218 CHIKONOMID^;. 



costam fuscis, halteribus sordide flamdis, abdomine niyro-fusco fusco-pi- 

 loso, pedibus f err ugineis. Long, j-; alar. 1^ lin. 



Male. Black. Plumes of the antennae blackish-brown, glistening- 

 yellow towards the tips. Thorax .shining, with yellowish hairs, which 

 appear yellowish-grey in some aspects. Wings hyaline, bare ; veins pale, 

 brown towards the costa. Halteres dingy yellow, almost brown. Abdo- 

 men blackish-brown, dull, clothed with brown hairs, which have a glis- 

 tening-whitish tinge towards the tip. Legs ferruginous. 



Not rare. (E.) 



27. mhmtus, Meig. Zw. vi. 263. 49 (1830) ; Stseg.; Zett.; Winn.! 

 Linn. Ent. vi. pi. 5. f. 27. Mas, nigro-fuscus, palpis Jlavis, antennis 

 fuscis plumis pallidis, thorace nitido Jlavido-piloso, alis hyalinis nudis 

 apice vix pubescentibus, venis pallidis apud costam fuscis, halteribus 

 lacteis, abdomine fusco obscuro cano-piloso, pedibus albo-Jiavis. Long. \ ; 

 alar. 1 lin. 



Male. Blackish-brown. Palpi yellow. Antennas pale brown, clothed 

 with pale hairs ; joints from the first to the eighth compact, cylindrical, 

 the five following elliptical. Thorax shining, clothed with yellowish hairs. 

 Wings hyaline, bare, except a few hairs in front of the tips ; veins brown 

 towards the costa, the rest pale. Halteres milk-white. Abdomen broicn, 

 dull, with hoary hairs. Legs whitish-yellow. 



Not rare. (E.) 



28. sericatus, Winn.! Linn. Ent. vi. 34. 28. pi. 5. f. 28 (1852). 

 Niger, nigro-hirtus, antennarum plumis apice albidis, alis hyalinis cine- 

 reo-hirtis, venis pallidis apud costam fuscis, halteribus nigro- fuscis, 

 pedibus piceis, tarsis sordide albidi's. Long, f ; alar, -| lin. 



Male. Black, clothed with black hairs. Plumes of the antennas 

 glistening-white towards the tips. Wings hyaline, whitish when seen 

 on a dark surface, clothed with grey white-glistening hairs ; veins pale, 

 brown towards the costa. Halteres blackish-brown. Legs more or 

 less dark piceous ; tarsi dingy whitish. 

 (E.?) 



29. amcenus, Winn.! Linn. Ent. vi. 35. 29. pi. 5. f. 29 (1852). 

 Mas, piceus, antennarum plumis fuscis albo-nitentibus, palpis fuscis, alis 

 hyalinis, venis albis, halteribus niveis, abdominis incisuris albidis, pedibus 

 albidis, femorum et tibiarum apicibus extremis pallide fuscis. Long. -| ; 

 alar. 1 lin. 



Male. Piceous. Palpi brown. Plumes of the antennas brown, glis- 

 tening snowy-white, llwrax with glistening -white down. Wings hya- 

 line ; veins pale, appearing white in a shaded aspect. Halteres snowy- 

 white. Sutures of the abdominal segments whitish. Legs whitish ; ex- 

 treme tips of the femora and of the tidies pale brown. 



Bare. (E.) 



30. varius, Winn.! Linn. Ent. vi. 35. 30. pi. 5. f. 30 (1852). 

 Mas et Foem. fuscus, palpis Jlavis, thorace nigro-hirto disco cinereo, hal- 



