ASILUS. 51 



Brown. Head hoary, covered with pale tawny down, thickly clothed 

 beneath with yellowish-white hairs ; a fringe of black bristles behind 

 the eyes ; epistoma convex, beset with yellowish-white bristles, on each 

 side and above with fewer black bristles. Proboscis, palpi, and an- 

 tennae black ; first joint of the latter clothed with tawny hairs and 

 black bristles. Thorax with 3 indistinct cinereous stripes, clothed with 

 long black hairs, beset on each side with yellowisli-white bristles; 

 sutures and sides hoary. Wings colourless ; veins black, slightly 

 clouded, tawny at the base. Halteres tawny. Hind borders of the 

 abdominal segments beset with yellowish-white bristles. Legs black, 

 clothed with short ])ale tawny hairs, and with a few long black hairs, 

 armed with pale yellow spines ; tarsi armed with black spines. 



Not rare. (E.) 



2. rufibarbis, Mg. zw. ii. 311. 6 (1820). Cervinus, antennis 

 nigris, thorace fusco-quadrivittato, alls subcinereis, apicibus margini- 

 buscpie posticis obscurioribus, abdomine supra fusco segmentorum mar- 

 ginibus posticis cervinis, pedibus nigris. Long. 9^; alar. 16 lin. 



Pawn-colour. Head thinly clothed on the crown with black hairs, 

 thickly clothed beneath with pale yellow hairs ; a fringe of black 

 bristles behind the eyes ; epistoma convex, beset with black bristles 

 above, and more thickly with pale yellow bristles below. Proboscis, 

 palpi, and antennae black ; first and second joints of the latter clothed 

 with black hairs ; tips of the second joint and base of the third joint 

 tawny. Thorax thinly clothed with black hairs, beset with 4 rows of 

 black bristles, having 4 brown stripes, the inner pair partly united, the 

 outer pair short and interrupted. AVings pale grey, darker along the 

 hind borders and at the tips ; veins black, tawny towards the base and 

 along the fore border. Halteres tawny. Abdomen brown above, 

 clothed with short tawny hairs ; hind borders of the segments fawn- 

 colour, beset with pale yellow bristles ; tips black, shining. Legs 

 black, clothed with tawny haii's, armed with black spines ; a tawny 

 spine on each hind tibia. 



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



3. basalis, Lw. 1. e. iv. 16. 26. Var. ? Cervinus, antennis nigris, 

 thorace fusco cervino-suhti'ivittato, alis subfuscis hmpido ad discum 

 subvittatis, abdomine subcinereo cano-fasciato, apice pedibusque nigi-is. 

 Long. 6 ; alar. 11 lin. 



Fawn-colour. Head clothed beneath with white hairs, beset behind 

 with white and with a few black bristles ; epistoma prominent, beset 

 with white bristles, and towards the antennse with a few black bristles. 

 Antennae black; hrst and second joints beset with black bristles. 

 Thorax tliinly clothed with short black liairs, beset on each side and on 

 the hinder part with a few white and black bristles ; disc brown, excepting 

 3 indistinct stripes. Wings pale brown, colourless along the veins in 

 the disc. Halteres luteous. Abdomen grevish, clothed with short 



