184 N. C. AGR. EXP. STA. BUL. 239 
parallel, posterior margin rectilinear or slightly convex, disk without sculptur- 
ing, scutellum not striate behind transverse sulcus. Forewing with membrane 
subhyaline, veins elevated, distinct. Hindleg with femoral setal formula 2:1:1; 
length of first tarsomere approximately equal to combined length of two more 
distal tarsomeres. 
Male pygofer moderately produced, posterior margin narrowly rounded 
posterodorsally and with an apical process extending mesad, almost attaining 
median line, chaetotaxy as in A. invenusta, n. sp. Plates not extending 
posteriorly as far as pygofer apex, with uniseriate macrosetae and a few 
microsetae. Style in broadest aspect with apex rounded. Aedeagus with an 
elongate tapered process arising near base of shaft and extending almost to its 
apex, an anteapical acute dorsal process extending beyond gonopore and 
slightly decurved, and an anteapical short lobate ventral process. Female ab- 
dominal sternum VII with a narrow median lobe that is angular apically. 
Crown, pronotum, and scutellum dark orange, with a basal and an apical 
black spot on median line of crown and a median black spot on disk of 
scutellum, with varying less pronounced dark markings on crown and pro- 
notum; forewing darker orange with dull yellow variable stripes in some of the 
cells, more conspicuous in the brachial cell; face and thoracic pleura con- 
colorous with crown and pronotum; legs darker orange to tan except darker 
apices. 
Holotype, one additional male, and one female, ‘‘Chapada’’, Brazil, April, 
and one female, same data except date which is May (C. F. Baker col- 
lection); one female, Posadas, Misiones, Argentina, November, 1941 
(Daguerre) (all USNM). 
A. grammaca, n. sp. differs markedly from other species of the genus in the 
form of the aedeagus of the male. 
Amblyscarta invenusta, NEW SPECIES 
FIGURE 146, PAGE 188 
Length 10.0-11.0 mm. Head moderately produced for the genus, median 
length of crown varying from slightly more than one-third to more than one- 
half interocular width and from slightly less than one-fourth to slightly more 
than one-third transocular width, antennal ledges not protuberant, clypeus 
slightly flattened, transclypeal suture entire. Pronotum with lateral margins 
parallel, posterior margin weakly convex or weakly concave, disk not punctate 
nor rugose, scutellum not striate behind transverse sulcus. Forewing with 
membrane which is fumose apically, veins not elevated. Hindleg with femoral 
setal formula 2:1:1 or 2:1:1:1, length of first tarsomere varying from slightly 
less than to slightly greater than combined length of more distal tarsomeres. 
Male pygofer weakly produced, posterior margin broadly convex except for 
a slightly concave portion below apex of dorsal margin, without processes, 
with macrosetae submarginal along posterior and posteroventral margin, disk — 
with number of elongate microsetae. Plates extending posteriorly beyond apex 
of pygofer, with multiseriate macrosetae on ventral surface and elongate 
microsetae along lateral margin. Style in broadest aspect with apex obliquely 
