212 Psyche [October 
This genus is proposed by Mr. Townsend to include a single 
species,—Frontina aletie Riley, and as I understand it, to separate 
this form from Frontina frenchii Will., and F. archippivora Will., 
both of which have marginal macrochetz on the first two abdom- 
inal segments in both sexes. After a careful comparison of the 
characters afforded by the puparia, which it may be remarked, 
are frequently of great assistance in the study of the Tachinide, 
and of the adult characters, including those afforded by the geni- 
talia of the males, I have come to the conclusion that there is no 
good reason for the generic separation of aletie and frenchitv. 
In the “Taxonomy of the Muscoidean Flies,” p. 88, Mr. Town- 
send himself included aletie in the same genus with hesperus 
B. and B. which Mr. Coquillett in his “Revision”’ gives as a syn- 
onym of frenchit. 
Cordyligaster septentrionalis Towns. 
This form, described by Mr. Townsend from specimens from 
Plummer’s Island, Md., is evidently C. minuscula v. d. Wulp, 
which was described from various localities in Mexico. A long 
series of specimens of this species is in the U. 8. N. M. collections, 
and a careful study of the series and comparison with the types 
and co-types of Mr. Townsend’s species, failed to disclose any 
specific differences. The description given by Mr. Townsend 
differs very little from that given by van der Wulp in the Biologia 
Centrali Americana, and there can be no doubt as to the specific 
identity of the two forms. 
In the “Taxonomy of the Muscoidean Flies,” p. 80, Mr. Town- 
send has described a new genus and species, Oedemasoma nuda, 
from a male specimen collected in Nevada, and remarks upon 
its close resemblance to Wahlbergia brevipennis Loew, to which 
Mr. Coquillett had referred this specimen with a query. The 
only differences which Mr. Townsend was able to find were slight 
differences in the position of the hind cross-vein, in the length of 
the petiole of the apical cell, and in the distribution of the pollen 
on the head and thorax. Through the kindness of Mr. Samuel 
Henshaw, I have been able to examine Loew’s type in the Museum 
of Comparative Zoology in Cambridge. To all appearances 
Loew’s type is somewhat greased, which undoubtedly accounts 
for the absence of the slight silvery pruinosity on the parafrontals 
