MlSCELLANEO US N TJES. 



6l3 



Calotrophis Fly Egg Clusters. 



The Larva. — The larvte hatch out from 4 to 5 days from oviposition. They 

 are generally cylindrical with one end pointed and the other blunt ; the 

 fully grown maggots are of a pale yellow colour and measure from 8 to 10 

 m.m. in length. The jumping habit which is a special feature of all fruit fly 

 maggots is well developed in these. On hatching from the eggs the maggots 

 bore into the soft ovary and after this is completely eaten up, the mesocarp 

 is attacked. The larval life lasts from 12 to 15 days. When full grown the 

 maggots cut a hole through the epicarp and drop to the soil and pupate 

 there at a depth of f" to 1". A thin parchmenteous endocarp a net work 

 of fibrous mesocarp, and a small pellet of excreta mixed up with portions 

 of ovary are the remnants of the fruit adhering to the plant when the 

 maggots leave the fruit for pupating. 



The Pupa. — The pupse are generally whitish at first and gradually turn 

 from light brown to dark brown as the period of emergence of the fly 

 approaches. The pupse are from 4-5 to 5 m.m. in length and 2'5 to 3 m.m. 

 in thickness and the pupation period lasts from 11 to 12 days. 



The Adult. — Length 6f to 7 m.m. Wing expanse 15 m.m. From the 

 characteristic colouring and wing markings, the flies can very easily be made 

 oat as a Trj'^petid. I found this fly named Lepto.vyda lonc/istyhis, Wied, in 



