Weevils - Entomological Society of Canada

Attelabus rhois Boheman, 1829:I2l (type,'America"; NHRM);
Blatchley and Leng 7916:64.
Himatalqbu s (H imatolabus) rhoi s : Voss 1 925 : 2 43, 247 .
Attelabus maculatus Provancher, 7877:52I (type, Quebec; Laval
University, Quebec).
Attelabus rhois maculatus : Leng 1920 : 309.
Himetolabus (Himq.tolq.bus) colorq.densis Voss, 1925:244 (type,
Colorado;ZMHU).
Attelabus (Himatolabus) disparipes Chittenden, 1926:164
(holotype, Arizona; USNM).
Description. Length 4.0-6.8 mm. Integument reddish brown,
rarely dark reddish brown to nearly black. Pubescence consisting of
abundant white to pale yellow setae. Head slightly narrowed from base
to eyes; median carina slightly elevated, longitudinal, extending from
vertex to level ofmiddle ofeye; surface ofhead strongly punctured below
median carina. Rostrum shorter than head, constricted at antennal
insertion; apex broadly expanded, about twice as wide as frons; lateral
apical angles with a blunt tooth. Antennae inserted dorsolaterally at
basal third of rostrum. Pronotum 1.3 times wider than long, widest at
base; sides strongly arcuate, converging to recurved anterior margin;
disc convex, with distinct, round impression on median lateral area;
surface with large, dense, moderately deep punctures. Elytra (measured
along suture) as long as wide, at base 1.3-1.4 times wider than
pronotum; apex broadly rounded; striae shallowly impressed,
inconspicuous, sometimes discernible laterally or toward apex, with
moderately large, moderately deeply impressed punctures; interstriae
rugose, weakly elevated, with scattered fine points; setae abundant,
short. recumbent. curved.
Distribution. Nova Scotia to Manitoba, south through the
eastern United States to Virginia and Tennessee, west to Wisconsin,
Kansas, and Nebraska. A population thought to be this species occurs in
the southwestern United States. Manitoba: Aweme, Baldur, Carberry,
Horton, Ninette, Riding Mountain National Park, 8 km southwest of
Shilo, and Winnipeg. New Brunswick: Bathurst, Boiestown,
Fredericton, and Penobsquis. Nova Scotia: Port Medway. Ontario:
Addington, Bobcaygeon, Gravenhurst, Hastings, Hearst (not on map),
La Salle, Merivale, Ottawa, Paris, Renfrew, Roseland, South March,
Tillsonberg, Toronto, Wagarville, and Walsingham. Quebec: Compton
(Mount Megantic), Duparquet, Farm Point, Saint-Joseph-de-Kamouraska,
and Trois-Rividres.
Comments. Adults of this species are easily recognized, since this
is the only species in this family in Canada that is thoroughly pubescent.
Nothing concerning the biology ofthis species has been recorded except
that adults have been recorded rolling leaves of hazelnut (Corylus
L77