STAPHYLINID/E. 185 



Gastrolobium Csy. 



Gastrolobium subatrum n. sp. Rather stout, moderately convex, shining, 

 nearly black to dark piceo-rufous, the apex of each abdominal segment, 

 particularly the fifth and sixth, paler; head rather large, as wide as the elytra, 

 the sides behind the eyes parallel for a short distance, thence broadly round- 

 ing and converging to the base, the surface deeply and rather closely but 

 only moderately coarsely punctate; prothorax a fourth to nearly a third 

 longer than wide, moderately punctate; elytra large, longer than wide, 

 rather closely and deeply but not very coarsely punctate; abdominal punc- 

 tures deep but somewhat small and close-set; male with a large transverse 

 and strongly fimbriate fold at the middle of ventrals two and three, the 

 lobe of the third long, rounded at tip, bristling with long dark hairs. Length 

 9.5-10.0 mm.; width 1.35-1.55 mm. Tennessee. 



Allied to floridanum but with much less coarse sculpture, larger 

 and more parallel head and rather different abdominal coloration. 

 In virginicum the punctuation is much coarser, and the sides of the 

 head are straight and parallel for a long distance behind the eyes. 



Lathrotaxis Csy. 



Lathrotaxis expressa n. sp. Moderately stout and convex, shining, deep 

 and clear testaceous, the head and abdomen black, the latter with the fifth 

 segment, except at base, and the sixth, pale; head parallel, abruptly arcuato- 

 truncate at base, with sparse perforate punctures, the eyes and antennae 

 moderate; prothorax subparallel, slightly elongate, as wide as the head, 

 rather strongly and irregularly punctate, with a broad smooth median line; 

 elytra parallel, much wider and longer than the prothorax, longer than wide, 

 with distinct and strongly impressed series of unusually coarse punctures 

 throughout the width, and but little smaller and more confused apically; 

 abdomen narrower than the elytra, shining, finely, not densely punctate. 

 Length ( 9 ) 7.0 mm. ; width 0.9 mm. Arizona (Winslow), Wickham. 



Allied to rubricollis, from Montana and Utah, and formerly con- 

 founded therewith, but with the elytral punctures and impressed 

 lines much coarser. 



Lathrotaxis canora n. sp. Form somewhat as in the preceding but less 

 shining, pale flavate throughout, the abdomen without trace of infuscation, 

 the head and prothorax rather darker and more testaceous; head large, the 

 basal angles rather broadly rounded, the eyes larger; punctures strong, 

 much closer than in expressa and rubricollis; prothorax slightly narrower than 

 the head, distinctly elongate, the punctures numerous and unevenly dis- 

 tributed, the smooth median line relatively narrower than in expressa; elytra 

 parallel, only slightly wider than the head, evidently longer than wide, the 

 series not much impressed and with the punctures very moderate in size 

 and rather feeble, close and confused apically; abdomen rather dull in lustre, 

 finely and closely punctate. Length (9) 6.2 mm.; width 0.9 mm. Arizona 

 (East Bridge), Wickham. 



