394 CHARLES T. BRUES. 



tentatively at least. It resembles Gymnophora in the partial absence 

 of the costal bristles but differs by its setulose legs. Possibly if the 

 type species is ever identified, it may be possible to determine the 

 validity of the genus. 



It is quite possible that Platyphora Verrall may be a synonym of 

 Llssometopia, as these two genera are the only ones known to me in 

 which the front is not at all bristly. If this be so then Lisscmetopia 

 has priority over Platyphora. 



M 1IOSI V Lioy. 

 1864. Lioy Atti, Soc. Veneti., 78. 



" Frontal macrochretse directed downwards; vertex with a trans- 

 verse tubercle, anterior tibiae with two or four lateral bristles, inter- 

 mediate ones not ciliated ; posterior ones with a lateral bristle. Wings 

 ciliated, with the marginal nervure simple, extending beyond the 

 middle of the wing. Submarginal reaching to the apex of the wing. 

 Median nervure straight." 



"The name refers to the occurrence of these insects in forests." 



Type, N. incrassata Meig. 



The generic diagnosis contradicts the descriptions of Meigen and 

 others (see Becker, '01, p. 38) of the species chosen as type, as 

 regards the chsetotaxy of the middle tibia?. As such is the case, the 

 generic name can hardly be applied with propriety to the group 

 which happens to agree with a diagnosis drawn up from an incor- 

 rectly determined species as type, and will have to be discarded.* 



HIERONYMUS Weyenbergb. 

 1886. Weyenbrgh, Tidschr. Ent, xxix. 



Antenna? small, placed low down, almost on the border of the 

 mouth. Proboscis arcuate, strongly hairy, palpi small. Thorax 

 strongly arched and more or less concealing the head. Legs with 

 only short bristles; femora long and slender; tibiae broad, each with 

 two apical spurs and with bristles. Wings very long and wide; costal 

 vein with short bristles, mediastinal vein not very distinct. 



Important characters, translated from Wyenbergh's generic diag- 

 nosis. 



From the above it is impossible to tell the generic relations of this 



* The species designated belongs to Phora, and the description applies in its 

 entirety neither to the type species nor to any known group. 



