PTINID.E. 217 



The only example of this SpJwericus which I have yet seen was 

 taken by myself many years ago in Madeira proper ; and although 

 the small characters alluded to in my diagnosis seem perhaps sufficient 

 (if constant) to indicate it as a distinct species, nevertheless I cannot 

 but feel that further material is greatly required in order to ascertain 

 for certain that the S. pilula is no depauperated modification of the 

 (very variable) albopictus. 



614. Sphaericus ambiguus. 



Sphsericus ambiguus, Wall, Append, huj. op. 33. 

 Habitat Maderenses (Mad.), a Dom. Bewicke olim repertus. 



Found by the late Mr. Bewicke in Madeira proper ; but I have no 

 means now of ascertaining its precise locality. It is a good deal 

 allied to the albopictus ; nevertheless I believe that it possesses too 

 many features of its own to admit of its being regarded as any largely 

 developed, coarsely sculptured, thick-limbed state of that species. 



615. Sphaericus gibbicollis. 



Spha3ricus gibbicollis, Woll., Trans. Ent. Soc. Lond. i. 208 (1862). 

 , Id,, Cat. Can. Col. 241 (1864). 



Habitat Canarienses (Lanz., Fuert.}, in intermediis rarissimus. 



Observed hitherto only in Lanzarote and Fuerteventura, the two 

 eastern islands of the Canarian Group, where it occurs sparingly at 

 intermediate elevations. 



616. Sphaericus pinguis. 



Ptinus pinguis, Woll., Ins. Mad. 264 (1854). 

 , Id., Cat. Mad. Col. 90 (1857). 



Habitat Maderenses (Mad.), rarissimus ; prsecipue in subinferioribus 

 occurrens. 



Occurs sparingly in Madeira proper, principally at rather low ele- 

 vations ; but it has not yet been detected elsewhere. 



617. Sphsericus impunctipennis. 



Sphaericus impunctipennis, Woll., Cat. Can. Col. 241 (1864). 

 Habitat Canarienses (Gom.), a W. D. Crotch, M.D., parce captus. 



Detected by Dr. Crotch (during the spring of 1862) in Gomera, 



