrongylus as was Thiabendazole. The percentage of Trichostrongylus in the Haloxon-treated group increased from 14% prior to treatment to 21% after treatment. Oesophagostomum rose from 2% to 5%, and 68% of all larvae identified after treat- ment from the Haloxon-treated group were identified as Chabertia, March 28, 1969 NEMATODES IN SHEEP 37 3 ij « 00 0)\Ci 1-1 ^^ M 4» so Jo S c « g 5 4; « o HW I ^^cj 00 o o CM «0 O O (N t^ ?+t ' xijpau -2| Ji O O _. (8 -S LS C -; (o-f.S tic 5 ^ The Great Basin Naturalist 38 ANDERSON, HOOPES, FOX Vol. XXIX. No. 1 whereas none had been identified in that group prior to treatment. The most significant change in the percentages of the various genera in the control sheep was a decrease in Haemonchus from 68%, prior to the time the two groups were treated, to 39% when the control sheep were sampled afterwards. The percentages of larvae identified as Trichostrongylus and Cooperia showed corres- ponding increases during this period. Discussion and Conclusions Although the variation in nematode egg counts was considerably- greater than would have existed had we infected the sheep experi- mentally with equal numbers of infective larvae, this project, nevertheless, showed that both Thiabendazole and Haloxon are effective anthelmintics against the majority of gastro-intestinal nematodes encountered. It was unfortunate, however, that the problem was identified and started so late in the pasture season, since the marked drop in egg counts in the control sheep undoubted- ly related to decreased numbers of infective larvae being picked up by the grazing sheep at that time of the year. Haemonchus contortus larvae in particular are highly susceptible to colder tem- peratures as demonstrated by the seasonal e.p.g. decline in the control animals, and generally do not develop from the egg to the infective larval stage at mean monthl}^ temperatures of less than 65° F, or when the total monthly rainfall is less than 2 inches per month (Levine. 1963; Kates, 1965). The mean monthly tempera- tures in a standard weather shelter in Provo for June. July. August. September, and October, 1967, were 62.3, 73.3, 72.3. 62.6. and 47.9 F respectively. The total precipitation for those five months was 1.26, 0.96, 0.16. 0.77. and 0.55 inches, respectively. Therefore, the conditions for the development and survival of the free-living stages of Haemonchus, as far as available moisture was concerned, would appear to be considerably less than optimum for these months. The precipitation for these months in 1967 did not differ markedly from the long-term averages for Provo for the four main pasture months of June, July. August, and September, since these are all less than 1 inch per month. During this same period, however, farmers in this area put as much water on their lands through irri- gation as that comparable to 20 inches of rainfall. Some of the lowland pastures are frequently completely saturated by irrigation water that may be allowed to run for several days in any one pasture location. These conditions of moisture, coupled wdth the fact that the soil temperature measurements may actually be 15-20° F higher than that recorded in a standard weather shelter (Andersen and Levine, 1967) certainly are capable of producing micro- environmental conditions optimum for the development and survival of these nematode larvae. Nevertheless, when the project herein reported was conducted during the late pasture season, the number of larvae available on the pasture would naturally^ be decreasing March 28. 1969 nematodes in sheep 39 duo to low lenipenituros. On iho 1 ^tli and 14th of Sopteniher the minimum daily temperatures in the weather shelter were only 29 and 32° F, respectively, and 6 of the 16 remaining days in Septem- ber had minimum temi)eratures less than 40° F. These low tem peratures. undoubtedly, would decrease the numbers of viable larvae on the pasture, thereby resulting in fewer new infections in the grazing sheep. Had the total egg counts from the control sheep remained at the same approximate level as that before treatment, the efficacy of the two anthelmintics tested would have been much clearer. Since the numbers of larvae recovered from fecal samples fol- lowing treatment was very limited in the two treated grou{)S. the comparison of the effect of the drugs on the specific genera as determined by larval identification must be interpreted provisional- ly. No more than 100 eggs per gram of feces was noted in any of the treated sheep. With such small numbers, the recovery of suf- ficient numbers of larvae for identification after laboratory culture is very difficult, and only a total of 54 infective larvae were iden- tified from these two treated groups. Nevertheless, as mentioned above, the identification of most of the genera was considered valid. Infective Ilaemonchus contortus larvae are particularly easy to identify and the fact that none of these were found in any fecal samples taken from the Haloxon-treated sheep seemed quite signifi- cant. As stated above, one of the main difficulties in using continual chemotherapy as a control measure in parasitism is the frequent development of strains of the parasites resistant to the chemicals being used. Phenothiazine, for example, was first introduced as an anthelmintic in swine by Harwood, Jerstad and Swanson in 1938, and then by a number of authors in 1939 (See Gibson, 1965) as an anthelmintic in sheep. Early rej)orts showed this drug to be 75-90% effective against Haemonchus when used in crude prepara- tions, and later up to 100% effective when used in a micronized- powder form. Strains of Haemonchus resistant to phenothiazine were first reported in 1957 in Kentucky by Drudge, Leland, and Wyant, and later noted by such authors as Enzie et al. (1960) in Maine, and Levine and Garrigus (1961) in Illinois. In the latter case, phenothiazine had been used routinely at the sheep division at the University of Illinois for 19 years before the resistant strain was identified. Thiabendazole was first introduced as an anthelmintic in sheep by Brown et al. in 1961. This drug proved to be an extremely effective broad-spectrum anthelmintic and has been used widely in many geographical locations for treatment of parasitic helminths. Efficacy against Haemonchus in sheep ranged as high as 96-100% (Hebden, 1961; Gordon. 1961). Since that time, however, strain resistance has appeared against this drug also. Smeal ct al. (1968) recently reviewed accounts of resistance to Thiabendazole that have been noted in the United States and Brazil, as well as the work The Great Basin Naturalist 40 ANDERSON, HOOPES, FOX Vol. XXIX, No. 1 they reported on for Australia. Since 27% of the larvae recovered after treatment in the Thiabendazole-treated animals in our project were Haemonchus^ there is at least some suggestion that the Haemonchus in this geographical area are also somewhat resistant to this drug. Since the drug has not been used at the BYU Research Farm, however, such a conclusion would imply that resistant strains have been brought to this area by sheep that have been purchased elsewhere. The efficacy of Thiabendazole against parasitic helminths has been reported in several hundred scientific articles, and annotated bibliographies are available on this subject from Merck and Com- pany, Inc., Rahway, New Jersey. Haloxon has not been tested as widely in the United States, but its efficacy against several genera of gastro-intestinal nematodes in sheep as well-documented by such authors as Armour, Brown and Sloan (1962), Harbour (1963), Barnett, Berger, and Rodrigues (1964). Turk, Galvin and Bell (1965), and Baker and Douglas (1965). In general, these workers found Haloxon to be a highly efficacious anthelmintic against most of the same genera of parasitic nematodes as was Thiabendazole, with the exception that it was not as effective against such genera as Chabertia, the large-mouthed bowel-worm, or Oesophagostomum, the large intestinal nodular worm. Haloxon is apparently hydro- lyzed before it reaches the large intestine, and is therefore more effective against nematodes which occur in the abomasum and small intestine. We also found that Haloxon was not effective against Chabertia and Oesophagostomum^ although as stated earlier, the small numbers of larvae identified suggests that this conclusion be interpreted provisionally. Although comparative studies on the efficacy of phenothiazine were not included in this project, the fact that the animals had been treated routinely with phenothiazine for the past eight years, and yet the fact that severe haemonchosis can occur here, also suggests that strains resistant to this drug exist in this area. Experi- ments involving critical testing where worm counts and speciations can be made at necropsy after treatment with Thiabendazole, Haloxon, and phenothiazine should be conducted, before the problem of possible resistant strains in this area can be resolved. References Andersen, F. L., and N. D. Levine. 1967. Methods and problems in micro- environmental measurements. 111. Vet. 10:10-17. Armour, J.. P. R. M. Brown, and J. E. N. Sloan. 1962. The anthelmintic efficacy of haloxon against the adult and immature stages of gastro-intes- tinal nematodes. Vet. Rec. 74:1454-1457. Barnett, S. F., J. Berger, and C. Rodrigues. 1964. A small controlled trial of the anthelmintics haloxon and thiabendazole in sheep. Afr. Agr. For. J. 29:195-198. Baker, N. F., and J. R. Douglas. 1965. Anthelmintic activity of haloxon in lambs. Am. J. Vet. Res. 26:651-653. March 28, 1969 nematodes in sheep 41 Brown. H. D.. A. R. Mat/uk, 1. R. Ilves, I,. H. Peterson, S. A. Harris, L. H. Sarett, J. R. EfiERTON. J. J. Yakstis, W. C. Campbem,, and a. C. Cuckler. 1961. Aiitipiuasitic drugs. IV. 2-(4'-thia7,ol3'l)-benziniidazole, a new an- thelmintic. J. Am. Chem. Soc. 83:1764-1765. Dikmans. G. and J. S. Andrews. 1933. A compxarative morphological study of the infective larsae of the common nematodes parasitic in the alimentary tract of sheep. Tr. Am. Micr. Soc. 52:1-25. Drudge, J. H., S. E. Lei-and, Jr., and '/. N. Wyant. 1957. Strain variation in the response of sheep nematodes to action of phenotfiiazine. II. Studies on pure infections of Haenionchus contortus. Am. J. Vet. Res. 18:517-325. Enzie, F. D.. M. L. Colglazier, G. E. Wiiitmore, and D. E. Thompson. 1960. Effectiveness of tliree management systems on parasitism in lambs. III. Re- sistance of Haenionchus contortus to phenothiazine. J. Parasit. 46 (suppl.): 41. Gibson. T. E. 1965. Veterinary Anthelmintic Medication. Technical Communi- cation No. 33 of the Commonwealth Bureau of Helminthology. St. Albans, Herts. 206 pages. Gordon, H. McL. 1961. Thiabendazole; a highly effective anthelmintic for sheep. Nature 191:1409-1410. Harbour, H. E. 1963. Expeirence with organo-phosphorus compounds as ant- helmintics. Internat. Vet. Cong. pp. 751-756. Hl^RwooD, P. D., A. C. JERST.^D, AND L. E. Swanson. 1938. The efficacy of phenothiazine for the removal of ascarids and nodular worms from swine. J. Parasit. 24:16-17. Hebden, S. p. 1961. The anthelmintic activity of thiabendazole (MK-360). Austral. Vet. J. 37:264-269. K.\TES. K. C. 1965. Ecological aspects of helminth transmission in domesticated animals. Am. Zool. 5:95-130. Keith. R. K. 1953. The differentiation of the infective larvae of some common nematode parasites of cattle. Austral. J. Zool.. 1:223-235. Levine, N. D. 1963. Weather, climate, and the bionomics of ruminant nema- tode larvae. Adv. Vet. Sci. 8:215-261. Levine, N. D., and U. S. Garrigus. 1961. The effect of Cu-Nic and organc^- phosphorus anthelmintics on phenothiazine-resistant Haenionchus in sheep. Am. J. Vet. Res. 23:489-493. Sme.^l, M. G.. p. a. Gough. a. R. Jackson, and I. K. Hotson. 1968. The occurrence of strains of Haenionchus contortus resistant to thiabendazole. Austral. Vet. J. 44:108-109. Turk, R. D.. T. J. Galvin. and R. R. Beli,. 1965. Comparative tests of the anthelmintics haloxon, phenothiazine and thiabendazole in sheep and goats. Southwest. Vet. 19:44-47. NOTES LEPIDOPTERA OF THE NEVADA TEST SITE^ During ecological investigations by Brighani Young University at the Nevada Test Site between 1959 and 1965, many moths and butterflies were taken, mainly by incandescent and ultraviolet light-traps. Many of these were submitted to Dr. Jerry A. Powell, University of California at Berkeley, who kindly made some general as well as specific identifications as a basis for further studies with this difficult group of insects. These are reported herein. All listings are alphabetically arranged for convenience. Arctiidae Arachnis prob. picta Pygaractia murina Coleophoridae Heliodines nr sexpunctella Scythris (12 spp.) Cosmopterygidae Inga concolorella Geometridae Caripeta sp. Glaucina sp. Phaeoura sp. Semiothisa nr colorata Stenospilates sp. Lasiocampidae Gloveria arizonensis Noctuidae Agrotis ypsilon Conochares nr arizonae Conochares nr hutsoni Grotella sp. Oxycnemis nr gtacillima Phobolosia anfracta Synedoida sp. Triocnemis sp. Papilionidae Cercyonis sp. Pieris protodice Plutellidae Abebaea sp. Cerostoma nr angelicella Cerostoma nr delicatella Cerostoma nr- flavistrigella Plutella maculipennis Pyralidae Dichozoma parvipicta —Donald M. Allred' 'BYU-AEC publication no. COOl 355-20. Dioryctria nr gulosella Etiella zinckenella Eumysia mysiella Heterographis morrisonella Hulstia undulatella Jocara sp. Loxostege albiceralis Nephopteryx bifasciella Ommatopteryx texana Passadena flavidorsella Salebriacus odiosellus Sosipatra rileyeUa Staudingeria albipenella Sphingidae Celerio lineata Sphinx dollii Tineidae Acrolophus laticapitanus Acrolophus variabilis Acrolophus (4 spp.) Dystospasta yumaeella Myrmecozela nr obliquella Tinea sp. Tortricidae Decodes fragarianus Eucosma bobana Eucosma nr bolanderana Eucosma rorana Ofatulena duodecemstriata Phaneta indagatricana Phaneta setonana Platynota labiosana Platynota nr yumana Unplaced Adela punctijerella 42 March 28, 1969 43 WISLOUCHIELLA PLANCTONICA SKVORTZ. (CHLOROPHYTA. VOLVOCALES), A NEW ALGAL RECORD FOR NEVADA III 1925, Skvort/.uvv described a iiioiiotyi)ii genus of Infldf^ellated green algae as W islouchiella planctonica, and according to SniitJi (IQ'jO). the species is known only from California and a few sites in the states of the Mississippi River Valley. The genus is quickly distinguished by its strongly compressed lorica witli broad wing-like expansions on both sides of the massive cup-shaped chloro- plast. Pour projections may be seen; two arise at the proximal end and extend upwards and for-ward slightly beyond the apex of the lorica while the two distal jirojections extend upwards and ba( k from an insertion point near the base of the protoplasm. It is these projections and the wing-like expansions of the compressed lorica that characterize the genus W islouchiella. The Nevada record is based on Reveal 1570, collected at The Reservoir, about 0.5 miles nortli of the Buckboard Mesa Road and about 2 airline miles northwest of VABM Tippipah at an elevation of 5.200 feet, north of Shoshone Mountain. Nye Co., Nevada, 16 July 1968. and deposited in the algal collection at Brigham Young University. This site is a recent man-made reservoir and the collection was made during a dense algal bloom; only the one species was found. — James L. Reveal '•' References Skvortzow, B. B. 1925. W islouchielle planctonica nov. gen. et spec, of Vol. vocales. Proc. Sungari River Biol. Stat. 1:27-29. Smith, G. M. 1950. The freshwater algae of the United States. McGraw-Hill Co., New York, pp. 89-90. 'Laboratory of Nuclear Mediiiiie and Kadialioii Biology, University of California. I.os Angeles. California 90024. Present address: Department of Botany, Brigham Young University, I'rovo, Utah 84«01 . -Work perfonned under Contract No. AT (04-1) Gen-12 between the Universitj' of (California and the Division of Biology and Medicine. United States Atomic Energy Commission. 44 Vol. XXIX. No. 1 THE INFECTION OF IMMATURE AQUATIC INSECTS BY LARVAL PARAGORDIUS ( NEMATOMORPH A ) Most of the hosts lecorded for immature Pragordius sp. have been terrestrial insects (Carvalho, 1942; Hyman, 1951). The discovery of an infection of larval Paragordius in the mayfly Baetis sp. (White, 1966) led me to e.xamine more closely the other aquatic insects collected from Lawrence Creek, Adams Co., Wisconsin. Fifty bottom samples, V^m', collected each month during 1966 supplied the aquatic insects. Aquatic insects found to be infected with larval Paragordius are listed in the following table: Table I List of aquatic insects from Lawrence Creek, Wisconsin, infected with larval Paragordius sp, 1966. % Collection Family Genera Months Infected Baetidae Baetis spp. IV, V 2.1 Leptophlebiidae Leptophlebia sp. IV, V 2.3 Ephemerellidae Ephemerella spp. IV, V. VI 4.1 Corixidae Sigara sp. IV 1.5 Brachycentridae Brachycentrus sp. IV, V, VI 1.2 no pupation Simuliidae Simulium spp. IV, V, VI, VII 2.4 no pupation Of the 83 genera of aquatic insects examined, 6 genera of 4 orders were found to contain lai-val Paragordius. The larval neniatomorphs all appeared to be similar. The characteristics of larval nematomorphs are not well known but only Paragordius varius have been collected from Lawrence Creek. Individuals that were parasitized showed several morphological variations from the non-parasitized individuals of the same genera. The wing pads of the Ephemeroptera nymphs were smaller than the average while parasitized. Simu- liidae larvae were larger than average during June and July. The parasitized Simulliidae and Brachycentridae could not be induced to pupate in the laboratory while the non-parasitized larvae pupated readily. From these observations I conclude that larval Paragordius can infect several different orders of immature aquatic insects of both holometabolous and hemi- metabolous development. — David A. White, Assistant Professor of Zoology and Entomology, Brigham Young University, Provo, Utah. References Carvalho, J. C. M. 1942. Studies on some Gordiacea of Noi-th and South America. J. Parasit., 28:212-222. Hyman, L. H. 1951. The Invertebrates. Vol. III. Acanthocephala Aschelmin- thes and Endoprocta. McGraw-Hill, New York, pp. 455-473. White, D. A. 1966. A new host record for Paragordius varius (Nematomor- pha). Trans. Amer. Microsc. Soc. 85:579. (or7au o The Volume XXIX, No. 2 July 31, 1969 MUS. COMP. ZOOLL LIBRARY. MAR 11971 HARVARD UNIVERSITY Great Basin mmmim Published by Brigham Young University GREAT BASIN NATURALIST Editor: Vasco M. Tanner, Department of Zoology and Entomology Brigham Young University, Provo, Utah Associate Editor: Stephen L. Wood, Department of Zoology and Entomology, Brigham Young University, Provo, Utah Members of the Editorial Board: Ferron L. Andersen (5), Zoology Jay V. Beck (3) , Bacteriology Robert W. Gardner (1), Animal Science Joseph R. Murdock (4) , Botany WiLMER W. Tanner (2) , Zoology, Chairman of the Board Stanley L. Welsh ( 1 ) , Botany Ex officio Members: A. Lester Allen, Acting Dean, College of Biological and Agricultural Sciences Ernest L. Olson, Chairman, University PubUcations, Uni- versity Editor The Great Basin Naturalist Published at Provo, Utah by Brigham Young University Volume XXIX July 31, 1969 No. 2 TTTE ECOLOGY OF THE WESTERN SPO ITED FROG, RAN A PRETIOSA PRETIOSA BAIRD AND GIRARD, A LIFE HISTORY STUDY Ronald L. Morris and Wilmer W. Tanner^ Introduction Numerous individuals have assisted in the preparation and com- pletion of this study. We are indebted to Mr. Lawson Hamblin for allowing free access to his property where the main portion of this study was conducted, and to Dr. Frederick B. Turner for his sugges- tions and review of the manuscript. We also thank Mr. David F. Avery for his help and for the data he furnished for the years 1962 and 1963. and also for photo- graphs taken by him. Thanks also to the other students and staff who have helped in data analysis. Since the turn of the century, the study of amphibian life history has received more attention than before; however, the natural his- tory of many amphibians is still only partially known. Much of our knowledge is based upon laboratory studies where observations have been made on eggs obtained directly from the female as described by Rugh (1948) and as used by Johnson (1965). or directly from the pond as reported by Skousen (1952, unpublished). These types of studies provide for contn)lled conditions thereby giving a low variance to the results. They can also give an actual growth curve rather than an estimated one since the same individuals can be studied continually throughout their larval development. 1 lowever, as stated by Bragg (1940a), to understand the reactions and behavior of an animal within its complex environment, one must still of nec- essity go directly to nature. Therefore, this study is based on an em{)irical approach. Review ok Literature. Since the description of Rana prctiosa Baird and Girard. only limited life history accounts have appeared 'Departnicnl of /oolnpv and Kntoinology, Biigliaiii Young University, I'rovo. Ulali. 45 The Great Basin Naturalist 46 MORRIS AND TANNER Vol. XXIX. No. 2 in the literature as compared to most other species of this genus in North America. Most references are small notes relating to distribu- tion, habitat, or stomach content, and refer to populations occurring in Oregon, Washington. British Columbia, Wyoming, Idaho, and Utah. A brief summary is given by Stebbins (1951 and 1954). Several accounts of R. pretiosa have appeared since the reports by Stebbins. Turner (1957) did a four year study from 1953-1956 on the ecology and morphology of Rana pretiosa pretiosa at Yellow- stone Park in Wyoming, and Johnson (1965, unpublished) worked on the early development, embryonic temperature tolerance, and rate of development of Rana pretiosa luteiventris Thompson, from central Oregon. Rana pretiosa has also been included by Dunlap (1955) and Dumas (1966) in excellent works on the genus Rana. The influence of nerves in limb regeneration was studied by Thorn- ton (1956) on pretiosa tadpoles taken at Moran, Wyoming. Other earlier papers include Svihla's (1935) brief report on the eggs and tadpoles of pretiosa in Washington; Middendorf's (1957) observations on the frog's early spring activities in Montana; Car- penter's (1953a) brief ecological notes on pretiosa in the Grand Teton-Jackson Hole area of Wyoming, and his (1953b) notes on the aggregation behavior of the tadpoles. In a later study on amphibian movement. Carpenter (1954) found that there is a tendency for in- dividuals to return to their original point of capture. Dunlap (1959) described briefly some morphological characteristics of pretiosa found in Deschutes County. Oregon. The first published report of amphibians in Utah was by Yarrow (1875); however, no comprehensive work was done on the popula- tions of Utah Rana pretiosa until Tanner (1931) included them in his work entitled, "A Synoptical Study of Utah Amphibia." The only other reports to include this species are those of Van Denburgh and Slevin (1915), Slevin (1928) who provides a description, and Skou- sen (1952) in which he characterized the eggs and larvae of Utah amphibians. Taxonomic Status Rana pretiosa was first described from Puget Sound, Washington, in 1853 by Baird and Girard. Rana pretiosa luteiventris was later described by Thompson (1913) from Anne Creek, Elko County, Nev- ada. Although R. pretiosa has been recognized as a valid species since its description, the status of the subspecies luteiventris has been ques- tioned by several writers. Slevin (1928), for example, did not separ- ate R. p. luteiventris from R. p. pretiosa. He based this decision upon the work of Van Denburgh and Slevin (1915) which stated that it was not possible to find constant differences in plantar or palmar tubercles between those specimens thought to be R. p. luteiventris from Utah and those R. p. pretiosa from Fort Klamath, Oregon, and Mount Rainer, Washington. Storer (1925) also questioned the valid- ity of the subspecies luteiventris as did Stebbins (1951) when he stated, "it appears to be no more than a slightly differentiated sub- July 31, 1969 ecology of r. pretiosa in utah 47 species of possibly very local occurrence." He did, however, recognize the subspecies luteiventris at this time. In a later work Stebbins (1954) did not recognize luteiventris. and in his latest work (1966) makes no mention of it. Dunlap (1955) did recognize the two subspecies in his work on the variation within the genus Rana and states: R. p. luteiventris may be distinguished from R. p. pretiosa by the dif- ference in coloration and by the foot tubercles. The bright color on the ventral surface is orange-yellow in adult R. p. luteiventris, and bright salmon-red in adult R. p. pretiosa. R. p. luteiventris, furthermore, lacks the tubercle at the base of the fourth toe, which is characteristic of R. p. pretiosa. Dumas (1966) in his study on the Rana species complex also recognized the validity of the two subspecies. Livezey and Wright (1947) in their work on salientian eggs said that the eggs are en- tirely different between the two subspecies. In Utah the subspecies has been recognized as R. p. pretiosa by most writers (V. M. Tanner 1927, Stejneger and Barbour 1943, W. W. Tanner 1940, Stebbins 1951, Schmidt 1953); however, certain variations have made its identification confusing. Skousen (1952) stated that the larvae of R. p. subsp. of Utah do not fit the description of R. p. pretiosa by Svihla (1935), but rather the description of R. p. luteiventris by Thompson (1913) and Svihla (1935). He also stated that the eggs are smaller than those of R. p. pretiosa of eastern Washington, and. therefore, suggested that the Utah population along the Wasatch front be called R. p. luteiventris. In a recent work Dumas (1966) summarized the distribution of R. pretiosa sub- species as follows: Pretiosa (sic) is found from northern British Columbia and south- western Alberta southward through northern Idaho, western Montana, Washington, northern and western Oregon, and extreme northern Cali- fornia. Luteiventris (sic) occurs in southern Oregon, southern Idaho, western Wyoming, and in isolated pockets in northern Utah and northern Nevada. Much of the confusion over the Utah subspecies is well founded and the decision one reaches in classification is largely determined by the stage of the life history which is studied. We have experienced similar difficulties in an attempt to classify Utah pretiosa by the diagnostic features given in the different taxonomic references. Live- zey and Wright (1947) published a classification of anuran eggs of the United States and differentiated the pretiosa subspecies mainly upon: (1) the number of gelatinous envelopes surrounding each egg, and (2) the size of the eggs and number of the eggs per clutch. When special care is used in the observation of the jelly layers. Utah pretiosa key out to subspecies pretiosa becavise of their size and pre- sence of the inner memljrane. The differentiation of larvae is based upon the number and size of labial teeth rows. Tadpoles in this case, as pointed out by Skousen (1952). have two upper rows of teeth and fit the description of luteiventris by Thompson (1913) rather than The Great Basin Naturalist 48 MORRIS AND TANNER Vol. XXIX, No. 2 that of pretiosa by Svihla (1935). The diagnostic characteristics used in the separation of adults are based upon coloration and the presence or absence of tubercles on the inner surface of the feet. The ventral coloration of live specimens range from orange to red which would place them as pretiosa, whereas tubercles are reduced and indistinct which is characteristic of luteiventris. Based upon the above informa- tion and the fact that some authors question the validity of luteivent- ris^ we consider the Utah population to be R. p. pretiosa with a few aberrant characteristics which, as pointed out by Skousen (1952), may be the result of intergradation between the two subspecies. This possibility exists since both subspecies are present in the northern regions of the Great Basin and are approximately equal distances from the Utah population. In either case more work is needed on the taxonomy of the species, and the lines of distribution need to be established. Life History and Ecology Amphibians are used extensively in different experimental fields of biology and many times this is done without an understanding of the activities and life history of these animals in nature. This lack of information may also have a bearing upon other studies and their results. For example, Johnson (1965) studied temperature tolerance and developmental rate of R. p. luteiventris in the laboratory, but was unable to relate these to its distributional pattern based upon the breeding biology because of lack of information on R. p. pretiosa and other western species of ranids. In this study we are concerned with life history and breeding biology of Rana pretiosa pretiosa in Utah. Study involves data which have been collected intermittently from 1962 to the spring of 1968 with the majority of the data collected regularly during spring and summer of 1966. This was done by fol- lowing the activities of frogs from the time they emerged in the spring until offspring metamorphosed and hibernated in the fall. Observa- tions and collections were made at regular intervals throughout this period of activity to provide a continuous record of growth and activity. The study actually began in the spring of 1962 as a research pro- ject by David Avery, but was discontinued when eggs under obser- vation were destroyed by children. The same study was resumed in 1963 except that all observations and measurements were obtained from eggs which were removed from the pond and taken to the lab- oratory where embryonic and larval development were observed in a 44 liter aquarium until metamorphosis was completed. To gain a more complete picture of the life history of the west- ern spotted frog, we obtained permission to study the frogs inhabiting the ponds on the private property of Mr. Lawson Hamblin (study area II) during 1966. This proved to be an ideal site, not only be- cause of protected surroundings, but also because R. p. pretiosa is the only frog to use these ponds for breeding. As a result no difficulty was encountered in keeping separate the eggs and tadpoles from July 31, 1969 ecology of r. pretiosa in utah 49 those of R. pipiens bracliycephala which normally ocx uj)ies the same waters in this area. Extensive observations were made and specimens collected at these ponds during the spring and summer of 1966. This study is supported primarily by these data, supplemented by additional observations made by us and others both before and after 1966. Study Areas Observations on the western spotted frog were made primarily in the vicinity of Provo. Utah, along drainage areas of the Provo River at an elevation of approximately 4550 feet. A population of R. pret- iosa along the San Pitch River three miles north of Fairview\ San- pete County, and one near Mona Reservoir in Juab G)unty (collec- tion records of adults only) are also included. The area used for this study is at the extreme southeastern extension of the range for R. pretiosa (See Stebbins, 1966) and includes those populations which have extended south from Snake River Basin in Idaho into the water courses along eastern edge of the Great Basin and the western front of the Wasatch mountains. All study area were located after much field investigation, and can be characterized by several features which they have in common. Each site at which R. pretiosa has been observed was located, in relation to the local topography, in a low. swampy situation with some type of spring water supply nearby. Except for study area IV all sites were near the base of Provo Bench where water collects as a result of its relative position to the water table. Each observed site is a small permanent pond of water which has a continual source of water. Because of their low level and seep springs inflow, the ponds seldom have an external outlet; therefore, very little move- ment results because of flow of water through them. As a result each pond is made up of standing water with a deep silt or muck bottom in which frogs presumably hibernate during the winter. Stonewort. Chara sp., makes up the dominate aquatic vegetation and forms a complete mat covering over the bottom of the pond. Cat- tails. Typha sp., are present in the deeper parts of each pond, and provide a cool, moist place for adult frogs to feed during the warmer summer months. By the end of June Spirogyra sp. is usually com- mon in water providing an excellent place for hiding and a source of food for developing tadpoles, which can normally be found within or beneath floating vegetation. Study area I was located near the old Provo Brick and Tile Com- pany in a swampy area resulting from several small sj)rings and seepage from higher irrigated lands. The three ponds used as breed- ing sites were all small ponds of standing water with seepage as the only inlet (Fig. 1). Several other jwnds which were interconne<-ted by small streams were present, but none of these were used by the frogs. Study area I has since been filled as a result of construction. 50 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX. No. 2 :<^ Fig. 1. Main breeding pond at study area I. Arrow indicates location of egg deposition. Study area II is located at 2160 N. 750 W., 1 mile northwest of area I on property of Mr. Lawson Hamblin. This site consists of four man-made ponds, only two of which were used as breeding ponds. Pond A (Fig. 2) is the only one continually spring fed and therefore has a temperature several degrees lower than other ponds in this specific area. Pond A measures approximately 5 by 8 meters, and has the smallest surface area. However, it is the deepest pond used for breed- ing at this location. The depth of the water at the north end is ap- proximately 30 cm. and has a rocky bottom. The south end of the pond, where most of the adult frogs are concentrated, is approximate- ly one meter deep and has a muck bottom. A thick growth of cattails July 31, 1969 ecology of r. pretiosa in utah 51 Fig. 2. Pond A at study area II. Arrow indicates location of egg deposition. is present at this end. All the ponds are at the base of a 16 to 20 meter embankment (lake terrace) which extends along the west side. Willows growing thickly along the bank hang over the water for approximately one meter. A field with several species of grasses and weeds borders the ponds from the east. Pond B is located 30 meters north of pond A and is much larger, measuring approximately 12 by 21 meters. Chara sp. completely covers the bottom of the pond with only a thin layer of water appearing above it. The water is 1 5 to 45 cm deep with a muck bottom 60 to 90 cm dee{). Study area III is a drainage area from higher irrigated lands and is located west of Provo along the D. & R.G.W. Railroad tracks at approximately 1000 N. and 2100 W. (Fig. 3). Study area IV (Fig. 4) is the highest elevation 5350 ft., at which observations were made in the Provo River drainage area. It is located on the south fork of Provo River approximately one and one- half miles east of Vivian Park, Utah County. These are permanent spring-fed ponds which have been impounded by man for a water storage area. Several observations were made on a population of Rana pretiosa along the San Pitch River in Sanpete County. This population as reported by Tanner (1940) is the farthest south that this species has been collected. The elevation is approximately 6140 feet and because of the cooler temperature, eggs are laid about two weeks later than they are near Provo. All ponds exhibit a basic reaction as shown by the pH readings in Table 1. 52 The Great Basin Naturalist MORRIS AND TANNER Vol. XXIX, No. 2 Fig. 3. Habitat of study area III. Arrow indicates location of breeding activities. Fig. 4. Hatitat of study area IV. July 31, 1969 ecology of k. pretiosa in utah 53 Table 1. The pH readings taken from study areas. Location pH Reading Study area I 7.45 Study area II pond A 7.50 Study area II pond B 8.48 Study area III 8.52 Study area IV 8.42 Methods and Procedures Intensive field work has been carried out for the past three years beginning in the early spring months during 1965 to 1967 for the piu-pose of locating suitable habitats and noting the first dates of emergence. Temperature data taken from the ponds were later com- pared with temperature data obtained from United States Depart- ment of Commerce Weather Bureau Climatogical Data Reports for Provo and Geneva. Utah, to determine the physical conditions of the environment which released frogs from their hibernacula. Daily observations were made on the breeding and egg laying habits after their spring appearance. Photographs were taken of eggs and mating frogs, and recordings made of breeding call of males in the field with a model 301 Martel Tape Recorder. All egg clutches were measured in the field and left in their natural surroundings. Clutch dimensions were measured to the near- est centimeter by means of a metric ruler. Volume was determined by water displacement in a 500 ml graduated cylinder. Several eggs were taken from each clutch, preserved in 10 percent formalin, and removed to the laboratory where each egg was examined and mea- sured individually to the nearest 0.1 mm with a 10 power magnifica- tion of a dissecting microscope equipped with an ocular micrometer. I'o facilitate viewing of the inner membrane of the eggs, several techniques were employed. One such method, useful in the field, was to float a few eggs over the surface of the water in a small, white enamel pan. and then to observe the shadow cast by each membrane on the bottom of the pan when placed in direct sunlight. Although this method was successful for fresh eggs, it was not satisfactory for preserved eggs because of irregular shadows resulting from distortions in the outer surface. Another technique which proved very useful was staining. 