CHEILOSIA. 283 



Bluish-black, clothed with short whitish hairs. Antennae black ; third 

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

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

 Legs black ; tarsi clothed beneath with ferruginous down. 



Generally distributed. (E. S. I.) 



9. nigrina, Mg. zw. iii. 282. 7 (1822). Nigra nigro-hirta, alis 

 cinereis, abdomine albo-hirto. 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. In the collections of the Entomological Club and of 

 Mr. Stephens. (E.) 



10. albitarsis, Mg. zw. iii. 290. 22(1822); Mq. Atra, abdo- 

 mine albido-hirto, pedibus piceis, tarsis pallidis. Long. 3| ; alar. 9 lin. 



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

 Wings almost colourless. Alulae white. Halteres pale yellow. 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. 



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



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

 Nigra albido-hirta, antennis piceis, alis subcinereis ad costam subfulvis, 

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



Black, clothed with whitish hairs. Antenna piceous. Wings pale 

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

 white. Halteres pale yellow. Abdomen asneous-black. Tibiae tawny 

 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. Nigro-a3nea, antennis ferrugineis, scutelli margine 

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

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



JSneous-black, clothed with pale tawny hairs. Antennae bright fer- 

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

 Wings pale grey. Alulse white. Halteres yellow. Abdomen black. 

 Legs tawny ; femora and tibiae with broad piceous bands ; tarsi partly 

 piceous. 



Generally distributed. (E. S.) 



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

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

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



Black, clothed with short whitish hairs. Antennae piceous. Wings 

 grey, darker towards the base. AlulaB white. Halteres yellow. Ab- 

 domen chalybeous. 



Not common. (E.) 



