r<>i/noch(rrus.] LONGICORNIA. 247 



P. bidentatus, Thorns. (fii."/>idns t Laich. et Brit. Cat.). Fuscous, 

 - ;ited with white and lighter or darker brown pubescence ; antennae 

 with the base of the joints white ; thorax with a tubercle on each side 

 i >f disc and a spine on either margin ; elytra narrowed to apex, which is 

 broad and bidentate, the tooth at sutural angle being short and blunt, 

 and that at external angle long, sharp, and spinoee ; scutellum clothed 

 with white pubescence ; at the base of the elytra there is a conspicuous 

 broad band of white pubescence, a little clouded at shoulder and in 

 middle, extending from base over nearly half their surface ; between this 

 and apex there are several black spots or fascicles of hair; legs dark, 

 variegated with red, more or less pubescent. L. 5-6 mm. 



In dead hedges, under bark of apple and penr tree?, Ac. ; local, but not uncommon 

 iu many districts; Darenth Wood, Lee, Faversham, Forest Hill, Croydon, Mickle- 

 luuii, Esher, Chatham, Whitstable ; Deal ; Huntings ; Portsmouth district ; Olanvilles 

 Wootton ; Devon; Sw.-msea ; Llangollen ; Bewdley; Tewkesbury ; Bromsgrove; 

 Birmingham district; Bepton ; Cheshire; York; Scarborough; Liverpool; North- 

 umberland and Durham district ; Scotland, very rare, and perhaps not indigenous, 

 Forth and Moray districts (Sharp) ; Ireland (Huliday). 



P. dentatus, Fourc. (pilosits, F. ; hispidus, Schrank.). Smaller 

 than the two preceding species, fuscous brown, variegated with brownish- 

 white pubescence, of which there is a large curved fascia near base, 

 leaving the part around scutellum usually dark ; behind this there are 

 several black fascicles of hair ; the species may easily be known by 

 having the sutural angle of elytra simple and the external angle pro- 

 duced into a distinct spine ; the elytra are narrower than in P. bidtntatu*, 

 and the pubescence at base is much browner and less conspicuous ; in 

 the male the fifth ventral segment of the abdomen is truncate, and 

 lather strongly impressed with a round fovea before apex ; in the female 

 the fifth ventral segment is rounded at apex. L. 4-5 mm. 



In hazel twigs, old ivy, crab trees, old hedges, Ac. ; not uncommon and generally 

 distributed in the London district and the South ; Swansea ; Llangollen ; Coleshill ; 

 Knowle; Trench Woods; Bircbnm Newton, Norfolk; Hepton ; Yorkshire ; Bowdoii, 

 near Manchester; Northumberland and Durham district, near Gilsland, on oak 

 hurdles, rare ; Scotland, very rare, if indigenous, Sol way district ; Ireland, near 

 Dublin. 



Between the preceding genera and those that follow there intervenes 

 the large and extensive genus Dorcadion, Dal., which contains upwards 

 of two hundred species that occur exclusively in Northern and Central 

 Asia and in Europe ; there are no fewer than eighty-six found in the 

 latter continent, and in point of numbers it is the most important of the 

 European genera belonging to the Longicornia ; the genus, however, is 

 not represented in Britain, nor apparently in Scandinavia, although a 

 fair number occur in Siberia and Russia ; a single specimen of D. fuligi- 

 itator was once found in the Tay district of Scotland, creeping over wi-t 

 seaweed in St. Andrew's Bay, but it was evidently an importation, and 

 \\a.- probably introduced in ballast. They are rather stout and robust 



