248 RHYNCHOPHORA. 
a’. Elytra not dilated at the sides below the humeri. . . EXoPHTHALMUS. 
6°. Elytra with the flanks angularly dilated or tumid below the hutneri. CHAULIOPLEURUS. 
b'. Elytra without supplementary striz. 
c’. Femora unarmed ; rostrum with the apical portion not carinate at the 
sides. 
c*. Anterior tibie abruptly bowed towards the apex ; upper portion of 
the rostrum parallel-sided ; nasal plate squamose; elytra bilobed 
or produced in front. . . . ee ew we ew ew ew he heh) CRAs. 
d’, Anterior tibie gradually curved towards the apex; upper portion 
of the rostrum widened anteriorly; nasal plate bare; elytra 
separately rounded at the base . . . . . . «. . . ~ « « DeEcaAstIcHa. 
d’. Femora dentate ; rostrum with the apical portion carinate laterally . CLoTEGEs. 
b, Wings rudimentary or wanting. 
c’. Elytra with abbreviated supplementary striz, the outer strie entire ; 
rostrum without diverging ridges, the scrobes becoming broad aud 
shallow behind : sexes dissimilar a 
a’, Elytra without supplementary striz, the strize geminate, the outer ones 
approximate or coalescent ; rostrum with diverging ridges, the scrobes 
not wider behind: sexes not very dissimilar, body elongate . . . . Mazenes. 
NAvUPACTOPSIS. 
RHINOSPATHE. 
Rhinospathe, Chevrolat, Bull. Soc. Ent. Fr. 1878, p. xix. 
This genus includes two elongate, robust, subfusiform, winged, polished, black 
insects nearly related to Exophthalmus. They have the rostrum broad, widened 
anteriorly, bicarinate above, and also with a transverse inter-antennal ridge, the scrobes 
obliquely descending, the antenne inserted near the apex; the eyes large; the 
scutellum transverse; the elytra with two abbreviated supplementary strie towards 
the apex externally, the outer strie entire, the humeri (in the type) obtuse in 2 and 
dentiform in front in ¢, the apical declivity densely villose or squamose; the tibize 
more or less sulcate externally, the posterior pair with the glabrous articular surface 
large and cavernous ; the tarsi broad. 
1. Rhinospathe albomarginata. (Tab. XI. figg. 1, 1a, ¢.) 
Rhinospathe albomarginata, Chevr. Bull. Soc. Ent. Fr. 1878, p. xx (3 2)". 
Teratorhinus phenomenalis, Jekel, in litt.’. 
3. Elytra narrower, the humeri with an angular or dentiform prominence in front; ventral segment 1 
excavate down the middle, 5 bluntly rounded at the tip; rostrum with the posterior margin of the buccal 
cavity angularly raised in the middle. 
Q. Elytra broader and widened to the middle, the humeri obtuse ; ventral segment 5 longer, subtriangular. 
Var, Elytra with the sutural stripe very narrow beyond the basal excavation, the broader one on the lower 
margin interrupted or reduced to a short oblique streak ; the bristly hairs on the apical declivity black 
or dark brown and intermixed with dark scales; the disc sometimes with a small white submarginal 
spot at about one-third from the tip. 
Length 15-255, breadth 4-83 millim. (d 9.) 
