June, 1908.] Guatemalan Hemiptera. 375 
end, median vein forked a little before the apex, the outer branch 
merged in the apical margin of the corium, the inner branch run¬ 
ning some distance into the membrane where it joins the inner 
(claval) vein, forming a loop emitting a vein from its apex; apical 
margin of corium extending from the median vein to the costal 
margin; apical angle of corium acute. Wings folded under the 
hemelytra in such a way that they scarcely reach the middle of 
the abdomen. Abdomen about as broad as the pronotum 
between the humeri, the dorsal side in the male a little shorter, 
in the female a little longer than the pronotum, venter in the 
male shorter, in the female longer than half the length of the 
mesosternum; the last segment of the connexivum tapering from 
the base to the pointed tip, in the female projecting backwards 
and reaching the middle of the first dorsal genital segment to the 
margin of which it is closely attached; the first five ventral seg¬ 
ments short, of equal length, the sixth ventral segment in the 
female as long as the three preceding segments together, in the 
male a little shorter, arcuately sinuate behind, more profoundly 
so in the female; genital segments symmetrical, two such seg¬ 
ments being visible in either sex from above and from beneath; 
first dorsal genital segment very much shorter in the male than 
in the female; first ventral genital segment entire in the male, 
in the female made up of two lobes contiguous along their whole 
length; apical genital segment in the male cleft in the middle when 
seen from the side, knob-like in the female. Legs slender, middle 
pair much'the longest and inserted immediately under and a little 
in front of the hind pair, their trochanters passing the apical 
margin of the hind acetabula by half their length. Fore femora 
reaching the last fourth of the mesosternum, scarcely incrassated, 
slightly curved at the base; tibiae considerably shorter than the 
femora; tarsi shorter than half the length of the tibiae, first joint 
a little variable in length, second joint three or four times longer 
than first. Middle femora longer than the mesosternum, a little 
thicker than the fore femora, tapering from the base to the middle; 
tibiae longer than the femora; tarsi a little longer than half the 
length of the tibiae, two-jointed, first joint longer than second. 
Hind femora longer and conspicuously thinner than the middle 
femora; tibiae a little longer than half the length of the femora 
and more than twice shorter than the middle tibiae; tarsi about 
thrice shorter than the tibiae, two-jointed, joints of equal length. 
Apterous form unknown. 
Allied to Trepobates but at once distinguished by the struc¬ 
ture of the head, antennae, corium and genital segments. The 
hemelytra seem to be exceedingly brittle in this insect. They 
are no doubt much longer than the abdomen but in all the six 
specimens before me the membrane is broken off near its basal 
margin making it impossible to give a complete description of its 
veins. 
