92 Mr. T. V. Wollaston on the Colcoptcra of the Salvages. 



Fam. Helopidse. 



Genus Helops. 

 Fabricius, Syst. Ent. 257 (1775). 



9. Helops Leacocianus, Woll. 

 Helops Leacocianus, Woll., Ins. Mad. 517 (1854). 

 A single example was taken by Mr. Leacock on the ' Great Piton ' 

 in 1851. 



Fam. Blapsidse. 



Genus Blaps. 

 Fabricius, Syst. Ent. 254 (1775). 



10. Blaps gages, Linn. 



Tenebrio gages, Linn., Syst. Nat. ii. 676 [script, per err. gigas] (1767). 

 Blaps gages, Fab., Ent. Syst. i. 106 (1792). 

 , Woll., Ins. Mad. 508 (1854). 



Several specimens of the common Blaps gages have been lately 

 communicated by the Barao do Castello de Paiva, and were taken I 

 believe on the ' Great Salvage.' It is a tolerably common insect 

 both in the Madeiras and the Canaries. 



Fam. (Edemeridae. 



Genus Dityltjs. 

 Fischer de Waldh., Mem. de la Soc. de Nat. de Moscou, v. 469 (1817). 



11. Ditglus falvus, Woll. 

 Ditghts faints, Woll., Ins. Mad. 523 (1854). 

 A single specimen of this beautiful Ditglas was discovered by Mr. 

 Leacock on the ' Great Piton ' in the spring of 1851. For the 

 reason given under the Hegeter latebricola, I must decline at present 

 to pronounce for certain whether or not it is identical with the 

 D. concolor of Brulle, which I have recently captured in Grand 

 Canary, Teneriife, and Palma ; but my belief is, that a careful com- 

 parison will prove it to be conspecinc with that insect. 



Such arc the eleven species of Colcoptcra which have been hitherto 

 detected on these small and remote rocks ; and it is interesting to 

 remark, that they are each of them exponents of a separate genus, 



