MUSCIDi15 STREBLID^. 
397 
Chlorojis tesniopaj Meig. Max Nowicki, ibid. p. 68, gives a detailed account 
of the economy of this fly, which has occurred in such numbers in parts of 
Central and Eastern Europe as to have become a veritable plague, destroying 
wheat-plants. Means of repressing its ravages are indicated. 
Chlorops lineata. Jenyns (Jiodie Blomefield), Pr. E. Soc. 1871 , p. x, remarks 
that similar swarms of this species to those mentioned, ibid. 1870, p. xxxiv, 
were recorded by him 39 years before as occurring in the same house. 
Oscinis pusilla, Meig. Perris (/. c. p. 362, pi. 6. figs. 16G-161) redescribes 
this species in all its stages, figuring in detail the larva, which appears to live 
at the expense of the larvae of various wood-feeding beetles. 
Sijdwnella nucis, Perris. Laboulbene, Ann. Soc. Ent. Fr. (6) i. p. 294 et seq.^ 
corroborates Perris’s remarks on the economy of this species. • 
CJilorops sidcata, sp. n., v. d. Wulp, 1. c. p. 201, Haag sand-hills, 
Oscinis rufescens, sp. n.. Walker, 1. c. p. 345, Cairo. 
Helomyzides. 
Blejyhai'iptera serrata. Perris (1. c. p. 341, pi. 4. figs. 130-137) describes fmd 
figures the larva and pupa of this species, which is apparently closely allied 
to Toxonmra. He has found the larvm in the nest of Cnethocampa pityo- 
cajnpa, on the excreta of the larvae of which they feed. 
Ephydrides. 
The puparia of Bphydra are eaten by Indians about Mono Lake, California : 
Packard, 1. c. 
Epliydra calif arnica, Clear Lake, California, and gracilis, Great Salt Lake 
(both named from larva and pupa only), Packard, 1. c. : spp. nn. 
QEsTRIDiE. 
Gastrus equi. Laboulbene notes the rarity in the perfect state of this 
species, w’^hich he has bred from a pupa found in horse-droppings: Ann. 
Soc. Ent. Fr. (6) i. Bull. p. Ixiii. 
HiPPOBOSCIDiE. 
Anapera pallida. Lucas {ibid. p. xxiii) refers to this species a pupiparous 
fly found by Fallou on Cypselus apus in Paris (16 or 20 on each bird), during 
the recent siege. 
Lipoptena dubia, sp. n., Budow, Z. ges. Naturw. xxxvii. p. 122, on Eoctilio 
dorsatns, from Venezuela. 
NYCTERIBIIDiE. 
Nyctcribia elongata, ibid., on Nyctojyhilus geqfroyi', varipes, p. 123, on 
Miniopterus morio : id. 1. c., spp. nn. 
SxREBLIDiE. 
Strebla longipes, sp. n., id. 1. c. p. 12l, on Phyllostoma hastatum. 
