DIPTERA. — MUSCID&. 573 
as well as a memoir by Briganti in the Aéti del Real Instit. di Napoli, 
tom. ili. 1822.) A small but beautiful allied insect has been described 
in detail by Mr. MacLeay ( Zool. Ii. No. 16. 18.), under the name of 
Ceratites citriperda, the larva of which feeds upon the pulp of ripe 
oranges. The male is remarkable for possessing two minute clavate 
filaments on the crown of the head. 
The females of many of the species of Tephritis, and the subgenera 
separated therefrom, deposit their eggs in growing plants by the as- 
sistance of their elongated ovipositor ; causing also the production of 
galls of large size, in which the larve reside, and the flies are pro- 
duced ; such is especially Urophora Cardui. (Réaum. Mém. tom. iii. 
pl. 44, 45.; Swammerdam, Book of Nature, pl. 45. fig. 1.; Fallen 
in Swed. Trans. 1814, Monogr. Swed. Tephritides.) De Geer has 
alse figured the history of two species of Tephritis. (JZem. tom. vi. 
tab. 2. fig. 6B—18.) 
The larvee of other species are developed and reside in the parts of 
fructification of different plants, which they devour. Such is the case 
with Tephr. Arctii, which Mr. Curtis states to have been reared from 
pupee found in the calyx of Centaurea Cyanus. Its larva is also stated 
to be found on Arctium lappa and Leontodon taraxacum. M. Blot has 
detailed the history of a genus allied to Tephritis, named Myopites, 
in Bulletin de Sci. Nat. September, 1828. I have reared two species 
of Tephritis from subcutaneous larve, namely, Tephritis (Euleia) Ono- 
pordinis, from celery leaves, to which it is very injurious, and Tephritis 
(Acidia) Artemisiz, from the leaves of chrysanthemums. I have pub- 
. lished a memoir on these two insects in the Gardener's Magazine, 
March, 1839. The larva of Trypeta continua, according to Bouché, 
lives in the berry of Rosa villosa; that of Psila Rosz lives in the 
root of the carrot, to which plant it is sometimes very destructive. 
(See Kollar’s Obnow. Ins. transl. p. 160.) The larvee and pupe of 
Phytomyza lateralis are found in the centre of the receptacles of Py- 
rethrum inodorum (corn feverfew), there being seldom more than one 
in each. Mr. Curtis has given no description of their preparatory 
states. The larvae of Ph. flava are subcutaneous in the leaves of Sco- 
lopendrium vulgare (Doubleday, in Entomol. Mag. No. 14. p. 415.); 
those of P. obscurella in the leaves of the holly, and those of P. flaviceps 
in those of the woodbine. (Haliday,in ditto, No.17.p.147.) The cheese 
maggot, so well known for its remarkable saltatorial powers, is the larva 
of Piophila Casei Fadl. Its habits and structure have been fully de- 
