168 MU. WALKER ON DIPTERA COLLECTED AT MAKESSAR. 
Gen. Opomyza, Fallen. 
224. Opomyza nigrifinis, n. s. Fcem. Cinerea, capite antennisque 
pallide rufis, arista plumosa, thorace bilineato, peetore halteribusque 
albis, abdomine fulvo lanceolato apicem versus nigro, pedibus fulvis, 
alis nigris albo guttatis. 
Female. Cinereous ; head pale red, white beneath ; antennas pale red, 
very short, 3rd joint nearly round, arista plumose ; thorax with two 
indistinct darker lines ; pectus and halteres white ; abdomen lanceo- 
late, tawny, shining, black towards the tip; legs tawny ; wings black, 
rather narrow', with about ten white dots, of which two are larger than 
the others, and form a broken and almost interrupted band near the 
base ; veins black ; discal transverse vein straight, upright, parted by 
about half its length from the border ; no praebracliial transverse vein. 
Length of the body li-11 hues ; of the wings 2£-3 lines. 
Gen. Drosophila, Fallen. 
225. Drosophila solennis, n. s. Mas. Testacea, facie cariuata, 
thorace vittis quatuor fulvis, abdomine fasciis abbreviate nigricantibus, 
alis eineveis. 
Male. Testaceous; face keeled; antennae wanting; thorax with four 
tawny stripes; abdomen elliptical, a little longer than the thorax, 
w ith blackish abbreviated bands ; wings grey ; veins black ; discal 
transverse vein straight, upright, parted by hardly less than its length 
from the border, and by about thrice its length from the praebracliial 
transverse. Length of the body line; of the wings 3 hues. 
226. Drosophila rudis, n. s. Mas. Fulva, facie albida, abdomine 
nigro nitente basi fulvo, pedibus halteribusque testaceis, alis cinereis 
apud castain obscurioribus maculis quatuor nigricantibus. 
Male. Tawny, testaceous beneath ; face whitish ; antennae wanting ; 
abdomen elongate -oval, black, shining, taw'ny at the base, not longer 
than tlie thorax ; legs and halteres testaceous ; w'ings grey, darker 
along the costa, with four blackish spots, first spot subcostal, larger 
than the second which is discal, third apical, band between the second 
and third spots irregular, attenuated liindward ; veins black ; discal 
transverse vein straight, upright, parted by nearly its length from the 
border, and by nearly twice its length from the praebracliial transverse. 
Length of the body 2 lines ; of the wings 3^ lines. 
227- Drosophila illata, n. s. Fcem. Fulva, segmentorum abdomi- 
nalium margiuibus pedibusqne testaceis, alis cinereis. 
Female. Tawny ; antennae very short, 3rd joint conical, arista thinly 
plumose ; abdomen oval, not longer than the thorax, hind borders of 
the segments and legs testaceous ; wings grey ; veins black, tawny at 
the base ; discal transverse vein straight, upright, parted by about its 
length from the border, and by nearly four times its length from the 
pracbrachial transverse. Length of the body 14 line ; of the wings 2 4 
lines. 
