Ill'; (;kai.\ and nAKK-(;^^\^vr^'(i hisICI'uos. 



663 



I. Alindkia Eviclis. 1S44. (Or., "to roll or liirn.") 



'I'liis ^•('iius is rcpfcsciitcd in llir caslcni liiitiMl Si;ilcs by two 

 species, one of wliidi dccurs in liiduiiia. 



1270 (;is:n). Aiim>kia (^IlM•Kl(A (JodlT.. Encye. Method.. X, 71'.>. 



EkMifiato. suhiyliiHlriial. cdiivex. Unifurm dark rcddisli-ltrowii or i)i(> 

 I'ous. Thorax subciiiadrate, slightl.v and graduall.v nai rowed Irom apex to 

 liase. hind anirles obtuse, surface finel.v, sparsel.v and evenl.v punctate. El.v- 

 tra with base well separated from that of thorax, sides nearly parallel, tips 

 rounded: surface striate, the striip with rather line sei-rale punctures; in- 

 ttTvals very finely punctulate. Len.sth 5-34 nun. 



Soullicni half of State; fivcinent. April U-Septeiuhei- 20. 

 (Occurs boiicath bark of hickory, elm. etc. There is a wide varia- 

 tion ill size between the sexes, the males beinti- much the smaller. 



Trogosifa vircscens Fab.. "• r e e n i s h- 

 black. 12 mm. in length, occurs beneath 

 bark of pine. etc.. and has been taken at 

 Cincinnati. 



II. Tenebkoides Pillar & ]\Iett. 1783. 

 (Gr., ' ' Tenebrio ^ resemble. ") 



Oblong, snbdepressed species having the 

 thorax widely emarginate at apex, nar- 

 rcnved behind the middle and somewhat 

 distant from elytra: front of head trisinu- 

 ate or emarginate in front ; tibia^ Avithout 

 spines. Twelve species and a number of 

 varieties are listed from the United States. 

 Of these the following have been taken or 

 perhaps occur in Indiana : 



Fig. 24(i. T. maiirUanica L. .\diilt 

 beetle with antenna, the latter greatly 

 enlarged. Bull. 4, U. S. Div. Ent. 

 (After Howard.) 



KEY TO INDIANA SPECIES OF TENEBKOIDES. 



«. Eiiu'hth .ioint of antennte ecpial to the ninth: length 0.5 mm. (FiR. 24G.) 



MAUKITANICA. 



(Id. Eitrhth .joint nnich smaller th.-m the ninth. 



b. Thorax sulxpiadrate. but little broader than long, sides feebly 

 rounded, hind angles acute. 

 e. Color black or piceous ; sides of thorax simiate near base; form 

 more convex. 

 (1. Size larger, 7.5-8 nun.: sides of tliorax more rounded than in 

 the next. 1271. corticai-is. 



(](1. Size smaller, not nvei- <",..", nnii. : sides of tlioi'.ix feebl.v rounded. 



1272. oriuA. 



cc. Color reddish or chestnut brown; sides of thorax not sinuate; form 



more depressed. 1273. nana. 



