3 68 CLAVICORNIA — TRICIIOPTERYGIDxVE. 



Oblong, broad, convex. Black, with extremely short 

 pale luurs ; legs yellow. Eyes prominent ; thorax broadest 

 near middle, not narrowed behind, much wider at base than 

 at apex, tubercles moderately large, in close, curved rows, 

 sides bordered ; elytra distinctly longer than head and 

 thorax, sides straight until near apex, thence rounded, 

 apices slightly rounded. L. -^ — ^ 1. Rare. 



T. c a 71 ti an a, Mat 



Ji B. Scutellum rather small ; elytra not strongly 

 asperate, in interruf)ted rows. 



Oblong, convex. Black, rather scantily covered with 

 yellowish liairs ; legs dusky-yellow. Eyes small, not 

 prominent ; thorax broadest in middle, scarcely narrowed 

 behind, wider at base than at apex, tubercles moderately 

 large, in interrupted rows, sides bordered ; elytra somewliat 

 longer than head and thorax, sides straight, apex feebly 

 rounded ; eighth joint of antennae short and thickened. 

 L. Y*V 1. Eare. T. ])icicornis, Mann. 



2, Head prominent, rather long. 



A A. Ijody short and broad ; tliorax with de- 

 pressions at sides of base; elytra nearly 

 quadrate. 

 Convex. Black, closely covered with rather long pale 

 hairs; legs pitchy or brown. Eyes prominent; thorax 

 broadest behind middle, tubercles minute, in curved rows, 

 sides bordered ; elytra not longer than head and thorax, 

 deeply asperate in transverse rows, dilated behind in male, 

 apices strongly rounded. Anterior tibiae of male much 

 dilated toward apex, first two joints of their tarsi dilated, 

 the first one as long, and twic(3 as broad as second. L. 

 y*^— -j-^-g- 1. Not uncommon. T. hrevipc7inis, Er. 



J5 S. Body oval, somewhat elongate ; thorax 



with a transverse depression on eacli side of 



base; elytra ovate. 



Strongly convex. Black, with long yellow liairs ; legs 



yellow. Eyes prominent ; thorax broadest behind middle, 



tubercles moderately large, placed rather closely, sides 



bordered ; elytra not longer tlian head and tliorax, rather 



deeply asperate in nearly straight rows, apices narrow, 



nearly straight. Male with anterior tiljiae dilated toward 



apex, first two joints of tlieir tarsi dilated, tlie first one very 



