430 Mr. J. R: Malloch on Exotic Musecaride. 
large subtriangular patch of bluish-grey pruinescence on 
each side at suture which connects with the pruimescence on 
pleura. Abdomen pale grey pruinescent, basal tergite black, 
second and third each with a pair of very large black spots, 
which are narrowly separated in centre and cover disc except 
a triangular area on each side anteriorly, fourth tergite with 
two small black spots in centre anteriorly. Legs black. 
Wings clear. Calyptre fuscous. Knobs of halteres pale 
yellow. 
Hyes bare, separated by less than width of anterior ocellus ; 
ocellar bristles parallel; parafacials invisible from side; 
cheeks linear; vibrisse short and stout, the adjoining 
setulee very short and stubby; third antennal segment about 
twice as long as second; arista almost bare. Thorax with 
one pair of strong presutural acrostichals and a few weak 
hairs ;_ three postsutural dorso-centrals ;  sternopleurals 
1:2. Abdomen ovate ; fifth sternite small, deeply incised in 
centre. Mid-tibia with one posterior bristle; hind femur 
with two preapical antero-ventral bristles; hind tibia with 
one antero-ventral and one antero-dorsal bristle. 
Female.—Differs from the male in having the dorsum of 
thorax pruinescent posteriorly, the abdominal spots larger, 
and the calyptre white. Interfrontalia opaque black, orbits, 
face, and cheeks whitish pruinescent. Thorax with one or 
two pairs of weak presutural acrostichals besides the one 
strong pair. In other respects as the male. 
Length 2-3 mm. 
Type, male, allotype, and three female paratypes, Stannary 
Hills, North Queensland, about 3000 feet, no date (Dr. 7. 
Bancroft). 
Named in honour of the collector. 
Soutu-AMERICAN SPECIES. 
Subfamily Awrvouyiziwa. 
Pegomyia peciloptera, sp. n. 
Male.— Black, densely grey pruinescent. Head black, 
orbits, face, aud cheeks white pruinescent, almost silvery ; 
antenne and palpi black. ‘Thoracic dorsum with three 
broad, indefinitely margined brown vitte. Abdomen with 
a moderately broad black dorso-central vitta; the larger 
bristles with a blackish dot at base of each. Legs yellowish 
brown, femora darker, tarsi black. Wings clear, with a 
black spot on each of the cross-veins, another over bases of 
second and third veins and of discal cell, one at apex of first 
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