KEY TO THE LONG-HORNS. 



Tarsal claws spreading only slightly from a common 

 base 8. 



5. Front coxal cavities rounded; middle coxal cavities 

 closed or nearly so; body usually broad; antenna? usually 

 very long in males Tribe Acanthoderini (p. 355). 



Front coxal cavities angulate ; middle cavities open. . . 6. 



6. Tarsal claws simple (except the outer one of the front 

 and middle tarsi in some males of Saperda) 7. 



Tarsal claws cleft or with appendages 



Tribe Phytceciini (p. 361). 



7. Small, flattened species; pronotum with a spine or 

 tubercle on the sides Tribe Pogonocherini (p. 358). 



Rather large, cylindrical species; pronotum without 

 spines or tubercles... Tribe Saperdini (p. 359). 



8. Front of face large and flat; front coxas angulated. 

 Tribe Onciderini. Oncideres cingulata is about .6 in. long; 

 antennas of male longer than the body, of female about as 

 long; general color, smoky or reddish-brown to clay-yellow, 

 almost always lighter in a broad band across the elytra; 

 usually three small black dots in a cross-row on the prono- 

 tum. The female lays her eggs in twigs of hickory 

 (especially), apple, pear, plum, elm, linden, and other 

 trees; then chews a girdle around the twig below the eggs. 

 The twig dies and, broken off by the wind, falls to the 

 ground where the larva? mature. Adults are somewhat 

 abundant in August and September. 



Front of face bent in ; form very slender and elongate. 

 Tribe Hippopsini. Hippopsis lemniscata is about .5 in. 

 long; dark reddish-brown; pronotum with two whitish 

 lines on each side; each elytron with three whitish lines; 

 antennas pale brown, darker at bases, more than twice as 

 long as the body, fringed with hairs beneath. Breeds 

 in stems of ragweed (Ambrosia) and in other herbaceous 

 plants. 



Monohammini. (See page 352.) 



* 



i. Legs, especially the front ones of males, relatively 



long 2. 



Legs not especially long and all about equal; pronotum 

 with a spine on each side 8. 



23 353 



