452 CANARIAN COLEOPTERA. 



This is not only the largest of aU the known Hegeters, but by far 

 the most Avidcly spread. Indeed it is a remarkable fact that whilst 

 nearly aU the others are extremely local, partaking more (as it were) 

 of the character of races, the present one occurs in the whole of these 

 Atlantic Groups — having been detected in the Azores, Madeiras, 

 Canaries, and the Cape de Verdes, as weU as, also, on the northern 

 and western coasts of Africa. Throughout the Canarian archipelago 

 it is universal, in the whole seven islands of which I have myself 

 captiu'ed it, except Fuerteventura and Gomera ; but from the former 

 it has been communicated, in profusion, by the Barao do Castello de 

 Paiva, who obtained it sparingly from the latter also (where it was 

 likewise met with, during the spring of 1862, by Dr. Crotch). 



Apart from its much larger bulk, the H. tristis may be recognized 

 by its comparatively sulcated, elliptic elytra, and by the hinder angles 

 of its subquadrate prothorax being almost right angles. Its surface, 

 particularly of the head and prothorax, is more or less ojiake, and so 

 minutely punctulated that the punctules are often scarcely traceable 

 even beneath a high magnifying power. In a living state it is fre- 

 quently clothed with a didl bluish-white, or lead-coloured, bloom 

 (which however is soon destroyed) — a peculiarity to which, although 

 I had often noticed it, my attention has lately been directed by Mr. 

 Bewicke, of Madeira. 



688, Hegeter Webbianus. 



H. praecedenti simUis et ab iUo (nisi fallor) vix distinctus, sed minor, 

 punctulis etiam magis indistinctis (oculo etiam fortissimo armato 

 aegre discernendis), ergo quasi impunctatus ; prothorace per basin 

 paulo magis bisinuato, angulis posticis sensim acutioribus (ncc 

 subrectis); antennis pedib usque (praesertim tarsis) subgracihoribus, 

 tibiis anticis minus evidenter serratulis. — Long. corp. lin. 4-5. 



Hegeter Webbianus, Heinehcn, Zool. Jmirn. v. 40 (1835). 



Habitat montes Canaritc Grandis, in regione " Tarajana " captus : 

 etiam TenerifFam apud cl. Heineken colore dicitur. 



I scarcely think that this Hegeter is more than a race, or state, of 

 the tristis ; and certainly, had it been unpublished, I should not my- 

 self have treated it as anything more important ; nevertheless, as I 

 have little doubt that it is the particular form which Dr. Heineken 

 described as the H Webbianus, I am unwiUing to cancel the name 

 which he imposed upon it. It differs from the tristis, merely, in 

 being smaller and (if anything) even more indistinctly punctulated 

 still (the punctules being so barely traceable, even beneath a high 

 magnifying power, that the surface might well be defined as " im- 