1 his was accomplished by first embedding individual eggs in dental impressive material, 1 Ty dtocolloid Algenate, according to directions on the label. After approximately four minutes the capsule was cut with a razor blade as close to the center of egg as possible. A drop of either Congo Red or Giesman stain was then placed over the exposed surface for one or two minutes and then removed. The resulting ring or rings within the jelly could then be observed and measured under a dissecting microscope. Tadpoles were collected randomly at regular intervals and pre- served in 10 percent formalin, and all measurements were taken The Great Basin Naturalist 54 MORRIS AND TANNER Vol. XXIX, No. 2 to the nearest 0.1 mm as follows: head-body length, from tip of snout to the midpoint of cloacal opening; tail length, from midpoint of cloacal opening to tip of the tail. Total length was derived from the sum of the body and tail lengths; widths were taken at widest part of the body. Weights were taken on a Mettler electric balance and read to the nearest 0.1 mg and estimated to the nearest 0.01 mg; tadpoles were placed on blotter paper for 15 seconds after removal from the formalin before weighing. Egg numbers were obtained by three different methods: (1) by counting eggs in each clutch after ovulation, (2) by counting the number of eggs in a given volume and then measuring the volume of the whole clutch, and (3) by actual count of eggs dissected out of mature females collected at intervals during late summer of 1966 and early spring of 1967. Some difficulty was encountered during 1965 in locating tadpoles because of the dense growth of vegetation. To facilitate their collec- tion, a small mesh wire screen was placed around the eggs at study area II on March 26, 1966 (Fig. 4 and 5). The screen was approxi- mately 8 meters long and made a semi-circle in the water. The open end of the screen was approximately 3 meters long. The water level at pond A increased progressively during the summer so that it provided no barrier late in the summer. The effect of the screen at pond B is discussed in conjunction with larval development. Analysis of dissolved minerals in water taken from the ponds was obtained through a measurement of conductivity with a salt bridge. Results are expressed in parts per million. Hydrogen-ion concentrations were determined with an electric pH meter in the laboratory. Discussion The first appearance. The western spotted frog emerges from hibernation normally during the middle of March when the air temperature has risen to 13-16° C for several days or after a rain storm which has warmed the water sufficiently (Fig. 5-8). Spotted frogs appear about one week after the chorus frog Pseudacris nigrita triseriata which has been the first anuran to appear in the spring within the time covered by this study. The emergence of the leopard frog R. pipiens normally follows R. pretiosa by 7-10 days so that by the end of March the chorus frog and both ranids are present in the ponds often in large number. The peaks of the spawning seasons for these species, however, normally do not overlap in a given habitat at the same general elevation. During the course of this study, earliest record of appearance for R. pretiosa was March 6. 1967. The seasonal temperature was unusu- ally warm during this time. More important, however, than the air temperature itself is the temperature of the water under which the frogs hibernate. A temperature of 10-11° C seems to be a critical point in their activity. Not only must the water reach this tempera- July 31, 1969 ecology of r. pretiosa in utah 55 1962 DAILY PRECIPITATION (cm) 'L^JL^JWAJiJLJ'LJJJ 30 -2^- -30 DAILY MAX. & MIN. TEMP, {t.) Fig. 5. Climatic data for the spring of 1962. Arrow indicates approximate date of emergence; X indicates approximate date hatching began. 56 MORRIS AND TANNER 1963 The Great Basin Naturalist Vol. XXIX, No. 2 3- 2- 1 DAILY PRECIPITATION (cm.) u 3(fr o 25 DAILY MAX. & MIH. TEMP.Cc) JANUARY FEBRUARY MARCH APRIL Fig. 6. Climatic data for the spring of 1963. Arrow indicates approximate date of emergence; X indicates approximate date hatching began. July 31, 1969 ecology of r. pretiosa in utah 1965 57 3p 2- 1 - DAILY PRECIPITATION (cm.) _>^-A.w^_AJLiJ(L--_ i^aOL. Au)L_L. 35 30' DAILY MAX. & MIN. TEMRTcI JANUARY FEBRUARY MARCH APRIL Fig. 7. Climatic data for the spring of 1965. Arrow indicates approximate date of emergence; X indicates approximate date hatching began. 58 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX, No. 2 1966 DAILY PRECIPITATION (cm.) aJV__A. j\ Av FCBRUARY Fig. 8. Climatic data for the spring of 1966. Arrow indicates approximate date of emergence; X indicates approximate date hatching began. July 31. 1969 ECOLOGY OF R. PRETIOSA IN UTAH 59 ture to release them from hibernation, but when early morning tem- j)eratures fall below 10° C, or during a cold period causing a similar drop, frogs are not found at the surface of the water. Dredging of the bottom of the ponds reveals their presence in a semidormant state. As the temperature of the water again warms to 10° C they can be seen resting in vegetation just under the surface of the water. As the temj>erature warms to 1 1 ° C they will come to the surface. There are undoubtedly other factors involved in stimulating their release from hibernation. The effect of moisture has been mentioned by both Vernberg (1953) and Martof (1953) as being important in releasing amphibians from hibernation. During the spring of 1966 and 1967 it was noticed at two separ- ate locations that frogs were appearing later in those ponds where the water level had dropped so that in the more shallow portions of the jx)nds the bottom was exposed. There may have been several factors involved in their retarded arrival, two of which may have been a lower temperature or a greater fluctuation in temperature because of a smaller quantity of water. This is an area of study open to further investigation. However, one item was noted, namely that these receding ponds showed a greater concentration of soluble salts, approximately 100 ppm higher than the others. This may possibly provide a type of physiological dryness to the frogs causing a delay in their appearance. The males are first to appear and are present three or four days before the larger females emerge. The smaller immature frogs do not appear for two or three weeks after the females or until the breeding season is completed. A summary of measurements taken on 36 frogs collected and re- leased at study area II, pond A, on March 27. 1966, can be found in Table 2. Table 2. Measurements of postbreeding frogs taken March 27, 1966, from study area II, pond A. Sex Number of specimens Snout-vent length in mm Range Mean Female Male Immature 5 25 6 78.6-61.6 64.2-47.2 42.6-31.0 70.0 49.9 37.8 As males emerge they do not exhibit much activity and can be found either calling from the pond with only their heads above water, or buried in vegetation during a cold period. Vocality. The call itself closely resembles the sound made by re- peatedly clicking the tongue against the top of one's mouth. The calls come in a series of clicks ranging in number from six to approxi- mately 50. rhe rate of the notes varies depending upon the tempera- ture. An examination of several calls made at 16° C showed a var- 60 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX. No. 2 iance in rate of from 300 notes per minute to 480 notes per minute by different males. The duration of an individual call is from 4-10 seconds and repeated at a rate of as many as 10 calls per minute. With each note the floor of the mouth is depressed approximately 2 or 3 mm. The call can be given either above or below the surface of the water with the call from below the surface being somewhat louder. The call is weak and is muffled when other anuran species are calling from the same pond. The maximum distance for hearing the call is somewhat less than 25 meters, the average being 7 to 10 meters. The call of one male has been observed to stimulate others to call. This was noted after the frogs had been disturbed and many moved to the bottom of the pond. As one came near the surface and called, other frogs came from under the vegetation and swam to the top as if responding to a signal; soon all were at the surface and calling again. Normally at this time they pay little attention to any movement around the pond, even to the point that many can actually be touched before they attempt to escape. Mating. Mating takes place immediately upon the arrival of the female as evidenced by the following: ( 1 ) at no time was an adult female observed to be present which was not in amplexus until after ovulation, and (2) the aggressiveness with which males attempt amplexus would require only a few minutes before a receptive gravid female would be clasped. The sexual drive is very strong in males of this species, so much so that not only do they attempt amplexus with others of the same sex. but at times two and three males have been observed embracing one female (Fig. 9) ; however, this multiple Fig. 9. Multiple embrace of two males with one female. Note typical posi- tion of calling males at breeding sites. July 31. 1969 ecology of h. prktiosa in utah 61 embrace lasts for only a few iuiiiutes. The drive is so strong that attempted amplexus has been observed with other objects in the water, even to the point that one male, rather than escaping as it was reached for, swam closer and clasped onto my finger. The tenaci- ty to mate is no doubt correlated with competition exerted by the large male to female ratio, and the fact that this species is very gre- garious with all of the breeding activity limited to a small area with- in the pond. Of 30 adult frogs collected on March 27. 1966. there was a 1 to 5 female to male ratio (Table 2). The difference in size between the larger females and smaller males (Table 2) places the vent of the males directly above that of the females during amplexus. Amplexus is axillary with the male embracing from above. Ovulation. The females are apparently ready for ovulation as soon as they emerge and several clutches of eggs have been observed the same day. The eggs are normally laid at a water temperature of approximately 14° C and may be laid during the day or night. In nature, egg-laying has been observed to be interrupted for several days during a cold period, but would proceed as soon as the water again warmed to the approximate temperature. The embrace is maintained during the entire period. Experimentally males have maintained the clasp in the laboratory during a lowering of tempera- ture almost to the point of freezing at which time the clasp was slowly released. Throughout the entire period of amplexus. the male's main physical activity seems to be to maintain the clasp until ovula- tion. All activities, such as protection and movement into deeper water during cold periods, are dependent upon the action of the female. The male remains passive during the entire period. Fertile eggs have not been taken from a clasping pair which have been removed to the laboratory. This artificial condition seems to inhibit the females from laying even though the males have main- tained their embrace for as long as two weeks. The actual process of ovulation has not been observed in nature, although eggs have been found before the first cleavage has taken place. An examination of a clutch of eggs collected March 29, 1966, at study area III. showed that some eggs were attached together by a small gelatinous chord 2 to 3 mm in diameter as reported by Turner (1958), whereas the surfaces of adjacent eggs were attached directly by 3 to 5 mm of their outer membrane. A close examination of a typical egg revealed that it was connected to five other eggs. Two of these adjacent eggs were attached by means of the gelatinous chord, while the other three were attached directly by their outer membranes. As eggs are laid the adhesive character of the mem- branes causes them to become attached to one another and form one large, irregular clump. They also weakly adhere to vegetation below them as they come in contact with it. Oviposition sites. The sites used for egg laying have several characteristics in common: (1) they are normally in the part of the 62 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX, No. 2 pond which has warmest temperature resuhing from solar radiation, and in most instances this is on the west side where the eggs catch the morning sun; (2) the eggs were always laid in an open area in clear water and never in among the cattails or in floating Spirogyra which was oftentimes only a few feet way; (3) eggs are usually in, the shallow portion of the pond 10 to 20 cm under the surface of the water and attached to Chara sp. This attachment is rather weak, however, and within a week the clutch usually breaks loose and floats on the surface where the eggs become more of a flattened mass and are scattered by wind and water movements. As one clutch of eggs is laid, there apparently is a stimulation for other females to lay their eggs in the same area. This behavior was best shown at study area IV where approximately 50 clutches of eggs were laid within an area 75 cm in diameter, even though other apparently ideal locations were available. This large assemblage of eggs was weakly attached, one to another and to the vegetation (Fig. 10). In this large pond area only a few clutches were found away from the large mass of eggs. Eggs. Durin,g the spring of 1965, 10 clutches of eggs were mea- sured and counted in the field (Table 3). The average number of eggs per clutch was 605. The largest clutch contained 725 eggs and the smallest 430 eggs. In 1966 eggs in 21 different clutches were counted and measured (Table 4), and the average number per clutch for this year was 746. The maximum was 1160 and minimum 147 eggs per clutch. Fig. 10. Oviposition site at study area IV. Note the closeness of egg masses (approximately 50 clutches). July 31, 1969 ecology ok r. pretiosa in utah 63 Table 3. Comparison of clutch size and number of eggs collected from study area I on March 30, 1965. Total no. Eggs Clutch size Diameter of eggs per clutch in cm in mm 541 625 695 715 615 635 650 725 514 430 Egg Outer Mem. 9-8-5 2.5 10.0 9-7-5 2.3 10.1 11-8-7 2.4 10.5 10-8-7 2.5 13.0 12-9-9 2.5 10.0 11-9-7 2.4 10.0 13-9-7 2.5 13.0 11-6-6 2.2 10.7 6-5-3 2.1 12.0 5-4-2 2.3 11.0 Table 4. Relationship of clutch volume and number of eggs per clutch. Total no. Clutch eggs per volume Eggs per cc Locality Date clutch in cc of clutch Study area II 24 March 66 940 320 2.62 pond A 660 110 6.00 500 105 5.24 900 215 4.37 950 400 2.38 29 March 66 600 4O0 1.50 840 415 2.02 Stury areall 29 March 66 716 285 2.58 pond B 900 475 1.72 148 130 1.13 1160 550 1.11 30 March 66 980 500 1.96 31 March 66 655 625 325 2.01 Study area III 23 March 66 900 285 3.17 925 230 3.96 380 115 3.30 460 100 4.60 Study area IV 5 April 66 990 250 3.96 716 235 3.05 730 375 1.98 Because of the great variation, in egg numbers and because the numbers were consistently lower than those reported by such workers as Svihla (1935). Livezey and Wright (1947), Wright and Wright (1949). and Stebbins (1951), it was suspected that perhaps these frogs were laying a small number of eggs at one location and then producing others later, as was reported by Bragg (1944) for the common leopard frog in Oklahoma. However, in the dissection of gravid females of R. p. pretiosa from Utah County, this same varia- tion in numbers has been observed before any eggs had been laid (Table 5). Therefore, it is reasonable to assume that Utah popula- tions produce a smaller number of eggs for each complete clutch. The Great Basin Naturalist 64 MORRIS AND TANNER Vol. XXIX. No. 2 Table 5. Comparison of egg numbers and size of females collected from study area II, pond A. Total no. Clutch eggs per volume Eggs per cc Total length Date clutch m cc of clutch of female 27 July 66 902 80 11.3 74 19 August 66 763 50 15.2 73 13 September 16 168 67 7 October 66 860 60 14.4 70 8 October 66 1060 72 14.7 64 15 October 66 393 40 11.2 59 We are unable to explain the reason for variation in the number of eggs per clutch. The size of females does not reliably explain the variation in clutch size. Freshly deposited eggs soon increase in volume by absorption of water, so that within several hours after laying they may range from 110 cc to 550 cc with the average of those measured being 291 cc. Clutches of the same age are variable as to size and number of eggs per cc as is indicated in Table 3. Several days after being deposited, a clutch usually appears as an irregular, oval mass just under the surface of the water. Within about a week egg mass becomes less coherent, and breaks loose to float at the surface in more of a plinth shape. By the time the eggs are ready to hatch they are almost undiscemible from above, because of the accumulation of dirt and debris on the exposed surface and the breaking up and amalgamation of the adjoining ielly masses. There is also a dry, crusty appearance to the mass resulting from destruction of 10 to 20 percent of surface eggs. This high mortality rate among the eggs is a result of several factors. First, the eggs are laid early in the spring so that there are many nights in which they become encrusted in ice which destroys some of them. Also, because of the long period of embryonic development they may later be forced out of the water by the new growth of submerged vegetation, which ex- poses the top eggs to desiccation. Each egg is enclosed in two gelatinous envelopes separated by an indistinct inner membrane. The total diameter of the outer capsule normally varies within a range of from 9.0 mm to 13.0 mm although variations as great as 8.0 mm to 21.0 mm have been measured. The average diameter of those eggs measured (Tables 3, 6-9) was 10.0 mm. The diameter of the indistinct inner membrane has a normal variation of from 3.8 mm to 6.1 mm and a mean of 5.0 mm. This membrane is difficult to see in the fresh eggs without the techniques employed as described previously, but can be seen even in unferti- lized eggs if these methods are used. As development progresses this inner membrane becomes more obvious because of the infestation of algae from the outside which stops at the inner membrane. If eggs fail to develop the ovum deteriorates clouding the inner jelly coat out as far as the inner membrane. July 31, 1969 ecology of r. pretiosa in utah 65 Table 6. Measurements in mm of eggs collected March 29, 1965, at study area I. Egg Diameter Capsule Diameter Inner Outer 2.7 5.0 10.0 2.8 6.0 13.0 2.7 4.9 12.0 2.6 5.0 10.0 2.0 4.7 11.0 2.5 4.9 11.0 2.4 3.8 11.0 2.1 4.5 10.0 3.0* 8.0* 21.0* *Extremely large egg Table 7. Measurements in mm of un- fertilized eggs laid in the laboratory by a female collected March 27, 1967, at study area III. Egg Diameter Capsule Diameter Irmer Outer 2.5 4.7 9.0 2.4 4.7 9.0 2.6 4.9 8.0 2.7 4.8 10.0 3.0 5.0 11.0 2.8 5.0 12.0 2.8 5.0 12.0 Table 8. Measurements in collected March 29, 1966, at mm of eggs study area III. Egg Diameter Inner Capsule Diameter Outer 2.6 6.0 2.5 6.1 2.4 5.2 2.4 5.0 11.0 10.1 10.0 8.0 Table 9. Measurements in collected April 5, 1966, at mm of eggs study area IV. Egg Diameter Inner Capsule Diameter Outer 2.6 5.0 10.6 2.6 5.0 10.5 2.6 3.0 10.0 2.7 5.1 10.3 2.6 5.0 10.3 2.5 4.5 10.2 2.4 4.9 10.1 The Great Basin Naturalist 66 MORRIS AND TANNER Vol. XXIX, No. 2 The ovum is normally 2.5 mm in diameter, but does vary within a range of 2.1 to 2.9 mm. Preservation can cause some distortion in size if not done properly and may account for some of the varia- tion shown in Tables 3, 6-9. The color of an egg is dark brown to black above, and pale yellow or light tan below. The vitelline mem- brane is closely applied to the ovum at time of hatching, which allows an enlargement of the fluid-filled chamber for embryonic develop- ment and movements. As the embryonic development progresses, the embryo becomes progressively lor^ger imtil at the time of hatching it is 8 to 10 mm in length. An attempt to analyze the physical factors involved in the actual hatching process has not been made. Discussions of these factors are given by Noble (1954) and Bragg (1940a, 1940b). A change in temperature was observed to have a noticeable influence on the hatching process. This was demonstrated when eggs placed in a natural spring did not hatch even though embryonic develop- ment seemed to be complete. The temperature of the spring water remained constant, at approximately 1 1 ° C, with only minor fluctua- tions. Samples of these eggs when removed from the cold environ- ment would hatch in approximately one hour while those left in the spring hatched 7-10 days later. Eggs which were brought into the laboratory hatched at room temperature in about seven days, whereas those in nature and subiect to the lower temperatures required from 13 to 23 days to hatch. Under normal pond temperature where the eggs were laid, the majority hatched about two weeks after ovulation. However, length of time required for hatching varies from year to year depending upon the fluctuations of atmospheric temperatures and the amount of cloud cover which reduces solar radiation. Larval Period. The hatching activities cover a period of several days, with most eggs hatching within three weeks after ovulation. The tadpoles remain attached to the gelatinous material by their oral suckers for two or three days following hatching. As they break loose from the jelly they sink to the bottom where only an occasional swimming movement is made. The results of ciliary movement along the body surface keeps a fresh supply of oxygenated water flowing from anterior to posterior past their external gills, as observed under a dissection microscope (30x mag.). The mouth and anal openings do not develop until one or two days following hatching. Actual feeding begins in conjunction with the first swimming activities. Associated with this free feeding stage, an operculum develops over the external gills and water is taken in through the mouth and out the spiracle on the left side of the body. The food eaten is mostly secured by scraping or rasping off the loose outer surface of decom- posed plant material, a function for which the teeth are well adapted. The rows of larval teeth are two upper and three lower as des- cribed by Skousen (1952) except that in a high percentage of the specimens measured, the first lower row was continuous rather than divided medially. For a more complete discussion on the development of larval mouth parts see Johnson (1965). An examination of the July 31, 1969 ecology of r. pretiosa in utah 67 digestive tracts of several larvae show mostly decomposed material and some green algae. Tadpoles in the laboratory have been raised on live Spirogyra which gives a green color to the digestive tract. Burke (1933) was able to raise Rana pretiosa tadpoles through metamorphosis on a 24 hour mixed culture of bacteria. He concluded that the common water bacteria contain all the food factors necessary for their normal growth. The scavenger feeding of tadpoles advanced beyond stage 26 (Table 10) was further observed as they ate the remains of dead pretiosa tadpoles. Stage 1 Stage 2 Stage 3 Stage 4: Stage 5 Stage 6 Stage 7 Stage 8 Stage 9 Stage 10 Stage 11 Stage 12 Stage 13 Stage 14 Stage 15 Stage 16 Stage 17 Stage 18 Stage 19 Stage 20 Stage 21 Stage 22 Stage 23 Stage 24 Stage 25 Stage 26 Stage 27 Stage 28 Stage 29 Stage 30 Stage 31 Stage 32 Stage 33 Stage 34 Stage 35 Stage 36 Stage 37 Stage 38 Stage 39 Stage 40 Stage 41 Stage 42 Stage 43 Stage 44 Stage 45 Stage 46 Table 10. Summary of developmental stages. Egg fertilization Appearance of the Gray Crescent Two cells (first cleavage) Four cells Eight cells 16 cells 32 cells Mid cleavage Late cleavage Beginning of gastioilation Involution at dorsal lip Blastopore complete Neural plate develop Neural folds and groove formed Beginning of ciliary rotation, closing of neural fold Neural tube formed, gill plates discernible Development of tail bud Muscular movement Heart beat Gill circulation Cornea becomes transparent, mouth opens Tail fin circulation Opercular fold formed Operculunr covers right gills Operculum covers left gills Hind limb bud appears Limb bud length equal to or greater than one-half the diameter Limb bud length equal to or greater than diameter Limb bud length equal to or greater than one and one-half the diameter Limb bud length equal to two times the diameter "Foot" becomes paddle shaped Indentation formed for fourth and fifth toes Indentation formed between third and fourth toes Indentation formed between second and third toes Indentation formed between first and second toes Beginning of toe separation All toes separated Appearance of metatarsal tubercles Subarticular tubercles appear as light patches on the inner surface of the foot Subarticular tubercles fully developed Loss of cloacal tail piece, "skin window" appears for forelimb Forelimbs free Angle of mouth midway between nostril and eye Angle of mouth below midpoint of eye Angle of mouth posterior to eye, tail stub remains Metamorphosis complete The Great Basin Naturalist 68 MORRIS AND TANNER Vol. XXIX, No. 2 The actual growth of tadpoles, like that of the unhatched em- bryos is greatly influenced by different temperatures (King, 1903; Moore, 1938; Brattastrom, 1963; and Johnson, 1965). Tadpole act- ivities at the early stages indicate that they employ to some extent a biological control of their temperature by their position within the pond. The young tadpoles prefer to stay close to the bottom and do so in the shallower areas where water temperature during the day is warmer. Aggregations of tadpoles have been noted at various times throughout the summer and as suggested by Carpenter (1953b) and Brattstrom (1962) these close aggregation may contribute, be- cause of their melanistic color, to the warming of their immediate surroundings by absorption of solar radiation which in effect speeds up development leading towards metamorphosis. On overcast and rainy days tadpoles move to deeper water and are usually within the vegetation. By stage 30 (Table 10) they become more active, continually swimming and feeding throughout the pond. This activi- ty continues until metamorphosis at which time a modification of the digestive tract permits them to feed closer to the shore on small arth- ropods, and to rest in the vegetation. Summary of Developmental Stages. To facilitate a description of the developmental process taking place in embryonic (prefeeding stage) and larval (free feeding stage) frogs, staging tables have been used. They are of value in a life history study since the external morphology of each stage of development is described and illustrated. These staging tables have been used for some time by authors in descriptive and taxonomic works. Two systems of numbering the stages were in use until Gosner (1960) presented a table which simplified them. Johnson (1965) described and illustrated the stages as they applied to the spotted frog, Rana pretiosa luteiventris. Table 10 is a smnmarization from Gosner (1960) and Johnson (1965), and is used as a standard of comparison since growth rates are too variable from one locality to another to be used for this pur- pose. Growth Rate. The embryonic growth up through stage 27 (transformation stage from embryo to larvae) is dependent upon food stored in the yolk. All growth beyond this stage is dependent upon the tadpole's own feeding. For this reason no constan,t measurements of growth were taken, until this stage. Those tadpoles which developed at warmer temepratures reached this stage in a shorter period of time and were 2 to 3 mm longer in total length. Study site II. pond B, continually maintained a 4-8 C warmer temperature than pond A until the middle of September when they became equivalent. An average of temperature readings taken at different hours of the day throughout the larval period shows pond A with 13.6 C and pond B with 18.7° C. The more rapid development resulting from the warmer temperature at pond B was, however, counteracted by the crowded conditions imposed upon the tadpoles when a screen, (Fig. 2) was placed around some of the eggs. The effects of the screen were evident by the middle of May when it was obvious that the growth July 31, 1969 kcology of r. pretiosa in i tah 69 of tlie tadpoles at j)oiid A exceeded that of the now stunted tadpoles of pond B (Fig. 11). Another factor which may have had an effect upon the growth of the tad[)oles at j)ond B was the high concentration of dissolved salt in the water. The concentration was fi22j)pni at pond B as comj)ared with a 380 ppni reading at pond A. Pond B also had a j)H of 8.9 compared with a 1 J at pond A. A detailed study of dis- solved minerals was not made; however, their effects prove to be very similar to those causing the stunted condition in plants grown in the same concentration of minerals because of the checked absorp- tion of water. Cameron (1940), in a summary of his work, stated that for Rami pipiens: \ . The nature and amount of dissolved substances and their relative proportions exert separate and unlike influences upon the rate of de- velopment and the stage attainefi at hatching of normal frog embryos. Eggs kept in well water containing fluorine hatch earlier but at a less advanced stage of development than those kept in i)ond or distilled water. 2. Flourine in concentrations as low as 1 ppm is able to exert a constant and measurable retardation on the rate of development and stage at hatching. The tadpoles of pond B showed their greatest rate of growth from April 10 to May 23. At the end of this time their total length varied within a range of from 33 to 47 mm (Fig. 11). This growth rate was a maximum of approximately 2.7 mm per day and a minimum of 1.5 mm per day since stage 26. The development stage at the end of this growth period varied from 33 to 37 (Fig. 12) indicating that the greatest period of growth was from the first appearance of the hind limb bud until the full development of the hind foot. There was no appreciable growth from May 23 to July 27. The ontogenetic development, however, had advanced to a stage where several of the larger tadpoles were transforming into frogs (Fig. 12). This transformation of larger tadpoles seemed to release some of the growth retarding effects on smaller ones (Fig. 16-21). Thus, there followed another period of increased growth so that by the end of August their total length varied from 40 to 57 mm. Bose (1960) stated that when stunted tadpoles were separated from their larger siblings normal growth again took place. The tadpoles of pond A continued their growth until stage 40 when metamorphosis began without any noticeable decrease in the growth rate (Fig. 13); therefore, tadpoles at this pond had mostly transformed into immature frogs by the end of August. Although the development of larvae at Pond A was approximately two weeks later than at i)ond B, they developed at the same rate until the first of June at which time the tadpoles of pond B became stunted (Fig. 12.) The individual size of each tadpole showed signs of variability shortly before the hatching stage and these differences became more exaggerated with their development. Cameron (1940) suggested that 70 The Great Basin Naturalist MORRIS AND TANNER Vol. XXIX, No. 2 + -t- 4+4-1- + 4- 4-H4 -44. • 4- •4- 4- 4- -♦ t + 4+4- 4- 4- ++4- + .+ 1- -•■ 4. - — • • 4-4- 4- 4. 4. - * 4- -f 4V4- * 4- - + 4--f -¥ * : •• • • 4-4. 4- t ■•■ ' • • • 4-4 4- — *^ t.*" , 4- 4- 4 ' 4 ■ 1 1 1 1 1 1 44 4- 1 • + 1 4 4 • • -*• 4- .+••• +4 +•• • + + ■* • • -^ 4 X ♦ * ••. 1 1 1 1 in o ■n O n o in o in o in 6 TOTAL LENGTH (m.m. Fig. 11. Scatter diagram showing total length of specimens collected ran- domly at study area II on days indicated. Dots are pond A and crosses are pond B. July 31, 1969 ecology of r. pretiosa in utah 71 |4-»-f*4-» a . + +*- + .4* + ^•f-**-t + .4- + . '-K -+. ft ■»•* +••♦♦•♦. -«■♦.• 1 1 1 I ■ ■■ i . 1 . ■ I ■ ■ . ■ I . ■ ■ ■ 1 1 ■ ■ .111. 1 I ■ I 1 1 I 1 I 1 1 I 1 STAGES OF DEVELOPMENT Fig. 12. Scatter diagram showing stages of development of specimens col- lected randomly at study area II on days indicated. Dots are pond A and crosses pond B. 72 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX, No. 2 .ou .40 .20 . 6.00 - .80 ^ .60 - .40 ^ . .20 - • 5.00 - .80 - .60 - • . • .40 - ' • .20 - • • 4.00 - . .80 U .60 - • • .40 - • .20 - . . f 3.00 - .80 - •, . ♦ • .60 - + .40 - + . : . + .20 - + 2.00 - • • • + » 4 * + 4. .80 ' 4. I + ^ ; • * .60 ~ + + * .40 " * + • + + + .20 1.00 - t * + + * 4^ + .80 ' + 4. ^ ■f .60 - ^. .J' , * 4 4 4 .40 " * * ^** •». * + .20 1 \ 5 1 1 r j_ * ' 1 , , . < , 1 . r 1 1 , 1 , 1 sePTCMBia Fig. 13. Scatter diagram showing total weight of specimens collected ran- domly at study area II on days indicated. Dots are pond A and crosses pond B. there is a genetic variation of as much as 10 percent in the size of eggs reaching a given stage. This difference in size was more appar- ent at pond A where the total mass of the individuals, as shown by the weights in Fig. 1 1, on August 3, had a range of 1 .69 to 6.12 gm. An examination of Figs. 11-13 shows that absolute body dimen- sions are so variable throughout the larval development that the use of these measurements as key characters in species identification would be most difficult. The use of body ratios as suggested by Lim- baugh and Volpe (1957) is also questionable since there is a variance from one individual to another even in those of the same age (Fig. 14). Data show that the larger tadpoles have a smaller tail to head ratio, and when the head length is greater than 24 mm the tail can have a variance of approximately 23 mm (21 to 44 mm) (Fig. 16). July 31, 1969 ecology of r. pretiosa in utah 73 .80r .60 - .40 - .20 - a.00- .80- .60- .40- .20- 5.00- .80- .60- .40- .20- 4.00- .80-. .60- .40 - .20- loo- .80- .60- .40- .20- 2.00- .80- .60- .40- .20 - 1.00 - .80- .60- .40- .20- ■s^ ^ .^ + + + _i I I I i_ Fig. 14. 5 10 15 20 25 30 35 40 4 5 50 55 60 65 TOTAL LENGTH (mm.) rig. 1^. Scatter diagram showing comparison of length and weights of specimens collected randomly at study area II. Dots indicate specimens up through stage 45 at pond A, crosses indicate specimens up through stage 45 at pond B, open stars indicate specimens past stage 45 at pond A, and closed stars indicate si>ecimens past stage 45 at pond B. Tadpoles at pond A normally began metamorphosis, stage 41. once they reached a maximum total length of 50-55 mm (Fig. 11, 12 and 15). Some tadpoles, however, continue to grow even after others of approximately equal size have begun transformation, so that they reached a maximum size of up to 70 mm two or three weeks later. There is a tendency for these large tadpoles to remain in an arrested state of development between stages 36 and 40 once they have grown past the normal size for transformation. They remained as large tad- ])oles up until the last of August before any started to transform 74 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX, No. 2 and then all were able to complete metamorphosis by September 15, 1966. The tadpoles at pond B were not only retarded in size (as a group), but also retarded in their ontological development (Fig. 12 and 15). The first transformation was on August 3, 1966, two weeks later than the first tadpoles from pond A (Fig. 12). Transformation was a slow process, requiring until October 15, 1966, for the remain- der of the population to complete metamorphosis (Fig. 12). There- fore, the time required for metamorphosis to occur at this locality varied from 122 days to a maximum of 209 days after egg laying. The maximum and minimum total lengths of tadpoles at pond B reaching stage 40, were 57 to 47 mm respectively (Fig. 15), com- pared wdth the same maximum and minimum of 70 and 60 mm at pond A. An examination of Fig. 14 gives another picture of the smallness of transforming frogs from pond B. When comparing their weights with total length, the pond B tadpoles are consistently smaller at the time of metamorphosis, with the smallest weighing 0.52 gm and a total length (snout- vent) of 19.5 mm. This would indicate that in some tadpoles very little growth would have taken place since the middle of May (when the stunted condition developed) be- cause they were approximately the same head-body (snout- vent) length and total weight as the tadpoles on May 23 (Fig. 13). It soon •h+ ~ •• ••• + 4 • .... 4 4-1. 