ipes . 



16 





13 





15 



. salatigae (p. 



27) 



T 4 



nigripalpis (p. 



x 4 



28) 



guttiventris (p. 



30) 



. nigriceps (p. 



31) 



rectinervis (p. 



33) 



nigroscutellata (p. 



34) 



albiceps (p. 



36) 



18 T. OKADA 



- Thoracic pleura dark brownish black or with dark longitudinal stripes 



12 Palpus black or dark brown ...... 



- Palpus yellow or orange-yellow or at least apically yellow . 



13 Scutellum laterally black, apically pale yellow . 



- Scutellum yellowish grey, basally somewhat fuscous . 



14 Palpus slender, with long setae ..... 



- Palpus large, without setae ...... 



15 Palpus apically black. Abdominal tergites banded, not spotted 



- Palpus pale yellowish white. Abdominal tergites spotted 



16 Palpus pale brown. Abdominal tergites mostly black, iT yellow 



- Palpus pale yellow. Abdominal tergites spotted 



Leucophenga abbreviata (de Meijere) 



(Text-figs. 29-34) 



Drosophila abbreviata de Meijere, 1911 : 400 (Java). 



Drosomyiella abbreviata (de Meijere) Hendel, 1914 : 114 (Java, Formosa). 



Leucophenga abbreviata (de Meijere) Duda, 1924a : 185 (Java). 



o\ $. Body about 2-2-3-0 mm. Head as broad as thorax. Eyes dark red, bare ; ocelli 

 bright red. Antennae with second segment yellowish brown ; third greyish brown, oblong, 

 apically rounded. Arista with about seven dorsal and three ventral branches and a small 

 terminal fork. Palpus yellowish orange, slender, with only one prominent apical seta, ventrally 

 with a long fine hair. Ocellar triangle black, pollinose. Periorbit greyish brown, short, medially 

 constricted. Front somewhat glossy dirty yellow, darker in caudal aspect, parallel-sided, 

 anterior width three-fourths as broad as length down middle, posteriorly two-fifths as broad as 

 head width. Clypeus pale yellowish orange, somewhat protruded. Face yellowish grey, 

 ventral margin somewhat convex. Postverticals small. Cheeks narrow, about one-thirteenth 

 as broad as the greatest diameter of eye. Occiput dark brown, pale above. Posterior reclinate 

 orbital slightly longer than others ; anterior reclinate thrice as distant from posterior reclinate 

 as from proclinate. Second oral fine, half as long as vibrissa, succeeding orals shorter. 



Mesonotum yellowish brown, matt without prominent patches. Scutellum yellowish brown, 

 grey pollinose, tip whitish. Thoracic pleura pale yellowish white, unicolorous. Humerals two, 

 strong, upper the longer. Prescutellar longer than anterior dorsocentral, almost equally distant 

 from each other and from dorsocentral. Acrostichal hairs in about ten irregular rows. Anterior 

 dorsocentrals about one-third as long as posteriors ; distance between anterior and posterior 

 dorsocentrals about one-fourth distance between anterior pair. Anterior scutellars divergent, 

 long, one and a half times as long as posteriors, which are nearer to each other than to anteriors. 

 Sterno-index about 0-5. Legs yellowish white ; last tarsal segment orange ; front metatarsi 

 subequal to the remaining segments together, mid metatarsi twice next two segments to- 

 gether, and hind metatarsi subequal to next three segments together. Preapicals on mid 

 and hind legs ; apicals on mid and hind legs. Knees somewhat fuscous. Wings hyaline, 

 somewhat fuscous ; veins yellowish brown, crossveins not clouded. i? 2 +3 slightly curved 

 to costa at tip ; i? 4 + 5 slightly convex anteriorly ; M apically abbreviated. C-index about 

 2 -3 ; 4V-index about 2 -o ; 4C-index about 1 -3 ; 5x-index about 1 -o ; Ac-index about 

 1-7. Ci-bristles two, C3-fringe on basal two-thirds. Halteres yellow, apically black. 

 Abdominal tergites yellowish or reddish brown ; 2T medially and laterally with black spots ; 

 3-5T with caudal black bands projected forward at middle ; 6T mostly black, often with an 

 obscure caudal band. 



Periphallic organs brownish black. Genital arch narrow above, truncate below, without 

 microtrichia, posterior margin with several long setae ; toe somewhat projected posteriorly ; 

 heel low, rectangular. Anal plate vertically elongate, fusiform, setigerous. Clasper nearly 

 quadrate, pubescent, and setigerous. Phallic organs : Aedeagus black, basally pale, elongate, 

 bifurcated on distal half, basally with a distally broadening apically pointed pale yellowish 



