292 Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 



Fam. Histeridss. 



Genus Eutriptus. 



Wollaston, Trans. Ent. Soc. Load. ser. 3. i. 157 (1862). 



The addition of the present genus to our Catalogue, through 

 the recent researches of Mr. Bewicke, is a most important one, 

 as supplying another link of union between Madeira and the 

 Canaries, and* that, too, in a most significant manner — through 

 their Euphorbian faunae. The little insect for the reception of 

 which I lately established the group, I believe to be universal, in 

 decayed Euphorbia-stems, throughout the Canarian archipelago, 

 though hitherto I happen to have met with it in only five out of 

 the seven islands ; and it is interesting therefore to find it, under 

 precisely similar circumstances, at Madeira also. After com- 

 piling its generic diagnosis, in my paper above alluded to, I 

 stated that " amongst the forty-four groups of the Histeridce so 

 elaborately enunciated in De Marseul's Monograph, there is 

 certainly nothing which approaches the present one in its most 

 distinctive features. Indeed, its 6-jointed funiculus would of 

 itself suffice to characterize it ; for the only known form in which 

 this particular number of joints (or, in fact, less than seven) pre- 

 vails, in that portion of the antennae, is Monoplius (of which 

 hitherto but a single exponent has been detected), from the Cape 

 of Good Hope — an insect widely different from Eutriptus in the 

 other details of its structure. Its various peculiarities will be 

 easily gathered from the diagnosis ; nevertheless I may just add 

 that its two most anomalous ones (apart from its funiculus) are 

 the formation of its inner maxillary lobe and of its anterior tibia, 

 the former of which is curiously uncinated at its apex (the outer 

 margin being thickened into a narrow rim, which merges into 

 an obtusely curved hook at the tip), whilst the latter has its 

 inner apical angle produced into a long and acute spine, which, 

 being outwardly directed, gives that portion of the leg a very 

 singular appearance." 



5. Eutriptus putricola. 



E. cylindrico-oblongus, subconvexus, aterrimus, politissimus ; capite 

 prothoraceque minutissime et obsolete punctulatis ; elytro utroque 

 striis duabus obscuris humeralibus obliquis, duabus sublateralibus 

 integris, quatuor levioribus discalibus interrupts remote punctatis 

 plus minus obsoletis et una suturali antice evanescenti notato ; 

 antennis testaceis, ad basin pedibusque piceis. 



Long. corp. lin. 1-1£. 



Habitat Maderam, rarissimus ; in ramis Euphorbiarum emortuis 



