THE LEAP BEETLES. 1189 



2194 (10,416). Diso^'YCiiA crenicollis Say, Bost. Journ. Xat. Hist, 1,1835, 



200; ibid. 11. 608. 

 Very similar to caroliniaiiu. Head with occiput usually in part pic- 

 eous; thorax reddish-yellow with three piceous spots, arranged in a tri- 

 angle, the front pair larger; elytra as in caroliniana, the median black 

 stripe as wide or wider than the yellow one each side, the sutural and mar- 

 ginal ones joining at tip. Thorax n;it more than UxU-e as wide as long, its 

 surface, as well as that of elytra, more distinctly alutaceous and more evi- 

 dently punc-tate than in caroliniinid. I^ength 5-6 mm. 



Vigo County: scarce. l^Vbrnary 21-iIarch IS. Hibernates be- 

 neath partly buried logs in open woods. 



2195 (6951). DisoNTCHA glabkata Fabr.. Spec. Ins., I, 1781, 156. 

 Oblong-oval, .surface very shining, as if varnished. 



Head often entirely black except the front, sometimes 

 nearly wholly yellow; thorax yellow, usually with a 

 narrow median spot, sometimes an indistinct spot each 

 side ; elytra yellow, the suture, margins and a median 

 stripe black ; under surface and legs usually yellow, 

 tips of tibiae and tarsi, and sometimes the hind por- 

 tion of metasternum, piceous. Thorax more than twice 

 as wide as long, margins narrow, surface smooth, shin- 

 ing. Elytra a little wider at base than thorax, very 

 finely and sparsely punctate. Length 5-5.5 mm. (Fig. 

 .122.) 



Throughout the State, ci million; more so in the southern coun- 

 ties. April 6--July S. Taken by sweeping madside herbage, espe- 

 cially the i>igweed, Amaranlus rcrrofle.r}i^ ]j. Resembles pcnnsyl- 

 vanica. but smaller and more shining. Tlie black median stripe of 

 each el.vtron is distinctly wider than the yellow ones each side. 



2196 (6954). Diso>;ycha abbbeviata Melsh., Proc. Phil. Acad. Nat. Sci., 



Ill, 1847. l<i.S. 

 Oval, slightly oblong. Head, thorax, scutellum, under surface and 

 femora, reddish-.rellow ; elytr.i paler yellow with a sutural stripe and a 

 median one on each, both rather wide, black; antennae piceous, the two 

 basal joints and the aiiical one paler ; tibiae and tarsi yellow, with a black 

 line on outer side. Thorax nearly twice as wide as long, narrowed in 

 front, sides curved, margins narrow, surface smooth. Elytra slightly wider 

 at baK' tliaii tlKirax. umbonc (listii)ct. surface finely alutarcous. very Hnely 

 and sparsely punctate. Length (5-S.o mm. 



Southern half of State; scai-ce. April !)-September 29. Prob- 

 able hibernates, as most of the specimens were taken beneath logs in 

 the spring. 



2197 (6955). Disoxycha discoiuea Fab., Syst. Ent, II, 1798, 25. 



Oval, sli.ililly depressed. Reddish-yellow; antenuiB, tibiie and tarsi 

 piceous; elytra with a broad oval sutural spot black, shining. Thorax 



