IG Mr, D. Sharp on the Atlantic Species o/Tliilhydrus. 



3. PhUliydrus Wollastoni, n. sp. 



P. subovalis, sat convcxus, niti(lu8,pioco-iiiger, prothoracis clytrorum- 

 que limbo dilutiore, capite iniiculis cliiabus parvis ante oculos, 

 palpis autcniianinKiue basi testaccis, jiedibiis jncco-rufis ; capite 

 prothoraceciue crebre siibtilitcr, olytris parcius obsoletiusqiio 

 punctatis, liis seriebus tribus puuctorum majoruiu imjjressis. 



Long. 2^ lin. 



Inhahits tlic Cape -Verde arcliipelao^o, havinc; been tbund 

 by Messrs. WollastDU and Gray in the islands of S. Antonio, 

 S. Vieonte, S. lago, and Brava — in tlie lirst of wliicli it was 

 met witli likewise by Dr. 11. Dohrn. 



Var. /3 paulo brevior ot magis coiivexiis, colore dilutiore, palpis 

 paulo bre%'ioribus et crassioribus. 



Found in S. Antonio, tliis very slightly different form 

 being the one which is distinctive of that island. 



Nearly as large as the northern P. melanocephalus, but 

 darker and more uniform in colour, with its elytra sparingly 

 aiul much more indistinctly punctured, and with the claws 

 of its tarsi much smaller and scarcely differing in struc- 

 ture in the two sexes, — in which last respect it resembles 

 P. ovalis, Th., and manjineUus^ Fab., and differs decidedly 

 from P. polituSj Kiist., and maritimiis^^h.. 



4. Philhydrus hesperidiim, n. sp. 



P. obloiigo-ovalis, leviter convexus, nitidus, capite nigro, maculis 

 duabus parvis ante oculo.s, anteiinarum basi palpisquc testaceis, 

 his apice summo subinfuscato ; prothorace disco piceo-nigro, 

 marginibus testaceis ; elytris fusco-testaceis, parce obsoleteque 

 puiictatis, seriebus tribus punctorum majorum impressis ; pedibus 

 piceis, tarsis dilutioribus. 



Long, li-2 lin. 



Inhahits the Cape -Verde archipelago, having been detected 

 by Messrs. Wollaston and Gray in S. Antonio, S. Vicente, 

 S. lago, and Brava. 



Closely allied in form and appearance to the European P. 

 marf/inellusj but not quite so large as that species, and at once 

 distinguisliable from it by its very sparingly and obsoletely 

 punctured elytra. It pretty closely resembles P. Wollas- 

 toni; but its smaller size and more oblong form, as well aa 

 several differences in the details of its colour and ])unctation, 

 will suffice to distinj^uish it. 



