Dryoceetina. | RHYNCHOPHORA. 425 
DRYOCATINA. 
This tribe, which is co-extensive with the Ipina of Bedel and the Tomi- 
cina of Thomson, contains a considerable number of genera ; as in the case 
of the preceding tribe, however, their final constitution cannot be as yet 
said to have been settled with any certainty. Seven genera have usually 
been regarded as British, but these have been further sub-divided in two 
or three instances: the new genus Pityogenes recently founded by Bedel 
for the reception of the three species chalcographus, bidentatus and 
quadridens, formerly referred to Tomicus, must certainly be adopted, 
ard I have also, after some hesitation on my own part, been convinced 
by Mr. Blandford that Eichhoff’s genus Taphrorychus must stand ; I still, 
however, feel somewhat in doubt as to Lowendal’s genus Lymantor 
(containing LZ sepicola = D. coryli) ; the members of the tribe may 
easily be distinguished by the head being globose, or nearly so, and 
deeply sunk in the thorax, and by the presence of warty asperities in 
front of the thorax in all but a very few species ; the eyes are transverse 
and sometimes divided ; the antennz have the scape long and stout, the 
funiculus short with the number of joints variable, and the club large 
and compressed, and varying in shape in the different genera ; the elytra 
are in many cases excavated behind, with the edges of the excavation 
either simple or dentate; the femora are stout and the tarsi slender. 
Certain of the species are extremely hurtful to forest trees, more 
especially pines and firs: Westwood (Classification I. p. 352) relates 
how “the great pine forests in Germany are, in certain seasons, very 
much damaged by TYomicus typographus, which is there called the 
‘Ture,’ and the injury caused by which is known under the name of the 
‘wurmtirekniss.’ The evil is occasionally so great, that prayers are 
offered up in the churches against its extension. In 1783, the number 
of trees destroyed in the Hartz forest alone amounted to a million and a 
half, 
I have preferred to adopt the name of Dryocetina for the tribe as 
Bedel applies the name Tomicus to Hylastes which is a member of the 
Hylesinina, and the names Bostrychus (which has been applied to 
Tomicus) and Ips have been for so long applied to genera not connected 
with the group at all, that it seems likely to cause endless confusion to 
revive them in this connexion. 
I, Funiculus of antennze with three joints ; size very 
Eira Wena Millewre Golo es bit hy tbr ELV POT RENE MUS. Heese 
II. Funiculus of antennz with four or five joints ; 
size variable. 
i, Eyes entirely divided ; club of antennz without 
SUGINCSHME een caee oe Ste sli ve lets “LDRYPODENDRON, Step. 
ii. Eyes entire or slightly emarginate. 
1. Elytra clothed with scale-like pubescence and 
sometimes with fine raised hairs in addition, 
not excavate at apex; scutellum very small ; 
club of antennz with distinct sutures . . . CORYPHALUS, Er. 
