Weevils - Entomological Society of Canada
Weevils - Entomological Society of Canada
Weevils - Entomological Society of Canada
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description. Kissinger (1968) designated the lectotype. Adults were<br />
collected from May to September. Adults have been beaten from willow<br />
(Salix species). The species may occur in sawfly galls on willow.<br />
Kissinger (1968) notes this species developing in the galls <strong>of</strong> a sawfly<br />
(Euurq species) on arroyo willow (Salix lasiolepis) in the western<br />
United States. Nothing else is known <strong>of</strong> the biology or life history.<br />
Apion bisch<strong>of</strong>fiFall<br />
Figs. 51, 63, 64<br />
Apion bisch<strong>of</strong>fi Fall, 1925:86 (holotype, Montclair, N.J.; MCZ);<br />
Kissinger 1968:131; O'Brien and Wibmer 1982:21.<br />
Apion atripes Fall, 1898:176 (nec Smith 1884).<br />
Description. Length 1.7-2.L mnrl Body moderately robust,<br />
black. Pubescence consisting <strong>of</strong> very fine sparse scales. Frons L.2-1.4<br />
times (male) or 1.4-1.6 times (female) wider than dorsal tip <strong>of</strong> rostrum.<br />
Rostrum <strong>of</strong> male moderately strongly curved, t.2-1.3 times longer than<br />
pronotum; sides, in dorsal vieq nearly parallel beyond middle, distinctly<br />
expanded over antennal insertion; surface minutely punctured; basal<br />
two-thirds coarsely alutaceous; tip more polished; setae minute at base,<br />
short, erect, very sparse beyond antennal insertion. Rostrum <strong>of</strong> female<br />
strongly curved, 1.3-1.4 times longer than pronotum; sides, in dorsal<br />
view, slightly expanded at antennal insertion, slightly converging from<br />
base to apex, slightly expanded at apex; surface sparsely, frnely<br />
punctured, finely alutaceous on basal three-quarters; apex polished;<br />
scales minute at base, short and sparse beyond antennal insertion.<br />
Antennae inserted between basal 0.2-0.3 <strong>of</strong> rostrum. Eyes prominent,<br />
distinctly longer than wide. Pronotum at base 1.0-L.2 times wider than<br />
long; sides arcuate, widest near middle, converging to weakly constricted<br />
apex; basal flange absent; disc convex, flattened apically, with fine<br />
punctures and fine scales, these barely extending beyond anterior rim;<br />
interpuncture spaces ridged; median furrow extending nearly complete<br />
length <strong>of</strong> pronotum. Elytra 1.1-1.3 times longer than wide; striae deep,<br />
fine; apex with striae 1,2, andg joined and deeper at union; striae 7 and 8<br />
joined at apex, ending in deep puncture; interstriae more than twice as<br />
wide as striae, slightly convex, each interstria with 1 or 2 partly confused<br />
rows <strong>of</strong> punctures bearing fine scales. Femora <strong>of</strong> male forelegs slightly<br />
swollen, with area polished, finely striated (Fig. 51), extending one-third<br />
length <strong>of</strong> femur; lateral limiting margin <strong>of</strong> polished area low, nearly<br />
straight. Tibiae <strong>of</strong> middle and hind legs mucronate.<br />
Distribution. Eastern United States north to Pennsylvania,<br />
northern Illinois, and North Dakota. The species is not recorded in<br />
<strong>Canada</strong> but may occur in southern Manitoba or southern Ontario.<br />
94
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