194 ADEPHAGA, [Agcibus. 



femora, testaceous ; the sculpture of the male and female differs very 

 little, but the female has the base of the elytra very minutely and 

 finely reticulate or coriaceous. Long. 8|, lat. 4^ mm. 



Common and widely distributed throughout Great Britain and Ireland ; it is found 

 in stagnant water. 



A. conspersus, jSFarsh. This species closely resembles the pre- 

 ceding, but is rather smaller, and may at once be distinguished from 

 ordinary specimens of A. nehulosus by the absence of the two spots on 

 disc of thorax ; from those specimens in which the spots are obsolete 

 it may at once be separated by the colour of the femora, which are 

 always more or less broadly fuscous ; the sculpture of the female is ex- 

 tremely variable, sometimes being as in male, Avhereas forms occur in 

 which the close and fine reticulation gives the insect a verj^ dull and 

 opaque appearance ; between the extreme forms various intermediate 

 gradations occur. Long. 8, lat. 4^ mm. 



A maritime species, found usually near the coast in brackish ponds and ditches ; 

 widely distributed, and by no means uncommon, although rather local; it appears to 

 get rare in the north of England, and is not recorded from the Northumberland 

 district ; in Scotland it occurs near the sea in the Forth and Solway districts, where it 

 is local. 



A. striolatus, G!-yll. Oblong oval, somewhat elongate and narrow, 

 black, rather dull, with antennas and legs red ; upper side plainly re- 

 ticulate, the meshes of the reticulation being distinctly longitudinal ; 

 thorax with the posterior angles obtuse ; sculpture of sexes similar ; 

 male with the three basal joints of the front and middle tarsi a little 

 thickened and furnished beneath with the usual glandular hairs. Long. 

 7, lat. 4 mm. 



Very rare ; has only been taken in Horning Fen, Norfolk (chiefly by Mr. Laundy 

 Browne), and hag not occurred for many years ; it is a rare species on the Continent, 

 although extending- from Finland to the basin of the Seine. 



Group XIV. 



Hind coxpe large with acutely arched upper border, wings of meta- 

 sternum very slender ; prosternal process rather small ; legs rather slender ; 

 male front tarsi but little thickened, 



A. femoralis, Payk. Oval, rather depressed, bronze black, shining, 

 with the front of head, two more or less obscure spots on vertex, and 

 margins of thorax and elytra rufescent ; antennae and legs red, the former 

 darker, as a rule, towards apex ; elytra very finely reticulate and plainly 

 punctured besides the irregular rows of larger punctures ; thorax with 

 broad lateral margin ; underside of thorax brown-red, breast and abdo- 

 men black, hinder segments of the latter more or less reddish behind ; 

 male with front and middle tarsi slightly thickened ; sculpture the same 

 ill both sexes. Long. 6, lat. 3| mm. 



Ponds, &c. ; local and not common ; Wimbledon, Woking, Walthamstow ; Bound- 



