ZOOLOGY or FERNANDO NORONHA. 
535 
G-enus CEoella, n. gen. 
Affinities doubtful ; nearest to Bargilis in the structure of 
the legs, but more nearly approaching Elimcea in neuration. 
Vertex slightly convex, shaped nearly like an equilateral tri- 
angle when viewed from above, the fastigium projecting about as 
far as the scapes of the antennae, when the latter are recurved. 
Eyes large, round, prominent. Antennae slender, filiform, at least 
as long as the tegmina. Pronotum above flat, oblong, slightly nar- 
rowed in front and rounded behind, excised laterally at the base 
of the wings. Tegmina rather narrow, especially at the tips, but 
hardly pointed ; shorter than the wings, the drums of the male 
triangular, vitreous, nearly alike on both tegmina. Eront legs 
moderately stout, unarmed ; the tibiae much swollen at the base 
to receive the linear foramina, which are well marked on both 
sides. Tarsi of all the legs similar, of nearly equal size, and about 
as long as broad, the second joint lobate, the last very slender, 
and .nearly as long as the two preceding joints together. Middle 
tibiae with a few very short and small spines towards the extremity. 
Hind legs long and slender, the basal half of the femora mode- 
rately thickened, furrowed on the side, and carinated below ; 
tibiae with a double row of short and slender spines, and with two 
small spines at the tip. Cerci of the male nearly as long as the 
short abdomen, with long terminal forks, the longest slender and 
almost sickle-shaped at the tip ; subgenital laminae short, concave 
at the extremity. Ovipositor nearly as long as the abdomen, 
moderately broad, strongly compressed, turned upwards, and 
pointed at the tip. 
16. CEcella furcifera, n. sp. 
Exp. tegm. 38 millim.; exp. ail. 42 millim. 
Head, thorax, tegmina, tips and veins of wings, and greater 
part of legs grass-green ; antennae and tibiae, abdomen and appen- 
dages yellowish, a yellowish line on each side of the pronotum 
above ; wings hyaline. 
Hab. Pernambuco and Fernando Noronha. In all the speci- 
mens from the latter locality the green colour has more or less 
faded to yellowish brown. When fresh this insect is bright 
green. It w r as common on Main Island, and especially on Eat 
Island. 
