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Ophrythyreocis cyclothyreus (Lea, 1913) (a species of weevil)

Basis for Tasmanian occurrence

Semmens, T.D., McQuillan, P.B. & Hayhurst, G. (1992). Catalogue of the Insects of Tasmania. Government of Tasmania: Department of Primary Industry, 104 pp. (as Exithius cyclothyreus)

TMAG collections

Classification

Order: Coleoptera

Suborder: Polyphaga

Superfamily: Curculionoidea

Family: Curculionidae

Subfamily: Molytinae

Tribe: Cryptorhynchini

Morphology

Typical length (mm): 4.5
Flightedness: winged and assumed capable of flight

Ecology

Assumed larval feeding: wood-feeder
Association with dead wood or old trees: obligately saproxylic
Ecological attributes: — May occupy logs or trunks of Eucalyptus obliqua, at least temporarily, since found having emerged within a year of felling (Grove & Bashford, 2003) — May occupy logs or trunks of Eucalyptus obliqua, at least temporarily, since found having emerged within six years of felling (Grove et al., 2009).

Collection method(s) for TMAG material: — Emergence trapping from cut billets of Eucalyptus obliqua (Harrison, 2007) — Emergence trapping from log of Eucalyptus obliqua — Knockdown fogging of canopy of Eucalyptus obliqua — Malaise trapping — Pipe trapping — Pitfall trapping — Sticky trapping on Eucalyptus obliqua — Trapping using a range of devices placed in crown of Eucalyptus obliqua (Bar-Ness, 2005).

Source ecological literature:
Grove, S.J. & Bashford, R. (2003). Beetle assemblages from the Warra log decay project: insights from the first year of sampling. Tasforests 14: 117-129.

Bar-Ness, Y. (2005). Crown structure and the canopy arthropod biodiversity of 100 year old and old-growth Tasmanian Eucalyptus obliqua. Msc thesis, Univ. of Tasmania, Hobart.

Grove, S. et al. (2009). A long-term experimental study of saproxylic beetle … succession in Tasmanian Eucalyptus … logs… In: Fattorini, S. (Ed.), Insect Ecology and Conservation. Research Signpost, pp. 71-114.

Harrison, K.S. (2007). Saproxylic beetles associated with habitat features in Eucalyptus obliqua trees in the southern forests of Tasmania. PhD thesis, Dept. of Zoology, Univ. of Tasmania, Hobart.

Yee, M. (2005). The ecology and habitat requirements of saproxylic beetles native to Tasmanian wet eucalypt forests: potential impacts of commercial forestry practices. PhD thesis, Univ. of Tasmania, Hobart.

Ophrythyreocis cyclothyreus
Ophrythyreocis cyclothyreus
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