Mr. M. Burr — Notes on the Forficularia. 389 



it as identical with P. bettoni, Kirby ; since then I have 

 been able to examine Kirby's types and Karsch's types 

 of P. caffra in the Berlin Museum. There is an as- 

 tonishing' resemblance in colour and markings between 

 these African species, P. caffra, P. bettoni, P. frontalis, 

 P. separata; apart from the forceps they are practically 

 indistinguishable, and the forceps differ in degree rather than 

 in kind. Perhaps when a large amount of material can be 

 examined together, it will be possible to arrange a series 

 passing through all these forms from one extreme to another. 

 For the present, however, it is convenient to give distinct 

 names to the various types of forceps. 



There are two chief forms — the depressed, rather short, and 

 bowed forceps of P. caffra and P. bettoni, and the more 

 elongate and slender forceps of P. frontalis and P. separata. 



I am now inclined to think that Sjostedt's specimens 

 should be assigned, at least provisionally, to P. separata. It 

 is certainly nearer to it than it 13 to P. bettoni, Kirby, in 

 which the forceps approach rather to the type represented by 

 P. caffra, Karsch. 



Genus V. Cranopygia, nov. 



Pronotum subrectangulare, angulis ipsis rotundatis ; segmenturn 

 penultimum ventrale S angusturn, lanceolatum, acuto-rotun- 

 datum ; segoientum ultinium dorsale S angulis exteruis utrinque 

 in cristam acutaru plicaturn ; ceteris cum genere Pygidicrana 

 congruet. 



Type, P. cumingi, Dohrn. 



This genus will include those species with a narrow penul- 

 timate ventral segment and a subrectangular pronotum. 



Table of Species. 



1. Forceps 3 superne dente cristato armatus; 

 elytra rufescentia, nigro-iimbata ; pronotum 



vittid nigris 2 ornatum 1. cumingi, Dohrn. 



1.1. Forceps <5 superne inermis ; elytra fusca ; pro- 

 notum fusco-testaceum, lineis 3 pallidis .... 2. nietneri, Dohrn. 



C. nietneri varies in depth of colour from light yellowish 

 red to almost black ; the curvature of the forceps also varies 

 considerably ; in one male in my collection the right branch 

 is toothed and excavate on the inner margin near the apex; 

 in the same specimen the apex of the penultimate ventral 

 segment has a faint emargination which I cannot detect in 

 other specimens. 



Ann. & Mag. X. Hist. Ser. 8. Vol. ii. 27 



