1094 N. C. AGR. EXP. STA. BUL. 239 
Specimens of Bucephalogonia vary greatly in color. The crown varies from 
conspicuously marked with black to unmarked dull yellow. The pronotum 
and scutellum may also be entirely without black markings. The coriaceous 
portion of the forewings varies in extent (see description above) and in color, 
from green to black. 
Specimens of B. xanthophis (Berg), the only known species, have been ex- 
amined from the region from Santa Fé and Cérdoba to Jujuy, Argentina 
northeastward to Minas Gerais, Brazil. A good series of specimens has also 
been examined from Santa Cruz de la Sierra, Bolivia. I have been unable to 
find probable relationships to other genera based on either the male or female 
genital structures. 
One collection was from Schinus “‘terebranthicus” {terebinthifolius Raddi]. 
I know only the type-species, which is identified here on the basis of 
specimens compared with a specimen bearing a type label from Museo de la 
Plata, Argentina. Another specimen from the same collection, labeled as type 
of Tettigonia guaranitica Berg, is a synonym. 
SPECIES OF BUCEPHALOGONIA 
xanthophis (Berg), 1879d:249 (Tettigonia). Argentina. 
guaranitica (Berg), 1884a:24 (Tettigonia). New synonymy. 
155. Genus SERPA Distant 
FIGURE 884 
Serpa Distant, 1908a:529. Type-species: Tettigonia plumbea Walker, (1851b:754) by 
original designation and monotypy. 
Length 9.9-10.4 mm. 
Head not produced, anterior and posterior margins of crown parallel, me- 
dian length of crown four-tenths interocular width and slightly less than one- 
fourth transocular width, without a carina at transition from crown to face, 
ocelli located behind a line between anterior eye angles, each closer to adja- 
cent anterior eye angle than to median line of crown, crown with a shallow me- 
dian concavity and a shallow concavity on each side adjoining eye, surface not or 
weakly sculptured and without pubescence; antennal ledges slightly protuber- 
ant, each with a horizontal keel in lateral view; clypeus strongly concave 
medially, muscle impressions not distinct, clypellus strongly convex in lateral 
view, contour of its lower portion more nearly horizontal than profile of remain- 
der of face. 
Thorax with pronotal width less than transocular width of head, lateral 
margins parallel, dorsopleural carinae incomplete, posterior margin shallowly 
concave, with a broad shallow concavity behind eye and a concavity above 
dorsopleural carina on each’ side, disk without distinct rugae; scutellum trans- 
versely striate behind transverse sulcus. Forewing with only inner apical cell 
membranous, veins not elevated, not distinct, with three anteapical cells of 
which the bases are proximal to claval apex, with a few supernumerary cross- 
veins; forewings of female in rest position exceeding apex of ovipositor. Hind- 
leg with femoral setal formula 2:1:1 and with some smaller setae among the 