4 -t- • • -t- ■«— ^ -44t. + • ■»++-H- +f4. -M- +■•■ 4 + + ^+4 4 • ■*- + •*•+ +++ -f • t -M- • + ■•- ■H-++ 4 ■»■ • •• «• 4- ++ ■»+«••" +<••»■•- • *■•• • 30 3S 40 45 SO SS 60 6S TOTAL IINGTM (mm.) Fig. 15. Scatter diagram showing comparison of total length and stage of development of specimens collected at study area II. Dots indicate pond A and crosses pond B. July 31, 1969 ecology of r. pretiosa in utah 75 becomes apparent that size is not one of the stimulating factors in metamorphosis (Fig. 14), but rather metamorphosis is dependent on an internal reaction. Once metamorphosis begins (stage 41) the time required to com- plete the transformation (stage 46) is comparatively short. A series of 10 tadpoles at stage 40 were examined to determine the time re- quired for the appearance of the front legs. The front leg is the first to appear and the joint of the elbow can be seen appearing out of the spircular opening for 3 to 4 hours before the full leg becomes appar- ent. Only an occasional three legged frog will be observed in nature because of the brevity of this stage. Of the 10 specimens examined after the left leg appeared, the time varied from 4 to 8 hours before the right leg appeared. Detailed descriptions of the tadpoles are given by Stebbins (1951), Skousen (1952), Turner (1958), and Johnson (1965). and it is for this reason that we have not included detailed descriptions. Hibernation. The ponds at study area II were checked at iner- vals during the fall of 1966 to determine the data of disappearance for hibernation. Both frogs and tadpoles were seen until the first of October, but by the 15th all of the tadpoles had metamorphosed and were basking at the edge of the pond. The adult frogs were seen in the deeper water among the cattails. The next observation was Octo- ber 27 at five o'clock p.m. The water temperature at this time was 9° C at pond A and 14° C at pond B; no frogs were evident. The air temperature had been down to freezing for several nights since the last visit, but it had taken about two weeks for the water to cool to or below the critical 10° C level (Fig. 16). The frogs had been ob- served in about the same location of the pond throughout the sum- 40 ■ 3S - 30 ■ . S5 - *. *+ . : ; » • * • *• ao IS 10 - ■t + + + ... ^**' 5 - ■f 1 1 1 1 1- 1 1 _J . T Al L lENOT H ( mm.) Fig. 16. Scatter diagram showing comparison of tail and head-body lengths up through stage 40 of specimens collected at study area II. Dots are pond A and crosses pond B. The Great Bsisin Naturalist 76 MORRIS AND TANNER Vol. XXIX. No. 2 mer and right up until the time of hibernation. It is assumed, there- fore, that these frogs hibernate in the muck under the same water in which they breed. Conclusions and Summary This study was in progress with some interruptions from 1962 to 1967 for the purpose of investigating the breeding biology and life history of Rana pretiosa pretiosa Baird and Girard in central Utah. Some effects of various environmental factors upon the growth and habits of this species were considered. Collections were made from the time the adults emerged from hibernation in the spring until the tadpoles metamorphosed and frogs hibernated in the fall. Data gathered at the ponds and samples of the life history stages were taken to the laboratory where they were analyzed and studied. The western spotted frogs emerged from hibernation normally during the middle of March as a result of the warming of the en- vironment. This same species does not emerge until May at Yellow- stone National Park, Wyoming (Turner 1958), but is usually present by late February in Washington (Svihla 1935). A few individuals were reported by Dickerson (1906) to be out sunning themselves throughout the winter at Puget Sound. In Utah this species prefers small ponds of standing water grown thick with stonewart and possessing a deep muck bottom from which cattails emerge. Tanner (1931) in speaking of the Utah population states, "it is always found near springs, small streams, and swamps." Turner (1958) recorded them as visitors of "pools of stagnant water ..." for egg deposition. Stebbins (1966). however, reported the habitat as follows: "A highly aquatic species found in the vicinity of cold, permanent water — streams, rivers, marshes, springs, pools, and small lakes. Seems not to occur in warm stagnant ponds grown to cattails." The adult male frogs appear in large numbers at the beginning of the breeding season, which begins immediately following the emergence of the larger females. The emergent male frogs seem to congregate in small areas of the ponds as breeding choruses. The breeding season usually lasts for a short period and all eggs are laid within a week or two depending on prevailing temperatures. The males outnumber the females by a ratio of 5 to 1, thus there is strong competition for a mate. The strong sexual drive in the males may be the result of this strong competition. The voice of the male is characterized by a low clicking sound which can be reproduced by clicking ones tongue against the top of his mouth. The call is very weak and can normally be heard for only 20-30 feet. The distance compares favorably with that reported by Turner (1958), but is considerably less than the quarter of a mile reported by Svihla (1935). Stebbins (1966) stated that the call was unknown in Rana pretiosa. July 31, 1969 ecology of r. pretiosa in utah 11 J he eggs are laid shortly after the arrival of females and vary in number from 147 to 1 160 per clutch, the average being approximately 750 per clutch. The range of eggs per clutch is lower than the 1 100 to 1500 reported by Svihla (1935). It is. however, higher than the 206 to 802 reported by Turner (1958). Turner (1958) rej)orted that his eggs numbers were based upon counts of eggs in clusters 1 to 3 days old; Svihla's (1935) reported that the number is an estimation based upon two egg masses which measured 1500 cc and 1100 cc. His determinations were made as follows: "Since each egg measured more than 1 cc the number of eggs in these masses would approxi- mate 1500 and 1100 respectively." Because these same 1100 and 1500 figures are reported by Livezey and Wright (1947). Wright and Wright (1949), and Stebbins (1951). and on the basis of data gathered for this study, it appears that no actual counts were made by these authors and that their numbers are. at least for the Utah population, too high. The eggs average 2.5 mm in diameter and are surrounded by a distinct outer gelatinous envelope and an indistinct inner one, aver- aging 10.0 and 5.0 mm respectively. Following the key prepared by Livezey and Wright (1947). these populations are R. p. pretiosa. The eggs have required from one week to hatch in the laboratory to 13-23 days in nature, the majority hatching about two weeks after oviposition. This two week incubation period is the same as that re- quired by the frogs in Wyoming as reported by Turner (1958), but longer than the four days given by Carl (1943) for those in British Columbia. Johnson (1965) reported the eggs as taking 72 hours to hatch at 25° C but longer at cooler temperatures. Several factors were noted which affect the frogs' growth and be- havior. These were temperature, crowding, and perhaps dissolved minerals in the water. Temperature has an effect upon all stages of the life history of the frog. The adult activity seems to be affected by temperatures approximately 10-11° C. Temperatures below this point bring on a quiescence in their activities. The eggs are laid at temperatures above 14° C. These temperatures are higher than the 5° C which Midden- dorf (1957) reported as being critical in the frogs' activity. The eggs and tadpoles are subject to a wide range of temperature but growth is more rapid at the warmer temperatures. Johnson (1965) found 6° and 28° C to be the minimum and maximum temperatures limit- ing normal embryonic development for this species. Other studies on temperature tolerance and rates of develojmient are by Moore (1938. 1939. and 1942). A high concentration of soluable salts in the water was suspected of having retarding effects both upon the spring emergence of the adults and the growth of the larvae. Cameron (1940) observed that low concentrations of flourine retarded development. Gosner and Black (1957) studied the effects of acidity on the development and hatching of frogs, while Merwin and Allee (1943) noted the re- tarding effects of carbon dioxide on the cleavage rates of frog eggs. 78 MORRIS AND TANNER The Great Basin Naturalist Vol. XXIX, No. 2 1966 DAILY MAX. & MIN. TEMP.l'C.^ SEPTEMBER NOVEMBER Fig. 17. Air temperature for the fall of 1966. Stars indicate approximate date of hibernation. July 31, 1969 ecology of r. pretiosa in utah 79 Crowding of tadpoles was observed to have a retarding effect upon size and development. This same phenomonon has been ob- served and studied by Lyrm and Edelman (1936), Rose (1960). Adolph (1929), Rugh (1934). and Richards (1958) in other species of Anura. Metamorphosis was observed to begin on July 27. 1966; this was approximately 122 days following ovulation. Some tadpoles required up to 209 days to transform. It may therefore be concluded that at higher elevations or more northern latitudes having a shorter summer that tadpoles may require more than one summer to complete their growth and to transform as reported by Logier (1932) in British Col- umbia and Turner (1958) in Wyoming. An examination of the larval mouth parts reveals a tooth row formula of two rows and three lower rows which according to Svihla (1935) would place them as R. p. luteiventris. Hibernation began during the middle of October approximately two weeks after the first freezing temperatures, and presumably under the same water where their summer atcivities were concen- trated. The adults are variable in key characteristics and normally are classified as R. p. pretiosa. The ventral coloration is variable between orange and red. The following color description given by Stebbins (1966) does not fit the Utah population: "Populations in Nevada. Utah, Idaho south of Salmon River, and SE Oregon usually have yellowish ventral color; elsewhere red or salmon predominates." The Utah pretiosa do not completely fit present keys to the sub- species and have been identified in various studies as either pretiosa or luteiventris. The taxonomic characters examined in this study show an intergradation of sub-specific types. Based upon the eggs and adult coloration we consider the Utah population to be Rana p. pretiosa. The susceptibility of the larvae to different water conditions may be the factor which limits the distribution of the subspecies rather than the differences in the adults which seem to be ecologically similar. Wright and Wright (1949) in giving the distribution of the pretiosa subspecies state that luteiventris occupies the tertiary volcanic areas, whereas pretiosa prefer the continental deposit areas. The key to the taxonomy and distribution of this species may very well be the dif- ferences in ecological tolerance of the immature frog rather than the adults. Literature Cited Adolph, Edward F. 1931. The size of the body and the size of the environ ment in the growth of the tadpoles. Biological Bulletin, 61:350-375. Baird, S. F., and C. Girard. 1853. Communication describing Rana preliosa and Bufo columbiensis . Proc. Acad. Nat. Sci. Phila.. 6:378-379. Bragg, A. N. 1940a. Observations on the ecology and natural history of Anura. II. Amer. Midi. Nat., 24:306-321. . 1940b. Observations on the ecology and natural historj' of Anura. V. The process of hatching in several species. Proc. Oklahoma Acad. Sci.. 20:71-74. . 1944. Egg laying in leopard frogs. Proc. Oklahoma Acad. Sci.. 24. The Great Basin Naturalist 80 MORRIS AND TANNER Vol. XXIX. No. 2 Brattstrom, B. H. 1963. A preliminary review of the thermal requirements of amphibians. Ecology, 44:238-255. Burke, V. 1933. Bacteria as food for vertebrates. Science, 78:194-195. Cameron, John A. 1940. Effects of fluorine on hatching and hatching stage in Rana pipiens. Ecology, 21:288-292. Carpenter, C. C. 1953a. An ecological survey of the herpetofauna of the Grand Teton-Jackson Hole area of Wyoming. Copeia, 1953(3) : 1 70-174. . 1953b. Aggregation behavior of tadpoles of Rana p. pretiosa. Herpe- tologica, 9:77-78. . 1954. A study of amphibian movement in the Jackson Hole vsild life park. Copeia, 1954:197-200. Dickerson, Mary C. 1906. The frog book. Doubleday Co., New York, xvii- 253. Dumas, Philip C. 1966. Studies of the Rana species complex of the Pacific northwest. Copeia, 1966:60-74. Dunlap, D. G. 1955. Inter- and intraspecific variation in Oregon frogs of the genus Rana. Amer. Midi. Nat., 54:314-331. . 1959. Notes on the amphibians and reptiles of Deschutes County, Oregon. Herpetologica, 15:173-177. GosNER, Kenneth L., and Irving H. Black. 1959. The effects of acidity on the development and hatching of New Jersey frogs. Ecology, 38:256-262. GosNER, Kenneth L. 1960. A simplified table for staging anuran embryos and larva with notes on identification. Herpetologica. 16:183-190. Johnson, Oliver W. 1965. Early development, embryonic temperature toler- ance and rate of development in Rana pretiosa luteiventris Thompson. Un- published Ph.D. dissertation, Department of Zoology, Oregon State Univer- sity, Corvallis, Oregon. King, H. D. 1903. The effects of heat on the development of the toad's egg. Biol. Bull., 5:218-232. Limbaugh, B. A., AND E. P. VoLPE. 1957. Early development of the Gulf Coast toad, Bufo valliceps Wiegmann. Amer. Mus. Novitates, 1842:1-32. LivEZEY, R. L., AND A. H. Wright. 1947. A synoptic key to the salientian eggs of the United States. Amer. Midi. Nat., 37:179-222. Martof, Bernard. 1953. Home range and movement of the green from Rana clamitans. Ecology, 34:529-543. Merwin, Ruth M., and W. C. Allee. 1943. The effect of low concentration of carbon dioxide on the cleavage rates of frogs eggs. Ecology, 24:61-69. Middendorf, L. J. 1957. Observations on the early spring activities of the western spotted frog (Rana pretiosa pretiosa) in Gallatin County, Montana. Proc. Montana Acad. Sci., 17:55-56. MooRE, John A. 1938. Temperature tolerance and rates of development of the eggs of amphibians. Anat. Rec, 72(Supp. 1):96. . 1939. Temperature tolerance and rates of development in the eggs of amphibia. Ecology, 20:459-476. 1940. Adaptative differences in the egg membranes of frogs. Amer. Nat., 74:89-93. Noble, G. K. 1954. The biology of the amphibia. Dover Publications, New York. 577 front., illus., diagrs. Richards, Christina M. 1958. The inhibition of growth in crowded Rana pipiens tadpoles. Physiological Zoology. 31:138-151. Rose, S. M. 1960. A feedback mechanism of growth control in tadpoles. Ecol- ogy, 41:188-199. RuGH, Roberts. 1934. The space factor in the growth rate of tadpoles. Ecology, 15:407-411. . 1948. Experimental embryology. A manual of techniques and pro- cedures. Burgess Publishing Co., Minneapolis. 480. Schmidt, Karl P. 1953. A checklist of North American amphibians and reptiles. 6th Ed. American Society of Ichthyologists and Herpetologists, Chicago. Skousen, Don B. 1952. A taxonomic survey of the eggs and larvae of some species of Utah amphibia. Unpublished master's thesis. Department of Zo- ology, Brigham Young University, Provo. Utah. July 31. 1969 ecology of r. pretiosa in utah 81 Slevin, J. R. 1928. The iimphibia of western North America. Occ. Papers Calif. Acad. Sci., \&.\i6. Stebbins, R. C. 1951. Ampliibians of western North America. University of California Press, Berkeley and Los Angeles. Calif. . 1954. Amphibians and reptiles of western North America. McGraw and Hill Book Co.. Inc.. New York. 1966. A field guide to western reptiles and amphibians. Houghton Mifflin Co., Boston. Storer. T. I. 1925. A snyopsis of the amphibia of California. Univ. Calif. Publ. Zool., 27:1-342. Stejneger, L.. and T. Barbour. 1943. A checklist of North American am- phibians and reptiles. Bull. Mus. Comp. Zool., 93(l):xix, 260. SviHLA, Arthur. 1935. Notes on the western spotted frog, Rana p. pretiosa. Copeia, 1935 (3): 119-122. Tanner, Vasco M. 1927. An ecological study of Utah amphibia. Utah Acad. Sci. Vol. V. . 1931. A synoptical study of Utah amphibia. Utah Acad. Sci.. VIII: 159-198. Tanner, Wilmer W. 1940. Herpetological specimens added to the Brigham Young University collection. Great Basin Naturalist. Vo. 1:138-146. Thompson, H. B. 1913. Description of a new subspecies of Rana pretiosa from Nevada. Proc. Biol. Soc. Wash., 26:53-56. Thornton, C. S. 1956. Epidermal modifications in regenerating and in non- regenerating limbs of anuran larvae. J. Exp. Zoo., 131:373-393, pi. 1. 2. Turner. Frederick B. 1957. The ecology and morphology of Rana pretiosa pretiosa in Yellowstone Park, Wyoming. Ph.D. dissertation. University of California. Berkeley. . 1958. Life-history of the westeiTi spotted frog in Yellowstone National Park. Herpetologica, 14:96-100. Vernberg, John F. 1953. Hibernation studies of two species of salamanders, Plethodon cinerius cinerius and Eurycea bislineata bislineata. Ecology, 34:55-61. Wright, A. H., and A. A. Wright. 1949. Handbook of frogs and toads of the United States and Canada. Comstock Publ. Co.. Ithaca, New York. Yarrow. H. C. 1875. Report upon the collection of batrachians and reptiles made in ix)rtions of Nevada. Utah. California, Colorado, New Mexico, and Arizona, during the years 1871. 1872. 1873, 1874. Wheeler Survey. Vol. V: 509-633. FOSSIL CHELONIANS, CHRYSEMYS AND CLEMMYS, FROM THE UPPER PLIOCENE OF IDAHO G. R. Zugi The extant reptilian fauna of the Columbian Plateau and the northern half of the Basin and Range Province lacks turtles. Their absence appears to be of relatively recent occurrence, for turtles per- sist in the surrounding areas and have been found in Plio-Pleistocene deposits, Glenn Ferry Formation, of this region. The latest faunal list for the Glenn Ferry Formation (Taylor. 1966. p. 75) includes Kinosternon sp. and Pseudemy idahoensis. Through the effort of Dr. C. W. Hibbard and his field parties, a large collection of chelo- nian shell fragments has been amassed from the vicinity of Hager- man, Twin Falls County, Idaho. Unless indicated otherwise, the specimens reported herein are from the Hagerman area. Family Kinosternidae Kinosternon Spix Remarks. There are no elements that can be assigned to this taxon. Unfortunately, it seems that Taylor (1966) misread Hibbard's (1959), p. 11) statement. Hibbard indicated only that the shell fragments may represent "Kinosternon, Chrysemys, or Pseudemy sJ' This error was compounded by the limited distribution of a faunal compilation and as such has appeared elsewhere (Holman, 1968). Family Testudinidae Chrysemys idahoensis (Gilmore) Material. Peripherals, UMMP V45276A, V52778; Hyoplas- tron, UMMP V53417; Xiphiplastra, UMMP V53417, V54129. Remarks. Of the two turtles represented in this collection, very few elements can be assigned to C. idahoensis. All Chrysemys ele- ments were compared with Gilmore's type series and match the morphology therein. A humeropectoral sulcus extends across the entire width of the hyoplastron and distally forms an anterior loop (Gilmore, 1933, PI. 2). Both xiphiplastra possess a strong step later- ally between the femoral and anal scutes and a shallow dorsal groove medial of the scutes. These features are characteristic of C. idaho- ensis. An anterior half of a plastron (UMMP V42609) has been recov- ered from the Late Hemphilian Wolf Canyon area of Meade County. Kansas. The humeropectoral sulcus of this plastron forms an an- terior loop laterally on each side, indicating that this fossil is also C. idahoensis. Thus temporally, C. idahoensis extends from approxi- ^United States National Museum, Washington, DC. 82 July 31, 1969 fossil chelorians in idaho 83 mately 3.5 million BP to about 5 million BP and spatially from south-central Idaho to southwestern Kansas. In the original description, Gilmore (1933) suggested that the affinities of this species were with the rubriventris group and not with Trnchemys, i.e.. the scripta group. The reverse, however, seems to be true. In the rubriventris group, the skull characteristically possesses a beak bordered by cusps, a high, serrated, median ridge with a pair of anteromedial cusps on the dorsal alveolar surface, a shallow posteromedial indentation of the dorsal alveolar surface, and a small pro-otic tuberosity. C. idahoensis and the scripta group have no cusp on the beak, a low. smooth, median ridge with no cusps, a deep posteromedial indentation of the dorsal alveolar surface, and a well developed pro-otic tuberosity. Unlike the skulls of the rubriven- tris or the scripta group, the anterior edge of the inferior process of the parietal is buttress-like in C. idahoensis, similar to the condition seen in Malaclemys geographica. This buttress-like process and the broad alveolar surfaces suggest that this species feed on mollusks. Clemmys owyheensis Brattstrom and Sturri Material. Nuchals, UMMP V34444, V49940, V50201, V53128. V53527,V53556, V53731. V53773; Peripherals, UMMP V45276 (2). V49956, V50349 (14), V52778C-E. V53128 (7), V53264 (6). V53445 (7), V53555, V54595 (5).V55477 (2), V55537; Pvgals. UMMP V34444 (4). V49558 (2). V50349 (3), V50553 (2). V50938. V51132. V51277, V51737. V53128 (2). V53264. V53731 (2). V54706, V56076 (3), V56261. V56267; Epiplastra. UMMP V34444. V50349 (3), V53264 (2), V53445, V53553 (2). V53755; Endoplas- tra, UMMP V34444, V50091. V50349. V53128, V53264 (3). V53445 (2). V53731, V53772 (2), V56327; Hyoplastra, UMMP V53128. V53528 (2); Hypoplastra, UMMP V52778, V53264, V53421. V53555; Xiphiplastra, UMMP V53264 (2), V53445 (3), V53553. V53731. Remarks. Brattstrom and Sturn (1959) described Clemmys owyheensis on an endoplastron from a Hemphillian (Middle Plio- cene) locality in Oregon. C. owyheensis is characterized by each gulahumeral sulcus of the endoplastron forming a 33-degree angle or less with the midline, a prominent anterior knob on the endojjlas- tron. and a humeropectoral sulcus crossing the endoplastron. 1 he last character occurs in both Terrapene and Clemmys. The endo- plastron of Terrapene is diamond-shaped and in adult specimens inseparably fused with the epiplastra and hyoplastra. The range of variation of the gulahumeral angle is 24 to 37 degrees for the endo- plastra from the Hagerman and 31 to 47 degrees for nuchals from seven extant C. marmorata. Some recent C. marmorata possess prominent anterior knobs on the end()[)lastra. Thus on the basis of endoplastral characters, the fossil Clemmys from the Pliocene cannot be separated from the extant C. marmorata. However, the variation in the morphology of the other shell elements from Hagerman. Idaho, suggests that the fossil remains represent a distinct population. Since The Great Basin Naturalist 84 G. R. zuG Vol. XXIX. No. 2 the Hagerman endoplastra match the diagnosis of Brattstrom and Sturn, Clemmys owyheensis is recognized, at least until more mater- ial is available, as a distinct species. The conspecificity of the Hager- man fossil Clemmys and C. oivyheensis is strengthened by their oc- currence in the same drainage system, the Idaho Lake system. Tem- porally, these two Clemmys may be separated by as much as 5.5 million years. The nuchals of C. owyheensis differ from those of Malaclemys and the Chrysemys floridana group by an extensive nuchal scute underlay and from all Chrysemys by a proportionately narrower nuchal scute. The Clemmys nuchal can be distinguished from that of Emydoidea, because in the latter the anterolateral border of the first vertebral scute is rarely impressed on the bone. If the sulcus of vertebral scute is present, it lies completely posterior to the greatest width of the bone. In Terrapene, the anterolateral tips of the first vertebral scute do not extend beyond the margin of the nuchal bone. The fossil nuchals fall into the range of variation seen in Clemmys, but cannot be assigned to any particular extant species. Dorsally the fossil nuchals match the appearance of those of C. guttata and marmorata with the anterolateral corners of the first vertebral scute extending off the nuchal onto the first peripheral. In C. insculpta, these corners do not approach the edge of the nuchal closely, whereas the corners in C. muhlenbergi end at the edge as in Terrapene. Ven- trally the nuchals of C. owyheensis possess a long nuchal scute un- derlay as in C. insculpta and guttata. The pygals of C. owyheensis are bifurcate posteriorly and have posteriorly converging lateral sides. Only C. m. marmorata possesses this condition; all other Clemmys have only a shallow nick. In Chrysemys, pygals with deep notches have parallel or posteriorly diverging sides. The epiplastra from Hagerman have the deep gular overlay and thick gular lip characteristic of Clemmys. The anterior edge of the gular lip is smooth and bordered laterally by a distinct horn on each side. Likewise, the fossil hyoplastra are from Clemmys, for they have an anterior humeropectoral sulcus. On the hypoplastra of C. owy- heensis, the abdominomarginal sulcus coincides with the hypoplas- troperipheral suture, and a deep groove extends posteriorly from the inguinal buttress along the abdominal and femoral scutes onto the xiphiplastron. The condition of the hypoplastron is commonly ob- served in Clemmys. Each xiphiplastron also possesses a deep dorsal groove, and in addition the transition laterally between anal and femoral scutes is smooth, i.e., no step is formed. Discussion and Summary The Hagerman chelonian fauna consists of two species, Chryse- mys idahoensis and Clemmys owyheensis. No turtles occur in this region today, although Stebbins (1954,192) lists an unconfirmed report of a C. marmorata from Eagles Nest, Idaho, which is upstream of the Hagerman locality. If this record is excluded, the closest July 31, 1969 fossil chelorians in idaho 85 Clemmys population is C. rnarniorata in the True kee iind Carson rivers of Nevada. It has been suggested that the Nevada poi)ulation is introduced; however, two factors hint that it may be a natural population. Although C owyheensis shares some characteristics with the eastern species of Clemmys^ it appears to be closely related to C. rnarniorata. Furthermore, the absence of inguinal scutes on the fossil hypoplastra indicates that the 1 lagerman Clemmys are related to the southern race of C. marmorala. Other aquatic animals, mol- lusks (Taylor, 1966) and fish (Miller, 1965), show this relationship between faunas of southern Idaho and central California. This has led to the postulation of a different drainage pattern for the Snake River during the Pliocene and most of the Pleistocene. The course of the river was from southeastern Oregon across northwestern Ne- vada to central California. Thus the Nevada population of C. mar- morala may be a relict as its present distribution coincides with this old drainage pattern. The shell elements of the Hagerman turtles were obtained from several localities representing a temporal span of about 100.000 years (Fig. 1). Clemmys occur throughout this entire temporal span. In contrast, unquestionable remains of Chrysemys are clustered around the Horse Quarry (Fig. 1). This is a strange occurrence, for the buttress-hke inferior parietal process and broad alveolar surfaces of C. idahoensis indicate that this taxon was molluscivorous. Taylor (1966) reported the near absence of mollusks from this stratigraphic position. Accordingly, if C. idahoensis were entirely molluscivorous as has been suggested for the minnow, Mylocyprinus (Uyeno, 1961), it should also be absent from the Lake Idaho fauna of that time and would be expected to occur earlier in assocation with the abundant mollusk fauna. At the present, C idahoensis has been found in Kansas and Idaho. This distribution is not matched by either of its suggested relatives, rubriventris (Gilmore, 1933) or scripta. The geographic proximity of C. scripta attests to the likelihood of C. idahoensis being a derivative of the scripta lineage rather than the Atlantic coastal plain rubri- ventris. The cranial characteristics of C. idahoensis also seem to be more similar to scripta than rubriventris. Acknowledgments The collection of fossil turtles from Hagerman, Idaho, was made by Dr. Hibbard and his students, who were supported by a grant from the National Science Foundation, GB-1528. I wish to thank Dr. C. W. Hibbard. University of Michigan Museum of Paleont- ology (UMMP). for the opportunity to examine the Hagerman material. Dr. N. Hotton, United States National Museum (USNM). permitted me to examine the types of C. idahoensis. Skeletons of the extant species of Clemmys were examined through the courtesy of Dr. C. F. Walker. University of Michigan Museum of Zoology. Drs. C. W. ilibbard and J. A. Peters have improved the niaiuiscript The Great Basin Naturalist 86 G. R. zuG Vol. XXIX, No. 2 ELEVATION CHRYSEMYS CLEMMYS STRATIGRAPHIC (ft.) MARKER 3400 50 3300 X* X Horse Quarry X 50 X 3200 iBasal 3.48 million years X ? X 3100 X X 50 X X 3000 X Peters Gulch Ash 50 2900 Figure 1. The stratigraphic distribution of Chrysemys idahoensis and Clem- mys owyheensis in the vicinity of Hagerman, Idaho. The elevation is the height of fossiliferous strata above sea level. X, specimen(s) in the University of Michi- gan Museum of Paleontology; star, the type specimens of C. idahoensis (USNM 12059-60). July 31, 1969 fossil chelorians in idaho 87 by their editorial comments. Dr. P. Bjork greatly aided the pre- paration of the figure. Literature Cited Brattstrom, B. H. and a. Sturn. 1959. A new species of fossil turtle from the Pliocene of Oregon, with notes on other fossil Clemmys from western North America. Bull. So. Calif. Acad. Sci., 58: 65-71. GiLMORE, C. W. 1933. A new species of extinct turtle from the Upper Plio- cene of Idaho. Proc. U.S. Natl. Mus., 82 (9): 1-7. HiBBARD, C. W. 1959. Late Cenozoic microtine rodents from Wyoming and Idaho. Papers Mich. Acad. Sci., Arts, Lett., 44: 3-40. HoLMAN, J. A. 1968. LIpper Pliocene snakes from Idaho. Copeia, 1968: 152- 158. Miller, R. R. 1965. Quaternary freshwater fishes of North America. In: The Quaternary of the United States. H. E. Wright, Jr. and D. G. Frey, eds., pp. 596-581. Princeton Univ. Press, Princeton, N. J. Stebbins, R. C. 1954. Amphibian and Reptiles of Western North America. i-xxii, 536 pp. McGraw-Hill Book Co., Inc., N. Y. Taylor, D. W. 1966. Summary of North American Blancan nonmarine mol- lusks. Malacologia, 4: 1-172. Uyeno, T. 1961. Late Cenozoic cyprinid fishes from Idaho with notes on other fossil minnows in North America. Papers Mich. Acad. Sci., Arts. Lett., 46: 329-344. NOTES ON THE DISTRIBUTION AND BIONOMICS OF SOME IDAHO CERAMBYCIDAE (COLEOPTERA)i William F. Barr and Richard L. Penrose- Distributional and bionomical information concerning some species of Idaho Cerambycidae, especially those associated with range- land shrubs, has been accumulated over the past several years pri- marily during the course of field studies. Although fragmentary in scope, the more pertinent of this information is presented at this time for use by other workers. Representatives of each species treated in this paper are deposited in the University of Idaho insect collections. Thanks is given to J. A. Chemsak and E. G. Linsley, University of California, and J. N. Knull, Ohio State University, for their assis- ance in the determination of some specimens. Ammanus vittigera LeConte Linsley (1962) recorded the known northern limits of the dis- tributional range of this southwestern species as southern Utah. Two specimens have been taken in southwestern Idaho. One was associated with a stand of Atriplex canescens (Pursh) Nutt. four miles southeast of Grandview, Owyhee County. June 20, 1959 (W. F. Barr), and the other was collected from the foliage of A. confertifolia (Torr. & Frem.) Wats, eight miles northwest of Walters Ferry, Canyon County, June 15, 1961 (J. E. Henry). Asemum caseyi Linsley This species known previously from the Pacific Coast region is recorded from Idaho for the first time on the basis of specimens col- lected at Hot Springs, nine miles north of Mountain Home. Elmore County, June 16, 1957 (W. F. Barr) and Pollock, Idaho County, June 7, 1956 (R. W. Portman). Asemum nitidum LeConte This common Pacific Coast species has not been recorded pre- viously from Idaho. Collection records from the state are: Craters of the Moon National Mommient, Butte County, July 15, 1964 (D.S. Horning. Jr.), on Pinus flexilis James, Moscow, Latah County, August 28, 1954 (W. F. Barr); and Troy, Latah County, August 30, 1954 (R. H. Abbott). ^Published with the approval of tlie Director of the Agricultural Experiment Station as research paper no. 7+6. ^University of Idaho, Moscow, Idaho. July il. 1969 NOTES OI- IDAHO CKHAMHVCIDAK 89 Atiniia dor soli s LeConte A specimen from Wallace. July 9, 1925 (O. Houllenianii) and a specimen labeled "west central Idaho" collected by W. E. Ferguson in June 1963 represent new distributional records for the state. Crossidius ater LeConte Although this species has been reported from Idaho (Linsley and Chemsak. 1961). its known distributional range within the state now can be expanded. New collection sites are: six miles south of Hailey, Blaine County, August 7, 1966 (M. A. Brusven) ; three miles north and three miles northwest of Malta. Cassia Countv. September 12. 1965 (E. J. Allen, W. F. Barr, R. L. Penrose); Craters of the Moon National Monument, Butte County. September 6, 1964 (D. S. Horning, Jr.); 1.5 miles west of Dayton. Franklin County, September 13. 1965 (W. F. Barr); 1.5 miles northeast of Baker. Lemhi County, September 2. 1965 (R. L. Westcott); Haynes Creek, 4.5 miles north of Tendoy, Lemhi County. August 28. 1962 (W. F. Barr); 19 miles north of Shoshone. Lincoln County. Septem- ber 2. 1965 (R. L. Westcott); and 10 miles southwest of Midvale. Washington County. September 12, 1948 (W. F. Barr). Adults have been taken on flowers of Chrysothamnus nauseosus (Pall.) Britt., C. viscidiflorus typicus (Hall & Clem.) Cron., C v. latifolius (D. C. Eat.) Rydb., C. v. lanceolatus Nutt. and Guderrizia sarothrae (Pursh) Britt. and Rusby in the state. In the Malta area larvae and a teneral adult have been found in the roots of Artemisia tridentata Nutt. Crossidius discoideus blandi Casey Idaho collection records of adults, pupae, and larvae are available for this subspecies indicating that it ranges into the more southeast- erly portions of the state. Collection sites are: two miles north of Swan Lake. Bannock County, July 25. 1967 (R. L. Penrose) (larv^ae and pupae); one mile east of Basin, Cassia County, June 15, 1967 (W. F. Barr, S. M. Hogue, R. L. Penrose) (larvae); three miles northwest of Malta, Cassia County. September 11 and 12. 1965 (E. J. Allen, W. F. Barr. R. L. Penrose) (adults); 2.5 miles north of Dayton, Franklin County. September 13, 1965 (W. F. Barr. R. L. Penrose) (adults); Register Rocks, Power County. January 28. 1967 (R. L.Penrose) (Larvae); 9.1 miles south of Rockland, Power Coun- ty. July 25. 1967 (R. L. Penrose) (larvae and jiupae). .Adults have been found mainly on the flowers of Gutierrezia sarothrae (Pursh) Britt. and Rusbv and occasionally on the flowers of Chrysothamnus viscidiflorus (Hook.) Nutt. Larvae and pupae have been found only in the roots of G. sarothrae. Examination of this plant where it oc- curs in southwestern and central Idaho has thus far failed to disclose the presence of C. d. blandi. The Great BelsIh Naturalist 90 BARR AND PENROSE Vol. XXIX. No. 2 Crossidius pulchellus LeConte The occurrence of this species in Idaho is based on a collection record from Riverdale, Franklin County (Linsley and Chemsak, 1961). Additional collections have been made from three miles west of Dayton, Franklin County, September 13, 1965 (R. L. Penrose); 2.5 miles north of Dayton, Franklin County, September 13, 1965 (W. F. Barr); and Bannock Pass, Lemhi County, August 30, 1962 (W. F. Barr). Adults were taken on the flowers of Chrysothamnus viscidiflorus (Hook.) Nutt, C. nauseosus (Pall.) Britt., and Gutier- rezia sarothrae (Pursh) Britt. and Rusby. Elatotrypes hoferi Fisher Two small series of specimens were reared from dead wood of Pinus flexilis James at the Craters of the Moon National Monument, Butte County, Idaho, by D. S. Horning, Jr., during the summers of 1964 and 1965. These collections establish the occurrence of this species in the state for the first time. Evodinus vancouveri Casey This species, not previously recorded from the state, has been collected only at one northern Idaho location. Specimens were taken at Laird Park, Latah County, May 14, 1962 (W. F. Barr and S. D. Smith) and May 20, 1967 (R. L. Westcott). In both instances adults were found on the flowers of Trillium ovatum Pursh growing in a dense or partially open coniferous forest comprised mostly of Abies grandis Lindl., Pseudotseuga menzesii (Murb.) Franco, and Pinus monticola Dougl. Mecas bicallosa Martin This species is widely distributed in southern Idaho. It has been taken in several different habitats present in foothill areas, in moun- tain valleys, on a mountain pass, and on the Snake River Plains at elevations that range from approximately 3100 feet to 8752 feet. Collection records include: Galena Summit, Blaine County, July 22, 1961 (W. F. Barr, R. B. Hawkes), July 30, 1967 (S. M. Hogue); 5.5 miles southwest of Almo, Cassia County, June 11, 1962 (W. F. Barr); Bear Creek Camp, Custer County, July 21, 1964 (R. L. Westcott); Bonanza, Custer County, July 22, 1965 (W. F. Barr); Weston Can- yon, Franklin County, July 11, 1964 (O. O. Fillmore); six miles southwest of Sweet, Gem County, June 19, 1959 (J. E. Henry); ten miles northeast of Richfield, Lincoln County, June 25, 1959 (W. F. Barr); three miles south of Driggs, Teton County, July 11, 1965 (O. O. Fillmore) ; and nine miles southwest of Rogerson, Twin Falls County, June 18, 1961 (W. F. Barr). These collections have been associated with Artemisia tridentata Nutt., A. t. var vesseyena (Rydb.), A. tripartita Rydb. and A. arbuscula Nutt. July 31, 1969 notes of idaho cerambycidae 91 Megacheuma brevipennis (LeConte) This attractive species is known to have a rather broad but dis- continuous distributional range in the western United States. How- ever, it appears to occur most abundantly in the more northern por- tions of the Great Basin and adjoining areas. The host plants of this species in Idaho have been established as Sarcobatus vermiculatus (Hook.) Torr.. Atriplex nuttalUi S. Wats., and A. confertifolia (Torr.) Wats. PTowever, this cerambycid has not been found throughout the distributional ranges of these host plants in the state. Collection records are as follows: three miles east of Howe, Butte County, June 22, 1966 (W. F. Barr) (larvae in A. nut- talUi), August 7. 1955 (W. F. Barr) (adult in pupal cell in A. nut- talUi); ten miles north of Howe, Butte County, April 11. 1958 (W. F. Barr) (larvae in A. nuttalUi), June 22, 1967 (W. F. Barr) (larvae in A. confertifolia). August 20, 1966 (R. L. Penrose) larvae in A. nuttalUi). August 31, 1960 (J. E. Henry) (adults); 18 miles north- east of Howe. Butte County, June 14. 1955 (W. F. Barr) (larvae in A. nuttalUi), July 14, 1956 (W. F. Barr) (pupae in A. nuttalli) ; five miles north of Malta, Cassia County, July 23, 1957 (R. A. Mac- kie) (adults); six miles southeast of Malta, Cassia County, May 31. 1958 (W. F. Barr) (larvae and pupae in S. vermiculatus) . September 6 and 15, 1955 (W. F. Barr and R. A. Mackie) (adults); seven miles southeast of Malta, Cassia County, April 30, 1954 (W. F. Barr) (lar- vae in A. nuttalUi) ; four miles east of Idahome, Cassia County. June 1, 1958 (W. F. Barr) (larvae and pupae in S. vermiculatus) , August 9, 1955 (W. F. Barr) (larvae and adults in S. vermiculatus); five miles northwest of Oakley, Cassia County, June 2, 1958 (W. F. Barr) (larvae in A. confertifolia), August 16, 1957 (W. F. Barr) (larvae and adults in A. nuttalUi), October 15. 1956 (W. F. Barr) (larvae in A. confertifolia) ; six miles south of Challis. Custer County, Sep- tember 17, 1965 (W. F. Barr and R. L. Penrose) (larvae in A. con- fertifolia); 12 miles west of Mountain Home, Elmore County. April 15 and August 11, 1953 (W. F. Barr) (larvae in A. nuttalUi). June 16 and November 16, 1955 (W. F. Barr) (larvae in A. nuttalUi); 12 miles northwest of Terreton, Jefferson County. July 14, 1956 (W. F. Barr) (larvae and pupae in A. nuttalUi). August 30, 1962 (W. F. Barr) (adults) ; 20 miles northwest of Terreton. Jefferson County, March 27, 1967 (W. F. Barr) (larvae in A. confertifolia); one mile north of Murphy. Owyhee County, March 25, 1955 (W. F. Barr) (larvae in ^9. vermiculatus) ; nine miles northwest of Grandview. Owyhee County, May 27, 1958 (W. F. Barr) (larvae in A. nuttalUi). August 10, 1953 (W. F. Barr) (larvae and pupae in A. nuttalUi), August 21, 1966 (E. J. Allen) (adults). September 14. 