58 T. OKADA 



Periphallic organs yellowish grey. Genital arch pubescent, ventrally narrowing, pointed 

 caudoventrally ; caudal margin with about twelve setae. Clasper quadrate, large, pubescent, 

 with a row of about ten large pointed black teeth in a straight row on nearly entire distal margin ; 

 inner surface with about eight short setae. Anal plate, oval, separated from genital arch, 

 setigerous and pubescent, ventral tip with a tuft of short setae. Phallic organs : Aedeagus pale 

 brown, rod-shaped, slightly curved ventrally, apically triangularly pointed. Basal apodeme 

 two-thirds length of aedeagus, straight. PI = 1-3. Anterior paramere elongate, orange- 

 yellow, basally attached to aedeagus, apically partially fused to hypandrium, rounded, and with 

 about two long sensilla. Hypandrial plate conical, with a stout submedian spine outside 

 sensilla. Ventral fragma narrow, triangular, lateral arms apically rounded, p.f. = aBCdEfg 

 HIK1MN. Decasternum triangular, orange-brown, lateral sides concave. Egg-guide lobe 

 yellowish brown, darker below, elongate elliptical, rounded to tip, basally narrowing, with about 

 thirteen dark brown marginal and four discal teeth, distal marginal teeth being larger. Basal 

 isthmus dark, long, moderately swollen, medially about half as long as the lobe. 



Holotype <$. East Nepal : Taplejung District, Sangu, mixed vegetation by 

 stream in gully, c. 6,200', xi. 1961-1.1962 (R.L.C.), BMNH. 



Allotype $. Same data as holotype (R.L.C.), BMNH. 



Paratypes : 1 <$, same data as holotype ; 1 $, same locality as holotype, ix-x. 

 196 1 ; 1 $, between Sangu and Tamrang, mixed plants by damp cliff in deep river 

 gorge, c. 5,200', i-ii.1962 ; 1 $, ibid., mixed shrubs in deep gorge, c. 6,200', x-xi.1961 ; 

 1 $, above Sangu, evergreen scrub, c. 6,500', 5-13.X.1961 ; 1 $, ibid., mixed vegeta- 

 tion in dried-up ravine, c. 6,800', 17.il. 1962 ; 1^,1$, Sangu, mixed vegetation in 

 deep gully, c. 6,200', 2.1-13.11.1962 (R.L.C.). 



Allied to C. quadrilineata (de Meijere, 1911) (Java, etc.), but differs in having 

 mesonotal dark stripes obscurely demarcated (distinct in quadrilineata), six rows of 

 acrostichal hairs (four in q.), two long sternopleurals (one long and two short in q.), 

 and no row of spinules on fore femur. 



SCAPTOMYZA Hardy 



Scaptomyza Hardy, 1849 : 361. 



Type-species : Drosophila graminum Fallen, 1823 : 8 (Europe). 



Key to Species 



1 Only one prominent, median, humeral. Acrostichal hairs in two rows, o* genitalia 



with paralobes. $ egg-guide lobe weakly sclerotized, with a few subapical long 

 setae ........ S. (Parascaptomyza) pallida (p. 59) 



- Two or three prominent humerals. q* genitalia without paralobes. Egg-guide lobe 



well sclerotized, with numerous short stout bristles . S. (Scaptomyza) 2 



2 Two rows of acrostichal hairs. Legs mostly yellowish grey. Genital arch narrowly 



pointed below ........ parasplendens (p. 59) 



- Four rows of acrostichal hairs. Genital arch blunt below ..... 3 



3 Arista without branches below terminal fork. Clasper with a row of large stout 



pointed teeth occupying entire outer margin. Legs yellowish grey, ultimate two 

 tarsal segments dark. Ocellar triangle black, pollinose . . melanissima (p. 62) 



- Arista with one branch below fork. Clasper with a row of marginal teeth on basal 



two-thirds on outer margin, with numerous discal teeth on lower one-third. Legs 

 mostly black, fore coxa yellow. Ocellar triangle matt velvety-black . silvata (p. 63) 



