268 NEW YORK STATE MUSEUM 



Subgenus Bezzia : barber i, expolitus, johnsoni, 

 m e d i u s , p r u i n o s u s , p u 1 v e r u s , p u n c t i p e n n i s , 

 setipes, setulosus, varicolor, venustulus. 



Genus johannseniella 



Williston, 1907 



Ceratolophus Kieffer is a synonym. Name changed owing to 

 preoccupation. 



The type of this genus is n i t i d u s Macquart. 



The following species are North American representatives of the 

 genus : antennaiis, argentatus, bimaculatus, 

 caudellii, divers us, flaviceps n. sp., gilvus, 

 lacteipennis, longicornis, maculipennis, mag- 

 nipennis n. sp., magnus, nebulosus, pictus, 

 politus, stigmalis, and v i r i d i s . 



Johannseniella flaviceps n, sp. 



The species described on page 105 (Bui. 86) may be called 

 flaviceps. To the description must be added tha^ the media 

 forks proximad of the R-M cross vein and that all claws are small 

 and equal. 



Johannseniella magnipennis n. sp. 



Male. Head cinereous, mouth parts and antennae fuscous, 

 the palpi and basal joint of the antenna rather paler. Antennae 

 rather slender, about as long as the thorax, short haired, joints 

 cylindric-oval. Eyes widely separated. Thorax densely covered 

 with a cinereous bloom, covering also the sternum, scutellum and 

 the mesonotum. Pile of the dorsum short, sparse, and pale. 

 Abdomen, which is much shrunken in both specimens, is yellowish 

 brown to brown ; genitalia darker, apical lobes yellowish, hairs 

 yellowish. 



Legs elongate, brown, including coxae ; tarsi white, the apical 

 joint of each foot black; hairs of femora and tibiae sparse, short 

 and pale ; fore metatarsus about two thirds as long as its tibia ; 

 last tarsal joint with two rows of stout blunt spines on under side, 

 fourth joint slightly broadened, somewhat shorter than the fifth; 

 claws simple, equal, about half the length of the last tarsal joint; 

 tarsi ciliate with fine stiff hairs on the flexor surface. Wings wholly 

 hyaline, including the veins except the cross vein which is brownish ; 

 wing extremely long and broad in proportion to size of fly, extend- 

 ing considerably beyond apex of the abdomen, anal angle especially 



