30(3 
COLEOPTERA. 
surface, epipleurae usually distinct ; antennas straight, 11 -jointed; front 
coxae conical, prominent ; prosternum very short in front of cox^ ; 
ventral sutures of abdomen straight (other variable characters given). 
The affinities of this series are in an ascending direction with the 
rostrated Heteromera, and in a descending one to the true Curculionida: 
through the Attelabidce, and to the Belidw through the lihyncliitidw. 
It contains the following families : — 
A. Ventral segments nearly equal in length Rhinomaceridce. 
B. Ventral segments diminishing in lengtli. 
Mandibles flat, tibial spurs small Rhynchitidee. 
Mandibles stout, pincer-shaped, spurs largo Atlelahidcu. 
Series II. Ali.ogastka. Abdomen dissimilar in the sexes ; dorsal 
segments 1-6, coriaceous or membranous, 7th large, corneous, undivided 
in $ , divided into two in $ ; ventral segments prolonged upwards, form- 
ing a sharp edge, fitting into a corresponding groove on the inner face of 
the elytra, which are Avithout epipleurae. 
A. Antennae with a solid annulated club, 
a. Tarsi narrow. 
Gular margin very prominent, mentum retracted. 
Prosternum not excavated Amycteridoe. 
Prosternum excavated Byrsopidm. 
Gular margin not prominent, mentum large, 
concealing mandibles Brachyceridoi . 
h. Tarsi dilated, usually with a brush beneath. 
Mandibles with deciduous tips Otiorhynchidai . 
Mandibles simple, usually pincer-shaped Curcnlionidce. 
B. Antennas with 11 separate joints Brenthidce. 
The first 3 and the last of these families are not sub-divided. The 
(American) OUorhyneJudw are however grouped as follows: — Side-pieces 
of metuthorax coiicoalod or indistinct, Otiorlrynrhini (OLiorliy nchi, 
Tr«chyphl(X)i, Perituli), Brachyderinl (Aniomphi, Goouomi), Lcjitopsiui, 
Rhigopsini (Rhigopsis, g. n., Leconte, 1. c. p. 459 ; resembles Rhytido- 
I'hinuSj but with mentum similar to that of the other Adelognaths of this 
family, and a distinct mandibular scar ; R. effracta^ sp. n., ihid., S. Cali- 
fornia) ; side - pieces of metathorax narrow, distinct, Dyslohini (Dyslobi, 
Ophryastes, Trigonoscutae), Phyllohiini (Phyllobiini, containing Pachnaei, 
Phyllobii, and Macrostyles ; and Tanymecini, containing Symmathes, 
Aphrasti, Tanymeci, and Cyphi), Entimini (p, 458), Evotini (Evotus, 
g. n., Leconte, L c. p. 458; type, Otiorhynchus ? waso, Lee.), Eudiagogini. 
The Curculionidee are thus grouped : — Antennal grooves extending to 
base of mandibles (Brachyrhynchi), Sitonini, Bathyrini (Bathyris, g. n., 
Leconte, 1. c. p. 462 ; somewhat resembles Cratoparis in the Anthrihidce. 
B. dispar, sp. n., 1. c. p. 462, Arizona, Texas), Alophini ; grooves not ex- 
tending to base, Ithycerini, with gular peduncle broad-truncate, and 
Mecorhynchi, with gular peduncle long (stated to be too numerous to 
specify). 
Series III. Heterogastra. Abdominal segments alike in both sexes, 
ventral segments prolonged upward as in Series II. 
