THE LEAP BEETLES. 1111 



KKY TO INDIANA SPEC IKS OF J.EM A. 



(i. Elytra with the ninth stria entire. 

 7;. Elytra wholly dark blue. 



c. Head red, with two tubercles on vertex; antenna 1 , legs and abdo- 

 men black. 2040. ISRI-NNICOLEIS. 

 cc. Head black, without tubercles; thorax red. 2047. COLLARIS. 

 l>l>. Elytra reddish-yellow, with three black stripes. 2048. TKILINEATA. 

 (ui. Elytra with the ninth stria interrupted. 



d. Elytra reddish-yellow, spotted with black. 



c. Larger. G nun.; spots on the disk of elytra. (!-PI.NCTATA. 



cc. Smaller, 4.5-5 mm.: spots common, crossing the suture. 



2040. AEIJINI. 

 <l<l. Elytra blue; thorax red. with a central black spot. 2050. SAYI. 



204(1 (i;5i;5). LEMA BRI'NNICOLLIS Lac., Mon., I, 1801, 382. 



Elongate-oblong. Head, thorax and under surface, except abdomen, 

 red; color of other parts given in key. Thorax very finely punctulate, with 

 a fe\v coarse punctures on sides near apex and on median line. Length 

 4-4.5 mm. 



Lake, Steuben and Marshall counties; rare. .June 12-June 27. 

 Taken by sweeping- herbage in tamarack swamp. Crotch records it 

 from the Southern States, so that it probably occurs throughout In- 

 diana. 



2047 5<;7l. LEMA COI.I.ARIS Say. Journ. Phil. Acad. Nat. Sci.. III. 1X2.'',. 



430; ibid. II, 203. 



Elongate-oblong. Black; thorax red; elytra dark greenish-blue. An- 

 tennae shorter than in the preceding; vertex with a median groove. Tho- 

 rax short, very finely and sparsely punctate. Length 4.5-5 mm. 



Throughout the State; frequent. May 11-July 1. Occurs es- 

 pecially on the spiderwort, Tradescantia i-ir</iiiiaita L ; also on other 

 low herbs in moist, sandy localities. 



2048 (6573). LEMA TRIUNEATA Oliv., Ent., VI, 1808, 739. 

 Elongate-oblong, robust for the genus. Reddish-yellow ; 



elytra somewhat paler, with sutural margin and rather wide 

 stripe on sides black; antenna 1 (except basal joints), tips 

 of tibia? and tarsi, blackish. Thorax usually with two black 

 spots on disk, strongly constricted at middle, smooth except 

 a few coarse punctures on sides near apex. Inner rows of 

 elytral punctures indistinct on apical half. Length 6-7 mm. 

 (Fig. 479.) 



Throughout the State; frequent. April 19-July 25. Occurs on 

 the foliage of various Solanaceous herbs, especially that of potato. 

 Sometimes called the ''old- fashioned potato beetle," but that name 

 in Indiana is usually applied to "blister beetles 11 of the genus E/>i- 

 rtiii/<i. Mating .June S. 



2049 (05751)). LIIMA ALBINA Lac., Mon., I, is-ir>. 492. 

 Elongate-oblong. Reddish-yellow ; antenna?, legs (except base of fe- 

 mora) and sides of rneta sternum, blackish; elytra with a small spot on 



