March, igii.] FeLT : GENERIC SYNOPSIS OF ItONID.E. 



35 



Genus MONARDIA Kieff. 1895, type M. stirpium Kieff. 

 Males with 14 or 16 stemmed antennal segments, females with 

 11-22. This genus is most easily recognized by the subapical whorls 

 of stemmed disks on the flagellate antennal segments, especially in 

 the females. The claws, according to Kieffer, have a minute, sub- 

 apical tooth. Europe, North America. 



Genus BRYOMYIA Kieff. 1895, type B. bergrothi Kieff. 

 Distinguished from the preceding by the subapical reniform proc- 

 esses on the flagellate antennal segments. Claws bent at right angles, 

 dilated subapically. Europe. 



Genus CORDYLOMYIA, new genus, type C. coprophila, new species.* 

 Male.— Length, 1.25 mm. Antennae with 14 segments, the fifth with a 

 stem three fourths the length of the cylindric basal enlargement, which latter 

 has a length about three fourths its diameter, a thick subbasal whorl of set» 

 and on the apical half, three crenulate whorls, the distal two rudimentary; 

 apically an irregular group of short, stout, curved, chitinous spines. Palpi quadri- 

 articulate. Mesonotum dark brown. Scutellum and abdomen brown. Claws 

 strongly curved, simple, the pulvilli longer than the claws. Basal and terminal 

 clasp segments stout, the latter swollen near the middle. Dorsal plate short, 

 broadly rounded. Harpes apically with five or six stout, recurved spines. 



Female.— Length, i mm. Antennal segments 11, the fifth subsessile, with 

 a length one fourth greater than its diameter ; subbasal whori sparse, the sub- 

 ' apical band of setre short, scattering. Ovipositor short, the terminal lobes 

 probably triarticulate. 



Type Cecid 890, N. Y. State Museum. 



Antennal segments 11 or 12 in the female, 14 in the male, the 

 flagellate segments bearing subapical, frequently thick whorls of short, 

 stout, occasionally recurved spines. North x\merica. 



Genus CORINTHOMYIA, new genus, type Campylomysa hirsuta Felt. 



Antennal segments 14 in the male. Distinguished from preceding 

 forms by the series of subequal whorls of stout, curved setae on the 

 subsessile flagellate antennal segments. Pulvilli as long as the claws. 

 North America. 



Subfamily Heteropezin^. 



A small group of peculiar forms, some being most remarkable on 

 account of the great degree of specialization by reduction. The meta- 

 tarsus is usually longer than the following segments. There are at 

 *Cordylomyia coprophila, new species. 



