380 N. C. AGR. EXP. STA. BUL. 239 
marking which is triangular or lenticular, claval suture with a black stripe 
which is broader near base, tapering and evanescent apically, with a broader 
black corial stripe extending from basal third almost to bases of apical cells 
and connected (holotype) or not with claval suture by a short transverse black 
marking; membrane and costal margin very narrowly, black. 
Holotype male, two females, and one specimen without abdomen, Rio 
Autaz, Brazil (RMS). 
S. azatus, n. sp., is closely related to S. falcifer, n. sp., from which the male 
may be most readily distinguished by its shorter apical aedeagal process and 
its irregularly concave ventral aedeagal margin in lateral view, and by the 
slight differences in the paraphyses described above. The abdominal sternum 
VII of the female is much more convex than in falcifer and lacks the ante- 
apical median protuberance found in the latter. 
Soosiulus umaritubanus, NEW SPECIES 
FicuRE 303, PAGE 379 
Length of male 6.9 mm, of female 6.7-7.0 mm. Head with median length of 
crown from six-tenths to seven-tenths interocular width and slightly more 
than four-tenths transocular width, ocelli located on a line between anterior 
eye angles, each approximately equidistant from median line of crown and ad- 
jacent anterior eye angle; clypeus with muscle impressions not very distinct. 
Other external structural characters as in S. interpolis, n. sp. (p. 374). Male 
pygofer with a number of microsetae near ventral margin, in addition to dis- 
cal macrosetae; plates not extending posteriorly nearly as far as pygofer apex, 
with very few uniseriate macrosetae; style extending posteriorly to a point 
more than half length of connective; connective broadly expanded in apical 
two-thirds, with a minute inverted Y-shaped keel at apex; aedeagus sym- 
metrical, shaft nearly straight, rounded dorsally at apex, with an apicoventral 
short broad acute process; paraphyses not stalked, in lateral view directed 
posteriorly, abruptly narrowed at apex and with acute tips pointed postero- 
ventrally. Female abdominal sternum VII with posterior margin transversely 
rectilinear each side of a median convex posterior projection which bears an 
anteapical depression, with a convex protuberance on midline near mid- 
length. 
Color of head and pronotum as in S. interpolis, n. sp. (p. 374) except that 
there are no black spots near lateral pronotal margins; scutellum with basal 
angles black, usually delimiting a median orange sagittate area; forewings 
each with a humeral arcuate marking which is narrowly connected along 
commissural margin with claval transcommissural lenticular claval spot, claval 
suture narrowly at base, gradually widely near apex, black, and with an ante- 
apical prolongation of the black marking extending posterolaterally into ante- 
apical cells, membrane black; costal margin concolorous with adjoining 
corium. 
Holotype female, and one topotypic female, Umarituba, Amazonas, Brazil, 
one female, San Gabriel, Amazonas, Brazil, and one male, Rio Autaz, 
Amazonas, Brazil (RMS). 
