CLASSIFICATION OF THE RHYNCHOPHOROUS COLEOPTERA. 387 
with the other families, and pertaining rather to the Chrysomel- 
idx, with which they have since been associated by most authors. 
The Bruchids and Anthribidee were characterized by having a 
distinct labrum; the Scolytidee by the compressed and dentate 
tibie, while the Brenthide were separated rather by form than 
by any distinct structural character. 
The Curculionids were then divided according to the size of 
the mentum, into 
I. Mentum closing the buccal space, and concealing the ante 
ADEL 
Eyes rounded, prothoracic lobes indistine Cyc lohan. 
Eyes large, depressed, eee ie pps below, prothoracic lobe 
well marked, OSRED as Chatha 
- Mentum smaller, pieni aunen eee Gs SS PAN RROGNATHI. 
A. Front coxæ contiguous or nearly so Synmerides. 
bod 
a 
- Pygidium covered by the elytra; anes hot appendiculate. 
TEE, short ; episterna narrow; 
inct: 
Metasternum long; episterna rather wide : 
Antennæ geniculate 
Antennæ straight. 
. Pygidium exposed, or claws abe ee as 
venta) segments Bat Sp ates t the sides 
ted: 
B. Front cox pesta by the prosternum, which is frequently 
channelled for the reception of the beak, Apostasimerides. 
a. ie organs normal. Club of antenné annulated; 3d 
Meiothomoic epimera Se ascending : 
ending. 
b. Oral wae pean 1st joint of antennal club usually 
very large, corneous, 3d joint of tarsi rarely bilobed. 
Pygidium expose 
Ri covered by elytra. 
Each of these divisions contains several tribes differentiated 
by etactors of smaller importance, and not unfrequently in- 
definite 
m ‘The’next attempt at a general classification was made by 
Mr. H. Jekel.* This excellent author recognized with great 
clearness, and defined with tolerable precision, the following eight 
raa RAS Rt ANG 
` 
` * Annales Ent. Soc. France, 1864, p. 537. Ins. Saundersiana, 155 sqq., 1860; 
