100 U.S. NATIONAL MUSEUM BULLETIN 2 83 



Similar to the female with the usual sexual differences; antennal 

 plume dark brown. Genitalia (fig. 79i-k) with aedeagal sclerites long 

 and slender, in some mounts appearing slightly expanded toward 

 tip, in some with short slender extension from the basal knoblike 

 swelling; paramere with basal section stout and knoblike, abruptly 

 bent mesad at proximal fourth, then gradually curved ventrad and 

 laterad and ending in a blunt distal point. 



Distribution. — Indonesia; Philippines, Taiwan. 



Types.— Holotype male, allotype female, Bogor, West Java, Indo- 

 nesia, 28 Nov. 1959, R. T. Adiwinata, light trap (USNM 69476). 

 Paratypes, 7 males, 8 females, all taken in light traps. INDONESIA: 

 Java, same data as type, 1 male. Java, Djakarta, May-June 1958, 

 D. M. Rees, 1 female. PHILIPPINES: Luzon Pampanga Prov., 

 Clark Air Base, Sept.-Oct. 1957, I. Balatbat, 6 males, 6 females. 

 TAIWAN: Kaohsiung, Chao-chow, Aug. 1959, S. M. K. Hu, 1 female. 



Additional specimens. — PHILIPPINES: Luzon, Laguna Prov., 

 Los Banos, 20 Sept. 1959, L. W. Quate, light, 1 female (pinned). 



Discussion. — Stilobezzia pictipes Kieffer from Australia is closely 

 related with similar features of structure and coloration, but it is a 

 much larger species, the femora all bear intense subapical dark rings, 

 and in the male genitalia, the aedeagal sclerites are more arcuate, 

 and the parameres are shaped differently with the basal knob directed 

 laterally and bearing an angular platelike anterior process and the 

 distal tip abruptly bent; also the mesal lobe of the basistyle bears a 

 blackish anterior flange turned ventrad. 



Poikiloptera Group 



Diagnostic characters (figs. 11-12, 80-81). — Eyes narrowly 

 separated. Antennomeres IV-X with bases broadly pale, distal con- 

 striction present; XV with terminal seta. Palpi dark brown, tip of V 

 usually paler, III with round sensory pit. Thorax dull, with pattern 

 of whitish pruinose patches and sometimes with pale or brown speck- 

 ling; scutum projecting anterodorsally with distinct tubercle. Legs 

 moderately slender, hind tibia with strong extensor bristles; hind 

 basitarsus with strong basal spine, I— III with strong black ventral 

 spines; IV bilobed, each lobe with short stout spine; V without ventral 

 batonnets; claw long and slender with long basal tooth. Wing without 

 macro trichia; IRC poorly formed, sometimes obsolete; distinctive 

 pattern of dark spots present, including 3 larger ones, over IRC, 

 near tip of R 4+5 , and subapically in cell R 5 ; small linear spots also 

 present subapically on veins M 1; M 2 , M 3+4 , and Cui. Two ovoid 

 functional spermathecae plus a linear rudimentary one. Female gen- 

 ital sclerotization with narrow median cleft on sternum IX, internal 