1955 (W. F. Barr and A. R. Gittins) (adults). Observations and rearings indicate that the larva of the clerid beetle. Enoclerus acerbus Wolcott, preys on larvae and pupae of M. brevipennis in the roots of the three host plant species. The Great Basin Naturalist 92 BARR AND PENROSE Vol. XXIX, No. 2 Megacyllene robinae (Forst.) This well-known species apparently has become established in several areas of southern Idaho. Collection records are available from Pocatello, Bannock County, September 28 and October 4, 1965; Good- ing, Gooding County, in mid-September (E. Koster) ; and Idaho Falls, Bonneville County, October 16, 1967. It has also been taken at Spo- kane, Washington. August 5, 1963 (S. M. Hogue) where it was found on apple wood. Meriellum proteus (Kirby) The expected occurrence of this species in the state is confirmed by a single specimen from Moscow Mountain, Latah County, Aug- ust 1, 1953 (R. H. Abbott). Monochamus notatus morgani Hopping A single Idaho collection record is now available for this sub- species from Elk River, Clearwater County, August 30, 1963 (R. Hoff). An adjacent state record is Swan Lake, Lake County, Mon- tana, July 18, 1963 (M. M. Furniss) on Pinus monticola Dougl. Neoclytus balteatus LeConte This species has been taken at three widely separated localities in southern Idaho. They are: Juniper Mountain, Owyhee County, August 15, 1963 (M. M. Furniss); Smith Prairie, Elmore County, August 14, 1963 (R. E. Miller); and St. Anthony, Fremont County, July 25, 1963 (R. E. Miller). The altitudinal range of these locations is from 4700 feet to 6800 feet. It may be of interest to note that no species of Ceanothus, the recorded host plant genus of A^. balteatus, occurs in the St. Anthony area, thus suggesting a broader host range than is presently known for this ceranbycid. Prionus {Homaesthesis) integer LeConte This species has been recorded previously from southcentral and southeastern Idaho (Linsley, 1962). A collection from Parma, Can- yon County, July 10, 1953, now establishes its distributional range across the southern portion of the state. A specimen from Moscow, Latah County, September 30, 1931, in northern Idaho must be re- garded as suspected mislabeling. Adults of P. integer are most commonly taken at lights. Larvae have been associated with the roots of Artemisia tridentata Nutt. and Chrysothamnus viscidi floras (Hook.) Nutt. On one occasion larvae were found damaging newly planted bean seeds in a field near Bur- ley, Cassia County, and in another instance, cutting underground July 31. 1969 notes of idaho ckrambycidae 93 stems of potato plants in a field near American Falls, Power County. In both cases the fields had been recently cleared for cultivation. Rosalia funebris Motschusky This attractive species, previously unreported from Idaho, is un- common but widely distributed in the state. It has been collected at Rocky Point. Benewah County, July 25, 1964 (R. W. Portman); Sandpoint. Bonner County. July 26, 1932 (W. Virgin); Moscow. Latah County, September 5, 1965 (IT. C. Manis). August 1951 (W. F. Barr), June 1950 (H. C. Manis), June 23, 1961 (C. M. Ott), July 28, 1961 (H. C. Manis); Culdesac. Nez Perce County. July 28, 1934 (C. Wakeland); and Twin Falls, Twin Falls County. July 24. 1960 (R. L. Williamson) and August 18, 1953 (A. R. Gittins). Specimens from Twin Falls have been reared from the wood of box elder Acer negundo Linn, and some specimens from Moscow are labeled "apple." Semanotus juniperi (Fisher) A significant extension of the distributional range of S. juniperi is based on a collection from the west slope of Black Pine Mountains. Cassia County, Idaho, June 10, 1954 (W. F. Barr). A single speci- men was dug from the wood of Juniper us osteosperma (Torr.) Little. This species was reported by Linsley (1964) as occuring in the "mountains of southern Arizona." Semanotus ligneus amplus (Casey) Specimens from northern Idaho localities can be referred to either S. I. amplus or S. I. basalis (Casey) on the basis of elytral markings. I'he known host plants of the former subspecies do not occur in this area whereas the host of the latter subspecies does. From the standpoint of distribution as given by Linsley (1964), these Idaho collections would best constitute an extension of the range of .V. /. amplus. Because of the distinct possibility of these two forms being synon- ymous it is perhaps best to consider the Idaho material as S. I. am- plus. The collection records are: seven miles east of Laird Park. I^tah County, April 17. 1962 (S. D. Smith); Moscow Mountain. Latah County, May 10. 1957 (G. N. Knopf); and St. Joe River. Shoshone County, May 21. 1941 (O. Huellemann). Semanotus ligneus conformis (Casey) Dead specimens assignable to this subspecies were dug from dead wood of Juniperus osteosperma (Torr.) Little five miles southwest of Oakley. Cassia County, June 15, 1967 (R. L. Penrose). Its occurronce in Idaho is not unexpected, inasmuch as Linsley (1964) recorded tins subspecies from northern Utah. The Great Basin Naturalist 94 BARR AND PENROSE Vol. XXIX. No. 2 Toxotus obtusus LeConte This dimorphic species is known from several states and Canadian provinces of the Pacific Northwest and northern Rocky Mountains (Hopping, 1937). but has not been recorded from Idaho. Present records for the state include: Targhee Pass. Fremont County, July 15. 1965 (R. L. Westcott); two miles southwest of Bannock Pass. Lemhi County. July 23. 1965 (R. L. Westcott); and two miles south of Troy. Latah County. June 11, 1965 (A. P. Gupta). The Bannock Pass specimens were found crawling on the soil surface and on the steins of Lupinus sp. Typocerus bait eat us Horn In Idaho this species appears to be confined to the broad areas of the southcentral and southeastern portions of the state at elevations ranging from 4800 to 6000 feet. Collections have been made at Elba- Basin Pass. Cassia County. August 23. 1958 (W. F. Barr). Augvist 25, 1959 (J. E. Henry) and September 10, 1965 (W. F. Barr and R. L. Penrose) ; five miles southwest of St. Anthony. Fremont County, September 6, 1967 (W. F. Barr and J. M. Gillespie) and September 14, 1965 (W. F. Barr); four miles east of Menan. Jefferson County, August 31, 1965 (R. L. Westcott); Register Rocks, Power County, August 15, 1966 (R. L. Penrose); three miles west of Tetonia. Teton County, August 11, 1966 (L. S. Hawkins); Rock Creek Ranger Sta- tion, Twin Falls County, July 8, 1965; and Rogerson, Twin Falls County, September 8. 1955 (R. A. Mackie). Most specimens were taken on the flowers of Chrysothamnus viscidiflorus (Hook.) Nutt. and a few on the flowers of C. nauseosus (Pall.) Britt. A specimen from the Tetonia collection exhibits a considerable reduction in elytra markings. The subbasal fascia is reduced to a pair of small discal spots, the median fascia to a pair of transverse spots, and the post median fascia is absent. Other specimens from this collection exhibit a tendency towards this extreme condition. Ulochaetes leoninus LeConte The occurrence of this distinctive species in Idaho is based on several collections from the following localities in the northern part of the state: Flat Creek. Latah County, June 1952 (T. F. McGill); south slope of Moscow Mountain, Latah County, August 22. 1964 (R. L. Westcott); and Troy, Latah County, August 6 and September 8. 1954 (R. H. Abbott). Linsley (1940) recorded it previously from British Columbia. Washington. Oregon. California and Nevada. Xylotrechus mormonus (LeConte) Only four specimens of this northern species are in the Univer- sity of Idaho collection. They were collected at the Craters of the Moon National Monument, Butte County. July 11, 1964 (D. S. Horn- July 31. 1969 notes of idaho cerambycidae 9'i ing); Basin. Cassia County, Juno 14. 1953 (P. Ashlock); Murphy Hot Springs. Owyhee County, June 20. 1965 (W. F. Barr) ; and Donnelly. Valley County, July 18, 1961 (W. F. Barr). No host in- formation is available for these Idaho specimens which constitute the first records for the state. Literature Cited Hopping. R. 1937. The Lepturini of America North of Mexico. Part II. Nation- al Museum of Canada, Bull. no. 85. pp. 1-42. LiNsi.EY. E. G. 1940. A Revision of the North American Necydalini (Coleop- tera, Cerambycidae). Annals of the Entomological Society of America. 33 (2): 269-281. ■ 1962. The Cerambycidae of North America. Part II. Taxonomy and Classification of the Parandrinae. Prioninae, Spondylinae. and Aseminae. University of California Publications in Entomology, 19: 1-102. . 1962. The Cerambycidae of North America. Part III. Taxonomy and Classification of the Subfamily Cerambycinae tribes Opsimini through Mega- derini. University of California Publications in Entomology, 20: 1-188. . 1964. The Cerambycidae of North America. Part V. Taxonomy and Classification of the Subfamily Cerambycinae, tribes Callichromini through Ancylocerini. University of California Publications in Entomology. 22: 1-197. LiNsi.EY, E. G. AND J. A. Chemsak. 1961. A Distributional and Taxonomic Study of the Genus Crossidius (Coleoptera, Cerambycidae). Miscellaneous Publications of the Entomological Society of America. 3 (2): 25-64. OVERWINTERING PHYTOSEIID MIFES IN CENTRAL UTAH APPLE ORCHARDS^ John W. Leethani and Clive D. Jorgensen- Predaceous typhlodromids ■ have been observed overwintering as adult females in fruit trees of northern temperate regions, but specific studies have been rather limited and no taxonomic or ecologic studies have been reported from Utah. Gilliatt (1935) and Garman and Townsend (1938) suggested that some adult phytoseiids overwintered under the bark of trees while others may seek shelter on the ground. Gilliatt (1935) further reported that adult Seiulus pomi Parrott (since divided into a number of Typhlodromus spp.) overwintered on twigs in Nova Scotia, concealed in such places as under rough bark, in old bud moth hibernacula. and in deserted oy- stershell scales {Lepidosaphes ulmi Linn.). Herbert (1953) found females of several species overwintering under bark scales of tree trunks and larger branches, in the empty hibernacula of eye-spotted bud moths (Spilonota ocellana D. and S.) . in empty oystershell scales, and in empty codling moth {Carpocapsa pomoneUa Linn.) cocoons. Chant (1959) found Typhlodromus bakeri (Garman) overwintering in deep crevices around scars and wounds and in the splintered ends of dying twigs. Rurrell and McCormick (1964) reported three species {Typhlodromus longipilus Nesbitt. Typhlodromus rhenanus (Oude- mans). and Typhlodromus occidentalis Nesbitt) hibernating under loose bark of lower tree trunks and in debris around the bases of trees. In a study of the overwintering sites in Ontario peach orchards large numbers of mites (mostly T. rhenanus) were found in bark crevices and deep protected cracks of cankers (Putman. 1959). Some were found in the splintered ends of broken or pruned branches, but none were found in superficially rough areas of living bark on the smaller limbs. Very few were found on twigs that were free of old Lecanium scales although large numbers were taken from twigs pos- sessing old scales. Only one investigation of the movement of mites from leaves to overwintering sites has been reported (Chant. 1959). He found no mites on leaves that had yellowed, but reported increases in the pop- ulations of Typhlodromus finlandicus Oudemans. Typhlodromus tiliae Oudemans (:= pyri Scheuten of Chant. 1959), and Typhlod- romus umbricatus Chant on the green leaves and twigs. Since mites were not found in the soil and cover, he concluded that they abandon 'This study was supported, in part, by grant no. 12-14-100-3029 (33) from the U.S. Depart- ment of Agriculture to Brigham Young (jniversity, and was completed by the senior author in partial fulfillment of the requirements for a Master of Science degree at Brigham Young University. =John \y. Leetham is at the Dept. of Zool., Col. State Univ.. Ft. Collins, Col.; Clive D. Jorgensen is at the Dept. of Zool. and Entomol., Brigham Young Univ., Provo. Utah. •"The nomenclature proposed by (^hant (1965) was adopted for this study. 96 July 31.1969 ovkrwintf.ring phytoseiid mitks 97 the yellowing leaves and move to the hranches and trunk to over- winter. Mortality rates of overwintering phytoseiids have been investi- gated only incidentally. Anderson and Morgan (1958) reported high winter mortality rates for several unidentified species of phytoseiids in British (>)lumbia. Their cak ulations were made by comparing mite numbers on leaves in the fall and spring, the difference being attributed to winter mortality. Using similar methods. Chant ( 1959) found more than 90% mortality in overwintering T. tiliae in Eng- land. Putman (1959) found mortality of Amblyseius faUacis (Gar- man) in Ontario peach orchards to be "very high." The purposes of this study were to identify the species of phyto- seiids overwintering as adults in central Utah orchards, to determine their overwintering sites, and estimate winter mortality rates and fall movements of Typhlodromus mcgregori Chant and 7. occidentalis— both of which are abundant in Utah apple orchards (Lee and Davis, 1968). Methods This study was made during three consecutive winters, 1965- 1968. in Utah County. Utah. Eleven derelict apple orchards (Jorgen- sen. 1967) located throughout Utah County were qualitatively sampled during the first winter to determine the species of mites overwintering as adults and to locate their overwintering sites. Soil, ground cover, twigs and spurs, and bark were sampled extensively from each orchard. Berlese funnels were used to isolate mites from the collected materials. Occasional samples of crotch refuse, aban- doned bird nests, and mmrunified fruit still clinging to the trees were collected. Twig-spur and bark samples were also collected from dere- lict orchards of other tree fruit varieties. Frequency charts were then developed to determine the primary overwintering sites of the most prevalent phytoseiid species. Movements of T. mcgregori and T. occidentalis from leaves to their respective overwintering sites were investigated during October and November, 1967. Two ap|)le orchards were used; a conunercial orchard in Orem. Utah for T. occidentalis, and a derelict orchard north of American Fork. Utah for 7'. mcgregori. Samples of 500 leaves were taken from five selected trees in each orchard once a week. Samples of leaves falling from each tree were also taken to check for mites falling to the ground with the leaves. Collections of falling leaves were made by placing a drop cloth beneath the trees and gently shaking the branches to dislodge the leaves. These data were analyzed with a /-test to determine whether or not the mean numbers of mites on dropping leaves were significantly smaller than the numbers found on green leaves still adhering to the trees. Incid- ental collections of twig-si^urs and bark were also taken from the commercial orchard in Orem. The specific location of overwintering sites was investigated dur- ing the winters of 1966 to 1968. In 1966. about 3{)() twigs and spurs The Great Btisin Naturalist 98 LEETHAM AND JORGENSEN Vol. XXIX, No. 2 from a derelict orchard in Mapleton, Utah were dissected to deter- mine the specific overwintering sites of phytoseiids. Five samples of 500 twig-spurs were collected during the winters of 1966-67 and 1967-68 and each twig cut into three sections based on years of growth as shown in Fig. 1. A year's growth was defined as the dis- tance between two sets of terminal bud scars. Surface areas for the three terminal sections were estimated from 25 arbitrarily selected twig sections from each of the samples. The data were analyzed with an analysis of variance (Ostle, 1963) to check for significant vari- ation in the number of mites among the sections. A study was attempted to determine the winter mortality rates of T. mcgregori. The orchard (102 trees) was divided into five nearly equal size blocks, and five trees randomly selected within each block. One hundred twigs were taken from each tree once each month for five months (December- April, 1967-68). The data were than anal- yzed with an analysis of variance (Ostle, 1963) to detect possible variations among the months. Results Nine species of physoseiids were found overwintering in central Utah apple orchards. Amblyseius cucumeris Oudemans, T. mcgre- gori, and T. occidentalis were the most numerous and most frequently collected, while Typhlodromus caudiglans Schuster, Typhlodromus columbiensis Chant, A. fallacis, Amblyseius floridanus (Muma), Amblyseius ovatus (Garman), and Amblyseius rosellus Chant were collected incidentally. A frequency table was developed to indicate overwintering site preferences for the three major species among the four habitats most frequently inhabited (Table 1). Typhlodro- mus mcgregori was present in all twig-spur and bark samples al- though in much smaller numbers on the bark. On the other hand, T. occidentalis was most common in bark samples and A. cucumeris most frequently collected from cover samples. All of the incidentally collected species were taken from cover, except that T. caudiglans was taken from twig-spurs and T. columbiensis from bark. Although T. mcgregori was about the only species present in derelict pear, apri- cot, peach, plum, cherry, and apple orchards, they were present in Table 1. Frequency of occurrence for the three most common phytoseiids among the habitats they most frequently inhabited. Species Frequency^ Twig-Spur Bark Cover Soil T. mcgregori 100.0 100.0 66.7 28.6 T. occidentalis 18.2 40.0 22.2 0.0 A. cucumeris 0.0 20.0 88.9 71.4 ''Frequency was computed as a percentage of all samples taken for each habitat. Jul V 3 1 . 1 969 OVERWINTERING PHYTOSEIID MITES 99 Section 1 One year's growth Section 2 Section 3 Section ^ two years, section 2 — area o o ved.s section 4 — area 9-15 years old. The Great Basin Naturalist 100 LEETHAM AND JORGENSEN Vol. XXIX. No. 2 almost all of them and were much more numerous in apple orchards than any of the other tree fruits. The numbers of mites collected from green and falling leaves were contrasted in the fall of 1967. Typhlodromus mcgregori num- bers on the falling leaves were not significantly smaller than those on the green leaves still adhering to the tree {t ■=■ 1.40. ^(21) (.95) = 2.08). In this analysis the green leaves for October and Novem- ber were pooled. A similar analysis for T. occidentalis resulted in the same conclusions, the numbers on the falling leaves were not signi- ficantly smaller than those on the green leaves still attached to the tree (t = 1.40, ^(13) (.95) = 2.16). Typhlodromus occidentalis mig- rated from the leaves to their overwintering sites at about the same time Tetranychus urticae Koch migrated to the trunk and cover in 1968, and since T. urticae usually migrates earlier than the data were gathered for T. occidentalis in 1967, the few predators remaining on the leaves may have been merely incidental and not indicative of the behavior of most members in the population. The few T. mcgregori observed on the twigs and spurs appeared to prefer sites beneath the corky abscission layers of the fruit stalks. The area of the twig that was 3 to 5 years old maintained the rough- est portions of twigs, primarily because of the remaining corky ab- scision scars of former leaf petioles and fruit stalks. The twigs lost most of their corky material and became smoother after five years, reducing the available overwintering sites. The terminal two years of growth characteristically displayed dense pubescence, but few good hibernating sites. Typhlodromus mcgregori moved from the leaves into the abundant overwintering sites on the 3 to 5 year old portions of the twigs in the fall. Twigs were sampled during the 1967-68 winter to test the hypo- thesis that T. mcgregori preferred the region from 3 to 5 years old for hibernating (Table 2). An analysis of variance was used to deter- mine if there were significant differences among the three sections tabulated in Table 2 (Table 3). Since the variance was significant, the section means were tested (?-test) to find which sections had significantly higher nmnbers. The only ones which were determined to be significantly different were sections 1 and 3 (? = 5.04, ^(8) (.95) = 2.31). It appears that the collection on February 3 in sec- tion 1 had a deciding influence on the significance tests. Data for winter mortality rates of T. mcgregori were pooled each month for all five blocks, since the numbers of mites were too small to analyze the trees separately (Table 4). An analysis of variance suggested that there was no significant winter mortality within the orchard ( oc = .05). If there were significant mortality of the suan,- mer populations during the winter, it would have been when they were finding their hibernacula or in the early spring after they had left there sites. When the mortality reported by Anderson and Mor- gan (1958). Chant (1959) and Putman (1959) occurred is yet to be determined. July 31. 1969 ovKinviNTEiuNG phytoseiid mites 101 Table 2. Number of Typhlodromus nicirrcgori per cm- in each twig section from a derelict orchard in Majjlelon. Utah. Mites per Sample Section and (sq cm) Mites per Date Mites per Section Surface Area 1800 sq cm" Section 1 March 15, 1967 1800.30 1 1.00 February 3, 1968 1493.12 34 40.97 March 2. 1968 1452.84 4 4.94 March 23. 1968 1649.30 11 11.96 March 29, 1968 1776.74 9 9.09 Mean 13.59 Section 2 March 15, 1967 2689.82 26 17.45 February 3. 1968 2648.72 39 26.53 March 2, 1968 2669.98 24 16.22 March 23, 1968 2287.74 29 22.83 March 29. 1968 2105.94 13 11.11 Mean 18.83 Section 3 March 15. 1967 2860.44 5 2.34 February 3, 1968 2610.64 9 4.48 March 2, 1968 3754.24 10 4.78 March 23, 1968 3273.26 13 7.14 March 29, 1968 2373.26 7 5.11 Mean 4.77 ''The number of mites in each sample is determined as the number of mites per 1800 cm- of twig surface area. Table 3. Summary of the analysis of variance of the data from Table 2, based on mites per 1800 cm- of twig surface area. MH ° s eder). I am grateful to Dr. Reeder for his counsel. — Jon Ghiselin. Dept. of Zoology, University of Wisconsin, Madison 53706. (present address: Biology Dept.. Lycoming College. Williamsporl. Pa. 17701). 109 $ s CO 3 >H ft S.-' <0 o tt c Q 4> x' 1 CO 0) ■5 m •^ O^ t>. <£) o (M vn t}- (o -rt 00 lo CO vn -2 i=l o « X 3 CO C Of U Of oorooqooxnx^T}-T}-c^fOTj- OO^OOC^O'^-^OOCSJ ooxn-^vr)xn-HcgT}-o4^ao oo)T-c(^O'^C>^OO^t^ The Volume XXIX, No. 3 September 30, 1969 MUS. CO MP. ZOCL. LIBRARY MAR 11971 HARVARD UNIVERSITY Great Basin nmmim Published by Brigham Young University GREAT BASIN NATURALIST Editor: Vasco M. Tanner, Department of Zoology and Entomology Brigham Young University, Provo, Utah Associate Editor: Stephen L. Wood, Department of Zoology and Entomology, Brigham Young University, Provo, Utah Members of the Editorial Board: Perron L. Andersen (5), Zoology Jay V. Beck (3) , Bacteriology Robert W. Gardner ( 1 ) , Animal Science Joseph R. Murdock (4) , Botany WiLMER W. Tanner (2), Zoology, Chairman of the Board Stanley L. Welsh (1), Botany Ex officio Members: A. Lester Allen, Dean, College of Biological and Agri- cultural Sciences Ernest L. Olson, Chairman, University Pubhcations, Uni- versity Editor The Great Basin Naturalist Published at Phovo, Utah by Brigham Young University Volume XXIX September 30, 1969 No. 3 NEW SYNONYMY AND RECORDS OF PLATYPODIDAE AND SCOLYTIDAE (COLEOPTERA)' Stephen L. Wood- During the past year the opportunity came for me to study the types of bark and ambrosia beetles (Platypodidae and Scolytidae) in three old, significant collections. The oldest of these is the collection of Count C. (t. Mannerheim, presently housed in the Universitetets Zoologiska Museum, Helsinki, Finland. It is noteworthy because it contains the types of species taken in Russian America (mostly Alaska) at an early date when few American species were known. Most of the 17 species of concern here were previously correctly known to specialists; noteable exceptions involve Bostrichus (now Ips) tridens, Hulurgus (now Pseudohylesinus) sericeus, and a new status for H. (now Dendroctonus) obesus. The second collection considered here, in terms of age priority, is that of Victor von Motschulsky presently housed at the Zoological Institute of the USSR. Moscow. The 26 species of concern here were described largely from Ceylon and. for the most part, have been known to specialists only from the original descriptions and a very few duplicate specimens evidently distributed by Motschulsky. Previous workers were not successful in locating the types and have either ignored the names or have considered the types lost or de- stroyed. The policy adopted here in this article apparently is con- sistent with the action of previous workers; that is, specific names of these species were given their normal place in priority, but three generic names, Anodius (1860) and Phloeotrogus (1863) (=Xyle- borus Eichhoff, 1864), and Olonthogaster (1886) (=PhIoeosinus Chapuis, 1869) clearly predate the priority of names now used for the genera to which they apply. These names. Xyleborus and Phloeosinus. have been applied consistently for a century to large genera of almost world-wide distribution and it is not in the interest of nomenclatorical stability that they be changed. .Mthough Anodius. Phloeotrogus, and Olonthogaster have been hsted in catalogs in an 'The travel grant that made this report possible was provided by the National Sricnrc Founiln- tion through the Entomological Society of America. -Department of Zoology and Entomology, Brigham Young University. Provo. Utah; Scolytoidea contribution No. H). 113 The Great Basin Naturalist 114 STEPHEN L. WOOD Vol. XXIX, No. 3 incerta sedis category, I feel they qualify as nomena oblita. The case v^dth the monobasic Genyocerus (1858) is different. Strohmey- er evidently deliberately named a homonym in the genus Diapus to replace G. alhipennis, the type-species of Genyocerus. It apparently has been clearly recognized that albipennis belongs to the species group currently assigned to Diacavus Schedl. 1939. Contrary to Schedl's (1959:515) statement, the type of albipennis is available and the characters of Genyocerus are clearly definable as his place- ment of albipennis in Diacavus indicates. Diacavus was established recently and it involves a limited number of species (about 15) from a restricted region (oriental). For these reasons I place Diacavus Schedl in synonymy under the much older name Genyocerus Mot- schulsky {New synonymy). The third collection treated here is part of the Felicien Chapuis material on which his 1869 (and 1873) Synopsis des Scoly tides was based. This part of his material is currently housed in the Institut Royal des Sciences Naturelles de Belgique. Brussells. Because a more extensive treatment of the American material contained in this collection is in preparation, only four items of immediate con- cern are treated here. My sincere appreciation is extended to the above named institu- tions for their kindness in permitting me to examine their material; and to Dr. Walter Hackman and Mr. Hans Silfverberg. at Helsinki. Dr. A. N. Zhelochovtsev, at Moscow, and Dr. Roger Damoiseau, at Brussells, for their kindness and cooperation. In order to resolve some of the problems presented here and to facilitate other work, six American species are described below as new to science. These species are in the genera Pseudohyle sinus ( 1 ) , Phloeotribus (3) , and C hramesus (2). Mannerheim Collection Of the 17 species of Scolytidae named from Alaska by Manner- heim, subsequent workers have correctly placed most of them. A few have been misidentified. My comments on the collection follow. Bostrichus affaber Mannerheim (1852) This species has correctly been referred to Dryocoetes. The type is a female. Bostrichus cavifrons Mannerheim (1843) Three specimens taken at Sitka by Holmberg are in the Manner- heim drawer wdth the types, but none has been designated as the type. In another drawer containing general Mannerheim Scolytidae there are eight specimens designated "Spec, typ.," collected by D. Eschscholtz or Blaschke. Evidently the type, collected by Eschscholtz, is among the latter eight specimens. All are of Trupodendron linea- tum (Olivier) with which this species has correctly been placed in synonymy. Sept. 30. 1969 new synonymy and rkcords 115 Bostrichus concinnus Mannerheim (1852) This species has correctly been referred to the genus Ips. The type is a female. Bostrichus inter ruptus Mannerheim (1852) This species has correctly been referred to the genus Ips. The type is a female. Bostrichus nitidulus Mannerheim (1843) This species has correctly been referred to the genus Pityoph- thorus. The type is a female. Bostrichus semicastaneus Mannerheim (1852) This species has correctly been made a junior synonym of Dry- ocoetes autographus (Ratzeburg). The sex of the type was not determined. Bostrichus septentrionis Mannerheim (1843) This species has been made a junior synonym of Dryocoetes auto- graphus (Ratzeburg). A specimen bearing this name was not found in the Mannerheim collection. Bostrichus terminalis Mannerheim (1843) This species belongs in the family Cisidae. Bostrichus tridens Mannerheim (1852) This species has correctly been referred to the genus Ips. The type is a female exactly identical to the female type of Ips inter- ruptus (Mannerheim) {new synonymy). The name interruptus appears first on the page, but I exercise the right as first revisor in this instance and select the name tridens for this species. The mor- phological form having a greatly enlarged female frons, generally known as Ips tridens, does not require a new name; it will be treated in the near future in a detailed study by Dr. Gerald Lanier. Cryphalus striatulus Mannerheim (1853) A specimen bearing this name could not be found in the Manner- heim collection. It evidently is the species currently known as Trypophloeus nitidus Swaine. Hylastes cristatus Mannerheim (1853) A specimen bearing this name could not be found in the Manner- heim collection. It has been treated as a junior synonym of Hylur- gops subcostulatus (Mannerheim). The Great Basin Naturalist 116 STEPHEN L. WOOD Vol. XXIX, No. 3 Hylastes subcostulatus Mannerheim (1853) This species has correctly been transferred to the genus Hylur- gops. There were no specimens under this name in the Mannerheim material; however, it is easily recognized from the original descrip- tion. Hylurgus nigrinus Mannerheim (1852) This species has correctly been referred to the genus Hylastes. The type is a female. Hylurgus obesus Mannerheim (1843) This species has correctly been referred to Dendroctonus. While my (Wood, 1963) revision of Dendroctonus was in press a delayed comparative note on the type of D. rufipennis (Kirby) was received indicating that obesus is a junior synonym. In my absence the cor- rection was properly placed in the synonomy but the senior name was not substituted elsewhere in the manuscript. Since then I have re-examined the types of both obesus and rufipennis. There are obvious synonyms, with the name rufipennis having priority {new status). Hylurgus pumilus Mannerheim (1843) This species has correctly been referred to the genus Dolurgus. The sex of the type was not determined. Hylurgus rugipennis Mannerheim (1843) This species has correctly been referred to the genus Hylurgops. The specimen labeled "Type" in the Mannerheim type collection was not collected by Eschscholtz and, therefore, probably is not actually the type. Seven other specimens of this species in the Mannerheim material are from Sitka, but were also taken by other collectors. Hylurgus sericeus Mannerheim (1843) Under this name in the Mannerheim collection are two speci- mens. The second specimen belongs to the genus Leperisinus and is from Louisiana. The first is from Sitka, collected by Blaschke, and is considered to be the type. This specimen is a female of the species generally known as Pseudohylesinus grandis Swaine {new synony- my) ; Swaine's name, therefore, must be placed in synonomy. Pseu- dohylesinus sericeus of Swaine and Blackman is an unnamed species (see below). Polygraphus saginatus Mannerheim (1853) This species has correctly been placed as a junior synonym of P. rufipennis (Kirby). The only specimen of this species in the Mannerheim material is a female without locality data, bearing the generic and specific names, but no author or other identifying in- formation. It could be the type, but it is not so designated. Sept. 30, 1969 new synonymy and records 117 MOTSCHULSKY COLLECTION The types of 26 species of Scolytidae and Platypodidae are in the Motschulsky collection. Synonymy for nine of the species has been suggested by previous workers, based on an examination of the original descriptions or of a very few duplicate specimens ])resuma- bly distributed by their author. The taxonomic j)lacement of the 1 7 remaining species has not been clear. It was noted that labels were mostly written in (jemian and did not always corresj)ond with the published type locality designated by Motschulsky. However, after examining the entire Motschulsky collection presently avail- able, I see no reason whatever to question the types as they are presently designated. Five of them have been carefully remounted on the same pin above the original microcard, and all bear a red type label in addition to the original designation. My comments on the alphabetically arranged Motschulsky species follow. Anodius denticulatus Motschulsky (1860) Six female specimens are mounted individually on six micro- cards on one pin. The upper five are Xyleborus perforans Wol- laston; the sixth specimen, placed in the lowest position on the pin. is Xyleborus similis Ferrari. I here designate the uppermost speci- men as the lectotype of denticulatus Motsch. {new synonymy). Anodius distinctus Motschulsky (1866) One female specimen. Comparative material was not at hand for varification, but this species is Coccotrypes floridensis Schedl which is the species I have recognized as C. carpophagus Hornung. Schedl refers Hornung's name to a different species. C. pygmaeus Eichhoff; I have not yet verified his synonymy. Regardless of how the later problem is resolved Coccotrypes distinctus (Motsch.) is a senior synonym of C. floridensis Schedl {new synonymy). Anodius piceus Motschulsky (1863) One female specimen. Fhis species is Xyleborus indicus Eichhoff. The apices of the elytra are immersed in glue. The pronotuni is subquadrate, the color is dark, the basal half of the elytral declivity may be very slightly more convex than in many indicus, but it is within the range of variation for this species. Xyleborus piceus (Motsch.) has priority and must replace X. indicus Eichhoff {new synonymy) . Anodius tuberculatus Motschulsky (1863) Two female specimens. 1 hey were compared directly to authen- tic specimens of Xyleborus perforans Wollaston; there is no question as to the synonymy. Wollaston's name has priority {n^w synonymy) . The Great Basin Naturalist 118 STEPHEN L. WOOD Vol. XXIX, No. 3 Eccoptopterus sexspinosus Motschulsky (1863) Three females labeled "India occidental, Birma." The length of these speciments is about 2.3 mm., and the second and third pairs of teeth on the elytral declivity are smaller, with the second pair closer together than in my specimens of E. spinosus {Olivier). In spite of these differences, I feel the previously suggested snyonymy is correct. Genyocerus adustipennis Motschulsky (1859) One female specimen, from Japan. An examination of the litera- ture treating the Platypodidae of Japan strongly suggests that this is Crossotarsus niponicus Blandford. Synonymy should await varifica- tion of this observation. Genyocerus albipennis Motschulsky (1858) One female speciman labeled "Aus Indien or (word illegible)." It is about 2.5 mm. in length; the frons is elaborately ornamented by slight impressions on lateral areas that extend dorsad to the upper level of the eye, with tufts of coarse, long hair occupying the lateral thirds from the upper level of the eye to two-thirds of the distance toward the mandibles and projecting forward a distance equal to the length of the head then curling back toward the mouth and touching the mandibles; additional tufts arise on the mouthparts and curl up- ward to the middle of the frons; median one-third to one-half of frons glabrous; base of pronotum with about a dozen coarse pores. This is a Diacavus species reminiscent of quadriporus Schedl, but distinct. However, as indicated above Diacavus must be placed in synonymy under the much older Genyocerus. Hylesinus granulifer Motschulsky (1863) Two male specimens mounted on one pin. These specimens agree in all details with my male of H. despectus Walker, from Tonkin. Hylesinus sericeus Motschulsky (1866) One female specimen. It belongs to the genus Cryphalus, and probably is C. indicus Eichhoff. The size, sculpture and setae fit indicus, but specimens were not at hand for comparison. Hypoborus cinerotestaceus Motschulsky (1866) One female specimen in very poor condition. It is about 1.3 mm. in length, with erect, interstrial rows of stout setae, the length of each less than half as great as distance between rows. It is similar to paganus Eichhoff or pallidus Eichhoff, but specimens were not avail- able for comparison. Sept. 30. 