3° 



T. OKADA 



between anterior and posterior dorsocentrals about two-sevenths distance between anterior pair. 

 Anterior scutellars divergent, slightly longer than posteriors, which are a little nearer to each 

 other than to anteriors. Sterno-index about 0-7. Legs yellowish white ; mid and hind knees 

 somewhat fuscous. All metatarsi longer than the other segments together. Preapicals on all 

 legs ; apicals prominent on mid leg. Wings hyaline, slightly pointed at tip ; crossveins clear. 

 R 2 + 3 nearly straight ; i? 4 + 5 and M somewhat convergent distally ; Cu black, other veins pale. 

 C-index about 20 ; 4.V-index about 2-2 ; 4.C-index about 14 ; 5x-index about i-i ; Ac-index 

 about 2-6. C 1 -bristles two ; C3-fringe on basal about three-fifths. Halteres yellowish orange, 

 stalk paler. Abdominal tergites mostly black ; iT and 2T except posterior margin yellowish 

 brown. 



Periphallic organs : Genital arch brownish black, broad, pubescent ; anterior fragma extremely 

 protruded forward ; heel lower than toe, with a few long hairs. Anal plate oblong, brown, 

 hairy and pubescent. Clasper brownish black, roughly pentagonal, lower tip somewhat pointed, 

 without teeth, pubescent on surface. Phallic organs : Aedeagus black, slender, basal half 

 bifurcated ; ventral recurved process dark orange, elongate, distally much swollen, apically 

 curved ventrally and pointed, nearly as long as aedeagus. Anterior paramere pale, broad, 

 subapically with a few sensilla. Posterior paramere brown. Ventral fragma proximally 

 pointed, distally narrowing. PI = 00. p.f. = ABCDefgHikLMN. 



Arun Valley, east shore of River Arun, Tumlingtar, evergreen shrubs bordering 

 dry stream-beds, c. 1,800', 14-23. xii.1961, 3 <$ (R.L.C.). 



Distribution : Nepal (new locality), Formosa. 



Differs from the original form (Formosa) in having 3-5T largely black, without 

 diffuse black lateral spots. 



Leucophenga guttiventris (de Meijere) 

 (Text-figs. 67-70) 



Drosophila guttiventris de Meijere, 1911 : 414 (Java). 



Leucophenga guttiventris (de Meijere) Sturtevant, 1921 : 131 (Java) ; Duda, 1924a : 187, 188 ; 



1924b : 239 (Java, Formosa) ; Duda, 1923 : 28 (Java, Formosa) ; Bezzi, 1928 : 155 (Fiji) ; 



Duda, 1939 : 32 ; 51 (Africa) ; Okada, 1956 : 27 (Japan). 

 Leucophenga guttiventris var. curvipila Duda, 1939 : 32 (Africa). 

 Leucophenga guttiventris var. fuscipennis Duda, 1939 : 32 (Formosa). 

 Leucophenga fuscipennis Duda, 1923 : 28 (Formosa). 

 Drosophila maculiventris van der Wulp ; de Meijere, 1908 : 155 (Java). 



$. Body about 2-5 mm. Head as broad as thorax. Eyes pale reddish brown, large, bare. 

 Antennae with second segment pale yellowish brown ; third greyish white, elongate. Arista 

 with about six dorsal and four ventral branches and a small terminal fork. Palpus large, dark 

 brownish black, basally paler, curved upward, subapically with a fine short seta. Ocellar tri- 

 angle black, pollinose. Periorbit greyish white, short, flat, not well demarcated from front. 

 Front white, somewhat glossy, posteriorly slightly yellowish brown, anteriorly about five- 

 sevenths as broad as length down middle, posteriorly about two-fifths as broad as head width. 

 Clypeus pale brown, narrow. Face white, flat. Carina undeveloped. Cheeks white, narrow, 

 about one-twentieth as broad as the greatest diameter of eye. Occiput black, upper margin 

 yellow. Anterior reclinate orbital slightly shorter than other orbitals, outside proclinate, thrice 

 as distant from posterior reclinate as from proclinate. Only one prominent rather short oral. 



Mesonotum orange-yellow, caudomedially somewhat brownish, posteriorly slightly silver 

 pollinose ; humeral callus pale. Scutellum orange-yellow, slightly glossy, laterally somewhat 

 fuscous, pale at tip. Thoracic pleura pale yellowish white, without dark markings. Humerals 

 two. Prescutellar as long as anterior dorsocentral. Acrostichal hairs in about eight rows. 

 Anterior dorsocentrals about five-eighths as long as posteriors ; distance between anterior and 



