56 The University Science Bulletin. 



Distribution. Van Duzee reports this species from Ontario, Con- 

 necticut, New York, New Jersey, Pennsylvania, Ohio, and Illinois. 

 A single specimen taken at Kansas City, Mo., and determined by 

 Dr. E. D. Ball, evidently puts this species within our range. 



Hosts. Van Duzee gives basswood as a host. 



Ceresa taurina Fitch. 



(PI. II, figs. 3, 4.) 



Membracis taurina Harris, List Ins. Mass. in Hitchcock, Geol. Mass., p. 579, 1833 (MS 

 name). 



Enchenopa taurina Walker, List Homop., ii, p. 495, 1851 (MS name). 

 Ceresa taurina Fitch, Trans. N. Y. St. Agr. Soc, xvi, p. 335, 1856. 



Funkhouser gives the following technical description: 



Slightly smaller than C. bubalus, but resembling it in color; body slender 

 and metopidiiim conca\'e transversely; horns sharp, curving upward and back- 

 ward. 



Head roughly triangular, wider than long, roughly sculptured, not punctate 

 nor pubescent, basal margin strongly curved; eyes prominent, brown and in 

 some cases barred with darker, extending beyond the adjoining lateral mar- 

 gins of the pronotum; ocelli prominent, pearly, occasionally margined with 

 reddish, nearer to each other than to the eyes; clypeus subrectangular, swollen 

 and protruding, extending for half its length beyond lateral margin of face, 

 faintly trilobed, apex bristled. 



Pronotum deeply and coarsely pimctiu'ed, bright green fading to yellow, 

 sparingly pubescent; metopidium strongly concave, with curved, transverse 

 margin, area above eyes smooth; suprahvmieral horns slender and sharp, ex- 

 tending upward and backward, often much curved, tips generally darker than 

 bases; dorsal crest high and strongly curved; semicircular lateral impression 

 deep and brownish; posterior process slender, strongly decurved, extending 

 beyond apex of abdomen and halfway to tips of tegmina. 



Tegmina and wings entirely hj'aline. Underparts of body and legs yellow- 

 green. 



Length, including tegmina, 9 mm.; width between tips of horns, 5.5 mm. 



Internal male genitalia. Styles with anterior part weak, strongly 

 narrowed near middle of connective, then much widened into the 

 large posterior portion, which ends in an oblique and serrate tip, 

 both margins of the caudal half of the posterior portion bearing 

 long hairs; connective long and rather narrow, folding longitudi- 

 nally, and with the usual basal incision; cedagus, viewed laterally, 

 with basal process long and slender, with a distinct knob at point of 

 attachment to the connective, the ventral process rather narrow, 

 tapering gradually to subacute tip, functional orifice covering the 

 middle third of the ventral side. 



Distribution. Van Duzee reports this species from Ontario, Mas- 

 sachusetts, New York, New Jersey, Pennsylvania, Virginia, North 



