1*48 STBFAMILY x. crucruoxixjE. 



Tribe IX. OTIDOCEPHALINI. 



Snout beetles of a peculiar ant-like form, due to the thorax 

 being longer than wide, narrowed at base and somewhat pedun- 

 culate, and the elytra elongate-oval, convex, usually widest be- 

 hind the middle and rounded at tip. Except in EmiUm-nx they 

 have the beak rather stout, straight and subcylindrical ; anten- 

 nal grooves converging behind and directed below the eyes, 

 which are rounded and finely granulated; antenna 1 inserted about 

 one-third from tip of beak; scape long, slender, reaching beyond 

 middle of eyes; funicle T-jointed, first joint stouter, but only 

 slightly longer than second, ."> 7 rounded, gradually a little 

 wider; club oval, pointed, pubescent; thorax without postocular 

 lobes; prosternum short, broad, not emarginate; ventral segments 

 nearly equal, their sutures straight; legs rather long; front and 

 middle coxa 1 rounded, the former prominent; hind cox;e oval; 

 femora somewhat clavate, usually toothed; tibia 1 truncate at tip, 

 without spines; tarsi dilated, spongy beneath, the third joint 

 broader, bilobed; claws with a broad, not very prominent tooth. 

 The majority of the species are shining black, with sparse, erect 

 seta 1 . About '11 species, belonging to three genera, represent the 

 tribe in the Tinted States, ten of which are known from our ter- 

 ritory. The literature treating of them is as follows: 



Horn. (!(<>. H. "Othloci'irtuilitx''- '!!! Proc. Am. Phil. Soc., 

 XIII, 187.",, 448. 



T. L. "Coleopterological Notices, IV Otidoeephal- 

 ini," In Ann. X. Y. Acad. Sri., VI, 18!)i>, 42<i. 



. ClniK. "Xew Rhynchophora II" in Journ. X. V. 

 Eut. Soc., XV, 1!)07, 75. 



KEY TO GEXKKA OF OTIDOCEPHALIXI. 



. Beak long and slender, extending to third ventral segment of abdo- 

 men; scape not reaching eyes; joints of funicle elongate. 



I. Ei;oni.S( i s. 

 (ia. Beak much shorter and stouter; scape reaching middle of eyes: outer 



joints of funicle rounded. 

 b. Elytra elongate-oval; humeri and inner wings present. 



II. OTIDOC'KPIIAI.rs. 



lib. Elytra ovate, rounded on sides; humeri and inner wings absent. 



III. OOl'TKRIM'S. 



I. ERODISCI s Schon., 18LM5. (Or., "like a heron.") 



In this genus the beak is very slender, tapering, finely stria!:' 

 and coarsely punctate on sides, male, very finely and sparsely 

 punctate near base, female; antenna- inserted at apical third, 



