No. 3.] Reprints and Miscellaneous Notes, I45 



(3) Aleiirodes cotesi% Maskel!. 



Larva yellow, the median region darker than the margin ; form 

 elliptical ; length about -^^^ inch. In the earliest stste only very faint 

 indications of the insect itself appear, and the whole is very thin and 

 flat ; later on the enclosed future pupa begins to be visible, and the 

 ventral surface becomes more convex ; the eyes also appear. The 

 larval integument becomes too small for the growing insect, and splits 

 longitudinally ; and in the early pupal state it may be seen attached 

 along the dorsal edges of the pupa-case. Margins somev/hat 

 thickened, the adjacent tubes forming minute crenulations, and within 

 it the dorsum bears numbers of very small circular pores ; from these 

 and from the marginal tubes is produced a quantity of white waxy 

 matter, some of which covers the dorsum in scattered patches, and 

 the rest spreads out round the larva in a very long fringe of delicate 

 threads, frequently much longer than the insect itself. This waxy 

 matter is very brittle, and, as a rule, the whole surface of a leaf is 

 powdered over with the fragments, making the leaf look as if 

 mildewed. 



Pupa-case, in the earliest state, scarcely distinguishable from the 

 late larva ; afterwards, as the insect grows, it becomes much thicker. 

 The form remains elliptical ; the length reaches about -g^-g- inch. The 

 dorsal disk is slightly convex, flattened towards the margin; it is 

 larger than the ventral disk, and slightly overlaps the sides, which 

 are vertical. The hollow thus formed is covered by a ring of thin 

 white wax, and there is also a plate of wax beneath the ventral 

 si';/face ; portions of this ring and of the plate are frequently seer 

 amongst the long threads of the larva. The pupal margin is crenu- 

 lated but bears no fringe, and the dorsum has no pores or wax. The 

 outline of the enclosed pupa may be made out indistinctly on the 

 dorsum, and the rudimentary organs ventrally on turning over the 

 case. . Vasiform orifice subconical, with regularly convex sides, the 

 anterior edge concave, operculum sub-elliptical ; lingula very short, not 

 extending beyond the operculum. 



Adult form unknown. 



Hab. — In India, on Rosa. My specimens were sent by Mr, Cotes 

 late of the Indian Museum, Calcutta. They came from Quatta 

 Baluchistan. I have named the species after him. 



The overlapping of the sides by the dorsal disk of A. cotesii is 

 found also in a New Zealand species, A. fagt, Maskell, 1889; but that 

 insect has no fringe, and the margin bears twenty-four hairs. 



u 



