THE TUMBLING FLOWER BEETLES. 1323 



2451 (7840). MORDELLISTENA CONVICTA Lee., Proc. Phil. Acad. Nat. Sci., 



XIV, 1862, 50. 



Linear. Black; pubescence of elytra arranged in distinct narrow lines. 

 Length 8 mm. 



Marion and Perry counties; scarce. May 20-May 30. 



2452 (784.'!). MORDELLISTENA MORULA Lee., Proc. Phil. Acad. Nat. Sci.. 



XIV, 1862, 50. 



Resembles />i/x/iil<itu in form and size, but the pubescence is yellowish 

 and is scattered unevenly over the surface. Length 2-3 mm. 



Lake County; rare. May 29-June 12. A member of the Alle- 

 ghanian fauna. 



2453 (7844). MORDELLISTENA AMBT^TA Lee.. Proc. Phil. Acad. Nat. Sci., 



XIV, 1802, 50. 



Nearly linear. Dark reddish-brown, the head and thorax often slightly 

 darker. Ridges of hind tibia? longer and more oblique than usual. Length 

 3-3.7 mm. 



Vigo, Knox and Crawford counties; scarce. June 2-July 4. 

 M. singularis Smith, length 5 mm., is known from Georgia and 

 near Cincinnati. 



2454 (7846). MORDELLISTENA VNTCOLOR Lee., Proc. Phil. Acad. Nat. Sci.. 



XIV, 1862, 50. 



Slightly wedge-shaped. Uniform -lark reddish-brown, thickly clothed 

 with brownish-yellow pubescence. Length 3.4 mm. 



Marion and Putnam counties ; rare. June 7- June 28. Differs 

 from ambiista only by the additional ridge on first joint of hind 

 tarsi. 



2455 (7847). MORDELLISTENA MARGINAI.IS Say, Journ. Phil. Acad. Nat. Sci., 



III. 1824. 278; ibid. II, 165. 



Rather robust; wedge-shaped. Black: head and thorax reddish-yellow. 

 the former usually with a black spot; the latter either with base entirely 

 black or with a quadrate oblong spot extending from middle to scutellum. 

 and another on each hind angle. Length 3-4 mm. 



Throughout the State, common : much more so in the northern 

 counties. May 29 September 25. Taken by sweeping. .17. rtnnata 

 resembles this species closely and is apt to be confused with it. 



2456 ( -). MORDELLISTENA IIIVISA Lee.. Col. of Kan. and K. N. Mex.. 



1860, 17. 



Slightly wedge-shaped. Head, front and middle legs and front half of 



