Tin2 FAMILY LIII. CnRYSO^rELIlMC. 



m. Coppery-bronzed; third joint of antennse longer than second; 



head not torose. 2034. Dis'nNoTA. 



mill. Blaekish-violet ; second and third Joints of antennaj subequal; 



head torose, i. e., with Ivuots or elevations. torosa. 



■2024 (10,334). DoNACiA cincticornis Newm., Ent. Mag., V, 1838, 391. 



Elongate, rather slender, subdepressed. Above brownish-yellow strongly 

 shining, often with a greenish tinge ; head and thorax darker ; beneath 

 rlothcd with dense gray pubescence; antenna and legs reddish-brown to 

 piceous, the tips of joints of former often darker. Thorax wider than long, 

 slightly narrowed near base ; disk nearly smooth, median line distinct ; sides 

 finely and somewhat rugosely punctured, with an irregular depression in 

 front of middle_j Disk of elytra with two feeble transverse impressions : 

 punctures large, subquadrate ; intervals flat, nearly smooth. Hind femora 

 swollen and armed nith one to three teeth. Length 7-11 mm. 



Northern half of .State; common. Not taken south of Vigo 

 County. May 17-Aug'List 22. Occurs on the yellow water-lily. 

 XnpJiar advena Ait., and the leaves of Potamogeton. 



2025 (G5.34). Donacia proxima Kirby, Faun. Bor. Amer., IV, 1837, 22.5. 

 Elongate, robust, depressed. Blackish-violet, head bronzed; antenna' 



and legs black. Thorax quadrate; disk with a median impressed line, punc- 

 tate at base and apex, nearly smooth at middle. Elytral intervals not ru- 

 gose. Hind femora less developed than in cincticornis. Length 8-11 mm. 



Wells County; rare. August 1. Ranges from New England 

 to Oregon and probably occurs only in the northern part of Indiana. 



D. magnifica Lee, violaceous, margined with golden yellow, 

 length S-9 mm., is known from Canada and Michigan. 



2026 (6526). Donacia palmata Oliv., Ent, IV. 1795, 75. 



Elongate, slender, subdepressed. Purplish-green to brownish-yellow 

 above, strongly shining; densely whitish pubescent beneath; joints of an- 

 tenna; and femora reddish-brown at base, blackish at apex. Thorax broader 

 than long, very finely punctulate, sides with a rounded tubercle in front of 

 middle. Elytra coarsely punctate; intervals subconvex, distinctly rugose. 

 Length 9-11 mm. 



Starke, Marshall, Kosciusico and A'igo counties; scarce. June 

 20-August 20. Occurs on lioth white and yellow pond-lilies. 



2027 (6527a). Donacia rufescens Lac, Mem. Soc. Liege, III, 1845. 112. 

 Elongate-oblong, subdepressed. Brownish -yellow, feebly shining. An- 

 tennas with third joint twice as long as second, the other' joints scarcely 

 thickened at apex. Tliorax quadrate, very finely wrinkle<l, not puneture<l 

 scarcely tiiljerculate on the si.les. Klyira depres.sed without transverse im- 

 pressions, punctures small, ftvlily impressed; intervals flat, not rugulose- 

 tips Sfpiarely truncate. length 6-8 nun. 



Kosciusko and Starke counties; rare. August 2(VAugust 26. 

 Listed as a variety of D. hi/pulnica Lac. 



