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



2. Segmenttim peniiltimutn ventrale S medio 



triangulariter excisum 2. camposi, Bor. 



2.2. Segraentum penultimum ventrale integrum 

 vel sinuato-emargiuatum. 

 3. Segraeutura ultimum dor.sale cJ in parte 



postica fortiter depressum 3. silvestrii, Bor. 



3.3. Segmentum ultimum dorsale J postice 



haud depressum 4. laliventris, Phil. 



1. Esjihalmenus peringueyiy Borra. 



Gonolabis periw/ueyi, Borm. Ann. Mus. Civ. Gen. xx. p. 451 (1900); 

 Burr, Tr. Eiit. Soc. London, p. 293 (1904) ; Kirbv, Cat. Ortb. i. p. 16 

 (1904). 



Soutli Afiica : Cape Colony, CaleJon (Borm., coll. Bruii- 

 ner, and c. m.), taken by Peringuey. 



De Bormans only gave a very brief description of this 

 species, but ample for its identification. It is the only Old- 

 World member of the genus, and the abdomen being four or 

 five times as wide at the apex as at the base, its appearance 

 is very distinctive ; the general colour is brick-red. The 

 dimensions are as follows : — 



6. 2- 



nun. mm. 



Length of body lOh-Wo 11 



Breadth of prouotum lo-l"7u \~o 



Breadth of base of abdomen .... r7o-2 2 



Breadth of apex of abdomen .... 3-5 3'5 



Length of forceps 2 2-5 



Breadth of forceps 2o-4"7-5 I'o 



2. I^sphalmenus camposi, Borelli. 

 Gonolabis camposi, Borelli, Boll. Mus. Tor. xxii. n. 552 (1907). 



Ecuador. 



This species is carefully described by Borelli, who gives a 

 figure of the characteristic form of tiie ventral surface of the 

 apex of the abdomen. 



It differs from its congeners in its shining black colour 

 and less strongly dilated abdomen. 



3. Esjyhalmenus silvestrii, Borelli. 



Gonolabis silvestrii, Borelli, Boll. Mus Tor. xvii. no. 418, p. 4, fig. 



(1902) ; Buir, Bull. Mus. H. X. Paris, p. 31 (1908). 

 Gonolabis sylvestr'd, Kirbv, Cat. Orth. i. p. 31 (1904). 



Patagonia. 



This species is well described and figurgd by Borelli. 



