664 N. C. AGR. EXP. STA. BUL. 239 
Color of dorsum, including forewings, tan (type) to tan anteriorly but with 
forewings dull brick-red, a few irregular vermiculate markings near humeral 
angles in both clavus and corium, a number of irregular small black spots 
across wing at midlength in type, claval suture and some irregular markings 
before bases of apical cells, black; face, pleura, and legs stramineous (type) to 
dull brown, tarsi black. 
Holotype and one additional male, Coroico, Bolivia (OSU); and one fe- 
male, Mapiri, Bolivia (MMB). 
S. ibena is closely related to S. tenofa, in the treatment of which dis- 
tinguishing characters are discussed. 
Selvitsa vermiculata, NEW SPECIES 
FIGURE 542, PAGE 665 
Length of male 11.2 mm, of female 10.4-10.5 mm. Head with median 
length of crown from slightly more than four-tenths to one-half interocular 
width and from more than one-fourth to less than one-third transocular 
width, crown concave or not between ocelli, surface without sculpturing; cly- 
peus convex, transclypeal suture entire or not. Pronotum with dorsopleural 
carina not attaining posterior margin of eye. Forewing with veins not very dis- 
tinct, base of fourth apical cell variable (even in a single specimen) with re- 
lation to base of third apical cell. Other external structural characters as in S. 
tenofa, n. sp. 
Male pygofer with apical margin broadly convex and bearing at midlength 
a reduced triangular process, with a number of macrosetae on posterior half 
of disk; plates not extending as far posteriorly as apex of pygofer, each with a 
number of short multiseriate macrosetae; style not extending as far posterior- 
ly as apex of connective, without a preapical lobe, slightly angulate at apex; 
connective short, Y-shaped; aedeagus slender, of almost uniform width 
throughout length of shaft, which is curved dorsally, apex with a pair of sym- 
metrical spinelike processes; paraphyses absent. Female abdominal sternum 
VII with posterolateral lobes poorly developed, much as in tenofa. 
Color of crown, anterior portion of pronotum, and most of scutellum, dull 
yellow, crown occasionally (indistinctly in holotype) more darkly marked on 
areas of muscle impressions, posterior two-thirds of pronotum brick-red with 
numerous dots and short transverse markings yellow; forewings brick-red, 
with numerous small pale spots and vermiculations which tend to be ag- 
gregated into several poorly-delimited larger spots; face, pleura, and legs, uni- 
colorous pale yellow to sordid brown (an atypical specimen with a pair of 
longitudinal, poorly-delimited black stripes over muscle impressions of cly- 
peus). 
Holotype male, Rancho Grande, near Maracay, Venezuela, March 18, 
1946; a topotypic female, June 20, 1946; and one female, Tropical Research 
Station, New York Zoological Society, No. 45210, all in Bronz Zoo. One fe- 
male, Aquas Negras, Distrito Federal, (Venezuela) (S. Vivas Berthier), 
December, 1936 (USNM). 
