CERATOPOGON. 225 



Wings limpid, bare, pubescent towards the tips ; Veins distinct, more 

 or less brownish, those towards the costa with incrassated tips. Legs 

 paler than the body ; one of the ungues about twice the length of the 

 other. 



Not rare. (E.) 



47. vitiosus, Winn. ! Linn. Ent. vi. 49. 47. pi. 6. f. 47 (1852). 

 Mas et Fcem. obscure nigro-cinereus, palpis fuscis, antennis nigris, alls 



jlavescentibus aut albidis, venis fuscis, halteribus albis, pedibus albidis, 

 yenubus posticis nigris ; Mas, antennarum plumis apice albidis. Long. 

 |-; alar. f lin. 



Male and Fern. Dull blackish-grey. Palpi brown. Antenna black. 

 Wings appearing yellowish in tlie light, whitish when seen on a dark 

 surface; veins brown. Halteres white. Legs whitish; hind knees 

 black. Male. Plumes of the antennae black, glistening-whitish towards 

 the tips. Fern. Joints of the antennae from the first to the third cylin- 

 drical ; from the fifth to the eighth more oval ; from the ninth to the 

 thirteenth elongated, elliptical. 



(E.?) 



48. lacteipennis, Zett. I. L. 820.4 (1840); Winn.! Linn. Ent. 

 vi. pi. 6. f. 48. Mas et Fcem. niger, antennis nigro-fuscis, thorace vix 

 nitido, alls lacteis, venis albidis, halterum capitiilis lacteis, femoribus ti- 

 biisque piceis aut fuscescentibus apice obscurioribus, tarsis albidis articu- 

 lis apice nigris; Mas, autennarum plumis nigro-fuscis apice albidis. 

 Long, f ; alar. 1 lin. 



Male and Fern. Black. Antenna blackish-brown. Thorax hardly 

 shining. Things milk-white ; veins whitish. Halteres with milk-white 

 knobs. Legs piceous, or brownish ; tips of the femora and of the tibia 

 darker ; tarsi whitish, their joints with black tips ; hind tarsi occasionally 

 piceous. Male. Plumes of the antennae blackish-brown, with glistening- 

 white tips. Fern. Joints of the antennae from the first to the third 

 cylindrical ; from the fifth to the eighth more oval ; from the ninth to 

 the thirteenth elongated, elliptical. 



Not common. (E.) 



49. nitidus, Mcq. H. N. D. i. 64. 2 (1834) ; Meig. ; Stseg. ; Zett. ; 

 Winn. ! Linn. Ent. vi. pi. 7. f. 49. Mas et Fcem.. niger, nitidus, facie, 

 proboscide palpisque nigro-fuscis, thorace atro, alis limpidis sublanceo- 

 latis, venis pallidis apud costam fuscescentibus, halteribus nigris petiolis 

 flavescentibus, pedibus fulvis nigro-variis ; Mas, antennarum plumis 

 apice albidis, unguibus parvis; Fcem. unguibus longissimis. Long. 

 H-lf ; alar. 2|- 3 lin. 



Male and Fein. Black, shining. Face, proboscis, and palpi blackish- 

 brown. Thorax deep black. Wings limpid, almost lanceolate ; veins 

 pale, brownish towards the costa. Halteres with yellowish petioles. 

 Abdomen with the first and second segments more or less semitrans- 

 parent, tawny. Legs tawny, more or less varied with black ; first and 

 second joints of the tarsi whitish with black tips ; third, fourth and fifth 



voi. iv. 2 G 