1969 new synonymy and records 119 Hypoborus dorsalis Motschulsky (1866) Two females and one male mounted on one card on one pin. They are of Cryphalus indicus Eichhoff, or very near. The size, sculpture and setae are as in indicus, however, specimens were not available for direct comparison. Hypoborus nebulosus Motschulsky (1866) Two specimens, probably males, with the frons hidden. Also of Cryphalus, probably indicus. The size, sculpture and setae are as in indicus, however, specimens were not available for direct comparison. Olonthogaster nitidicollis Motschulsky (1866) One female specimen. This is a large Phloeosinus similar to asper (Sampson). Specimens were not available for comparison. Olonthogaster nitidifrons Motschulsky (1866) One male specimen. This is a Phloeosinus species presently un- known to me. It is about 2.5 to 2.7 mm. in length; decli vital inter- striae 1 and 3 each bear three or four widely separated, sharply pointed teeth. Phloeotrogus attenuatus Motschulsky (1863) One female specimen. This specimen is Xyleborus sordicauda (Motsch.) (new synonymy) and is known to specialists by that name. It agrees completely with my homotype. Phloeotrogus bidentatus Motschulsky (1863) One female specimen labeled "India occidental." This specimen agrees with the species generally known to specialists as Xyleborus bidentatus (Motsch.) My specimen was compared directly to the type. Phloeotrogus crassiusculus Motschulsky (1866) Three females labeled "India occidental," mounted on individual microcards on one pin. The specimens are somewhat greasy, making the transition from shiny to apaque areas on the elytra difficult to see. My homotype (2.8 mm.) is very slightly larger than the types, but it is clearly Xyleborus semiopacus Eichhoff {new synonymy) . Motschulsky's name has priority. Phloeotrogus obliquecauda Motschulsky (1863) Four females labeled "India occidental." This species is allied to Xyleborus minor (Stebbing) and is of the same size and proportion; however, the declivital sculpture and armature are much more nearly like X. tachyderus (Zimmermann). It is a species presently unknown to me. The Great Basin Naturalist 120 STEPHEN L. WOOD Vol. XXIX. No. 3 Phloeotrogus sordicauda Motschulsky (1863) Two female specimens. These specimens were compared to my specimen and the characters agree completely. It is the sj)ecies known generally among specialists as Xyleborus sordicauda (Motsch.). Phloiotrihus subquadratus Motschulsky (1866) One specimen. This specimen superficially resembles the genus Phloeotribus, but it belongs to the family Anobiidae. Platypus caudatus Motschulsky (1863) Six male specimens labeled "India oriental," all badly covered by fungal growth, unquestionably are Platypus solidus Walker as was previously suggested. Platypus cordatus Motschulsky (1863) Four female specimens labeled "India oriental." These speci- mens agree with my female homotype except that the major prono- tal pores are very slightly smaller. It is a junior synonym of Platy- pus solidus Walker (new synonymy) . Platypus luniger Motschulsky (1863) Three males and three females labeled "India oriental." Notes and diagrams indicates this species is Platypus caliculus Chapuis {new synonymy). Platypus rotundicauda Motschulsky (1863) Two female specimens labeled "India oriental." At the present time I am not familiar with the Platypus species to which this name should be associated. Tomicus adusticollis Motschulsky (1863) One female labeled "Ceylon." This specimen is about 2.2 mm. in length; my notes and diagram indicate it is Xyleborus pumilus Eggers. A specimen was not available for direct comparison {new synonymy) . Tomicus quadrispinus Motschulsky (1863) One female labeled "India or Birma." This specimen is about 2.5 mm. in length; it is either Xyleborus amphicranulus Eggers, a small specimens of X. emarginatus Eichhoff or very closely related. More specimens of these species are required to more fully under- stand their ranges of variation. Sept. 30. 1969 new synonymy and records 121 Chapuis Collection Only a few items relating to the Chapuis (1869) tyjies are men- tioned here, the remainder will he treated in a later publication. Hylastes vastans Chapuis The female holotype is labeled "Mexico, Dy." It was compared directly to my homotype of Hylastes gracilis LeConte and is of the same species. LeConte's name has priority {neu^ synonymy) . Dendroctonus parallelocollis Chapuis The type evidently is a female; it is labeled "Mexico. Dy." My concept of this species (1963) was based on specimens supposedly compared to this type by Hopkins, Eggers, and Schedl. All clearly were in error. The type is identical to D. aztecus Wood {new synonymy). The species for which the name parallelocollis has been used in all references except Chapuis (1869) must now take the name of the only available iunior synonym, D. approximatus Hopkins. Phloeotribus obliquus Chapuis The Chapuis series consists of four specimens, two labeled as types, and two as "ex-typus" identified by Chapuis. The first syn- type is a female of P. transversus Chapuis (types compared direct- ly); the second syntype and both of the other specimens (ex-typus) are of the one species. I here designate the second syntype to be the lectotype of P. obliquus Cha{)uis. There is no indication on either specimen or in subsequently studied material to suggest a Mexican (or even a Central American) origin for specimens of this species. Phloeotribus sulcifrons Chapuis This species has been widely reported from Central America. The female type, however, from Colombia, is quite different. The female frons is narrowly, rather strongly sulcate from the vertex to the position normally occupied by a frontal fovea in this genus. Pronotal and elytral characters also indicate that P. sulcifrons of Blandford and other authors, from Central America, requires a new name (see below). Supplemental Notes Liparthrum Wollaston (1854) The original spelling of this generic name was Leiparthruni; in 1864, Wollaston changed it to Liparthrum which was used consis- tently from then until Bright (1968) declared Wollaston's (1864) action an unjustified emendation, evidently without seriously study- ing the matter, and reverted to tlie 1854 spelling. Article 33a of the International Code says a justifiable emendation "is the correction The Great Basin Naturalist 122 STEPHEN L. WOOD Vol. XXIX. No. 3 of an incorrect original spelling and the name thus emended takes the date and authorship of the original spelling." This generic name was based on the Greek root leipo which transliterates into the Latin lipo. VVollaston, in 1864. clearly indicated by a footnote that his emendation was intentional; he evidently assumed his reason for the change was obvious. The spelling Liparthrum, therefore, is correct and should be continued in the interest of nomenclaturial stability. Phloeotribus Latreille (1802/3) This generic name was originally presented as Phloiotribus (Latreille, 1796), a nomen nudum; it was validated in 1802/3 by the same author. Later, Erichson (1836), recognizing the same type of problem in transliterating the Greek root word phloios into the Latin phloeos as treated above, emended the name to Phloeotribus. With one or two minor exceptions (including that of Motschulsky, used above) the spelling Phloeotribus has been used consistently from 1836 until an apparent attempt to revive the original spelling by Barr (1969), presumably influenced by Bright. Erichson's emendation was justifiable under article 33a of the International Code and should be preserved. Chaetophloeus phoradendri Wood, emendation In the recent validation of this name (Wood. 1969:8), the spe- cific designation inadvertently was spelled phorodendri. It should be corrected to phoradendri to correspond with the generic name of its host. Pseudohylesinus pini, n. sp. This is the species previously knovsoi as Pseudohylesinus sericeus of Swaine, Blackman. etc., not Mannerheim. As indicated above, the type of Mannerheim' s species is of a different species than was treated by Swaine and Blackman. This species is distinguished from sitchensis Swaine by the smaller average size, by the more strongly arcuate sides of the pro- notum. by the stouter scales on the female pronotum, and by the host. Female. — Length 2.6 mm. (para type 2.3-2.8 mm.) 2.2 times as long as wide; color very dark brown with a mottled pattern of dark and light scales. A complete description of this species is given by Blackman (1942:24) under the name P. sericeus. Male. — Similar to female except slightly smaller, stouter; frons broadly, more strongly impressed; pronotal scales somewhat stouter. Type Locality. — Pacific Grove, California. Type Material. — The female holotype, male allotype and three para type were collected at the type locality on December 12. 1923, from Monterrey pine; one male paratype is labeled "Carmel Cal., 5-IV-25. F. 0. Ballon, Pinus radiata.'' The holotype. allotype, and paratypes are in my collection. Sept. 30. 1969 new synonymy and records 123 Phloeotribus quercinus, n. sp. This species is closely allied to pruni Wood, but it may be distin- guished by the less strongly attenuate lateral extension of segments of the antennal club, by the absence of submarginal crenulations near the elytral bases, by the coarser pronotal punctures, and by the host. Female. — Length 2.0 mm. (paratypes 1.8-2.1 mm.), 1.9 times as long as wide; color black. Frons evenly convex above level of antennal insertion, trans- versely impressed below, smooth epistomal margin slightly elevated; premandibular lobe small, distinct; surface strongly reticulate, punc- tures small, obscure, rather close; vestiture fine, hairlike, rather sparse. Antennal club with segments 1 and 2 each very slightly less than twice as wide as long. Pronotum 0.82 times as long as wide; widest at base, sides arcuate, converging to a slight constriction just before broadly round- ed anterior margin; surface reticulate, devoid of all indications of asperities, punctures coarse, moderately deep, separated by distances up to diameter of a puncture; part of median line impunctate in front of middle; vestiture very fine, long. Elytra 1.35 times as long as wide, 2.0 times as long as pronotum; sides almost straight and parallel on basal two-thirds, rather broadly rounded behind; scutellum small, rounded, scutellar notch rather deep; basal margins each armed by 14 rather narrow, high crenula- tions. devoid of submarginal crenulations; striae weakly impressed toward declivity, punctures moderately coarse, deep; interstriae slightly wider than striae, devoid of punctures, moderately large, rounded granules moderately confused. Declivity convex, steep; striae moderately impressed; interstriae feebly convex, not elevated, granules almost uniseriate. Vestiture consisting of fine, semirecum- bent strial hair, and erect, confused interstrial bristles of uniform length, fine at base, becoming stout and shorter toward declivit}^ each almost equal in length to width of an interspace. Male. — Unknown. Type Locality. — Sixteen km. (10 mi.) east of Pachuca, Hidalgo, Mexico. Type Materlal. — The female holotype and 22 female paratypes were collected at the type locality on June 10. 1967. 2.600 m.. No. 5, by S. L. Wood, in broken Quercus branches less than 2 cm. in diameter. The holotype and paratypes are in my collection. Phloeotribus destructor^ n. sp. This species is closely related to frontalis (Olivier), but it may be distinguished by the absence of the tubercles on decli vital inter- striae 1 to 4. by the much coarser pronotal punctures, with the inter- spaces between them devoid of impressed points, and by the different host and distribution. The Great Basin Naturalist 124 STEPHEN L. WOOD Vol. XXIX, No. 3 Male. — Length 2.2 mm. (paratypes 1.8-2.5 mm.) 2.1 times as long as wide; color dark brown. Frons shallowly, broadly concave from epistomal margin almost to level of upper margin of eyes; lateral margins armed by a pair of moderately large, pointed tubercles at level of antennal insertion; surface shining, subreticulate below, almost rugulose above, marginal areas above tubercles with rather abundant, small, rounded granules; vestiture of rather abundant, coarse, short hair. Segment 1 of an- tennal club 2.6 times as wide as long. Pronotum 0.81 times as long as wide; widest at base, sides rather weakly, arcuately converging to a feeble constriction just behind anterior margin, rather narrowly rounded in front; surface coarsely, very closely, rather shallowly punctured, a few granules and fine asperities in anterolateral areas, interspaces between punctures less than half as wide as diameter of a puncture, devoid of impressed points; vestiture of rather fine, moderately abundant, short hair. Elytra 1.4 times as long as wide. 1.9 times as long as pronotum; sides almost straight and parallel on basal two-thirds, rather narrow- ly rounded behind; scutellar notch rather shallow, obtuse; basal margins each armed by 12-14 coarse, overlapping crenulations; striae moderately impressed, punctures deep, rather fine on basal fourth, becoming coarser toward declivity; interstriae as wide as striae, closely crenulate, crenulations confused, each about half as wide as an interstriae, low except at base and much larger at base of declivity. Declivity convex, moderately steep; striae narrowly im- pressed, punctures rather small; interstriae 1 to 8 equally convex, armed at base by crenulations that increase in size laterally, inter- striae on declivital face not at all granulate, uniseriately. finely punctured, except 9 joining costal margin, its elevation and course tubercles continuing to apex. Vestiture of slender, interstrial bristles of uniform length, slightly confused on most of disc, becoming uniseriate toward and on declivity, on declivity each equal in length to distance between rows. Female. — Similar to male except frons convex, a narrow, trans- verse impression immediately above epistoma, lateral tubercles absent. Type Locality. — Morelia, Mochoacan. Mexico. Type Material. — The male holotype, female allotype, an,d 5 paratypes were taken in the gardens behind No. 25 Avenida Acue- ducto at the type locality on June 14, 1965, in a peach tree. No. 57, by S. L. Wood; 12 paratypes were collected 19 km. (12 mi.) east of Carapan, Michoacan, on June 18, 1965, in wild cherry. No. 76, by S. L. Wood. The holotype, allotype, and paratypes are in my collection. Phloeotribus furvus, n. sp. As indicated above, this is the Central American species pre- viously reported as Phloeotribus sulcifrons by Blandford (1897) and others. From the type of sulcifrons it differs by the convex female Sept. 30, 1969 new synonymy and records 125 frons. by the more closely punctured pronotum, and by the more finely, more closely placed interstrial crenulations (obscurely three to four ranked on each interstriae; only two to three ranked in sulcifrons) . Male. — Length 3.0 mm. (paratype 2.8-3.3 mm.), 1.6 times as long as wide; mature color black. Frons broadly, shallowly, subconcavely impressed from epistoma to upper level of eyes, lateral margins weakly elevated, except more strongly raised at level of antennal insertions, unarmed, a low. transverse callus at level of antennal insertions; surface strongly reticulate, with rather close, shallow punctures of moderately small size. Antennal scape with a small tuft of rather short hair, segment 1 of club more than eight times as wide as long. Pronotum 0.80 times as long as wide; basal margin obtusely ex- tended posteriorly, with median fourth more acutely extended; widest just in front of posterolateral angles, rather strongly, arcuate- ly convergent, weakly constricted just before rather narrowly round- ed anterior margin; surface very densely, rather coarsely punctured, becoming somewhat granulate on anterior third; anterolateral angles with two or three coarse asperities, a row of small asperities extend- ing along anterior margin to opposite sides; vestiture of minute, dark setae at least in lateral areas. Elytra 1.03 times as long as wdde, 1.4 times as long as pronotum; sides weakly arcuate to base of declivity, rather broadly rounded behind; scutellar notch abrupt, deep, broad; basal margins each armed by 19 low, overlapping crenulations, striae abruptly, narrow- ly, deeply impressed, punctures small, deep; interstriae twice as wide as striae, dense crenulations narrow, rather high, often obscurely three-ranked, general surface evidently minutely punctured. De- clivity convex, steep; interstriae as on disc but slightly narrower, median tubercles larger, others largely absent, 9 moderately elevated from middle of declivity anteriorly. Vestiture of minute, abundant, confused, hairlike bristles, each about equal in length to one-third width of an interstriae. Female. — Similar to male except frons convex, with an in- distinct central fovea, punctures larger, very shallow, antennal scape not ornamented by hair; interstriae 9 less strongly elevated. Type Locality. — Turrialba. Cartago Province, Costa Rica. Type Material. — The male holotype, female allotype and 29 para types were collected at the type locality on March 9. 1964, 2,000 ft. elevation. No. 459, from a broken limb of an unidentified tree, by S. L. Wood. The holotype, allotype, and para types are in my collection. Chramesus vitiosus, n. sp. This species was confused with crenatus Wood until an attempt was made to construct a key to include it. From crenatus it is distin- guished by the shorter, erect interstrial bristles, by the absence of The Great Basin Naturalist 126 STEPHEN L. WOOD Vol. XXIX, No. 3 male strial punctures, and by the greater distribution of pronotal punctures. Male. — Length 1.3 mm. (para types 1.2-1.5 mm.), 1.4 times as long as wide; color very dark brown, vestiture pale. Frons broadly, deeply concave from epistoma to well above eyes, lateral margins acutely, strongly elevated, attaining a subserrate summit at level of antennal insertion, lower tubercle predominating; surface shining, finely reticulate, punctures not clearly evident; vestiture fine, inconspicuous. Antennal club moderately large. 2.3 times as long as wide. Pronotum 0.72 times as long as wide; widest on basal fom-th, sides arcuately converging to slight constriction just before rather broadly rounded anterior margin; surface subreticulate, rather closely asper- ate, asperities largely replaced by fine punctures in postermedian area, a few punctures occur almost to anterior margin in median area; vestiture of moderately abundant, short, stout, pale bristles over entire surface. Elytra 0.91 times as long as wide, 1.4 times as long as pronotum; basal margins each armed by about 12 partly contigious, low crenu- lations; sides straight and parallel on less than basal half, broadly rounded behind; striae distinctly impressed, glabrous, punctures ob- solete; interstriae as wide as striae, almost smooth, small punctures close, confused. Declivity convex, rather steep; a few strial punc- tures obscurely present. Vestiture consisting of a ground cover of closely set short scales, each scale about twice as long as wide; and interstrial rows of erect, scalelike bristles, each bristle not more than twice as long as ground scales, about half as long as distance between rows or between bristles in a row. Female. — Similar to male except frons weakly convex, foveate at center, a weak, transverse impression iust above epistoma; punctures on pronotum slightly coarser and more widely distributed; strial punctures small, distinctly impressed; occasional very small inter- strial granules evident; scales in interstrial ground cover only slight- ly longer than wide. Type Locality. — Eight km. (5 mi.) south of Rosamorada, Na- yarit, Mexico. Type Material. — The male holotype, female allotype, and 48 para types were collected at the type locality on July 14, 1965, 100 m. elevation, from Inga paterno, by S. L. Wood. Additional paratypes were taken in Nayarit as follows: 14 from 48 km. (30 mi.) north of Rosamorada, July 15. 1965, 100 m.; 1 from I^s Corchos. July 10, 1965, 10m.; all from the same host and collector. Chramesus minulus, n. sp. This species is closely allied to acacicolens Wood, but it is distin- guished by the smaller size, by the more slender form, by the much shorter, erect, interstrial scales, and by the much stouter pronotal scales. Sept. 30, 1969 new synonymy and records 127 Female. — Length 1.25 mm. (paratype 1.3 mm.), 1.8 timies as long as wide; color yellowish brown. Frons weakly convex, somewhat flattened on upper half, a slight, transverse impression just above epistoma; surface minutely rugu- lose-reticulate, fine punctures indistinct; vestiture short, rather sparse, stout. Antennal club rather small for this genus. 2.0 times as long as wide. Pronotum 0.80 times as long as wide; widest at base, sides rather weakly arcuate and converging slightly on basal two-thirds, broadly rounded in front; surface rather finely, closely granulate-punctate (largely obscured by scales), becoming finely asperate toward antero- lateral anglts; vestiture of short, oval, almost white scales. Elytra 1.2 times as long as wide, 1.7 times as long as pronotum; basal margins each armed by 13 crenulations; sides almost straight and parallel on slightly more than basal half, rather broadly round- ed behind; striae weakly impressed, punctures coarse, shar[)ly im- pressed, rather shallow; interstriae about one and one-half times as wide as striae, moderately convex, smooth, with minute, confused punctures, each interstriae with a median row of very fine granules. Declivity convex, moderately steep; essentially as on disc. Vestiture consisting of a ground cover of short scales, each scale as long as wide, slightly more than a third as wide as an interstriae; and median interstrial rows of erect scales, each only slightly longer than ground scales and mostly less than twice as long as wide. Type Locality. — Le Ceiba, Honduras. Type Material. — The female holotype and one female paratype were collected at the type locality, at light, in 1949. by E. C. Becker, the holotype on June 10, the paratype on May 29. The holotype and paratype are in my collection. References Cited Blackman, M. W. 1942. Revision of the bark beetles belonging to the genus Pseudohylesinus Swaine. U. S. Dept. Agric. Misc. Pub. 461, 32 p. Bi-ANDFORD, W. F. H. 1895-1905. Fam. Scolytidae. Biol. Centr.-Amer., Coleopt. 4(6): 81 -298, pis. 4-9. Barr. B. 1969. Sound production in Scolytidae (Coleoptera) with emphasis on the genus Ips. Canadian Ent. 101:636-672. Bright, D. E., Jr. 1968. Review of the genus Leiparthrum in North America. with a description of one new species (Coleoptera: Scolytidae). Canadian Ent. 100:636-639. Chapuis, F. 1869. Synopsis des Scolytides, 61 p. (1873. Synopsis des Scolytides. Mem. Soc. Roy. Sci. Liege, ser. 2, 3:213-269). Erichson, W. F. 1836. Systematische Auseinandersetzung der Familie der Borkenkafer (Bostrichidae). Arch. Naturg. 2(l):45-65. Latreille, p. a. 1796. Phloiotribus. p. 50, in Precis des caracteres generiques des insects, disposes dans un order naturel. 201 p. . 1802/3. Phloiotribus, p. 204, in Histoire naturelle. generale et par- ticuliere des crustaces et des insectes. vol. 3. 467 p. Mannerheim, C. G. 1843. Xylophagi. p. 296-298, in Beitrag zur Kaferfauna der Aleutischen Inseln, der Inscl Sitka und Neu-Californiens. Bull. Soc. Imp. Nat. Mo-scou 16 (2): 175-31 4. . 1852. (Species nos. 143-153, in) Zweiter Nachtrag zur Kaefer-Fauna The Great Basin Naturalist 128 STEPHEN L. WOOD Vol. XXIX, No. 3 der nord-amerikanischen Laender des loissischen Reiches. Bull. Soc. Imp. Nat. Moscou 25(1) :283-387. 1853. Bostrichina, p. 234-239, in Dritter Nachtrag zur Kaferfauna der Nord-Amerikanischen Lander des Russichen Reiches. Bull. Soc. Imp. Nat. Moscou 26:95-273. MoTSCHULSKY, V. VON. 1858. Genyocerus albipennis, p. 68, in Entomologie speciale. Insectes des Indes orientales. Etud. Ent. 7:20-122. . 1859. {Genyocerus adustipennis) . Etud. Ent. 9:19 (From Blandford. 1894:141). . 1863. (Platypodidae and Scolytidae, p. 509-517, in) Essai d'un cata- logue des insectes de I'lle Cevlan. Bull. Soc. Imp. Nat. Moscou 36(1): 421-532. 1866. (Scolytidae). Bull. Soc. Imp. Nat. Moscou 39(1) :401-404. ScHEDL, K. E. 1959. A check list of the Scolytidae and Platypodidae (Q)leop- tera) of Cevlon with descriptions of new species and biological notes. Trans. Roy. Ent. Soc. London 1 1 1 (15) :469-534. WoLLASTON, T. V. 1854. Fam. 32. Toniicidae, p. 288-306, in Insecta Maderen- sia; being an account of the insects of the islands of the Medeiran group. 634 p. . 1864. Fam. 43. Toniicidae, p. 254-267, in Catalogue of the coleopterous insects of the Canaries in the collections of the British Museum. 648 p. Wood, S. L. 1963. A revision of the bark beetle genus Dentroctonus Erichson (Coleoptera: Scolytidae). Gt. Basin Nat. 23:1-117. . 1969. New records and species of Neotropical bark beetles (Scolytidae: Coleoptera). Brigham Young Univ. Sci. Bull., Biol. Ser. 10(2): 1-46. ZOOGEOGRAPIIIC AND SYSTEMATIC NOTES ON THE LACE BUG TRIBE LITADEINI. WITH THE DESCRIPTION OF TI IE NEW GENUS STRAGULOTINdlS (IIEMIPTERA: TINGIDAE) Richard C. Froeschner^ The tribe Litadeini was proposed for the genus Litadea by Drake and Ruhoff (1965a. p. 18) and defined by the unusual modification of the second tarsal segment: "Enormously swollen, nearly ovate in outline, upper surface convex, beneath deeply concave, the con- cavity filled with short, bristlelike hairs." Subsequently these two authors (1965b, p. 247) transferred Holophygdon Kirkaldy (1908, p. 364) from Fingini to Litadeini and described another genus, Aeopelys^ as a member of Litadeini. During preparation of a key to the genera of Tingidae of the world, it was found that on the basis of the modified second tarsal segment five more genera must be transferred from the tribe Tingini to the Litadeini (new assignments here) : Aristobyrsa Drake and Poor (1937, p. 164), Larotingis Drake (1960, p. 357). Oecharis Drake and Ruhoff (1965b. p. 280). Ogygotingis Drake (1948, p.l49), and Psilobyrsa Drake and Hambleton (1935, p. 148). In addition, two species cataloged in the Tingini genus Pleseobyrsa Drake and Poor have the modified tarsi of the Litadeini but do not fit well into any of the other genera and so must have a new genus erected for them. The tribe Litaeini originally containing but one genus and species from the Indian Ocean island of Rodriguez, now includes thirteen species in nine genera and is almost Pan-Tropical in distribution. It is known from Africa and South America, and from the islands in the Indian (Rodreguez I.) and Pacific (Fiji and New Guinea) Oceans. In view of the several genera added to the tribe Litadeini, the significant modifications of the second tarsal segment might profit- ably be reviewed and slightly modified. The segment is very strongly dilated at the base so that it is abruptly much wider than the first segment. The ventral surface is flat or concave (apparently arching inward during drying) and densely hairy with the hairs toward the sides of the segment much lengthened. The shape is not always broadly oval; in Oecharis it is elongate oval, tapering from the wide base to the slender claw-bearing ajiex. The functional significance of these modifications has not been investigated by observation of the living insect in the field. ^Sniitlisonian Institution, AVashington, D. C. 129 130 RICHARD C. FROESCHNER The Great Basin Naturalist Vol. XXIX, No. 3 Stragulotingis, n. gen. Fig. 1 Diagnosis: Within the tribe Litadeini, Stragulotingis is recogniz- able by the broad, flat, horizontal paranota associated with the flat discoidal areas. Characters: Length 3.0-3.7 nun.; macropterus. Head short, vertically deflexed, wdth 5 long, cephalic spines (occipital and supraclypeal pairs plus a median one above base of EHF Fig. 1 Stragulotingis plicata (Champion) Se|)t. 30. 1969 new genus stragulotingis 131 latter) ; eye about one-third as wide as Liiterot ular space; bucculae short, not reaching apex of clypeus; labium extending onto apical half of niesosternuni; antennae slender, cylindrical, all segments with long, slender bristles, segment I nearly or quite as long as inter- ocular width, about three times as long as II, III slightly longer than I plus II. about one and a half times as long as IV. Pronotum without inflated cysts; anterior margin convexly pro- jecting almost to apex of head; median carina low, with a single row of small cells; lateral carinae reaching to calli. weak, lower than median carina, with cells obscure or absent; paranotum anterolater- ally expanded obliquely, attaining a line across apex of head, lateral margins concavely converging posteriorly, terminating just posterior to humeral angles, anteriorly with long marginal bristles; posterior })ronotal projection acute with apex narrowly rounded, extending to basal third of discoidal area. Elytra conjointly nearly flat, multiseriate subcostal area oblique; outer margins, except basal half of sutural margin, with a row of numerous close-set, long tapering bristles; discoidal area reaching al- most to midlength of elytron; costal margins strongly convex basally. extending distinctly cephalad of elytral articulation, thence straight and nearly parallel; costal area broad, horizontal, with 5-7 irregular rows of cells at widest point, surface transversely weakly depressed at basal fourth and midlength; sutural areas narrowly overlapping, leaving rounded apices widely separated; hypocostal lamina uniser- iate, more or less remote from sides of abdomen. Peritreme absent. Metapleural flange reduced, not expanded. Sternal laminae widely separated, strongly diverging on mesoster- num, more widely separated and strongly outbowed on metasternum where their posterior apices are connected by a weak transverse car- ina. Abdomen convex basoventrally. Type of genus: Pleseobyrsa plicata Champion, here designated. Geographical distribution: The genus occurs in Tropical America from Costa Rica south to Brazil. Comments: This genus admittedly is quite close to Aristobyrsa on a number of significant features, such as the long hairs of the anten- nae; the basal part of the costal area projecting convexly cephaled of the elytral articulation; the wdde, anteriorly projecting paranotum; and the broad, coarsely lacey, diverging elytra. But two elytral feat- ures separate them. Aristobyrsa has the discoidal area very strongly, tumidly elevated and tilted outward to overhang the subcostal area, while Stragulotingis has the discoidal area low and flat. In addition, Aristobyrsa has the subcostal area vertical, much narrowed, sub- coriaceous, with the veins much thickened and the included two rows of cells punctiform, while the subcosta on the two species of Strag- ulotingis is four to six cells wide with the veins and cells developed similarly to those of the discoidal area. The j)refix of the new name is from the Latin "stragulus'' im- plying a spreading out and refers to the wide paranota and costal areas which expand anteriorly as well as laterally. The Great Basin Naturalist 132 RICHARD C. FROESCHNER Vol. XXIX. No. 3 The two species included here were listed under the genus Plese- obrysa in the Drake and Ruhoff (1965a) catalog. List of species of Stragulotingis atratarsis (Drake and Hambleton), n. comb. Pleseobyrsa atratarsis Drake and Hambleton 1946b, p. 124. Peru plicata (Champion), n. comb. Leptobyrsa plicata Champion 1897, p. 26. Panama. Pleseobyrsa parana Drake and Hambleton 1944a, p. 95 [synony- my Drake and Ruhoff 1965a, p. 343]. Brazil. Key to species of Stragulotingis A. Tarsi black; size larger, length 3.6-3.7 mm. atratarsis (Drake and Hambleton) . Tarsi yellow to tan; size smaller, length 3.0-3.2 mm. plicata (Champion) References Champion. G. C. 1897. Rhynchota. In Godman and Salvin, Biologia Centrali- Americana, vol. 2, pp. 1-32. Drake, C. J. 1948. New genera and species of Tingidae (Hemiptera). Proc. Biol. Soc. Washington, vol. 61, pp. 149-156. . 1960. Tingidae of New Guinea (Hemiptera). Pacific Insects, vol. 2, pp. 339-380. , AND Hambleton, E. J. 1935. New Brazilian Tingidae (Hemiptera). Part I. Revista Ent., Rio de Janeiro, vol. 4, pp. 435-451. . 1944. Four new American Tingitidae (Hemiptera). Proc. Ent. Soc. Washington, vol. 46, pp. 94-96. . 1946. Three new species and a new genus of American Tingidae (Hemiptera). Ent. News, vol. 57, pp. 121-125. , AND Poor, M. E. 1937.Concerning the genus Leptobyrsa Stal (Hemip- tera). Proc. Biol. Soc. Washington, vol. 50, pp. 163-166. , AND Ruhoff, F. A. 1965a. Lacebugs of the world, a catalog (Hemip- tera: Tingidae). U. S. Nat. Mus. Bull. 243, pp. i-viii, 1-634, pis. 1-56. 1965b. Lacebugs from New Guinea, Borneo, Solomon, and other is- lands of the South Pacific and Indian Ocean (Hemiptera: Tingidae). Pacific Insects, vol. 7, pp. 243-290. KiRKALDY, G. W. 1908. A catalogue of the Hemiptera of Fiji. Proc. Linnaean Soc. New South Wales, vol. 33, pp. 345-391. A NEW SPECIES OF OPPIA FROM COLORADO (CRYPTOSTKiMATA; OPPIIDAE) Tyler A. Woolleyi A Student brought in a soil and humus sanij)le from a (commer- cial?) earthworm bed that was teeming with enchytraeids and uropo- dine mites. Associated with these organisms but not in such large numbers, was a species of one of the larger Oppia. Specimens of this species were compared with various species of this genus in the author's collections and with species described in the literature, par- ticularly the species of the Oppia complex delineated by Hammer (1968). As a result of these comparisons, the species was determined to be a new representative of Oppiidae and is described below. Oppia color adensis, sp. n. (Figs. 1-4) Diagnosis. The new species resembles Oppia trichosa Hammer, 1958. and O. notata Hammer, 1958, as well as O. yodai Aoki, 1965, but the sensillus in each of these last three species is pointed and lanceolate rather than the blunt and slightly clavate type found in O. coloradensis, sp. n. Aoki's species also has five genital setae com- pared to four in O. coloradensis. The sensillus of the new sjiecies resembles the type found in Amerioppia, but the latter genus lacks interlamellar hairs, which are present in the new species. The ros- trum of O. notata is pointed and has a transverse band with a small tooth; O. trichosa shows a rounded rostrum, as does O. coloradensis. In both O. notata and O. trichosa the interlamellar hairs are lacking, while in O. coloradensis these hairs are prominent. The new species also has similarity to O. simplex, Balogh, 1962, but the notogastral hairs of the latter species are much longer and more robust than in O. coloradensis; the notogastral hairs of O. yodai Aoki, 1965, are about the same relative length as in the new species. Compared to O. covarrubiasi Hammer, 1968. from New Zealand, the new species has only four pairs of genital hairs (rather than six), the interlamellar hairs, exobothridial hairs and notogastral hairs of the new species are much longer. The new species apparently lacks notogastral setae ta in all of the specimens examined. Description. Golden-brown in color, with darker, reddish- brown margins; integument finely granlated on both prodorsum and notogaster; prodorsum triangular in outline, rostrum rounded, rostral hairs four-fifths as long as lamellar hairs, finely barbed; lamellae or lamellar ridges absent, lamellar hairs a fifth again as long as rostral hairs, finely barbed, decurved; dorsum between pedo- 'Department of Zoology, Colorado State University, Fort Colluis. 133 134 TYLER A. WOOLLEY The Great Basin Naturalist Vol. XXIX. No. 3 Fig. 1. Oppia color adensis from the dorsal aspect, legs omitted; A. enlarged view of sensillus. Fig. 2. O. coloradensis from the ventral aspect, legs partially shown. Fig. 3. Prodorsum and part of nonogaster of O. coloradensis from the lateral aspect, showing tubercles associated with bases of legs I-III and pedotecta I. Fig. 4. Tibia and tarsus I of O. coloradensis. tecta I with sculptured depressions or circles, interlamellar hairs shorter than rostrals. more robust, barbed; exobothridial hairs about as long as rostrals, but more definitely barbed; pseudostigmata small, circular; sensillus clavate, with fine spines or barbs (terminal barbs make the tip appear lanceolate, but the outline is clavate), curved outward, upward (position varies in mounted specimens), surface of head and two-thirds of pedicel barbed (Fig. lA); prodorsal surface laterad of pseudostigmata finely tuberculated from pedotecta I to posterior margin, small, rounded tubercles extending into concavity of pedotecta I (Figs. 1,3). Outline of notogaster nearly round, slightly narrowed posteriorly, nine pairs of notogastral hairs present (setae ta appear to be missing Sept. 30. 1969 new species of oppia 135 in all specimens observed), main dorsal setae robust, curved, barbed, slightly longer than lamellar hairs; setae and fissures /«, im as in Fig. 1, fissure im equidistant between the setae ti and ms. Camerostome oval, ventral apodemata. and setae as seen in Fig. 2; apodemata IV arched from behind insertion of legs IV to join the coxisternal apodeme anterior to genital aperture; genital aperture about Yi as large as anal, genital covers nearly rectangular, each with four setae, g:l-3 in nearly straight line nearer medial margin than lateral, g:4 in posterolateral corner of cover; aggenital setae, f issue iad and adanal setae as in Fig. 2; anal opening rounded, anal covers each with two setae. Legs monodactylous Measurements. Length 468 /«,, prodorsum 162 /x. hysterosoma 324 ti; width 282 /t. The type (a male), 10 male para types and 10 female paratypes were collected from a dirt sample with enchytraeids and uropodines, Fort Collins. Larimer County, Colorado. 1 December 1954. by T. A. Woolley; two additional females were taken from Mount Meeker Camp Ground, Boulder County, Colorado, 17 July 1952, by T. A. Woolley. The type will be deposited in the U. S. National Museum. DicussiON. Hammer (1968) admits the difficulty of differen- tiating species of the "Oppia" complex, but she (1961, 1962. and 1968) evaluated and arranged species of this complex into a number of genera in a way that should be helpful; at least it is a start toward clarification of the complex. Admittedly, as Hammer indicates, Oppia continues to be an extraordinarily complicated genus or cryp- tically a series of genera, and the use of the genus Oppia {sensu stricto Koch) for species that do not fit in allied genera is resorted to. not as finally correct, but because the placement of such species in this genus is as close as one can come within the present taxonomic status of this group. Hammer (1968) also delineates and provides a key for the genera of the Oppia complex in both South America and New Zealand. The North American representatives of this complex are little known in comparison. Higgins and Woolley (1965) described Spinoppia magniserrata as a new genus and species of this complex. Woolley (1957) also redescribed Oppia minuta (Ewing) from this group. Other representatives are known from North America, but no at- tempt has yet been made to assess the numbers of species and evalu- ate their placement in the current scheme of genera. The minute size of the representatives and the immense variety of forms are deterrants to a revision of this complex, even though such a revision and evaluation is sorely needed. Literature Cited Balogh. J. 1962. Recherche sur la Faune Endogee de Madagascar VII Naturaliste malgache 13:121-151. AoKi, JuN-icHi. 1965. Oribatidens Thailands I. Nature and Life in Southeast Asia IV: 129-193. The Great Basin Naturalist 136 TYLER A. WOOLLEY Vol- XXIX, No. 3 Hammer, M. 1958. Investigations of the Oribatid Fauna of the Andes Moun- tains I. The Argentine and Bolivia. Biologiske Skrifter Det Kongelige Danske Videnskabemes Selskab 1 0 ( 1 ) : 1 - 1 29. . 