147 
with two to four external and four to five internal spinelets, 
being variable on the left and right of the same individual. Hind 
tibize above scarcely flattened and unarmed, or the spinelets almost 
imperceptible with a lens. Ovipositor very slender, nearly 
straight, gradually pointed, shorter in the nymph than the adult, 
and, being shortly recurved, is carried over the body. One adult 
female and two female nymphs. 
Female—Adult. Nymphs. 
Length of body ... eyes 3) suite 28 mm. 
Length of pronotum ge gO ers igs 
Length of elytra ... beep AGE es «OO 102 
Length of hindfemora ... 16 “ Ts 
Length of ovipositor ele chee Loto. -< 
Habitat.—Palmerston, Northern Territory of South Australia 
(presented by the Hon. S. J. Magarey, M.B.) (Coll. S.A. Museum). 
GRYLLACRIS FERROTESTACEA, spec. NOV. 
Size rather large. Ferruginous testaceous, concolorous. Head 
from front view oval. Face rugose; labrum subcircular, raised 
basal part small. Clypeus transverse, anterior and posterior 
margins straight. Mandibles and eyes black. Ocelliform spot of 
body-colour, elongate, acute above. Fastigium of vertex highly 
arched, twice as wide as first antennal joint, apex more or less 
emarginate, unmarked. Antenne about two and a half times as 
long as the body, and of the colour of the latter entirely. 
Pronotum with the disk somewhat saddle-shaped, flattened, and 
with a depressed medial line; fore and hind margins convex, 
former sometimes with a short black line, latter with a black 
band ; lobes slightly longer than high, margins straight, angles 
rounded. Elytra and wings long, concolorous ; veins ferruginous, 
veinlets paler, membrane pellucid. Hind femora stout, below 
with four spinelets on each margin usually. Hind tibie above 
with four external and five internal spinelets. | Ovipositor veiy 
slender, considerably incurved, finely hirsute: apex gradually 
acuminate, not acute; inferior keels short, enclosing a small 
circular depressed area. Female. 
Length of body a! ree ... 27-34 mm. 
Length of pronotum aut nee De ees 
Length of elytra __.... me ae. BO} ft 
Length of hind femora oe en hei” 
Length of ovipositor sit .. 44-45 « 
Habitat.—Northern Territory of South Australia (presented by 
Dr. S. J. Magarey) (Coll. S.A. Museum). 
This species resembles G. Jutescens in general aspect, but the 
colour and various other distinctions render it advisable to 
separate the two for the present, until the discovery of the other 
sex will decide the question. 
