the Atlantic Cossoiddes. 397 



served in more than a single island-group. A solitary sj)ccimcn 

 of it was taken by myself, in a liouse at Orotava, in the north of 

 I'encrit^e, during March, 1857; and many more were captured 

 by Sr. Moniz, in Madeira, during the spring of 1858, — from out 

 of old boards lying on the damp earth in his garden at Funchal. 



31. Mcsoxcmis Bewickianus, Woll. (PI. 19, fig. 6) 



Pcntarlhmm Bcwickianum, Woll., Ann. of Nat. Hist. (Scr. 3), 

 V. 451 (18G0). 



Ilnh'ilai Madcram australeni, in ligno antiquo a Dom. Bcwicke 

 repertus. 



Likewise very scarce, — or, at any rate, extremely local; and 

 hitherto found only by Mr. Bewicke, amongst rotten wood in a 

 small shed, or out-house, at the Praia Formosa, near Funchal. 



Genus Pkntaktiirum. (PI. 19, fig. 5.) 

 \Yoll., Ann. of Nat. Hist. (Scr. 2), xiv. 129 (1851). 



'["he genus I'cnlartlirum was established by myself, in 1851, for 

 the reception of a small weevil discovered by my nephew, the 

 Rev. H. \V. Hntton, during the previous year, in Devonshire ; 

 and, with the exception of Mkroxijloh'tus, it was the first true 

 member of the Cossonidcs in which less tluin seven funiculus-joints 

 had been observed. Since then, however, I have mysell de- 

 scribed four other Cossonideous genera, in which the articulations 

 of this portion of the antennae are numerically reduced, — namely, 

 Hexarihrum and Oiiychol'ips, in which the number of joints are 

 six ; and Pentatcmnus and Mcsoxcnns, in wliich it is five ; so that, 

 up to the present date, tliere are four known groups oi' this su!)- 

 family w!;icli possess a 5-jointcd funiculus, — i.e., M'lcrvxijluhius 

 (from St. Helena), Penldtenmus (i\om the Canary Islands), I\/c- 

 soxeniis (from Madeira and the Canaries), and Penlaiihnnn (from 

 the south-west of England and Ascension). 



As already stated (in my observations under the preceding 

 genus), the recent detection by Mr. Bewicke, at Ascension, of a 

 new Pcnlaii/irnni, has so completely confirmed my original diag- 

 nosis of the group (proving, amongst other important particulars, 

 that the antenna are in both sexes strictly medial), that it is impos- 

 sible to include under it any longer the two curious Madeiran 

 beetles which (from a dislike to multiplying genera) I had charac- 

 terized last year (in the " Annals of Natural History") as aberrant 

 Penlarthra, under the respective titles of P. Monizianum and 

 Dewickianum ; and I have consequently just proposed for these 



