560 N. C. AGR. EXP. STA. BUL. 239 
Holotype and five additional males and six females, Colombia, 1941 (L. 
Richter) (NCS). Holotype on indefinite loan to USNM from NCS. 
F. melanota, n. sp., has more black on the pronotum than other species of 
the genus. The two pairs of processes at and near the apex of the aedeagus 
will serve to distinguish males of melanota from other species in the genus. 
Fusigonalia optata, NEW SPECIES 
FIGURE 458, PAGE 558 
Length of male 6.3-6.7 mm, female unknown. Head with median length of 
crown varying from seven-tenths to approximately eight-tenths interocular 
width and from slightly more than four-tenths to one-half transocular width, 
antennal ledges in lateral view with anterior margins convex or rectilinear. 
Thorax with pronotal width equal to or greater than transocular width of 
head. Male plates with uniseriate macrosetae; style extending posteriorly 
much farther than connective, which is merely a transverse bar, style tapered 
and truncate at apex; aedeagus curved smoothly dorsally, with a pair of short, 
slender, acute processes arising ventrally on shaft beyond its midlength, ex- 
tending almost parallel to shaft; paraphyses absent. 
Crown with median black vitta not as broad as in F. melanota, n. sp. 
(above), its lateral margins strongly convergent anteriorly, the median vitta at 
posterior margin of head with width less than the combined adjacent widths 
of yellow vittae which separate it from the anteocular black vitta on each side; 
the yellow vittae extending posteriorly over pronotum to include basal 
scutellar angles and to unite with yellow claval vitta (see generic description); 
corial yellow vitta not extending anteriorly nearly as far as axillary sclerites; 
transverse anteapical band interrupted, consisting of two spots, midcostal 
marking amber; face with black anteocular band extending across anterior 
margin of antennal ledge and tapering to a point; remainder of face, venter, 
and legs, pale yellow, dorsal portion of thoracic pleura black and continuous 
with black lateral pronotal margin. 
Holotype male, Rurrenabaque, Beni, Bolivia (W. M. Mann), Mulford 
Biological Exploration, 1921-22, and a pair of specimens im copula, Callanga, 
Peru (USNM). Five males, Chanchamayo, Peru, July 22, 1960 (C. Ramirez); 
one male, same data, except collector (J. Salazar) (NCS). One male, 10 mi. 
southwest of Las Palmas, Hudnuco, Peru, 1,000 m., September 17, 1954 (E. I. 
Schlinger and E. S. Ross); and one male, Monson Valley, Tingo Maria, Peru, 
October 26, 1954 (same collectors) (CAS). 
F. optata differs from all other species in the genus in its lack of paraphyses. 
The form of the aedeagus of the male is also distinctive. 
Fusigonalia pachaca, NEW SPECIES 
FIGURE 461, PAGE 562 
Length of male 6.6-7.3 mm. Head with median length of crown varying 
from slightly less than one-half to slightly more than one-half interocular 
