﻿248 LE CONTE.— SYNOPSIS OF THE 



the characters of the present genus. Body uniform shining brownish red ; head flat, 

 densely punctured in front, convex and less densely on the vertex, with the occiput 

 smooth ; clypeus finely margined, moderately emarginate ; antennae pale, 10-jointed. 

 Thorax about one-half wider than the head, nearly twice as wide as long, much 

 rounded on the sides, narrowed in front, and somewhat narrowed towards the base ; 

 moderately convex, with large scattered punctures along the sides, margins and middle, 

 leaving a space each side in front free from punctures. Elytra hardly wider than the 

 thorax, rugosely punctured in front, sparsely punctured behind, with the sutural ridge 

 very strong, but the dorsal ones obsolete. Pygidium very sparsely punctulate. Breast 

 clothed with very short hair. Abdomen convex, smooth in the middle, punctured 

 at the sides, especially the penultimate segment : the latter impressed transversely 

 at the middle towards the posterior margin. Tibiae not at all hairy; spurs of posterior 

 tibiae equal, slender ; ungues armed with a long tooth. 



23. L. lugubris, tota nigro-picea, nitida, subovata convexa, clypeo emarginato, capite antice confertim 

 postice convexo et parce punctato, thorace lateribus rotundatis, ante basin sublatiore, parce fortiter 

 punctato spatio transverso antico lsevi, elytris subtiliter punctatis vix obsolete costatis, pygidio parce 

 punctulato, pectore breviter villoso, unguiculis (5 ) dente longo armatis. Long. «62. 



Two females from New York. More ovate and less slender than the preceding, 

 entirely of a blackish brown, almost black above and shining. Head flat and densely 

 punctured in front, convex and sparsely punctured behind, clypeus finely margined, 

 emarginate ; thorax* twice as wide as the head, fully twice as wide as long, rounded 

 on the sides, slightly narrowed at the base, sparsely and coarsely punctured, with a 

 transverse smooth space before the middle. Elytra a little wider than the thorax, 

 finely punctured ; each puncture supports a very minute hair; the sutural costa is very 

 strong, and there are some faint traces of the dorsal ones. Propygidium nearly smooth, 

 pygidium finely sparsely punctulate. Breast with short not dense yellowish hair. 

 Abdomen convex, smooth in the middle, finely punctured at the sides, but more 

 coarsely on the two last segments, penultimate joint margined behind at the middle. 



24. L. cognata, supra fusca, vel nigro-fusca, subtus ferruginea nitida, oblonga, clypeo emarginato, 

 capite dense punctato, tborace lateribus rotundatis, postice perparum angustato, fortius subasqualiter 

 punctato, elytris punctatis rugosis subcostatis, pygidio parce punctato, pectore flavo-villoso, unguicu- 

 lis dente longo armatis. Longo. -60 — 72. 



? Ancylcmycha cognata Burm. Lamell. 2, 2d, 323. 



Common in the Middle and Southern States. The only satisfactory difference I 

 find between this and the next species is in the form of the thorax, which is here 

 much more rounded on the sides, and slightly narrowed at the base. The other dif- 

 ferences noted by Burmeister, such as the greater concavity of the clypeus, the longer 

 hair of the pectus, and the finer punctures of the pygidium I do not find constant ; 

 but fearing not to possess his species I have placed a query to the reference. 