1961. Investigations on the Oribatid Fauna of the Andes Mountains II. Peru. Biol. Skr. Dan. Vid. Selsk 10(1): 1-157. . 1962. Investigations on the Oribatid Fauna of the Andes Mountains III Chile. Biol. Skr. Dan. Vid. Selsk. 13 (2): 1-96. 1968. Investigations on the Oiibatid Fauna of New Zealand part III. Biol. Skrifter det Kongelige Danske Videnskabemes Selskab. 16(2): 1-96. HiGGiNs, H. G., AND T. A. WooLLEY. 1965. An Unusual New Genus of Mites from Florida. Florida Entomologist 49(l):67-70. WooLLEY, T. A. 1957. Redescriptions of Ewing's Oribatid Mites, V. — Families Belbidae and Oppiidae. Entomological News 58(8) :21 1-221. A NEW (tENUS and SPECIES OF ORIBATID MITE (ACARI: LIACAHOIDEA. MEnUOPPIIDAE;' Tylor A. Woolley- About two years ago Dr. Henry Dybas very kindly sent me a number of collection of mites for sorting. Among the many oribatid specimens was one that slightly resembled Pyroppia lanceolata Hammer, 1955. but was larger (930 /i x 750 /-. vs. 620-670 /,. .\ 400 ix), and with different sensilli and lamellae. After comparing this mite with other known genera. I considered it to be a new genus and a new species in the family Metrioppiidae. It is described below. Metapyroppia, n. gen. Diagnosis. With s])indleform sensillus. short lamellar cusps, an incomplete translamella; Pyroppia lacks a translamella and the sensillus is clavate-lanceolate. The large, straight, trochanteral setae of Ceratoppia and Pyroppia are apparently lacking in this new genus. The new genus differs from Paenoppia Woolley and Iliggins. 1965. in the shorter lamellar cusps, the incomplete translamella and the spindleform sensillus; superficially, it resembles, yet differs from the oribatuloid Conoppia in the sensillus, the prodorsal hairs and six pairs of genital setae. Type-species, Metapyroppia doratosa Woolley, monobasic. Metapyroppia doratosa n. sp. (Figs. 1, 2) Diagnosis. The new species differs from Pyroppia lanceolata Hammer, 1955, in the barbed, spindleform sensillus, contrasting with the clavate-lanceolate sensillus of P. lanceolata; it differs also in the presence of transverse, prodorsal carina, in size and in the lack of trochanteral setae. The prefix meta implies "near" Pyroppia. and doratoSy a spear-like sensillus. Description. Color dark reddish-brown, prodorsum broadly triangular in outline; rostrum smooth, rostral hairs barbed, incurved, about as long as lamellar hairs, inserted in slight notches at antero- lateral margins of prodorsum (Fig. 1); a slight transverse carina anterior of lamellar cus})s across surface of prodorsum; lamellae narrow, extending from dorsosejugal suture to bases of rostral hairs, attenuated anteriorly, lamellar cusps short, truncate, about as long as each end of interrupted translamella; lamellar hairs stout, barbed, nearly straight, about the same length as rostral hairs; translamella interrupted medially, short medial bar each side about as long as length of lamellar cusp; interlamellar hairs barbed, slightly longer 'Research supported by NSF Grant GB iSTl. -Department of Zoology, Colorado State University. Fort Collins. 137 138 TYLER A. WOOLLEY The Great Basin Naturalist Vol. XXIX, No. 3 Fig. 1. Dorsum of Metapyroppia doratosa, legs omitted; hysterosoma broken in type specimen. Fig. 2. Venter of M. doratosa, legs omitted. than lamellar hairs, inserted mediad of bases of lamellae; pseudo- stigmata posterior to pedotecta I. slightly beneath hysterosomal margin; sensillus spindleform, barbed; pedotecta I stout, angled inward at anterior margin, forming lateral angles of broad triangular prodorsum. Hysterosoma glabrous, nearly round in outline (slightly broken across dorsum of type specimen), with two humeral bristles posterior to pseudostigmata at shoulders of hysterosoma. Other setae and fis- sures as seen in Fig. 1. Camerostome broadly oval, infracapitulum, ventral setae with prominent alveoli, and apodemata as seen in Fig. 2; trochanteral fossae II with slight tubercules on surface (like some other Lia- caroidea); genital aperture nearly square, between insertions of legs IV, each genital cover with six setae. g:l-g:4 in nearly straight line near medial margin of cover, g:5 laterally displaced in pos- terior half of cover, g:6 near posterior margin, but not as close to medial margin as g:l-g:4; aggenital setae laterally placed at level of posterior margin of genital opening; anal aperture pentagonal, only slightly larger than genital aperture, each anal cover with two setae, a:l in anterior half of cover, both anal setae about in middle of width of cover; preanal piece large, trumpet-shaped; iad fissure very narrow, almost indistinct, closely appressed to rim of anal aperture anterior to level of a:l; three pairs of adanal setae. ada:3 between levels of a: 1 and a: 2 but closer to a: 1 and remote from anal openings by widest width of cover; ada:2, ada:l posterior to anal Oldening. Sept. 30. 1969 new genus and species of mite 139 Legs heterotridactylous; middle (empodial) claw only slightl}- larger than lateral (true) claws: stiff, straight seta of trochanter 11 (as found in Cerotoppia and Pyroppia) lacking. Measurements. (As taken in broken type specimen) Length: 930 /t, prodorsum 180 /t. hysterosoma 750/i; width 726 /i. Distribution. One female and type specimen was collected from moss on log on Mt. Le Conte, Sevier County, Tennessee, August 1956, by H. Dybas. The type will be deposited in the U. S. National Museum. Discussion. This new genus and species represents yet another example of oribatid mites in the family Metrioppiidae. The char- acteristics of the sensilli. number of genital setae, tuberculous tro- chanteral fossae II are characteristics that ally these mites with the Liacaridae and Xenillidae in the Liacaroidea. It appears from re- search completed previously and some currently in progress that these families exhibit many characteristics in common. Delinea- tions of the details of these comparative features and specifically demonstrable relationships await the results of further studies now in progress. Literature Cited Hammer, M. 1955. Alaskan Oribatids. Acta Arctica VII: 1-36. WooLLEY, T. A.. AND H. G. HiGGiNs. 1965. A New Genus and Species of Oribatid Mite from Colorado (Acari: Oribatei, Ceratoppiidae) . Great Basin Naturalist 25(3-4) :59-62. A NEW SPECIES OF LIACARUS FROM A WOOD RAT NEST (ACARINA: CRYPTOSriGMATA, LIACARIDAE) Harold G. Higgins^ and Tyler A. WooUey- A number of different groups of mites are represented in the fauna found in rodent nests. Many of the mites are predaceous forms and the biotic relationships have not been explained fully. Others are parasitic forms that may have temporarily moved off their hosts (Daniel, 1969). Free-living oribatid mites are sometimes found in nests (Woolley and Higgins, 1968), but have been reported infrequently up to now. It is possible that these oribatids are natural inhabitants of the soil adjacent to the nests of the rodents and have migrated in, but they could also have been picked up from the soil and carried from nest to nest in the fur of the animals. In the spring of 1969 a collection of mites taken from the sleeping nest of the Wood Rat {Neotoma fuscipes) was received from Mr. Tom Ashley of El Cajon, California. Among these was an unde- scribed species in the genus Liacarus as designated and summarized in the article of Woolley (1968). The new species has the barbed and spindleform sensillus typical of the genus, but specific differ- ences separate it from known species. Liacarus lectronus, sp. n. (Figs. 1-3) Diagnosis. The new species is most similar to Liacarus robustus Ewing, 1918, but is smaller in size and has a much smaller mucro. wider lamellae, pointed lamellar cusps and much longer interlamel lar hairs. The trivial name comes from the Greek lektron implying "bed" and refers to the sleeping nest of the rodent from which it was taken. Description. Color dark reddish-brown; prodorsum triangular, about a sixth as long as notogaster; rostrum notched, tip rounded; rostral hairs two-thirds as long as lamellar hairs, finely barbed, in- serted in raised forward ridge of tutoria; lamellae broad, narrowed anteriorly, with bidentate cusps, medial dens twice as large as lateral dens; lamellar hairs about half as long as interlamellar hairs, insert- ed in dorsal surface of lamellae just behind anterior notch of lamellar cusp, finely barbed (Fig. 2); translamella with a prominent mucro extending from base of lamellae to level of insertions of lamellar hairs; interlamellar hairs twice as long as lamellar hairs, extended forward from insertions to level of tips of rostral hairs, finely barbed, inserted in medial margins of lamellae near dorsosejugal suture; pseudostigmata covered by clear, narrow shoulder patches of noto- 'Granger High School. Salt Lake City, Utah. -Department of Zoology. Colorado State University. Fort OUins; research supported in part hy NIH-NIAID rO TOI-AIO0694-IO. 140 Sept. 30. 1969 NEW SPECIES OF LIACARUS 141 Fig. 1. Liacarus lectronus, from the dorsal aspect, legs omitted. Fig. 2. L. lectronus, enlarged view of lamellae, mucro and lamellar hairs. F'ig. 3. L. lectronus, from the ventral aspect; legs partially omitted, but show- ing keeled femora I, II, III. gaster, spiraled beneath surface; sensillus spindleform, finely barbed; pedotecta I with rounded tip. Notogaster oval in outline; narrowed, clear shoulder patches ex- tended over sensillus, with two fine, humeral bristles; ten pairs of fine notogastral setae visible in specimens (Fig. 1 ). Camerostome oval, infarcapitulum diarthric; rutella, mentum, ventral setae and apodemata as in Fig. 3; genital opening smaller than anal; each genital cover with six setae. g:5 inserted more lat- erally than other setae on cover; aggenital setae widely separated, insertions closer to genital opening than to anal; anal opening nearly square, each anal cover with two setae inserted nearer medial margin than lateral; fissure iad and adanal setae as in Figure 3. ada:3 more remote from opening than ada:2 or ada: 1. Legs heterotridactylous; femora I. II. Ill each with fine pointed keel. Measurements. The type female measures 702 /i x 438 ^w. Collection Data. Three specimens, two females and a male, were collected from the sleeping nest of Neotoma juscipes, 20 March 1968, at Cuyanaca Reservoir. San Diego Co., California, by Tom Ashley. The type will be deposited in the U. S. National Museum. The paratypes will be retained by the authors. Discussion. In the same collection with L. lectronus, sp. n. from the Neotoma nest was another species that has been recorded from Europe previously, but not from the United States. The Great Basin Naturalist 142 H. G. HIGGINS AND T. A. WOOLLEY Vol. XXIX, No. 3 This unusual find consisted of four specimens of Cosmochthonius reticulatus Grandjean, 1947. Although several species of Cosmoch- thonius are reported from Europe, South America, and New Zealand, to our knowledge this is the first time that this European form has been reported from the United States. Preliminary studies indicate that studies of rodent nests in the future may disclose a source of desert forms of oribatids that is cur- rently untapped. Literature Cited Daniel, M. 1969. Nests of small terricolous mammals as the environment of nidicolous paiasites. Folia Parasitologica (Praha) 16:137-142. EwiNG, H. E. 1918. The Beetly Mite Fauna of Mary's Peak, Coast Range, Oregon. Entomol. News 29(3) :81-90. WooLLEY, T. A. 1968. North American Liacaridae. W-Liacarus. J. Kansas Entomol. Soc. 41 (3) : 350-366. W00L1.EY, T. A.' AND H. G. HiGGiNs. 1968. A new genus and species of oribatid from pack rat nests. Great Basin Nat. 28(3) : 144-146. INVASION OF A "TRAPPRD-OU 1" SOUTI lERN NEVADA HABITAT BY PER0(;NATIIUS LONGIMEMRIUS Lester D. Flake' and Clive D. Jorgensen- Abstracts a 6.3 ha grid was established at the United States Atomic Energy Commission's Nevada Test Site and the small mammals trapped-out during the summers of 1964 and 1965 to study invasion by Perognathus longimembris Coues. Age analyses were made to detemiine the relationship between age and invasion. The mean age of invading animals was lowest in mid- and late summer, but varied widely with reproductive success. There was no statistically significant difference in mean age between male and female invaders. Ratios of male to female invaders varied directly with that of the natural population. Invasion rates varied widely and were mainly influenced by population density outside the grid. Introduction Small mammal invasion studies of "trapped-out" habitats are not numerous; but rates of invasion, home site origin, relationship of invasion behavior to population density, juvenile or adult classifica- tion of invaders, and sex ratios of invaders have been examined for several species by Andrzejewski (1963), Andrzejewski and Wroclo- wek (1962), Blair (1940), Calhoun and Webb (1953), Stickel (1946) and Webb (1965). These studies were made in non-arid environ- ments and did not include any of the heteromyid rodents. In this study a "trapped-out" habitat was created and Perog- nathus longimembris Coues movement into the grid (invasion) ex- amined. Special attention was given to age composition of invading P. longimembris. The possibility that male and female invaders come from different age groups was examined along with sex ratios and rates of invasion. These analyses provide the basis for determining how the population characteristics of P. longimembris affect its in- vasion behavior. Materials and Methods The study was conducted at the United States Atomic Energy Commission's Nevada lest Site, 70 miles northwest of Las Vegas, Nevada. The study area was in relatively undisturbed Grayia-Lycium community (Allred, Beck and Jorgensen, 1963) in the northeast por- tion of Yucca Flat. A 6.3 ha grid was established with 12 parallel transects placed at 22.9 m intervals. Each transect contained 12 trapping stations 22.9 m apart. Two Young-type live traps were placed at each of the 144 trapping stations. Small mammals were trapj)ed and removed daily from June 7 through Aug. 25, 1964, and from June 9 through Sept. 7. 1965. Small mammals were removed and traps baited with small amounts of 'Natural Resource Ecology I.al)oratory, Colorado State University, Fort Collins, Colorado. -Departiiipnt of Zoology and Entomology, Brighani Young University, Provo, Utah. 143 The Great Basin Naturalist 144 L. D. FLAKE AND C. D. JORGENSEN Vol. XXIX, No. 3 rolle doats prior to 9:00 a.m. each day. Animals were killed and taken to the laboratory where age and sex were determined. During Aug. 1965, three 460 m transects, 100 m apart, were es- tablished three miles southwest of the grid to sample the untrapped population for mean age. Fifty equally spaced Museum Special traps were placed on each transect and operated for seven nights between Aug. 15 and Sept. 7. All P. longimembris were taken to the laboratory for age and sex determinations. The tooth wear technique developed for Perognathus by Howard Kaaz (University of California, Los Angeles, California, unpub- lished data) was used for age determination. A key for this technique and accompanying illustrations are included in Flake (1966). Results The number of P. longimembris trapped daily leveled off by the sixth day after trapping began in 1964 and those trapped after that were considered to be invaders. Numbers of P. longimembris trapped per day for the first 10 days of trapping in 1964 were respectively: 39, 15, 32, 15, 22. 16, 4, 7, 4 and 2. In support of the above observa- tion it was found that after the fifth day of trapping, almost all cap- tures were within 68.7 m of the borders. Similar results were obtained during the first six trapping days of 1965. Mean ages of P. longimembris for the trapping-out periods and subsequent invasion periods are presented in Table I. Table II gives the mean age by sex and period of capture. Hereafter, the June 7- 11. June 13-30, July 1-31 and Aug. 1-25, 1964, periods; and the June 9-13, June 15-30, July 1-31 and Aug. 15 - Sept. 7, 1965, periods are referred to as the 1st. 2nd. 3rd and 4th periods for the respective years. June 7-11, 1964, and June 9-13, 1965, are actually trapping- out periods while all other trapping intervals represent, by definition, invasion periods. An analysis of variance of the age data, using the fixed effects model (model I), disclosed statistically significant differences (P - .05) in the main effect means for the years x periods interaction. The years x sex. periods x sex, and years x periods x sex interactions were not significant. Mean age comparisons within the years x per- iods interaction were accomplished with Cramer's modification of Duncan's multiple range test (Cramer, 1956). Use of the expression "significant difference" throughout the papers refers to a statistically significant difference at the 5 percent level. Comparison of mean ages for 1964 and 1965 trapping periods (Table I) yielded the following results. In 1964 and 1965 there was no significant difference between means for the 1st and 2nd periods within either year. For both years there was a significant difference between the mean for the 1st period and the means for the 3rd and 4th periods. Similarly, there was a significant difference between the mean for the 2nd period and the means for the 3rd and 4th periods in both years. No significant difference was observed between the means for 3rd and 4th periods within years. There was no significant Sept. 30. 1969 perognathus longimembris 145 difference in 1st and 2nd period means between years, but there was a significant difference in means for the 3rd and 4th periods between years. In siunniary, the mean age of invaders decreased from early to late sunnner in both 1964 and 1965 though the decrease was much greater in 1965. As noted previously, P. longimembris were trapped from an un- tra])ped population three miles southwest of the grid between Aug. 15 and Sept. 7, 1965. The mean age (n = 88, x = 4.6 months, s = 7.9 months was not significantly different from that of period 4, 1965. grid invaders (Table I). The ratios of males to females for the trapping periods are given in Table I. In 1964, there were 1.3 males per female captured during period 1 (trapping-out period). Since reproduction was negligible in 1964 (French. Maza and Aschwanden. 1967), the sample ratio for the 1st period may be used to estimate the sex ratio in the untrapped population outside the grid. Among total invaders for 1964, 1.5 males invaded per female. A chi-square test disclosed no significant dif- ference in proportion of males to females between the period 1 estimate of the untrapped population and total invaders (X- (1 df, .05) — .08. In 1965 among total invaders 0.8 males in- vader per female. When the proportion of males among total invaders was compared with that for P. longimembris trapped three miles southwest of the grid from Aug. 15 to Sept. 7 (n = 88, 42 males, 46 females), no significant difference was found X- '1 - C- T-H .rH -^ CO 05 05 ro tj- m . ^ cq o tj- CO vn oq d CO ^ oq cs) ■<-( ^ 00 ■rH 00 ^ CO CO 00 Tj- T^ CO '^ CO CO o> CO vn CO co" of vn CO 05 1—1 ,__, ^ s 03 r^ > Sept. 30. 1969 PEROGNATHUS LONGIMEMBRIS 147 n3 o :3 o be a> .=8 S^ ^.1 bi) >^ ^^ ^1 :-§ 3 11, vd O vTi +1 +1 o:i +1 CO (O '-^ +1 00 ^ m CSl t^ o fo^ d oq O -^-B CSI -rH ^ >.-c II CO '73 t^ ^_^ d CO d vn -■-c CO T-. O 05 CO T-H 0^ +1 Si +1 CO i fa CO -a -1 3P-1 3CL, '■O CO vd 00 ^ P 00 ._^ -^ c:i CO +1^ CO CO oi ^ +1 CO 00 -TH tH hs. «^ ^ ^ + 00 ^' CO CO oi i:: " CO ^ "^ ,— - 9 ^. -- CO Tf vn + CO CO CO -^ +1^ 00 oq +1 O 00 ^.^ '-i ^ c^i CO T-H -^-^ + 1 ■^ tJ- -— - ^ r< CO +1 CO i I 3 The Great Basin Naturalist 148 L. D. FLAKE AND C. D. JORGENSEN Vol. XXIX. No. 3 reproduction in the summers of 1963 and 1964. When conditions im- proved for plant growth in the winter and spring of 1964-65, they noted rapid population growth the following summer. During this period they found several individual P. longimembris living from 2 to 5 years in the field. Jorgensen (Brigham Young University. Provo, Utah, personal communication) also noted that several P. longimem- bris survived at least 3 years in the field at the Nevada Test Site. The relatively high mean age of animals trapped in 1964 and June of 1965 probably reflects extremely poor reproduction in the summers of 1963 and 1964. Thus, a mean age of 22 months (June of both years) is not unreasonable considering the extremely limited addition of young to the population during and prior to trapping. The difference in mean age of 3rd and 4th period invaders between years is likely a reflection of poor reproduction in 1964 versus increased re- production in 1965. The decrease in mean age through both summers correlates well wdth appearance of young in the population and re- production success. There was no significant difference in the mean age of male and female P. longimembris invaders (Table II) and no significant inter- action involving sex; therefore, the sexes were treated as a single group in age analysis. As there was no significaant difference between age of animals in the un trapped population (3 miles southwest of the grid) and 4th period invaders for 1965, it could not be concluded that young an- imals have a greater tendency to invade than adults. The mean age of the untrapped population was extremely small x = 4.6 months, s = 7.9 months), probably because of high reproductive success. Hence, a preferential invasion by young P. longimembris probably would not have been detectable. Stickle (1946) observed that adult Peromyscus leucopus invading a "trapped-out" grid consisted of 2 males per female while the nat- ural population in the immediate area contained approximately equal numbers of males and females. In the present study of P. longimem- bris, males invading the study grid outnumbered females in 1964 and similar ratios were obtained within the grid's original population (trapping out period) which was used to estimate the ratio in the un- trapped population. Contrary to the 1964 results, females invaded more frequently than males in 1965. In 1965, the sex ratio of P. longimembris from the untrapped population 3 miles southwest of the grid was compared with that in the study grid and ratios of males to females for both samples were almost identical. These results in- dicate the sex ratios of invading P. longimembris are approximately the same as those in the natural population. The rates of invasion are likely influenced by several population characters. Stickle (1946) noted that Peromyscus with home ranges overlapping the borders of a newly established void were first to in- vade. Andrezejewski and Wroclowek (1962) concluded that the rates of invasion of Apodemiis and Clethrionomys were determined by the density of the adjacent population, and further Andrzejewski (1963) Sept. 30. 1969 perognathus longimembris 149 stated that increased rates of invasion and settling during the mid- sunnner were due primarily to emergence of young and subsequent increase of density. In this study, the highest invasion rate in 1964 occurred from June 13 to 30 and was possibly the result of the rapid removal of animals with home ranges overlapping or adjacent to the grid. Since rej)roduction during 1964 was extremely poor, the invasion rate re- mained low through the summer. In 1965 Uie low density in the surrounding population (resulting from the 1964 low reproduction) resulted in low invasion rates in June and July but the rate increased greatly in August and September as the numerous young increased the density of the surrounding population. Acknowledgements This study, No. COO- 1336-2, was supported in y)art by U. S. Atomic Energy grant (AT(11-1)1336 to Brigham Young University, Provo. Utah. The preparation of this manuscript was supported in part by NUT Training Grant No. T01-ES00089 from Division of Envioronmental Health Sciences, Bureau of State Services, U. S. Public Health Service. The age determinations were made possible with the aid of Howard Kaas at the University of California. Los Angeles, who has developed the method of tooth wear age analysis for Perognathus. Dr. Vincent Schultz (Washington State University, Pullman, Washington) assisted in statistical analysis of the data. Allred, D. M., D E. Beck, and C. D. Jorgensen. 1963. Biotic communities of the Nevada Test Site. Brigham Young Univ., Sci. Bull.. Biol. Sen II (2): 1-52. Andrezejewski, R. 1963. Processes of incoming, settlement and disappearance of individuals and variations in the numbers of small rodents. Acta Theri- ologica. 7(11): 169-213. Andrezejewski, R. and H. Wroclowek. 1962. Settling by small rodents a terrain in which catching out had been performed. Acta Theriologica 6(9) : 257-274. Blair, W. F. 1940. A study of prairie deer mouse populations in southern Michigan. Amer. Midi. Nat. 24:273-305. Calhoun, J. B. and W. L. Webb. 1953. Induced emigrations among small manmials. Science 1 17(3040) :358-360. Cramer, C. Y. 1956. E.xtension of multiple range tests to group means with unequal numbers of replications. Biometrics. 12(3) : 307-310. Duke, K. L. 1957. Reproduction in Perognathus. .1. Mammal, 38(1):207-210. Flake, L. D. 1966. Small mammal invasion of a trapped-out habitat. Master's thesis. Brigham Young Univ.. Provo. Utah. 35 pp. (unpublished). French, N. R., B. D. Maza and A. P. Asciiwanden. 1967. Life spans of Dipodomys and Perognathus in the Mojave Desert. J. Mammal. 48(4): 537-548. Hall. E. R. 1946. Mammals of Nevada. University of California Press. Berke- ley. 710 pp. Speth, R. L.. C. L. Pritchett, and C. D. Jorgensen. 1968. Reproductive activity of Perognathus parvus. J. Mammal. 49(2):336-337. Stickel, L. F. 1 946. The source of animals moving into a depopulated area. J. Mammal. 27(4) : 301-307. Webb. W. L. 1965. Small mammal populations on islands. Ecology 46(4): 479-488. LIST OF THE INSECT TYPE SPECIMENS IN THE ENTOMOLOGICAL COLLECTION OF IHE BRIGHAM YOUNG UNIVERSITY, PROVO, UTAH No. III. Vasco M. Tanner' and Don R. Hanis- In 1935 and 1936 Lists of Insect types in the Entomological Col- lection of Brigham Young University were published.' Since then there has been added to the University Entomological Collection the following type sjiecimens in the order Coleoptera. Lists of type mater- ial in other orders will shortly be published. All type specimens are segregated from the main research insect collection. These are avail- able to competent students of the insects. ORDER COLEOPTERA FAMILY CICINDELIDAE Amblycheila utahensis Tanner. Great Basin Nat. XL (1-2): 47, 1951. Type; Diamond Valley, Washington Co., Utah. (Richard Schmutz) Cicindela parowana platti Cazier. Southern Calif. Acad. Sci., Bull. 35:161, 1937. 1 paratype; Bentons Crossing, Mono Co., Calif.; 12 Aug. 1936. FAMILY CARABIDAE Elaphrus torreyensis Tanner. Great Basin Nat. VI. (4): 137, 1941. Paratype; Torrey, Wayne Co., Utah, June 1938, (W. W. Tanner) Brachinus pulchellus Blatch. The Coleop. of Indiana, Bull. 1, Indiana Dept. Geol. & N. R. :161, 1910. 1 paratype; Posey Co., Ind., 4-11-01 (W. S. Blatchley). FAMILY AMPHIZOIDAE Amphizoa carinata Edwards. Wasmann Journ. Biol., 8 (3): 326. 1950. 4 para types; Near Cameron Pass, Gould, Colo; 18-20 Aug. 1941, (Vasco M. Tanner) FAMILY OMOPHRONIDAE Omophron {Honiophron) tanner i Chandler. Great Basin Nat. 2(2): 100, 1941. 'Department of Zoology and Entomologj', Brigham Young University. Provo, Utah. -Graduate student in Entomology, Brigham Young University. ■''Utah Academy of Sciences. Arts, and Letters (Vol. XII), p. 181-19,3; Utah .Academy of Sciences, Arts, and Letters (Vol. XIII). p. 147-152. 150 Sept. 30. 1969 list of insect types 151 Holotype and allotype; Moab, Utah 1927 (Irvin Rasmussen). 36 paraty|)es; Moab. Utah, June 1927. (James Kartchner. Anson Call, Jr.. Vasco M. Tanner, and Irvin Rasmussen). Omophron {Homophron) tanneri proximum Chandler. Great Basin Nat. 2(2): 102. 1941. Holotype and allotype; Escalante River, Garfield Co., Utah, Mouth of Calf Creek, 2 Aug. 1939 (U. P. Chandler). FAMILY DYTISCIDAE Coelambus solinarius Wallis. Can. Ent.. 56:105 1 paratype; Baldur, Man.; 29-VII-22, (J. B. Wallis). Hydroporus transpunctatus Chandler. Great Basin Nat., 2(2): 103-104, 1941. Holotype; Aspen Grove, Utah Co., Utah, 1 Aug. 1938 (H. P. Chandler) . Agabus colrmbus Leech. Can. Ent., 70:125. 1938. 1 paratype; Churchill, Man. VII-7-1937; (W. J. Brown). FAMILY MELYRIDAE Eutrichopleurus concinnus Blais. Tr. Amer. Ent. Soc. 66:321, 1940. 1 paratype; St. George, Washington Co., Utah, V-28-35 (E. C. Van Dyke). FAMILY MELOIDAE Epicauta normalis Werner Psyche, 50:65, 1944. 6 paratypes; Fillmore, Utah (D. E. Johnson); Sheep Creek, Du- chesne Co., Utah; June 1926 (Vasco M. Tanner); Provo En- virons, Utah, (Truman Swallow). Acmaeodera parkeri Cazier. ^^AMILY BUPRESTIDAE Wasmann Coir.. 4:22, 1940. 1 paratype; Globe, Arizona, 7 Sept. 1936 (F. H. Parker). Acmaeodera ligulata Cazier. Wasmann Coir., 4:20, 1940. 1 paratype; Graham Mts., Arizona, 21 June 1935 (D. K. Dun- can). Acmaeodera duboisi Cazier. Bull. So. Cal. Ac. Aci., 37: 138, 1938. 2 paratypes; Death Valley, Furnace Creek, Co., California. 14 April 1938. Santa B. Co.. California, 4 July 1938 (B. E. White) {Prosopis juliflora glandulosa) . The Great Basin Naturalist 152 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 3 Acmaeodera holsteni White. Pan. Pac. Ent. 15:71. 1939. 2 paratypes; Sunset Valley, Santa B. Co., California, 4 July 1938. (B.'E. White), {Adenostoma fasiculatur) . Acmaeodera adenostomae Cazier. Bull. So. Cal. Ac. Sci., 37:127, 1938. 1 para type; Pasadena, California, 22 May 1925. FAMILY TENEBRIONIDAE Eschatomoxys tanneri Sorenson and Stones. Great Basin Nat., 19 (2 and 3) : 63-66, 1959. Holotype, allotype, 8 paratypes. Crossing of the Father, Colorado River, Kane Co.. Utah, 5-8-1959. (E. Sorenson and R. Stones). Craniotus blaisdelli Tanner. Great Basin Nat. 23 (3-4) : 167-170, 1963. Type and 3 paratypes; Inyo Mts., California, 18 April 1949, (Owen Bryant) ; Nevada Test Site, Nye Co., Nevada Araeoschizus airmeti Tanner. Great Basin Nat., 6(1-4) : 125-26, 1945. Ty]3e and 9 paratypes; Nampa, Idaho, April 1944 (LeRoy Jack Airmet) . Eleodes lineata Blaisdell. Trans. Am. Ent. Soc, 64:55, 1939. 2 paratvpes; Chiricahua Mts. Arizona, 5 Aug. 1933, (Owen Bryant)'^Lot #417. 2 paratypes; (Owen Bryant). Lot #33-448, Chiricahua Mts. Ariz., 23 June 1933. Elevation 6,000'. Eleodes omissa pygmaea Blaisdell. United States Nat. Mus. Bull. 63; 77. 1909. 5 plesiotypes; San Diego, California. Eleodes leechi Tanner. Geat Basin Nat, 21 (3): 63. 1961. 7 paratypes; 3-Moab, Utah June 1927 (Anson Call, Jr.; 2-Cor- tez, Colo.: 2 May 1925; 1-Blanding, Utah (W. J. Gertsch) ; 1-La Sal, Utah June 1927, (Irvin Rasmussen). Eleodes inyoensis Tanner. Great Basin Nat. 21 (3): 68, 1961. 23 paratypes; Saline Valley, Inyo Co.. California, 1-11 Nov. 1959 (B. H. Banta). Eleodes dentipes sub sp. sordida Blais. Can. Ent. 67:30. 1935. 1 paratype; Tulare Co., California. Sept. 30. 1969 list of insect types 153 Eleodes novoi^errucula Boddy. Pan. Pac. Ent.. 33(4): 195. 1957. 2 paratyjios; 1 Pullman, Washington. 27 May 1907, l-Coeur d' Alene. Idaho. June (Wickham). Eleodes ( ^ letahlapylis ) californica Blais . Pan. Pac. Ent., 4(4) 1965. 1929. 1 para type; Pal mSprings, Riverside Co., California, 10 Mar. 1925 (E. C. Van Dyke). Eleodes (Holeleodes) bryanti Blais. Tr. Amer. Ent. Soc. 63: 137, 1937. 1 paratvpe; Graham Mts.. Ariz.. 12 Aug. 1933. (Owen Bryant), Lot #294. 8 topotypes determined by Blaisdell; collected 10-25 Sept. 1937, at 7400' and 9700' (Owen Bryant). Lariversius tibialis Blais. Pan. Pac. Ent. 23:59-62, 1947. 2 paratypes; Pyramid Lake, Nevada; 24 Aug. 1941 and 1 Sept. 1940; sand dunes (Ira LaRivers). Alaephus nevadensis Tanner. Brigham Young Univ. Sci. Bull; Biol. Ser. 6(1): 39, 1965. Type and 4 paratypes; Nevada Test Site, Mercury, Nye Co., Nevada, 25 July 1961. FAMILY SCARABAEIDAE Scerica pruinosa Saylor. J. Ent. &Zool. 27:2, 1935. 1 para type; July 1933; Colinga, Kings Co., California. Diplotaxis brevicornis Cazier. Great Basin Nat. 1:136-37, 1940. 1 paratype; Pyramid Peak, Dona Ana Co., New Mexico, 12 Aug. 1930 (F. R. Fesberg). Diplotaxis impressijrons Cazier. Great Basin Nat. 1 : 127. 1940. 1 paratype; Cedarville. Modoc Co., Calif., 20 May 1939 (P. C. Ting, M. A. Cazier, J. A. Downes, T. Aitkens). Coenonycha tingi Cazier. So. Cahf. Acad. Sci.. Bull. 37:126, 1937. 2 paratypes; cT and 9. Nepa, Nepa Co., CaHf., 20 March 1937. (H. R. Leech, M. Cazier), {Adenostoma fasciculatum H. and A.). Coenonycha ampla Cazier. Amer. Mus. Nov. 12 39:14, 1943. 1 d paratype; Coalings, Calif.. 20 Mar. 1940 (K. S. Hagen). Coenonycha testacea Cazier. So. Calif. Acad. Sci.. Bull. 36:127. 1937. The Great Basin Naturalist 154 V. M. TANNER AND D. R. HARRIS Vol. XXIX. No. 3 2 paratv[)es: cf and $ , Clear Creek. Cuyama Canyon. Calif., 7 Mar. 1937 (E. Ross. H. B. Leech, M. Cazier), (Erigonum). Coenonycha hageni Cazier. Anier. Mus. Nov. 1239:15. 1943. 2 paratypes; ? . seven miles West Coalinga, Fresno Co.. Calif. 20 Mar. 1940 (R. G. Dahl) {Erigonum fasciculatum Benth). cf. Coalings, California. 14 May 1938 (M. Cazier), {Erigonum fasciculatum Benth). Coenonyclm barri Cazier. Amer. Mus. Nov. 1239:19. 1943. 1 paratype; McKittrick, Calif., 21 Mar. 1940 (K. S. Hagen). Phobetus palpalis Saylor. J. Ent.&Zool. 28:1,1936. 1 paratype; Indio, Calif., 24 Mar. 1935 (F. R. Piatt). FAMILY CHRYSOMELIDAE Exema byersi Karren. Univ.' Kansas Sci. Bull., 46:670-72. 2 paratypes: eight miles North Lawrence, Kansas, 8 July 1965, (J. B. Karren) (taken on Gutierrez dracunculoides) . Exema mormona Karren. Univ. Kansas Sci. Bull.. 46:659-672. 3 paratypes; One Farr West, Utah (C. J. D. Brown), 2 Hobble Creek Canyon, Uinta National Forest. Utah, 16 Aug. 1961, (S.L. Wood. J. B. Karren) {Gutierreza sarothae) . FAMILY ANTHRIBIDAE-PLATYSTOMIDAE Brachytarsus annulatus Carr. Can. Ent., 60:279. 1930. 1 paratype; Medicine Hat. Alberta. Canada, 1930 (F. S. Carr). Brachytarsus beyeri Schaeffer. Trans Amer. Ent. Soc. 32:277, 1906. 8 cot^^es; California. FAMILY CURCULIONIDAE Hyperodes inter punctatulus Dietz. Amer. Ent. Soc. Trans. 16:36, 1881. 1 paratype; Cypress Mills. Texas (Schaupp). Listronotus leechi Sleeper. Pan. Pac. Ent. Vol. 31 (3): 156, 1955. 2 paratypes: Rawiings Lake. Lumby B.C. 3 Oct. 1946, (Hugh B. Leech) . Lepyrus oregonus tesselatus Van Dyke. Pan. Pac. Ent.. 5:56, 1928. 1 paratype; Banff. Alta.. 13 June 1928 (Owen Bryant). Sept. 30. 1969 list of insect types 155 Pantomorus peregrinus Buchanan. U.S. Dept Agric. Misc. Pub. #341:14. 1939. 4 paratypps: 3-Gulfport, Mississippi. 3 Sept. 1937. (Gladney and Padgett); 1 -Saucier, Mississippi, 3 Sept. 1937 (Dopson, Padgett, Baker). Pantomorus planitiatus Buchanan. U.S. Dept. Agri. Misc. Pub. #341:36. 1939. 2 paratypes; Pueblo. Colo., (H. Soltau Collection). Orchestes paUicornis var. pallidior Leng. Rhynchophora of North ELastern America, Indianapolis, p. 281, 1916. Typ>e and 4 paratypes; Nfld., July. Pnndcleteius bryanti Tanner. Great Basin Nat., 14: 76, 1954. Holotype, allotype, 3 paratypes; Davis Mts., Texas, 9 May 1941. Owen Bryant, 6,700'. Dorytomus rubidus Tanner. Great Basin Nat.. 1(1):23. 1939. Type; St. George, Utah, 20 April 1934 (V. M. Tanner). Lupinocolus blaisdelli Van Dyke. Pan. Pac. Ent. 12:82. 1936. 1 paratype; Hope Valley, Eldorado Co.. California, July. Endalus laticollis Blatchley. Rhynchophora of N. E. America, Indianapolis. 1916. 1 cotype; Dunedin, Florida, 15 March 1913 (W .S. Blatchley). 3 topotypes from Leng Collection. Endalus depressus Burke. The Southwestern Nat. 6 (2): 65-72. 1961. 2 paratypes; Anderson Co., Texas, 31 Aug. 1958 (H. R. Burke). TAxellus haldemani Burke. Southwestern Nat., 8:167-168. fig. 6. 1963. 2 paratypes; College Station, Brazos Co., Texas, 5 and 13 May 1962 (H. R. Burke). Onychylis essigi Tanner. (Jreat Basin Nat.. 14:77-78. 1954. 4 paratyj)es: Saratoga Springs, Death Valley. California, 20 March 1944 and 23 April 1944, (J.N. Belkin). Onychylis texanus Burke. Coleop. Bull. 13:36-37, 1959. 2 paratypes; Anderson Co.. Texas. 31 Aug. 1958 (H. R. Burke). Pscudoeucyllus boulderenis Tanner. Great Basin Nat. 10:71-72, fig. 1. 1950. Holotype; Boulder Dam, Arizona (V. M. Tanner). The Great Basin Naturalist 156 V. M. TANNER AND D. R. HARRIS Vol. XXIX. No. 3 Eugnaniptus nigriventris Schaeffer. Bull. Br. Inst. I. pp. 141-179. 1905. 1 cotype; Huach. Mts., Arizona, Aug. Eugnamptus pallidas Schaeffer. Journ. N.Y. Ent. Soc. XVI. p. 213, 1908. 2 cotypes: Huach. Mts.. Arizona. Eupagoderes hryanti Van Dyke. Pan Pac. Ent.. 27:31. 1951. 4 paratypes; Baboquivari Mts., Arizona. 20-24 Sept. 1933, (Owen Bryant). Eupagoderes simulans Van Dyke. Pan. Pac. Ent., 10(4) : 176-177, 1934. 1 paratype; Allamore, Texas, 2 July 1930 (J. 0. Martin). Eupagoderes californicus Ting. Bull. So. Calif. Acad. Sci., 38:81-83. 1939. 1 paratype: Stove Pipe Wells, Death Valley, California, 13 April 1938 (J. J. DuBois). Eupagoderes hardyi Tanner. Great Basin Nat., 1:31-32, 1939. Type: North Fork Provo Canyon, (D. Ehno Hardy) . Eupagoderes utahensis Tanner. Great Basin Nat. 1:31, 1939. Type: St. George, Utah, (Vasco M. Tanner). Tosastes columhianus Van Dyke. Pan. Pac. Ent., 27:32, 1951. 2 paratypes; 1-Kamloops. B.C. 1 May 1932, (Owen Bryant). Cimbocera buchanani Ting. So. Cahf. Acad. Sci. Bull.,39:134, 1940. 1 paratype: San Marcial, Socorao Co.. New Mexico, 22 June 1921 (C. D. Duncan). Cimbocera peter soni Tanner. Great Basin Nat.. 2:29-30. figs. 1. 2, 1941. 9 holotype, d allotype, $ 11 paratypes, 3 cf paratypes. Virgin River. Utah. (Weidt) ; 6 9 paratypes, St. George, Wash. Co., April, 1921. (Vasco M. Tanner); 1 paratype; Washington. Wash. Co., Utah (Vasco M. Tanner) ; 1 9 paratype; Indianola. Sanpete Co., April 1921 (Vasco M. Tanner). Paracimbocera atra Van Dyke. Pan. Pac. Ent, 14:2, 1938. 1 Topotype: Mt. Charleston, Less Canyon, Clark Co., Nevada, 24 May 1960 (W. Reeves, M. Cazier, P.C. Ting), determined by P. Ting 1941. Paracimbocera artemisiae Ting. Bull. So. Calif. Acad. Sci., 39:39, 1940. Sept. 30. 1969 list of insect types 157 1 paratype; Esmeralda Co., Nevada, 15 Oct. 1907 (F. W. Nunen- macher). Miloderes argenteus Van Dyke. Pan. Pac. Ent.. 11:4. 1935. 