48(51 Insects. 



33. H. memnonius, Nicolai, Erich., Aube, Steph. H. subelongatus, 

 Sleph. $. H. marginatus, Steph. $ immature, not Dufts., Aube. 

 H. deplanatus, Steph. 2, not GylL, Aube. H. niger, Sturm cf. 

 H. jugularis, Bab. $ ?. H. castaneus, Aube ?. Long. 4; larg. 2. 

 Abundant occasionally : Southend; near Peterborough ; Whittlesea; 

 near Loudon ; Daventry, Newcastle ; Raehills, Dollar, Kinross-shire, 

 Tweed. 



34. H. Gyllenhalii, Schiodte. H. rufifrons, Steph., not Dufts. 

 H. piceus, Aube, not Steph., Sturm or Erichson. Long. 4; larg. 2. 

 Occasionally throughout the country, more abundantly in the northern 

 counties; common in Can tyre; Dalmeny, Rev. TV. Little. 



(H. incertus, Dej. Long. 4 ; larg. 2. Size and form of H. Gyllen- 

 halii, which it closely resembles, and of which it may be but a variety ; 

 it is, however, rather more depressed, deeper black, more brilliant, 

 more finely punctured, elytra with two longitudinal lines of points; 

 sides of thorax not so full and rounded, more oblique. France and 

 South Europe.) 



35. H. tristis, Payk., GylL, Sturm, Erich., Aube. Long. 3| ; larg. ]f . 

 This species, of which Schaum found but two examples in Stephens's 

 collection, is generally distributed, though somewhat local and rare : 

 I have taken it in Lancashire; in Argyleshire; in Mull; " not common 

 near Prestwick Carr," Mr. Bold: it seems to affect especially peaty 

 soils on moors and sides of mountains. 



36. H. elongatulus, Sturm. Long. 3j. Closely allied to H. tristis, 

 but differs from it by its more compressed, less oval form, elytra 

 rounded at sides, more distinctly pubescent, thorax somewhat nar- 

 rower;* appears to vary very considerably in size. This species was 

 first detected by my friend Mr. Wollaston, who took a few specimens 

 on Midgley Moor, Yorkshire : I have taken it since in Derbyshire, and 

 previously in Scotland. It is not an uncommon species. 



(H. striola, GylL Long. 3i ; larg. If. Of somewhat the form of 

 H. tristis, more depressed, more finely punctuate, and distinguishable 

 by the colour of the elytra ; thorax as in H. tristis. Elytra of H. tristis, 

 according to Aube, are "castaneo-brunnea," " d'un brim ferrugineux ;" 

 of II. striola " fusco-brunnea," " brunnatres ;" the latter has a trans- 

 verse fascia at base of elytra, and exterior lateral band of dark brown ; 

 within this band is a dark longitudinal spot near the centre. France, 

 Germany, Sweden.) 



* According to Fairmaire, the colour is dark brown or brown: this is the case in 

 some of my examples, but in the majority il is deep black. 



