84 U.S. NATIONAL MUSEUM BULLETIN 2 83 



margin of all segments. Spermathecae (fig. 7lh), 2 functional and 1 

 rudimentary, the two subspherical, usually intensely sclerotized, with 

 short slender necks; subequal, each measuring 0.056 mm by 0.048 mm. 

 Genital sclerotization as in figure 71/. 



Male.— Length of wing 1.29 (1.17-1.49, n = 31) mm. 



Similar to the female with the usual sexual differences; dorsal 

 abdominal pattern (fig. 7lg) more extensive. Genitalia (fig. llk-m) with 

 tergum IX short and rounded caudad; basistyle stout, the portion 

 distad of mesal swelling short; basidorsal process large and foot 

 shaped; dististyle shorter than basistyle and tapering to apex; aedeagal 

 sclerites shorter than parameres, each with slender base and moder- 

 ately broad apex; parameres intense sclerotized to apex, sinuate in 

 midportion with stout curved tips. 



Distribution. — India; West Pakistan to Japan, Indonesia, and 

 Ceylon. 



Material examined. — 459 specimens. 



CEYLON: Colombo, Kalutaluwewa (Med. Res. Inst.). 



INDIA: Calcutta (Das Gupta), reared from mud. 



INDONESIA: Java (Woglum); West Java, Bogor (Adiwinata); Djakarta 

 (Rees). 



JAPAN: Kyoto, Midoro Pond (Arnaud). 



MALAYA: Pahang, Kuala Singgora (Wharton) ; Perak, Pulau Pangkor (Traub) ; 

 Perlis, Kangar Rest House (Traub); Selangor, Kuala Lumpur (Hubert); Selangor, 

 Rantau Panjang. 4 mi. N. Klang (McClure); Singapore, Kg. Agas (Colless). 



NEPAL: Katmandu (Maldonado). 



NORTH BORNEO: Labuan Island (Colless). 



RYUKYU I.: Okinawa, Machinato-Naka Area (Earle) ; Uchitomari (Roth). 



TAIWAN: Koah-siung, Chao-chow (Hu). 



THAILAND: Ayudhya (ManopR.); Bangkok (Bangpo, Donmuang, Huay- 

 kwang, Pratomvan, Thonglo Dists.) (Scanlon) ; Chiang Mai (Notananda), Ampur 

 Muang (Scanlon), Ban Tin Doi (Gressitt), Doi Sutep (E. B. Thurman) ; Cholburi, 

 Bangphra (Scanlon); Khon Kaen (Elbel, Manop R.); Loei, Thai Li (Manop R.); 

 Minburi (Manop R.) ; Nakhon Prathom (Manop R.) ; Nonthaburi (Manop R.); 

 Pechaburi (Manop R.) ; Ratchaburi, Banpong (Manop R.) ; Samuthprakan 

 (ManopR.); Thonburi (ManopR.); Udonthani (ManopR.); Ampur Muang 

 (Scanlon). 



VIET NAM: Saigon (Spencer). 



WEST PAKISTAN: Lahore, (Barnett, Maldonado); Peshawar (Barnett); 

 Rawalpindi, Dhamyal (Barnett). 



Discussion. — We have given the description of festiva in consider- 

 able detail since it is the type-species of the genus Stilobezzia. Tokunaga's 

 (1940a, 1962) records of notata (de Meijere) from Japan, Okinawa, 

 and Taiwan apply at least in part to festiva as supported by our ex- 

 amination of material from these countries, though we have also seen 

 notata material from Japan. S. festiva appears to be more widely dis- 

 tributed than notata, especially in the Indo-Chinese faunal subregion; 

 notata is a more typical Malaysian element. 



