rg^i-] N. ANNANDAI.E : Faiinci 0/ Barkiuia I. 319 



n'tictilti.'a, and a small colourless species is kept iti its nests in 

 rotten wood and deserted termite mounds b}- the ant Acropyga 

 acuHveniris , Roger. 



DiPTEKA. — -The two-winged flies are poorly represented and the 

 only large or conspicuous species that occur belong to the Bomby- 

 lidae (including the magnificent Exoprosopa. flammea), of which 

 several are common from April till June. They disappear for the 

 most part, however, with the onset of the rainy season. Many of 

 the common species of such families as the vSyrphidae are absent 

 or very scarce. The Trypaneids and other fiugivorous forms are 

 rare, while parasitic and semi-parasitic species are rarer than 

 might be expected. Mr. Brunetti identifies a fly that lives on 

 Cervits axis with the European Lipopteiia cervi. A termitophilous 

 Phqrid of the genus Termitoxenia has been found in the fungus- 

 combs of Terines (Odoutolcrmes) obesus, Ramb. 



The Nemocera are in some cases very abundant in indivi- 

 duals, but most families are poor in species. The Chironomidae 

 seem to be less so than others and some minute forms are 

 sufficiently abundant to be troublesome, amon^j; others the blood- 

 sucking Culicoides peregrinus, Keiffer, which, however, is more 

 troublesome on account of its vast numbers than its bite. 

 At the end of the rainy season in disturbed weather it swarms 

 with other forms round lamps in the verandah of the bungalow 

 and especially on the ceiling above. Calyptopogon albitarsis, 

 Kieff. is the only larger species of the family identified. Some 

 of the smaller Chironomidae breed in damp rotten wood. A small 

 species of Phlebotomus (Psychodidae) also occurs, but is rather 

 scarce. Mosquitos are sometimes abundant, especially at the 

 end of the rainy season, but very few species were observed. 

 The conmionest is Anopheles rossii (or, or as it is now called 

 .1. siibpiclus, Grassi), which breeds in the lake. Tipulidae 

 are scarce and small. The largest and also the least scarce 

 is the widely distributed Conosia irrorata. Cecidomyid galls are 

 very abundant on certain trees, particularly on the leaves of 

 Salvadora persica and Pongamia glabra, both of which are found 

 almost exclusively on the shore of the island, and several species 

 of the flies come to light occasionally. 



Trichoptkra. — Are rare, but a few small species breed in the 

 pond. 



Lepidoptera. — The butterflies are discussed in this instal- 

 ment of the report. Some species are abundant, and practically 

 without exception the DiLirna belong to widespread and common 

 species. The moths have not been diligently collected. They 

 seem, however, to be better represented than many groups of 

 insects, perhaps because their caterpillars often feed on unpromis- 

 ing materials. Species of the largest size, such as those of Attacus, 

 do not occur, and the Saturniidae generally are poorlj' represented. 

 I do not remember to have seen any Sphingid except Cephanodes 

 hylas. The largest moth observed was probably Nyclipao niacrops, 

 which flies about rapidly in a circumscribed area at night in open 



