n72 



KAMll.V Llll.- ('llK-VS(tAlEMD,'K. 



r. Ilt'iid ■■111(1 l(';.'s ill piiii iiitcniis: clNti'.-i black. atripf:nnis. 



ec. lli'ad and Icus pair: elytra liTrcii or yellow. 1217<*. longicornis. 



an. Tiliia' imt cariiiate aldii.:; the (Hiter ed.i^e ; elytra yellow with black 



strijies. L'lTl. vittata. 



:.'](;;> (<:ssi). DiAiajom a li; im.xciata I'abr.. Syst. Eiit., ITr.". lli:!. 



< )bloii.Lr-(rval, narrower in trout, moderately coiive.K. I'ale greenish-yel- 

 low; head and iiresterinini black; elytra each with si.\ black spots, as 

 shown in Fiu. nil; antenna' dark, with three basal joints |iale, the second 

 and third together about as long as tonrtli; legs except base of femora 

 piceous. Thorax wider than long, sni'face smooth; disk convex with u 

 rather deep pit each side of middl(\ i'^lytra sparsely and very tinely ]iunc- 

 tate. Length G-7.5 mm. (Fig. 511.) 



Tlu-oimlmiit the State; coiniiion. Mny ^O-Octolicr 21. Occurs 

 on the f()lia<j," of cuciiiiihci', iiicioii and allied plants, bnt is much 

 less injurious to them t'.ian is l). rilhiht: t'ottnd also on g'oldenrod, 

 corn and many plants. The larvie feed on the roots of corn and 

 grasses. 



D. afripciinis Say, entirely black, or with thorax and abdcmien 

 in ])art or wholly yellowy length 4-r) mm., is said to occur from 

 Massachusetts to Kansas and Dakota, hut no specimens have as yet 

 l)een noted in Indiana. 



2170 (OSSS). DiAiJROTJCA LONGicoRNis Say. Journ. I'liil. Acad. Nat. Sci., 

 Ill, 1824, 4G0; ibid. II. 22:!. 



Elongate-oblong. Greenish or 

 greenish-yellow; antenna', and 

 sometimes the head and thorax, 

 pale reddish-brown. Thorax near- 

 ly (inadrate. sides cnrved in 

 front, slightly sinuate behind; 

 disk convex, smooth, with a rather 

 deep fovea each side. Antenn;e 

 two-thirds the length of botly. 

 Elytra distinctly wider behind 

 tlu' middle, surface vaguely sul>- 

 sulcate, rather coarsely and close- 

 ly punctate and with a raised line 

 from unihone two-thirds to apex. 

 Length 5-^5.5 mm. (Fig. 512.) 



Throiighout the State,' fre- 

 Fiff.r,i2. X 10. (After Forbes.) (jvcnt; moiv SO iu the south- 



ern connties. -June 22-()ctol:er 5. Most almndant in early autumn 

 on the silk and leaves of ripening corn and on the flowers of wild 

 sunflower and u;'oldenrod. 



