ZYGOPS. 31 
in front, feebly bisinuate at the base ; densely, minutely punctate. Elytra oblong, very little wider than 
the prothorax, flattened on the disc, subtruncate at the apex ; finely punctate-striate, the interstices flat, 
densely punctulate, 1 obsoletely granulate. Ventral segment 1 shallowly depressed along the middle in 
the g. Legs rather short ; posterior femora sharply bidentate, the others unidentate. 
Length 51-54, breadth 2,4,-21 millim. (¢ 9.) 
Hab. Nicaragua, Chontales (Belt).—Braziu (Mus. Brit.). 
Four specimens from Nicaragua and one from Brazil, agreeing perfectly inter se *. 
The dense, uniform, whitish vestiture of the under surface, the comparatively short 
third joint of the funiculus, and the strongly bidentate posterior femora, separate 
4. trivittata from the allied Central-American forms, Z sobrina excepted. From 
Z. leucogaster, Desbr., the present species may be known by the larger cinereous 
patches on the elytra, the sharply unidentate anterior femora, and the unicolorous 
vestiture of the under surface +. 
16. Zygops sobrina. (Z. minuta, Tab. II. figg. 26, 2; 26 a, hind leg.) 
3. Zygops sobrinus, Gyll. in Schonh. Gen. Cure. iv. p. 622°. 
Zygops minuta (Jekel), Desbr. Bull. Soc. Ent. Fr. 1890, p. exxvii”. 
Very like Z. trivittata, but with the vestiture of the upper surface cinereous, fulvous, and black intermixed, 
the cinereous scales sometimes predominating, these latter condensed into an interrupted submarginal 
vitta or several spots on the prothorax and various small spots on the elytra, the black scales on the 
elytra clustered into a small spot on each side of the scutellum, an irregular patch near the suture at 
about the middle, and a few small scattered spots; the vestiture of the under surface dense and wholly 
white, that of the legs also white, the posterior femora with a broad blackish or brown patch at the 
apex above. The prothorax a little less parallel at the sides; the anterior and intermediate femora 
unidentate, the posterior pair sharply bidentate, the inner tooth long, the outer one short and triangular ; 
the first ventral segment broadly depressed down the middle in the ¢. 
Length 4-5, breadth 13-24, millim. (¢ 9.) 
Hab. Mexico, Toxpam, Juquila (Sallé); Panama, Tolé (Champion).—Sovutu AMERICA, 
Cayenne *, Amazons 2, Brazil}. 
Six specimens, all but one from Mexico, differing from the type of Z sobrinus in 
having a distinct black spot on each side of the scutellum and a more deeply excavate 
first ventral segment in the male. This insect is apparently the Z. minuta of Jekel, 
to judge from a Cayenne example thus named in the Pascoe collection at the British 
Museum ; Desbrochers, however, in his brief diagnosis ?, says nothing about the black 
spot on either side of the scutellum (conspicuous in the paler individuals), nor does 
he mention the dark patch at the apex of the posterior femora. The third joint of 
the funiculus is short, as in Z. trivittata. The two teeth on the posterior femora are 
sharp. ‘The vestiture of the under surface is uniformly white. 
* In the British Museum there is a female specimen (without hind legs) of a nearly allied form 
from “ Mexico,” with a longer and more slender rostrum, longer antenne, with a longer club, and spotted 
metasternal side-pieces. There are others like it from Brazil, unnamed, in the F ry collection. 
+ The type (@ ) of Z. leucogaster has three large, sharply-defined, blackish-brown patches along the sides of 
the body beneath, the anterior femora obsoletely bidentate, &c. 
