No. 428, anthracinus Knoch. Black, polished ; thorax sub- 

 quadrate, broadest at base, posterior angles rectangular, elytra 

 with impressed, punctured stria?, and convex, interstitial lines. 

 Anterior tibia? of the male with a spine within the middle. 

 Length from .50 in. to .62 in. ; breadth from .18 in. to .24 in. 



U. rufipes is hardly distinct from this species, and differs 

 only in having the thighs rufous or pale piceous. 



No. 143, fulvipes Herbst. Trogosita femorata Fabr. 



Subgenus Tcnebrio proper. 



No. 128, molitor var. americanus Peck. Black, opaque, con- 

 fluently punctured ; posterior angles of the thorax subacute, 

 produced; elytra striate, stria? punctured, interstitial lines 

 acute. Body beneath, tarsi and antennas piceous, the latter 

 fulvous at tip. Anterior tibia? of the male arcuated. Length 

 from .52 in. to .71 in. ; breadth from .17 in. to .25 in. 



For this species Prof. Say erroneously gave me the name 

 of barbatulus Knoch, which is a Upis, allied to Icevis, and has 

 a bearded labium. Our molitor is found exclusively about 

 houses, barns, and granaries ; the larva feeds upon corn, flour, 

 etc., and not upon wood. 



No. 316, punctulatus mi. Blackish brown, oblong, punc- 

 tured, subrugose, elytra punctato-striate, interstitial lines 

 convex, subacute ; all the tibia? arcuated ; tips of the antennae 

 ferruginous. Length .52 in. to .66 in. ; breadth from .19 in. 

 to .24 in. 



It is a much larger species than badius, with but little 

 polish, the punctures more distinct, no larger ones on the sides 

 of the thoracic base, and the interstitial lines acute. In 

 badius the interstitial lines are convex and rounded, and the 

 tibia? are not arcuated. T. punctulatus is distinguished from 

 our molitor at once by its aspect, and by having all the tibia? 

 arcuated, the body somewhat polished, and the posterior tho- 

 racic angles straight and not produced. The larva? of this 



