84 CATALOGUE OF 



thick. Prothorax transverse, broadest in front; sides slightly reflexed ; 

 lateral keels hardly apparent. Cerci nearly as long as the body. Oviduct 

 much lunger than the abdomen, black at the tip. Hind tibiae serrated and 

 with four long wide apart spines on each side ; spines on the inner side 

 curved, aliemate with those on the outer side. Fore wings extending a 

 little beyond the lip of the abdomen ; veins in the subcostal space very 

 oblique." Hind wings extending much beyond the fore wings. Length of 

 the body 11 lines. 



The long spines of the hind tibiae distinguish it from the species 

 previously described. 



a. Ceylon. From Mr. Macgillivray's collection, 



19. Platydactylus varipennis. 



Mas. Ferrugineus, tomentosus, gracilis, fere linearis; caput pallido sex- 

 lineatum, antice subcarinatum, facie fulva ; antenna corpore plus 

 duplo longiores ; prothorax subproductus, antice paullo angustior 

 lateribus perparum rolundatis ; venter piceo vittatus ; cerci abdomine 

 paullo breviores; pedes nigrieante fasciati, tibiis posticis utrinque 

 (juadrispinosis ; alee anticce abdomen longe superantes, guttis sub- 

 costalibus nigricanlibus gutlisque apicem versus fuscis ; alee posticce 

 longiores. 



Male. Ferruginous, tomentose, slender, nearly linear. Head promi- 

 nent between the sockets of the antenna?, with six pale longitudinal lines 

 on the vertex; face tawny, shining. Eyes nearly round. Third joint of 

 the palpi slightly clavate, longer than the second. Antennae much more 

 than twice the length of the body. Prothorax a little narrower in front, a 

 little longer than broad; sides very slightly rounded. Abdomen with a 

 piceous stripe beneath. Cerci a little shorter than the abdomen. Legs 

 with irregular blackish bands; hind tibiae not serrated, with four short 

 spines on each side. Fore wings extending much beyond the abdomen, 

 with blackish dots along the scapular vein aud with a few brown dots in the 

 apical reticulated parts; tympanum intersected by an oblique vein; sub- 

 costal space pellucid, with sixteen branches of the mediastinal vein which 

 are more or less curved and are most slanting towards the base. Hind 

 wings extending beyond the fcue wings. Length of the body 7-j lines. 



It is narrower than nearly all the other species of the genus, and the 

 hind tibia; are comparatively short. 



a. Ceylon. From Dr. Thwaites' collection. 



Australasia 



20. Platydactylus quadratus. 



Gryllus (Plaiydactvlus) quadratus, Haan, Verh. Nat. Gesch. Ned. Ind. 

 Bez. Ins. 234." 



Java. 



