THii LEAF BEETLES. 1111 



KEY TO INDIANA SPECIES OE I.EMA. 



.'. Elytra with the nnith stria entire. 

 ?). Elytra wholly dark blue. 



c. Head red, with two tubercles on vertex ; anteiin;e, legs and .ibdo- 



men black. 2046. bei nnicollis. 



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



hb. Elytra reddish-yellow, with three black stripes. 2048. thilineata. 



(((/. Elytra with the ninth stria interrupted. 



(1. Elytra reddish-yellow, spotted with black. 



e. Larger, fi mm.; spots on the disk of elytr.n. (VrtNiTATA. 



tr. Smaller, 4.5-5 mm. ; spots common, crossing the suture. 



2049. ALBINI. 



(hi. Elytra blue; thorax red, with a central black spot. 20.50. sayi. 



2040 ((;.'"i(iri). Lema bbunnicollis Eac, Mon., I, 1801, .■'iS2. 



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

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

 a few coarse punctures on sides near apex and on median line. Eength 

 4-4.5 mm. 



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

 Taken liy sweeping herbau'e in tfimarack swamp. Crotch records it 

 from the 8(juthern States, so that it prolialily occurs throughout In- 

 diana. 



2047 (0507). Lema collakis Say, Journ. Thil. Acad. Nat. Sci., Ill, 182:!, 



430 ; ibid. II, 203. 

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

 tennte 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; fVequeut. ^lay 11-July 1. Occui-s es- 

 I)(vial]y en the spiderwort, Trndciscanl.in firginiana L; also on other 

 low herbs in moist, sandy localities. 



2048 (6573). Lema tbilineata 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; antennaj (except basal joints), tips 

 of tibifB and tarsi, blackish. Thorax usually with two blaclv 

 spots on disk, strongly constricted at middle, smooth except 

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

 elvtral punctures indistinct on apical half. Length 0-7 nira. „ „„ 



rig 47y 



(Fig. 479.) 



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

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

 Sometimes r-all<>d the "old-fashioned potato beetle," but that name 

 ill Indiana is usually applied to "blister beetles" of the genus Epi- 

 (11 II I (I. .I\rating June 8. 



2040 (0575b). Lj:ma albina Lac, Mon., I, 1845, 492. 



Elongate-oblong. Keddish-yellow ; antennte, legs (except base of fe- 

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



