NO. 3535 MICROLEPIDOPTERA, IX — OBRAZTSOV 591 



of second segment cream white. Head cream white with a large, 

 black, triangular spot on vertex. Thorax cream white with black 

 spots, one anteriorly, and two posteriorly; tegula black with cream- 

 white emargination. Forewing orange with costal and apicoterminal 

 areas cream white ; markings black, arranged as follows : eleven streaks 

 on costa; one streak on apex, successively connected with two terminal 

 streaks below apex and a broader, straight, longitudinal, subterminal 

 streak reaching to imaginary line drawn between third costal streak 

 (counting from wing apex) and upper tornal streak, and thus forming 

 a trivaricate fork with long "handle"; two more terminal streaks 

 below this fork, and two tornal streaks, occasionally connected by 

 their tips; two round or slightly elongate subterminal spots internad 

 of last terminal and upper tornal streaks, connected with themselves 

 and occasionally with mentioned streaks; a minute dot basad or 

 dorsobasad of "handle" of fork; a minute dot dorsad of tip of sixth 

 costal streak (counting from wing apex) ; ciUa black in front of streaks, 

 and white in interspaces. Length of forewing: male 11 mm.; female 

 14 mm. Hindwing orange with nine black spots on margins; two 

 largest of them on end of costa and wing apex; remaining spots along 

 termen and tornus; interspaces of upper seven of these spots yellowish 

 wliite; ciha concolorous with spots and interspaces. 



Male genitalia. — Uncus with a long stalk ending with a dilated, 

 ovate-calathiform apex bearing a thorn directed ventrad. Valva 

 subrectangular, slightly oblong with external margin rotundate; 

 saccidus shghtly dilated at base and narrowly prolonged along ventral 

 margin (of a folded) valva. Aedeagus rather slender with a narrow 

 apical process; cornutus with an apical cap and narrow, basal exten- 

 sion; cuneus indiscernible. 



Female genitalia. — Sinus vaginalis flatly infundibular; lamella 

 antevaginalis with a rotundate-trapezoidal dilatation at middle. 

 Antrum slightly longer than broad, inciu'ved laterally; two lateral 

 colhculi touching each other at middle of antrum. Cervical portion 

 of corpus bursae striated; no cestum discernible; corpus bursae narrow, 

 moderately long: no signum. 



Types. — Holotype, cf (genitalia slide 8668), and allotype, 9 

 (genitaha sUde 8669), Costa Rica, April 1924 (Janson) ; BM. 



Remarks.— This new species is known in two specimens, a male 

 and a female, well matching each other. Very characteristic of the 

 species is a longitudinal streak in the subterminal area of the forewing, 

 looking like a "handle" of a trivaricate fork formed by the apical and 

 two terminal streaks. The species might remind one of maenas Mey- 

 rick, but in the latter the longitudinal steak is formed by the upper 

 terminal streak, is broader and shorter than in pseudomaenas, and 



