HORN EXPEDITION—ORTHOPTEUA. 
363 
Periplaneta obscUPa, Tepp. {l.c.^ 107). There are two male larvie of 
clitlerent ages from Palm Creek, and also a very young one, presumably belonging 
to the same species, from Reedy Creek. The specimens upon which the species 
was originally established came from the Northern Territory. 
Pepiplaneta pufa, Tepp. (/.^r., 101). One adult male from Oodnadatta, 
two female nymphs (?) from Palm Creek, and a larva of each sex from Dalhousie. 
PERlSPH.ERIDiE. 
LepidophOPa fupcata, Tepper xviii., p. 20). Of this remarkable 
species a single male was captured at Oodnadatta, being the second known to me. 
The first specimen, upon which genus and species were established, Avas brought by 
A. Zietz, Esq., F.L.S., from Lake Collabonna and described in a paper read before 
the Roy. Soc. 8. A., in Dec., 1894. The abdomen possesses the singular peculiarity 
that the upper angles of the tarsal segments overlap the ventral scale-like, a 
structure only existing among the Forficularia?, among Orthoptera, so far as I am 
aware of. 
Heterogamid,e. 
(?) Ataxigamia tatei, Tepp. {loc. cit., xvii., 123). Females, male nymph, 
and larvae. The genus and species were originally established upon some adult 
males (winged) obtained from Fowler’s Bay. The specimens brought back by the 
Expedition, on the contrary, consist all of wingless individuals, and, with one 
exception, of females, which are habitually apterous. There is therefore some 
doubt left whether the sexes are correctly mated, but as the general characters 
denote considerable affinity, I prefer to assign the specimens for the present as 
above. The following descriptions will therefore be supplementary to the 
previously-published ones :— 
Male nymph et larvce. —Reddish-brown above, testaceous beneath, also the 
legs and lateral margin ; larvie paler. Head free, antenme and palpi pale, vertex 
with a dark band absent in larvie and females. Pronotum hooded, rotundate, disk 
scabrous, with raised tubercles, an impressed short furrow on each side of the 
indistinct median line anteriorly, and two round black impressed dots in the middle, 
besides some other less distinct shallow impressions; hind margin slightly sinuate, 
angles acute. Mesonotum similar, a black impressed spot on each side near inser¬ 
tion of elytra ; hind margin tuberculate, very concave. Lobes of elytra distinctly 
discernible (not free), much produced, apex subrotundate. Metanotum similar, 
wing lobes veiy distinct, venation discernible. Abdominal segments with two 