1 d" paratvpe; Paonia. Delta Co., Colo.. 18 .June 1926 (E. C. Van Dyke^ Miloderoides vandykei Tanner. Great Basin Nat., 3:23-24, 1942. Holotype, allotype, and 3 paratypes; Virgin River, Utah (Weidt). 2 paraty|)es; St. George, Utah (A. M. Woodbury). Miloderoides niaculatus Van Dyke. Pan. Pac. Ent. 12:72. 1936. 1 paratype; Parma. Idaho, 28 April 1932. Cryptolepidus leechi Ting. Bull. So. Calif. Acad. Sci., 39:147, 1940. 1 paratype; Baker, California (P. C. Ting, M. Cazier, H. Leech). (Atriplex sp.). Cryptolepidus rugicollis Ting. Bull. Calif. Acad. Sci., 39:149, 1940. 1 9 paratype; 3 miles north of Lovelock, Nevada, 17 May 1938 {Atriplex sp.). Cimbocera cazieri Van Dyke. Pan. Pac. Ent. 12:73. 1936. 1 paratype, Baker, California. 27 March 1935 (M. Cazier). Cryptolepidus aridus Tanner. Brigham Young Univ. Sci. Bull., Biol. Ser. 8(2): 11-12. Figs. 5, 6, 7, 1966. 3 paratypes; 4 topotypes; Nevada Test Site, Nye Co.. Nev. Miloderes mercuryensis Tanner. Brigham Young Univ. Sci. Bull., Biol. Ser. 8(2): 16, 1966. 2 paratypes; Nevada Test Site. Nye Co., Nev. Crocidema arizonica Van Dyke. Pan. Pac. Ent, 27:33. 1951. 1 paratype; Santa Catalina Mts.. Arizona, 15 June 1933 (Owen Bryant) . Dyslobus alepidotus Ting. So. Cahf. Acad. Sci. Bull. 36: 79, 1937. 2 paratypes, 2 topotypes; Sigmond Stern (jrove. San Francisco, Cahf. Dyslobus washatchensis Tanner. Proc. Utah Acad. Sci., Arts, and Letters. 15:147-148. Figs. 1. 2. 3. 1938. Holotype, alloty]ie, and 50 paratypes. Aspen Grove. Mt. Tim- panogos. Utah Co.. Utah, July 1936 (Vasco M. Tanner). The Great Basin Naturalist 158 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 3 Omias albus Van Dyke. Pan. Pac. Ent., 11:96, 1935. 2 paratypes; Lind, Washington, 3 June 1921 (M. C. Lane). Cercopeus bolli Burke. Southwestern Nat., 8:164-166, Fig. 5, 1963. 1 para type; 10 miles southwest of Elkhard, Texas. 15 June, 1961 (H. R. Burke). Nemocestes longulus Van Dyke. Pan. Pac. Ent, 12:26, 1936. 1 paratype; Saticoy, Ventura Co., California, June 1924 (S. Flanders). Nemocestes tuberculatus Van Dyke. Pan. Pac. Ent. 12:28, 1936. 1 paratype; Muir Woods, Marin Co., California, 30 July 1908. Nemocestes sordidus Van Dyke. Pan. Pac. Ent., 12:36-27. 1936. 1 paratype; San Jose, California, 1 Aug. 1931. Bagous lengi Tanner. Great Basin Nat., 4: 13, fig. 3, 1943. Type; 3 paratypes; Iowa 207; 2 paratypes; Lake Okoboji, Iowa. 14 July 1917 (L. L. Buchanan). Bagous longirostrus Tanner. Great Basin Nat., 4: 18, fig. 5, 1943. 1 piaratype; Buffalo, New York; 1 paratype; Michigan. Bagous texanus Tanner Great Basin Nat.. 4:20, fig. 6, 1943. 4 paratypes; Victoria, Texas (J. D. Mitchell) (Cyporus virens). Bagous maculatus Blatchley. Rhynch. of N. E. America. Indianapolis, 1916. 1 paratype; Dunedin, Florida, 19 March 1917 (W. S. Blatchley), p. 232. Bagous chandler! Tanner Great Basin Nat. 4:26, fig. 8, 1943. Type and 1 paratype; east side Utah Lake, Utah, 14 June 1941. 4,000' elevation (H. P. Chandler). 3 paratypes; Bear River. Utah. Bagous sellatus LeConte. Rhynch. of Amer., Proc. Am. Phil. Soc. SV, 1876. 1 homotype; St. Augustine, Florida, Liebeck Collection, Com- pared by F. G. Werner, 1942. Bagous obliquus LeConte. Rhynch. of Amer.. Proc. Am. Phil. Soc. XV. 1876. 1 homotype; Enterprise, Florida, May 25, Museum Comparative Zoology. Compared by F. G. Werner, 1942. Sept. 30. 1969 list of insect types 159 Bagous americanus LeConte. LeConte and Horn. Rhynch. 1876. p. 185. 1 honioty])e; N. J. Museum, Coni{)arative Zoology, Compared by F. G. Werner. 1942. Bogous cavijrons I^Conte. LeConte and I lorn, Rhynch. 1876, p. 186. 1 homotype; Mass.. Blatchley Collection, Compared by F. G. Werner. Bagous magister LeConte. Rhynch. of Amer.. Proc. Am. Phil. Soc. XV, 1876. 1 homotype; Good Haven. Mich. (W. G. Dietz). Compared by F. G. Werner, 1942. Bagous transversus LeConte. Rhvnch. of Amer. Proc. Am. Phil. Soc. XV. :188. 1876. 1 homoty])e; Penn Yan, N. Y., July 19, 1925 (Babry). Com- pared by F. G. Werner. 1942. Bagous tingi Tanner Great Basin Nat., 4:27, fig. 9, 1943. Type, 1 paratype; Lake Pilarcitos, San Mateo, California. 27 Aug. 1929 (P. C. Ting, M. Cazier). Bagous restrictus LeConte. Rhynch. of Amer., Proc. Am. Phil. Soc. XV, 1876. 1 homotype. San Tomas. Brownsville, Texas. Vn-29 from Schaef- fer Collection. Compared by F. G. Werner, 1942. Bagous californicus LeConte. Rhynch. of .\mer. Proc. Am. Phil. Soc. XV, :187, 1876. 1 homotype; Los Angeles Co., California. Compared by F. G. Werner, 1942. Bagous puritanus Blatchley. Rhyn. of N. E. America, Indianapolis, 1916. 1 homotype, Drac. Mass. Blatchley Collection, compared by F. G. Werner, 1942. Bagous puslllus LeConte. Rhynch. of Amer., Proc. Am. Phil. Soc. XV, 1876. 1 homotype. Mt. Lee. written with pen and ink, difficult to read. Compared by F. G. Werner, 1942. Bagous floridanus Tanner. Great Basin Nat., 4:30, 1943. 3 paratypes; 2 - Enterprise, Florida. Liebeck Collection. 1 - Ithaca, New York, 3 June 1925 (M. D. Leonard). Bagous dietzi Tanner. Great Basin Nat., 14:74, 1954. Type; Cyprus Mills. Texas (Schaupp). 1 paratype; Texas. Frederick (Blandnard Collection). The Great Basin Naturalist 160 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 3 Bagous angustus Tanner. Great Basin Nat., 14:73, 1954. Type; Newman Lake, Washington, 9 July 1927 (M. C. Lane). Pnigodes tuberosus Tanner. Great Basin Nat., 4:35-36. fig. 12, 1943. Type; Iowa. Pnigodes buchanani Tanner. Great Basin Nat., 4:33-34. fig. 10. 1943. 5 paratypes; Wolfe Canyon, Texas, various dates. 1 paratype; Mexico, Texas, 17 May 1907. 1 paratype; Texas. Tychius albidus Schaeffer. Jour. N. Y. Ent. Soc. 16:219, 1908. 1 cotype; Death Valley. April 91 K on Prosopis julifiora. Tychius suturalis Schaeffer. Jour. N. Y. Ent. Soc. 16:218, 1908. 1 cotype; Nogales, Santa Cruz Co., Arizona (F. W. Nenen- macher) . Dinocleus bryanti Van Dyke. Pan. Pac. Ent., 29:10f, 1953. 1 paratype; Selngman, Arizona. 3 August 1936 (Bryant). Lixus perstriatus Chittnenden. Proc. U. S. Nat. Mus. 77 (Art. 18): 5. 2 paratypes; Cortez, Colorado. 19 June 1925. Cylindrocopturus eatoni Buchanan. Proc. Ent. Soc. Wash., 43:180-181, 1940. 4 paratypes; 2cr and 2$; Big Springs. Lassen Nat'l Forest, California, 2 May 1939 (C. B. Eaton) (ex. stems Ponderosa and Jefferi Pine). Cylindrocopturus furnissi Buchanan. Proc. Ent. Soc. Wash., 42: 1 78, 1940. 4 paratypes; 2^" and 2 9 ; LaGrand, Washington (R. L. Furniss). Eucactophagus weissi Barber. Proc. Ent. Soc. Wash., 19:21, pi. 4, figs. 4, 4A, 4B, 1917. 1 paratype; Summit, New Jersey, from Chas. W. Leng Collec- tion. Eugnamptus nigriventris Schaeffer. Bull. Br. Inst. 1:178. 1905. 1 cotype; Huachuca Mts.. Arizona, VII-II. Eugnamptus pallidus Schaeffer. Journ. N. Y. Ent. Soc. XVI, 1908:213. 2 paratypes; Husch. Mts., Ariz. Kietana gressitti Tanner Brigham Young Univ. Sci. Bull. Biol. Ser. 1969. 10(3) :8-9. Sept. 30, 1969 list of insect types 161 1 paratype; Solomon Islands; Guadalcanal, (jold Ridge, March 21, 1955 (E. S. Brown). Moluccohius marshalli Tanner Creat Basin Nat. XX. 1960:23-26. lype and 105 para types; U. S. F*itu Military Airfield, located between Pitoeo and Sabatai, Morotai Island; Oct. and Dec. 1944 (Ernest Reimschiissel). Atactophysis cor data Illlr. Verb. Naturf. Ges. Basel XLV, 1934, 9. 1 honiotype; Solomon Islands, Bougainville, Is. Kokure. nr. Crown Prince Ra. 900 M. June 10, 1956 (J. L. Gressitt). Platyacus subalatus Hllr. Wien. Ent. Zeit XXIX, 1910, p. 194. 2 homotypes; Solomon Islands, Bougainville, Is. Kokure, nr. Crown Prince Ra. 900 M. June 10. 1956 (J. L. Gressitt). Platyacus nigrocristatus Illlr. Verb. Naturf. Ver. Basel XLV, 1934, p. 22. 2 bomo types; Solomon Islands, Bougainville, Simba Mission, June 29, 1955 (J. L. Gressitt). Platyacus websteri Hllr. Stett. Ent. Zeit. LVIII, 1897, p. 270. 2 homotypes; Solomon Islands. Buka Is., Gagan. 40 m. June 15, 1956 (J. L. Gressitt). Platyacus decoratus Fst. Stett. Ent. Zeit LVIII, 1897, p. 272. 1 bomo type; Solomon Islands, New Georgia Group, N-Georgia, Is. Munda, 1-30 m (J. L. Gressitt). Trigonops minuta Tanner Brigham Young Univ. Sci. Bull. Biol. Sci., 1969, 10(3):26-27. 2 paratypes; 1 - Cboiseul Is., Luti, Sept. 8:1, 1958 (F. G. Fene- more); 1 - Ysabel Is., March, 1932 (R. A. Lever). Trigonops marshalli Tanner Brigham Young Univ. Sci. Bull. Biol. Ser., 1969, 10(3): 30-31. Holotyjie and three paratypes; Santa Isabel Is., X-19-1960 (J. Tubua). Trigonops paravicinii Hllr. Verb. Naturf. Ges. Basel XLX., 1934, p. 16. 1 homotype; Solomon Islands, New Georgia Island. Trigonops planicollis Hllr. Verb. Naturf. Ges. Basel XLX, 1934. p. 16. 1 homotype; Solomon Islands, Western Group, Kolombangara, Oct. 2, 1954 (E. S. Brown). Trigonops exophthalnius Hllr. Wien. Ent. Zeit XXIX, 1910. p. 187. The Great Basin Naturalist 162 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 3 2 homotypes; Solomon Islands, Malaital (R. A. Lever and P. G. Fenemore). Trigonops platessa Hllr. Verh. Naturf. Ges. Basel XLV, 1934, p. 19. 6 homotypes; Solomon Islands, Guadalcanal Isl. 1944-45 (D E. Beck). Trigonops granulosa Tanner Brigham Young Univ. Sci. Bull. Biol. Ser., 1969, 10(3):35-36. Holotype, allotype, and 4 para types; Solomon Islands, Florida Island, April 1944 (H. P. Chandler). Trigonops isabellae Tanner Brigham Young Univ. Sci. Bull. Biol. Ser., 1969, 10(3):36-37. 8 para types; Solomon Islands, Guadalcanal Island, 194-4-45 (D E. Beck). Trigonops carinithorax Hllr. Verh. Naturf. Ges. Basel SLV, 1934, p. 20. 2 homotypes; Solomon Islands, Bougainville Is., Kieta, Oct. 10, 1927 (J. L. Fraggatt). Trigonops bougainvillensis Tanner Brigham Young Univ. Sci. Bull. Biol. Ser., 1969, 10(3):38-39. 5 paratypes; Solomon Islands, Bougainville Is., June 4, Boha (J. L. Gressitt) ; Kohura, 690 M. June 8-18, 1956 (E. J. Ford, Jr.). Trigonops guadalcanalensis Tanner Brigham Young Univ. Sci. Bull., Biol. Ser., 1969, 10(3):39-40. Holotype, allotype, and 18 paratypes; Solomon Island, Guadal- canal Is., 1944-45 (D E. Beck and Ernest Reimschiissel). Trigonops helleri Tanner Brigham Young Univ. Sci. Bull., Biol. Ser., 1969, 10(3):40-41. 6 paratypes; Solomon Islands, New Georgia Group, N. Georgia Island, July 15, 1959 (J. L. Gressitt). Trigonops dilaticollis Gunther Mitt. Deut. Ent. Ges., 8:3, 1937. 2 homotypes; Solomon Islands, S, Malaita Is., May 5-7, 1934 E. H. I^ver). Trigonops notaticollis Hllr. Wien. Ent. Zeit XXIX, 1910, p. 190. 3 homotypes; Solomon Islands, Sikaiana, March 23, 1936 (R. A. Lever) . Trigonops forticornis Hllr. Wien Ent. Zeit XXIX, 1910, p. 187. 2 homotypes; Solomon Islands, Guadalcanal Is., Tenaru R., 1945 (F. E. Bohart). Trigonops gressitti Tanner Brigham Young Univ. Sci. Bull., Biol. Ser., 1969, 10(3):44-45. Sept. 30. 1969 list of insect types 163 4 paratypes; Solomon Islands, Bougainville Island. Boku and Kohure, June 10, 1956 (J. L. Gressitt and E. J. Ford, Jr.) Trigonops gloriosa Tanner Brigham Young Univ. Sci. Bull. Biol. Ser., 1969, 10(3):45-46. 1 paratype; Solomon Islands, Bougainville Island. Kokure. nr. Crown Prince Ra. 900 M., June 9, 1956 (J. L. Gressitt). Lophothetes reimschiisseli Tanner. Great Basin Nat. XX (1-2), 1960; 26-28. Type and 39 paratypes; Admiralty Islands, Manus, Sept. 1944 (Ernest Reimschiissel ) . Rhyncogonus debilis Van Dyke Bernice P. Bishop Museum, Occasional Papers, XIII (11): 119, 1937. 2 paratypes; Rurutu Island. August 28, 1934, Austral Islands, Mt. Manurova, 1,200 feet, (sweeping grasses and low herbage) (E. C. Zimmerman). Rhyncogonus griseus Van Dyke Bernice P. Bishop Museum, Bull. 98:44; Marquesan Insects No. 2 homotypes; Nukuhiva, Marquesas Islands, September 20, 1920 (E. W. Quayle). Compared by Vasco M. Tanner. Rhyncogonus excavatus Van Dyke Bernice P. Bishop Museum, Occasional Papers, XIII (11): 116, 1937. 3 paratypes; Rurutu Island, September 2, 1934, 1000 feet elev., South Slope Mt. Teape, Austral Islands (Beating. Dryopleris) ; (E. C. Zimmerman). 1 paratype; Rurutu Island, August 28, 1934, 1000 feet elev.. South Slope Mt. Manuseva, Austral Islands, on Piper (E. C. Zimmerman) . Rhyncogonus nigerrimus Van Dyke Bernice P. Bishop Museum, Occasional Papers, XIII (11): 119, 1937. 1 paratype; Raivavae Island. Austral Islands (E. C. Zimmer- man). 1 paratype; South Slope Mt. Muanui (beating shrubs), August 6, 1934. 1 paratype; Mt. Miro, 1,000-1.300 feet. Rhyncoponus nodosus Van Dyke Bernice P. Bishop Museum, Occasional Papers, XIII (11): 113, 1937. 2 paratypes; 1 9 Tubuai Island. August 20, 1934, S. W. Ridge, Mt. Taita, 1,100 feet. Austral Islands (D. Anderson). 1 Tubuai Island, August 21. 1934, Mt. Taita, 1,200 feet. Austral Islands (beating) (E. C. Zimmerman). The Great Basin Naturalist 1(34 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 3 Holcolaceus viridulus Mshl. Ann. Mag. Nat. Hist. (12), 6, p. 324. 5 cotypes, 2 d" , 3 9; South Africa, Natal, nr. 1 larding, Weza plantations, March 1951, Wattle Res. Inst. (Damaging seedlings of Pinus patula and Cryptomeri japonica) . Orochlesis conspersa Zimmerman Proc. Hawaiian Ento. Soc. 10(1): 165. 1 paratype; Solomon Is. (W. M. Mann). Antliarrhianus verdcourti Mshl. Ann. Mag. Nat. Hist. (12)8:300 figs. 8 cotypes, ^dd-, 5? 5; Kenya, Matthews Range. June 1954 (B. Verdicourt) on 9 cone of Encephalartos. Blosyrus mazambicus Mshl. Mem. Estud. Mus. Zool. Univ. Cambra (2) LXXXI, p. 3, 1935. 4 cotypes; Port E. Africa, Mozambique Is., 6, IX-1929 (Sir G. A. K. Marshall). Nematocerus perditor Mshl. Ann. Mag. Nat. Hist. (12), 4, p. 839. 12 paratypes, Kenya, Eldoret, April, 1950 (R. H. Lee Pelley). STUDIES ON RAPTOR MORTALII Y IN WESTERN IH AH' David H. Ellis, Dwight G. Smith, and Joseph R. Murphy- In past studies of predatory bird destruction. Hickey (1949) found that 102 of his banded juvenile marsh hawks were shot during their first year of life, while more recently Sprunt (1963) re{)orted that 91 of the 118 Bald Eagles known to have been killed in 1962 had been shot. Although S]X)fford (1964) and others have called attention to the high raptor mortality caused by illegal predator con- trol programs, and Imler and Kalmbach (1955) have reviewed Bald Eagle destruction in the years of the lx)unty laws, the extent of mor- tality caused by indiscriminate shooting is unknown. In this study we attempted to locate all raptors killed during a two year period in Cedar Valley. Utah County, Utah. The study was centered on a 12.1 mile stretch of gravel road paralleled by single cross bar utility poles which were frequently utilized as perches by predatory birds in the valley. The study area was located within an intermontane valley comprising some 170 square miles, and averaging 4,900 feet in elevation; dominant plants were big sagebrush (Artemesia tridentata) and shadscale {Atriplex conferti- folia). The land is used for dry farming and sheep range, and sup- ports two small settlements. The valley is also a favorite rabbit hunting locality and receives large concentrations of hunters, par- ticularly on winter weekends. Procedure The initial survey of the study road took place on 29 April 1967. and it was then subsequently surveyed at intervals of approximately one to three months, until the fall of 1968 when the pole line was dismantled. For sake of comparison, surveys were also made of the same pole line following its divergence from the study road. Many additional miles of roads and cliffs were also surveyed in an attempt to locate dead birds. Results and Discussion Thirty dead raptors were found on the initial road survey; this total included 14 Golden Eagles, 14 Buteo hawks, 1 Sparrow Hawk, and 1 Great Horned Owl. By the end of the study period, a total of 38 dead raptors had been found along this road and an additional ten in the remainder of Cedar Valley (see Table 1). Density of kills on the study road averaged 3.14 birds per mile, and included an extreme situation in which four dead Golden F^agles were found under two adjacent poles. Those birds suffering the heaviest mor- 'This study was supported in part liy a prant from tlie National Audubon Society. Gratitude is expressed to ihem, and also to the Department of Zoology and Entoniology, Brighani Young University for transportation and facilities. -department of Zoolopy and Kntomology, Brigliam Young ITniversity. 165 The Great Basin Naturalist 166 ELLIS, SMITH, AND MURPHY Vol. XXIX, No. 3 Table 1 Dead Raptors Found During Study Period Cedar Valley, Utah Golden Elagle {Aquila chrysaetos) 26 Bald Eagle {Haliaeetus leucocephalus) 2 Rough-legged Hawk (Buteo lagopus) 8 Ferruginous Hawk {Buteo regalis) 1 Red-tailed Hawk {Buteo jamaicensis) 2 Swainson's Hawk {Buteo swainsoni) 1 Buteo* 5 Cooper's Hawk {Accipiter cooperii) 1 Sparrow Hawk {Falco sparverius) 1 Great Horned Owl {Bubo virginianus) 1 Total 48 'Not identifiable to species owing to decomposition. tality included the eagles (26 Golden Eagles and two Bald Eagles) and the Buteos (seventeen dead birds of four different species). During this same period only one dead raptor was found along the segment of the pole line not paralleled by the road. The approximate times of death were estimated from the degree of decomposition at the time of discovery and the rate of decomposi- tion observed in birds found shortly following death. Four time periods were assigned from the study road data. It was estimated that nineteen raptors, including ten Buteos and nine Golden Eagles, had been killed before the winter of 1966-67. During the winter and spring of 1966-67, fourteen raptors, including seven Golden Eagles and five Buteos, were killed. Two more Golden Eagles were killed during the summer of 1967, and an additional three during the winter of 1967-68. The heaviest mortality occurred in the fall and winter period, which also coincides with the periods of heaviest sport hunting. Two final road surveys were taken after the dismantling of the pole line in the fall of 1968, but no recently dead raptors were found. Twenty-three of the dead eagles were suitable for age analysis. Fifteen were immature Golden Eagles, six were adult Golden Eagles, and two were adult Bald Eagles. Both Hickey (1949) and Craighead and Craighead (1956) similarly found that the highest raptor mor- tality occurs among the iuveniles. and attribute this to the inex- perience of these birds. We found that when driving along the study road we could approach to within fifteen meters of juvenile eagles perched on the pole, while the adult birds rarely displayed such tolerance of human presence. At least two known hunting methods were used to destroy the birds. During the day some hunters were observed to drive back and forth along the road for the express purpose of obtaining suitable raptor targets, while at night spotlights were employed to locate roosting birds. Evidently the large mmibers or raptors present on Sept. 30. 1969 raptor mortality 167 certain winter days attract considerable attention from the s|)orts- men. For example, on the morning of 21 December 1967 we found eighteen Rough-legged Hawks, five Golden Eagles, two Ravens, three Marsh Hawks and one Prairie Falcon perched on poles along this twelve-mile segment of road. An im]X)rtant aspect of this study concerns the pn)bable causes of death of these predators. Of the 48 dead birds from the study area, only two were found sufficiently close to the road to indicate the possibility of their having been killed by vehicles. Poisoning was also considered as a possible cause of death, since several 1080 bait stations were located in Cedar Valley. Data furnished by U. S. Fish and Wildlife Service personnel would tend to indicate that high tolerance levels of predatory birds for this poison might eliminate it as a factor; we feel that such evidence is inconclusive, however, since no actual analyses of carcasses for 1080 or pesticide residues were made. Such analyses should definitely be a part of future studies of raptor mortality, in our area as well as elsewhere. In most cases, there were clear indications that the birds had been deliberate- ly shot. For example, a Ferruginous Hawk nested immediately next to the study road and w^as photographed 8 April 1967 (Weston and Ellis, 1968). On 19 April 1967 it was found dead v\dth holes in the head and body, and its legs and tail had been removed. Bodies of the raptors were almost always found intact and seldom scattered by scavengers. These remains often exhibited shot holes in the feathers and bones. The preponderance of the evidence available appears to support the hypothesis that shooting was the cause of death for a maiority of the raptors found. In our opinion, this brief study highlights a major problem re- lating to the future survival of raptorial birds; it also demonstrates gross disregard of present federal and state laws protecting raptors on the part of a segment of the public. Additionally, it emphasizes the present danger of indiscriminate shooting to high concentrations of raptors, and the possible extent of such mortality in relatively small areas. Literature Cited Craighead, J. J., and F. C. Craighead, Jr. 1956. Hawks- Owls and Wildlife. The Stackpole Co.. Hanisburg. Pa. HiCKEY, J. J. 1949. Survival studies of banded birds. Unpublished Ph.D. Dis- sertation. Univ. of Michigan. Ann Arbor. Imler, Ralph H.. and E. R. K-IiI-mbach. 1955. The Bald Eagle and its eco- nomic status. U. S. Fish and Wildlife Serv. Circ. 30. Spofford. Walter R. 1964. The Golden Eagle in the Trans-Pecos and Ed- wards Plateau of Texas. Nat. Aud. Soc. Cons. Report No. 1. Sprunt. Alexander, IV. 1963. Bald eagles aren't producing enough vouiig. Aud. Mag. 65:32-35. Weston, J. B.. and D. H. Ellis. 1968. Ground nesting of the Ferruginous Hawk in west-central Utah. Great Basin Nat. 28:111. ac "&. The Volume XXIX, No. 4 December 31, 1969 Mus. coMP. zooa LIBRARY MAR 11971 HAaVARD .SilY; ^^-^ — .^ HARVARD Great Badn pubushed by Brioham Young University GREAT BASIN NATURALIST Editor: Vasco M. Tanner, Department of Zoology and Entomology Brigham Yoimg University, Provo, Utah Associate Editor: Stephen L. Wood, Department of Xoology and Entomology, Brigham Young University, Provo, Utah Members of the Editorial Board: Ferron L. Andersen (5), Zoology Jay V. Beck (3), Bacteriology Robert W. Gardner ( 1 ) , Animal Science Joseph R. Murdock (4), Botany WiLMER W. Tanner (2), Zoology, Chairman of the Board Stanley L. Welsh ( 1 ) , Botany Ex officio Members: A. Lester Allen, Dean, College of Biological and Agri- cultural Sciences Ernest L. Olson, Chairman, University PubHcations, Uni- versity Editor The Great Basin Naturalist PUBLISHKD AT PrOVO, UtAH BY Brigham Young University Volume XXIX December 31, 1969 No. 4 QUALITATIVE BEHAVIOR OF A PUPFISH (CYPRINODON ATRORUS) IN DIFFERINC, ENVIRONMENTS Murray Itzkowitz and W. L. Minckley' Introduction Fishes have been used extensively by ethologists. and there are many papers that have contributed greatly to. the understanding not only of fish behavior, but of general ethological theory as well (Aronson, 1949; Baerends and Baerends-Van Boon, 1950; Baerends. et al. 1955; Morris. 1958; Barlow, 1961a, et seq.; Nelson. 1964; Liley. 1966; Simpson. 1968; Miller and Hall. 1968; many others). How- ever, since certain, behaviors are modifiable (Hess. 1962; Marler and Hamilton, 1966). it is surprising that there are so few studies that compare a fish's behavior in differing environments. The present report describes qualitative differences in behaviors elicited by a pupfish, Cyprinodon atrorus Miller, in aquaria and in natural and semi-natural habitats. Materials and Methods Cyprinodon atrorus inhabits saline marshes and lakes on the floor of the Cuatro Cienegas basin, central Coahuila. northern Mexico (Minckley and Itzkowitz, 1967; Miller, 1968; Minckley, 1969). Such habitats are severely variable, warming and C(X>ling rapidly and subject to radical changes in salinities, dissolved oxygen, and so on (Minckley and Cole, 1968). and su{)port only the most resistant biotic elements. C. atrorus is often the only fish species j^resent at a locality, but another cyprinodontid. Lucanin interioris Hubbs and Miller, and two poeciliids. Gambusia longispinis Minckley and G. marshi Minckley and Craddock. are sometimes abundant. Observa- tions on the behavior of C. atrorus have been made at nimierous places in nature, most intensively by Minckley and Elena T. Arnold in summer 1968. The activities observed were similar to those observed in a semi-natural pond (described below). The [)upfish used for study all originated from a stock caught in December 1963 from marshes associated with Laguna de San 'Department of Zoology, Arizona State University, Tenipe 85J8I (Ilzko\vit/"s present ndilrcss: Department of Zoology, University of Maryland, Colleee Park J074O). Ueseairli siipiMirtod in port by N.S.K. Grants GB-2461 and GB-(i477X, to Minrkley. 169 170 The Great Basin Naturalist ITZKOWITZ AND MINCKLEY Vol. XXIX, No. 4 Pablo. 13 kilometers south-southeast of the village of Cuatro Ciene- gas de Carranza. Coahuila. Mexico. Seventeen individuals were placed in an artificial pool in March 1964, and by August a large, stabilized population had developed. It was studied intensively be- tween 2 February and 30 April 1966. Breeding activities of this pup- fish in nature begin in late January, intensify through early July, then decline to continue throughout the summer at a lower level. A second period of intense breeding activity often occurs in early autumn. Vhe climate in Tempe. Arizona, is similar to that in the Cuatro Cienegas area, and the fish also behave similarly. The semi- natural pond was isolated from disturbances in a large patio at Arizona State University. It was cement lined, but had a several- year accumulation of flocculent calcareous sediment. Considerable shade and organic input occurred from an overhanging mesquite (Prosopis) . and city water continuously passed through the system. Maximum dimensions of the irregularly-shaped pool were 6 by 8 meters (m). and maximum depth was about 1.25 m (Fig. 1). Fishes were maintained without supplementary feeding. Observa- tions were from a {)oint about two meters above the water, by naked- eye and through use of binoculars. Other vertebrates in the pond included poeciliid fishes, Xiphophorus couchianus (Girard) and Flexipenis vittatus (Hubbs), and a box turtle, Terrapene coahuila Schmidt and Owens. Xiphophorus were rare, Flexipenis built a large Fig. 1. Sketch map of the semi-natural pond at Tempe, Arizona, where Cyprinodon atrorus from the Cuatro Cienegas basin, Coahuila, Mexico, was studied. Contours are approximate, depths are in cm, and the hatched area is in the position of territories that were specifically observed. Dec. 31. 19(S9 in-.ii w ion oi imim imi 171 |)()|)uhili(iii ill the List 1)1 the stiul\' iici-iod. and the lurtlc \va^ sci rclivo during \hc diiy. MoroK I' ATII.HNs A behavioral sequence su( h as courtship consists of discrete motor elements (e.^.. muscle contractions) that occur with other such elements to produce synchroni/.ed patterns. Categorization i'^ subjective since an observer nuist interpret the beginning and end of a given pattern, and evaluate variations. Major interpretive problems arise in description of numbers or intensities of components, or in the amount of time required for their completion. For pre.sent pur- poses, motor j)atterns making uj) broader behavioral sequences were weighted equally, and attemj)ts were made to describe and evaluate variations. Where jiossible. names and definitions of patterns folhnv Barlow^ (1961a), as denoted by quotation marks. Contacting. — "As the female moves slowly over the bottom the male stays beside her, and her head is usually just in front of his. Often they are actually touching." Tilting. — The female swims slowly within 0.5 centimeters (cm) of the bottom and tilts her body downward at an angle of 30° to 4'5°. All unpaired fins are spread. Barlow (1961a) considered this the beginning of nipping (see next), but in C. alrorus nipping may be omitted following a tilt. Nipping. — "From the tilted position, the female opens her mouth, presses against the bottom, and noiTnally takes up a mouthful of the substrate. . . . Then the body is dropped down against the bottom. When horizontal, the female either immediately spits out the substi^ate. or swims forward a short distance, stops, and then expels it." We include "halting" as described by Barlow (1961a) as a terminal component of a nip. Sidling. — "The male swims forward and laterally against the female. The male's dorsal fin is folded or half open. The region supporting the anal fin of the male is thrust against the posterior line of the abdomen of tlie female. The body of the male is tipped out of the median plane only slightly, or not at all." S-shaping. — "Seen from above, the body of the pupfish forms a gentle 'S' .... At this time the male and female normally lie side by side on the bottom in parallel S-shapes. The cuiA'ature is more pronounced in the male. The head and anal region of the male are directed toward the female, and the anal fin of the male is extended in her direction. The dorsal fin of the male is spread, and sometimes is bent slightly toward the female. In the female the dorsal fin is spread maximally. Moreover, her vent is pressed against the bottom and her caudal fin beats rapidly, but with a very small amplitude." Wrapping. — During S-shaping the male wraps his anal fin around the anal fin of the female. Jerking. — "While still S-shaped the head is jerked toward the side opposite that to which it is already directed, tiius initiating a wave of contraction which passes down the body reversing the direction of tlie S-shape. In the female one egg [or more] is extruded by this flexure, and the male presumably emits sperm at this moment." Slow Rising. — Both the male and female slowly rise from the substrate after a wrap. The female then moves away at high speed, and this is almost invariably the termination of spawning by the pair. Patrolling. — "The male in his territory swims straight ahead in spurts of about 30 to 50 cm with the dorsal, anal, and i)ectoral fins folded back .... At the end of each spurt the male stops abruptly by tluowing the colorful pectoral fins forward together in a quick movement that catches the eye. Then the male The Great Basin Naturalist 172 ITZKOWITZ AND MINCKLEY Vol. XXIX, No. 4 Stands momentarily with the median fins raised, and the pectoral fins beating alternatly and rapidly. . . . Then he swims off again in a new direction. In this manner the male pupfish continually crisscrosses his territory." Chasing. — An aggressive fish swims at high speed, often with its mouth open, toward a fleeing individual. If opportunity arises an aggressor will bite or butt a fleeing fish. Lateral Display. — A fish spreads all its fins and presents its flank to another fish. The two fish often simultaneously present a lateral display in a parallel position, with bodies held head high and at an angle of 20° to 45° to the substrate. Tailbeat. — Through use of the caudal fin a fish appears to push water against the side of another fish. Usually a lateral display is the beginning movement of a tailbeat; a more complete description was given by Barlow (1961a). Following. — This pattern appears to have three basic variations that depend on the depth and speed of movement of a female and is subdivided for convenience as follows: 1 ) below — a female swims at slow to moderate speed with all fins extended. 10 cm or more above the substrate, and the male is either directly 2.5 to 3.0 cm below, or at a similar depth below, but behind, with his dorsal and anal fins half extended to completely depressed; 2) above — similar to "following below" except that the male is above a female, usually when the female is less than 10 cm above the substrate; and 3) in line — similar to "following above and below" except that the male is directly behind a female at any depth, and the female usually is swimming faster than when the other two patterns are utilized. Looping. — There are five definable variations of looping. In all instances a male swims in a circle, semi-circle, or "figure-eight." 1) Below — a female in mid-water or near-surface, and stationary, often has a male directly below and swimming in a circle with all fins extended; 2) in front — a female may be at any depth, but usually at least 7.5 cm above the substrate with unpaired fins spread, and the male makes a circular loop or figure-eight directly in front or slightly in front and below; 3) to the side — similar to "looping in front" except that a male is to the side of the female; 4) sidle — a male assumes a sidle position (described above) then leaves a female to loop in front, then returns (most often on the other side) to continue a spawning sequence; and 5) zig-zag — a female stationary or moving slowly, with fins spread, is approached from a distance of 10 to 30 cm by a male performing continuous semi-circles (a male may also swim awa>' making such movements, and in such instances the female may follow the male). The looping pattern, with many variations, also is used by territorial males in display against intruders. Nuzzling. — This describes a motor pattern in which a male touches a stationary female with the anterior part of his body. 1) one — A male is below a stationary female and moves upward until the head and nape come into contact with, or slightly posterior to her branchiostegal region, then moves slowly back to the anal fin. around the side, and forward to a typical contact; 2) two — similar to "nuzzling one" except that a male moves directly to contact position without moving back to the anal fin; and 3) top — a male touches his lower head and breast to the dorsum of a female's head, then moves laterally and down to contact. Courtship and Spawning in the Artificial Pond and in Nature The male of Cyprinodon atrorus is a highly aggressive, vigorous- ly territorial animal. The bright, irridescent blue body and contrast- ing yellow-orange fins, plus bold patrolling within a limited area. must make him conspicuous to other fish, and these features may also serve as a display to attract females that are willing to spawn. A female, when prepared to spawn, moves into a male's territory and nips the substrate. If the male is inattentive, the female may nip Dec. 31.1969 behavior oi- i'ipfimi 173 several times, until the male approaches. Upon siphtin^ a female, the motor patterns were an intruder, or sometimes used a zig- zag loop in his approach. Moreover, most males innnediately as- sumed a contact position, with no intermediary disj)lay. This was followed by a tilt and nip or a lunging nij) by the female. The male sidled, both S-shaped, he wrapped, and both fish slowly rose. The female then swam from the territory at high speed, with the male following behind (a pursuit indistinguishable in such instances from a charge used when chasing an intruder). In totals of 116 observed spawns in the pond and 50 in nature that ended in a slow rise, this repertoire was invariable in sequence (Fig. 2). One unusual series of observations were made of a pair "trapped" in a small area by surrounding clum})s of filamentous algae. The male was exceedingly active, looping in front almost continuously then quickly contacting after the female nipped. The water was less than 1.5 cm deep, so a slow rise rarely followed a spawn. Both lay quietly for a second or so. then the female would dart forsvard with the male following in line. Algal mats blocked the female's rush, and she stoi)ped after 3 to 5 cm. The male inmiediately began nuz- zling and attempting to contact. This resulted in a nip and another spawn 12 of 33 times in a 31 -minute period. The other times the female fled and dove into algae, followed by an active, looping search by the male. The female would re-appear, fanning her ex- tended fins "nervously," and would nip or remain stationary. In the latter case she was immediately nuzzled and contacted, and nipped PATROLS ^^- APPROACHES -*^ TILTS AND NIPS- LOOPS AND/OR CONTACTS ^^"^^ CHASES TILTS AND NIPS S-SHAPES AND WRAPS SLOW RISES Fig. 2. Courtship and spawning sequences of Cyprinodon atrorus in natural and semi-natural habitats. The Great Basin NaturaUst 174 ITZKOWITZ AND MINCKLEY Vol. XXIX, No. 4 and spawned or again fled to hide. No other observations of nuz- zhng have been made under field conditions, and no such hyper- activity has otherwise been noted in C. atrorus under natural or semi-natural conditions. In any stage of a reproductive sequence a male would leave a female to challenge an intruder. In the pond between February and late April about 50 percent of the females that nipped the substrate in a male's territory failed to spawn, and most times this resulted from interruption by other fishes. No quantitative data are available from observations in nature, but disturbances of a similar nature were often seen. While some discrimination by a non-spawning male between homo- and heterospecific interlopers was evident, no such recognition was obvious when a male was interrupted during a spawning sequence. Even intruding poeciliids were aggressively driven from the area when a defender was spawning, as were young C. atrorus that are oftentimes ignored by defending males. Since looping also occurred when no interlopers were present, or when a male was returning to a female after chasing, it may also serve to pacify a "nervous" female or to block her retreat from the spawn- ing area. The motor patterns of tilting, jerking, following above, and following below were not observed in the pond or in natiu-e. Courtship and Spawning in Aquaria Male and female Cyprinodon atrorus were first kept isolated for a number of days in separate. 28-liter tanks (35 by 26 by 22 cm), then a male was introduced into a female's tank. Upon introduction, a male always initially sank to the bottom, or moved into a position along a wall. The female also would sink to the substate, with all fins extended. The female initiated activity, swimming to the male and tilting and/or nii])])ing the substrate nearby. If a male was inatten- tive a female would "mildly" butt or bite at his body. Males some- times responded to such aggression with tailbeat. and if this occurred the female always retreated. When a nip occurred the male usually swam directly to a contact position. Typical behavior consisted of a variable period of contact, followed by a sequentially-inconsistent assemblage of motor patterns on the part of the male that eventually terminated in a spawn (Fig. 3). On the average, in 668 observed spawns, a sequence of contact^ tilt and/or nip-^ S-shape^ wrap^ ierk or slow rise predominated (Fig. 4). Females under conditions of aquarium isolation often remained receptive to a male after the initial spawn. Females wdth high sexual tendencies spawned immediately after the pair was placed together, then began swimming slowly through the tank, conveniently acces- sible to the male. This is not the case in nature since a female im- mediately leaves the male's territory after the spawn is consum- mated. The presence and "receptivity" of a female stimulated hyper- active sexual behavior on the part of a male, such as nuzzling, loop- ing, and following. These dis])lays had little if any sequential cor- Dec:. 