146 HEMIPTERA-HOMOPTERA. 
Hab. Guatemana, Quiché Mountains 9000 feet, San Gerénimo 3000 feet (Champion). 
The form of the dorsum will at once separate this species from either of the pre- — 
ceding ; if viewed from the side the type specimen bears a strong resemblance to the 
head of a satyr, with ears, nose, mouth, and long pointed beard. 
The specimen from San Gerénimo is figured. 
Subfam. CENTROTINA. 
The members of this subfamily may be known by the presence of a distinct and 
more or less uncovered scutellum. Certain of the genera, as before observed (anted, 
p- 2), are destitute of the process of the pronotum which is the chief characteristic of 
the Membracide, and the real position of one or two is therefore somewhat uncertain. 
The Central-American genera may be distinguished as follows :— 
I. Pronotum with a longer or shorter posterior process, usually starting 
from the base, but occasionally from the front. 
1. Posterior process of the pronotum not or scarcely reaching beyond 
the scutellum, or at most not beyond the middle of the body. 
A. Pronotum without sharp lateral horns, usually simple, but in 
one or two instances with broad, porrect, auriculate processes. 
a. Posterior process of the pronotum lying close along the scu- 
tellum, or at least touching the tegmina, if viewed from the 
side. 
a*, Pronotum without raised lobate or circular carine, and not 
produced in front; tegmina, in part at least, clearer 
byaline. 
at. Wings with four apical areas. 
at. Tegmina not pubescent; clavus with the veins in- 
distinct. 2. 6. 2. 2. 1 1. ww ew wee ee) Centriculus, gen. nov. 
bt. Tegmina pubescent; clavus with two very strong and 
distinct veins. . . . 2... . 6... « . «~Amblycentrus, gen. nov. 
b+. Wings with three apical areas; size very small . . . Brachybelus, Stal. 
6*, Pronotum either with raised circular or lobate carine on 
its upper surface, or else bluntly produced in front, very 
rarely furnished with porrect auriculate processes ; tegmina 
more or less opaque and dull throughout. 
at. Pronotum elevated and crowned with strong carinz, 
which are more or less circular and confluent, or form 
blunt lobes ; tegmina with three discoidal areas . . . Phaulocentrus,gen. nov. 
6+. Pronotum with only the ordinary central carine, bluntly 
produced in front; tegmina with two discoidal areas. Glischrocentrus, gen.nov. 
6. Posterior process of the pronotum situated at a considerable 
distance above the scutellum, short, slender, and almost 
straight . » . . . Lsehnocentrus, Stal. 
