152 l'.\:\rlL^• Tr. — cahabid.^. 



piceous: ;iiil("niiM> |)ic(M)us. pnlci- .H h.-isr. ■|'lioi-ii\ a little longer than wide, 

 widest slightly in front of middle: margin very narrow, hind angles obtuse; 

 disk transversely wrinkled, a lew punctm-es near apex. Elytra oblong, 

 gradually liroader behind: tin- stria- tine, pnnct.ate: inteivals flat, sparsely 

 punctate. Length 7-7.5 nun. 



Northern half of State, frequent; Dubois county only in the 

 south. May 14-October 10. Often found on flowers. One of our 

 most handsome Carabids. 



C. purpurea Say, 7.5-9 mm. in length, ranges from IMiehigan to 

 Georgia, Missouri and Kansas, but has not yet been noted in In- 

 diana. 



XLVIII. PLOCHiONtTs Dej. 1825. (Gr., "a lock of hair.") 



This genus is very close to Callida, being separated by the char- 

 acters given in key, and by the ligula having four setre instead of 

 two, as in Cdllida. One species occurs in Indiana. 



'2*\U (!):!1). ri.iHHioNis TiMiDus Ilald.. Proc. Phil. Acad. Nat. Sci., I, 1842, 

 298. 

 Rather broad, depressed. Uniform dark brown, the inargin of thorax 

 and elytra translucent. Thorax broader than long, sides strongly rounded, 

 base wider than apex; margin broad, hiiid angles rectangular; disk trans- 

 versely wrinkled, median line distinct. Elytral striae deep, not punctured; 

 intervals convex, alutaceous. Males with the front tarsi narrowly dilated, 

 the first three .joints with two rows of small scales beneath. Length 

 7-7.5 mm. 



Marion County; scarce. March 16-Noveml)cr 17. Probably hi- 

 bernates. Occurs in damp places beneath bark and rubbish. 



XLIX. PiNAOODERA Schaum. 1860. TGr., " flat + neck.") 



Oblong, brown or piceous beetles of rather small size, having 

 the tarsi smooth above, the middle pair in male dilated. Hind 

 angles of thorax in our species obtuse, not prominent; inner wings 

 well developed. Two species have been taken in Indiana. 



KKY TO TNI)I.\NA SPECIES OK I'INACODERA. 



(I. Elyti'a with pale Junneral sjxit: I bora \- distinctly narrowed behind, its 

 margin broad and translucent. 270. limba'ia. 



aa. Elytra without pale spot at humerus; thorax very little narrowed be- 

 hind, the margin nari-ow. scarcely translucent. 271. platicollis. 



270 (984). PiNACODEEA LiMBATA De.i'., Spec. V, 1829, 320. 



Rather slender, dejiressed. Dark brown oi- piceous; antenute, legs, 

 margin of thorax, humeral spol and sid(>s of elytra |)aler. Head slightly 

 wrinkled above the eyes. Thorax oiie-tliird wider than long, sides mod- 



