17. ORTHOPTERA. 

 1. Rorinatoptera 



by 

 MALCOLM BURR. 



With 1 plate. 



The coUection of Dermatoiitera made by Dr. Yngve Sjöstedt in Kilimandjaro 

 and Merii is some respects quite reniarkable. It contains fifteen species, representing 

 eleven genera; three of the species are new to science, and probably a fourth, which 

 I refrain from desciibing, as it is only represented by a solitary female. Excluding 

 a few which it is impossible to name, owing to immaturity or bad condition, the 

 collection consists of 794 specimens, of which no less than 447, or considei'ably more 

 than half, are all examples of one new species. Of the other two new species, there 

 are 52 and 57 specimens respectively; of two other species which are not new, but 

 hitherto very insufficiently known, there are 93 and 65 specimens each. 



Of the remainder, there are one or two specimens of well known and widely 

 distributed forms which call for no remark; there are eleven of Forficula rodziankoi 

 Sem., which seems to be rjye, and is not well known, and there are 20 specimens 

 of Spongiphora quadrimaculala Stäl, and 35 of Echinosoma ivahlbergi Dohrn, neither 

 of which are numerous in collections and museums. 



There are only two cases which are poorly represented, but yet of such interest 

 that it is to be regretted that specimens are not more numerous; one of these is a 

 Single female of what is certainly a new species of Pseudochelidura, and the other 

 case is that of Pijgidicrana bettoni Kirby, of which there are two females and a very 

 young larva; this species is probably not rare, but it has been only comparatively 

 recently discoved and is not yet generally known. 



We may arrange the species known to occur in the region of Kilimandjaro 

 and Meru as follows: 



A. Uiiivprsally distributed Species. 



Chelisoches morio Fabr. Anisolabis annulipes Luc. 



Aplerygida arachidis Yers. 



Sjöatedia Kilimandjuro-Mvni Exiiediliviu 17. \ 



