COLEOPTERA. 127 



strongly convex and very strongly declivous toward the apical angles. 

 Elytra at base scarcely as wide as the pronotum ; sides rather feebly diver- 

 gent and almost straight ; disk rather depressed, one-fourth longer than 

 wide and very slightly longer than the pronotum, polished, very finely 

 feebly and sparsely punctate, punctures aggregated near the suture, and 

 having a distinctly linear arrangement near the flanks, middle portions 

 impunctate. Abdomen at base very slightly narrower than the elytra ; 

 sides nearly parallel and very slightly arcuate ; border narrow and nearly 

 vertical ; surface sub-cylindrically convex, polished, just visibly reticulate, 

 sparsely very minutely and evenly punctulate. Legs rather slender, dark 

 rufous; anterior tarsi but very slightly swollen. Length 3.9 mm. 



Cape May, New Jersey, 1. 



The frontal grooves are long and well developed ; the under surface 

 of the head is coarsely rather feebly and obliquely strigose ; the 

 integument of the pronotum is so thin and transparent tiiat the 

 complicated system of muscular attachments can be most clearly 

 studied thi-ough it. I am at a loss to place this species in Dr. 

 LeConte's table, but there is a probability of its coming naturally 

 after emmesus ; it is the smallest of the genus which has been de- 

 scribed from the United States, being somewhat shorter tlian nanus 

 Lee. 



There is a form mentioned by Dr. LeConte (Trans. Am. Ent. Soc. 

 1880, p. 173), which is fusciceps (Fauvel i. litt.), and which he refers 

 to emmesus as a smaller and more slender race. I do not tliink the 

 present species can be the one referred to as fusciceps, as I cannot 

 conceive of the association oi' emmesus sind fucosus in any way; they 

 differ in almost every character, and the merest glance will serve to 

 distinguisii them ; one point deserves special notice besides the very 

 much more flattened form of emmesus, it is that the gular sutures 

 meet at one-fourth the length of the post-mental portion of the head 

 from the posterior margin of the same in the latter, while in fucosus 

 they meet before the middle of this area ; the surface in question is 

 strongly and closely punctate and perfectly smooth in emmesus, and 

 is strigose, and rather feebly and very sparsely punctate in fucostis.- 



CRYPTOBIUM Mann. 



C. capito n. sp. — Form robust, rather depressed. Color throughout 

 dark brownish-red ; head slightly more castaneous and blackish anteriorly; 

 integuments somewhat translucent ; legs much paler and more llavate ; 

 antennae dark rufo-testaceous, palpi much paler ; pubescence sparse, coarse 

 and setiform on the head and pronotum, more abundant at the sides, more 

 dense finer and evenly distributed on the elytra, very dense long fine and 

 conspicuous on the abdomen, plumbeous in color. Head large and con- 



