560 
ZOOLOGICAL LITERATURE. 
Endocephalaj g. n., Lioy, Atti 1st. Ven. 3“ ser. tomo x. p. 81,= Cephenemyia 
(Lat.), the latter name, in Lioy’s opinion, too closely resembling Cephalemyia, 
Krefft has given (Trans. Ent. Soc. N. S. W. p. 100, pi. 8) a description of 
the metamorpho.sis of a Dipterous parasite upon Australian frogs, belonging to 
the genus Batrachomyia (MacLeay). The parasitic larvae are found between 
the skin and the flesh behind the tympanum ; the larvae are of a yellow colour, 
and may be squeezed through a small opening that exists over them. When 
they quit the frog the latter usually dies. The change to the pupa-state is 
usually eflected on the lower surface of a piece of rock in some damp locality. 
The perfect insect emerged, in the case observed by Kreft't, in thirty-two days. 
This parasite is common upon Cystignathm sydneyensis, and has also been met 
with upon Uperoleia mannorata, Pseudophryne hibronii, and Ilyla citropus. 
(See also Brauer, Verb, zool.-bot. Ges. in Wien, Band xiv. pp. 894-898 j and 
Entomologist, vol. ii. pp. 109-111.) 
Platypezidas. 
Platypeza fasciata (Fab.). Frauenfeld (V erh. zool.-bot. Ges. in Wien, Band 
xiv. pp. 88 & 69) describes the metamorphoses of this species, and indicates 
the diflerences presented by its larva and pupa when compared with those of 
Scenopinus. He observes that these differences in the preparatory states, as 
indeed those presented by the perfect insects, indicate the necessity of a sepa- 
ration of these two groups. The Platypezidce he thinks most nearly allied to 
the Anthomyice, and the ScenopinidcB to the Therevidce. 
SYRPIIIDiE. 
The larvae of a species of Cheilosia living in truffles are mentioned by 
Laboulbene, Ann. Soc. Ent. Fr. 4® s(5r. tome iv. p. 88. 
Walker publishes some observations on swarms of Syrphi observed last 
year in the Isle of Wight. Ent. M. Mag. vol. i. p. 139. (The Entomologist 
and Zoologist also contain notes on this subject.) 
Walker describes the supposed male of his Baccha purpuricola. Proc. Linn. 
Soc. vol. vii. p. 212. 
New genera ; — 
Enops, Lioy, Atti 1st. Ven. 3“ ser. tomoix. p. 743 {Eristalu,Si\xci. ex parte). 
Arista naked j eyes villose j marginal cell of the wings closed, not reaching 
quite to outer margin of wing, much shorter than mediastinal cell. Sp. E. 
tenax (Fab.), &c. 
MicrorhincuSf Lioy, 1. c. p. 761. Allied to Milesia j face interiorly prolonged, 
with a prominence ; posterior coxsa without teeth. Sp. M. vespiformis (Liim.), 
fallax (Idnn.), hombylans (Fab.), &c. . 
Psylogaster, Lioy, 1. c. p. 753 {SyrphuSf auct. ex parte). Abdomen nar- 
rower than thorax, minute. Sp. P. yrossularice (Meig.), melUnus (Latr.), 
rosarum- (Meig.), &c. 
Axonay Walker, Proc. Linn. Soc. vol. vii. p. 211. Body subfusifomij head 
shortly conical j eyes very large (S') ; antennas very short, third joint round, 
arista naked ; legs slender ; wings acute, cubital vein much bent, anal sub- 
undulate. Sp. A. volucelloidesy Walk. p. 212, from Mysol. 
