828 N. C. AGR. EXP. STA. BUL. 239 
Female abdominal sternum VII with posterior margin produced and sub- 
obtusangular but rounded at apex. Ovipositor with second valvulae each 
broad throughout portion beyond basal curvature and with conspicuous dor- 
sal slanting quadrate teeth which extend almost to acute apex. 
Specimens of Amphigonalia have been studied from localities from British 
Colombia and northeastern, southeastern and central U. S. A., from Nevada, 
Texas, Arizona, California, and from Mexico, and Guatemala. 
Amphigonalia, new genus, is the segregate Oman (1949a:73) and others 
referred to as Neokolla Melichar. But China’s (1938d:134) designation of 
Tettigonia hieroglyphica Say as type-species of Neokolla and Ball’s (1901e:17 and 
plate III, fig. 1) interpretation of hieroglyphica dictate the relegation of Neokolla 
to synonymy under Graphocephala Van Duzee. Amphigonalia belongs to the 
Isogonalia complex of genera, discussed in the treatment of the latter. 
Amphigonalia is distinct in that paraphyses are absent, being represented by 
aedeagal processes, and also distinct in the presence of dorsal pygofer 
processes. 
Most species of Amphigonalia, new genus, are similar externally to North 
American Graphocephala of the hieroglyphica group of species. Amphigonalia is dis- 
tinct externally from these in its elongate-loop-shaped markings of the crown. 
As mentioned in the introductory portion of Part 1 (p. 16) of the present 
work, the knees of the posterior legs in rest position do not extend forward to 
the posterior proepimeral margins in some specimens of this genus, a varia- 
tion shared with a number of specimens of Graphocephala Van Duzee formerly 
placed in Keonolla Oman. 

FIGURES 668, 669.—668, Amphigonalia pusilla (DeLong and Currie), holotype. 
669, A. notaticeps (Fowler), lectotype. 
vi 
