Weevils - Entomological Society of Canada
Weevils - Entomological Society of Canada
Weevils - Entomological Society of Canada
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that the absence <strong>of</strong> a frontoclypeal suture in the larvae is<br />
phylogenetically important feature that unites the genera<br />
Nemonychidae into one unit.<br />
Nine species in four genera occur in <strong>Canada</strong>; 17 species in five<br />
genera occur in North America. Adults and larvae feed on the staminate<br />
flowers <strong>of</strong> various pines and other conifers (Kuschel 1g8g).<br />
This family has been revised recently (Kuschel 1g8g).<br />
Description. Body elongate to oval, somewhat flattened, densely<br />
pubescent. Head with gular sutures distinct, separate; pregular sutures<br />
absent; rostrum flattened, broad on distal half, not sexually dimorphic.<br />
Maxillary palpi flexible, 4-segmented; laciniae distinct; labrum distinct,<br />
separate. Antennae straight, 11-segmented, moniliform; antennal club<br />
3-segmented, the segments only slightly enlarged. Legs with trochanter<br />
short, triangular; femur attached to side <strong>of</strong> trocanter. Abdomen with all<br />
5 sternites free.<br />
l.<br />
2.<br />
Key to genera <strong>of</strong> Nemonychidae in <strong>Canada</strong><br />
(in part after Kuschel 1989)<br />
Mandibles inserted laterally; mandibular sockets only partly<br />
exposed in dorsal view; mandibles horizontal, continuous with<br />
rostral axis in lateral view. Antennae distinctly closer to mandibular<br />
sockets than combined length <strong>of</strong> first 3 antennal segments.<br />
Pronotum not emarginate at apex or moderately so. Epipleural<br />
carlna narrow 2<br />
Mandibles inserted dorsally; mandibular sockets entirely exposed<br />
in dorsal view; mandibles directed obliquely downward in relation<br />
to rostral axis. Antennae at least as distant from mandibular sockets<br />
as combined length <strong>of</strong> first 3 antennal segments. Pronotum deeply<br />
::ii":::: ii iill'i*'::::l :::li*ii3l,";i," x,""r,"i rp ss,<br />
Mandibles evenly curved on outer edge in dorsal and lateral view,<br />
:i:l1111:::i:l:::l::':::1 ?lr? ";*un,i" a"" c";i;ip ss,<br />
Mandibles angulate on outer edge in dorsal or lateral vieq unarmed<br />
on inner edge . . ...... g<br />
3. Frons abruptly sloping, forming deep impression at base <strong>of</strong><br />
rostrum; frons nearly at right angles to base <strong>of</strong> rostrum (Fig. 40).<br />
Abdominal sternites <strong>of</strong> both sexes without tufts <strong>of</strong> white setae.<br />
:::::::::::::::::::-i:1"1*frii:;#ILTs;#,%:Hl<br />
52<br />
a<br />
<strong>of</strong>
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