106 GEOGRAPHICAL DISTRIBUTION 



Africa, West Asia, China, Hiudostan, Australasia, Australia and the 

 Sandwich Isles; the two European species are remarkable on account of 

 their wide diffusion and their variation in colour. Pyrgomorpha inhabits 

 North Africa, South Africa, Hindostan, Australasia, South America towards 

 the Atlantic and North America. Opomala inhabits West Africa, South 

 Africa, China, Hindostan, Australasia, Australia and South America 

 towards the Atlantic. Porthetis inhabits North Africa. Heteracris appears 

 in North Africa, in West Africa, in South Africa and in all the regions 

 from China to Australia; it attains its largest dimensions in Hindostan, 

 where it rivals the locusts in size. Platvphyma has been recorded in 

 Central America. Staurouotus inhabits North Africa and North Asia. 

 The only recorded species of Paracinema is a native of South Europe and 

 of South Africa. Oxycorypbus inhabits North Africa, West Asia and 

 Central America. Thrinchus inhabits North Africa and West Asia, and 

 has been recorded from South America towards the Pacific. Glyphauus 

 has not been mentioned as a native of any other region. 



3rd. North Africa. 



Holocompsa Acridoxena Cyrtacanthacris 



Leziua Puecilocera Chrotogonus 



Hetrodes Dericorys 



The genera of North Africa are mostly similar to those of South 

 Europe, with the exception of a few forms which appear also in West 

 Africa and in South Alrica. This region is often devastated by the locusts 

 that invade it in myriads from the interior of Africa, and sometimes extend 

 their ravages to South Europe. Holocompsa inhabits South Africa, 

 Australasia and Central America. Lezina, Acridoxena and Dericorys have 

 not been said to occur in any other region. Hetrodes inhabits all the 

 coasts of Africa and also West Asia. Pcecilocera inhabits South Africa and 

 Hindostan. Chrotogonus inhabits South Africa, Hindostan and Australia. 

 Cyrtacanthacris, of which the numerous species are distinguished from 

 those of Acridium by the oblique and curved prosternal spine, appears in 

 Egypt and is plentiful in the following regions: — South Africa, China, 

 Hindostan, Australasia, Australia, South America towards the Atlantic, 

 Central America and North America. 



4th. West Africa. 



Nauphceta Scleropterus Mesops 



Oxyhaloa Homoeogryllus Phymateus 



Epilampra Palolta Petasia 



Ischnoptera Pseudorbynchus Tinaria 



Hemimacris Orophus Cladouotus 



Phceophilacris Pseudophyllus Hymenotes 



Cosmoderus Mecopoda 



The Dermaptera of this region are less known than those of many 

 other regions, and the genera are probably much more numerous than 

 they now appear to be. Nauphceta inhabits South Africa, Australasia, 

 South America towards the Atlantic and Central America. Oxyhaloa 



