108 SERRICORNIA. [Ayriotes. 



A. Uneatus, L. (segrtis, Bjcrk.). Allied to the preceding, but 

 easily distinguished by its colour, the thorax being fuscous, and the 

 elytra having the interstices alternately yellowish-brown and dark brown, 

 giving the insect a lined appearance ; head thickly punctured, antennae 

 reddish-yellow ; thorax about as long as broad, closely and distinctly 

 punctured, but not so closely as in A. obscurus, with the posterior 

 angles sharp and keeled ; elytra broadest in middle, with punctured 

 striae which appear as if arranged in pairs, interstices finely punctured ; 

 legs brownish with femora darker. L. 8 mm. 



Uiider stones ; at roots of grass, &c. ; common and generally distributed throughout 

 the liroatcr part of England, but more local further north ; Scotland, local, Solway 

 and Forth districts ; Ireland, near Belfast and Dublin, and probably common. 



A. sordidus, 111. (ruftpalpis, Brull.). This species, in general 

 appearance, much resembles a very large dark example of A. sputator ; 

 apart, however, from its larger size, it may be known by the stronger 

 punctuation and more evidently transverse striation of the interstices of 

 the elytra, and by the darker colour of the legs and of the antennae, of 

 which the first joint is more or less fuscous, and the third joint is longer 

 proportionally ; from A. obscurus it may be known by its longer 

 thorax and more parallel shape, and from A. Uneatus by its colour, 

 and from both by the stronger sculpture of the elytra ; the posterior 

 coxae, moreover, are more strongly dilated internally. L. 8-9| mm. 



Sandy coasts and banks of rivers ; under stones ; also rarely in flood refuse ; very 

 local and usually rare ; Sheerness (taken in abundance during the early summer of 

 1874 by Mr. Champion and Mr. J. J. Walker) ; Chatham ; Strood ; Walton-on- 

 Thames ; Sunbury ; Lymington ; Isle of Wight ; Cowes, Isle of Wight, and Seaford, 

 Devon ( J. J. Walker) ; Weymouth ; Lancaster (Beston). 



A. sobrinus, Kies. (pallidulus, Kedt., nee 111. ; Adrastus acumi- 

 natus, Steph.). Elongate, rather depressed, with greyish pubescence; 

 head and thorax black, shining, posterior angles of the latter yellowish- 

 red ; elytra brownish-yellow, with the suture almost always distinctly 

 dark, and the base and side margins often infuscate ; head large, with 

 eyes rather prominent, somewhat strongly punctured, antennae long, 

 reddish-yellow with base often lighter ; thorax longer than broad, with 

 rather fine and not close punctuation, posterior angles sharp, keeled ; 

 scutellum elongate oval ; elytra slightly rounded at sides and gradually 

 narrowed to apex, rather plainly pubescent, with fine punctured 

 striae, interstices finely but distinctly punctured ; legs reddish-yellow. 

 L. 5|-6 mm. 



By beating and sweeping ; in woods, &c. ; rather local ; Chatham, Darcnth Wood, 

 Mickleham, Coombe Wood, Caterham ; Hastings ; New Forest ; Devon ; Bath ; 

 Midland districts, generally distributed ; York ; Northumberland district, not 

 common, Prudhoe, Gosforth, and banks of the Irthing ; not recorded from Scotland. 



A. pallidulus, 111. (umbrinus, Germ.) Very closely allied to the 

 preceding, but considerably smaller, with the elytra not so long pro- 



