DIPTERA. 185 
ANTHRAX AMPLA, Fem. 
Cinerea, capite scutelloque fulvis, pectore cano, abdomine fusco basi ferru- 
gineo flavo-hirto, segmentorum marginibus posticis albo-hirtis, ventre 
Serrugineo, antennis nigris basi fulvis, pedibus fulvis, tibiis posticis 
tarsisque piceis, tarsis posticis nigris, alis subcinereis basi et ad costam 
fulvis. 
Head dark tawny, thickly clothed with white hairs, thinly clothed with 
black hairs about the eyelets and behind where it is gray: sucker and 
lancets black, the former much longer than the head, the latter long 
and slender with tawny tips: feelers black; first and second joints 
tawny adorned with a whitish covering, beset with black bristles; third 
conical, terminated by a bristle which is near twice the length of all 
the preceding part, it tapers in the early part of its course, is thence 
linear, and widens towards the tip where it terminates in a little spine: 
chest gray, clothed with hoary hairs, adorned on each side and in front 
with ferruginous hairs; seutcheon tawny ; a few red bristles on each 
side of the scutcheon: breast hoary, clothed with whitish hairs: abdo- 
men brown, shorter than the chest, not longer than broad, thinly clothed 
with black hairs; hind borders of the segments adorned with bands of whitish 
hairs ; base ferruginous, covered with a thick band of pale yellow hairs which 
form a tuft on each side ; underside ferruginous, clothed with pale down: 
legs dark tawny, adorned with a hoary tinge, beset with black bristles ; feet 
and hind shanks pitchy ; hind feet black: wings pale gray, tawny at the 
base and along the fore border ; cross-veins clouded with dark gray ; wing- 
ribs and veins tawny; poisers pitchy with tawny knobs. Length of the 
body 8 lines; of the wings 22 lines. 
West Australia. 
ANTHRAX PROCEDENS, Fem. 
Nigra, angusta, fulvo-hirta, thoracis lateribus posticis ferrugineis, pectore 
cano, abdominis lateribus albo nigroque fasciculatis, antennis nigris, 
pedibus fulvis, tarsis piceis, alis limpidis longis angustis basi et ad 
costam sinuato-fuscis. 
The stump on the hinder vein of the second marginal areolet is more 
than twice the length of the inner side of that angle; stump on the angle 
of the tip cross-yein rudimentary or none. Black, rather narrow: head 
wn 
