184 



DYNASTID.E. 



525. Chasmatoptems nigrocinctus, 



Chasmatopterus nigrocinctus, Woll., Ins. Mad. 236 (1854). 

 1 Zd. } Cat. Mad. Col 81 (1857). 



Habitat Maderenses (Mad.), a cl. Heineken, M.D., olim eaptus ; an 

 ex alienis introductus ? 



As in the case of the Qyrinus natator, I cannot but feel a little 

 doubtful whether I ought any longer to admit this insect into the 

 Atlantic fauna, a single example from the collection of the late 

 Dr. Heineken, and which was taken by him many years ago in 

 Madeira proper, embodying all that I yet know concerning it. So 

 large a species, if really indigenous (or established) in the island, 

 could hardly have escaped the combined researches of so many 

 naturalists who have since (with such unwearied assiduity) toiled 

 over the same ground as that which Dr. Heineken investigated. 

 And although perhaps I cannot well refuse admission to the insect 

 in this Catalogue, I must nevertheless express my belief that it is 

 not truly Madeiran, but was more probably an accidental importation 

 from some other country. 



Fam. 34. DYNASTIDJE. 



Genus 163. PHYLLOGNATHUS. 



Eschscholtz, BttU. de Moscott, 65 (1830). 



526. Phyllognathus Silenus. 



Scarabaeus Silenus, Fab., Syst. Ent. i. 13 (1775). 



f Bndle, in Webb et Berth. (Col.) 60 (1838). 



Oryctes Silenus, Hart.) Geolog. Verhaltn. Lanz. und Fuert. 141. 

 Phyllognathus Silenus, Woll, Cat. Can. Col 201 (1864). 



Habitat Canarienses (Lanz., Fuert., Ten.'), sub recremento stabulorum 

 necnon sub stercore bovino, equino, camelino fodiens. 



An insect of Mediterranean latitudes* which occurs sparingly in 

 the Canarian archipelago, particularly in the eastern portion of it. 

 It is not very uncommon in Lanzarote and Fuerteventura, under 

 stable-refuse or burrowing beneath dung ; but I have not observed 

 it in any of the other islands. A specimen however, stated to be 

 Teneriffan, has been communicated by the Barao do Castello de Paiva. 

 In Lanzarote it is called " Chamorro" by the inhabitants. 



I have captured it at Mogadore, on the opposite coast of Morocco. 



