1338 



FAMILY l.XII. — AXTHICIDJE. 



north of Marion and Putnam counties, though probably occurs in 

 fewer numbers. January 21-Deeemher 8. Most common in spring 

 and tall beneath chips, mullein leaves, stones, etc.. and hibernates 

 m similar places. T. interrupts Laf. is a mere form in which the 

 basal portion of elytra is more extended, with the rows of punctures 

 ess regular. Intergrades between the two are common in the col- 

 lection at hand. 



IX. Malpobus Casey. 1895. (Or, " bad -walker.") 

 . R f her slend er. ant-like species, possessing the characters men- 

 tioned m generic key and having the head more strongly rounded 

 and the last joint of maxillary palpi smaller than in Lappus 

 three closely allied species may occur in Indiana, though but two 

 have been taken. 



KEY TO INDIANA SPECIES OF MALPORUS. 



a. Elytra] punctures distinct throughout the disk, fine and remote toward 

 apex, closer and coarse before the middle. 

 b. Thorax very strongly constricted; body throughout more sparsely 

 punctate : elytra without an apical pale spot. eormicaeivs. 

 66. Thorax much less strongly, constricted: body more densely punctate- 

 elytra more parallel, the pale crossband less basal, each with an 

 apical pale spot. 24§4 



aa. Elytral punctures limited to the sub-basal transverse impression, which 

 is strong. 



248o. PKOPERUS. 



2484 ( 7941). Maipobus cixctus Say. Journ. Phil. Acad. Nat. Sci III 

 1824, 27S ; ibid. II, 165. 

 Dark reddish-brown, shining: elytra black or piceous. reddish at base 

 and with a pale, narrow crossband. interrupted at suture, in front of inid- 

 •f ' a ! Kl r UaUy a faiut * ale Wot at margin of tips. Thorax narrower 

 than head, much longer than wide, strongly constricted on sides behind the 

 middle; the larger front lobe globose and sparsely punctured, the hind one 

 rather coarsely and densely punctured. Elytra with disk feebly trans- 

 versely impressed on basal third, each with a distinct hump near suture 

 m front of pale bar: surface punctured and with erect setae as mentioned 

 in keys. Length 3-3.8 mm. 



Throughout the State : scarce. February 11-Julv 24 Occurs 

 beneath logs and rubbish, especially in sandy places near water 

 Several dark specimens with apical pale spot lacking may be for- 

 micanus Laf.. but I am unable to satisfactorily separate them as 

 distinct. That species is said to occur from Rhode Island to Iowa. 



24S5 ( ). Maiporus pbopebtjs Casey. Ann. X. Y. Acad. Sci VIII 1S95 



653. '' ' / ' 



More slender and somewhat paler than ductus; eves larger and more 

 convex; antennae more slender. Elytra with basal transverse impression 



