On Orthoptera from the River OgovS. 257 



tlie body, separated from the rest of the gill by a long 

 distance. Only the inner gill is present. Anteriorly in the 

 umbonal region, and closely associated with the gill poste- 

 riorly, is a prominent organ of unknown function. Tiie 

 sexual duct is mainly of mesodermal origin. 



XL. — A List of the Orthoptera, Hymenoptera, and Hemi- 



jjtera collected by Miss Kingsley on the River Ogove, loith 



Descriptions of some 7iew Genera and Species. By W. F. 



KiKBY, F.L.S., F.E.S., &c., Assistant in Zoological 



Department, British Museum (Natural History). 



[Plate XII.] 



The collection formed by Miss Kingsley, though small, 

 contained several species of considerable interest, in addition 

 to the novelties ; and hence I have thought it worth while to 

 prepare a complete list. Eight species in all are here 

 described as new, for two of which it has been necessary to 

 establish new genera. It is, however, to be regretted that 

 in most cases only single specimens were received, and several 

 of them were immature, or the number of new species might 

 have been larger. 



Order ORTHOPTERA. 



Family Blattidae. 



Subfamily Panchlorinm 



Teichomera, gen. nov. 



Female. — Apterous ; front of head rounded, projecting 

 beyond the prothorax ; face hardly oblique ; antennee thick- 

 ened at base and tapering to tips ; prothorax moderately 

 arched, the hinder angles rounded off, those of the meso- and 

 metathorax less rounded and more produced backwards; 

 tibige strongly spined above, but femora with no spines, but 

 only clothed with fine hair; abdomen very broad, supra-anal 

 plate triangularly emarginate at the extremity to nearly half 

 its length ; cerci very broad, pointed at the end, and a little 

 shorter than the supra-anal lamina. 



The unarmed femora place this genus in the Panchlorinse, 

 but in shape it resembles the females of some of the Blattinas. 

 The male is probably winged. 



