CIIEILOSIA. 283 



Bluish-black, clothed with short tohltish hairs. AntcnncB black ; third 

 joint piceoiis. Wings grey, brownish beneath the fore border. Alulae 

 white. Halteres yellow; sometimes with a brown spot on the knob. 

 Lef/s black ; tarsi clothed beneath Avith ferrugiuous down. 



Generally distributed. (E. S. I.) 



9. nigrina, Mg. zw. iii, 283. 7 (1822). Nigra ni(jro-hirta, alis 

 cinereis, abdoiuine ulbo-hlrto. Long. 5 ; alar. 10 lin. 



Black, clothed with black hairs. Eyes hairy. Wings grey. Halteres 

 tawny, their knobs mostly black. Abdomen clothed with white hairs. 



Rare. lu the collections of the Entomological Club and of 

 Mr. Stephens. (E.) 



10. albitarsis, Mg. zw. iii. 290. 23(1832); Mq. Atra, abdo- 

 mine albido-hirto, pedibus piceis, tarsis pallldls. Long. 3^ ; alar. 9 lin. 



Male, var. ? Deep black, clothed with black hairs. Eyes hairy. 

 Wings almost colourless. AlultC white. Halteres pale yeUow. Ab- 

 domen chalybeous along each side and at the tip, clothed on each side 

 with rather long whitish hairs. Legs piceous ; second, third, and fourth 

 joints of the fore tarsi yellow, of the posterior tarsi ferruginous. 



Eare. In the collection of the Entomological Club. (E. S. I.) 



11. mutabilis. Fin. syrph. 54. 10 (1816); Mg. ; Mg. ; Ztt. 



Nigra albido-hirtu, antennis piceis, ahs subcinereis ad costam subfulvis, 

 abdomine nigro-ajneo, tibiis basifulvis. Long. 4-41^ ; alar. 8-9 lin. 



Black, clothed vAth ichitish hairs. Antennce piceous. Wings pale 

 grey, with a very shght tawny tinge beneath the fore border. Alulae 

 white. Halteres pale yellow. Abdomen eeneous-black. Tibia taicny 

 towards the base. 



Generally distributed. (E. S. I.) 



12. scutellata. Fin. syrph. 55. 13 (1816); Mg. ! zw. iii. pi. 30. 

 f. 29, 30 ; Mq. ; Ztt. Wi^xo-?&\\e>x, antennis ferriighieis, scutelli margine 

 postico fulvo, alis subcinereis, abdomine nigro, pedibus fidvis piceo- 

 cinctis. Long. 3^-4; alar. 7-8 lin. 



iEneous-black, clothed with pale tawny hairs. Antenna bright fer- 

 ruginous ; fourth joint black. Scutellum tawny along the hind border. 

 Wings pale grey. Alida; white. Halteres yellow. Abdomen black. 

 Legs tawny ; femora and tibia) with broad piceous bands ; tarsi partly 

 piceous. 



Generally distributed. (E. S.) 



13. nigripes, Mg. zw. iii. 282. 8 (1822); Mq. \Ni(jra albido- 

 hirta, antennis piceis, alis cinereis basi obscurioribus, abdomine chalybeo. 

 Long. 3-3 i ; alar. 6-7 lin. 



Black, clothed with short whitisli hairs. Antenna piceous. Wings 

 grey, darker toicards the base. Alulae wdiite. Halteres yellow. Ab- 

 domen chalybeous. 



Not common. (E.) 



