404 Illinois State Laboratory of Natural History. 



32. C. ILLINOIENSIS, n. sp. 



Color brownish yellow : tegmina and wings transparent 

 yellow, punctured. Head broad, nearly triangular, basal border 

 a little convex ; orange yellow, lightly sculptured ; eyes me- 

 dium, black ; ocelli yellowish red, a trifle nearer to each other 

 than to the eyes. Prothorax above the head vertical, slightly 

 convex at upper part in front, with two small tubercles on 

 convexity ; on each side a rounded, long acute horn curving 

 slightly upward and outward, the tip a trifle backward, these 

 horns darker in color ; at base of horns, on each side, extend- 

 ing on the anterior surface, a smooth, horizontal impression; 

 superior base of horns depressed, leaving the prothorax at that 

 part convex ; a percurrent median carina ; posterior process 

 long, compressed, apex acuminate, very slender, exceeding apex 

 of abdomen, sloping toward tip ; posterior half of carina con- 

 colorous with lateral horns ; on each side a semicircular im- 

 pression of a lighter color ; highest point at middle. Tegmina 

 yellow, transparent, extending much beyond tip of abdomen. 

 Below, concolorous with head, except ovipositor, which is red- 

 dish brown ; legs and feet yellow. Length 7.5 mm. 



Described from one ? specimen. Type in collection of 

 the author. Collected by C. W. Stromberg. 

 A'afe.— Galesburg, 111. {Stromberg). 



33. C. CONSTATS, Walk. 



1851. Thelia constans. Walk. List Hom. B. M. 503, 27. 

 1869. Ceresa constans. Stal, Bid. Memb. Kiln. 245, 5. 

 1877. Ceresa constans. Butler, Cist. Ent. ii, 215, 4. 

 Hah.—U. S. ( Walker). 



34. C. BASALis, Walk. 



1851. Ceresa basalts. Walk. List. Hom. B. M. 527, 12. 

 1809. Ceresa basalis. St3,l, Bid. Memb. Klin. 245, 6. 

 1877. Ceresa basalis. Butler, Cist. Ent. ii, 215, 5. 

 Hah.— 2^. S. (Walker). 



35. C. ALBIDOSPARSA, Still. 



1859. Ceresa albidosparsa. St^l, Eug. Resa Omk. 



Jord. Hem. 283, 8<>. 

 1869. Ceresa albidosparsa. Still, Bid. Memb. Kiin. 



245, 7. 



