30 Mr. C. J. Gahan on Longicorn CoJeoptera 



Pachydissus {Margites) hurnilis (Clievr., MS.), sp. n. 



Fuscus : prothorace su])ra et lateraliter punetato-rugoso, pube grisea 

 plagiatim disposita ; lateribus leviter et subsequaliter rotundatis ; 

 elytris piceo-rufis, ruguloso-punctatis, pube cervina vel griseo- 

 fulva dense obtectis ; apicibus subtruncato-rotundatis, inermibus ; 

 pedibus autennisque piceo-rufis, illis ruguloso-punctatis, leviter 

 pubescentibus, his ( J ) corpore paullo longioribus, articulis a primo 

 ad quintum subaxiualibus, ceteris gradatim cresceutibus, articulis 

 tertio et quarto crassatis, subcylindricis. 



Long. 14-15, lat. 3g mm. 



Hah. Senegal. 



This species may be easily distingulslied from P. egenun or 

 P. fulvidus by the move evenly rounded sitles of the ))ro- 

 thorax, the greatest width of the latter being just behind the 

 middle, and by the relatively narrower elytra. The antenna) 

 in the male are shorter than in P. egenus, with the third and 

 fourth joints much less strongly thickened. 



In one (female) specimen the pubescence of the elytra ia 

 fawn-coloured and somewhat glossy ; in the other two (in 

 Mr. Fry^s collection) it is dull and grey or fulvous ; but in 

 these I believe that it is faded. 



Pachydissus [Derolus) demissus^ Pasc. 



? Cernmbyx vulvuhts, Fabr. Syst. Eleuth. ii. p. 271. 

 Ilamaticherus volvulus, Uej. Cat. 



Piceus, griseo tenuiter pubescens ; oculis magnis, supra ( J ) fere 

 contiguis ; prothorace lateribus in medio rotuudatis singulisque 

 spatio angusto exciso, glabro ; dorso transversim plicato, in medio 

 raro levi ; elytris tenuiter sat denseque puuctulatis, subtilitcr 

 pubescentibus; apicibus subtruncatis, inermibus; processu antero- 

 laterali metasterni distincto ; antcnnis( J) corpore paulJo longio- 

 ribus, subserratis, articulis tertio et quarto apice leviter nodosis, 

 quarto (]uam tertio paullo breviore. 



Long. 15-17, lat. 4-4^ mm. 



Ilah. India (Tranquebar, Nilghiris, Silhet), Philippines, 

 and Cliina. 



This species was included by Mr. Pascoe in his proposed 

 genus Maryites, but it seems better placed in Section C of the 

 preceding arrangement. The species is quoted by Dejean in 

 liis Catalogue as the Ceramhyx volvulus of Fabr., and it cer- 

 tainly agrees very well with Fabricius's description. 



Pachydissus [Derolus) arciferus (Chevr., MS.), sp. n. 

 Niger, griseo-pubescens ; capite supra inter oculos sat distincto 



