MIMOPEUS 105 
This is hardly surprising considering the limited material with which they had to 
work, 
T. Broun was the only author with first-hand knowledge of the beetles in the 
field. Of the 26 nominal species listed by Gebien (1938-42), only 12 are recognised 
in the present revision. In addition nine new species are described. Most of the 
synonymy was published by Watt (1968) and is updated in the description of species 
later in this paper. 
Species to be excluded 
“Cilibe” asidaeformis Fauvel (Fauvel 1904 : 187-8) from Ile des Pins, New 
Caledonia, was placed by its describer in Cilibe, which from 1859 (Lacordaire 1859) 
until then had been regarded as a strictly New Zealand genus. 
It was transferred by Kaszab (1982) to the Adeliini genus Pseudocilibi endemic 
to New Caledonia. 
Genus Mimopeus Pascoe, 1866 
Pascoe, 1866, Journ, Ent. 1: 368. 
Type species. Mimopeus elongatus (=Cilibe elongata Bréme, 1842). 
Moderately elongate scarcely depressed. Sides of elytra scarcely or not explanate. 
Prosternal intercoxal. process only slightly convex. Surface almost smooth with very 
short, very fine microscopic setae. Anterior intercoxal process of abdomen 
narrowly triangular. Last abdominal sternite with a fine marginal groove underside 
finely and sparsely punctured. (Figs.3,4). 
Antennae. Approximately as in Fig.7. Segements 2-7 almost circular in cross- 
section, remainder dorso-ventrally flattened. Each of the basal segments bears a 
ring of comparatively stout setae near its apex, but these become progressively 
finer and shorter after segment 7. There are finer and shorter setae over the 
remainder of the surface. Ratio of length of segments 2 : 3 : 4: 5 approxiately 1 : 2.3 
: 1.6: 1.3 (M. elongatus, KOH preparation — varies slightly from this in other 
species). The setae arise from small punctures. Microsculpture visible at 25 X 
magnification is visible on terminal segment (11), and usually on segments 8-10. 
Dorsal surface of head. Clypeus emarginate anteriorly, clypeal sutures faint; edge 
of genal canthus rounded, extending about as far laterally as eyes. Eyes reniform, 
embracing genal canthus, upper lobe more extensive than lower lobe (Fig.6), facets 
large, each clearly visible at 10 X magnification, Punctation of surface variable, but 
always with macropunctures, on interstices between which are considerably smaller 
raicropunctures; interstices flat or convex, uneven in closely punctate species, 
microsculpture weak to strong. 
