384 LIST OF DIPTERA. 



Laphria Alebas, n. s., fem. Nigra, crassa, flavo-hirta, pectore ab- 

 domineque piceis, antennis ferrugineis basi piceis, pedibus fer- 

 rugineis, alis albis. 



Body black, broad, thick, and most thickly covered with short 

 close hairs : head much narrower than the chest, clothed with pale 

 yellowish brown hairs above, in front and beneath, and with pale 

 tawny hairs behind : eyes bronze-black, flat on the fore part, where 

 the facets are much larger, and the line between the two regions is 

 distinct : lip black, very stout, clothed towards the tip with short 

 yellow hairs ; tongue black, covered beneath with yellow down : 

 feelers ferruginous ; first joint piceous, nearly linear; second joint 

 cup-shaped, beset with a few black bristles, hardly more than half 

 the length of the first ; third joint very long spindle-shaped, very 

 much more than twice the length of the first and of the second 

 joints : chest clothed with pale yellow hairs : breast piceous : abdo- 

 men piceous, elliptical, broader and longer than the chest, clothed 

 above with pale yellowish brown hairs : legs ferruginous, thickly 

 clothed with tawny hairs ; thighs paler at the base ; shanks be- 

 neath at their tips and under-side of feet covered with shining 

 pale yellow bloom ; hind thighs thick, not armed with teeth ; hind 

 shanks curved; fore shanks armed on the middle of the under- 

 side with about four stout short teeth ; claws black, ferruginous to- 

 wards the base ; foot-cushions yellow ; shanks, and more especially 

 the feet, beset with black bristles : wings white ; wing-ribs, veins 

 and poisers yellow. Length of the body 10 lines ; of the wings 20 

 lines. 



Laphkia Tidius, n. s. JEneo-atra, lata, pilis fiavis vestita, pectore 

 piceo,abdomine apice nudo subtus piceo, antennis nigris, pedibus 

 piceis, alis subfuscis marginibus posticis sublimpidis. 



Body bronze-black, broad, thick, clothed with yellow hairs : 

 head much narrower than the chest, clothed with shining yellow 

 hairs, which are thickest on the front and on the clypeus ; crown 

 thinly clothed with dark tawny hairs : eyes bronze-black ; fore part 

 flat, composed of larger facets, distinct from the other part : lip 

 short, stout, its tip clothed with short ferruginous hairs : feelers 

 black ; first joint nearly linear, clothed towards the base with long 

 yellow hairs ; second joint cup-shaped, beset with a few black bris- 

 tles, hardly less than half the length of the first ; third joint slightly 

 increasing in breadth from the base till near the tip, which is coni- 

 cal, about twice the length of the first and the second joints : chest 

 thickly clothed with bright yellow hairs ; breast piceous, with a few 

 dull yellow hairs ; scutcheon beset with black bristles : abdomen 



