REVISION OF SPECIES OF STILOBEZZIA KIEFFER 109 



Subapical dark spot in cell R 5 distinctly narrowed in middle; palpal segment V 

 distinctly pale at tip 5 



3. All wing spots extensive and very dark; male aedeagal sclerities strongly 



arched and moderately slender, mesal point short and not incurved (20 

 males, 7 females from Thailand — Loei, Khon Kaen, Nong Khai, Thonburi 



and Udonthani Provinces) (fig. 83a-d) Form 5 



Not as above 4 



4. Vein Cu 2 nearly obliterated near fMCu; palpal segment V extensively pale on 



distal half; male aedeagal sclerite strongly arched but slender, mesal point 

 short and not incurved (2 males from Thailand — Nong Khai Prov.) (fig. 



82c-/) Form 3 



Vein Cu 2 distinct along fMCu ; palpal segment V darker than above ; male aedea- 

 gal sclerite short and broad, slightly arched, mesal point with short neck and 

 distinctly in-turned tip (9 males, 5 females from Thailand — Loei, Nong 

 Khai, and Udonthani Provinces) (fig. 83z-Z) Form 7 



5. Vein Cu 2 distinct along fMCu, darkened; IRC poorly formed and cell space, if 



any, dark; palpal segment V with only extreme tip pale, sharply so; male 

 dististyle (fig. 82i) slender, male aedeagal sclerite slender and nearly straight, 

 mesal neck short, the distal point not incurved (18 males from Thailand — 

 Loei, Bangkok, Ratchaburi, Khon Kaen, and Thonburi Provinces; 2 males 



from Ceylon — Colombo) (fig. 82g-k) Form 4 



Vein Cu 2 indistinct; IRC often well formed with clear cell space; palpal seg- 

 ment V pale on distal third ; male aedeagal sclerite with long mesal neck . 6 



6. Vein Mi strongly arched caudad between the 2 distal dark spots; IRC well 



formed, but the dark spot less conspicuous; male aedeagal sclerities forming 

 a low arch, oriented nearly transversely, midportions broad (type series of 

 punctivenosa s. str. from Thailand — Udonthani Province) (fig. 81). Form 1 

 Vein Mi almost straight between the 2 distal dark spots; IRC often indistinct, 

 but the dark spot more conspicuous; male aedeagal sclerites forming a high 

 arched, oriented very obliquely, midportions less strongly swollen (9 males, 12 

 females from Thailand — Bangkok, Cholburi, Loei, and Thonburi Provinces; 

 3 males from Ceylon — Colombo) (fig. 83e-h) Form 6 



In addition we have females only from the following additional 

 localities: Form 1, INDIA, Calcutta, 2 females. Form 4, MALAYA, 

 Selangor, Kuala Lumpur, 11 famales. Form 6, MALAYA, Singapore 

 and Kuala Lumpur, 7 females. Form 1 or 6, PHILIPPINES, Mind- 

 anao, Pikit, Cotabato Prov., 1 female; THAILAND, Chiang Mai 

 Prov., 1 female. 



In alcohol we have 14 males and 59 females, which we have not 

 attempted to sort into forms. These, all taken in light traps, include: 



CEYLON: Colombo, Kalutaluwewa, Feb. 1958, Med. Res. Inst., 

 2 males, 13 females. 



MALAYA: Selangor, Kuala Lumpur, July 1958 to Jan. 1959, R. 

 Traub, 20 females. 



THAILAND: Ayudhaya, Jan. 1959, Manop. R, 1 female; Bangkok, 

 Pratoomvan, May 1959, Manop, R., 2 males, 8 females; Chiang Mai, 

 Apr.-May 1959, V. Notananda, 1 female; Khon Kaen, Meung Dist., 

 May 1959, Manop R., 2 males, 4 females; Nakhon Prathom, Dec. 

 1958, Manop R., 1 female; Nakhon Ratchasima, Meung Dist., 



288-859 0-68— 8 



