MEXICAN" MUSCIDAE. 189 



abdomen, and legs, black; wings blackisb along the costa. — 

 Length 7,5 mm. 



Xanthomelana gracilenta n. sp. <? j. — Thorax black with 



yellow or whitish markings; head yellow (<?) or white (2); frontal "\ 

 band, antennae, and legs, black; abdomen yellow, with a dorsal 

 band and the last segment black; tegulae and balteres pale yellow ; 

 costal half of the wings blackish. — Length 4,5 mm. 



Xanthomelana anceps n. sp. <?. — Deep black, including 

 tbe antennae, legs, tegulae and halteres, only the abdomen yello- ^j 

 wish-red; wings blackish; front triangular, the eyes nearly conti- 

 guous on the vertex. — Length 5 mm. 



P H A N I N A E. 



CLIN06ASTER n. gen. — Front slightly prominent , as broad 

 as the eyes; frontal bristles weak; no orbital bristles ; two stronger 

 bristles on the vertex ; face somewhat inclined ; occiput swollen ; 

 vibrissae rudimentary Eyes bare. Antennae elongate, nearly as 

 long as the face; first joint very short; the second much longer, Jj 



the third twice as long as the second; arista bare. Thorax with 

 macrochaetae; abdomen elongate, curved down; four visible seg- 

 ments, the anal segment short; some short marginal macrochaetae. 

 Legs slender; foot-claws and pul villi elongate in i. Wings shorter 

 than the abdomen; apical cell closed and shortly petiolated; cur- 

 vation of the fourth vein with acute angle. 



Clinogaster notabilis n. sp. $. — Black; face and reflec- 

 tions on the thorax whitish; hind margins of the first two abdo- 

 minal segments narrowly yellow; anal segment and base of the 

 antennae rufous; wings with a brown shadow at the end of the 

 costa; their base yellowish. — Length 12,5 mm. 



P E*N T H S I A n. gen. — Front slightly prominent , broad in both 



