MEXICAN MUSCIDAE. 187 
spots on the following segments, antennae, and legs, black; apical 
cell closed nearly at the wings margin. — Length 3,5 mm. 
Cistogaster propinqua n. sp. 9. — Head whitish; frontal 
band black; antennae partly rufous; palpi rufous; thorax grey with 
black stripes; abdomen yellowish-rufous with brown markings; legs 
black; apical cell closed nearly at the wings margin. — Length 6 mm. 
Cistogaster griseonigra n. sp. 2. — Grey; head whitish ; 
frontal band, thoracic dorsum, some portions of the abdomen 
antennae (except the rufous base of the third joint), and legs, 
black; palpi rufous. — Length 4,5---6 mm. 
Cistogaster ferruginosa n. sp. d. — Head, thorax and 
scutellum ochraceous; abdomen rufous; frontal band, antennae 
(except the rufous base of the third joint), and legs, black; palpi 
rufous. — Length 5—6,5 mm. 
Cistogaster hirticollis n. sp. d. — Head ochraceous; 
thorax and scutellum brownish, densely pilose; abdomen rufous 
with a black dorsal stripe; frontal band, antennae, and legs, 
black; palpi rufous. — Length 5,5 mm. 
Cistogaster variegata n. sp. 4. — Head ochraceous ; thorax 
and scutellum yellowish-grey, thoracic dorsum with four brown 
stripes; abdomen rufous with black markings; frontal band, antennae, 
and legs, black; palpi rufous. — Length 4 mm. 
OCYPTERINAE. 
Ocyptera signatipennis n. sp. d. — Head whitish; thorax 
and scutellum blackish; abdomen rufous, with a black dorsal band 
and white incisions; antennae and legs black, the tibiae dark 
rufous; wings brownish on the costa and some of the veins bor- 
dered with brown. — Length 14 mm. 
