187 

 FAMILY MEMBRACIDJK. 

 Subfamily Membracina, Stal. 



ENCHENOPA, Am. and Serv. 



199. E. binotata, Say. 



A common species on thistles and other weeds in July. 



CAMPYLENCHIA, Stal. 



200. C. curvata, Fabr. 



Common everywhere. 



Subfamily Smiliina, Stal. ■ 



CERESA, Am. and Serv. 



201. C. diceros, Say. 



July to Sept. Common on elder bushes. 



202. C. bubalus, Fabr. 



June to Aug. Not uncommon on grape vines and various 

 bushes and trees. I have included under this name only the 

 large bright green form with sharp thoracic horns. The smaller 

 dark hairy form with short abrupt horns is the following: 



203. C. taurina, Fitch. 



Occurs on Willows in .swampy places. At Lime Lake, Aug. 

 2, 1S87 I took a large series of this species showing a wide va- 

 riation in depth of coloring, some of the males being almost 

 entirely piceous black. I am m some doubt as to the correct- 

 ness of this determination. 



204. C. brevicornis, Fitch. 



July to Oct. Widely distributed but never abundant. This 

 species seems partial to bass wood. 



STICTOCEPHALA, Stal. 



205. S. inermis, Fabr. 



July and August. Not a common species. 



206. S. lutea, Walk. 



May to Sept. Abundant. Generally taken in the sweep-net 

 from weedy fields and fence-rows. 



ACUTALIS, Fairm. 



207. A. dorsalis, Fitch. 



Occurs on Clematis virgimana in July and Aug., sometimes 

 in numbers. 



ENTYLIA, Germ. 

 20S. E. bactriana, Germ. 



May to Sept. Abundant everywhere on weeds especially 

 wild sunflowers. E sinuata, Fabr. I have not taken here nor 

 have I seen examples from farther north than the vicinity of 

 New York City. 



