176 N. C. AGR. EXP. STA. BUL. 239 
smaller towards apex of valvula, each with secondary teeth; with postero- 
dorsal and posteroventral anteapical denticles. 
Gorgonalia, new genus, is known only from Mexico and Guatemala. The 
form of both male and female genitalia suggest a possible relationship to 
Begonalia, new genus. There is a considerable amount of variation in color, 
both in the arrangement of the dark markings of the crown, and in the mark- 
ings of the forewings, but in the short series of specimens available, I have 
been unable to associate these with morphological differences. 
My identification of Tettigonia strena Stal is based on a study of the lecto- 
type female and specimens later associated with my illustrations of it. The 
basis of my interpretation of Tettigonta conspissata Fowler is a female topotype, 
compared with the lectotype of that nominal species. 
I place Tettigonia tessellata Signoret in Gorgonalia because of the similarity be- 
tween Signoret’s original illustration to G. sirena Stal. This disposition 
warrants further study. 
SPECIES OF GORGONALIA 
strena (Stal), 1864a:76 (Tetttgonia). Mexico. New combination. 
conspissata (Fowler), 1899d:241 (Tetttgonia). New synonymy. 
tessellata (Signoret), 1855d:790 (Tettigonia). Mexico. New combination. 
22. Genus AMBLYSCARTA STAL 
Figures 137-158 
Tettigonia (Amblyscarta) Stal, 1869a:71. Type-species: Tettigonia modesta Fabricius, by sub- 
sequent designation of Kirkaldy, 1907d:89. 
Length 9.6-15.4 mm. 
Head usually only slightly produced, median length of crown from one-fifth 
to slightly more than one-half interocular width and from slightly less than 
one-fifth to slightly more than one-third transocular width, anterior margin 
broadly rounded in dorsal view, without a carina at transition from crown to 
face, ocelli located behind a line between anterior eye angles, each closer to 
adjacent anterior eye angle than to median line, crown convex, with a slight 
transverse concavity across ocelli, without a median fovea and without 
sculpturing or setae, lateral clypeal sutures extending onto crown and at- 
taining ocelli (exception: grammaca, n. sp.); antennal ledges usually not pro- 
tuberant, in lateral view with anterior margins rectilinear and vertical or 
slightly oblique, ledges not carinate dorsally; clypeus convex or slightly flat- 
tened, muscle impressions distinct, face without pubescence, transclypeal 
suture almost always entire, clypellus not strongly produced but in profile 
with lower portion abruptly curved posteriorly. 
Thorax with pronotal width less than transocular width of head, lateral 
margins parallel or slightly convergent anteriorly, dorsopleural carinae com- 
plete, posterior margin convex or concave, disk with or without punctures or 
rugosity, not pubescent; scutellum usually not striate behind transverse 
sulcus. Forewing with or without a membrane, veins distinct, often elevated, 
with four apical cells, the base of fourth usually more proximal than base of 
