or 
HEMIPTERA-HETEROPTERA. 38 
NICUESA, gen. nov. (To follow the genus Acroleucus, p. 189.) 
Head short, deflexed, eyes very prominent and inserted at base; ocelli wide apart ; antenne with the basal 
joint short and incrassated, second and third joints slender, fourth somewhat thickened. Pronotum with 
the disk sculptured, irregularly carinate, the posterior margin. distinctly sinuate, the anterior margin 
slightly concavely sinuate, the lateral angles rounded. Scutellum triangularly carinate at a short distance 
from apex. Femora unarmed. 
The peculiar structure of the pronotum at once distinguishes this genus. 
1. Nicuesa speciosus, n. sp. (Tab. XXXIV. fig. 7.) 
Black ; pronotum and prosternum red; lateral margins of the corium stramineous; apical margins of the 
membrane narrowly greyish. Antenne moderately pilose, the second and fourth joints subequal in 
length. Pronotum reticulately carinate, forming two distinct cells near base. 
Long. 6-7 millim. 
Hab. Panama, Bugaba (Champion). 
NYSIUS (p. 190). 
2. Nysius (?) monticola, n. sp. (Tab. XXXIV. fig. 8.) 
Head and pronotum ochraceous, thickly punctured with fuscous ; lateral margins of the head, continued on inner 
side of eyes to base, black; antennee blackish, in one specimen with the second joint (excluding apex) a 
little paler ; pronotum with the anterior area blackish; scutellum black, with its extreme apex ochraceous ; 
corium pale ochraceous, inwardly pale fuscous, with a lateral submarginal series of small brown spots, 
the apical margin black, broken with ochraceous; membrane pale hyaline shaded with brownish and 
showing the dark abdomen beneath. Body beneath black ; legs ochraceous, the femora (excluding apices) 
and the tarsi castaneous. The head, pronotum, and scutellum are coarsely punctate ; the antennz have 
the second joint longer than the third, which is also shorter than the fourth. 
Long. 34-4 millim. 
Hab. Guatemata, Volcan de Agua 8000 to 10,500 feet (Champion). 
Two specimens have been received of this species, which differs from the typical forms 
of the genus by having the fourth joint of the antenne a little longer than the third. 
3. Nysius (?) ementitus, n. sp. (Tab. XXXIV. fig. 9.) 
Pale ochraceous; eyes, apical joint of antenne, inner margins of eyes, anterior broken fascia to pronotum, 
scutellum, and femora (excluding apices) castaneous or blackish. Scutellum with an anterior fascia and 
the apex ochraceous ; apical margin of the corium narrowly blackish. Membrane pale hyaline, with an 
apical pale fuscous spot, and showing the dark abdomen beneath. The head, pronotum, und scutellum are 
coarsely punctate. The second joint of the antenne is very slightly longer than the third, which is about 
subequal in length to the fourth. 
Long. 4 millim. 
Hab. GuaTEMALA, Quezaltenango, Cerro Zunil, Duefias, Aceituno (Champion). 
In some specimens (probably discoloured) the colour above is pale fuscous in place 
of pale ochraceous. The species differs from the typical forms of the genus by having 
the pronotum broader and less gibbous, with the lateral margins more oblique. We 
have received many examples. 
BIOL. CENTR.-AMER., Rhynch., March 1893. 49 
