76 CATALOGUE OF 



11. Second joint of the hind tarsi hardly apparent. 

 m. Wings complete. 



Genus 30. PLATYDACTYLUS. 



Gryllus, Deg., Oliv., Guerin — Acheta, Fab. — Platydactylus, BrulU, Hist. 

 Nat. Ins. ix. 176. Serv. Hist. Orth. 363. Eneoptera, Burm. Handb. 

 Ent. ii. 736— Gryllus (Platydactylus) Haan, Verh. Nat. Gesch. Ned. 

 Ind. Bez. Ins. 233. 



America. 



1. Platydactylus surinamensis. 



Gryllus surinamensis, Dcg. Ins. iii. 519, pi. 43, f. 1 — Gryllus brasiliensis, 

 Oliv. Enc. Melh. vi. 634 — Acheta brasiliensis, Fabr. Ent. Syst. ii. 30 

 — Gryllus Servillei, Gu'er. Icon. Regn. Anim. pi. 54, f. 1 — Platy- 

 dactylus surinamensis, Brittle, Hist. Nat. Ins. ix. 176. Serv. Hist. 

 Orth. 365, pi. 1), f. 1 — Eneoptera Brasiliensis, Burm. Handb. Ent. ii. 

 736 — Gryllus (Platydactylus) brasiliensis, Haan, Verh. Nat. Gesek. 

 Ned. Ind. Bez. Ins. 233. 



a. Demerara. From Mr. Bowers' collection. 



2. Platydactylus vicinus. 

 vicinus, Serv. Hist. Orth. 365 — surinamensis, mas. ? 

 Buenos Ayres. 



3. Platydactylus bicolor. 



bicolor, Scudder, Cent. Orth. Dec. Gryll. 

 Bogota. 



4. Platydactylus coxsimilis. 



Fcem. Testaceus, tomentosus ; caput facie imeaque transversa nigricante 

 marginata pallide flavis ; oviductus abdomini aqui/ongus ; cerci 

 breviores ; tibia? posliccc serratce, extus quadrispinosa, inius quinque 

 spinosa ; aloe antica abdomen superanles, linea subcostali e guttis 

 nigris ; alee posticus valde longiores. 



Female. Testaceous, tomentose. Head shining in front, pale yellow 

 towards ihe mouth and with a pale yellow transverse line between the eyes ; 

 this line is diffusedly bordered with blackish on the hind side. Eyes tawny, 

 slightly prominent. Third joint of the palpi slightly securiform. Abdomen 

 shining, with three pic°ous dorsal stripes, the middle stripe concise, the 

 other two broad and incomplete. Cerci rather shorter than the oviduct. Ovi- 

 duct slightly curved upward, black at the tip, as long as the abdomen. 

 Hind tibiae serrated on each side, with four spines on the outer side and 

 with five spines on the inner side. Fore winj;s extending beyond the abdo- 

 men, in structure like those of P. surinamensis ; a row of black dots along 

 the externo-medial vein ; apical triangle pale cinereous. Hind wings 

 extendiug much beyond the fore wiugs. Length of the body 13 Hues. 



