■nil-: (ii.'oi \i> i:i:i;ii.i:s. 10'' 



KKV ID IMHAXA "MNlliA (IF ( 1 1 L.K.N 1 1 M . 



(/. l'iiui-turt<s ol oi.ulilli siria of olytra distanl rmm llir mnriiin, Hn' iiintli 

 siria vtT.v (listiiH't ; eyes reunilar in niilliin'. imt li-iiiicatc lifliiiid : c.ilnr 

 lUdstly irroon or l»lni'-lila<u. 

 h. ^[(MltlUll with a (listiiicl lolu- cacl! side; li'UuMli s m- nw.rr imii. 



r. .Mcntiiiii toothed in the (HMitcr of tlic iiot.h. L\'. ( 'ii i..knil s. 



rr. Mcnfuin not toothed. I-VI. .\\oM()(iLo.ssi s. 



.'(/). .M.,Miliini willioul lolics. trniicalc in fi-oiit : leii.i.'lh '.> '.•.."■ nun. 



Ii\ll. r.KAl ll\ I.Olil S. 



nil. Ki.i.'hth stria of elytra very dose to ilie inaruin. th(> uiiitli indistiiid : 

 eyes truncate behind: color black or pjceous. 

 </. .Ml the tarsi ])nbescenl iKMiealli : <-lyi>eus with a bristie-bcariuL' punc- 

 ture each side; laln'uni with six seta-; len.L,'t h '.».•'. K) nun. 



L\l 1 1. I,A( ii.\o( ina-is. 



(Id. Hind tarsi not pubescent beneatli. 



r. Front tarsi of nmles with four .joints dihited. the hrst three spon^'y 

 beneath; clypeus without brisi le-bearini,- punctures; laiiruni with 

 six setie; length ."> C nun. MX- A.na tkhiiis. 



(■<-. Front tarsi of nnile with tlii'«-e joints dilated and spon.t;y ; second 

 joint of labial paliii without seta^ in front: tlioi'a.v as wide at 

 base as elytra; leuLClii T.r» or more nun. t.X. (>(')iii-.s. 



T.\'. ("jii,.F.xii'S P)Oii. ISl:^,. ((if.. '•;( cldiik or mantle.") 



This genus is coiiipuscd of greeiiisii- or hhiish-hhn-k oblong 

 beetles of medium or large size. They are mostly finely pubescent, 

 and when handled give off an odor like that of morocco leather. In 

 a number of si)ecies the ))ase of thorax is as \vide as that of elytra. 

 They live beneath stones, logs. etc.. the majority of the species being 

 found in damp localities, where the,^^ feed largely upon other in- 

 sects. In 28 individuals dissected hy Dr. Forbes. s:5 per cent, of 

 the stomach content was found to be of animal origin. Of this 65 

 per cent, was of insects, chiefly cutworms, canker-worms and other 

 injurious forms, so that the genus ranks high among the lieneficial 

 ("arabida\ 



About 43 species of Chbeniu.^ are IcnoNvn from the United States. 

 Of these. 16 have been taken in Indiana, while two others perhaps 

 occur. The i)rincipal pai)ers treating of the genus are as follows: 



L<('<>iif(. — "Analytical Tal)le of tlie Species of ChUenius in the 

 I'liited States." 1,1 Proc. I'hil. Acad. Nat. Sci.. VIII, 1856, 25. 



ff, ,)■)}. — "Revision of the Species of Chhenius in the United 

 States," iv Trans. Amer. Ent. Soc, V. 1876, 25:5. 



7/or/(.— "Synoptic Table." /;/ Bull. Brook. Knt. Soc. IV. 

 1882, 8. 



For convenience the Indiana species are first divided into two 

 groups and these in turn iiitt) species. 



