1320 



FAMILY LXI. — MORDELLID.t:. 



Throughout the State; 

 common, ilay 5-August 2. 

 "The legs vary from pale 

 brownish-yellow to dull black, 

 the pubescence from brown- 

 ish-black to ash-gray, and the 

 head from deep black to dull 

 red." (Smith.) 



Fig 578. a, Hind tibia and tarsus of U grammica; b, elytron 

 of M injima; c, elytron of .V andrem; d, elytron of .V, gram- 

 mica. 



Group D. 

 In this group the hind 

 tibia' bear two parallel ridges, the upper one much longer and ex- 

 tending almost across the outer face of the tibia'. (Fig. 578. <i.) 

 The following sitecies have been taken or perhaps occur in Indiana : 



KEY TO INIIIAXA SPECIES OF OHOLT D. 



(1. Firi^t .inint of hind tiivsi with two, secniifl with one oblique ridge. 



//. Elytra Ijlaci'; with two yellow bands as in trifii^ciiita. amic.\. 



hi). Entiri'ly black ; pubescence grayish. picilabris. 



(in. First .ioint of hind tarsi with iliree or four, second with two obliqne 

 ridges. 

 r: First .ioint of hind tarsi with only three cliliqne ridges. ( Fig. ."i7S, a.) 

 <1. Body yellow; elytra yellow, with base, tips, suture and a large, ob- 

 long marginal spot black. 244ri. grammica. 

 (1(1. Elytra not as above. 



r. Elytra and entire body pale Ijrownish-yellow. 2440. testacea. 

 '•''. Elytra in part or wholly black or piceous. 



/. Elytra pale reddish-brnwu with the suture and margin black: 

 body black. 2447. varia.xs. 



//. Elytra without distinct markings. 



,f/. Thorax wlmlly rcddisli-brown ; elytra with reddish humeral 



spot. SEMIUST.V. 



fifi. Thorax black or piceous; elytra without humeral spot. 



//. Ilciul in part or wholly reddish ; front and middle legs 



pale reddish-.yellow. 



/. Elytra with sage-greeu pubescence: front of head only 



reddish yellow. delicatula. 



//'. Elytra with brownish-yellow pubescence: head wholly 



reddish-brown. rificeps. 



////. Rcidy and legs entirely black. 244s. nigricans. 



rr. First joint of hind tarsi with four oblique ridges (Fig. Tu'.K a) ; pie- 



eous, clothed witli line silvery puliescence. speexdens. 



.1/. aDiica Lec, 2.5 mm., and 1/. piciJabri.'i Helm., 2 mm. in length, 

 have been I'ceorded fi-om Cincinnati; the latter also from Illinois. 



