722 CATALOGUE OF 



-f f- Hind border of the prothorax rounded. - 29. GLYPHANUS. 



Head very large. - 30. LEPRUS. 



Prothorax much elongated. 32. TRACHVPETRA. 



ft Hind border of the prothorax truncated. 14. CHRYSOCHRAON. 



** Head globose, very prominent. - 26. MASTAX. 



b. Body much compressed. 



* Prothorax crested. - 33. CHROTOTYPUS. 



** Prothorax not crested. ... 34. HIPPISCUS. 



B. Hind legs hardly formed for leaping. 



a. Transverse furrow of the prothorax well defined. 35. PNEUMORA. 



b. Transverse furrow of the prothorax indistinct. 36. CYSTOC^ILIA. 



The following genera are omitted in this Synopsis. Tomonotus, 

 Sauss.; Hippopedon,5atm.; Hyalopteryx, Charp. ; Brachypeplus, Charp. ; 

 Phlo3oba, Stal ; Onorisa, Stal; Sinipta, Stal. Tomonotus appears to 

 include two or three genera. Hippopedon is placed next to Stauronotus. 

 Brachypeplus may be associated with Leprus. Phlceoba and Sinipta are 

 described as closely allied to Hyalopteryx, and this genus comes next to 

 Oxycoryphus. 



Genus 1. PACHYTYLUS. 



Gryllus, Linn., Fabr., Rossi, ZetL, Charp., Panz., Phil., Ratz., Ramb. 

 Acridium, Deg., Latr., Wesm., Costa Psopha, Fieber (Edipoda, 

 Burnt. Fisch. de W. Serv. De Borck Locusta, Leach, Steph., Curt. 

 Pyryodera, Fisch. de W. Pachytylus, Fieb. Ketch, Orth. Oberschles, 

 5. Fisch. Orth. Eur. 392. 



Europe. 



A. Prothorax not highly crested. 



a. Keel of the prothorax low in front. - uiigratorius. 



b. Keel of the prolhorax of equal height. - cinerascens. 



B. Prothorax highly crested. ----- armatus. 



1. PACHYTYLUS MIGRATORIUS. 



, Roes. Ins. ii. Gryll. 145, pi. 24. Frisch. Ins. Deutsch. ix. pi. 1, 

 f. 8 Gryllus (Locusta) migratorius, Linn. Syst. Nat. i. 2,700 Gryllus 

 migratorius, Fabr. Ent. Syst. ii. 53. Zett. Orth. Suec. 74. Phil. 

 Orth. Ber. 27. Ratz. Forst. Ins. iii. 275, pi. 14, f. 3, F. Charp. Hor. 

 Ent. 131. Don. Brit. Ins. viii. pi. 270 Acridium migratorium, 

 Deg. Ins. ed. Goeze, 304, pi. 23, f. 1. Latr. Hist. Nat. xii. 150. 

 Costa, Faun. R. Nap. 2, pi. 1, f. 1 CEdipoda migratoria, Cuv. R. 

 Anim. 3 Edit. pi. 86, f. 2. Fisch. de W. Orth. Ross. 292, pi. 12, f. 1. 

 De Borck, R'dtv. Ins. 100, pi. 3, f. 5 Locusta migratoria, Sleph. Ill, 

 Mand. vi. 20. Duncan, Nat. Libr. Ent. i. pi. 15, f. 1 (Edipoda 

 raigratorioides ? Reiche, Voy. Abyss, iii. 450, pi. 28, f. 4 Acridium 



