304 Coleopterological Notices, V. 



California (Lake Tahoe and Truckee). 



A much smaller species than laticoUis, Avith more rounded apical 

 angles of the prothorax and somewhat longer elytra ; the pronotal 

 sculpture is coarser than in angvstiventris. 



ISOGLOSSA n. gen. 



Body rather stout, subfusiform, convex. Head small, not at all 

 constricted at base, well inserted, the eyes large, sparsely setose, at 

 less than their own length from the base ; labrum very short, trans- 

 versely arched and feebly produced in the middle in a rounded lobe • 

 infralateral carina strong. Antennae long, very feebly incrassate, 

 the first three joints long, subequal in length ; fourth feebly obconi- 

 cal, longer than wide; outer joints moderately close, scarcely visibly 

 wider than long; eleventh conoidal, pointed, barely as long as the 

 two preceding. Mentum large, transversely trapezoidal, truncate; 

 ligula with a slender deflexed and simple terminal process; labial 

 palpi slender, three-jointed. Maxillary palpi normal, the fourth 

 joint long and distinct. Prothorax feebly transverse, the basal 

 angles rounded ; hypomera subhorizontal, in part visible from the 

 side. Elytra large and well developed. Abdomen feebly narroAved 

 from the base, the first three segments impressed at base; fifth 

 longer than the fourth. Anterior coxae very large ; intermediate 

 almost completely contiguous. Metasternum large, the side-piece.s 

 moderate in width, parallel, not extending beyond the elytra. Legs 

 long ; tibiae densely clothed with even and equal stiff inclined setae, 

 not in the least spinulose; tarsi 5-5-5-jointed, slender, the posterior 

 distinctly shorter than the tibiae, with the basal joint very long, 

 equal to the last and rather longer than the next two together ; 

 claws long, slender, feebly arcuate. 



The feeble inflexion of the hypomera seems to ally this genus to 

 Thiasophila and Stichoglossa, particularly the latter, but the antenme 

 are much more elongate and the sculpture and facies very diiferent. 



I. arciiata n. sp. — StovU, polished througliont, dark piceous-browii, the 

 antennPB concolorous but paler toward base ; abdomen black, with the apices 

 of the first three segments slightly pale ; legs pale Havate throughout ; head 

 and pronotum very minutely, extremely sparsely punctate, the elytra rather 

 more reticulate, the reticulations transverse, more strongly, rather closely 

 punctate ; abdomen finely, not densely punctate, the punctures extremely re- 

 mote toward apex ; head, pronotnm and abdomen coarsely, extremely sparsely 

 pubescent, the elytra more finely and decidedly densely so. Head barely 



