Species Sciaphilus asperatus

Classification · Explanation of Names · Size · Identification · Range · Habitat · Food · Life Cycle · Remarks · Works Cited

broad-nosed weevil - Sciaphilus asperatus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

No Taxon (Series Cucujiformia)

Superfamily Curculionoidea

Family Curculionidae (Snout and Bark Beetles)

Subfamily Entiminae (Broad-nosed Weevils)

Tribe Sciaphilini

Genus Sciaphilus

Species asperatus (Sciaphilus asperatus)

Explanation of Names

Sciaphilus asperatus (Bonsdorff 1785)

Size

4.5-5.5 mm(1)

Identification

Adult: snout very short (no longer than head) and blunt-tipped; body light brown to reddish-brown with extensive black speckling and scattered white scales; elytra with black punctate striations and short erect hairs; brown surface scales often become rubbed off, revealing black ground color in places, giving a "black-scratched" appearance

Range

native to Europe, adventive in NA (introduced ca. 1880) and established across s. Canada and in e. US south to NC(2)(1)(3)(BG data)

Habitat

hardwood forest (in the Great Lakes Region)(1)

Food

polyphagous: adults on leaves of various trees (maple, birch, fruit trees, conifers) and other plants, larvae feed on roots(2)

Life Cycle

parthenogenetic

Remarks

larvae are pests of strawberry & raspberry in the Palaearctic(1)

Works Cited

1.	Insects and Arachnids of Canada Series, Part 25. Coleoptera, Curculionidae, Entiminae. Donald E. Bright, Patrice Bouchard. 2008. 2008. NRC Research Press, Ottawa, Ontario, Canada.

2.	The weevils (Coleoptera: Curculionoidea) of the Maritime Provinces of Canada, II: New records from Nova Scotia... C.G. Majka, R.S. Anderson, & D.B. McCorquodale. 2007. The Canadian Entomologist 139: 397–442.

3.	The beetle fauna of Rhode Island: an annotated checklist Sikes D.S. 2004. The Biota of Rhode Island, v. 3. Rhode Island Natural History Survey, Kingston, RI. vi + 296 pp.

Contributed by tom murray on 22 November, 2006 - 5:49pm
Additional contributions by Robin McLeod, Mike Quinn, v belov
Last updated 21 January, 2017 - 7:43pm

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2023 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Printer Friendly Version