DIAGNOSES 
OF 
NEW MEXICAN MUSCIDAE, 
BY 
F. M. VAN DER WULP. 
A short time after the first parts of my work on the Central- 
American Muscidae (Biologia Centrali Americana, Diptera, vol. Il) 
were published, I received from the Editors other Mexican col- 
lections containing many new species and even some new genera 
belonging to the groups already treated of. In due time these new 
collections will be fuily described in a supplementary part of the 
above mentioned work, but in meanwhile the Editors have kindly 
allowed me to print short diagnoses of the new genera and species 
in the «Tijdschrift voor Entomologie ». 
PHASINAE. 
Trichopoda nitidiventris n. sp. d. — Black; face silvery- 
white; transverse suture of the thorax and indistinct lines before 
it, whitish; abdomen shining, with the anus rufous; legs black, 
fringes of the hind tibiae black with yellow tips; tegulae dark 
brown; wings black, their hind border and tip broadly whitish. — 
Length 10 mm. 
Trichopoda alipes n. sp. d. — Black; face with white 
reflections; humeral spots and two thoracic lines white; legs black, 
base of the middle and hind femora rufous; fringes of the hind 
tibiae black; wings black, with the tip and hind border broadly 
hyaline and the end of the costa yellowish — Length 7,5 mm. 
