1894] Entomology. 445 
in his descriptions of North American Trypetidæ, with notes. Good 
„descriptions of a large number of new species are published, together 
with valuable notes on the distribution of those already known. Two 
new genera—Polymorphomyia and Xenochæta—are characterized. 
Two plates illustrate the wing markings of many species. 
North American Dolichopodidæ.—Professor J. M. Aldrich in 
his New Genera and Species of Dolichopodidæ* describes five new 
species, and characterizes two new genera—Dactylomyia and Metapel- 
astoneurus. He also gives a table of the species of Sympycnus. 
Entomological Notes.—At a recent meeting of the Entomological 
Society of London Mr. S. H. Scudder “exhibited the type-specimen of 
a fossil butterfly—Prodryas persep hone—found in beds of Tertiary Age 
at Florissant, Colorado. He said the species belonged to Nymphalide, 
and the specimen was remarkable as being in more perfect condition 
than any fossil butterfly from the European Tertiaries. He also said 
that he had found a bed near the White River on the borders of Utah 
in which insects were even more abundant than in the Florissant beds.” 
K. T. Nogakushi of the Imperial University, Tokio, publishes* a 
preliminary notice of his investigations of the Spermatogenesis of Bom- 
mori. The author distinguishes four zones in the follicles: the 
formative, growing, ripening, and that of metamorphosis. 
_Ata recent London sale a specimen of Chrysophanus dispar sold for 
SIX pounds, ten shillings; and a pair of Noctua subrosea for six pounds 
SIX shillings, 
In his report as Dominion Entomologist for 1893, Mr. James 
Fletcher discusses a large number of injurious insects affecting various 
Canadian Crops. 
‘Kansas University Quarterly, II, 159-174; Jan., 1894. 
L. c. 151--157. 
- Mon. M 
* Zool. Anzeiger, XVII, 20. 
