Heterocerus.'\ clavicoknia. 385 



2. Form narrower and less oval, rather convex; general 



colour lighter H. maeginattts, F. 



\\. Upper surface clothed with fine and short pubescence, 

 not intermingled with hairs of auother character. 



1. Size larger, pubescence lighter H. ljevigatus, Panz. 



2. Size smaller, pubescence darker H. fuscultts, Kies. 



III. Posterior angles of thorax very finely bordered ; elytra 



usually reddish with obsolete markings ; size very small, 



length 2-2J mm - . H. sericans, Kies. 



(H. fossor, Kies. {rectus, Wat.). Oblong, rather convex, thickly 

 clothed ^vith short pale pubescence^ which is thicker and yellowish on 

 the head and front part of thorax ; antennre yellow with club some- 

 times darker ; thorax as broad as elytra, thickly and finely punctured^ 

 black, with the anterior angles and sometimes the whole sides yellow, 

 posterior angles not margined ; elytra closely and finely punctured with 

 the epipleurse, a spot at base, two bands one before and one behind 

 middle, and spots at apex, yellow ; legs yellow with the base of the 

 tibia; and in male also the base and apex of femora blackish. L. 4-^- 

 5 1 mm. 



"Male with the clypeus furnished with a transverse raised tubercle, 

 and the mandibles elongate. 



Very rare, and somewhat doubtfully indigenous ; Mr. Waterhouse described his 

 JI. rectus, which appears to be identical with R. fossor, on ten specimens from North 

 Wales, supposed to have been taken by the Rev. F. W. Hope, and it has been doubt- 

 fully recorded from Weymouth and Deal.) 



H. femoralis, Kies. {flexuosus, Steph.). Oblong, black, clothed 

 with griseous pubescence, which is whiter and thicker on the head and 

 sides of thorax, and on the elytra is mixed with longer hairs ; thorax 

 very transverse, broader than elytra in male, as broad as elytra in 

 female, with the posterior angles not margined, and the anterior angles 

 and rarely the sides yellow ; elytra unevenly and finely punctured, with 

 markings much as in the preceding species ; legs black, anterior femora 

 yellowish-testaceous. L. 3|-4| mm. 



Male with the clypeus simple, and with the head and thorax larger 

 than in female. 



Banks of ponds and ditches ; not common ; Sheerness ; Gravesend ; Deal ; 

 Hastings; Brighton; Weymouth; Exmouth ; Wales (Hamlet Clark) ; Hunstanton; 

 Cleethorpes, Lincolnshire; Manchester; Preston Marsh, Lancashire; Lancaster; 

 Scotland, local, Solway and Forth districts ; Ireland, Baidoyle : the species appears 

 to be chiefly maiitime. 



Closely allied to the preceding, from which it differs in the character 

 of its punctuation and pubescence, its darker colour, and-the tubercle 

 on the clypeus of the male ; the colour of the legs is a misleading 

 character, as in immature specimens they are quite light. 



(H. arenarius, Kies. This species appears to be very closely allied 

 to the preceding, and to be chiefly distinguished by being of a browner 



VOL. III. c c 



