2 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
metallic testaceous or yellow color—Bengalia, Phumosia, Ormia, and 
Palpostoma. Macquart (1835, p. 248) lumped all these as subgenera 
under a new genus Ochromyia; later (18438, p. 276) he recognized 
Bengalia as a distinct genus. Brauer and Bergenstamm, in their 
final synopsis of the muscoid flies (1898, p. 178) tabulate Ochromyia 
and Bengalia together, omit Ormia and Palpostoma as unknown to 
them, and add two new genera, Zonochroa and Auchmeromyia. 
Brauer alone later (1895, p. 594) takes up the group again, adding 
the neotropical Mesembrinella Giglio-Tos and one new, Hemilucilia, 
from South America. 
Including all the above genera and several more recent from the 
Old World, adding Chloroprocta Van der Wulp from tropical America 
and six new genera from the Eastern Hemisphere, Surcouf has 
constructed a modernized Muscidae Testaceae of 20 genera, 2 sub- 
genera, and some 29 species. He includes without having seen them 
Ormia and Palpostoma, which, although included in 1830, are totally 
divergent forms, as shown by the material of both in the United 
States National Museum. Omitting these from the group, it still 
remains a question whether the remainder form a natural tribe. 
Bengalia would be the typical form around which the rest should be 
grouped if sufficiently related; and characters other than color would 
have to be found to unite them. 
Villeneuve (1920, p. 225), criticizing Surcouf’s grouping because 
the genera assembled are not sufficiently related to each other, 
tabulates the Calliphorinae sens. lat. and limits the Testaceae to 
Xanthocalliphorinae Villeneuve, new name—in which, however, he 
does not include either Bengalia or Phumosia, the foundation of 
Robineau’s group. No American known genus would be included 
in Xanthocalliphorinae, even after adopting some changes suggested 
by Surcouf in an answer to the criticism.'' Nor do I believe that 
any American genus can be associated with Bengalia or Phumosia 
in a natural group of smaller dimensions than Calliphorinae in the 
wide sense. 
Without giving the other Old World genera further consideration 
here, I take up Palpostoma and pass to the neotropical forms. 
Genus PALPOSTOMA Robineau-Desvoidy. 
Palpostoma RosinEAv-Desvoipy, Myodaires, 1830, p. 429. 
Opsophasiops TOWNSEND, Proc. Biol. Soc. Wash., vol. 28, 1915, p. 22; Insecutor 
Ins. Menst., vol. 3, 1915, p. 115, syn. 
Palpostoma Surcour, Revision Musc. Test., 1919,p. 116, not seen. 
The type and sole original species of Palpostoma is testacea, from 
Australia. The characters for both genus and species were given in 
a few words—arista barely pubescent; proboscis at tip with a pair 
1 Bull. Soc. Ent. France, 1920, p. 250. 
