1915.] F. H. Gravety: Indian Insects, Myriapods, etc. 507 
Stridulating organs on the wings of certain Indian moths 
have been described by Hampson (Proc. Zool. Soc. London, 1892, 
pp. 188-193, 6 text-figs.). 
With regard to the supposed stridulating organ found in 
males of the genus Arcte (pl. xxiii, fig. 7) Mr. Henry has sent me 
the following note on an observation he made a few years ago in 
the Matale District of Ceylon. ‘‘I was walking through jungle at 
dusk and noticed two dark moths with light patches on the under- 
wings, which i am sure were Arcte caerulea, flitting up and down 
and round each other, and producing a curious clicking noise. 
Unfortunately at that time I was not specially interested in moths, 
so I neglected to preserve the specimens or to make a note of the 
occurrence. I was merely struck by the curious fact of moths 
producing asound. Itmay havebeen a pair of males fighting (and 
I incline to this opinion) or a male courting a female.’’ 
Alarming colour and attitude, and also mimicry in certain 
caterpillars, are described by Annandale (Proc. Zool. Soc. London, 
1900, pp. 855-857). 
DIPTERA. 
Psychodidae. 
Concerning Phiebotomus minutus see Howlett, Ind. J. Med. 
Res., 1, pp. 34-8, 1 fig. 
Cecidomyidae. 
Stebbing describes the life-history and habits of a Cecidomyid 
which produces false cones on Pinus longifolia (Indian Forester, 
XXXI, pp. 429-433, pl. xxxviii). 
Chironomidae. 
The habits in all stages of the Colombo Lake Fly—since des- 
cribed by Kieffer (Rec. Ind. Mus. VI, pp. 136-137) under the name 
Chironomus ceylanicus (see Green, Spolia Zeylanica, VII, p. 50)— 
are referred to by Green, Ind. Mus. Notes, V (3), pp. 191-193, and 
Chalmers, zbid., pp. 195-197. 
The larva of a Chironomid, since described by Kieffer as 
Chironomus fasciatipennts, is recorded by Annandale as feeding on 
—and in its very early stages sometimes feeding—AHyara orientalis 
(J.A.S.B. [n.s.j, II, pp. 112-116; see also Fauna of British India, 
Freshwater Sponges, Hydroids and Polyzoa, pp. 155-6). Other 
Chironomid larvae (Chivonomus and Tanypus spp.) are recorded 
by the same author as living in association with Spongilla cartert 
(J.A.S.B. [n.s.], II, pp. 190-4, figs. 2A-B). He also notices some 
Indian blood-sucking midges (Rec. Ind Mus., IX, pp. 246-7). 
the Indian species of Death’s Head Moth stridulate by rubbing the tip of the 
proboscis on the ridged lower surface of the same appendage. I have had no 
opportunity of investigating this on a living specimen, but found no difficulty in 
artificially producing sound in this way on a freshly killed specimen that I once 
received. 
