186 INSECTA SAUNDERSIANA. 
clothed in front with whitish hairs: peristoma tawny: chest clothed with 
pale tawny hairs, slightly ferruginous on each side behind the wings: breast 
hoary : abdomen clothed with pale tawny hairs, increasing in breadth from 
the base to the tip which is truncated, a little shorter and broader than the 
chest, adorned on each side with alternate patches of black and white 
hairs : legs tawny, rather long and slender, beset with short black bristles 
which are mostly on the shanks; feet pitchy with black tips: wings colour- 
less, long and narrow, dark brown mingled with dark tawny at the base and 
along four-fifths of the length of the fore border; this dark part is less than 
half the breadth of the wing, and grows narrower from the base to the tip by 
means of three successive large angles; wing-ribs and veins black ; scales 
pale tawny ; poisers pitchy, tawny towards the base. Length of the body 
44 lines; of the wings 13 lines. 
Columbia. 
ANTHRAX GNATA, Fem. 
Nigra, fulvo-hirta, thorace nigro-fusco lateribus argenteis, antennis nigris, 
pedibus fulvo-piceis, alis fuscis fulvo guttatis ad apices oblique lim- 
pidis. 
Black, clothed with pale tawny hairs: chest dark brown, silvery white 
along each side: abdomen slightly obconical, a little broader but not longer 
than the chest: legs pitchy, thinly clothed with black hairs and bristles; 
thighs and shanks adorned with a tawny tinge: wings colourless, dark 
brown on more than half the surface from the base with the exception of a 
few small dulltawny spots ; the outline of the brown part extends from four- 
fifths of the fore border to one-third of the hind border, and is nearly straight 
along most of its course, but angular towards the fore border ; wing-ribs and 
veins pitchy; poisers pale yellow. Length of the body 4 lines; of the 
wings 10 lines. 
ANTHRAX conerua, Mas. 
Nigra, capite argenteo-hirto, thoracis lateribus ferrugineo-hirtis, pectore 
cinereo, abdomine pilis ferrugineis basi nigris media argenteis fulvis- 
que apice ornato, ventre albo-piloso, antennis nigris, pedibus piceis, 
alis fuscis ad apices oblique limpidis. 
Black: head adorned with short silvery hairs: mouth pitchy: chest 
deep yelvet-like black, adorned on each side with bright ferruginous 
aoe 
