v^ u xvv>< u ju-Lv^i.^ \.\jj3ii [LeConte. 



of the eyes, which are large, transverse, and not finely granulated. Anten- 

 nae stout, funiculus with rather short joints, becoming gradually broader, 

 seventh forming part of the club, first and second joints very little longer 

 than the following ones. Mesosternum a little longer than the first ventral, 

 which is longer than the second; first suture broadly angulated at the mid- 

 dle. Thighs clavate, very strongly toothed. Prosternum broadly emar- 

 ginate in front, and fringed with long yellow ciliae ; postocular lobes feeble. 

 Legs stout, thighs clavate, sinuate beneath, and armed with a large tooth ; 

 tibiae suddenly dilated, strongly sinuate on the inner side above the middle 

 and expanded at tip, corbels broad, smooth, lateral terminal hook very 

 large. Mandibles quite different in form from those of the other genera, 

 flattened, so that the tooth which is inferior in the other genera becomes 

 anterior; the under surface is slightly concave, the upper one feebly convex, 

 and the inner margin is obtusely 3-toothed. 



1. P. pieivorus Liparuspic. Germ., Ins. Nov. 311; HyloUus pic. Boh., 

 Sch. Cure, ii, 340. 



Abundant under pine bark, in the Southern States, less frequent in the 

 Middle States. 



HYLOBIUS Sch. 



The genus as here restricted, will contain only those species in which the 

 mandibles are normal in form, the antennae stout, with the seventh joint of 

 the funiculus broader and forming part of the club ; the eyes are rather 

 large and transverse ; the anteocular grooves are broad and shallow. The 

 postocular lobes are large, and the prosternum deeply emarginate in front 

 and fringed. The metasternuin is as long as the first ventral. The thighs 

 are clavate, sinuate beneath and strongly toothed ; tibiae slender, sinuate 

 on the inner side, corbels narrow ; terminal hook strong. The second and 

 fifth ventral segments are each as long as the third and fourth united, and 

 the first suture is broadly angulated at the middle. 



1. H. pales Boh., Sch. Cure, ii, 340; Curculio pales Herbst, Kafer, vii, 

 31; pi. 99, f. 10; Pissodes macellus Germ., Ins. Nov. 319 ; Harris, Ins. Inj. 

 beg. ed. ult., 70, (larva). / 



Lake Superior to Florida, abundant under pine bark. The head is very 

 densely, though not coarsely punctured, and is nearly opaque ; the protho- 

 rax is coarsely and rugosely punctured. The pubescence of the ely tral spots 

 is sometimes yellow, sometimes gray. Length 6.8-10.2 mm. ; .27-. 4 inch. 



2. H. confusus Kirby, Fauna Bor. Am. iv, 196. 



Lake Superior. Closely resembles the smaller varieties of the preceding, 

 but the head is shining, and less densely and rather more coarsely punc- 

 tured. The punctures of the prothorax are also less confluent, and the 

 surface less plicate. The pubescence is nearly white. Length 6.8 mm. ; 

 .27 inch. 



3. H. assimilis Boh., Sch. Cure, ii, 345. 



Unknown to me ; described as larger than H. pales with the head dis- 



