180 CHIKONOMID^E. 



whitish. Halteres white. Abdomen long, slender. Legs blackish, 

 long, slender. 

 Bare. (E.) 



122. oblidens, n. Mas, ater, alls subdnereis, venis albidis apn/1 

 costam nigricantibus. Long. 2^ ; alar. 4 lin. 



Male. Deep black. Antennae with black plumes. Wings slightly 

 greyish; costal, radial, and cubital veins blackish, the rest whitish. 

 Legs rather long and slender. 



Rare. (E.) 



123. effusus, n. Mas at Fcem. niger, alts sublimpidis, venis albidis 

 apud costam testaceis, halteribus fuscis, abdomine mgro-fusco, pedibus 

 obscure testaceis. Long. 1-1 \; alar. 2 lin. 



Male and Fern. Slack. Wings nearly limpid; costal, radial and 

 cubital veins pale testaceous, the rest whitish. Halteres brown. Ab- 

 domen dark brown. Legs dull testaceous, pubescent. Male. Antennae 

 with brown plumes. 



Not rare. (E.) 



124. fuscipes, Meig. Zw. i. 49. 65 (1818); Mcq. ; Staeg. ; Ros. ; 

 Zett. Mas, niger, alls subcincreis pubescentibus, venis albidis, halteribus 

 albis, pedibus fuscescentibus. Long. 1 ; alar. 1^- lin. 



Male. Black. Antennae with black plumes. Wings slightly greyish, 

 pubescent ; veins whitish. Halteres white. Legs brorcnish. 

 Rare. In the British Museum. (E.) 



125. venosus? Meig. Zw. vi. 253. 105 (1830). Mas, niger, tho- 

 race vittis tribus testaceis, alis sublimpidis, venis halteribusque albidis, 

 illis apud costam nigricantibus, segmentorum abdominalium marg'uiibus 

 poslicis fuhis, pedibus sordide testaceis, femoribus tibiis et tarsorum 

 articulis apice nigris. Long. 2-3 ; alar. 4-4^ lin. 



Male. Black. Antennae with black plumes. Thorax testaceous on 

 each side, and with three very slender testaceous stripes. Wings nearly 

 limpid ; costal, radial, and cubital veins, and discal transverse veinlet 

 blackish, the other veins whitish. Halteres whitish. Abdomen with a 

 tawny band on the hind border of each segment, clothed with whitish 

 down. Legs dingy testaceous ; tips of the femora, of the tibiae, and of 

 the joints of the tarsi black. 



Not rare. (E.) 



126. incomptus, n. Mas, niger, validiusculus, thorace fulvo vittis 

 tribus latissimis nigris, alis subcincreis, venis nigricantibus, halteribus 

 albidis, segmentorum abdominalium marginibus posticis cinereis, pedibus 

 fulvis, tarsis nigris. Long. 2i ; alar. 4 lin. 



Male. Black, rather stout. Antennae with black plumes. Thorax 

 tawny above, with three very broad black dorsal stripes. Wings greyish ; 

 veins mostly blackish. Halteres dingy whitish. Abdomen pubescent, 

 with a grey band on the hind border of each segment. Legs tawny, rather 

 stout ; tarsi black. 



Xot common. (E.) 



