COLLECTED AT SINGAPORE AND MALACCA. 
23 
hardly undulating, parted by a little less than its length from the border, 
and by much more than half its length from the flexure of the prsebrachial 
vein. Alnlm white. Length of the body 4 lines ; of the wings 8 lines. 
Mount Ophir. 
Subfam. Muscides. 
Gen. Idia, Meigen. 
76. Idia tenebkosa, n, s., foem. Obseurfe virulis punctata, capite pedibus 
halteribusque nigris, antennis piceis, alis fusco-cinereis apud costam nigris. 
Female. Dull green. Head slightly tuberculated above, black and shining 
in front. Frontalia dull black, hardly decreasing in breadth to the base of 
the antenna) which are piceous. Thorax very minutely punctured, with a 
slight hoary tinge which is interrupted by three slender indistinct black 
stripes. Abdomen shining, thickly punctured. Legs black. Wings brownish 
grey, black along the costa. Alulae grey, with black borders. Halteres black. 
Length of the body 4 J lines ; of the wings 7 lines. 
Mount Ophir. Inhabits also South Africa. 
77. Idia bicoloii, n. s., foem. Yiridis, capite albido, facie nigra, frontalibus 
obscure nigris, antennis fulvis, thorace nigro-quadrivittato, abdomine ffineo- 
raargiuato, vittA dorsali nigra, pedibus nigris, alis cinereis costA apieeque 
nigricantibus, halteribus albidis. 
Female. Green. Head whitish and shining above, black and shining in front. 
Frontalia dull black, linear, furcate hindward. Antennae tawny. Thorax 
with a slight hoary bloom and with four slender black stripes. Abdomen 
eeneous at the tip and along each side, and with a slight black dorsal stripe. 
Legs black ; coxse and femora green. Wings grey, blackish along the costa 
and at the tips. Alula) dingy whitish. Halteres whitish. Length of the 
body 8 lines ; of the wings 5 lines. 
Malacca. 
Gen. Musca, Linn. 
78. Musca flaviceps, Macq. I>ipt. Fxot. ii. 2. 145. 23. pi. 18. f. 1. (Lucilia.) 
(Genus Chrysomyia, Desv.) 
Singapore. Inhabits also Hindostan. 
79. Musca chbtsoides, n. s. (genus Chrysomyia, JDesv.), mas. Scriceo-viri- 
dis, capite testaceo, palpis antennisque fulvis, abdominis vitta dorsali fasciis- 
que nigris, alis subcinereis apice obscurioribus. 
Male. Sericeous green, hardly shining. Head testaceous. Proboscis black. 
Palpi and antennae tawny. Abdomen with a black dorsal stripe, and with 
a black band on the hind border of each segment. Legs black ; coxae and 
femora green. Wings greyish, much darker towards the tips ; veins black, 
tawny along the costa ; prsebrachial vein forming a very obtuse and some- 
what rounded angle at its flexure, from whence it is slightly curved inward 
to its tip ; cliscal transverse vein deeply undulating, parted by much less 
than its length from the border, and by a little less than its length from the 
flexure of the prsebrachial vein. Ahdte dingy testaceous. Length of the 
body 5 lines ; of the wings 10 lines. 
Malacca and Mount Ophir. 
