Mr. M. Burr — Notes on the Forficularia. 101 



near the apex, but attenuated at the apex itself ; last dorsal 

 segment very small, with a very distinct deep round depres- 

 sion in the middle. Penultimate ventral segment large and 

 rounded, completely covering the ultimate ventral segment. 



Pygidium not visible. 



Forceps <$ with the branches slender, more or less dilated 

 and depressed at the base, this dilated part crenulated on the 

 inner margin, ending with a small, conical, nearly obsolete 

 tooth ; beyond this tooth the branches are very slender, curved 

 outwards and then inwards, enclosing a circular space, the 

 apices almost meeting but not decussating ; beyond the 

 obsolete tooth the branches are quite smooth and unarmed. 



Patria. Sarawak, Penrissen, May 1899. 



This species recalls in appearance Chelisoches ? picticornis, 

 Kirb., but it is not so long and is more thick-set. It appears 

 to be allied to the little-known Forficida lobophoroides of 

 Dohrn, of which C. picticornis may be the male, which is 

 not definitely known. F. ares is allied to Anechura herm.es 

 and may have to be moved to that genus. Its uniform black 

 colour and the form of the forceps distinguish it. 



24. Opisthocosmia centurio, Dohrn. 



Kuching, Dec. 10-14, 1898. 

 Previously recorded from Borneo. 



25. Opisthocosmia lugens, Borm. 



Penrissen, May 1899, 2 tf, 4 ? . 

 Previously recorded from Burmah. 



Dormans Park, East Griustead, 

 April 1900. 



EXPLANATION OF PLATE IV. Figs. 1, 2, 4 6. 



Fig. 1. Anechura Hermes, sp. n. $ . Forceps. 



Fig. 1 a. Ditto. From the side. 



Fig. 2. Chelisoches Hercules, sp. n. J . Forceps. 



Fig. 2 a. Ditto. From the side. 



Fig. 4. Chelisoches Shelf brdi, sp. n. <$. Forceps. 



lig.Q. Forjicula? ares, sp. n. <$ . Forceps. 



