ZYGOPS. 23 
a’, All the femora bidentate ; prothorax trivittate, the elytra varie- 
gate; under surface spotted with brown along the sides, the ‘ 
scales narrow ; posterior femora fusco-annulate near the middle. maculipes, Desbr. 
e*. Posterior femora bi-, the other femora uni-, dentate ; posterior 
femora fusco-maculate at the apex above. 
g°. Vestiture coarse, variegate above, white beneath, a blackish spot 
on the metathoracic episterna excepted ; outer tooth of poste- 
rior femora narrow, minute, and arising from the larger one. cataleuca, sp. n. 
h’. Vestiture much finer, that of the under surface wholly white ; 
outer tooth of posterior femora small, triangular, separated 
from the larger one. 
e*. Prothorax trivittate; elytra variegate. . . . . . . . Grivittata, sp. n. 
f*. Prothorax interruptedly trivittate; elytra with a spot on 
each side of the scutellum at the base, and another near 
the middle of the suture, black . . . . . . . . . sobrina, Gyll. 
1. Zygops rufitorquis, sp.n. (Tab. II. figg. 11, lla, 2.) 
Elongate-ovate, narrow, concave above, black, the antenne and the dorsal portion of the femora obscure 
ferruginous, the vestiture close and fine; the head (the narrow intraocular space and the base of the 
rostrum excepted, which are white), a band round the apex of the prothorax, and the pygidium carmine- 
red, the prothorax also encircled across the middle by a narrow white and a broader black band, the 
latter sending off two branches to the base, the intervening spaces cinereous; the elytra with three 
transverse black fascize—one below the base, one beyond the middle, and one near the apex, the second 
extending obliquely forwards near the suture,—and for the rest clothed with cinereous and fulvous 
scales; the under surface white, the sides of the meso- and metasternum maculated with fulvous and 
black, the abdomen with two transverse black fasciz# on each side——one at about the middle and the other 
close to the apex; the legs cinereous, the dorsal surface of the femora partly fulvous. Eyes narrowly 
separated; rostrum rather stout, moderately long, arcuate, broadly bisulcate and unicarinate at the base; 
joint 2 of the funiculus one-half longer than 3. Prothorax transverse, gradually narrowing forwards and 
slightly narrowed at the base, the base itself feebly bisinuate; densely, minutely punctate. Elytra 
oblong, not wider than the prothorax, obtuse at the apex, hollowed on the disc below the base; very 
finely punctate-striate, the interstices densely punctulate, flat, 1 granulate towards the base and apex. 
Posterior legs very elongate, the others moderately long ; anterior and intermediate femora uni-, the poste- 
rior femora bi-, dentate, the outer tooth on the latter small and distant from the longer one; posterior 
tibiee curved, rather broad, very sharply mucronate at the inner apical angle in both sexes. Abdomen 
with the second ventral segment, and the apex of the first, depressed down the middle in the ¢. 
Length 7-74, breadth 25—2.%, millim. (¢ 2.) 
Hab. Nicaragua, Chontales (Belé: 9 ).—Souta America, Cayenne and Brazil 
(Mus. Brit.: 3 2). 
Seven specimens. In this extraordinary insect the head (except between the eyes), 
a band extending round the apex of the prothorax, and the pygidium are of a brilliant 
carmine-red colour ; the posterior femora are longer than the elytra; and the posterior 
tibia (as in Z. maculiventris) are sharply mucronate at the inner apical angle *. 
Z. scenica, Gyll., is somewhat similarly coloured. 
* In an unnamed closely allied Brazilian form in the British Museum the posterior tibie of the ¢ are 
broadly dilated. 
