374 RHYNCHOPHORA. [ Eubrychius. 
by M. Ferris forming a cocoon on M. spicatum; very local, and not common; 
London district rare, Woking, &c.; Aylsham, Norfolk; Wicken Fen; Swaffham ; 
Whitstable ; Birchington ; Pegwell Bay ; Deal; Rye; Arundel; Old Trent, Repton ; 
Cleethorpes, Lincolnshire ; Wallasey, Cheshire (one specimen) ; Newcastle ; Rothley 
Lakes, Northumberland. 
LITODACTYLUS, Redtenbacher. 
Two species belong to this genus, one from Europe and one from 
Ceylon; they differ from Hubrychius, which they very closely resemble 
in habits, in the fact that the tibie and tarsi are not furnished with 
cilia, and from Phytobius by having the antenne inserted in the middle 
of the rostrum, and the legs longer and more slender with the last tarsal 
joint elongate ; the claws are long and simple; the club of the antenne 
is ovate; the thorax is furnished with four tubercles of which the 
posterior pair are the most distinct. 
L. leucogaster, Marsh (myriophylli, Gyll). Black, dull, upper 
surface somewhat depressed on disc, underside thickly clothed with 
white scales, as well as the sides of the thorax and a spot at the base of 
suture ; the elytra are besides more or less distinctly variegated with 
greyish scales and sometimes have a slight silvery reflection ; scape of 
antenne and the legs yellow, knees and tarsi, and sometimes more or 
less of tibize, black ; thorax narrowed in front, but scarcely constricted, 
with a channel extending for its whole length, and with four tubercles, 
two, more or less indistinct, at anterior margin, and two large pointed 
ones on each side at base ; elytra much broader than thorax with rather 
deep striz, fifth interstice elevated at base. L. 25 mm. 
Male with the intermediate tibiz armed with a small hook. 
In ditches, &c., on aquatic or sub-aquatic plants; sometimes found in moss and 
flood refuse; local, but not uncommon; Woking, Walton-on-Thames, Sunbury ; 
Gravesend ; Whitstable; Sheerness; Birchington; Pegwell Bay; Eastbourne ; 
Arundel ; New Forest ; Southsea (at roots of rushes); Isle of Wight; Glanvilles 
Wootton; Bristol ; Bewdley; Old Trent, Repton; Aylsham and Rudham, Norfolk ; 
Liverpool district ; Northumberland and Durham district ; Scotland, rare, Solway 
district (Sharp) ; Loch Gelly (Power) ; Ireland, near Dublin and Belfast. 
PHYTOBIUWS, Schmidt. 
This genus contains upwards of twenty species which are found in 
Europe and North America ; they are short and broad insects with a 
short stout rostrum and ten-jointed antennz which are inserted in front 
of the middle of the rostrum ; the tarsi have the last joint not elongate 
and the claws are either simple (Phytobius, i. sp.) or appendiculate on 
their inner side (Pachyrrhinus, Steph.) ; the species are sub-aquatic in 
their habits, but do not live or undergo their transformations beneath 
the water, as is the case with the two preceding sub-genera ; an account 
of the larva is given by Chapuis and Candéze (Catalogue des Larves des 
