124 EMPLOY. 



Rare. In Mr. Saunders's collection. (E.) 



6. albicornis, Ztt. d. s. i. 279. 9 (1842). Canus, capite antico 

 albo, antennis alls halteribusque albis, abdomine nigro, pedibus flavis, 

 tarsorum articulis apice obscurioribus. Long. 1-i 1-i; alar. 3-| lin. 



Hoary. Head shining white in front, clothed behind with white 

 hairs. Palpi white. Antennae white-, third joint conical, a little 

 shorter than the first and the second ; fourth darker and longer than 

 the third. Wings whitish; veins pale yellow; third and fourth longi- 

 tudinal veins nearly parallel. Halteres white. Abdomen black, shining. 

 Legs pale yellow ; tips of the joints of the tarsi darker ; tip of the fifth 

 joint blackish; middle femora rather thick; middle tibiae slightly 

 curved ; fore femora nearly as thick as the middle femora. 



Not rare. (E.) 



7. cursitans, Fb. s. i. 11. 447. 60 (1781); Mg. ; Mq. ; Ztt. 

 Cinereus, capite cano antice albo, antennis nigris basi luteis, alis sub- 



fulvis, abdomine subtus fulvo, pedibus fulvis, tarsorum articulis apice 

 nigris. Long. 1^-2 ; alar. 4i-5 lin. 



Cinereous, thinly clothed with pale yellow hairs. Head hoary, 

 shining, white in front, clothed behind with whitish hairs. Palpi 

 yellow. Antennae black, pubescent ; first and second joints luteous ; 

 third conical, a little longer than the first and the second ; fourth very 

 much longer than all the preceding. Thorax grey beneath. Wings 

 sligntly tawny ; veins tawny ; fourth longitudinal vein slightly curved, 

 not parallel with the third. Halteres yellow. Abdomen tawny beneath. 

 Legs tawny, clothed with tawny hairs, and with a few black bristles ; 

 tips of the joints of the tarsi black ; middle femora thick ; middle tibiae 

 curved ; fore femora rather thick ; fore tibiae slightly curved. 



Generally distributed. (E.) 



8. calceattis, Mg. zw. iii. 87. 45 (1822); Mq. ; Zii.fiavipes 

 var. y, Pin. Cinereus, capite cano antice albo, antennis nigris basi 



fulvis, alis limpidis, abdomine nigro, pedibus flams, tarsis apice nigris. 

 Long, f-1 ; alar. If- 2^- lin. 



Cinereous. Head hoary, shining white in front. Palpi white. 

 Antennae black ; first and second joints tawny ; third conical, a little 

 shorter than the first and the second ; fourth as long as the three pre- 

 ceding. Thorax beset with a few black bristles. Wings colourless ; 

 veins and halteres yellow ; third and fourth longitudinal veins nearly 

 parallel. Abdomen black, shining. Legs yellow ; tips of the tarsi 

 l}lack ; middle femora thick ; middle tibiae curved. 



Generally distributed. (E.) 



9. ecalceatus, Ztt. i. 1. 550. 6 (1839). Cinereus, capite cano 

 antice albo, antennis flams apice nigris, alis limpidis, abdomine nigro, 

 pedibus fiavis. Long. 1 ; alar. 2i lin. 



Cinereous. Head hoary, shining white in front. Palpi white. 





