1102 FAMILY LI IT. CITRYSOMELTD.K. 



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



head not torose. 2034. DISTINCTA. 



nun. Blackish-violet; second and third joints of antenna.' subequal ; 



head torose, i. e., with knots or elevations. TOROSA. 



2024 < 10.334). DONACIA CINCXICORNIS Newni., Ent. Mag., V, 1838, 391. 



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

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

 clothed with dense gray pubescence; antenme 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. Disk of elytra with two feeble transverse impressions; 

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

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



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

 County. May 17-August 22. Occurs on the yellow water-lily. 

 Xnphar (Kh'cna Ait., and the leaves of Potamogcton. 



2(>2r> (0534). DONACIA PROXIMA Kirby, Faun. Bor. Amer., IV, 1837, 225. 



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. magnified Lee., violaceous, margined with golden yellow, 

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



2026 (6526). DONACIA PALM ATA Oliv., Ent., IV. 1795, 75. 



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

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

 tennae 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, Kosciusko and Vigo counties; scarce. June 

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



2027 (0527a). DONACIA RTFESCENS Lac., Mem. Soc. Liege, III, 1845, 112. 

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



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

 thickened at apex. Thorax quadrate, very finely wrinkled, not punctured, 

 scarcely tuberculate on the sides. Elytra depressed without transverse im- 

 pressions, punctures small, feebly impressed: intervals flat, not rugulose; 

 tips squarely truncate. Length 6-S mm. 



Kosciusko and Starke counties ; rare. August 20-August 26. 

 Tasted as a variety of D. li upolcuca Lac. 



