THE GENERAL SUBJECT MYCETOPHILID^. 
443 
Fkysocephala pusilla^ Meig., on Bomhus lapidarius ; the Conopidce pro- 
bably lay their eggs in larva© or pupae, and do not attack perfect insects. 
C. Ritsema, Pet. Nouv. y\. p. 367. 
Metamorphosis. Wcissman’s observations on the development of flies 
translated; Am. Nat. viii. pp. G03-G12, 661-6G7, 713-721. The two 
modes exemplified by Corethra and Musca, are sharply distinguished 
by the presence or absence of true imaginal discs ; and the author 
therefore suggests dividing insects having a metamorphosis into Insecta 
discota and adiscota. 
CECIDOMYIDiE. 
General observations on economy, &c. ; F. M. van der Wulp, Tijdschr. 
Ent. xvii. pp. 108-112. 
Cecidomyia ? millefolii^ H. Low, fig. 3, C. stachydis, Bremi, fig. 8, and 
Diplosis centralis, Winn., new to Austria ; observations on known 
Austrian species ; descriptions of larvce of species not yet known ; and 
observations oil galls; F. Low, Verb. z.-b. Wien, xxiv. pp. 151-162, pi. ii. 
C. alhipennis, Winn., = saliciperda, Duf. ; id. 1. c. p. 324. The economy 
of most of the species mentioned is noted. 
Miastor. An exhaustive discussion of the evolution of the larva by 
F. Meinert, Nat. Tids. (3) viii. pp. 345-377, pi. xii. figs. 1-22. The 
opinions of Wagner, Pagenstecher, Leuckart, and Mecznikoff are com- 
pared, and an abstract (in Latin, incapable of being condensed) is given, 
pp. 377 & 378. 
Asphondylia monacha, O. S. ; a fresh $ caught on Solidago, in Juno, 
and queried as hybornating, or belonging to a second brood. C. R. Osten- 
Sacken, Tr. Am. Ent. Soc. iii. (1871) p. 347. 
Cecidomyia resinicola, ^ , larva, pupa, and gall, on Pinus inops, 
pp. 345 & 346, cerasi-serotince, gall only, p. 346, id. 1. c. New York. C. 
suhulifex, G. Mayr, Yerh. z.-b. Wien, xxiv. p. 61, Austria ; C. trifolii, 
p. 143, fig. 4, hieracii, pp. 145 & 321, fig. 6, carpini, p. 322, Austria ; 
F. Low, tom. cit. pi. ii. : spp. nn. 
Colpodia pallidula, sp. n., Y. d. Wulp, 1. c. p. 113, pi. viii. fig. 1, Hol- 
land. 
Epidosis flavescens, F. Low, 1. c. p. 147, Austria; E.nitida,Y. d. Wulp, 
1. c. p. 113, Holland: spp. nn. 
Catocha crassitarsis, sp. n., Y. d. Wulp, 1. c. pi. viii. figs. 2 & 3, Rot- 
terdam. 
Asynapta longipennis and griseipennis, spp. nn., F. Low, 1. c. p. 148, 
Austria. 
Lasioptera carophila, sp. n., id. 1. c. p. 149, pb ii. fig. 7, Austria, 
Asphondylia pimpinellce, sp. n., id. 1. c. p. 326, Austria. 
MYCETOrniLIDiE. 
General observations on the economy, &c., of the Dutch species ; Yan 
der Wulp, Tijdschr. Ent. xvii. pp. 114-124. 
