DIPTERA. 199 
Bombyttius vipuus, Fem. 
Alter, nigro-hirtus, thoracis lateribus fulvo-pilosis, antennis nigris, pedibus 
Sulvis, tarsis piceis, alis cinereis costa basali fuscis. 
Black : head clothed above with black hairs, and partly in front with 
tawny hairs: mouth about half the length of the body: chest clothed with 
black hairs, having a fringe of pale tawny hairs on each side: abdomen 
slightly obconical, a little broader and much shorter than the chest, beset on 
each side and at the tip with black bristles : legs tawny, armed with black 
bristles and spines ; feet pitchy : wings dark gray, dark brown beneath the 
fore border, across half the breadth and along half the length from the 
base; wing-ribs and veins pitchy; poisers tawny with yellow knobs. 
Length of the body 3 lines; of the wings 8 lines. 
Van Diemen’s Land. 
Group D.—C. D. B. M. 276. 
Characters of Group A. The little cross-vein somewhat before two- 
thirds of the length of the discoidal areolet. 
Bombytius RECEDENS, Fem. 
Niger, fulvo-hirtus, antennis nigris, pedibus fulvis, femoribus basi nigris, 
alis sublimpidis vilta ad costam fulva fusco marginata. 
Black, rather narrow, thickly clothed with pale tawny hairs; some 
black hairs in front of the head : mouth about half the length of the body : 
abdomen obconical, a little longer than the chest, with some black hairs at 
the tip: legs tawny, beset with a few black bristles; thighs black towards 
the base ; feet pitchy towards the tips: wings nearly colourless, with a short 
fringe of black bristles on the base of the fore border; a broad tawny stripe 
occupies the base and ewtends thence beneath the fore border for more than 
three-fourths of the length ; it is bordered in the disk with brown which 
has a darker hue on the cross-veins ; wing-ribs tawny ; veins black, partly 
tawny at the base and along the fore border; poisers tawny with pitchy 
knobs. Length of the body 33 lines; of the wings 9 lines. 
