330 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XV, 



Of the species new to India 



was first discovered in April in a jungle spring to- 



A. leuco- g e ther with A. culikiformis, sp. n. ? and A. fluviatilis, 



P J ' > * James. Only two larvsB were obtained then, and it 



v a r. elegans, J ' 



Theobald was no ^ f° ar id again until the cessation of the rains 



when it became very abundant. Whilst water was 

 plentiful it was found in the open, but as a rule it was found in jungle 

 springs and was particularly partial to waters containing decaying 

 leaves. (For sketches vide Plate, fig. la to fig. le.) 



The larva is, as a rule, of a rich brown colour, with the palmate hairs 

 very pronounced, and commonly visible to the naked 

 eye. It is not uncommonly seen hanging perpendi- 

 cularly to the surface of the water, in the attitude ascribed to 

 A. Turkadi. It thrives best in water containing plenty of mould. It 

 closely resembles that of A . Rossi in character. 



Frontal bristles, median : very long, far apart, simple. 



Frontal bristles, angular : short, simple. 



Palmate hairs : on the 3rd to 7th abdominal segments, that on the 

 7th segment not so well developed as the rest ; an extremely ill- 

 developed palmate can also be made out on the 2nd segment, but is 

 not constant. The individual hairs are broad, and narrow rather 

 suddenly at the extremity where there is a spine of moderate length. 



The imago shows very striking differences from A. leucophyrus, 

 Donitz, as described in Giles ; in fact, beyond simi- 

 larity in wing markings and position of transverse 

 veins there is no resemblance. A description is therefore given in 

 detail. The characteristics are : (1) a large ferruginous anal tuft; 

 (2) palpi with four narrow white bands ; (3) halteres covered with 

 white scales on knob with a black patch in centre ; (4) a very broad 

 white band on the tibio- tarsal articulation of the hind leg ; and (5) 

 most elaborate ringing and maculation of all legs. 



Palpi : in the female, black with white tips and with narrow white 

 bands at the next three articulations ; in the male with large clubs mostly 

 white, but with narrow black band at middle and base ; in the male there 

 are also two additional white bands on the club, one at the middle and 

 one near the base as well as many white scales on the basal half. 



Proboscis : in the female black, with a marked yellow tip, slightly 

 longer than palpi ; in male the marking is the same, but it is shorter 

 than palpi. 



