26 
MB. WALKEB’S CATALOGUE OF DIPTEBOVS INSECTS 
curved inward to ita tip ; discal transverse vein moderately undulating, 
parted by little more than half its length from the border and by rather 
less than its length from the flexure of the prrebrachial. Alulre grey. 
Length of the body 3| lines ; of the wings 7 lines. 
Singapore. 
87. Musca diffidens, n, s. (genus Pyrellia, Desv.), foenn. Cyaneo-viridis, 
eapite albido, palpis antennis pedibusque nigris, alis vix cinerascentibus. 
Female, Bright bluish-green. Head whitish. Proboscis, palpi, antennre 
and legs black. Wings hardly greyish j veins black ; prrebrachial vein 
gently curved at its flexure, from whence it is almost straight to its tip ; 
discal transverse vein almost straight, parted by much less than its length 
from the border, and by much more than its length from the curve of the 
prsebraehial vein. Alulae whitish. Length of the body 3 lines ; of the 
wings 6 lines. 
Singapore. 
88. Musca CONFIXa, n. s. (genus Pyrellia, Desv.), foam. Lretb viridis cyaneo 
purpureoque varia, eapite nigro, antice albido, palpis testaceis, antennis 
nigris basi rufescentibus, abdominis apiee subreneo, pedibus nigris, alis 
cinereis. 
Female. Bright green, tinged with blue and purple along each side. Head 
black above, whitish in front. Proboscis black. Palpi testaceous. An* 
tenure black } first and second joints reddish. Abdomen slightly reneous 
at the tip. Legs black ; femora green. Wings grey ; veins black ; prre- 
brachial vein gently curved at its flexure, between which and its tip it is 
slightly curved inward ; discal transverse vein moderately undulating, 
pai*ted by much less than its length from the border, and by a little less 
than its length from tlie flexure of the prsebraehial vein. Alulre dark grey. 
Length of the body 3£ lines ; of the wings 7 lines. 
Mount Ophir, at the height of 4000 feet. 
89. Musca refixa, n. s. (genus Pyrellia, Desv.) , foem. Purpurea, latcribus 
Bubthsque cyanea aut cyaneo-viridis, eapite antico, palpis pedibusque nigris, 
antennarum artieulo tertio piceo, alis subcinereis. 
Female. Purple shining, blue on each side and beneath. Head in front, pro- 
boscis, palpi and legs black. Third joint of the antennre piceous. Wings 
slightly greyish ; veins black ; prrebrachial vein forming a gentle curve at its 
flexure, which is very near the border, indistinctly curved outward from 
thence to its tip ; discal transverse vein almost straight, parted by little 
more than lialf its length from the border, and by about its length from the 
flexure of the prrebracliial vein. Alulre grey. Length of the body 2 J-2| 
lines ; of the wings 5-5£ lines. 
Var. (3. Bluish-green. Scutellum purplish-blue. Discal transverse vein very 
indistinctly curved inward. 
Singapore. 
90. Musca perfixa, n. s. (genus Pyrellia, Desv.), feem. Purpurea, capita 
palpis antennis pedibusque nigris, alis limpidis. 
Female. Very nearly allied to M. rejixa. Purple, shining. Head and 
appendages and legs black. Wings limpid ; veins black ; prrebrachial vein 
