FIELD BOOK OF INSECTS. 



Breeds in sumac, apple, hickory, and locust. Liopus alpha. 



Much like alpha but the oblique band on each elytron 

 (making the acute angle when the elytra are closed) is 

 replaced by an obscure band of gray. Breeds in dog- 

 wood (Cornus} and plum Liopus punctatus. 



13. Each elytron with a distinct ridge on the outer side. 

 Hyperplatys, of which aspersus is our common species. It is 

 reddish-brown, with grayish pubescence; pronotum with 

 four black dots in a transverse row; each elytron with 

 three irregular rows of similar dots and usually a large, 

 black blotch behind the middle. 



Elytra without a ridge on the outer side. Lepturges, 

 of which we have several rather variable species. The 

 spines on the sides of the pronotum of symmetricus are 

 rather broad and very close to the base. In the others 

 they are more slender and acute, not so close to the base 

 and the tips are recurved. The crossbar on the elytra 

 of signatus is interrupted at the suture; in querci (apex 

 of elytra not black; crossbar angular) and infacetus (apex 

 black; bar transverse) it is broad and complete. 



Pogonocherini. (See page 353.) 



These beetles usually have long, erect hairs, in addition 

 to the ordinary pubescence. The antennae are about the 

 length of the body, the joints progressively shorter toward 

 the tip. The following species are .25 to .5 in. long. 



1. Femora club-shaped; vertex of head concave; antenna 

 tubercles prominent 4. 



Femora not club-shaped; vertex flat or convex; anten- 

 nal tubercles not prominent; eyes coarsely granulated, 

 lower lobe as wide as long. Eupogonius 1. 



2. Spine on side of thorax acute, well-marked 3. 



Spine on side of thorax obtuse, small; black, with a 



broad line of yellowish pubescence on each side of 

 pronotum. On elm and linden E. subarmatus. 



3. The puncturation of elytra feeble, almost obsolete 

 near apex; pubescence ash-gray or yellowish, forming 

 more or less transverse nettings. Has been bred from 

 apple twigs but is said to occur also on pine. E. tomentosus. 



The puncturation coarse, gradually finer, but distinct, 



358 



