672 LIST OF DIPTERA. 



full twice the length of the first ; third joint tapering from near the 

 base to the tip, a little shorter than the second ; fourth and fifth 

 joints very short; sixth joint tapering from the base to the tip, 

 about twice the length of the fourth and of the fifth joints: abdo- 

 men slender and linear for about one-third of its length from 

 the first segment, which is broader, spindle-shaped thence to the 

 tip, adorned with a ferruginous band at the tip of its stalk, and 

 with a band of hoary down on the hind border of each segment : legs 

 ferruginous ; hips, thighs, and tips of the feet pitchy : claws tawny, 

 with black tips ; foot-cushions pale yellow : wings colourless, brown, 

 with a tawny streak along the fore borders; wing-ribs and veins 

 pitchy ; poisers tawny. Length of the body 6 lines ; of the wings 

 9 lines. 



Conops flavifrons, n. s. Nigra, fronteflavo, antennis nigris articulo 

 1° apice ferrugineo, pedibus nigris, femoribus rufo fasciatis, tibiis 

 tarsisque piceis, femoribus posticis basi fulvis, alls nigro-fuscis 

 margine postico subfuscis. 



Body black : front of the head yellow : eyes black, bordered 

 with red; facets on the fore part of the crown larger than those 

 elsewhere : mouth black, with a ferruginous band : feelers black ; 

 first joint ferruginous at the tip ; second joint pubescent, more than 

 twice v the length of the first; third and following joints short, and 

 forming a club, which is pitchy, ferruginous at the base, and not 

 half the length of the second joint: chest clothed with very short 

 black hairs, very slightly covered with gray bloom : abdomen clothed 

 like the chest and more than twice its length, linear for full one- 

 third of its length, spindle-shaped from thence to the tip : legs 

 black ; hips and trochanters pitchy, covered with white silky down ; 

 an indistinct dark red band on each thigh ; hind thighs tawny 

 at the base ; shanks and feet pitchy : wings very dark brown or 

 almost black along the fore border on the whole length and for half 

 the breadth, somewhat paler at the tips; hind borders slightly 

 clouded with brown, which is darkest along the sides of the veins ; 

 wing-ribs and veins black; poisers tawny, with black tips. Length 

 of the body 9 lines ; of the wings 14 lines. 

 a. Para. Presented by J. P. George Smith, Esq. 



Conops inhabilis, n. s. Nigra, fronte fulvo, kumeris fulvo macula- 

 tis, abdominis segmentorum marginibus posticis canis, antennis 

 ferrugineis, articulo 1° subtus fulvo, pedibus fulvis, femoribus 

 supra piceis, alis limpidis ad costam fuscis . 



Body black: head with a ferruginous mark on the crown, 

 bright tawny in front: eyes pitchy, dark red on the sides of the 



