126 RHYNCHOPHORA. [ Rhynchites. 
the female; in this he appears to be correct, although one or two 
authors seem inclined to refer the longer rostrum to the male. 
R.nanus, Payk. (planirostris, F. nec Desbr.). A small elongated and 
narrow species, of a greenish-blue colour, shining ; almost glabrous ; 
forehead obsoletely punctured, rostrum rather smooth; thorax sub- 
cylindrical and subparallel, coarsely punctured, without central channel ; 
elytra with strong punctured striw, interstices narrow, finely substrigose 
transversely ; anterior tibia simple at apex, intermediate with a small 
hook at apex in one sex, apparently the male ; legs rather long and slender. 
Li. 13-2 mm. 
On young birches in woods; somewhat local, but common where it occurs, and 
generally distributed from the southern districts to the north midland districts ; 
rarer farther north ; Northumberland and Durham district, not common; the Scotch 
record is “Solway, Tweed, and Moray districts,” but Dr. Sharp adds a note to the 
effect that he has never seen a Scottish specimen and thinks it very probable that the 
specimens should be referred to the following species: it has been taken in Ireland. 
R. uncinatus, Thoms. (planirostris, Desbr., nec F., tomentosus, Gyll., 
sec. Bedel). Extremely like the preceding, with which it has been very 
often confused, but easily distinguished by having the anterior tibie 
produced into a tooth internally at apex, by the rostrum being longer (if 
compared in the same sex) and the thorax evidently widened behind 
middle ; the forehead and rostrum, also, are more plainly punctured, and 
the thorax is more regularly punctured and has an obsolete central 
channel, which, however, is not always very evident; the legs are 
nigro-cceruleous, and the tarsi have the first joint elongate. 
L. 13-23 mm. 
On aspens, willows, young oak, hazel, birch, &c. ; local and not common, although 
sometimes met with in some numbers where it occurs; Darenth Wood, Esher, 
Mickleham, Horsell, Wimbledon, Weybridge, Chatham, Chertsey, Woking, Maid- 
stone ; Lords Wood, Southampton ; New Forest ; Bewdley ; Cannock Chase ; Knowle, 
near Birmingham ; Chat Moss; Strettord, near Manchester ; Northumberland and 
Durham district, somewhat rare, but from several localities ; Scotland, scarce, 
Solway and probably other districts. 
R. sericeus, Herbst. (ophthalmicus, Steph.). Deep-blue, rarely 
ereenish-blue, or violet blue, shining, with outstanding fuscous pubescence ; 
rostrum very short, sulcate at base ; head large, diffusely punctured, eyes 
prominent; thorax with sides rounded and somewhat dilated about middle, 
coarsely punctured, sometimes obsoletely furrowed in centre ; scutellum 
small; elytra with moderately coarsely punctured stria which reach apex, 
interstices with smaller punctures; antenne black ; legs blue-black, 
slightly pilose. L. 4-55 mm. 
On young birch, hazel, &e.; in woods ; very local, but sometimes not uncommon 
where it occurs; Darenth Wood; Coombe Wood; Bewdley Forest ; Scarborough ; 
Scotland, very rare, Forth district. 
R. pubescens, F. Greenish-blue, or blue, shining, thickly clothed 
with very long, outstanding, fuscous hairs ; rostrum short, sulcate at base ; 
