Descriptions of New or Little-known Ortlioptera. 421 



robust, clothed with long rigid bristles, and have inwardly seven saw- 

 like teeth, and a spine-like process at tip ; the sub-genital lamina is 

 nearly truncate and the styles short, somewhat thick at base, and 

 somewhat cylindrical towards the tip ; in the ? the cerci end in a 

 distinct spinous process, they are long, simple, clothed with long hairs, 

 and grooved in the middle of the outer part ; the ovipositor is the 

 length of prouotum and abdomen taken together, somewhat straight 

 but slightly recurved, the inferior valvulae are covered by the tip of 

 the upper. 



Length of body 8i-9| mm.; of pronotum 2-2^ mm. g ; of cerci 

 2-i 2| mm. ? ; of ovipositor 8-8J mni. ; of hind femur 11-1 1^ mm.; 

 of hind tibiae 13-13^ mm. 



Hab. Cape Town. Discovered in a series of deep chasms under the 

 ground, entrance to which is gained by a small aperture in the side of 

 a kopje, over the Wynberg Reservoir on the slopes of Table Mountain ; 

 alt. 2200 ft. The chambers have pools of water on the floors; the 

 walls are damp ; and perfect darkness prevails (F. Werts ; R. Marloth ; 

 K. H. Barnard. 7 <$ <$ ; 3 ? ? .) 



GEN. ONOSANDRUS, Stal. 

 Bih. Svensk. Akad. iv (5), 1878, p. 51. 



ONOSANDRUS MEDIOCRIS, n. sp. 



J . Vertex and upper side black with a metallic tinge, outer upper 

 part of hind femora fuscous, genae, clypeus and labrum, legs and 

 antennae flavescent. Anterior tibiae with one long, nearly median 

 spine on the inner part of the upper side in addition to the apical ; 

 spines of the intermediate tibiae are of normal disposition and 

 number, i. e. three to four ; those of the hind legs number eleven and 

 nine respectively, and the inferior margin of the strongly developed 

 hind femora are closely denticulate from the middle to the knee. 



Differs in size from O.fasciatus, Stal, in which the lower part of the 

 hind femora are also denticulate, and in colouring, the upper part being 

 coucolorous. 



Length of body 20 mm. ; of pronotum 4^ mm. ; of hind femora 

 19 mm.; of hind tibiae 16 mm. 



Hob. No record of locality or of donor, but probably from the 

 Knysiia (Cape Province). 



ONOSANDRIDUS, u. gen. 



I propose to include under a new genus such spesies of Mimneritii 

 that have in nearly all respects the habitus and characteristics of Ono- 