31, 1909 liEIIAVIOU Ol I'l Pl-I.MI 173 REPRODUCTIVE DRIVE FOLLOW ABOVE- FOLLOW BELOW FOLLOW IN LINE -^ Fig. 3. Relationships of courtship and spawning motors patterns of Cyprino- don atrorus in laboratory aquaria. relation to one another or to other patterns (contacting, nipping. etc.) of a more terminal spawning sequence. However. 4-1 per- cent of the courtship patterns (whatever they were) led directly to a second spawn. 1 he behavior, notwithstanding its variations, must therefore have succeeded in stimulating the female to continue re- productive activities. When a female was not initially prepared to spawn, a similar series of random patterns was produced by a male. However, it was rare for a male to induce an initially unresponsive female to spawn. The male C. atrorus. when territorial, is always receptive to a female, and the female controls spawning by presenting herself within a territory and {)erforming the nij)ing pattern. The female apparently requires little stimulation by a male (excepting, perhaps, a short period of contacting, or some visual stimulation from male defensive activities) when she is prepared to spawn. Random use of courtship motor patterns api)ears to function in stimulation of a female to continue the spawning activities, rather than as an initiator. Rigid courtship sequences require reciprocal stimulation, and randomness of behavior of male C. atrorus may result from a lack of cues from the female. Territori.ality in the Semi-n.\tur.\l Pond and in Natitre Males of Cyprinodon atrorus begin to establish territories in late January, and remain aggressive throughout the breeding season with the intensity of behavior varying with intensities of rei)roductive activities in the given habitat. Males began sporadic aggressive ac- 176 The Great Basin Naturalist ITZKOWITZ AND MINCKLEY Vol. XXIX, No. 4 FOLLOW IN LINE- 59% S-shape 20% Contact 11% Nip 28% Follow below 26% Nip 16% Contact 12% Follow in line 5% Follow above 3% Nuzzle 54% Follow below 26% Follow above 9% Contact 6% Nip 3% Loop 3% S-shape 38% Contact 35% Follow below 15% Nip 5% Follow above 5% Follow in line 3% S-shape 70% S-shape 21% Contact 5% Nip 3% Tilt FOLLOW ABOVE - FOLLOW BELOW- 48% Jerk 45% Contact 7% Slow rise 38% Contact 32% Nip 13% Follow below 5% Follow in line 5% Loop 4% Nuzzle 28% Follow in line 23% Nuzzle 18% Follow above 18% Loop 7% Nip 7% Contact 68% Nip 19% S-shape 8% Tilt 3% Follow above 1% Follow below 1% Nuzzle 100% Contact Fig. 4. Quantitative relations among a motor pattern and those patterns ob- served to follow it in Cyprinodon atrorus under laboratory aquarium conditions, based on 668 observed spawnings. tions in February in the artificial pond. Fights were not confined to a particular area, and usually consisted of short charges with little or no contacting. Some fighting was associated with feeding pits during this period, an activity continued almost throughout the year by non- reproductive males, females, and juveniles (Minckley and Arnold, 1969). Pit-building and defense is unrelated to reproductive activities in C. atrorus, although it may have significance in the sexual be- haviors of some other pupfish species (E. T. Arnold, pers. comm.). In mid-February, several males established temporary areas in shallows of the semi-natural pond, but these were not defended for more than a few hours. They were 15 to 25 cm in diameter in water not more than 5 cm deep. Boundaries were ill-defined and frequent- ly changed more than five cm in a few minutes. Border fights be- tween neighboring fish rarely occurred since territories were widely disj)ersed and usually isolated. Permanent territories were formed by late mid-February, and three, well-defined, adjacent ones were selected for intensive observations. These were situated in a cove that sloped gently to a maximum depth of eight cm. On the pond- ward side was an abrupt slope leading to water more than 30 cm deep. The territories were at depths between 2 and 8 cm (Fig. 1), and occupied all available shallow water. The largest included about 2,100 square centimeters (cm-) and the smallest was 1.050 cm- in size. The range in estimated sizes for territories in nature is 3,200 to 875 cm- (23 estimates), with a mean of about 1,950 cm-. Shapes of Dec. 31.1969 behavioh oi' itpfimi 177 territories raniied from rouiul in open, sparsely po|)uliitecl area>. to elongate and highly variable where heterogeneity of habitat, or the presence of other nudes, influenied the l)oundaries. The tiiree males in the pond vigorously defended tlieir respective areas until inid- Marc li. Others tlien began to form peripheral territories, and wedges defended by new males were progressively forced into and between the three original ones. The three defended areas were markedly compressed to about half their original sizes, and within a week the fish had been displaced and disappeared. Territorial defense by (\ atrorus consists of numerous lateral displays, infrequent tailbeats against peripheral males, and charges against non-territorial males and sometimes females and juveniles. Actual contacts and severe fighting occur when territorial lx)undaries of "matched" males (in size and coloration) are closely appressed, especially w^hen the border meets in relatively deep water (>5 cm). Under such conditions the males present sustained lateral display, tailbeat. and biting, the last generally in the vicinity of the anal fin and flanks. Contact fighting, although rare, usually begins near the surface, and the two males spin about each other as they gradually move toward the bottom. Fights are sustained for as long as 30 seconds, and a small cloud of sediment often obscures the terminal phases of such conflict. Tinbergen (1953). Carranza and Winn (1954), and Miller (1964) have noted that the ferocity of attack by a defending male of fishes they studied {Gasterosteus aculeatus Linnaeus. Fundulus notatus [ Rafinesque]. and Trichogaster trich- opterus [Pallas], respectively) increased as tlie interloper more close- ly approached the territorial mid-point. However, this type of dif- ferential aggression did not obviously occur in C. atrorus. The de- fending male appeared to attack all intruders (excepting young and reproductively-oriented females) with equal aggressiveness, regard- less of their distance from the center of this area. Territoriality in Aquaria Results from a number of experiments with Cyprinodon atrorus in aquaria are similar, and only one is described here. A bare, sand- bottomed. 160-liter tank was used to attemi)t to duplicate tlie terri- torial sequences observed under field conditions. Seven adults of generally equal size, 3 males and 4 females, were jilaced in the tank, and they immediately formed a tightly-knit, stationary cluster (a "pyramid") near the substrate. They remained in tliat position for several minutes, then began exploratory swimming. When disturbed they immediately returned to a pyramid cluster. By the second day the fish began to seek individual refuge when disturbed. There was sporadic aggression, not limited to any i>articular area. On the third day one male defended a small area near the substrate for a short time. At the end of the first week, one male rigorously defend- ed the entire bottom of the tank, from the substrate to about eight cm above, making frequent forays against fish positioned at higher levels. When attacked, other fish fled without defensive display. At The Great Basin Naturalist 1 78 ITZKOWITZ AND MINCKLEY Vol. XXIX, No. 4 the end of the second week another male began to defend a 10- by 38-cni area at one end of the tank, positioned about 8 cm above the bottom and extending to the surface. This was defended against all but the male who continued to patrol the substrate. The third male did not establish an area, and was intimidated by both other males. There was continual, mild, aggressive activity among the females, and they often attacked the subservient male. None of the female attacks was prolonged, but consisted merely of a short charge termin- ating in a butt or bite. The hierarchy in males was maintained for a month, when the experiment was terminated. These results are similar to those obtained by Barlow (1961a) for Cyprinodon macu- larius Baird and Girard. and have bee nduplicated in our laboratory using a number of other pupfishes. Discussion and Conclusions The study of behavior of fishes in the wild is exceedingly diffi- cult, and the abundance of variables existing under field conditions makes it simple to overlook significant factors and to arrive at spurious conclusions. In the laboratory, new factors are introduced by creation of "standard conditions," and data acquired from fish in aquaria may be equally misleading. Behavior of Cyprinodon atrorus in natural and semi-natural habi- tats lacked many components that were commonly present under aquarium conditions. Nuzzling, for example, generally occurred only when a stationary female was 10 or more cm above the sub- strate, and when she remained for some period of time in a male's territory. Since all territories in nature or in the pond were in water shallower than eight cm (and usually less than five cm), physical limitations precluded jierformance of the pattern. The absence of following (especially above and below) under field conditions may also be attributable to insufficient depths. In addition, females in the pond did not remain in the territory after a spawn, but moved away at high speed so that little time was allowed for the male to perform complex display patterns (with the notable exception discussed on page 00). The lack of records of the jerk motor pattern in nature and in the pond is confusing. Barlow (1961a) implied that this was correlated with passage of gametes; since young were abundantly produced in the semi-natural pond, a jerk is obviously not essential for successful reproduction. The jerk motor pattern in aquaria always led to a continuance of spawning (Fig. 3). and only a slow rise resulted in its termination. However, on the one occasion when repeated spawning by a pair of fish was observed under field conditions (p. 00), the female did not jerk, and repeatedly utilized a slow rise (or a period of quiescence in shallow water) after spawning. Tilting is difficult to observe from above, and may be physically impossible for a female in shallow water, and these factors may explain its almost-complete absence from the behavioral repertoire Dec. 31, 1969 behavioh oi- itpiimi 179 ill tlio poiul. llij^lily motivated females in a(]uaria al\va\s tilled, hut often omitted a nip in their pre-spawnin^ movements. The ahbreviated. "to-the-point" spawning se(|uerK<' under natural conditions. hi-pes, 1 d, 1 9 ; Nevada Test Site, Nye Co., Nev. (D E. Beck, H. H. Knight and J. M. Merino). Melanotrichus eurotiae Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 128, 1968. Paratypes, 5 d cT, 5 9 9; Nevada Test Site. Nye Co.. Nev. (D E. Beck, H. H. Knight and J. M. Merino). Taken on Euratia lanata. Melanotrichus atriplicis Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser., 9(3): 125. 1968. Paratype, 1 9 ; Nevada Test Site, Nye Co.. Nev. (11. II. Knight and J. M. Merino). Taken on Atriplex canescens. The Great Basin Naturalist 190 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 Parthenicus furcatus Knight. Brigham Young Univ. Sci. BuL, Biol. Ser., 9(3): 133, 1968. Para type, 1 cT ; Nevada Test Site, Nye Co., Nev. (D E. Beck and J. M. Merino). I'aken at incandescent light. Parthenicus pinicola Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 140, 1968. Paratypes. 1 ? ; Grand Canyon, Ariz.. 40 mi. South. 3 Aug. 1917 (H. H. Knight). 1 d'; Durango, Colo.. 13 Aug. 1925 (H. H. Knight) . Parthenicus merinoi Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser., 9(3): 135. 1968. Paratype. 1 d" ; Nevada Test Site, Nye Co., Nev. (D E. Beck and J. M. Merino). Parthenicus atriplicis Knight. Brigham Young Univ. Sci. Bui, Biol. Ser., 9 (3): 135, 1968. Paratypes, 1 d". 1 ? ; Nevada Test Site, Nye Co.. Nev. (H. H. Knight and J. M. Merino). Parthenicus incurvus Knight. Brigham Young Univ. Sci. Bui. Biol. Ser., 9(3): 150. 1968. Paratype. 1 d" ; Nevada Test Site. Nye Co.. Nev. (D E. Beck and J. M. Merino) . Parthenicus becki Knight. Brigham Young Univ. Sci. Bui, Biol. Ser.. 9(3): 149. 1968. Paratypes, 1 d"- 1 ? ; Nevada Test Site, Nye Co., Nev. (H. H. Knight). Parthenicus conspersus Knight. Brigham Young Univ. Sci. Bui, Biol Ser.. 9(3): 139, 1968. Paratypes. 1 d". 1 9 ; Richfield. Utah, 8 Julv 1930 (Light trap). (E. W. Davis). Parthenicus cowaniae Knight. fl Brigham Young Univ. Sci. Bui. Biol. Ser., 9(3): 148, 1968. Paratypes. 1 d", 1 ? ; Grand Canyon. Ariz., 3 Aug. 1917 (H. 11 Knight) . Parthenicus houtalouae Knight. Brigham Young Univ. Sci. Bui. Biol. Ser., 9(3): 154. 1968. Paratype, 1 9 ; Hauchuca Mts.. 6000'. Ariz., 14 June 1928 (A. A. Nichol). On Bouteloua gracilis. Ceratocapsus nevadensis Knight. Brigham Young Univ. Sci. Bui, Biol. Ser., 9(3): 156. 1968. Paratypes. 2 9 ; Nevada Test Site. Nye Co., Nev. (D E. Beck. H. H. Knight and J. M. Merino). Taken on Sphaeralcea. Pilophorus miscosetosus Knight. Brigham Young Univ. Sci. Bui, Biol. Ser.. 9(3): 169. 1968. Paratypes, 1 d" - 1 9 ; Nevada Test Site. Nye Co., Nev. (H. H. Knight and J. M. Merino). Pilophorus merinoi Knight. Brigham Young Univ. Sci. Bui, Biol Ser., 9(3): 175, 1968. Dec. 31, 1969 list oi- insect types 191 Paratypes, 1 ? ; Nevada Test Site, Nye Co.. Nev. ( I i. H. Knij^lit and J. M. Merino). Pilop/iorus i/taht^nsi^ Knight. Bnghani Young Univ. Sci. Bui.. Biol. Ser.. 9(3): 175, 1968. Paratypes. 1 d ■■, Gnd. June. Colo.. 28 July 1900; 1 9; Leeds. Utah. 12 Oct. 1952 (E. W. Davis). Pilophorus nevadensis Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser.. 9(3): 172. 1968. Paratype, 1 cT ; Wells, 15 mi. East, Nev. 12 July, 1965 (H. 11. Knight) . Pilophorus hesperus Knight. Brigham Young Univ. Sci. BuL, Biol. Ser., 9(3): 169. 1968. Paratypes, 1 cf, 1 9 ; Estes Park. Colo.. 24 Aug. 1925 (II. H. Knight). Pilophorus diffusus Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser.. 9(3): 168. 1968. 1 Paratype; Pingree Park, Colo.. 20 Aug. 1923 (C. J. Drake). Pilophorus dislocatus Knight. Brigham Young Univ. Sci. Bui, Biol. Ser., 9(3): 171, 1968. Paratype, 1 9 ; Huachuca Mts., Ariz., 29 July 1905 (L. L. Stitt). Pilophorus salicis Knight. Brigham Young Univ. Sci. BuL. Biol. Ser.. 9(3): 173. 1968. Paratypes, 1 d"; Las Animas, Colo., 6 Aug. 1925 (H. H. Knight). 1 9 . Wray, Colo.. 4 Aug. 1925 (H. H. Knight). Irbisia shulli Knight. Bui. Brook. Ent. Soc, 36:75. 1941. Paratypes, \ d ; Lenore, Ida., 7 May 1938, 1000' (W. E. Shull). 1 9, Lenore, Ida., 7 May 1938, 1000, (W. W. Shull. E. Ritzheimer) . Irbisia fuscipuhescens Knight. Bui. Brook. Ent. Soc, 36:76, 1941. Paratypes, W, 1 9; Tampico, Wash., 10 May 1925 (E. W. Davis). Irbisia elongate Knight. Bui. Brook. Ent. Soc, 36:77, 1941. Paratypes, 1 cT, 1 9; Wen. Mts., Wn., 9 July 1930 (F. P. Dean). Irbisia nigripes Knight. Canadian Ent.. 57:94, 1925. Autotype, Rosevere Creek, Raft River Mts., Utah, June 1928 (D Elden Beck). Pinalitus brevirostris Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 187. 1968. Paratypes, 1 cf ; Trinidad, Colo.. Stonewall 8500', 7 Aug. 1925 (H. IT. Knight). 1 9; Trinidad, Colo., Stonewall 8500'. 8 Aug. 1925 (H. II. Knight). The Great Basin Naturalist 192 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 Pinalitus rubrotinctus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 189, 1968. Paratype, 1 9 ; Mt. Lemon, Ariz., Santa Cat. Mts., July 26, 1917,9000' (H.H. Knight). Dichrooscytus flavescens Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 196, 1968. Paratypes, 2 $ ; New^castel, Wyo., 19 Ang. 1927 (H. H. Knight). 1 cf ; Grand Can., Ariz., 6 Sept. 1931 (H. H. Knight); 1 9 ; Nevada Test Site, Nye Co., Nev. (D E. Beck, H. H. Knight). Dichrooscytus rufivenosus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 196, 1968. Paratypes, IcT. 1 ? ; Pagosa Sprs., Colo., 12 Aug. 1925 (H. H. Knight) . Dichrooscytus ruberellus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 199, 1968. Paratypes, 1 c^, 1 9 ; Pingree Pk:. Colo., 22 Aug. 1925 (H. H. Knight) . Phytocoris flavellus Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser., 9(3):234, 1968. Paratypes, 1 d" , 1 9 ; Nevada Test Site, Nye Co., Nev. (D E. Beck, H. H. Knight, and J. M. Merino). Phytocoris albidosquams Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3):232, 1968. Paratype, 1 cT ; Nevada Test Site, Nys Co., Nev. (D E. Beck). Phytocoris juniperanus Knight. Brigham Young Univ. Sci. Bui, Biol. Ser., 9(3)238, 1968. Paratype, 1 d ; Nevada Test Site. Nye Co., Nev. (H. H. Knight and J. M. Merino). On Juniper us osteosperma. Phytocoris subcinctus Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser., 9(3): 254, 1968. Paratype. 1 cf ; Richfield, Utah, 15 Aug. 1929 (E. W. Davis), Light trap. Phytocoris becki Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 214, 1968. Paratypes. 5 cT cT, 3 9 9; Nevada Test Site, Nye Co.. Nev. (D E. Beck, H. H. Knight, and J. M. Merino). Taken on Ephedra nevadensis) . Phytocoris tanneri Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser.. 9(3): 257, 1968. Paratype, 1 d"; Richfield, Utah, 15 July 1929 (E. W. Davis). Taken at light trap. Phytocorois rostratus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 253, 1968. Paratype, 1 cT ; Nevada Test Site, Nye Co., Nev. H. H. Knight, D E. Beck, and J. M. Merino). Swept from Chrysothamnus nauseosus. Dec. 31, 1969 list of insect types 193 Phytocoris tricintus Knight. Brighani Young Univ. Sci. Bui.. Biol. Ser.. 9(3):256. 1968. Paratype. 1 9; Tucson, Ariz.. 12 May 1929 (E. D. Ball). P/iytocoris rnerinoi Knight. Brigham Young Univ. Sci. Bui.. Biol. Ser., 9(3):227. 1968. Paraty])es. 1 cT, 1 9 ; Nevada Test Site, Nye Co., Nev. (D E. Beck, H. H. Knig'ht and J. M. Merino). Taken on Grayia spinosa. Phytocorius breviatus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3):226, 1968. Paratypes. 1 cT, 3 9 9; Nevada Test Site. Nye Co., Nev. (J. M. Merino) . Taken at black light. Phytocoris deserticola Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3):251, 1968. Paratype. 1 9 ; Nevada Test Site. Nye Co.. Nev. (H. H. Knight). Phytocoris nigrolineatus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3):224, 1968. Paratype, 1 d" ; Nevada Test Site, Nye Co., Nev. (H. H. Knight and J. Merino). Taken on Solazaria mexicana. Phytocoris reticulatus Knight. Brigham Young Univ. Sci. Bui., Biol. Ser., 9(3): 21 7, 1968. Paratypes, 1 cT, 1 9 ; Nevada Test Site, Nye Co., Nev. (Taken from can pit-trap). Sittocapsus franseriae Knight. Entomological News, 53:156, 1942. Paratype, Mohawk, Ariz., April 6, 1927 (Loyd L. Stitt). Bolteria juniperi Knight. Brigham Young Univer. Sci. Bui., Biol. Ser., 9(3):202, 1968. Paratypes, 1 cT ; Nevada Test Site, Nye Co., Nev., 1 9 ; Scipio, Utah, 29 June 1965 (H. H. Knight). FAMILY SALDIDAE Saldula varionis Drake and Hottes. Great Basin Nat., 10(1-4) :57, 1950. Paratypes, 7, 5 from Escalante Desert, Kane Co., Utah (D Elden Beck); 1 from Gateway, Colo., Sept.-Oct. 1949 (F. C. Hottes and C. Drake). ORDER DIPTERA FAMILY TIPULIDAE Erioptera maria Alexander. Amer. Midi. Nat., 39:20, 1948. 19 paratypes; Puffers Lake, Beaver Canyon, Utah; 20 July 1936 (D. Elmo Hardy). Tipula edmundsi Alexander. Amer. Midi Nat., 39:75, 1948. The Great Basin Naturalist 194 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 1 para type; Logan Canyon, Utah Experimental Station; 22 May 1938 (D. Elmo Hardy). FAMILY BIBIONIDAE Bibio knowltoni var. paltidus Hardy. Utah Acad. Sci., Arts and Letters, 14:203, 1937. Holotype d - Provo Environs. Utah; 8 May 1937 (D. Elmo Hardy) . Allotype 5 - Provo Environs. Utah; 8 May 1937 (D. Elmo Hardy). Para type o.. I tal). ^ September 1955 (D. E. Johnson). Allotype - S.E. end of Cedar Mts.. Tooele Co.. ITtah. S Se[)teni- ber 1955 (Sharon Johnson). Exoprosopn arenicola Johnson and Johnson. Great Basin Nat.. 18(3-4): 71, 1958. Holotype and Allotyj)e - Westside Little Granite Mrs., Tooele Co.. Utah, 27 July 1955 (D. E. Johnson). Exoprosopa utahensis Johnson and Johnson. Great Basin Nat.. 18(3-4): 81. 1958. Holotype - Antelope Springs. Millard Co.. Utah. 10 August 1943 (D. E. Johnson). Allotype - S.E. end of Cedar Mts.. Tooele Co.. Utah. 28 August 1955 (D. E. Johnson). Exoprosopa abdominalis Johnson and Johnson. Great Basin Nat. 19(1). 10, 1959. Holotype and Allotype - Weldon, Kern Co.. California; 5 Aug- us"t 1945 (D. E. Johnson). Exoprosopa butleri Johnson and Johnson. Great Basin Nat., 18 (3-4): 74, 1958. Holotype 4 miles East Apache Junction. Arizona; 15 May 1954 (G.D.Butler). Allotype - Sycamore Canyon, Atascosa Mts., Arizona, 22 May 1955 G. Butler) (Senecio longilobus). Oestranthrax farinous Johnson and Maughan. Great Basin Nat., 13: 18. 1953. Holotype and 6 paratypes; Delta. Utah., 5 July (D. E. Johnson). Allotype and 1 paratyi^e; Delta, Utah; 5 July 1943 (D. E. John- son). 2 paratypes - Delta. Utah., 4 July (D. E. Johnson). Conophorus sackenii Johnson and Maughan. Great Basin Nat.. 13:22, 1953. Holotype, allotype and 4 paratypes; Herlong, California, 14 May 1944 (D. E. Johnson). Exepacmus johnsoni Copuillett. Amer. Ent. Soc. Trans., 21 : 101, 1894. 1 Androty]ie cT. Johnson and Johnson. Inyokern. California. 28 April 1945 (D. E. Johuson). Lordotus lutcelus Hall. Calif. Univ. Pubs. Ent.. 10:26. 1954. 2 paratypes; Walkers Pass. California, 16 September 1945 (D. E. Johnson). Lordotus miscellus melanosus Johnson and Johnson. Great Basin Nat.. 19:24. 1959. Holotvpe, Allotype and 9 parat\i^es; Holotype. .\llotv]>e - Little Granite Mt., Tooele Co., Utah; 14 Sept^ember 1957 (D. E. Johnson). 3 paratypes - same except 11 September 1956. 3 - The Great Basin Naturalist 200 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 para types - same except 7 September 1956. 2 - Dog Area, Dugway Pr. Grounds, Tooele Co., Utah, 12 September 1955 (D. E. Johnson) Field #44. 1 - same except 31 August 1955 Field #38. Lordotus lutescens Johnson and Johnson. Great Basin Nat., 19(1): 15. 1959. 6 para types; Las Cruces. New Mexico; 25 April 1954 (R. H. Beamer) . Lordotus cinqulatus lineatus Johnson and Johnson. Great Basin Nat.. 19(1) :22. 1959. Holotype, Allotype and 2 paratj^Des; Ten miles E. San Quintin, Mexico. Baja California; 10 September 1955 (Paul H. Arnaud) . Lordotus perplexus Johnson and Johnson. Great Basin Nat., 19(1): 16. 1959. Holotype and Allotype; Rillite, Arizona; 20 March 1934 (A. J. Basinger). Lordotus apicula Coquillett. Ent. Amer., 3:116, 1887. Homotype and Plesiotype; Skull Valley. Tooele Co., Utah; 31 May 1956 (D. E. Johnson). One Pleisotype - Skull Valley, Tooele Co.. Utah; 9 June 1957 (D. E. JohnsonV Lordotus abdominalis Johnson and Johnson. Great Basin Nat., 19(1): 10. Holotype - Tucson. Arizona; 24 April 1954 (F. G. Warner). Allotype - West of Standfield. Arizona; 11 April 1955 (Butler and Werner). Lordotus arizonensis Johnson and Johnson. Great Basin Nat.. 19(1 ) : 19, 1959. Holoty]:)e - Sabino Canyon, Santa Catalina Mts., Arizona; 17 October 1955 (G. D. Butler). Lordotus cingulatus Johnson and Johnson. Great Basin Nat.. 19(1 ):21. 1959. 5 paratypes; 17 miles north of Wolf Hole, Mohave Co.. Arizona; 9 September 1958. Lordotus sororculus nigriventris Johnson and Johnson. Great Basin Nat.. 1 9 ( 1 ): 1 7. 1 959. Holotype. Allotype, and 8 paratypes; Holotype. Allotype and 1 para type - Skull Valley, Tooele Co.. Utah; 13 May 1956 (D. E. Johnson). 1 para type - same except 3 IMay 1956. 1 para- type - same except 18 May 1958. 2 paratypes - same except 2 June 1957. 1 paratype - Dugway Mts.. Juab Co.. Utah; 25 May 1958 (D. E. Johnson). 2 paratypes - Wig Mts.. Dugway Pr. Grounds. Tooele Co., Utah; 23 April 1956 (D. E. John- son). Poecilanthrax johnsonorum Painter and Hall. Kans. Agr. Expt. Sta. Tech. Bui.. 106:69. 1960. Dec. 31. 1969 list of inskct types 201 Holotype and Allotype:; Little (iranite Mt.. Tooolo Co.. I'tah; 14 September 1957 (D. E. Johnson). Poecilanthrax hyalinipcnnis Painter and Hall. Kans. Agr. Expt. Sta. Tech. Bui.. 10b: ()4. 19(i(). 4 paratypes. 3 - Little Granite Mt.. Tooele Co.. Utah; 14 Sep- tember 1957. 1 - Little Granite Mt.. Dugway Pr. Grounds. looele Co.. Utah; 15 September 1955 (D. E. Johnson) Field #45. Poecilanthrax apache Painter and Hall. Kans. Agr. Expt. Sta. Tech. Bui.. 106:31. 1960. 2 paratypes; Tucson, Arizona; 15 October 1955 (F. G. Werner) {Baccharis sarotJiroides) . Poecilanthrax painteri Maughan. Kans. Ent. Soc. Jour.. 8:56-57. 1935. Allotype and 3 paratypes; Allotype and 1 paratype - Blacksmith Fork Canyon, Cache Co., Utah. 20 June 1944 (D. E. Johnson; 2 paratjT^es - Lava Hot Springs, Idaho. 27 June 1948 (D. E. Johnson). Poecilanthrax alpha zionensis Johnson and Johnson. Great Basin Nat.. 17 (1-2): 6. 1957. Holotype - Zion National Park. Utah, 8 July 1932 (D. E. John- son). Lordotus cingulatus rufotibialis Johnson and Johnson. Great Basin Nat, 19:23, 1959. Holotype and Allotype; Phoenix, Arizona, 29 September 1940 (Parker). Conophorus hiltoni Priddy. Kans. Ent. Soc. Jour., 31:24, 1958. Holotype. Allotype and 2 paratypes; Herlong, California, 14 May 1944 (D. E.Johnson). Conophorus collini Priddy. Kans. Ent. Soc. Jour., 31:31. 1958. 1 paratype; Oceano, S. Luis Obispo Co., California, 24 April 1951 (R. M. Bohart). Conophorus painteri Priddy. Kans. Ent. Soc. Jour., 31:12, 1958. Holotype. Allotype and4 paratypes; American Fork Canyon. Utah. 4 July 1953 (D. E. Johnson); 1 paratype - .^spen Grove, Utah Co., Utah, 19 July (D. E. Johnson). Amphicosmus arizonensis Johnson and Johnson. Great Basin Nat.. 19:67. 1960. Holotype and Allotype; Tucson Mts.. Arizona; 16 August 1955 (G. D. Butler). DicranocUsta fasciata Johnson and Johnson. Great Basin Nat., 19:71, 1960. Holotype; Cedar Creek, Arizona; 15 miles West of Fort Apadie. The Great Basin Naturalist 202 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 21 June 1957 (G. Butler and F. Werner). Allotype; Provo, Utah Co., Utah. July 1933 (D. E. Johnson). Villa utahensis Maughan. Kans. Ent. Soc. Jour.. 8:51. 1935. 2 paratypes; Provo, Utah; 29 April 1934 (D. E. Johnson). 1 metatype; Provo environs, Utah (D. E. Johnson). FAMILY DOLICHOPODIDAE Dolichopus indianus Harmston and Knowlton. Amer. Midi. Nat.. 36:672, 1946. 1 paratype; Indianapolis, Indiana; 7 March 1943 (F. C. Harms- ton). 1 paratype; Indianapolis. Indiana; 7 March 1943 (F. C. Harm- ston). Medeterus arnaudi Harmston. Great Basm Nat, 11 (1-2): 12, 1951. cT paratype; Redwood City, California, San Mateo Co.; 4 June 1946 (PaulH. Amaud). Aphrosylus ivirthi Harmston. Great Basin Nat., 11 (1-2): 13, 1951. 1 paratype; Moss Beach. San Mateo Co.. California; 21 March 1948 (W. W. Wirth) (Intertidal rocks). FAMILY PIPUNCULIDAE Chalarus latifrons Hardy. Kans. Univ. Sci. Bui., 29:33, 1943. 6 parat>^)es; 3 - Austin. Nevada; 12 August 1940 (R. H. Beamer, D. E. Hardy). 1 - Cloudcroft, New Mexico; 27 June 1940 (R. H. Beamer); 1 - Ruidoso. New Mexico; 26 June 1940 (R. H. Beamer). 1 - Pacific, California; 9 August 1940 (D. E. Hardy) . Tomosvaryella tumida Hardy. Kans. Ent. Soc. Jour., 13:112. 1940. 2 paratypes; Belle Glade, Florida; 18 July 1939 (R. H. Beamer). Tomosvaryella xerophila Hardy. Kans. Univ. Sci. Bui., 29:188, 1943. 2 paratypes; 1 - Cuervo. New Mexico; 23 June 1940 (L. C. Kuitert). 1 - Rustler's Peak, Chiricahua Mts., Arizona; 5 July 1940 (D. Elmo Hardy). Tomosvaryella tumida Hardy. Kans. Ent. Soc. Jour.. 13:112. 1940. 1 paratype; Belle Glade, Florida; 18 July 1939 (R. H. Beamer). Tomosvaryella lepidipes Hardy. Kans. Univ. Sci. Bui. 29:166, 1943. 4 paratypes; 2 - Garnett. Kansas; 22 September 1940 (D. Elmo Hardy). 1 - Maybell. Colorado; 18 August 1940 (R. H. Dec. 31, 1969 list of inskct typks 203 Bonnier). 1 - Yosemite National Park. California; 1 .\ii^ust 1940 (D. Elmo Hardy). TomosvarycUa heomcri Hardy. Kans. Ent. vSoc. Jour., 13:107, 1940. 1 para type; Cherokee Co.. Kansas; 30 August 1939 (R. H. Beamer) . Tomosvaryella jloridensis Hardy. Kans. Ent. Soc. .Tour.. 13:109, 1940. 1 cf paratype; Adel, Ga.; 11 August 1939 (J. D. Beamer). Tomosvaryella wilburi Hardy. Kans. Ent. Soc. Jour.. 12:22, 1939. 1 paratype, 8 metatypes; paratype - Manhattan, Kansas; 13 August 1937 (D. A. Wilbur). 3 metatypes - Tonganoxie. Kansas; 6 May 1939 (D. Elmo Hardy). 4 metaypes - Cherokee Co.. Kansas; 30 August 1939 (R. H. Beamer). 1 metatype - Lawrence. Kansas; 22 August 1939 (D. Elmo Hardy). Tomosvaryella coquilletti coquilletti (Kertesz). Tomosvaryella proxima Cresson. Amer. Ent. Soc. Trans., 36:318, 1911. 3 homotypes; Tonganoxie. Kansas; 6 May 1939 (R. H. Beamer) by D. Elmo Hardy. Tomosvaryella similis Hough. Boston Soc. Nat. Hist. Proc. 29:84, 1899. 2 homotypes; Garnett, Kansas; 29 August 1939 (R. H. Beamer) compared by D. Elmo Hardy. Tomosvaryella contorta Hardy. Kans. Ent. Soc. Jour., 12:18. 1939. 10 metatypes; 1 - Onyx, Cahfornia; 23 August 1940 (D. Elmo Hardy). 1 - Onyx, California; 23 August 1940 (R. H. Beamer). 1 - Kernville, California; 24 August 1940 (R. H. Beamer). 3 - Tonganoxie, Kansas; 6 May 1939 (D. Elmo Hardy). 2 - Garnett, Kansas; 29 August 1939 (J. D. Beamer). Tomosvaryella subvirescens Loew. BerHn Ent. Ztschr., 16:87. 1872. 7 homotypes; 1 - Toganoxie, Kansas; 6 May 1939 (D. Elmo Hardy). 2 - Toganoxie, Kansas; 3 September 1939 (R. H. Beamer). 4 - Douglas Co., Kansas; 23 August 1939 (R. H. Beamer) compared by D. Elmo Hardy). Tomosvaryella exilidens Hardy. Kans. Ent. Soc. Bui., 29:162, 1943. 2 para types; 1 - Moriarty, New Mexico; 24 June 1940 (E. E. Kenaga). 1 - Sunnyside Canyon, Huachuca Mts., Arizona; 9 July 194- (D. Elmo Hardy). Tomosvaryella turgida Hardy. Kans. Ent. Soc. Jour., 13:113, 1940. The Great Basin Naturalist 204 V. M. TANNER AND D. R. HARRIS Vol. XXIX, No. 4 2 para types; Griffin, Georgia; 12 August 1939 (R. H. Beamer, A. T. Hardy). Tomosvaryella agnesea Hardy. Kans. Ent. Soc. Jour.. 13:103, 1940. 2 para types and 4 meta types; Para types, 1 - Manhattan, Kansas, 15 June 1943 (D. A. Wilbur). 1 - Douglas Co., Kansas; 23 August 1938 (R. H. Beamer). Metatypes, 1 - Glasco, Kansas; 24 August 1940 (E. E. Kenaga). 1 - Arivaca, Arizona; 12 July 1940 (R. H. Beamer). 1 - Kernville, California; 24 July 1940 (R. H. Beamer). 1 - Onyx, California; 23 July 1940 (D. Elmo Hardy). Tomosvaryella dissimilis Hardy. Kans. Univ. Sci. Bui.. 29:161. 1943. 2 paratypes; 1 cf - Chiricahua Mts.. Arizona; 4 July 1940 (D. Elmo Hardy). 1 - Bishop, CaHfornia; 28 July 1940 (L. C. Kuitert) . Tomosvaryella aliena Hardy. Kans. Ent. Soc. Jour., 20:146-153, 1947. New name for propinqua Hardy. Kans. Univ. Sci. Bui.. 29: 169. 1943. 5 paratypes; 1 - Goshen. Utah; 16 August 1940 (R. H. Beamer). 2 - Goshen. Utah; 16 August 1940 (L. C. Kuitert). 1 - Fruita, Colorado; 4 September 1938 (D. Elmo and A. Hardy). 1 - Lone Pine, California; 28 July 1940 (R. H. Beamer). Tomosvaryella quadradentis Hardy. Kans. Univ. Sci. Bui.. 29:172, 1943. 3 paratypes; 2 - Carson City, Nevada; August 1940 (D. Elmo Hardy). 1 d - Silver Lake, Kansas; 24 August 1940 (L. J. Lipovsky). Tomosvaryella brevijuncta Hardy. Kans. Univ. Sci. Bui., 29:155, 1943. 1 paratype; Palm City, California; 19 July 1940 (R. H. Beamer). Dorylomorpha tridentata Hardy. kans. Univ. Sci. Bui., 29:141. 1943. 2 paratypes; 1 - Lake Tahoe, California; 11 August 1940 (R. K, Beamer). 1 - Lake Tahoe, California; 11 August 1940 (D. Elmo Hardy). Pipunculus nevadensis Hardy. Kans. Univ. Sci. Bui.. 29: 106. 1943. 1 paratype; Fallon, Nevada; 12 August 1940 (E. E. Kenaga). Pipunculus huachueanus Hardy. Kans. Univ. Sci. Bui., 29:95, 1943. 2 paratypes; 1 - Sunnyside Canyon, Huachuca Mts., Arizona; 9 July 1940. (R. H. Beamer). 1 - Sunnyside Canyon, Huachuca Mts., Arizona; 9 July 1940 (D. Elmo Hardy). Pipunculus cinctus subtilis Hardy. Kans. Univ. Sci. Bui., 29:84, 1943. Dec. 31, 1969 list of inskct types 205 1 i)aratype; Pingree Park. Calorado; 11 July 1937 (C. L. John- ston). Pipunculus kansetisis Hardy. Kans. Ent. Soc. Jour., 13:102, 1940. 2 paratypes; 1 - Tekio, North Dakota; 28 July 1937 (C. L. Johnston). 1 - Douglas Co.. Kansas; 25 August 1939 (R. H. Beamer) . Pipunculus alhofascintus Hough. Boston Soc. Nat. Hist. Proc. 29:85. 1899. 3 honiotvpes; 2 - Garnett, Kansas; 29 August 1939 (R. H. Beamer). 1 - Clarksville. Tenn.; 15 July 1939 (D. Elma Hardy) compared by D. Elmo Hardy. Pipunculus cingulatus Loew. Berlin Ent. Ztschr. (1865), 9:176, 1866. 2 homotypes; Tangonoxie, Kansas; 6 May 1939 (D. Elmo Hardy) compared by D. Elmo Hardy. FAMILY CHLOROPIDAE Oscinella hesperia Sabrosky. Canadian Ent., 72:219, 1940. 4 paratypes; Spanish Fork, Utah Co., Utah (D. Elmo Hardy). ORDER HYMENOPTERA FAMILY SCOLIIDAE Campsomeris solomonis Krombein. Nova Guinea (Zool.) No. 22:570. 1963. 2 paratypes; Solomon Islands, Guadalcanal; 1944 (Ernest Reim- schiissel). Scolia pulchripennis franclemonti Krombein Nova Guinea (Zool.) No. 22:636, 1963. 1 paratype; Solomon Islands, Guadalcanal; 1944 (D E. Beck). 206 INDEX TO VOLUME XXIX The new genera, species, and varieties in this volume appear in bold type in this index. A New Genus and Species of Ori- batid Mite (Acari: Liacaroidea, Metrioppiidae), p. 137. A New Species of Liacarus from a Wood Rat Nest (Acarina: Crypto- stigmata, Liacaridae), p. 140. A New Species of Oppia from Colo- rado (Cryptostigmata; Oppiidae), p. 133. A Note on Geranium richardsonii Fisch. & Trautv., p. 25. Acmaeodera diffusa, p. 13. Alexander, Charles P., Article by, p. 1. AUred, Dorald M., Articles by, pp. 20, 42, 105. An Albino Pacific Tree Frog, Hyla regilla, from Death Valley, Cali- fornia, p. 111. Andersen, Ferron L., Keith H. Hoopes, and J. Carl Fox, Article by, p. 35. Barr, WiUiam F., Article by, p. 11. Barr, William F., and Richard L. Penrose, Article by, p. 88. Bees of the Nevada Test Site, p. 20. Chramesus minulus, p. 126. Chramesus vitiosus, p. 125. Cryptantha shackletteana, p. 28. Cryptantha subgenus Oreocarya (Greene) stat. nov., p. 30. Does Vireo gilvus swainsonii Occur in Utah?, p. 181. Ellis, David H., Dwight G. Smith, and Joseph R. Murphy, Article by, p. 165. Flake, Lester D., and Clive D. Jor- gensen, Article by, p. 143. Fossil Chelonians, Chrysemys and Clemmys, from the Upper Plio- cene of Idaho, p. 82. Fox, Carl J., Ferron L. Andersen, and Keith H. Hoopes, Article by, p. 35. Froeschner, Richard C, Article by, p. 129. Ghiselin, Jon, Article by, p. 109. Gonomyia (Odiocera) persimplex, p. 9. Harris, Don R., and Vasco M. Tan- ner, Articles by, pp. 150, 183. Higgins, Harold G., and Tyler A. Woolley, Article by, p. 140. Higgins, Larry C, Article by, p. 28. Hoopes, Keith H., Ferron L. Ander- sen, and J. Carl Fox, Article by, p. 35. Individual Rodent Movements in Upper Sonoran Desert of Central Nevada, p. 109. Invasion of a "Trapped-Out" South- ern Nevada Habitat by Perog- nathus longimembris , p. 143. Itzkowitz, Murray, and W. L. Minck- ley, Article by, p. 169. Jorgensen, Clive D., and John W. Leetham, Article by, p. 96. Jorgensen, Clive D., and Lester D. Flake, Article by, p. 143. Kay, Fenton R., Article by, p. 111. Leetham, John W., and Clive D. Jor- gensen, Article by, p. 96. Lepidoptera of the Nevada Test Site, p. 42. Liacarus lectronus, p. 140. List of the Insect Type Specimens in the Entomological Collection of the Brigham Young University, Provo, Utah, No. Ill, p. 150. List of the Insect Type Specimens in the Entomological Collection of the Brigham Young University, Provo, Utah, No. IV, p. 183. Metapyroppia doratosa, p. 137. Metapyroppia, n. gen., p. 137. Minckley, W. L., and Murray Itz- kowitz, Article by, p. 169. Morris, Ronald L., and Wilmer W. Tanner, Article by, p. 45. Murphy, Joseph R., David H. Ellis, and Dwight G. Smith, Article by, p. 165. 207 New Combinations and a New Spe- cies of Perennial Cryptantha, p. 28. New Records and Distributional Notes for Reptiles of the Nevada Test Site, p. 31. New Synonymy and Records of Platypodidae and Scolytidae (Cole- optera), p. 113. Notes on the Distribution and Bio- nomics of Some Idaho Ceramby- cidae (Coleoptera), p. 88. Oppia coloradensis, p. 133. Overwintering Phytoseiid Mites in Central Utah Apple Orchards, p. 96. Penrose, Richard L., and William F. Barr, Article by, p. 88. Phloeotribus destructor, p. 124. Phloeotribus furvus, p. 124. Phloeotribus quercinus, p. 123. Pseudohylesinus pini, p. 122. Qualitative Behavior of a Pupfish (Cyprinodon atrorus) in Differing Environments, p. 169. Smith, Dwight G., David H. Ellis, and Joseph R. Murphy, Article by, p. 165. Spiders of the National Reactor Testing Station, p. 105. Stragulotingis, n. gen., p. 130. Studies on Raptor Mortality in West- ern Utah, p. 165. Tanner, Vasco M., and Don. R. Har- ris, Articles by, pp. 150, 183. Tanner, Wilmer W., Article by, p. 31. Tanner, Wilmer W., and Ronald L. Morris, Article by, p. 45. The Buprestidae and Cleridae of the Nevada Test Site (Coleoptera), p. 11. The Ecology of the Western Spotted Frog, Rana pretiosa pretiosa Baird and Girard, A Life History Study, p. 45. The Efficacy of Haloxon and Thiabendazole as Anthelmintics Against Gastro-Intestinal Nema- todes in Sheep, p. 35. The Infection of Immature Aquatic Insects by Larval Paragordius (Nematomorpha) Tipula ( Arctotipulaj denali, p. 2. Tipula (Arctotipula) epios, p. 3. Tipula (Arctotipula) mckinleyana, p. 4. Tipula (Eremotipula) eurystyla, p. 8. Tipula (Platytipula) knowltoniana, p. 5. Tipula (Sinotipulaj denningi, p. 7. Undescribed Species of Nearctic Tipulidae (Dipteral. X, p. 1. Van Cott, John W.. Article by. p. 25. Wislouchiella planctonica Skvortz (Chlorophyta, Volvocales), A New Algal Record for Nevada, p. 43. Wood, Stephen L., Article by. p. 113. Woolley, Tyler A., Articles by, pp. 133, 137. Woolley, Tyler A., and Harold G. Higgins, Article by, p. 140. Worthen, Gary L., Article by. p. 181 Zoogeographic and Systematic Notes on the Lace Bug Tribe Litadeini, with the Description of the New Genus Stragulotingis (Hemiptera: Tingidae). p. 129. Zug, G. R., Article bv, p. 82. III! Ill 3 2044 072 23 iitiii 095