DIPTERA. 
343 
ScHiNER, J. R. Miscellen. Ibid. pp. 909-922. 
The first half of this paper is devoted to Diptera^ thb second 
to Arachnida. 
Verrall, G.H. Notes on some British Syrphi. Ent. Monthly 
Ma^. vol. V. pp. 7-8. 
WiNNERTZ, J. Acht neue Arten der Gattung Sciara. Ver- 
handl. zool.-bot. Gesellsch. Wien, Band xviii. pp. 533-540. 
C. Anatomical and Physiological Paper. 
Kunckel, Jules. Recherches snr Torganisation et le develop- 
pement desDipteres du genre Volucelle. Comptes Rendiis, 
tome Ixvii. pp. 1231-1234. Abstract in Ann. & Mag. Nat. 
Hist. 
ScHiNER (Verb, zool.-bot. Ges. in Wien, xviii. pp. 559-562) 
concludes his general report on the Diptera collected during 
the voyage of the ^ Novara.^ The total number of species brought 
is 922, of whicli 467, or more than half, proved to be unde- 
scribed. In 1864 S chiller estimated the number of described 
species of Diptera at 19,449 (viz. 8670 European, 2046 Asiatic, 
1644 African, 5517 American, 1056 Australian species, and 516 
species of unknown origin). Since 1864 the number of known 
species has been increased 1341, making nearly 20,800 at the 
end of 1867. Schiner expresses his conviction that this is not 
a tenth part of the whole number of existing species. 
With regard to his classification of Diptera Schiner suggests 
[I. c, p. 560) that the section of the Diptera clyclorhapha 
should commence with the Polyneura and close with the less 
highly organized Oligoneura. 
Fbauenfeld (Verb, zool.-bot. Gea. in Wien, xviii. p. 292) gives a list of 
39 species of Diptera collected by him upon the Nicobars, where, he con- 
siders, this order is the most abundantly represented of all. One half the 
species collected belong to the Muscidoe. Three-fifths of the species were 
undescribed. 
Walker furnishes a list of a few species of Diptera found in Vancouver’s 
Island, in the Appendix to Lord’s ‘ Naturalist in Vancouver’s Island and Bri- 
tish Columbia’ (vol. ii. p. 337). 
Boi8DUVAL(Ent. Ilortic. pp. 693-031) notices some of the principal garden- 
Diptera, and indicates their general habits. The Syrphidee are noticed as 
enemies to the Aphides. 
CECIDOMYIDiE. 
Schiner (Reise der Novara, Dipt. p. 3) gives a list of the described 
genera of this family, and asserts that OUgotrophus (Lat.), Rhahdophaga 
(Westw.), and Dasyneiira (Rond.) belong to Cecidomyia] Brachyneura 
(Rondi.') = Spaniocera (Winn.); Contarinia-\-Bremia-\-Phytophaga (Phil.)= 
