ME MBit AC ID'JB. 
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at the tips ; the dorsum has a small spinous tubercle followed bj a larger one 
over the tail; the pronotum extends to the apex of the abdomen, and has a sinuous 
edge; eyes large and hemispherical; legs ochreous or rufous; the second tibiae 
flattened and spatulate, the third rather less so ; tarsi very small; tegmina sienna- 
brown in colour, mottled, with a greyish or nearly white patch on the disc; the 
rest of the insect is umber brown, abdomen very dark. General character spinose, 
interspersed with small ochreous points or prickles. 
Size 5x4 mm. 
Habitat. —Luzon, Philippine Islands. 
Allied to P. cerviceps. 
PTERYGIA HORRIFICA, Westwood. 
(Plate XII. fig. 5.) 
Westw. (Oentrotus), Walk. l.c. p. 500. 
Small ; brown, with ferruginous tegmina and legs ; the suprahumerals are 
clubbed and notched at the apices; the whole insect more or less spinose, with the 
dorsum showing one large hump at the caudal end, and a smaller one between it and 
the suprahumeral horns. 
Size 5x5 mm. 
The Philippine Islands seem to share with South America in having this and 
several other species of this genus, originally thought to be peculiar or special to the 
New World. 
PTERYGIA CONCOLOR, n.s. 
(Plate XII. figs. 6, 6a.) 
Small; colour ochreous-brown; suprahumerals short, blunt, and not cleft; pronotum 
with two moderate-sized tubercles, one of which is dorsal; finely setose ; tegmina 
finely pilose, with two large ochreous patches on the disc, and smaller ones on the 
costa and the apex. 
Approximates to P. exalt at a (Walk.). 
Size 4x3 mm. 
Habitat. —Brazil (?). 
Hope Collection (Miers). 
PTERYGIA NOX, n.s. 
(Plate XII. figs. 8, 8a.) 
External appearance not unlike a Tropidocyta, but perhaps it more recalls 
Pterygia arietina. Viewed from the front, this insect shows two short horns con¬ 
vergent at the tips, but there are no white mealy patches on the tegmina and 
pronotum. The dorsum has two prominent rounded tubercles. The whole insect 
is jet black, finely spined, and stippled with dark depressions. 
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