180 MUSCIDJ3. 



tibiae, blackish ; middle tibiae with few bristles ; second joint of hind 

 tarsi linear, twice as long as the first. 

 Not rare. (E. I.) 



8. scutellaris, Hal. E. M. iii. 329. 8 (1836). Nigra, facie coxis 

 genubusque teslaceis, scutello aterrimo, halteribus albidis, tarsorum posti- 

 corum articulis duobus incrassatis. Long. | ; alar. 2 lin. 



Like L. ochripes. Face and fore margin of the front pale testaceous. 

 Thorax glossy-black. Scutellum elongate, opaque, deep black. Wings 

 hyaline ; veins pale-brown ; costal darker ; radial ending much further 

 from the subcostal than from the cubital, which does not quite reach 

 the tip of the wing. Halteres whitish. Abdomen dull-black. Tibiae 

 and tarsi dusky ; fore coxa, base of the tibia, often the entire of the 

 middle tibia and tarsi testaceous or rust-brown; second joint of hind 

 tarsi thickened, twice as long as the first. 



Not common. (E. I.) 



9. nivalis, Hal. E. M. i. 178 (1834). Nigra, facie pedibusque 

 ferruginosis, alis halteribusque abbreviatis. Long. 1 lin. 



Dusky-black. Face dull rust-colour. Arista finely pubescent. Scu- 

 tellum shorter than the metathorax. Wings brownish, not extending to 

 the end of the abdomen, sometimes very small. Halteres abortive, dusky ; 

 no prabrachial transverse vein. Legs pubescent, dull rust-colour ; femora 

 and often the middle of the posterior tibiaB dusky ; second joint of hind 

 tarsi not dilated. 



Not rare. (I.) 



10. quisquilia, Hal. E. M. iii. 330. 10 (1836). Nigra, alis in- 

 fumatis, halteribus fuscis ; Mas, tibiis simplicibus. Long. 1 ; alar. 21 lin. 



Like I/, crassimana, but tJie tarsi are slender, and the fore tibia not 

 clavate in the male. Scutellum longer and legs more pubescent than in 

 most of the following species. 



Eare. In Mr. Halida/s collection. (I.) 



11. fungicola, Hal. E. M. iii. 330. 11 (1836). Nigra, nitida, 

 fronte opaca, alarum lineola costali nigra, halteribus nigris. Long, f ; 



alar. 2 lin. 



Glossy-black ; pubescence very fine. Front opaque, deep black, with 

 a glossy triangle. Face elevated between the antennae, rather hoary. 

 Wings ample, blackish, rarely hyaline; veins dusky, black from the sub- 

 costal to the radial, which extends scarcely half-way from the subcostal 

 to the cubital ; costal pubescent at the base ; discal transverse parted 

 by almost twice its length from the praebrachial transverse ; submar- 

 ginal areolet wider than usual. 



Not rare. (E. I.) 



12. erratica, Hal. E. M. iii. 330. 12 (1836). Nigro-fusca, facie 

 pedibusque ferrugineis, alis infumatis, halteribus fuscis. Long, f ; alar. 

 2 lin. 



