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17. ORTHOPTERA. 

 1. Dermatoptera 



by 



MALCOLM BURR. 



With 1 plate. 



The collection of Dermatoptera made by Dr. Yngve Sjöstedt in Kilimandjaro 

 and Meru is some respects quite remarkable. It contains fifteen species, representing 

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

 I refrain from deseribing, 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 speeimens, of which no less than 447, or considerably more 

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

 are 52 and 57 speeimens respectively; of two other species which are not new, biit 

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



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

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

 Sem., which seems to be rare, and is not well known, and there are 20 speeimens 

 of SjMngiphora quadrimaculala Stäl, and 35 of Echinosoma urihlbergi Dohrn, neither 

 of which are numerous in coUections and museums. 



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

 that it is to be regretted that speeimens 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 Pygidicrana hettoni 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. Uiiiversally distributed Species. 



CheUsoches morio Fabr. Anisolabis aimidipes Luc. 



Apterygida arachidis Yers. 



Sjöstedts Kilimandjaro-Meru Expedition. 17. \ 



