128 EMPIRE. 



20. commiles, n. Cinereus, antennis nigris, alls sublimpidis, 

 abdomine nigro subtus fulvo, pedibus fulvis, tarsis fuscis basi fulvis, 

 genubus posterioribus fuscis. Long, li-li ; alar. 3^-4 lin. 



Grey. Head clothed above with black hairs, beneath with white 

 hairs. Palpi yellow. Antenna black, pubescent, nearly as long as 

 the head ; fourth joint long, slightly pubescent. Wings nearly colour- 

 less-, veins brown, tawny at the base. Halteres yellow. Abdomen 

 clothed with short whitish hairs, black and shining above, tawny 

 beneath. Legs tawny, clothed with very short pale yellow hairs ; tarsi 

 brown ; first joint tawny, with a brown tip ; second joint tawny at the 

 base ; tips of the hind tibiae dark tawny ; hinder knees brown. 



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



21. compungens, n. Cinereus, capite cano, antennis fuscis 

 apice nigris, alis limpidis, abdomine nigro basi subtus fulvo, pedibus 



flams. Long. \\ ; alar. 3 lin. 



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

 yellow. Antenna3 brown; third joint as long as the first and the 

 second ; fourth black, longer than all the preceding. Wings colourless ; 

 veins brown. Halteres yellow. Abdomen black, shining, tawny towards 

 the base beneath. Legs yellow ; tips of the tarsi black ; middle femora 

 very slightly thickened ; middle tibiae very slightly curved. 



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



22. robustus, Wlk. e. m. iv. 228 (1837). Cinereus, capite cano, 

 palpis albidis, antennis nigris basi fulvis, alis limpidis, abdomine nigro, 

 pedibus fulms. Long. 1 ; alar. 2 lin. 



Cinereous, rather stout. Head hoary. Palpi whitish. Antennae 

 black ; first and second joints tawny ; third tapering, longer than the 

 first and the second ; fourth much longer than the third. Wings co- 

 lourless ; veins and halteres yellow ; third and fourth longitudinal veins 

 very slightly converging. Abdomen black, shining. Legs tawny, 

 stout; middle femora very thick; middle tibiae curved; fore femora 

 thick. 



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



23. ciliaris, Fin. d. s. emp. 33. 1,2 (1815); Mg.; Ztt. Niger, 

 thoracis lateribus cams, alis sublimpidis, halteribus albis, pedibus flams. 

 Long. 1-1 i; alar. 3-4 lin. 



Black, shining, slender. Palpi pale yellow. Antennae pubescent; 

 third joint tapering, longer than the first and the second ; fourth longer 

 than the third. Thorax hoary on each side. Wings nearly colourless ; 

 veins brown, tawny towards the base ; second longitudinal vein nearly 

 straight ; third and fourth almost parallel. Halteres white. Legs 

 yellow ; tips of the tarsi black ; middle femora very little thicker than 

 the other femora ; middle tibiae very slightly curved. 



Generally distributed. (E. S.) 



