Coleopterological Notices, VI. 711 



densely punctate, ■without a distinct smooth line, broadly truncate and ohso- 

 letely impressed at base, the an<iles rounded but rather distinct; tempora 

 parallel ; anteunne slender, feebly incrassixte, nearly as long as the head and 

 prothorax, the tenth joint fully as long as wide. Prothorax but slightly nar- 

 rower than the head, about as long as wide, somewhat strongly rounded and 

 widest at apical fourth, the sides thence feebly convergent and just visibly 

 arcuate to the extreme base, the margin flat and feebly defined; punctures 

 moderate in size, deep, perforate, very dense and cribrate. Elytra three-fourths 

 longer than wide, not quite twice as wide as the prothorax, the sides parallel, 

 evenly and distinctly arcuate; apex not broadly rounded; humeri well exposed 

 at base; omoplates subobsolete; punctures deep and very dense, moderately 

 large. Abdomen shining, finely deeply and closely punctate, the apices of the 

 segments finely impunctate. Legs moderate in length, the femora somewhat 

 stout. Length 3.0 mm.; width 0.85 mm. 



New Mexico (Cooliclge). Mr. Wickham. 



The peculiar form of the prothorax, which in this and the two 

 succeeding species reminds us somewhat of Tacusus, will render 

 the identification of them comparatively eas3'. The present form 

 differs from ancilla in its much larger size, and in other characters 

 which will be noted below. 



30. A. ancilla n. sp. — Somewhat convex, moderately stout, feebly 

 shining, black throughout, the legs rufo-piceous distally; antennae dark rufo- 

 testaceous throughout ; pubeseuce somewhat short, plumbeo-cinereous , moder- 

 ately dense. Head slightly wider than long, densely and deeply but not very 

 coarsely perforato-punctate, the smooth line slighth' visible anteriorly; base 

 broadly tmincate, feebly impressed; angles distinct but rounded; tempora par- 

 allel ; eyes rather small but prominent; antennae small, slender, shorter than 

 the head and prothorax, feebly incrassate, the tenth joint quadrate. Prothorax 

 slightly narrower than the head, as long as wide, convex, widest and rather 

 strongly rounded at apical fourth, the sides thence moderately convergent and 

 broadly arcuate to the basal margin ; punctures fine but deep, perforate and 

 somewhat dense. Elytra two-thirds longer than wide, distinctly less than 

 twice as wide as the prothorax, parallel and feebly arcuate at the sides, the 

 apex broadly and obtusely rounded; humeri broadly rounded to the prothorax, 

 moderately exposed; disk decidedly convex, not coarsely but deeply, rather 

 closelj- punctate, the interspaces polished; omoplates scarcely visible. Abdomen 

 finely but deeplj', rather closely punctixte, not densely pubescent, the legs 

 somewhat short, the femora moderately stout. Length 2.5 mm.; width 

 0.7 mm. 



Nevada (Elko). Mr. Wickham. 



The sex of the type is not determined. Ancilla is an all}- of 

 pa?'aUelus, but differs in its smaller size, more convex surface, 

 shorter antennae, smaller and less prominent e^'es and black color. 



