470 FAMTLY XT. — o .-y> ....... j< . ....- 



Citsi'ij. — "A Preliminary Monotjr'iiph of the North American 

 Species of Trogophloeiis," in Ann. N. Y. Acad. Sci., IV, 

 1889, 322-383. 

 The following species have been taken or perhaps occur in the 

 State. 



KEY TO INDIANA SPECIES OF TEOGOPHLCEUS. 



((. Thorax with a deep transverse curved or lunate groove near the base. 

 7;. Color dark rcildish-brown ;, legs pale. 908. arcifek. 



hi). Color black ; legs and antenii:i' black ; thorax widest before the mid- 

 dle. ANTHRACINI'S. 



u(i. Thorax without a curved groove near base, but usually with a length- 

 wise groove on basal half each side of a slightly raised median line, 

 c. Eyes large, convex and prominent, the distance from their hind mar- 

 gin to base of head less than one-third their diameter. 



d. Thorax subhexagonal, widest one-third behind apex, the sides 



thence converging and nearly straight to base; its disk broadly 

 impressed on side ; length 3-3.2 mm. 909. quadeipunctatus. 



dd. Thorax rounded in front, widest just in front of middle, sides 

 thence converging to base ; disk not flattened on the sides ; length 

 2.5 mm. 910. memnonids. 



CO. Byes small, much less prominent, the distance from their hind mar- 

 gin to base nearly as long as or longer than the eyes. 



e. Elytra chestnut brown or paler. 



f. Larger, 2.6 mm. ; thorax coarsely and sparsely punctate. 



PHIXBOPOEINUS. 



ff. Smaller, not over 2 mm. ; thorax densely and finely punctate. 



911. POSETENSIS. 



cv. Elytra black or piceous. 



g. Elytra distinctly longer than thorax ; surface not opaque ; an- 



tennae shorter than head and thorax ; length l.S-2 mm. 



912. AGONUS. 



gg. Elytra not longer than thorax ; surface strongly granulate and 

 opaque; length .6 mm. beachypteeus. 



008 (2770). TBOGOPiii.ucrs aeoifee Lee, Trans. Amer. Phil. Soc, VI, 1877. 

 245. 

 Elongate, rather robust, convex. Uniform dark reddish-brown; legs 

 and antennae slightly paler. Head three-fourths as wide as thorax, coarsely, 

 deeply and rather sparsely punctate. .Viitennie longer than head and tho- 

 rax, the outer joints thickened. Thorax one-half wider than long, widest 

 just in front of middle, the sides thence curving to base ; disk coarsely, 

 deeply and rather closely iiunctate. Elytra one-third wider and one-half 

 longer than thorax, coarsely but not densely punctate. Abdomen almost 

 as wide as elytra, rather finely and sparsely punctured. Length 2.S mm. 



Fountain County ; rare. August 17. The specimen at hand has 

 the legs, antenna' and abdomen but slightly paler than elytra; other- 

 wise it agrees with the description of the type. 



