264 RHYNCHOPHORA. [ Erirrhinina. 
ERIRRHININA, 
This is a large and important tribe, which has been very variously con- 
stituted; from the cureulionina (Hylobiina) it may be distinguished by the 
long and slender rostrum and by the fact that the opening of the scrobes 
is not visible from above ; from the Bagoina ii differs in the formation of 
the third tarsal joint, and from the Hyperina by the stronger hooks at 
the apex of the tibiz, the more or less distinctly carinate rostrum, and the 
fact that the trochanters are usually furnished with a long outstanding 
seta; considerable confusion has existed with regard to the division of the 
old genus Hrirrhinus, and great confusion has lately arisen as to its 
nomenclature owing to the fact that Dorytomus of Sahlberg (1823) has 
been discovered by M. Bedel to be identical with Hrirrhinus of Stephens 
(1831), and therefore a new name (Hteophilus) is proposed by him for the 
Dorytomus of Stephens, and the well-known name of Hrirrhinus is sunk 
altogether, the name of the tribe also being changed to Dorytomina : 
I have, however, preferred to adhere, as far as possible, to the old 
arrangement, as, according to Bedel’s nomenclature, Dorytomus means 
one genus with him, and another with Stephens, Thomson and other 
authors, and besides this the authorities for the so-called type species 
are in many cases insufficient and sometimes erroneous. 
The British genera may be divided as follows :— 
I, Anterior femora simple. 
i. Elytra with rows of thick raised sete on the alter- 
nate interstices; third joint of the tarsi without 
setose pubeseence beneath. 
1. Shoulders not marked, completely rounded off ; 
thorax scarcely narrowed before apex... . ORTHOCHZETES, Germ. 
2. Shoulders well marked ; thorax rather strongly 
narrowed before apex . . . PsEuDostyPHLus, Tourn. 
ii, Elytra without rows of raised iyi on ihe sijencene 
interstices ; third joint of tarsi with setose pubescence 
on each Jobe beneath. 
1. Scape of antennz inserted nearly at apex of 
rostrum ; scrobes commencing close to mouth . Procas, Steph. 
2. Scape of antennz inserted at some distance from 
apex of rostrum ; scrobes not commencing close 
to moutb. 
A. Elytra with the tenth (or marginal) stria 
effaced or rudimentary . . ss » © LACHYRYCHTUS: wlenel 
B. = tra with the tenth stria entire. 
. Anterior tibiz straight; prosternum broad 
estore the anterior coxe . . . GRyYPrIpivs, Sleph. 
b. Anterior tibize more or less curved ; pro- 
sternum not broad before the anterior 
coxee. 
a*. Prosternum emarginate in front without 
a distinct transverse line; elytra glabrous 
or pubescent, without short scales; eyes 
oval, depressed. - ERIRRHINUS, Schinh. 
b*. Prosternum truncatein front and bordered 
by a well-marked transverse line; elytra 
