192 HEMIPTERA-HETEROPTERA. 
rather prominent ; the posterior lobe moderately dilated, with indications of one or two oblique ridges on 
each side of the broad median depression. Scutellum with the apical process compressed and cristate, and 
also tuberculate. Femora moderately asperate. 
Length 83, breadth 24-3 millim. (¢ 9.) 
Hab. Nicaraeva, Chontales (Junson); Panama, Volcan de Chiriqui (Champion). 
Nine specimens. Easily distinguishable by its comparatively large size and dark 
coloration, the strongly quadri-tuberculate anterior lobe of the pronotum, the cristate 
scutellar process, and the common black patch on the inner portion of the elytra towards 
the base. Viewed in profile, the compressed scutellar process appears to be arcuately 
dilated upwards. <A specimen from Chiriqui is figured. 
2. Nalata nigrescens, n. sp. . (Tab. XI. figg. 24, 24a, 2.) 
Very like NV. quadrituberculata, but differing from it as follows:—The corium and clavus uniformly nigro- 
fuscous or black, the membrane black; the four tubercles on the disc of the anterior lobe of the 
pronotum much less prominent, and the smaller tubercles inconspicuous; the scutellar process broadly 
ochreous at the tip, rather stout, and not cristate ; the antenns: more elongate ; the eyes larger and a little 
more prominent; the anterior tibia with a row of six stouter spines interspersed amongst the fine ones. 
Length 83-10, breadth 24-33 millim. (¢ 9.) 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
One pair. At first sight, this insect appears to be nothing but a darker form of 
N. quadrituberculata, with which, however, it cannot be associated. ‘The two tubercles 
on each side of the disc of the anterior lobe of the pronotum, formed by the oblique 
sulcature of the eallosittes, are much less prominent than in that species, the inner 
one being almost obsolete, whereas both of them are very prominent in JN. quadri- 
tuberculata. The spines on the anterior tibie are also coarser, and the scutellar 
process differently shaped. 
8. Nalata irrorata, n. sp. (Tab. XI. fig. 26, 3.) 
Broad, sordid ochreous, slightly mottled with fuscous, the sides of the head behind the eyes, the anterior lobe 
of the pronotum in the middle behind, and the flattened portion of the scutellum fuscous; the corium 
dilute fuscous, mottled with whitish, the apex broadly fuscous; the membrane fuscous, mottled with 
ochreous, the two inner cells each with a blackish mark at the base; the connexivum broadly banded 
with fuscous or nigro-fuscous ; the antenne with joints 1 and 2 ochreous, 2 annulated with fuscous, 
3 and 4 fuscous; the scutellum with the margins and apical process pale; the body beneath much mottled 
with fuscous; the femora with a single blackish annulus near the base; the anterior tibie triannulated, 
and the other tibia quadri-annulated, with black or fuscous; the rostrum ochreous, annulated with 
fuscous; the antenne, rostrum, legs, and body set with long, scattered, semierect bristly hairs, the 
body and corium also sparsely clothed with short, stout, decumbent, curled, ochreous hairs, Head 
with moderately prominent tubercles above, the ocelli very small ; antennz moderately long, joint 1 short, 
about half the length of 2, 3 and 4 very slender, 3 as long as 1 and 2 united, 2 and 4 subequal in length. 
Pronotum with the anterior lobe strongly gibbous, the callosity on each side of the median groove 
suleate and divided into two indefinite prominences, the scattered tubercles small and not prominent ; 
the posterior lobe strongly dilated at the sides posteriorly, depressed in the middle, without definite ridges 
on the disc, their position indicated in front by small tubercles, the lateral margins asperate. Scutellum 
with the margins raised, the apical process rather stout. Femora strongly asperate. 
Length 7, breadth 22-24 millim. (¢ @.) 
