CHIKONOMU3. 175 



tribus nigris, alis subcinereis, venis albidis apud costam fuscis, halteribus 

 testaceis, abdomine ferrugineo, pedibus fulvis, tibiis posterioribus femo- 

 ribus et tarsorum posteriorum articulis apice, necnon tibiis tarsisque 

 anticis totis nigris ; Mas, abdomine vitta dorsali nigra. Long. 2^-3 ; 

 alar. 4-5 lin. 



Black, shining. Thorax ferruginous, with three black stripes. Wings 

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

 Halteres testaceous. Abdomen ferruginous. Legs tawny ; fore tibiae, 

 fore tarsi, tips of the femora, of the posterior tibiae, and of the joints 

 of the posterior tarsi, black. Male. Antennas with blackish plumes. 

 Abdomen with a black dorsal stripe. 



Rare. In the British Museum. (E.) 



98. albipennis, Meig. Zw. vi. 248. 87 (1830); Stseg.; Ros.; 

 Zett. Fcem. piceus, thorace testaceo vittis tribus latis piceis, alis lim- 

 pidis, venis albidis apud costam testaceis, halteribus testaceis, pedibus 

 testaceis, tibiis tarsisque apice fuscescentibus. Long. 3^ ; alar. 6 lin. 



Fern. Piceous. Thorax testaceous, with three broad piceous stripes, 

 which are almost confluent. Wings limpid ; costal, radial, and cubital 

 veins, and discal transverse veinlet, pale testaceous } the other veins 

 whitish. Halteres testaceous. Legs testaceous, long, slender ; tips of 

 the tibiae and of the tarsi brownish. 



Not common. (E.) 



99. stramineipes ? Zett. I. L. 810. 4 (1840). Fcem. var.? tes- 

 taceus, thorace vittis tribus nigris, alis albo-limpidis, venis halteribusque 

 albidis, abdomine fusco-testaceo, segmentorum marginibus posticis albidis, 

 pedibus testaceis, femoribus tibiis et tarsorum articulis apice fuscis. 

 Long. 3 ; alar. 6 lin. 



Fern. Var. ? Testaceous. Thorax with three black stripes. Wings 

 limpid-white ; veins and halteres whitish. Abdomen brownish-testa- 

 ceous ; hind borders of the segments whitish. Legs testaceous ; tips of 

 the femora, of the tibiae, and of the joints of the tarsi, brown. 



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



100. incoactus, n. Mas, testaceus, thorace vittis tribus nigris, alis 

 sublimpidis, venis halteribusque albidis, his apud costam testaceis, pe- 

 dibus pallide testaceis, tibiis tarsisque apice obscurioribus. Long. 2 ; 

 alar. 3 lin. 



Male. Dark testaceous. Thorax with three black stripes. Metathorax 

 blackish. Wings almost limpid ; costal, radial, and cubital veins, and 

 discal transverse veinlet, testaceous, the other veins whitish. Halteres 

 whitish. Legs pale testaceous ; tips of the tibiae and of the tarsi 

 darker. Male. Antennas with brown plumes. 



Not common. (E.) 



101. conversus, n. Mas et Fcem. pallide testaceus, thorace vittis 

 tribus fuscis, alis limpidis, venis halteribusque albidis, his apud costam 



