504 N. C. AGR. EXP. STA. BUL. 239 
Mesogonia valida, NEW SPECIES 
FicurE 414, PAGE 503 
Length of male 5.6-6.0 mm. Head with median length of crown from six- 
tenths to less than seven-tenths interocular width and from slightly more than 
one-third to slightly less than four-tenths transocular width, anterior margin 
subangulate in dorsal view, carina distinct or not at transition from crown to 
face, ocelli located slightly behind a line between anterior eye angles, each 
either equidistant from median line and adjacent anterior eye angle or slightly 
closer to latter, crown transversely shallowly concave between ocelli and 
apical margin, lateral clypeal sutures barely extending onto crown; antennal 
ledges with anterior margins vertical in lateral view; clypeus convex medially, 
muscle impressions distinct, face not pubescent beneath except for sparse very 
fine pubescence at clypellar apex, transclypeal suture indistinct, clypellus not 
tumid. Thorax with pronotal width approximately equal to transocular width 
of head, dorsopleural carina extending anteriorly as far as eye margin or not; 
forewing coriaceous with veins not distinct. 
Male pygofer strongly produced, apical margin narrowly rounded, with 
very few macrosetae parallel to posteroventral margin, without processes, 
plates not extending as far posteriorly as pygofer apex, without a dorsal lobe 
in lateral view, each gradually tapered in basal half in ventral view, with few 
uniseriate macrosetae; style extending posteriorly much farther than apex of 
connective, without preapical lobe, gradually narrowed to acute apex and 
with apical portion very slightly curved; connective Y-shaped with arms 
widely divergent; aedeagus with shaft very short, enlarged apically, without 
processes; paraphyses long-stalked with slender tapering rami. Female 
unknown. 
Crown and anterior third of pronotum dull yellow, with a large black 
marginal spot on each side of crown near apex; scutellum dull yellow with a 
basal black spot on each side near basal angle; disk of pronotum and fore- 
wings dull green, costal margin of forewing black through more than basal 
half its length and bordered by a submarginal contiguous yellow stripe; face 
yellow except clypeus which is dark with a median yellow stripe and (usually) 
clypellus which is suffused with fuscous (type); thoracic pleura and legs 
yellow, the former marked with black. 
Holotype male and six additional males, Archidona, Ecuador (R. Haensch) 
(USNM). 
M. valida, n. sp., is closely related to M. paganula (Jacobi) (fig. 412) from 
which it may be distinguished by its rounded aedeagal apex, its shorter styles 
in comparison to the length of the connective, and its gradually tapered male 
plates. 
Mesogonia callangana, NEW SPECIES 
FicurRE 415, PAGE 503 
Length of male 7.1-7.3 mm. Head with median length of crown less than 
six-tenths interocular width and less than one-third transocular width, ocelli 
