BLATTARI^. 57 



Genus 3. DIPLOPTERA. 

 Diploptera, Sauss. Rev. Zool. xvi. 325 ; Hist. Nat. Mex. iv. 177. 



1. Diploptera Silpha. 



Diploptera Silpha, Sauss. Rev. Zool. xvi. 325. 



Australia. 



2. Diploptera silphoides. 



Mas. Picea, longi-ovata, suhtilissime punctata ; caput margine antico 

 fulvo ; oculi invicem remoli ; anlenncB hasi fulvce, corpora ^HX 

 breviores ; prothnrax antice truncatus, margine postico sinuato ; 

 abdomen alas anlicas superans ; pedes fulvi; ales posticce hyalincB, 

 pallide cinerece. 



Male. Piceous, elongate-oval, shining. Head, prothorax and fore 

 wings dull, very finely punctured. Head tawny about the mouth. Eyes 

 ferruginous, far apart. Antennae slender, nearly as long as the body, alike 

 in colour except the first joint, which is tawny. Prothorax truncated iu 

 front, slightly rounded on each side, slightly excavated on each side of the 

 hind border near the lateral angle, which is nearly rectangular. Abdomen 

 much broader than the prothorax; upper surface dull on each side and at 

 the tip. Legs lawny. Fore wings shorter than the abdomen ; right fore 

 wing broader than the left one, having a shining narrow somewhat roujjhly 

 punctured anal area bordering the anal furrow, which is distinct. Hind 

 wings pale cinereous, hyaline; veins blackish. Length of the body 7^ 

 lines; of the wings 18 lines. 



D. Silpha has ferruginous antennae with the twelve first joints brown, 

 and its fore wings are as long or longer than the abdomen, but it is very 

 nearly allied to this species. 



a, b. Philippine Isles, From Mr. Cuming's collection. 



3. Diploptera galerucoides. " 



Foem. Fulva^ elliptica, plana, subtilissime punctata ; caput prothoracem 

 perpaullo superans ; oculi invicem sat late remoti ; antennce corpora 

 breviores, basi nigrce ; prothorax subellipticus, fanciis duabus nigri- 

 cantibus interruptis el abbrevialis, margine antico vix truncato, 

 lateribus semihyalinis, margine postico fere recto ; abdomen piceum, 

 apice fulvuin et reflexum, alas poslicas superans ; cerci fulvi, longi ; 

 alee anlicce coriacea ; alee posticm hyalince, cinerece. 



Female. Tawny, elliptical, flat, shining, very finely punctured, minutely 

 Selulose. Head extending very little beyond the prothorax, largely and 

 thinly punctured. Eyes piceous, rather far apart. Auteiinae submoniliform, 

 shorter than the body, black at the base. Prothorax transversely sub- 

 elliptical ; fore bonier hardly truncated; sides seiniliyaline, much rounded, 

 not reflexed ; hind border almost straight, two iuteirupted and much abbre- 

 viated blackish bauds. Abdomen piceous, extending rather beyond the 

 fore wings ; apical lamina lawny, conical, deeply coucave above or with 

 much reflexed borders, Cerci tawny, long. Legs moderately long ; femora 



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