REVISION OF SPECIES OF STILOBEZZIA KIEFFER 67 



between 2RC and tip of vein M2, with a few more proximad along 

 tip of vein Mi and on each side. Halter slightly infuscated. 



Abdomen (fig. 65/) : Pale grayish, tip of abdomen beyond VII dark 

 brown, VII forming a distinctive subcorneal structure; setae weak, 



1 with 5-6 on each side; each tergum with transverse row of setae just 

 behind midlength and 1-2 on each side. Spermathecae (fig. 65#), 



2 heavily sclerotized functional and 1 minute rudimentary; the 2 

 ovoid without necks, unequal, measuring 0.067 mm by 0.042 mm and 

 0.053 mm by 0.035 mm. Genital sclerotization as in figure 65i, gonopore 

 flanked by a pair of small sclerotized teeth. 



Male. — Unknown. 



Distribution. — Malaya; Laos. 



Types. — Holotype female, Kahang Kluang, Johore, Malaya, 7-9 

 Jan. 1961, A. A. Hubert, light trap (USNM 69466). Paratypes, 35 

 females, all taken in light traps. LAOS: Vientiane, 3 June 1960, L. 

 and S. Quate, 6 females. MALAYA: Johore, same data as holotype, 

 7 females. Kelantan, Lambok, Sungei Betis, Ulu Kelantan, 9 Nov. 

 1961, R. H. Wharton, 2 females. Pahang, King George V. Nat. Park, 

 Tahan River, 4-6 Nov. 1959, H. E. McClure, 16 females. Selangor, 

 Kuala Lumpur, Aug. 1958, R. Traub; May 1959, H. E. McClure, 

 2 females. Trengganu, Dun Gun, Bukit Besi, 6 Aug. 1958, R. Traub, 

 2 females. 



Discussion. — The specimens from Laos differ from the Malayan 

 specimens in several respects, but in the absence of males, we prefer to 

 retain them provisionally in xanthogaster. The Laos specimens differ 

 in possession of a thicker distal portion of vein R 4+5 , with 2 setae in the 

 midportion of stem R and 1 seta on R 4+5 at midlength of 2RC (fig. 

 65h) ; the posterior cleft in sternum IX is more broadly and less 

 deeply cleft, and the internal lamellae are somewhat stouter (fig. 65j). 



Subgenus Stilobezzia Kieffer 



Stilobezzia Kieffer, 1911a, Rec. Indian Mus., vol. 6, p. 118; 1913, Rec. Indian 

 Mus., vol. 9, p. 184; 1917a, Ann. Mus. Nat. Hungarici, vol. 15, p. 307; 

 1919, Bull. Soc. Ent. France, p. 192.— Goetghebuer, 1920, Mem. Mus. 

 Roy. Hist. Nat. Belgique, vol. 8, p. 59. — Carter, Ingram, and Macfie, 1921, 

 Ann. Trop. Med. Parasit,, vol. 15, p. 324.— Edwards, 1926, Trans. Ent. 

 Soc. London, vol. 74, p. 411; 1929, Notulae Ent., vol. 9, p. 9. — Johannsen, 

 1931, Arch. Hydrobiol. Suppl., vol. 9, p. 430.— Ingram and Macfie, 1931a, 

 Dipt. Patagonia and S. Chile, pt, 2, fasc. 4, p. 191.— de Meillon, 1938, Proc. 

 Roy. Ent. Soc. London (B), vol. 7, p. 266.— Tokunaga, 1940b, Tenthredo, 

 vol. 3, p. 154. — Johannsen, 1943, Ann. Ent. Soc. Amer., vol. 36, p. 781. — 

 Lane, 1947, Rev. Ent., vol. 18, p. 197.— Lee, 1948, Proc. Linn. Soc. N.S. 

 Wales, vol. 72, p. 345.— Wirth, 1953, Proc. U.S.Nat. Mus., vol. 103, p. 57. 

 [Type-species, Stilobezzia f estiva Kieffer, original designation.] 



Hartomyia Malloch, 1915, Bull. Illinois St. Lab. Nat. Hist,, vol. 10, p. 339. 

 [Type-species, Ceratopogon pictus Coquillett, original designation.] 



