THE LONG-HORNED WOOD-BORING BEETLES. 



1061 



Fall, H. C. — "New Species of Pogonocherns with Synoptic 

 Table," in Ent. News, XXI, 1910, 5-9. 



The subfamily is divided by LeConte and Horn into 16 tribes, 

 eight of which are known to be represented in Indiana, while mem- 

 bers of two others may occur. 



• ' • JL 



KEY TO INDIANA TRIBES OF EAMIINiE. 



a. Elytra entire ; front tibiae silicate. 



1). Elytra with a spine or protuberance near the scutellum ; size small, 

 not over 6 mm. 



c. Humeri rounded ; elytra convex with large spine near the scu- 

 tellum ; front coxal cavities rounded.- 



Tribe I. Cyrtixixi. p. 1062. 

 cc. Humeri distinct; elytra less convex with oval protuberance near 

 scutellum ; front coxal cavities angulated. 



Tribe II. Psexocerixi. p. 1062. 

 bh. Elytra not spinose or protuberant at base; size usually larger or 

 moderate (over 6 mm. except in some Liopus of Tribe IV). 

 <1. Scape of antenna? with an apical cicatrix (except- in Dorcaschcm a) ; 

 body elongate, subcylindrical ; mostly large species with antennae 

 sometimes greatly elongate in male. 



Tribe III. aIonohammixi. p. 1063. 

 dd. Scape of antennae without apical cicatrix. 



e. Tarsal claws (at least those on front tibiae) divaricate. 



f. Front coxal cavities rounded; middle coxal cavities closed or 

 nearly so : body usually broad; antennae usually very long in 

 males. Tribe IV. Ac axthoderini. p. 1069. 



ff. Front coxal cavities angulate ; middle cavities open. 



g. Tarsal claws simple (except the outer one of front and mid- 

 dle tarsi in some males of Saperda). 

 Ji. Smaller, somewhat flattened species; thorax with a spine 

 or tubercle on sides. 



Tribe V. Pogoxocherixi. p. 10S0. 

 hh. Larger cylindrical species; thorax never armed with spine 

 or tubercle. Hh-ibe VIII. Saperdixi. p. 10S4. 



gg. Tarsal claws cleft or appendiculate. 



Tribe IX. Phytceciixi. p. 1089. 



ee. Tarsal claws divergent. 



L Front large, flat ; front coxae angulated. 



Tribe VI. Oxciderixi. p. 10S3. 

 ii. Front inflexed; form very slender and elongate. 



Tribe VII. Hippopsixi. p. 1083. 

 aa. Elytra about half the length of abdomen: front tibiae not sulcate ; front 

 coxal cavities angulated. widely open behind; eyes very large, divided. 



Tribe X. Methiixi. p. 1095. 



