64 U.S. NATIONAL MUSEUM BULLETIN 25 7 



Distribution: Java, East Borneo, Philippine Is. 

 Material examined: Luzon, Los Bailos (Baker), 1 9, genit. slide 

 5142 (USNM). 



Bactra (Chiloides) venosana (Zeller, 1847) 

 Figure 536 



Phoxopteris venosana Zeller, 1847, Isis, p. 738. 



Aphelia venosana. — Herrich-Schaffer, 1849, Systematische Bearbeitung . . ., 

 vol. 4, p. 244. 



Bactra venosana. — Rebel, 1901, in Staiidinger and Rebel, Cat. Lepidopteren 

 palaearktischen Faun. pt. 2, p. 113. — Kennel, 1910, in Spuler, Schmetterlinge 

 Europas, vol. 2, p. 273; 1910, Palaearktischen Tortriciden, p. 472, pi. 18, 

 fig. 73. 



Bactra (Chiloides) venosana. — Diakonoff, 1956, Zool, Verb. 29, p. 33, figs. 31-33; 

 1959, Bijdr. Dierk., fasc. 29, p. 184; 1963, Ann. Naturhist. Mus. Wien, 

 vol. 66, p. 474; 1964, Zool. Verb., no. 70, p. 33. 



Bactra truculenta Meyrick, 1909, Journ. Bombay Nat. Hist. Soc. vol. 19, p. 586; 

 1922, Exotic Microlepidoptera, vol. 2, p. 521; 1934, in Caradja, Iris, vol. 48, 

 p. 33; 1935, in Caradja and Meyrick, Materialien Microlepidopteren-Fauna, 

 p. 57. — Fletcher and Gosh, 1920, Rep. Proc. 3rd Ent. Meeting Pusa, 

 p. 363, 367, 394.— Fletcher, 1921, Mem. Dept. Agric. India, Ent. ser., 

 vol. 6, p. 53. — Swezey, 1927, Proc. Hawaiian Ent. Soc, vol. 6, p. 349. — 

 DiakonoflF, 1950, Bull. British Mus. Nat. Hist., Ent. ser., vol. 1, p. 289, pi. 5, 

 fig. 16, pi. 7, fig. 30; 1956, Zool. Verb., no. 29, p. 27 figs. 28-30, p. 33, figs. 

 31-33; 1959, Bijdr. Dierk., fasc. 29, p. 184, pi. 1, fig. 4.— Clarke, 1955, 

 Catalogue . . . Microlepidoptera . . . Meyrick, vol. 1, p. 319; 1958, op. cit., 

 vol. 3, p. 315, pi. 156, figs. 4-4a.— Bradley, 1961, Bull. British Mus., Ent., 

 vol. 10, p. 122. 



Bactra (Chiloides) truculenta. — Diakonoff, 1956, Zool. Verb., no. 29, p. 27, figs. 

 28-30; 1959, Bijdr. Dierk., fasc. 29, p. 184. 



Bactra scythropa Meyrick, 1911, Proc. Linn. Soc. New South Wales, vol. 36, 

 p. 284. 



Bactra geraropa Meyrick, 1931» Exotic Microlepidoptera, vol. 4, p. 147. — Clarke, 

 1955, Catalogue . . . Microlepidoptera . . . Meyrick, vol. 1, p. 146; 1958, op. 

 cit., vol. 3, p. 308, pi. 153, figs. 4-4 b. 



Distribution: India, Ceylon, Andaman Is., South China, Formosa, 

 Timor, Hawaii, Australia, Fiji. Known to me also from Borneo, 

 Kissar Is., Philippine Is., Caroline Is., North Africa, Asia Minor, 

 South Europe. 



Food plants: Cyperus rotundus. 



Material examined: Luzon, Mt. Makihng, 1 9, genit. slide 5061 

 (USNM). 



After a study of extensive material from all over the region indi- 

 cated above, I am finally satisfied that Bactra venosana and Bactra 

 truculenta are the same species. Previously it seemed that the first 

 species was from the temperate and subtropical regions, while the 

 second was tropical. The surmised differences in anatomy, however, 

 proved to be only illusory. 



