360 LIST OF DIPTERA. 



piceous, their knobs pale tawny and very large. Length of the body 

 2 J lines ; of the wings 7 lines. 



a. Van Dieman's Land. Presented by the Kev. T. Ewing. 







Group XX. 



Dasypogon Aphidnus, n. s., mas. Fulvus, capite albo, pectore et 

 metathorace cinereis, abdomine ferrugineo basi cinereo, antennis 

 pedibusque fulvis, alls limpidis. 



Body tawny : head as broad as the chest, covered with whitish 

 down, clothed thinly above and thickly beneath with pale yellow 

 hairs, beset with yellow bristles along the upper hind borders of the 

 eyes ; clypeus armed with a tuft of pale yellow bristles : eyes black ; 

 fore part nearly flat, with facets very little larger than those else- 

 where on the eye : lip and palpi black, the latter clothed with tawny 

 hairs : first and second joints of the feelers tawny, clothed with taw- 

 ny hairs ; second joint cup-shaped, shorter than the first : chest and 

 breast very thinly clothed with short yellow hairs ; scutcheon and 

 hind chest gray : abdomen ferruginous, slightly tapering from 

 the base to the tip, much longer than the chest, and almost equal to 

 it in breadth at the base, clothed with yellow hairs, which are most 

 thick on each side towards the base and at the tip ; first and second 

 segments gray, short ; third and following segments longer, but suc- 

 cessively darker along the fore borders, decreasing in length to the 

 seventh, which is very short, its appendages are large, and piceous 

 at the tip: legs tawny, clothed with white hairs, and beset with 

 some short white bristles ; hips gray ; feet piceous, tawny beneath ; 

 claws black ; foot-cushions whitish : wings colourless ; fourth areo- 

 let on the hind border from the base of the wing very open ; wing- 

 ribs ferruginous ; veins black, ferruginous at the base ; poisers pale 

 yellow. Length of the body 3 lines ; of the wings 5 lines. 



Group XXI. 



Dasypogon Luscinius, n. s., fem. Niger, brevis, latus, abdomine 

 rufo basi nigro, antennis pedibusque nigris, tibiis et tarsis posti- 

 cis genubusque ferrugineis, alis limpidis. 



Body black, short, broad, thick : head narrower than the chest, 

 clothed above, behind, and more thickly beneath, with white hairs ; 

 clypeus thickly beset with white bristles : eyes dark red ; fore part 

 flat, almost black, quite distinct from the other part and composed 





