76 CATALOGUE OF 



II. Second joint of the hind tarsi hardly apparent. 

 m. Wings complete. 



Genus 30. PLATYDACTYLUS. 



Gryllus, Deg., Oliv., Guerin Acheta, Fab. Platydactylus, Brull&, Hist. 

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

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

 Ind. Bez. Ins. 233. 



America. 

 1. PLATYDACTYLUS SURINAMENSIS. 



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

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

 Gryllus Servillei, Guer. Icon. Regn. Anim. pi. 54, f. 1 Platy- 

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

 Orth. 365, pi. 9, f. 1 Eneoptera Brasiliensis, Burnt. Handb. Ent. ii. 

 736 Gryllus (Platydactylus) brasilieusis, Haan, Verh. Nat. Gesch. 

 Ned. Ind. Bez. Ins. 233. 



a. Demerara. From Mr. Bowers' collection. 



2. PLATYDACTYLUS vie IN us. 



vicinus, Serv. Hist. Orth. 365 surinamensis, inas. ? 

 Buenos Ayres. 



3. PLATYDACTYLUS BICOLOB. 

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

 Bogota. 



4. PLATYDACTYLUS CONSIMILIS. 



Fcem. Testaceus, tomentosus; caput facie lineaque transversa nigricanle 

 marginata pallide jlavis ; oviductus abdomini cequilongus ; cerci 

 breviores ; tibice postica serratce, extus quadrispinosce, inlus qulnque 

 spinoftce ; alee anticcB abdomen superantes, lined subcostali e yuttis 

 nigris ; alee posticce valde iongiores. 



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

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

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

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

 shining, wiih three piceous 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 wings 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 

 extending much beyond the fore wings. Length of the body 13 lines. 



