from the Rio Nautla, State of Vera Cruz. 279 
to me as authority, while in my paper I stated that it was 
found ‘over the eastern half or more of the United States 
and in Mexico.” He has still further, in the same manner, 
given New Mexico as a locality for Ocyptera dosiades. The 
paper of mine referred to (“‘ Notes on North-American Tachi- 
nide, I.,” Proc. Ent. Soc. Wash. 11. pp. 184-146) was published 
while I was in Washington, and all of my specimens therein 
mentioned, unless otherwise stated, were taken in the District 
of Columbia. These errors of locality should not be per- 
petuated, as they are very misleading with regard to the 
geographical range of species. No specimen of T'richopoda 
has ever been known, by any chance wind or shift of fortune, 
to occur in New Mexico! Neither does the genus Ocyptera 
occur there to my knowlege. 
N.B.—It should be pointed out that in Bellardi, Sage. 
Ditt. Mess., and Osten Sacken, Biol. C.-A., Dipt., the locality 
Cuautla is wrongly spelled, the mistake being doubtless due 
to the printers and proof-readers. The mistake has even 
become incorporated into dipterological nomenclature, in the 
name Dasypogon cuantlensis, Bell. (Ditt. Mess. il. p. 67). 
The specific name should be amended to cuautlensis. Cuautla 
is pronounced Kwah-oot'-lah. 
39-40. Trichopoda pennipes. 
Typical form and var. pilipes, Fabr. 
I refer here twenty-four specimens, sixteen males and eight 
females, all San Rafael, March 9 to July 18. All except 
the March 9 specimen (male), and one June 18 (male), were 
taken on flowers of the Cordia, sp., from June 30 to July 18. 
Length of males 63 to i millim., of females 7 to 
10 millim. 
Notwithstanding the great variation in size, as well as 
considerable in wing-coloration, I must locate all of these 
specimens in this species. The form without yellow on the 
wings may be continued for the present as a variety under 
the name pilipes, Fabr., the description of which applies well. 
This is apparently the form which recent writers (Roeder, 
Wulp, and Giglio-Tos) have referred to under the name 
pyrrhogaster, Wd., which I consider a synonym of pilipes, 
Fabr. The proper separation of pennipes and pilipes can be 
known only by the capture ¢n coitd of numerous specimens 
of both forms. 
Nearly all of the present specimens have at least a tinge 
of brown on the tip of the abdomen, but this cannot be said 
to be general in either sex. The colour of the scutellum 
