146 
Habitat.—Morgan, on the Lower Murray River, South Aus- 
tralia (Hvans) (Coll. SA. Museum). 
VAR. NIGRIFONS. 
Size smaller than the typical form, which it resembles in aspect 
and in the markings of the head, but differing by a broad deep 
black band across the face, almost obliterating all other markings, 
except the small, nearly circular ocelliform spot. The size is very 
variable, also the number of spinelets of the hind femora, which 
vary from 3-5 external and 1-4 internal ones, the hind tibiz ex- 
hibit three on each upper margin with all the specimens before 
me. The antenne are about four times the length of the body. 
M. M. (nymph) F. F. F. (nymph) 
Length of body .. 23mm. 20 mm. 30mm. 21 mm. 30mm. 
Length of pronotum... 4 ‘ ela a eed oo oe Meee 
Length of elytra ... 39 95: F* 34 SS 30 | re GIG 
Length of hind femora 15 “ 12 ‘ 15. “ 16:3. S\eal aaa 
Length of ovipositor.... — _ 29 a0, <5 leu 
Habitat.—Ardrossan, Yorke’s Pen. (M. & F., Cadd) ; vicinity 
of Adelaide (M. nymph, F. and F. nymph), South Australia 
(various contributions) (Coll. S.A. Museum). 
The species with its variety is one of the best characterised 
among those examined on account of the constant markings of the 
head. Should the variety be deemed to deserve raising into higher 
rank, its varietal name might become the specific. 
GRYLLACRIS LONGICORNIS, spec. nov. 
Size large. Rusty testaceous, concolorous. Head from front 
view oblong-oval. Face rugose, with impressed dots, shining. 
Labrum (adults) oval-elongate. Clypeus subhexagonal, lateral 
sides shortest; above the latter @ short, conspicuous ridge on each 
side, parallel, directed towards the space between the eyes and 
antenne. Antenne very long and slender, exceeding four times 
the length of body; first joint slender. Fastigium of vertex 
rounded, shiningly smooth, about four times the width of first 
antennal joint, apex slightly emarginate, apical and lateral margins 
bordered narrowly with a pale line revurving upon itself, pale 
medial line continued to hind murgin. Space between these 
marginal lines, occiput and sides of head minutely and irregularly 
marbled by fine pale lines, area between them darker than the 
body-colour. Eyes elongate, black. Pronotum unmarked, anterior 
and posterior margins straight; lobes much longer than high, 
inferior margin straight, parallel; humeral sinus very small. 
Elytra and wings concolorous, pellucid ; veins and veinlets of 
body-colour. Wings with transverse veinlets, bordered very 
narrowly with dark testaceous. Fore and middle legs long and 
slender; hind legs much incrassated at base; hind femora below 
