1072 N. C. AGR. EXP. STA. BUL. 239 
line between anterior eye angles, each equidistant from median line of crown 
and adjacent anterior eye angle or slightly closer to latter, crown without a 
transverse concavity across ocelli, without a median fovea, and without 
sculpturing other than muscle impressions; lateral clypeal sutures extending 
onto crown and attaining ocelli; antennal ledges not protuberant in dorsal 
view, in lateral view with anterior margins oblique and convex; clypeus con- 
vex, muscle impressions distinct, transclypeal suture not complete, clypellus in 
profile with its lower portion more nearly horizontal than remainder of face. 
Thorax with pronotal width greater than transocular width of. head, lateral 
margins convergent anteriorly, dorsopleural carinae complete, posterior 
margin shallowly concave, disk without sculpturing or setae; scutellum 
without sculpturing behind transverse sulcus. Forewing without a membrane 
(but dark apically, see color descriptions below), veins distinct, with three 
closed anteapical cells of which bases of at least outer two are proximal to 
claval apex, and four apical cells, the base of the fourth not or only slightly 
more proximal than base of third, without an anteapical plexus of veins, tex- 
ture opaque. Hindlegs with femoral setal formula 2:1:1, length of first tar- 
somere equal to or slightly greater than combined length of two more distal 
tarsomeres and with two parallel rows of small setae on plantar surface. 
Male genitalia: Pygofer well produced, with an apical process, posterior 
margin and chaetotaxy variable interspecifically. Plates slender, triangular, ex- 
tending posteriorly as far as pygofer apex, each with numerous uniseriate 
macrosetae. Style extending posteriorly to a variable degree in relation to apex 
of connective, with a distinct lobe at midlength, apex obliquely truncate. Con- 
nective Y-shaped with arms widely divergent. Aedeagus variable interspeci- 
fically, with at least two apical processes. Paraphyses absent. 
Female abdominal sternum VII moderately produced with posterior margin 
broadly convex. Genital chamber without sclerites. Ovipositor without a 
posteroventral lobe on first valvifer; second valvulae as in Catagonalia Evans. 
Pygofer as in Catagonalia (fig. 8687). 
Species of Tantogonalia, new genus, are dark green or bluish-green with the 
crown orange or dull yellow and with black markings on crown and face. 
The range of Tantogonalia is Colombia and Paraguay. Tantogonalia is related 
to Catagonalia Evans and Lautereria, new genus. The males lack the basidorsal 
pygofer process of Lautereria; and the females lack the posteroventral valvifer 
lobe found in the last. Catagonalia males have at least vestiges of paraphyses, 
which are absent in males of Tantogonalia and the setae of the plates are less 
numerous than in Tantogonalta. 
SPECIES OF TANTOGONALIA 
lateralis, n. sp. Paraguay. 
praecalva, n. sp. Colombia, Paraguay. 
KEY TO SPECIES OF TANTOGONALIA 
Crown with ground color orange, scutellum heavily marked with black; 
male pygofer not lobate apically ................ lateralis, n. sp., page 1074 
Crown with ground color dull yellow, scutellum dull yellow, unmarked; 
male pygofer with apex bilobate ............... praecalva, n. sp., page 1074 
