90 Mr. T. V. Wollaston on the Colcoptera of the Salvages. 



Fam. Curculionidae. 



Genus Acalles. 



Schonherr, Cure. Disp. Moth. 295 (1826). 



5. Acalles Neptunus, Woll. 

 Acalles Neptunus, Woll., Ins. Mad. 330 (1854). 

 A fine series of this noble Acalles was captured by Mr. Lcacock, 

 on the 'Great Piton,' during the spring of 1851. It is somewhat 

 allied to the Canarian A. argilhsus, Schonh. (of which I possess 

 several specimens, collected at Taganana and Orotava, in the north 

 of Tcncriffc), — though much larger than, and perfectly distinct spe- 

 cifically from, that insect. 



Fam. Lamiadse. 



Genus Deucalion. 



Wollaston, Ins. Mad. 430 (1854). 



6. Deucalion oceanicus, Woll. 



Deucalion oceanicus, Woll., Ins. Mad. 433 (1854). 



The D. oceanicus is also due to the researches of Mr. Leacock, who 

 secured a fine series of it (now in the Collection of the British 

 Museum) on the ' Great Piton,' in 1851. It is a most interesting 

 insect, as representing a group of which three* remarkably distinct 

 exponents have been hitherto brought to light, — viz., one in the 

 Madeiras, the Salvages, and the Canaries, respectively. The genus 

 was established in the ' Insccta Madercnsia,' in 1854, to receive a 

 very rare and anomalous Longicorn detected by myself on the extreme 

 summit of the Dezcrta Grande during January of 1859, and subse- 

 quently by the Rev. R. T. Lowe and myself on the top of the almost 

 inaccessible Southern Dezerta, or ' Bugio '; so that Mr. Leacock 's 

 capture on the Salvages, of a kindred species, became at once a very 

 significant and suggestive one. It is, however, rendered still more 



* I ought perhaps to say four, instead of tliree, — for a single (very old and 

 imperfect) example of an additional species, closely allied to the Dezertan one, 

 is in the collection of F. P. Pascoe, Esq. ; but from what country il came, lie is 

 unable to state. If therefore it should turn out eventually to be likewise a 

 native of one or the other of these Atlantic islands (which I cannot but regard 

 as probable), we should have another confirmation of the geographical exclusive- 

 ncss of this curious Eueeratic group. Another insect, from Lord Howe's Island, 

 in the South Pacific, has been described and figured by Mr. White, in the ' Pro- 

 ceed inga of the Zoological Society,' under the name of Deucalion Wollastoni, 

 but this belongs to a different, although nearly allied genus. 



