H. F. WICKHAM. 171 



Basin. The original description cites Great Salt Lake, hut Mr. J. 

 D. Putnam, who claims to have collected the specimens and to have 

 sent them to Mr. Ulke, says (Proc. Davenport Acad. Sci., i, p. 201), 

 that he took them on the shores of Utah Lake. I have since found 

 it at the last named point, in June; Clear Lake Station, Utah, 

 common the first of July ; Milford, Utali, one or two in July ; 

 Little Salt Lake, near Parowan, Utah, many under rubbish on the 

 mud flats near the lake, in August; Humboldt Lake and Lovelock, 

 Nevada, a few in June ; and in great abundance under rubbish and 

 caked mud along the beaches of Great Salt Lake, where it was also 

 taken in numbers by i\Ir. Schwarz during June and July. 



T. (lensiis Casey. — Narrow, subdepressed, opaque, above nifotestaceous, 

 darker than salicola, underside of meso- and metatborax and abdomen black. 

 Pygidium black. Elytra with postmedian black band expanded on the sides 

 and extending around the apex. Pubescence rather sparse. Head subquadrate, 

 basal impression distinct. Elytra subparallel, tips subtruncate, exposing more 

 or less of the pygidium. disk minutely finely densely punctate, with intermixed 

 craterform punctures in both sexes, pubescence longitudinally directed. Length 

 3 mm., a little more or less. 



My first inclination was in the direction of suppressing this name, 

 the series of salicola showing .some evident tendencies towards inter- 

 gradation. On further consideration I have considered it unwi.se to 

 do so, the typical specimens are so very different in appearance from 

 salicola and readily separable at sight. 



I have specimens, all of my collecting, from Saltair, Milford, 

 Utah Lake, Sevier Lake, Clear Lake and Little Salt Lake, in Utah; 

 and from Humboldt Lake, Nevada. It seems much less abundant 

 than salicola, though associated with it. 



T. infernalis n. sp. — Narrow, subdepressed, parallel, distinctly and (for 

 this genus) strongly shining, yellowish testaceous, the head and prothorax 

 slightly rufescent. Head subquadrate, truncate at base, median basal impression 

 short, tempora subparallel, slightly arcuate and about as prominent as the eyes; 

 surface reticulate and with shallow variolate punctures, separated on the vertex 

 by spaces approximately equal to or slightly less than their own diameters. An- 

 teunse with the eleventh joint equal to the ninth and tenth together, constriction 

 deep, basal portion shorter. Prothorax narrowei' than the head, of much the 

 usual form, but the sides in front of the middle are less bulging than in salicola, 

 punctuation similar to that of the head but a little stronger and closer; collar 

 and basal marginal line strong. Elytra dehiscent, broader than the prothorax, 

 sides subparallel, apices subtruncately rounded, leaving the pygidium exposed • 

 pubescence short, sparse, longitudinally disposed. Craterform punctures shal- 



TEANS. AM. KNT. SOC. XXXII. JUNE. 1906. 



