146 
J. W. Evans 
Note ~lt is possible that in spite of the differences in coloration and the 
shape of the head that exists between the two insects described below, they 
are not distinct species but the two sexes of a single species. 
Platyscopus badius sp. nov. (Genotype). 
(Plate L, figs. 24, 25.) 
Length 7 mm. Head chestnut-brov\'n, eyes red. Pronotum chestnut-brown 
partially suffused with dark brown. Sentelliim chestnut-brown. Tegmsn pale 
hyaline-brown, apically smoky-grey, veins pale brown. Thorax and Abdomen, 
ventral surface and legs, brown. Last abdominal segment narrowly produced 
Tuediaily, emarginate laterally. Ovipositor sheath spinose. Type ? from 
Dedari, 1 736. 
Platyscopus coloratus sp. nov. 
(Plate L, figs. 20, 27.) 
Length 5*5 mm. Head, ventral surface dark brown. Crown chestnut- 
brown with a medium black stripe extending from the base to within one- 
third of the apex and two small brown markings close to the eyes on each side; 
eyes red. Pronoimn chestnut-brown. Scntellum black. Tegmen hyaline- 
brown, the costal border colourless ; apex and \^oins dark brown. Thorax and 
Abdomen, ventral surface black. Type c? from Dedari, 1/36. 
EUSCELIDAE, 
Kntettix norrisP f]\'. and Thamnofettix argentata- L\'. are tlie only pre- 
viously dc^scribed representative's of this family recorded from \\'estt>rn Aus- 
tralia. Botii are described and hgure<l in Evans, 1939, a. In an ('arlior paper 
(Kv^ans, 1937, a) the genera Par(idorydium Kirk, and Deltodorydhim Kirk, were 
placed in tlio lOuscelidae, in the tribe Paradorydiini of the sub-family Eup(4i- 
cinae. Later (Kv^ans, 1939, b) the Kupelieinae were transferred to the 
Ledridae. Kurther study has led to the conclusion that the Paradorydiini 
were misplac<'d aud tliat they are a Luscelid tribe. Deltodorydium virnlis Ev\ 
is the only known WesP'rn Aiistralian T('prcsentativ’e of this tribe. 
OCCIPLANOCEPHALUS gen. nov. 
Tiu^ head is considerably wider than long, v^entrally it is almost hat, 
the antennal pits are shallow and the eyes large. The frontal sutures are 
almost parallel to each other ami to the internal margins of the eyes. They 
appear to extend posteriorly beyond the ocelli and the apices are directed 
towards the eyes on (‘ach side. The crown is m ide and consists almost entirely 
of the v^(‘rtex, the coronal suturt' is short and tlie ocelli though marginal are 
visible finm above'. The pronotnm narrows laterally. The tegmina are short 
and do not nearly reach to the apex of tlie abdomen ; their appendices continue 
round their apices to the costal margins. The hind tibiae have a strong arma- 
ture of spines. Each spim> of the row of strongest spines is mounted on an 
enlarged base and separated from its neighbour by three or four minute spines. 
The male genitalia hav'c wide flat sub-genital plates that narrow apically and 
narrowly producetl pygophores. 
