376 N. C. AGR. EXP. STA. BUL. 239 
Soosiulus regalis, NEW SPECIES 
FIGURE 299, PAGE 375 
Length of male 9.4 mm. Head with median length of crown slightly more 
than two-thirds interocular width and slightly less than one-half transocular 
width, ocelli located behind a line between anterior eye angles, each ap- 
proximately equidistant from adjacent anterior eye angle and median line of 
crown; clypeus with muscle impressions not very distinct. Forewing with 
membrane including inner apical cell and apical portions of second, third, 
and fourth apical cells. Male pygofer without microsetae; plates very short, 
not extending nearly as far posteriorly as pygofer apex, with uniseriate 
macrosetae more numerous than in S. interpolis, n. sp.; style extending 
posteriorly farther than apex of connective; connective elongate, triangular, 
with a median keel in apical two-thirds; aedeagus symmetrical, regularly and 
slightly curved in lateral view, with ventral margin regularly concave, apex 
scarcely expanded, with a ventroapical acute process which is directed ven- 
trally; paraphyses long-stalked, with rami shorter than stalk. Female un- 
known. Other structural characters as interpolts. 
Color of dorsum and forewings bright orange, crown with a round spot on 
each side behind apex and a quadrate spot at base on each side of median 
line, broad anterior margin of pronotum, a pair of oval spots extending from 
hind margin of pronotum across basal angles of scutellum onto humeral por- 
tions of forewings, commissural margin of clavus, a stripe in basal two-thirds 
of brachial cell, usually a shorter and narrower one between latter and costal 
margin (not present in holotype), an oval to quadrate marking in anteapical 
cells, apical membrane, and part of costal margin, black; occasionally (not in 
holotype) with a broad subcostal hyaline amber area. 
Holotype and 20 additional males, Fonteb6a, Amazonas, Brazil (RMS). 
S. regalis, n. sp., is the largest species in the genus. It may be separated 
from other species in the genus by the characters used in the key. 
Soosiulus falcifer, NEW SPECIES 
Figure 301, PAGE 377 
Length of male 7.5 mm, of female 7.0-7.3 mm. Head with median length of 
crown from six-tenths to three-fourths interocular width and from slightly less 
than four-tenths to slightly less than one-half transocular width, ocelli located 
slightly behind a line between anterior eye angles, each approximately equi- 
distant from adjacent anterior eye angle and median line of crown, clypeus 
with muscle impressions not very distinct. Other external structural characters 
as in S. interpolis, n. sp. Male pygofer with a number of microsetae parallel to 
and near ventral margin, in addition to discal macrosetae; plates not ex- 
tending nearly as far posteriorly as pygofer apex, with few (five in holotype) 
uniseriate macrosetae; style extending posteriorly farther than apex of con- 
nective; connective very broad, subquadrate, not keeled; aedeagus sym- 
metrical, shaft very slightly curved and with ventral margin regularly and 
slightly concave in lateral view, with a ventroapical elongate tapering acute 
