98 



THE UNIVERSITY SCIENCE BULLETIN. 



Internal male genitalia: Styles with proximal portion large and 

 scarcely tapering, large lobes for connection to connective, distal half 

 first curving outward and then with a seeming terminal inwardly pro- 

 jecting segment which is toothed on the inner margin near the apex, and 

 then curved outward at the extreme tip; connective T-shaped, with the 

 cross bar heavy; oedagus consisting of a T-shaped heavy piece vdth a 

 very short standard, from the sides of which extend out two long, 

 tapering and twisting processes, the points of which extend laterad; a 

 heavy characteristically shaped chitinous process extends downward from 

 the base of the anal tube. 



Distribution: Occurs throughout the eastern portion of the 

 state as shown by the following map : 



Hosts: This is a very general feeder, but because it occurs 



on so many cultivated crops, often in very large numbers, it 



is to be considered an insect of economic importance. The 



writer has taken it on com, many native grasses and at lights. 



Gibson gives the following hosts : Wheat, barley, oats, alfalfa, 



Johnson grass, kafir corn, sorghum, cowpfeas, Bermuda grasses 



and many native grasses. Osborn gives rye, bluegrass and 



brome grass as additional hosts. It is also known to feed on 



timothy. 



Drseculacephala angulifera (Walk.). 



Tettigonia angulifera Walk., List Homop., ili, p. 771, 1851. 



Diedrocephala angulifera Sign., Ann. Soc. Ent. Fr., ser. 3, ii, p. 727, pi. 21, fig. 14, 

 1851. 



Diedrocephala angulifera Van D., Ent. News, v, 156, 1894. 



Drceculacephala angulifera Ball, Proc. la. Acad. Sci., viii, p. 69, pi. 7, fig. 4, 1901. 



Drteculacephala angulifera Osb., 20th Rept. N. Y. St. Ent., p. 511, 1905. 



Drceculacephala angulifera Van D., Ent. News, xxvi, p. 178, 1915. 



Drmculacephala anguUfera Osb., Me. Agr. Exp. Sta., Bui. 238, p. 102, 1915; Bui. 

 248, p. 78, 1916. 



Drceculacephala angulifera Van D., Cat. Hemip. N. A., p. 603, 1917. 



Drceculacephala angulifera Weiss, Ent. News, xxix, p. 310, 1918. 



Drceculacephala angulifera Ols., Bui. Am. Mus. Nat. Hist., xxxviii, p. 6, 1918. 



