52 Psyche [April 
basal cell is much shorter than the second it is evident that the species 
is not a Tachydromia. Mr. Coquillett separates Tachista (or Tachy- 
dromia as here given) from Drapetis in his analytic key only by the 
comparative thickness of the front femora, an elusive characteristic. 
Tachydromia nubifera Coquillett ' has been referred by its author? 
to the genus Coloboneura, a genus which has very bristly legs. I am 
unable to corroborate this from his description alone. ‘The shortened 
second basal cell of nubifera excludes the species from Tachydromia, 
but the subopaque pruinosity and colored wings are at variance with 
the typical species of Coloboneura. 
Mr. Coquillett has assigned Drapetis flavida Williston to Tachista * 
While the male is unusually slender for a typical Drapetis this species 
lacks the constricted swollen humeri of the Tachydromia group and 
moreover the legs are pubescent and provided with bristles and both 
the marginal and the first basal cells are short as in Drapetis. The 
species can with all propriety be located in Bezzi’s recent subgenus 
Ctenodropetis. It may be here noted that the description of Tachy- 
dromia bacis Walker described from Jamaica tallies with this species. 
As Mr. Walker’s description is unusually complete, mentioning even 
the bristles of the legs, it is reasonably certain that both species are the 
same. I have specimens from Yucatan, Orizaba, Vera Cruz, Cuba 
and Hayti. Mr. Coquillett reports it from Porto Rico, and Dr. 
Williston’s specimens came from St. Vincent. It is evidently a com- 
mon species within its geographic range. ‘There is an ancient and 
brief description of Tachydromia abdominalis Wiedemann* from 
China that also applies to our specimens. Ctenodrapetis ciliatocosta 
Bezzi® from Australia is also quite similar, but is somewhat smaller. 
Possibly there is but one widely distributed form. I take it that 
abdominalis is a Ctenodrapetis rather than a Platypalpus as the abdomen 
is described as lusterless. In almost all the species of Platypalpus 
the abdomen is shining. 
Mr. Coquillett ® thinks that Phoneutisca bimaculata Loew is a 
synonym of maculipennis Walker which was described from Hudson 
1 Dipt. Commander Isl. p. 343 (1898). 
2 Proc. Ent. Soc. Wash V. p. 265 (1903). 
3 Proc. U.S. Nat. Mus. XXII. p. 251 (1900). 
Proc. Ent. Soc. Wash. V. p. 265, note. (1903.) 
4 Auss. zweifl. Ins. II. 12 (1829). 
5 Ann. Mus. Nat. Hung. II. p. 355 (1904). 
6 Proc. Ent. Soc. Wash. V. p. 266 (1903). 
