180 THE ENTOMOLOGIST. 
with the skin, and forms afresh, being very noticeable in the full- 
grown larva. The larva, when full grown, spins the grass-stems 
together low down by a network of white silk, and changes to a 
long yellowish green pupa (in which the dorsal stripe of the larva 
is retained), and in this state it remains from about a fortnight 
to three weeks, according to temperature. About four days before 
the perfect insect emerges the wings assume their golden brown 
colour and the eyes become a brilliant crimson, changing in two 
days to black, and the black-tipped antenne are then plainly 
visible through the pupa-case. The larva appears to be a slow 
and deliberate eater, living as such from about eight to ten weeks, 
and, when young, both spins in the interior of a blade and has 
the power of falling from a thread from the mouth; it also 
frequently retreats, when feeding, in a backward movement down 
the blade. 
Grasmere, North Finchley, N., July 19, 1892. 
A CECID BRED FROM COCCID. 
By T. D. A. Cocxerett, F.Z.8., F.E.S. 
Pror. Comstock, in the Report of the U.S. Department of 
Agriculture for 1880, records the breeding of a Diplosis from 
under the scale of Aspidiotus juglans-regi@, Comst., in California. 
At the same time, he quotes from various writers on the habits 
of Diplosis and Cecidomyia, showing that Diplosis aphidimysa, 
Rd., and Cecidomyia napi live under Aphides;* while many 
others live as guests in galls formed by different species. Inqui- 
line Cecids are, in fact, quite numerous, and several might be 
added to the list given by Comstock; but very little appears to 
be known about those bred from Coccide, notwithstanding the 
interesting nature of the relationship. 
In October last year some leaves of Acalypha, infested with 
species of Parlatoria, Aspidiotus, and Dactylopius, were sent to 
the Museum of the Jamaica Institute from the Parade Gardens, 
Kingston. From these were bred many specimens of the small 
Diplosis, described below under the name D. coccidarum. 
Later, Miss L. A. Long gave me some pieces of Coleus, 
gathered in Kingston, badly infested by Orthezia and Dactylopius, 
and from these were bred many more of the same Diplosis. ‘he 
empty Cecid pupz were afterwards found sticking out from the 
masses of secretion, &c., formed by the Coccide. Again, quite 
recently, another specimen has been bred, which may be described 
as follows :— 
* Compare also the habits of Diplosis grassator, Fyles (Rep. Ent. Soc, 
Ontario, 1888, p. 380), which is associated with Phyllowera, 
