70 
MEMBRA Cl DAE. 
marked P. sat anas of the B.M. Collection ; thickest at their apices, and slightly cleft; 
dorsum with three tubercles slightly spinose; the central tubercle the largest; tegmina 
reddish-brown and unspotted ; tibiae greyish-fuscous. 
Size 6x5 mm. 
Habitat. —Panama, Bugaba, Caldera; 1200 feet elevation. 
This insect is not unlike P, exaltata of Walk. 
PTERYGIA HISPID A, Fairm. 
(Plate XI. fig. 3.) 
Fairm. l.c. pp. 265-7. 
Brown, covered more or less with a greyish coat; suprahumerals truncated. 
Pronotum prolonged into three elevations, the first of which is placed as a small 
point at the base of the humeral processes. 
Size 5 mm. 
Hope Coll.: Westwood. 
Habitat. —Colombia, Colorado, Celebes (Gory). 
PTERYGIA POSTICA, <J, n.s. 
(Plate XI. figs. 5, 5a.) 
Small; metopidium convex, with two rather short suprahumeral processes, flat, 
curved, notched at their tips, and spinous ; the pronotum rises into a small spinous 
hump, and then is carried backwards at an angle, where a larger protuberance is 
developed, the surface of which is reticulated like that of a small fir-cone ; this part 
of the pronotum rises clear from the dorsum, as is often seen in Centrotus ; abdomen 
cut into rings, and ending with an obtuse apex ; tegmina obscure brown, with a 
faint neuration ; wings hyaline ; tibiae flattened, but not markedly so. The female 
is larger, and has orange spots on the abdomen. 
Sizes respectively 4x5 and 5x5 mm. 
PTERYGIA POSTICA, n.s. ? (?) 
(Plate XI. figs. 4, 4a.) 
Body furnished with numerous small yellowish spinules ; pronotum black, with 
two erect suprahumeral processes, bluntly truncated at the tips ; the dorsum spinous, 
with a large rounded posterior hump, which is broadly honeycombed on the surface, 
and rises almost over the region of the tail; abdomen black, with obscure yellow 
