178 CHIBONOMIDiE. 



verse veinlet brown. Halteres whitish. Abdomen pale green, pubes- 

 cent. Legs pale green, slightly pubescent ; joints of the tarsi with 

 bi'own tips. 



Eare. In the British Museum. (E.) 



111. lentulus, n. Mas et Foem. tedaceus, tJiorace vittis tribus 

 nigris, alis limpidis, veiiis halteribusque albis, illis apud costam testa- 

 ceis, abdomine nigro-viridi, pedibns fulvis. Long. 3-3^ ; alar. 5-6 lin. 



Male and Fern. Testaceous. Palpi and antennas black. Thorax with 

 three black stripes. Wings limpid ; costal, radial, and cubital veins 

 testaceous, the rest white. Halteres white. Abdomen greenish-black, 

 with whitish pubescence. Legs tawny, minutely pubescent. 



Not common. (E.) 



113. perpessus, n. Mas, niger, alis sublimpidis, venis halteri- 

 busque albidis, illis apud costam testaceis, pedibns fuscis, tarsis nigri- 

 cantibus. Long. 3|^ ; alar. 6 lin. 



Male. Black. Antennae with black plumes. Wings nearly limpid ; 

 costal, radial, and cubital veins pale testaceous, the rest whitish. Hal- 

 teres whitish. Legs brown, slender ; tarsi blackish. 



Rare. (E.) 



113. dolens, n. Mas, niger, alis albidis, venis albidis apud costam 

 testaceis, venula transversa halteribusque fuscis, pedibns fuscis subpilosis, 

 tibiis tarsisque anticis pilosissirais. Long. 4 ; alar. 6 lin. 



Male. Black. Antennae with black plumes. Wings whitish ; costal, 

 radial, and cubital veins testaceous, the rest whitish ; discal transverse 

 veinlet dark brown. Halteres brown. Abdomen long, very hairy. 

 Legs brown, long, slender, slightly hairy ; fore tihice and fore tarsi very 

 hairy. 



Rare. In the British Museum. (E.) 



114. moerens, C. D. B. M. i. 18 (1848). Mas, niger, valde ro- 

 bustus et pilosus, alis albidis basi nigricantibus, venis albis apud costam 

 albidis, venula transversa pallide fusca, halteribus fuscis, pedibns ferrii- 

 giiieis jiHosissimis. Long. 4 ; alar. 6 lin. 



Male. Black, very stout, very hairy. Antenna) with black plumes. 

 Wings whitish, blackish at the base ; costal, radial, and cubital veins 

 whitish, the rest white ; discal transverse veinlet pale brown. Halteres 

 brown. Legs ferruginous, very hairy. 



Rare. In the British Museum. (E.) 



115. irritus, n. Mas, niger, alis sublimpidis, venis albidis, halte- 

 ribus albis, pedibns fuscis. Long. 1|; alar. 2 lin. 



Male. Black. Antennae with black plumes. Wings almost limpid ; 

 veins whitish. Halteres white, fjcgs brown, slender. 

 Rare. (E.) 



, 116. variabilis? Sti^g. Dipt. Dan. 571. 44 (1840); Zcii.—geni- 

 culatus? Meig. Mas et Fmn. niger, thorace sordide testaceo vittis tribus 



