166 Mr. J. R. Malloch on Exotic Muscaridee. 
subtriangular spots on each segment except fourth. Legs 
black. Wings hyaline. Calyptree white. Halteres yellow. 
Eyes bare; frons about one-fifth of the head-width ; 
orbits linear, bristly on anterior half and with a forwardly 
directed setula in line with anterior ocellus ; mouth-margin 
slightly produced ; arista short-haired. Thorax with pre- 
sutural acrostichal hairs 4-rowed ; postsutural dorso-centrals 3. 
Abdomen slightly depressed, almost parallel-sided, fourth 
tergite longer than the third; processes of fifth tergite very 
large and broad, nearly bare, compressed, and projecting 
keel-like straight downward, the apical width of each 
process about equal to its length; hypopygium rather large, 
forceps concealed by the processes of fifth sternite. Fore 
and mid tibis each with a median posterior bristle; 
mid femur with short fine setule on basal half of antero- 
ventral surface and longer, stout, rather irregular bristles 
on entire length of postero-ventral ; hind femur with stout, 
rather irregular bristles on antero-ventral surface, and on 
apical three-fourths of postero-ventral; hind tibia slightly 
produced at apex ventrally, with one antero-ventral and one 
antero-dorsal bristle, the apical bristle slightly curved. 
Fourth vein much curved forward at apex. 
Length 5 mm. 
Type, north of Mt. Kenia, 8300 feet, 18. ii. 1911 (7. J. 
Anderson). One male. 
Closely allied to aculeipes, Stein, differing in the bristling 
of hind femora and mid and fore tibie. 
Limnophora macfiei, sp. n. 
Male.—Black, opaque, densely whitish-grey pruinescent. 
Head black, interfrontalia velvety black ; orbits, face, and 
cheeks densely whitish pruinescent. Thorax with two rudi- 
mentary blackish spots on anterior margin, a deep black 
fascia behind suture, and the scutellum except apex black. 
Abdomen with base of first tergite and two elongate, widely 
separated spots on second and on third tergites deep black. 
Legs black. Wings hyaline. Halteres and calyptre 
whitish. 
Eyes bare; narrowest part of frons equal to width across 
posterior ocelli ; interfrontalia distinct on its entire length ; 
orbits widened anteriorly, each with 4 bristles, the upper one 
just above middle, and a setula opposite anterior ocellus ; 
longest hairs on arista much longer than width of third 
antennal segment; vibrissal angle but little produced. 
Presutural acrostichal setulz in six series, sparsely covering 
