DERMAPTERA SALTATORIA. 13 



Hind wings cinereous, ferruginous at the tips, somewhat longer than the 

 fore wings. Length of the body 10 lines ; expansion of the fore wings 

 26 lines. 



Very near P. Columbicus ; a little more slender and much darker. 



a. Chontales, Nicaragua. From Mr. Janson's collection. 



Platydactylus litubatus. 



Fcem. Testaceus, subpubescens ; caput nigricante quadrimaculatum et 

 uniplagiatum ; prothorax liluris sex anticis punctis nonnullis 

 fasciaque postica interrupta nigricantibus ; vagina nigra, recta, 

 abdomini aquilonga ; pedes breviusculi, femoribus posticis nigricante 

 uniplagiatis et unistrigatis, tibiis quatuor anterioribus nigro uni- 

 maculatis ; alee diaphana; ala antica sinistra basi nigricante 

 uniguttata. 



Female. Testaceous. Head and prothorax slightly pubescent Head 

 with four blackish spots on the hind border and with a blackish patch on 

 the tip of the vertex. Prothorax with six blackish marks on the fore 

 border, with some blackish points in the disk and with an interrupted 

 blackish band on the hind border. Sheaths of the oviduct black, straight, 

 as long as the abdomen. Legs rather short ; four anterior tibiae with a 

 black spot near the base ; hind femora with a blackish elongated patch and 

 a blackish streak on the outer side; hind tibiae shorter than the hind 

 femora, their five spines on each side black at the base. Wings pellucid. 

 Fore wings extending much beyond the abdomen, the left one with a 

 blackish dot at the base. Hind wings extending rather beyond the fore 

 wings. Length of the body 9 lines; expansion of the fore wings 18 lines. 



Most nearly allied to P. similis, from which it is distinguished by the 

 shorter tibiae and by the points on the fore wings. 



a. Chontales, Nicaragua. From Mr. Janson's collection. 



Page 88. 



Platydactylus pacificus. 



Mas. Testaceus, nilens ; caput et prothorax fulva; oculi valde pro- 

 minuli ; prothorax dorso poslice sublatescente, lateribus postice 

 angustioribus ; cerci subtiliter pilosi, abdomine longiores; tibia 

 postica utrinque trispinosa ; ala antica lata, abdomen paullo 

 super antes. 



Male. Testaceous, shining. Head and prothorax tawny, pubescent. 

 Head convex, smooth, as broad as the fore border of the prothorax; front 

 erect. Eyes oval, very prominent. Prothorax widening slightly above 

 from the fore border to the hind border, with two transverse impressed lines, 

 of which the anterior one is interrupted in the middle; sides contracted 

 towards the hind border. Cerci finely pilose, rather longer than the abdo- 

 men. Legs pubescent; hind femora incrassated, slender towards the tips, 

 rather longer than the abdomen ; hind tibiae as long as the hind femora, 

 with three long spines on each side and with two longer apical spines. 



