Weevils - Entomological Society of Canada

users of this work will be cautious when applying names to species in
this genus.
Genus Auletobius Desbrochers
Auletobius Desbrochers, 1869:396; Voss 1922:27, 29; Voss 1933:110,
113; Hamilton 1969:356; O'Brien and Wibmer 1982:13.
Metopon Waterhouse, 1842:8.
This genus contains 16 species in North America, mostly in the
southern United States, Mexico, or Central America. Three species
occur in the southern regions of Canada, one in the west, and two in the
east. The distinctive characteristic of this genus is the randomly
punctured elytra (except in A. cassandrae).In addition, the rostrum is
very slender, the pygidium is covered by the elytra, and the scutellar
striae are not evident.
Description. Body stout, pear-shaped. Pubescence consisting of
short, hair-like, inconspicuous setae. Head conical, widest across eyes;
surface punctured. Rostrum slendeq weakly curved; apex weakly
expanded. Eyes strongly convex, protuberant. Antennae (Figs. 157, 158)
inserted in basal quarter of rostrum (Fig. 157) or in middle of rostrum
(Fig. 158); terminal 3 segments distinctly larger than other segments.
Pronotum narrower than elytra; disc shining, punctured. Elytra
inflated on posterior half, broadly rounded at apex; surface not striated;
punctures randomly scattered (except A. cq,ssqndrae); interpuncture
space shiny. Abdomen not sexually modified. Pygidium concealed by
elytra.
T5pe species. Inuoluulus sanguisorbae Schrank, by subsequent
designation.
Comments. Hamilton (1969) gives a key to the species occurring
in the United States, as well as descriptions, distributions, and other
essential information.
Key to species of Auletobius in Canada
1. Body 1.8-2.2 mm long, dark reddish brown. Pubescence bicolored,
yellowish and white. Elytra with irregular white crossbands and
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