March. iQii.J FeLT : GENERIC SYNOPSIS OF ItONID.E. 33 



Genus MYCOPHILA, new genus, type M. fungicola, n. sp.* 

 Male. — Length, 0.6 mm. Antennas as long as the body, thickly haired, 

 fuscous yellowish ; 12 segments, the fifth with a stem one third the length of 

 the subcylindric basal enlargement, the latter with a length one half greater 

 than its diameter; subbasal whorl of setae short, scattering; subapical band 

 of sets long, curved. Palpi indistinct ; three ocelli. Mesonotum fuscous. 

 Scutellum, post-scutellum, pleurae and venter of abdomen reddish, the dorsal 

 sclerites a variable fuscous ; subcosta uniting with costa before the basal half, 

 the third vein a little before the apex ; fourth vein obsolete distally, fifth 

 forked. Halteres pale yellowish. Legs fuscous yellowish ; claws simple, pul- 

 villi rudimentary. Reared from mushrooms. 

 Type Cecid 1320, N. Y. State Museum. 



Allied to JocDiissia Kieff. and Pcroiiiyia Kieff. Fourth vein rudi- 

 mentary, obsolete distally, the male with 12, the female with 9 an- 

 tennal segments, the flagellate segments cylindric, subsessile. North 

 America. 



Genus TRICHOPTEROMYIA Will. 1896, type T. modesfa Will. 

 Location provisional ; distinguished from the two preceding genera 

 by the absence of the fourth vein. West Indies. 



CERATOMYIA, new genus, type C. johaimscni, new species. t 

 Male. — Length, 1.5 mm. Antennae very short, composed of six segments, 

 the first obconic, the second greatly swollen, subglobose, both fuscous, the 

 remaining four segments a light fuscous yellowish, obpyriform, sparsely clothed 

 with irregular, stout setae, the third segment obpyriform, with a length a little 

 greater than its diameter, the fourth a little shorter, the fifth with a length 

 nearly three fourths greater than its diameter, the sixth produced, with a length 

 fully twice its diameter and tapering to a narrowly rounded apex; each seg- 

 ment with a stout, chitinous subapical process, those on the fifth and sixth 

 segments at least, greatly swollen basally and with a length nearly equal to 

 that of the segment. Palpi ; first segment greatly enlarged, pyriform, with a 

 length one half greater than its diameter, the second greatly produced, dilated 

 apically, with a length six times its diameter, the third less than one half the 

 length of the second, fusiform ; all sparsely haired. Mesonotum, scutellum and 

 post-scutellum apparently a nearly uniform fuscous yellowish. Abdomen a 

 fuscous whitish, the genitalia yellowish. Wings hyaline, costa light brown, 

 subcosta uniting therewith near the basal third, the third vein, joined to the 

 distal fifth of the subcosta bj- a distinct cross-vein as in Micromyia, unites 

 with the margin of the wing at the apex, the fourth vein wanting, the fifth 

 uniting with the posterior margin near the distal third, its branch at the basal 

 fourth. Legs fuscous yellowish, the first tarsal segment with a length nearly 



*Mycophila fungicola, new species. 

 t Ceratomyia johannseni, new species. 



