86 Records of the Indian Museum. [VOL. VII, 1912. 
middle of the costal cell. Of the light veins, all of which attain 
the wing-margin, the Ist takes a single, distinct curve upward, the 
2nd and 3rd are moderately bisinuate (sometimes much less so), 
the 4th is nearly straight. Halteres pale yellow. 
Described from a good series (mostly 2 ¢), bred by me in 
Calcutta from a dead lizard (Calotes versicolor, Daud.) which had 
remained for a day or twoin an empty pickle bottle. The first 
generation appeared early in August and the imagines, not being all 
removed for a few days, a second generation, bred from the first, 
appeared from August 23rd to 27th. The description also embodies 
the examination of a short series bred inthe Indian Museum from a 
water beetle (Cybister limbatus, F.) taken at Raniganj (Bengal), these 
specimens emerging 22 and 23-vii-o8. A few other specimens in 
the Museum collection, and in my own, from various parts of India, 
have also been examined, from Sylhet, 8-i-05; 23-11-05, 18-ili-05, 
[Major Hall]; Calcutta, 21—25-ii-07 ; and I have one ~ from Pera- 
deniya (1,500 ft.), Ceylon, taken November 1907. 
Notes.—This species is very variable in colour, ranging from 
bright ferruginous to grey. the proportion of black on the abdomen 
totally altering the general appearance of the insect. The species, 
however, once well understood, is tolerably easy to recognize, and 
is apparently of almost world-wide distribution throughout the 
tropical regions and probably some adjacent portions of the tem- 
perate zone also. 
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