CERATOPOOON. 225 



Wings limpid, bare, pul^escent 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 Tirnu. oh>icnre n'ujro-cinereus, palpis fiiscis, antetinis ni(jris, alls 



fiavescentihus aid alhidis, venis fuscis, halteribus albis, pedibus albidis, 

 gentdjHS postlcis nUjriH ; Mas, antennarum plumis apice albidis. Long. 

 ~; alar. ~ lin. 



Male and Fern. Dull blackish -(jnnj. Palpi brown. Jnlenncc black. 

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

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

 black. Male. Plumes of the antenna? black, glistening-whitish towards 

 the tips. Tern. Joints of the antenna; 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. tiiger, antennis nigro-fuscis, thorace vix 

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

 biisque piceis aut fuscescentibus apice obscurioribus, tarsis albidis articn- 

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

 Long. \ ; alar. 1 lin. 



Male and Feni. Black. Antennae blackish-broicn. Thorax hardly 

 shining. Wings tnilk-white ; veins whitish. Halteres v;itli milk-white 

 knobs. Legs piceous, or broicnish ; tips of the femora and of the tibice 

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

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

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

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

 the thirteenth elongated, elliptical. 



Not common. (E.) 



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

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

 proboscide palpisque uigro-fuscis, thorace atro, alis limpidis sublancco- 

 latis, venis pallidis apnd costam fuscescentilnis, halteribus nigris petiolis 

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

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

 li-l|; alar. 24-3 lin. 



Male and Fern. 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- 

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

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



vol. IV. 2 G 



