108 SERRICORNIA. [ Ayriotes. 
A. lineatus, L. (segetis, Bjerk.). 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, antennz 
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 
strie which appear as if arranged in pairs, interstices finely punctured ; 
legs brownish with femora darker. L. 8 mm. 
Under stones; at roots of grass, &c.; common and generally distributed throughout 
the greater part of England, but more local further north; Scotland, local, Solway 
and Forth districts; Ireland, near Belfast and Dublin, and probably common, 
A. sordidus, Ill. (rujipalpis, 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 antenna, of 
which the first joint is more or less fusecous, and the third joint is longer 
proportionally ; from A. obscwrus it may be known by its longer 
thorax and more parallel shape, and from A. lineatus by its colour, 
and from both by the stronger sculpture of the elytra ; the posterior 
cox, 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 (Reston). 
A. sobrinus, Kies. (pallidulus, Redt., nec Ill. ; 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, antenne 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 
strie, interstices finely but distinetly punctured ; legs reddish-yellow. 
L, 53-6 mm. 
By beating and sweeping ; in woods, &c.; rather local; Chatham, Darenth 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, II]. (wmrinus, Germ.) Very closely allied to the 
preceding, but considerably smaller, with the elytra not so long pro- 
