(310 



FAMILY XXV. HISTERIDJE. 



1159 (3509). Hister exaeatus Lee, Bost Journ. Nat Hist, V, 1845, 59;' 



pi. Ill, fig. 12. 



Also closely allied to americanus, but differing by having the outer 

 thoracic stria wholly absent; the elytral stria; finer, the fifth joining the 

 sutural ; surface smooth. Length 3.5 mm. 



Vigo and Lawrence counties; scarce. July 1-July 29. Taken 

 from decaying fungi, Agaric es. 



1160 (3510). Hister nubilus Lee, Col. of Kansas, 1S59, 7. 



Broadly oval, subconvex. Thorax with inner stria entire; the outer, 

 short, apical. Elytra with four entire stride; fifth short, apical; sutural 

 extending in front Of middle. Front tibiae with four teeth, the apical one 

 slightly bifid. Length 5 mm. 



A well marked species described from Kansas and represented 

 in the collection by a single specimen taken in Vigo County, June 7, 

 from beneath the carcass of a dead hen. 



1161 (3511). Hister pollutus Lee, Col. of Kansas, 1859, 7. 

 Resembles nubilus, but differs by being less broad and by having the 



fourth dorsal short, basal only, or with a few disconnected punctures at 

 apex. Epipleura with tbree stria?. Apical tooth of front tibia? larger. 

 Length 5 mm. 



Lake and Crawford counties: rare. May 13-May 25. 



Group D. 



To this group belongs a single small species, separated from its 

 allies by the characters mentioned in key. 



1162 (3502). Hister servus Erichs.. Jahrbuch, 1S34, 147. 



Oval, convex. Thorax with two marginal stria?, the outer usually entire, 

 sometimes abbreviated to one-half or three-fourths. Elytra with four entire 

 striae, fifth short apical ; sutural half the length of elytra ; subhumeral en- 

 tirely absent. Pygidium convex, coarsely and rather densely, propygidium 

 more densely and more coarsely, punctured. Front tibia? with three teeth, 

 the apical one deeply bifid. Length 3.5-4.5 mm. 



Vigo County; scarce. May 20- June 11. H. defectus Lee, is 

 probably a synonym of servus, as the two are separated on the length 

 of the thoracic stria, which varies exceedingly in the specimens of 

 servus before me. 



Subgenus II. (Phelister.) 



Very small, oval species, having the inner thoracic stria absent, 

 the outer sometimes present and then very close to margin; prester- 

 num with a stria on each side ; mesosternum prominent in front. Of 

 the six species known from the United States, two occur in Indiana. 



