gryllidjE. 77 



The cerci are shorter than those of the typical species (P. surinamensis) 

 and the hind tibiae are rather shorter and stouter and more strongly 

 serrated. 



5. Platydactylus columbicus. 



Fcem. Fidvus, tomentosus ; caput breve, antice nitens, nigro plagiatum ; 

 palporum arliculus 3ns apice piceus el oblique truncatus ; prothorax 

 antice an gustior ; abdomen piceum ; cerci fulvi, abdomine non brevi- 

 ores ; oviductus testaceus, apice niger, corpore vix brevior ; pedes 

 longiusculi, femoribus posticis fusco substrigatis, tibiis posticis 

 utrinque serralis et quadrispinosis ; alec anlicce paliide testacete, abdo- 

 men longe superanles , incondite reticulata, venis lonqitudinalibus sub- 

 rectis, carina luterali nigricaule punctata ; alee poslicce longiores. 



Female. Tawny, tomentose. Head shining in front ; disk of ihe face 

 blackish. Eyes slightly prominent, partly blackish near the hind border. 

 Third joint of the palpi piceous towards the tip, which is obliquely truncated 

 and excavated. Antenna; very slender, about twice the length of the body. 

 Prothorax not longer than broad, a little narrower in front. Abdomen 

 shining, piceous. Cerci tawny, as long as the abdomen. Oviduct testa- 

 ceous, with a black tip, nearly as long as the body. Legs rather long ; hind 

 femora obliquely and indistinctly streaked with brown on the outer side ; 

 hind tibiae minutely serrated aud with lour rather slender spines on each 

 side. Fore wings pale testaceous, extending much beyond the lip of the 

 abdomen, with blackish dots along the externo-medial vein, irregularly 

 reticulated between the nearly straight and parallel longitudinal veins; 

 apical triangle pale cinereous. Hind wings pale cinereous, extending 

 much beyond the fore wings ; costa and veins pale testaceous. Length of 

 the body 10£ lines. 



It much resembles P. consimilis ; the hind tibiae are rather shorter, 

 and the reticulation of the fore wings is more regular. 



a. Columbia. From M. Salle's collection. 



6. Platydactylds velutinus. 



Fcem. Testaceus, tomentosus, subvelutinus ; caput breve, antice nitens 

 paliide testaceum ; oculi parvi ; palporum articulus 3us subsecuri- 

 formis ; prolhoracis lutera rotundata ; abdomen piceum ; cerci abdo- 

 mine longiores; oviductus fulvus, apice niger, cercis mullo longior ; 

 pedes anteriores breves ; pedes postici longi, tibiis tarsisque piceis, 

 tibiis ulrinque selosis exlus trispinosis intus quinque spinosis ; aim 

 antica confertim et incondite reticulata:, abdomen longissime super- 

 antes; alee postica longiores. 



Female. Testaceous. Head and prothorax tomentose, slightly velvety. 

 Head short, pale testaceous and shining in front. Eyes piceous, small, 

 rather prominent, remote from the hind border. Third joint of the palpi 

 slightly securiform. Antennae very slender, about twice the length of the 

 body. Prothorax not longer than broad ; side borders rounded. Abdomen 



