1933 ] 
Notes on American Trypetidse 
51 
lower orbital bristles, two of upper; the ocellars are mod- 
erately developed or weak; the occipitals are black, fine. 
The third antennal joint is moderate to long, rounded; the 
face is almost flat, the lower edge projecting only slightly if 
at all. The dorsocentrals are behind the anterior supra- 
alars; there are two pairs of scutellars. The third vein is 
spinose above on the lower half at least. 
I can find no basis for the oft repeated statement that 
Euleia Walker is preoccupied, except that Hubner had pre- 
viously used the variant spelling Eulia in the Lepidoptera. 
Euleia limata (Coquillett) 
Aciura limata Coquillett, 1899, p. 263. 
This species, from the Eastern United States, seems to 
be strictly congeneric with the European csesio. It is a Cera- 
titine form, in no way related to either Aciura or Xantha- 
ciura. 
Euleia nigricornis (Doane) 
Aciura nigricornis Doane, 1899, p. 183, pi. Ill, f. 7. 
Despite the peculiar sex characters of the male, this spe- 
cies seems to fit here Ipetter than anywhere else. 
Genus POLYMORPHOMYIA Snow 
Snow, 1894, p. 165. (type, P. basilica Snow, sole species). 
The front is higher than wide, hairy. There are three 
lower orbitals, one upper orbital; the ocellars are well de- 
veloped. The third antennal joint is long; the face is re- 
treating ; the occipitals are white and stumpy. The dorso- 
centrals are in front of the anterior supra-alars ; there are 
two pairs of scutellars. The third vein is spinose; the 
wings broad. 
Two species have been described in this genus. 
Genus PSEUDEUTRETA Hendel 
Hendel, 1914, p. 86. (type, Trypeta adspersa Wiedemann) 
The front is higher than wide, hairy. There are three 
lower orbitals, one upper orbital; the ocellars are well de- 
