162 
` DESCRIPTIONS OF SOME NEW SPECIES OF ORTHOPTERA 
FROM NORTH-WESTERN SOUTH AUSTRALIA.—- No. 1. 
By 7. 0. O. TEPPER, F.L.S., F.S.Sc. 
[Read June 7, 1904.] 
Рілте XXXII. 
The species described form part of a small collection made 
by Mr. Herb. Basedow, as one of the members of an explor- 
ing expedition under the command of Mr. på Ar Wels: 
This part of the country had been rarely traversed, and no 
insects had been collected there previously. The expedition 
left Adelaide in March, 1903, and returned in the following 
November. 
Order, ORTHOPTERA. 
Family, BLATTARLÆ. 
PERIPLANETA BASEDOWI, sp. nov. Plate xxxii. (three 
femaies in good condition). 
Ochraceous, shining, size large. 
Head with impressed nunute dots; a round pale spot at 
the base of the antenne and separate from them and the 
eyes; face with faint, dark spots in transverse rows. An- 
tennæ brownish, very slender, as long (or nearly so) as the 
body. Pronotum transverse, elliptical, with subangular, 
subsemilunate, brownish impressions. Meso.- and  meta- 
notum paler marked; scutellum elongate-triangular, pro- 
miscuous. Elytra as long as or longer than the wings, deep 
black, shining; anal vein and transverse veinlet very fine, 
pale. Wings much longer than the body, anterior area and 
the veins of the posterior deep black; transverse veinlets 
pale, membrane between them greyish. Legs shorter, but 
stouter than those of P. americana; concave surface (under 
the femora) of the coxe with small raised granula; femoral 
spines few and slender; middle and hind femora with about 
six strong spines in eacb row; tarsi short, glabrous. Abdo: 
men ovate, compressed, thin, rugulose, with a submarginal 
row of small, dark spots; hind margins of segments above and 
beneath broadly darker; posterior angles of penultimate seg- 
ment alone produced ; supra-anal lamina subrotundate, «le- 
pressed ; scarcely twice ав long ав the lamina; subgenital 
lamina emarginate, very short and slender. 
Length of body, 25-28 mm. 
Length of pronotum, 8 mm. 
Length of elytra, 30-33 mm. 
Length of wings, 25-27 mm. 
Width of pronotum, 11-12 mm. 
