The Male Genital Armature of the Dermaptera. 447 



the organs of a Paraguayan species which he refers to Ctenisolabis 

 fernandezi Bor., which Dr. Borelli considers, in litt, to be a mis- 

 identification of the well-known Paraguayan species known as 

 C. nigra, which may or may not be identical with the original 

 B. nigra of Scudder, from Peru. In all these figures Zacher shows 

 a rather broad, short, apically acute metaparamere. In all the 

 virga is many times longer than the metaparameres, with what 

 appears to be narrow chitin-plates, shaded to look like " Spiral ver- 

 steifung," and apparently a few denticulate areas in the preputial 

 sacs. 



I am able to illustrate three species recently described by me 

 from New Caledonia : Brachylabis canaca, Antisolabis rouxi, and 

 A. transiens. In the first two the metaparameres are of the same 

 general type as those figured by Zacher, but longer ; the virga, 

 discernible on one side only, is simple, gently sinuate, about twice 

 as long as the metaparameres, with no sign of chitin-plates (PI. IX. 

 figs. 16 and 18). In the third the metaparameres are still longer, 

 with both margins sinuate, the virga single, straight, and very long, 

 with no marked passage from ejaculatory duct to virga, no vesicle, 

 and no trace of spiral structures, but a pair of narrow chitin rods 

 in the preputial sac, which are probably what Zacher figures in 

 the case of I. braueri and L. usambarana. Both my specimens are 

 very feebly chitinized. B. trdgdrdhi Burr, from Natal, is also 

 figured (PL IX. fig. 19). 



Sub-family 7. Apachyid^;. 



Zacher considers this group an offshoot of the Labiduridm, and 

 as the genitalia offer no very specialized characteristics, I drop the 

 sub-order Paradermaptera, and treat the Apaehyidse as a family of 

 the Protodermaptcra. 



I have so far only examined the male genitalia of Apachyus 

 beccarii, which closely resembles those of A. depressus as figured 

 by Zacher. The curious squamopygidium loses somewhat of im- 

 portance when we remember that a similar feature is characteristic 

 of Gonolabina, in the Esphalmeninse. In fact, I consider that the 

 Apaehyidse are not more remote from the Labidurin/v than are the 

 Esphalmeninse. My specimens show an inflated basal vesicle, and 

 though Zacher refers to its non-existence, his figure clearly shows 

 a small one (PI. IX. fig. 20). 



Sub-family 8. Platyla.biin.e. 



This sub-family, containing a single monomorphic genus, has 

 been dealt with by Zacher. 



2 i 2 



