1054 N. C. AGR. EXP. STA. BUL. 239 
less than transocular width of head, lateral margins parallel or slightly con- 
vergent anteriorly. Forewing with membrane sharply delimited basally, in- 
cluding all of first, and apical portions of second, third, and fourth apical 
cells, veins obscure. Hindleg with femoral setal formula 2:1:1 or 2:1:1:1. 
Other characters, except genitalia, as in Borogonalia, new genus. 
Male genitalia: Pygofer well produced and strongly convex posterodorsally, 
with a number of macrosetae confined to the apical and anteapical region, 
pygofer processes absent. Plates elongate triangular, extending posteriorly 
almost as far as pygofer apex, without elongate microsetae, with uni- or mul- 
tiseriate macrosetae (variable interspecifically). Style elongate, extending 
posteriorly beyond apex of connective, twisted apically and hooklike in form, 
preapical lobe distinct. Aedeagus with shaft short, with one or two pairs of 
apical or ventral anteapical processes. Paraphyses poorly developed and 
poorly delimited, occurring as a single median partially sclerotized area 
behind connective. 
Female abdominal sternum VII elongate with posterior margin broadly 
convex at least medially. Genital chamber without sclerites or with a pair of 
very small sclerites between bases of first valvulae. Ovipositor with second 
valvulae each bearing quadrate primary teeth, each of which bears denticles, 
in all of portion beyond basal curvature, and with anteapical dorsal and ven- 
tral denticles, apex acute (much like illustration of Borogonalia impressifrons 
(Signoret) (fig. 851m)). 
Species of Tortigonalia are marked much as those of Borogonalia, new genus. 
In the females the face is pale except for a median dorsal black spot at transi- 
tion to crown. Association of sexes has been a most difficult problem, and 
field observations are needed to verify or refute the accuracy of this phase of 
this work. 
Species of Tortigonalia have been examined from northern Brazil, Ecuador, 
Peru, and Bolivia. Tortigonalia, new genus, is closely related to Borogonalia, new 
genus, in the discussion of which distinguishing characters are treated. 
In company with Juan Salazar, and Carlos Ramirez from the Estacién Ex- 
perimental in La Molina, Peru, I collected a series of 7. treva, n. sp., mostly 
from grasses, in Chanchamayo, Peru, near San Ramon. There are no other 
host plant data available. 
SPECIES OF TORTIGONALIA 
adunca, n. sp. Ecuador. 
chlorella, n. sp. Peru, Bolivia. 
hamata, n. sp. Peru, Bolivia. 
torta, n. sp. Peru, Bolivia, N. Brazil. 
treva, n. sp. Ecuador, Peru. 
KEY TO MALES OF TORTIGONALIA 
1. Aedeagus in caudoventral view with two pairs of apical processes 
adunca, n. sp., page 1055 
Aedeagus in caudoventral view with only one pair of apical 
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