HORN EXPEDITION—ORTIIOPTERA. 
377 
Length of body - - - - - 16 inm. 
„ elytra - - - - - 33 „ 
,, pronotum - - - - 3’3 ,, 
,, hind femora - - - - 11 ,, 
„ ovipositor - - - - 14 „ 
Locality .—Storm Creek. 
Gpyllacpis lutescens, Tepper (Trans, Roy. Soc. S.A., 1892, p. 148). Two 
females. 
Locality .—Alice Springs and Stevenson River. Common in Central Australia. 
Eonius atPOfPOns, Tepper (Trans Roy. Soc. S.A., 1892, p. 164). A nearly 
full-grown female and a half-grown male nymph. As the male sex has been 
unknown to me hitherto, a short description is appended. 
Male (young).—Similar to female; dark bands of body wider and more intense 
in colour ; knee joints reddish-piceous. Spines of hind femora small. Supra-anal 
lamina cucullate, smooth, slightly incised in the middle, a small tubercle on each 
side of incision. Cerci lanceolate, acute, villous. Subgenital lamina narrow, 
slightly tapering, apex rounded, incised; lateral appendages present as small 
rotundate scales. (Elytra and wings rudimentary). 
Length of body - - - - - 27'5 mm. 
,, pronotum - - - - 4 ,, 
,, hind femora - - - - 10 ,, 
Locality .—Oodnadatta ( ? ), Finke Gorge (J'). One male and female. 
Stenopelmatid^. 
Penthoplophora driffieldi, Tepper {Joe. cit., p. 176). One male and 
female from different localities. The former having been unknown to me hitherto, 
a description is added. 
Male. —Similar, but much smaller than female. Fastigium with a short dark 
medial line in front, joined to a sinuate transverse one, with a vertical prolongation 
at a right angle, beneath which a faint triangular dark spot; antenme more than 
twice the length of the body ; palpi (in both sexes) ffat, apex shortly dilated. 
Femora long, ciliate. Hind tibiie with 6—9 long internal and 2—4 very small 
external spines (in addition to the terminal ones noted and accidentally omitted). 
