53 
PLATE LXIII. 
DESCRIPTIONS OF SOME ORTHOPTEROUS INSECTS BELONGING 
TO THE SECTION SALTATORIA. 
—>—_ 
PROSCOPIA OCCIDENTALIS. Westw. 
(Plate 63, fig. 1.) 
P. fulva, nigro fuscoque varia, rugoso-punctata, capite ante oculos conico, prothorace capitis 
longitudine margine antico dilatato, metathorace valde tumido. Long. corp. unc. 13. ¢, 
unc. 2. 9. 
Habitat. Valparaiso, Chili. In Mus. Hope, and Mus. Britt. 
Tus curious species is more robust than the generality of the 
insects of this singular genus. The head of the male has the sides 
rather curved and rugose, but in the female they are straight, 
forming with the part in front of the eyes an elongated cone; in 
the latter sex it is more rugose than in the male. The antennez of 
both sexes are 9-jointed *: they are slightly thickened in the 
middle, the tip being slenderest ; they are inserted in the under- 
side of the head between the front part of the eyes. The prothorax 
is narrower than the head, its narrowest part being before the 
place of insertion of the fore-feet ; it is transversely rugose, and nas 
the hinder portion nearly quadrate. The meso- and meta-thorax are 
swollen into a rounded hump, much broader than the rest of the 
body in the male, the abdomen in that sex being narrowed. The 
specimens before me have, however, been taken out of spirits, and 
are shrunk in the base of the latter part, so that I cannot speak with 
certainty on its form, or as to the shape of the meso- and meta-thorax 
in the female. The feet are comparatively robust, and the ungues 
are very much dilated at the base, being furnished with an append- 
age almost as large as the pulvilli; the posterior femora are striated. 
I do not perceive in this species the difference in the number of the 
abdominal segments of the opposite sexes pointed out by M. 
Brullé; on the contrary, in both I find the same typical struc- 
ture, namely, seven basal segments of equal size, both on the 
dorsal and ventral surface, followed by two very short ares, cut off 
obliquely at the sides on the dorsal surface, representing the Sth 
and 9th dorsal segments, whilst the 8th ventral arc is dilated into 
rotundato antennis gracillimis, prothorace longissimo (long. unc. 12) angusto lateribus serrulatis; 
tegminibus et alis abdomen haud tegentibus, illis pallidis griseo et fusco parum variis nubila 
fusca versus basin, venisque nigro strigatis; alis hyalinis, costa maculisque nubilaque versus 
basin brunneis; cercis analibus latis foliaceis, pedibus 4 posticis brevibus femoribus fere ad 
apicem 3-foliatis tibiisque ante medium supra parum foliatis. Long. corp. unc. 42. Habitat 
in India orientali. In Mus. Ashmol. Oxon. et D. Hope. 
* Drs. Klug and Burmeister described the antenne of the males of Proscopiaas 6-, and those 
of the females as 7-jointed. M. Brullé describes the antenne of both sexes as $-jointed. 
Hist. Nat, d. Ius. Orth. et Hem. p. 212. 
