CERA.TOPOGON. 213 



broader than those of the male, their hairs darker and thicker. Abdo- 

 men broad. 

 (E.) 



11. tenuis, Winn. ! Linn. Ent. vi. 25. 11. pi. 4. f. 11 (1852). 

 Mas, nigro-cinereus, nigro-hirtus, antennarum plumis apice albidis, tho- 

 race subobscuro, alis albidis cinereo-hirtis, venis pallidis apud costam 

 fuscis, halteribus albis, petiolis nigricantibus, abdomine nigro-fusco, pe- 

 dibus nigris subnitidis, tarsis flavido-albis apice fuscescentibus. 



Male. Blackish-grey, clothed with black hairs. Head and palpi black. 

 Plumes of the antennae glistening -white towards the tips. Thorax 

 hardly shining. Wings whitish, with grey hairs ; veins pale, brown 

 towards the costa. Halteres blackish, with white knobs. Abdomen 

 blackish-brown, with some short white hairs amongst the long black 

 hairs on the back. Legs black, somewhat shining, clothed with black 

 hairs ; tibiae slightly incrassated ; tarsi yellowish-white, with more or 

 less brown tips. 



(E.?) 



12. divaricatns, Winn.! Linn. Ent. vi. 25. 12. pi. 4. f. 12 (1852). 

 Mas, ater, antennarum plumis apice albidis, thorace nitido nudo lato, 

 pectoris lateribus flavido-notatis, alis hyalinis subalbidis cinereo-pilosis, 

 venis pallidis apud costam fuscis, halteribus albis, abdomine nigro- 

 fusco cinereo-piloso, venire fulvo, pedibus pallide fuscescentibus, tarsis 

 subalbidis, articulis apice nigris. Long. --; alar. 1-i- lin. 



Male. Deep black. Plumes of the antennae glistening-white towards 

 the tips. Thorax broad, bare, shining. A little dingy yellowish tuft 

 on each side of the pectus before the wings. Wings hyaline, some- 

 what whitish, with grey hairs ; veins pale, brown towards the costa. 

 Halteres white. Abdomen blackish-brown, thinly covered with grey 

 hairs ; under side tawny. Legs pale brown ; tarsi more whitish. 

 (E.?) 



13. alacer, Winn.! Linn. Ent. vi. 25. 13.^>1. 4. f. 13 (1852). Mas, 

 ater, antennarum plumis apice albidis, thorace nitido pilis nigris, alis 

 hyalinis cano-pilosis, venis pallidis apud costam fuscescentibus, halte- 

 ribus sordide albis fusco-petiolatis, abdomine nigro-fusco, pilis longio- 

 ribus canis, pedibus pallidis subpiceis, tarsis pallidioribus. Long, f ; 

 alar. 1-^ lin. 



Male. Deep black. Plumes of the antennas glistening-white towards 

 the tips. Thorax clothed with black hairs, with a greyish tinge in some 

 aspects. Wings hyaline, whitish when seen on a dark surface, with 

 grey white-glistening hairs ; veins pale, distinct, brownish towards the 

 costa. Halteres brown, with dingy white knobs. Abdomen almost 

 blackish. -brown, with rather long grey white -glistening hairs. Legs 

 pale, somewhat piceous ; tarsi paler than the other parts. 

 (E.) 



14. murinus, Winn.! Linn. Ent. vi. 26. 14. pi. 4. f. 14 (1852). 



