372 LIST OF DIPTEEA. 



ferruginous, long spindle-shaped, as broad as the chest and full twice 

 its length, piceous on the sides and black on the borders of each 

 segment, thinly clothed with short tawny hairs, and adorned on 

 each side with thick clusters of long tawny hairs ; under-side black ; 

 first and second segments short ; third and following segments long, 

 but successively decreasing in length : legs ferruginous, clothed 

 with short black hairs, and armed with black spines ; a black stripe 

 on each thigh ; claws black, ferruginous at the base ; foot-cushions 

 tawny ; middle shanks slightly curved, their tips armed with a very 

 stout tubercle which is provided with two teeth : wings tawny ; wing- 

 ribs aud veins ferruginous ; poisers tawny. Length of the body 17 

 lines ; of the wings 32 lines. 



a. Hong-Kong, China. Presented by J. C. Bowring, Esq. 



Group III. 



Laphria rufibarbis, Fabr. Syst. Anil. 157, 4. Wied. Dipt Exot. i. 

 233, 2. Auss. Zweif. i. 500, 3. 



a. -? 



b. Congo. 



Laphria Ufens, n. s., mas. Nigra, pilis fulvis nigrisque vestita, 

 abdomine purpureo, subtus piceo, apice nigro, antennis nigris 

 apice piceis, pedibus fulvis, alis fuscis. 



Head and chest black, slightly shining : head a little narrower 

 than the chest, clothed with bright tawny hairs, which are very thick 

 on the front and on the clypeus ,* sides of the crown and hind bor- 

 ders of the eyes beset with black bristles ; eyes bronze ; fore part 

 flat, composed of large facets, clearly distinguishable from the other 

 part : tongue black, longer than the lip, clothed beneath with tawny 

 down : lip black, not much longer than the head, ferruginous at the 

 base, crowned with yellow hairs at the tip : first and second joints 

 of the feelers ferruginous; first joint linear, clothed with ferruginous 

 hairs ; second joint clothed with black bristles, not half the length 

 of the first; third joint piceous, spindle-shaped, very much broader 

 than the first and the second joints and nearly twice their length : 

 chest and breast clothed with black hairs: chest with a slight 

 brassy tinge, beset on each side and behind with black bristles : 

 breast slightly covered with dark tawny down : abdomen purple, 

 shining, clothed with very short black hairs and on each side with 

 longer black hairs, slightly convex, piceous beneath, ferruginous at 

 the tip, rather narrower than the chest and not near twice its length ; 

 first segment very short; second and third segments of equal length; 



