402 Mr. T. Vernon Wollaston on 



The present large and beautiful Mesilcs (whicli, so for as I have 

 hitherto observed, appears to be peculiar to the island of Palma), 

 may be known readily from the following one by its broader out- 

 line, more depressed, deeply sculptured surface, and darker hue. 

 Its prothorax is wider, and more rounded at the sides than is the 

 case in that insectj with its punctures considerably larger and 

 less dense, and its central keel more evident; whilst its elytral 

 strioe are much deeper, wider, and more coarsely crenated, and 

 the interstices proportionably narrower and more costate, or 

 convex. 1 took it, not uncommonly, beneath the loose outer 

 bark of the native laurels, in the dense sylvan ravines of Palma, 

 at rather a high elevation, especially the Barranco da Agua and 

 the Barranco de Galga, — during my residence in that island, with 

 the Rev. R. T. Lowe, in May and June of 1858. 



S5. Mesiles i^ershnUis, n. sp. 

 M. piceus vel rufo-piceus, sub-depressus, fere calvus ; fronte 

 inter oculos profunde longitudinaiiter foveolatd ; prothorace 

 sat profunde et creberrime punctato, obscure carinato necnon 

 postice in medio impresso, ad latera minus rotundato-am- 

 pliato ; elytris sat profunde crenato-striatis, interstitiis paulo 

 convexis ; antennis pedibusque rufcscentioribus. 

 Mas.— -Rostro elongate, punctulato, ad antennarum insertionem 

 paulo rotundato-ampliato. 



Foem. — Rostro breviore, graciliore, tereti, polito, rufo-piceo, ad 

 antennarum insertionem (i. e. mox ante basin ipsam) paulo am- 

 pliato. 



Long. corp. lin. 2g — 5. 



Habitat in locis similibus ac prsecedens, sed in ins. Teneriffa 

 (nee Palmd). 



The M. pcrsbnilis, which abounds in certain spots vvitliin the 

 sylvan regions of Teneriffe, is narrower, less depressed, more 

 piceous, and (on the average) rather smaller than its Palman re- 

 presentative ; its prothorax, also, is less rounded, or widened at 

 the sides, more closely and less deeply punctured, and with its 

 central keel less distinct ; wliilst its elytra have their strias very 

 much narrower and less deeply crenated and their interstices 

 (proportionably) broader and less convex. 



Both the present Mes'ites and the last one belong more par- 

 ticularly to the same type as the M. maderensis and the British 

 M. Tarda ; and, indeed, the persimilis is very closely allied to the 

 former, — with which I had at first imagined it to be identical. It 

 may, however, be at once known from it through its almost 



