THE general subject. 
Im. 187 
Osten-Sacken, C. R. Western Diptera : Descriptions of new genera 
and species of Diptera from the region west of th6 Mississippi and 
especially from California, Bull. U. S. Geol. Sur/. iii. pp. 189-354. 
The author is impressed with the unity of the Western fauna. The 
species taken by himself in California disclose unexpected analogies and 
coincidences between its fauna and the faunae of Europe, Chili, and even 
Australia, and also some unforeseen dijfferences from the fauna of the 
United States. Many new species are described, and others indicated, 
and the paper is full of very valuable and practical remarks on syn- 
onymy, structure, and geographical distribution. Some remarks on the 
latter (pp. 349-354) are more properly included in the General Subject 
of Insecta [ante^, p. 7]. 
ScHNABL, J. Insectorum quae Diptera appellantur ab Johanne Schnabl, 
Henrico Dziedzicki, Johanne Wankowicz, Ludovico Anders, diversis 
Poloniae atque Minsciae provinciae locis collectorum, libellus, a Dr. 
Joh., Schnabl conscriptus. Varsaviae : 1877, 4to, pp. 24. 
Extracted from the Proceedings of the 5th Meeting of the Association 
of Russian Naturalists and Physicians, in Warsaw. 
WuLP, F. M. VAN DER. Diptera Neerlandica. De Tweevleugelige 
Insecten van Nederland. Eerste Deel. s’Gravenhage : 1877, large 
8vo, pp. 498, pis. i.-xiv. 
The commencement of a valuable work (written, unfortunately, 
entirely in Dutch), in which the Netherlands representatives of the 
Nematocerous (and the Stratio[to]myiidcB and CosnomyUdee of the Brachy- 
cerous) Orthorrlmpha are described, with notices of such allied genera 
and species as are likely to occur, or to be useful to the Dutch Diptoro- 
logist. Two new species are characterized. The plates, on which 
neuration, &c., is figured, with a type of each family, are of very great 
excellence. 
K. Fritsch, Denk. Ak. Wien (Math. Nat. Cl.) xxxiv. p. 33 et seq., 
gives tables of the times of appearance, &c., of 870 species of Diptera in 
Austro-Hungary, with other apparently useless fly-statistics. 
North America. For list of fossil Diptera (including new genera and 
species) from Tertiary beds of the Lower White River in Utah and 
Colorado, and at Quesnel Mouth, British Columbia, see Scudder, anted, 
pp. 3 & 4. 
List of Canadian Diptera ; W. Couper, Canad. Ent. ix. pp. 133-135. 
H. Loew, Z. ges. Naturw. xlviii. [1876], pp. 317-340, describes new 
species from North America. 
G. Gerke, Verb. Ver. Hamb. iv. [pp. 6, pi. ; sep. copy], describes the 
metamorphoses of the naked-winged species of Ceratopogon, of Tanypus 
nigro-punctatus, Staeg., and of Hydrellia mutata, Meig. 
Terminology. J. M. F. Bigot, Bull. Soc. Ent. Fr. (5) vii. p. clxxxiii., 
apparently ignorant of the fact that entomological nomenclature is 
written in Latin, and that the Greek “ v ” becomes “ y in that tongue, 
seriously proposes to write Echinomuia, Anthomuia, &c., for Echinomyia, 
