184- 



ribusque albidis, illis apud costam fuscis, pedibus validiusculis. Long. 

 2; alar. 4 lin. 



Male. Slack, stout. Antennae with black plumes. Thorax shining. 

 Wings nearly limpid ; costal, radial, and cubital veins, and discal trans- 

 verse veinlel brown, the other veins ichitish. Halteres whitish. Abdomen 

 pubescent. Legs rather stout. 



Hare. (E.) 



143. novatus, n. Mas et Fcem. nigro-cinereis, alia subcinereis, venis 

 olbidis apud costam fuscescentibus, halteribus albis, pedibus obscure fuscis. 

 Long, li-2 ; alar. 2|-3| lin. 



Male and Fern. Cinereous-black. Wings very slightly greyish ; costal, 

 radial, and cubital veins pale brownish, the rest ichitish. Halteres white. 

 Legs dark brown, slender. Male. Antenna? with black plumes. 



Common. (E.) 



144. nigratus, n. Fcem. niger, alis sublimpidis, venis albidis apud 

 costam nigricantibus, halteribus pedibmque testaceis, femoribus tibiis tar- 

 sisque apice nigricantibus. Long. 1 ; alar. 2 lin. 



Fern. Black. Wings nearly limpid; costal, radial, and cubital veins 

 blackish, the rest ichitish. Halteres testaceous. Legs testaceous, slender ; 

 tips of the femora, of the tibiae, and of the tarsi blackish. 



Rare. (E.) 



145. impensus, n. abdominalis? Staeg. ; Zett. Fcem. niger, alis 

 albo-limpidis pubescentibus, venis halteribusque albis, abdomine rufescente, 

 pedibus testaceis validiusculis. Long. ^ ; alar. 1^ lin. 



Fern. Black. Wings limpid-white, pubescent ; veins and halteres white. 

 Abdomen reddish. Legs testaceous, rather short and stout. 

 Bare. In the British Museum. (E.) 



146. tibialis? Meig. Zw. i. 41. 47 (1818); Mcq. ; Gim. ; Zett. 

 Var. ? Mas, niger, thoracis lateribusftdvis, alis sublimpidis, venis halteri- 

 busque albidis, illis apud costam testaceis, segmentorum abdominnUum 

 marginibus posticis canis, pedibus fuscescentibus, tibiis albido-tmifasciatis. 

 Long. 2; alar. 3^ lin. 



Var. ? Male. Black. Antennae with brown plumes. Thorax tawny 

 on each side. Wings nearly limpid ; costal, radial, and cubital veins 

 testaceous, the rest ichitish. Halteres whitish. Abdomen with a hoary 

 band on each segment. Legs brownish ; a whitish band on each tibia. 



Rare. In the British Museum. (E.) 



147. nexilis, n. Mas, canus, thorace vittis tribus nigricantibus, 

 alis sublimpidis, venis albidis apud costam fuscescentibus, halteribus albis, 

 abdomine piceo, pedibus testacew, tibiis et tarsorum articulis apice ni- 

 gris. Long. 2 ; alar. 4 lin. 



Male. Hoary. Antennae with black plumes. Thorax with three 

 blackish stripes. Wings nearly limpid ; costal, radial, and cubital reins 

 pale brownish, the rest whitish. Halteres white. Abdomen piceous. 



