The Zoologist— September, 1870. 2297 



and I believe that they should be considered as specifically distinct, 

 and that P. cinerascens has been often mentioned by the name of 

 P. migratorius. The former species is more widely spread than the 

 latter, and is abundant in New Zealand, where it is occasionally of a 

 much darker colour than it is in other localities, and is sometimes 

 wholly blackish. The devastating locust of S. Africa is another 

 species. 



Fam. FoRFicuLiDiE. — Gen. Labiduea, Leach. 



1. Flavipes. Forficula flavipes, Fabr. Ent. Sijst. ii. 2. Cairo. 

 Wady Genneh. Wady Amara. Wady Gharandel. Inhabits also the 

 West Coast of Africa. The apical forceps is longest in the winged 

 state, and thereby adapted to its office in the unfolding of the wings. 



Fam. PoLYPHAGiD^. — Gen. Polyphaga, Brulle. 



2. Mgyptiaca. Blatta iEgyptiaca, Linn. Syst. Nat. ii., 687. Cairo. 

 Inhabits Malta, Greece, and some parts of Asia. 



Fam. Blattid^.— Gen. Periplaneta, Burm. 



3. Americana. Blatta Americana, Linn. Syst. Nat. ii., 687. Cairo. 



4. Orien talis. Blatta orientalis, Linn. Syst. Nat. ii., 688. Cairo. 



5. Lateralis, Walk. Cat. Blatt. 136. Cairo. 



Fam. Mantid^e. — Gen. Eremiaphila, Lefebvre. 



6. Audouini, Lefebvre, Ann. Soc. Ent. Fr. iv. 482. Rafla. 



Gen. Blepharis, Serv. 



7. Mendica. Mantis mendica, Fahr. Ent. Syst. ii. 17. Akeck. 



Mount Sinai. 



Gen, Mantis, Linn. 



8. Religiosa, Linn. Syst. Nat. ii., 690. Souakin. Wady Ferran. 

 Inhabits S. Europe. 



9. Simulacrum, Fabr. Ent. Syst. ii. 21. Cairo. Heliopolis. 

 Harkeko. Inhabits Hindostan and W. Africa. 



Fam. Gryllid^. — Gen. Gryllotalpa, Ray. 



10. Africana, Pal. Beauv. Ins. 229. Cairo. Mount Sinai. Inhabits 

 Africa, Asia, Australia and New Zealand. 



Gen. Gryllus, Linn. 



11. Capensis. Acheta Capensis, Fabr. Ent. Syst. ii., 31. Akeck. 

 Mount Sinai. Inhabits S. Europe, S. Asia, Australia and America. 



