1292 FAMILY LViii. — :\iP:i.ANDRYin.r.. 



VI. EuSTROPHUS 111. 1807. (Gr., "well + twisted.") 

 Blaek or brown, oval, strongly convex species, separated from 

 those of allied genera only by the characters al)ove given. Six spe- 

 cies are recognized, three of which have been taken in the State, 

 while two others may occnr. 



KEY TO INDIANA SPEC I IS OE EUSTROPHUS. 



(/. Eyes ii.irniwly separated, souietiiuos almost coiitifiiions on the front. 

 />. Middle and hind tlbi:o with distinct transverse ridges on their outer 

 edge ; under surface and legs reddish-brown. 

 c. Form distinctly narrowed hohind tho middle; thorax wholly black. 



2387. BicoLOU, 

 cc. Form much less narrowed behind the middle; thorax with a brown 

 marginal band on sides and front. buunneimarginatus. 



bb. Middle and hind tibi:e without transverse ridges ; under surface and 

 legs piceous. 2388. repandus. 



iia. Eyes widely separated on the front; form very little narrowed behind 

 the middle. 

 (1. Piceous black; thorax beneath shining, closely but not roughly punc- 

 tured. CONFINIS. 

 (hi. Brown; thorax beneath densely and roughly granulate-punctate. 



2389. tomentosus. 



*2.3S7 (7679). Eustrophus bicolor Fab., Ent. Syst., I, 1798, 497. 



Oval, convex, distinctly narrowed behind. Black, shining, sparsely pu- 

 bescent; abdomen and legs reddish-brown; antemije black, four basal joints 

 reddish, terminal joint wholly reddish-yellow. Thorax finely and closely 

 punctured, the basal impressions vague. Elytra with rows of feebly im- 

 pressed, rather coarse punctures which become tiner towards apex; inter- 

 vals flat, closely punctate. Length 5-0 nun. 



Throughout the State; common. January 19-September 20. 

 Occurs beneath bark, especially that of fungus-covered logs. In two 

 specimens from Tippecanoe County the under side of abdomen and 

 femora are wholly black, Init otherwise I can note n(^ ditferences of 

 importance. 



E. hru)nici)nar(ii)iafi(s Dury, black, head rufous, thorax and ely- 

 tra each margined with brown, length ;^.7-4.S mm., was described 

 from near Cincinnati. 



2.388 (10.710). Eustrophus repandus Horn, Trans. Amer. Ent. Soc.. XV, 

 1888. .3.3. 



Differs from birolor by characters given in key. The antenme are 

 darker, with only the apical half of terminal joint pale. Punctures of ely- 

 tral rows much finer on apical third. Length G-7 mm. 



Throughout the State; common. ]\larch 26-Novemb6r 17. Oc- 

 curs with the preceding, more commonly on fungi, and like it prob- 

 ably hibernates as imago. 



E. confinis Lee, length 6 mm., is known from Canada, Wisconsin 

 and Nebraska. 



