Weevils - Entomological Society of Canada

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Limiting carina of smooth area on ventral surface of each front
femur of male located on inner lateral side of femur. Length
2.0-2.3 mm. Washington . .. funereum Fall (p. 112)
Forelegs of male each with abrupt tubercle on inner side of apical
third of femur (Figs. 52, 53,54) 6
Forelegs of male each with apical third of inner side of femur not
swollen or only slightly so (Figs. 50, 51) 10
Polished area of each front femur of male with more or less distinct
Iimiting lateral carina (Figs. 53, 54) . . 7
Polished area of each front femur of male lacking lateral carina.
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Abdominal sternites finely, sparsely punctured 8
Abdominal sternites coarsely, deeply punctured. Length I.8-2.2
mm. Quebec .... .. imped.itumEall (p. 117)
Front tibiae not greatly expanded toward apex (Fig. 54). Front
femora of male weakly protuberant on inner side . . I
Front tibiae strongly expanded toward apex (Fig. 52). Front femora
of male strongly protuberant on inner side. Length t.7-2.L mm.
New Brunswick to British Columbia . . . finitimumFall (p. 110)
Ventral surface of polished area of each front femur of male lacking
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Ventral surface of polished area of each front femur of male with
distinct, separated striae next to lateral carina. Length 2.0-3.0 mm.
Saskatchewan, Alberta robustum Smith (p. 132)
Distance between each eye and antennal insertion not less than
width of frons
Distance between each eye and antennal insertion less than width of
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Rostrum of male less than 1.4 times longer than pronotum.
Rostrum of female 1.9-2.0 times longer than pronotum. Polished
area of each front femur of male with fine, distinct striae
throughout. Elytra more than 1.5 times longer than wide. Length
2.2-2.8 mm. Alberta . . . . . occidentale Fall (p. 122)
Rostrum more than 1.4 times (male) or L6-2.4 times (female)
longer than pronotum. Polished area of each front femur of male
generally without striae or with striae very faint and occurring near