268 ACADEMY OF NATURAL SCIENCES 



sutural stria at base : feet blackish-piceous : anterior tibiae with 

 two or three prominent teeth, and four or five smaller ones. 



Length less than one-fifth of an inch. 



Family 4. — Body oblong or elongated, flattened ; clypeus con- 

 cave ; thorax marginated, punctured each side ; elytra striated ; 

 anterior tarsi denticulated ; posterior pairs with but a single 

 series of spines. 



[The two species of this division are of the genus Platysoma. 

 — Lec] 



15. H. parallelus. — Elytra with entire striae; anterior tarsi 

 quadridentate ; frontal line distinct. 



Body somewhat elongated, a little depressed, black : head 

 punctured, with a distinct transverse, impressed line, anterior to 

 which the surface is a little concave : antennae pale rufous : man- 

 dibles piceous ; thorax punctured, those of the disk a little 

 smaller : elytra slightly punctured each side and at tip ; all the 

 striae entire : beneath piceous-black : feet pale piceous : [43] an- 

 terior tarsi four-toothed, two terminal teeth nearly equal. 



Length from more than one-tenth to less than three-twentieths 

 of an inch. 



Yav. a. Sutural stria obsolete at base. 



Rather common. I have also found it in East Florida. 



16. H. frontalis. — Head a little depressed ; nasus very 

 short, transverse line indistinct; elytra with entire striae. 



Body oblong, somewhat depressed, black : head depressed, the 

 clypeus terminating before in a rather prominent line between 

 the antennae ; transverse line obsolete ; nasus very short, trans- 

 verse, linear, not concave : labrum and mandibles piceous : an- 

 tennae piceous, with a yellow capitulum : thorax subequally punc- 

 tured : elytra slightly punctured on the lateral margin and tip ; 

 stride entire ; fifth obsolete at base, or continued only by punc- 

 tures : anterior tarsi with four small teeth. 



Length less than one-tenth of an inch. 



Very similar to the preceding, but much smaller, and distin- 

 guished by the peculiar form of that part of the head to which 

 the labrum is attached ; this pai't is transverse linear. I ob- 

 tained a specimen on the eastern shore of Virginia. 



[Vol. V. 



