ACP.IDID.E. 635 



wings a little shorter than the fore wings; veins in the hinder part whitish. 

 Length of the body 15 lines ; expansion of the fore wings 28 lines. 



a. Interior of South Africa. Presented by the late Earl of Derby. 



5. Pamphagus reflexus. 



Mas. Cinereus : caput postice muUicarinatum, antice brevi-conicum 

 marginalum ; autenme lancenlata, prothorace longiores ; prothorax 

 tuber culatus, crista apud medium suhexcavata apicem versus serrata, 

 plagis duahus lateraLihus nigricantibus cinereo pallida marginalis, 

 margine posf.ico producto acuta ; femora postica supra spinosa ; alte 

 abdomen superantes. 



Male. Cinereous. Head above with one middle keel and with 

 several keels on each side; fore part short-conical, with much reflexed 

 borders; front with four keels, of which the inner pair diverge towards the 

 mouth. Eyes ferruginous, transverse, elliptical, prominent. Antennae flat, 

 lanceolate, longer than the prothorax. Prothorax luberculated ; crest 

 slightly concave in the middle part, serrated towards the tip ; an elongated 

 blackish patch on each side, bordered exteriorly by a pale cinereous line ; 

 hind part acute, much elongated. Hind femora armed with spines above ; 

 outer side with angular transverse ridges ; hind tibiEe with two rows of 

 stout testaceous black-tipped spines beneath. Wings extending rather 

 beyond the abdomen. Length of the body 16 lines ; expansion of the fore 

 wings 32 lines. 



a. South Africa. Presented by Sir A. Smith. 



6. Pamphagus sordidus. 



Mas. Piceus ; caput et prothorax scabra ; caput antice acutum margi- 

 natum; antenncB sublanceolatce ; prothorax utrinque foveolatus, 

 crista rotundata nan incisa, margine postica attenuala acuta ; pro- 

 sternum dente crassa obtusa ; femora postica supra spinosa. 



Male. Piceous. Head and prothorax scabrous. Head above flat, 

 with an elevated border which is rounded behind and forms an acute angle 

 in front, where it is continued in the two approximate keels which diverge 

 much towards the mouth. Eyes tawny, elliptical, transverse, prominent. 

 Antennae flat, slightly tapering, much shorter than the crest of the pro- 

 thorax. Prothorax with some large shallow excavations ou each side ; 

 crest rounded, smooth, continuous; hind part acute, much elongated. 

 Prosternum with an obtuse and very thick tooth. Hind femora armed with 

 stout spines above, disk on the outer side tessellated with ridges ; hind 

 tibiae with two equal rows of stout testaceous spines, which are piceous 

 towards the base and black at the tips. Wings rudimentary. Length of 

 the body 20 lines. 



The specimen described is not fully developed ; it differs widely from 

 the two preceding species in the shape of the crest. 



a. South Africa. Presented by Sir A. Smith. 



