ZOOLOGY OF FERYANDO YOROYHA. 
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29. Polistes Eidleyi, n. sp. 
Long. corp. 15-16 millim. ; exp. al. 26-20 millim. 
Worker. Varied with ferruginous red, dark brown, black, and 
yellow ; clothed with very fine silky pubescence. Head red, 
the vertex darker, the face and orbits lighter, base of the head 
black ; antennae black in the middle above. Thorax black, the 
prothorax and mesothorax red above, the hinder edge of the 
prothorax paler, and the front edge narrowly bordered with 
yellow ; the edges and central line of the mesothorax more or 
less bordered with black above; on the pleura, beneath the 
fore wings, is a conspicuous yellow spot ; scutellum and post- 
scutellum edged in front witli yellow, the band on the former 
hardly complete in the middle, and the space behind it more or 
less red ; metathorax finely and transversely striated, a deep 
longitudinal channel in the middle, more strongly striated, and 
edged with a yellow stripe on each side ; on each side, above the 
base of the hind coxae, is another yellow spot. Abdomen dark 
brown, finely pubescent, shading into black at the base, and 
generally more or less red at the extremity. Legs red, coxae 
and femora black, knees red or yellow, hind tibiae more or less 
black in the middle. Wings smoky hyaline, strongly tinged with 
ferruginous along the costa of the fore wings ; tegulae ferru- 
ginous. 
Var. a. Pace, head beneath, pectus, and coxae beneath yellow; 
femora striped beneath with yellow ; first two segments of the 
abdomen with a small yellow spot on each side above, and a 
larger one near the base of the first segment beneath. 
Very nearly allied to I J . instab ills, Sauss., from Mexico; but 
this is a redder insect, with the segments of the abdomen always 
more or less bordered with yellow. 
This insect is called here “ Marimboudo ,” and is very common. 
It makes its nest ou the underside of an overhanging rock or 
eaves of a house, or on the branch of a tree. I have seen a 
Casliew-nut tree containing an immense number of nests in 
various stages of construction. The nest consists of a single 
comb of cells of a triangular or oval outline, and attached by a 
pedicel at the narrow end ; a large one is about four inches in 
length, and three across in the broadest part. The cells are 
about three quarters of an inch deep, and a quarter of an inch 
across. The insect stings slightly, but only when much irritated. 
