Ilomalium.'] staphtltnid^e. 413 



not since becu tiiken in tlio London district; it appears to be rather common in the 

 Liverpool district, Wallasey, New Brighton, Hoyhike, &c. ; it is also abundant at 

 Hartlepool ; Scotland, very rare, Doe district. 



H. laeviusculum, Gjll. Closely allied to H. rivulare, but distin- 

 guished by having the head and disc of thorax impunctate or almost 

 impunctate, the sides of the thorax even less dilated in front, and the 

 elytra more finely punctured ; in well-marked specimens the head and 

 disc of thorax are quite smooth and the elytra very finely punctured, 

 but in these characters the insect is somewhat variable, although, as a 

 rule, there is no difficulty in distinguishing the species ; varieties often 

 occur in which the thorax is reddish and the elytra reddish-brown ; 

 occasionally the whole body is reddish brown with the elytra lighter; 

 the sculpture of the elytra will, however, at once separate it from 

 H. rugidipenne, which these specimens somewhat resemble in colour. L. 

 3^-4 mm. 



In decaying sea-weed ; common all along the south-eastern and soutliern coasts, and 

 in the Isle of Wight ; Barmouth ; Lancashire coast ; Scarborough and Yorkshire 

 coawt ; Northumberland and Durham coast, common ; Scotland, on the coast, locitl, 

 but found as far north as the Shetland Islands ; not recorded as yet from Ireland, but 

 it is probably common : this species often occurs in company with the preceding, and 

 Lence mistakes are liable to arise. 



K. septentrionis, Tlioms. {impressum, Kr., languidum, Miikl.). 

 This species also is closely allied to H. rivulare, and may probably be 

 only a northern variety of that insect ; it differs in being much more 

 strongly and closely punctured, and less shining, with the elytra nar- 

 rower in proportion to tlie thorax, the sides of which are rounded ; the 

 five basal joints of the antennee are red, whereas in H. rivulare the first 

 or first two only are red, but the latter insect varies somewhat in this 

 respect ; from H. riparium it may be distinguished by its much stronger 

 punctuation. L. 3 mm. 



Very rare, Scotland, Highlands, Tay and Clyde districts; the species was first 

 recorded as British by Mr. Henderson (Ent. Monthly Mag. ii. p. 205), who took a 

 specimen in the Isle of Arran in August, 186i, and Dr. Sharp subsequently found it 

 among species taken by himself at Rannoch. 



H. riparium, Thoms. (impar, Eey). This is another of the close 

 allies of i/. rivulare ; it is on the average a little smaller, and may best 

 be distinguished by the shape of the thorax, which is not dilated in 

 front and has the sides almost straight to base ; the head is more spar- 

 ingly punctured, and the neck is alutaceous and scarcely at all punctured ; 

 the large foveas on thorax are deeper in front, and the disc is more spar- 

 ingly punctured ; the elytra are longer, pitchy black, and less strongly 

 punctured. L. 3-3| mm. 



In decaying sea-weed, under refuse, &c., on the shore ; rather local ; Sheeruess ; 

 Whitstable; Pegwell Bay; Isle of Wight; Weymouth; South Devon; AVallascy; 

 Cheshire; Manchester district ; Northumberland 'district, "plentiful on the sea-coast 

 amongst alga; " (Bold); Scotland, maritime, local, Clyde and Forth districts; Ire- 

 land, Waterford, and Newcastle co. Down. This species appears to be almost, if not 



