1906.] 113 



omitted to describe in earlier papers. I aecordinojly publish the 

 description now, so that the name may be quoted in the final list ot 

 the Dermaptera of the Paris Museum. 



In overhauling this and the allied genera, I have come to the 

 conclusion that the Asiatic species may be conveniently and naturally 

 separated from the typical form, so that the genus Neoloboipliora may 

 be restricted to the forms which occur only in tropical x\merica. 



It is impossible to draw up a satisfactory table of the species 

 until the males of N. Ucolor, Borelli, and of N. hogotensis, Scudder, 

 are known. In the meantime, T offer the following arrangement as 

 provisional : — 



1. Elytra brevia, subtriangularia l. Z>^■co7or, Borelli. 



1.1. Elytra subquadrata. 



2. Elytra et pronotum punctulata 2. ruficeps {Bxxrm.). 



2.2. Elytra et pronotum Isevia. 



3. Statura mediocri 9 (13.5 min.) (? occiput fuscum)... 



3. hogotensis, Scudder. 



3.3. Statura minore, ? (10 mm.) ; (occiput Isete flavum) ... 



4. borellii, sp. n. 



I formerly confused this new species with N. hogotensis, as the 

 females appear to differ but little, but I now consider it distinct upon 

 the grounds that it is a native of Mexico, whence there are several 

 specimens in the collection, whereas iV. logotensis occurs in Costa 

 Eica, Panama and Colombia ; and that it is also noticeably smaller. 



N. bicolor appears to be quite distinct, but still it is desirable 

 that the male be discovered, so as to put its true position beyond 

 doubt. 



Of the two species of which the males are known, there can be 

 no confusion, as can be seen by the following comparison ; it remains 

 to be seen to which species the male of N. hogotensis will approach 

 when it is discovered. 



It should be remembered that these insects are incapable of 

 flight, and it is therefore probable that different species are peculiar 

 to separate mountain systems, as is the case in our European genus 

 Ghelidura, of which there is one species found only in the Alps, 

 another in the Apennines, one in the Eastern Pyrenees, and one in 



