Mr. T. V. Wollaston on the Coleoptera of the Salvages. 89 



forms, — foiu- or five of which I have taken in the various islands of 

 the Canarian archii^elago, whilst another, the H. vividus (if, indeed, 

 that insect be not in reality separable into more than a single 

 species), is universal throughout the Madeiran group. After a very 

 careful comparison of the H. pelagicus with all the Harjiali as yet 

 detected both in the Madeiras and the Canaries, I am perfectly satis- 

 fied that it cannot be referred to any of them ; though it has a 

 greater affinity, perhaps, with those of the latter islands than with 

 those of the former. Apart from minor characteristics, it difiers 

 from them all in being rather broader throughout, as well as in the 

 shape of its prothorax, which is Avide, transverse and convex, and 

 entirely unconstrkted posteriorly (though a little narrower behind 

 than before), — its edges being in a continuous curve, and with its 

 angles therefore more obtuse than is the case in the allied species. 

 Its elytra, also, have their shoulders less porrected or acute (the 

 thickened line between the extreme apex of each humeral angle and 

 the scutellum being almost straight) ; and their striae are much more 

 perceptibly (though minutely) crenulated, and "s\dth the abbreviated 

 second one longer than in any of the allied forms, and moreover 

 completely joining the sutm-al one at a very considerable distance 

 behind the scutellum. Three specimens of it have been lately com- 

 municated by the Barao do Castello de Paiva, to whose kindness I 

 am indebted for the other novelties described in this memoir. 



Fam. Sphseridiadae. 



Genus Cercton. 

 Leach, Zool. Miscell. iii. 95 (1817). 



4. Cercyon centrimaculatum, Stm-m. 



Sphceridtum centrhnactdatimi, Sturm, Deutsch. Fna, ii. 23 (1807). 



pygmcmm, Gyll., Ins. Suec. i. 104. var. b (1808). 



Cercyon centrimaculatum, WoU., Ins. Mad. 104 (1854). 



A single example of the common European C. centrimaculatum 

 was lately communicated (along with the three preceding insects 

 and the Blaps gages) by the Barao do CasteUo de Paiva, as coming 

 fi-om the Salvages. It is not a very important addition to the fauna, 

 — for, being somewhat abundant both at the Madeiras and Canaries, 

 the species may have been accidentally naturalized thpough the in- 

 strumentahty of the boats, which proceed there almost every year 

 for the piu-pose of collecting orchil and shooting gulls. 



