176 Mr. T. Vernon Wollaston on the Enphorliia-infesihig 



being rather less straightened than is the case in most of its allies, 

 and by the third joint of its feet being very distinctly expanded 

 and bilobed. It abounds in the dead Euphorbia-stems of Lanza- 

 rote and Fuerteventura, having a just perceptibly different phasis 

 (indicated above) for either island ; but 1 have not yet observed 

 it in any other part of the Canarian archipelago. 



Genus Mesttes. 

 Schonherr, Gen. et Spec. Cure. iv. 1043 (1838). 

 32. Mesites fusiformisj* Woll. 



ilf. nigro-piceus, nitidus, depressus, fere calvus ; fronte inter 

 oculos profunde foveolata ; prothorace in disco levissime et 

 parce punctulato, sat obscure carinato necnon postice in medio 

 impresso et ibidem profunde sub-biseriatim punctato ; elytris 

 plus minus rufescentioribus, postice attenuatis, profunde 

 punctato-striatis, interstitiis planiusculis, minutissime et parce 

 punctulatis ; antennis pedibusque rufescentioribus. 



Mas, rostro punctulato, ad antennarum insertionem paulo ro- 

 tundato-ampliato ; prothorace versus latera vix profundius 

 densiusque punctato ; femoribus subtus subdentatis. 



Fcem., rostro graciliore, tereti, polito, rufo-piceo, ad anten- 

 narum insertionem (i. e.mox ante basin ipsam) paulo ampliato; 

 prothorace versus latera multo profundius densiusque punc- 

 tato ; femoribus subtus muticis. 



Long. corp. lin. \\ — 3. 



Mesites fusiformis, Woll., Trans. Ent. Soc. Lond. (New Series), 

 V. 405, pi. 19, f. 7 et 9 (1861). 



Habitat insidas Canarienses, in Euphorbiis emortuis ubique vul- 

 garis. 



The M. fusiformis is a most abundant insect, in the decayed 

 Euphorbia-stems, throughout the Canarian archipelago, — Palma 

 being the only island in which, up to the present time, I do not 

 happen to have observed it ; though there can be but little doubt, 

 I should imagine, that it must exist there also. Nevertheless it 

 is certainly somewhat remarkable that the few specimens of Mesites 

 which I chanced to take in that island from out of the decayed 

 Euphorbias should have belonged to another, but closely allied, 

 species. Full observations on its diagnostic characters are given 

 in my memoir on the '^ Atlantic Cossonides" above referred to. 



