Trechimorphus diemenensis (Bates, 1878) (a species of ground-beetle)

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

TMAG collections

Typical length (mm): 5
Flightedness: winged and assumed capable of flight

Source literature on morphology and taxonomy (*primary taxonomic source, where identified):
Moore, B.P. (1972). A revision of the Australian Trechinae (Coleoptera: Carabidae). Aust. J. Zool. Suppl. Series 18: 1–61.
Sloane, T.G. (1920). The Carabidae of Tasmania. Proc. Linn. Soc. NSW 45: 113-178.

Assumed larval feeding: predator
Association with dead wood or old trees: at least facultatively saproxylic

Ecological attributes: — Affiliated with larger-diameter logs (Yee et al., 2006) — Affiliated with older trees (Harrison, 2007) — Affiliated with trees of intermediate age (Harrison, 2007) — Affliliated with young (ex-clearfelled) forest (Baker et al., 2009c) — Associated with cerambycid larval damage in wood (Harrison, 2007) — Associated with dry brown cubic rot (Harrison, 2007) — Associated with mudguts (Harrison, 2007) — Associated with wet brown cubic rot (Harrison, 2007) — Found under large logs (Grove et al., 2006) — 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: — Baited trapping (funnel trap) — Emergence trapping from cut billets of Eucalyptus obliqua (Harrison, 2007) — Emergence trapping from log of Eucalyptus obliqua — Flight intercept trapping (trough below Malaise trap) — Hand collection (substrate not specified) — Hand collection from under log of Eucalyptus sp. — Knockdown fogging of canopy of Eucalyptus obliqua — Malaise trapping — Pitfall trapping — Vane trapping.

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.
Grove, S.J. (2009b). Beetles and fuelwood harvesting: a retrospective study from Tasmania’s southern forests. Tasforests 18: 77-99.
Grove, S.J. et al. (2006). What lives under large logs in Tasmanian eucalypt forest? Tas. Nat. 128: 86-93.
Hopkins, A.J.M. et al. (2005). Wood decay fungi and beetle assemblages associated with living Eucalyptus obliqua trees: early results from studies at the Warra LTER Site, Ta
Baker, S.C. (2006b). Ecology and conservation of ground-dwelling beetles in managed wet eucalypt forest: edge and riparian effects. PhD 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.
Grove, S.J. & Yaxley, B. (2005). Wildlife habitat strips and native forest ground-active beetle assemblages in plantation nodes in northeast Tasmania. Aust. J. Entom. 44 (4): 331-343.
Grove, S.J. (2009c). Do wildlife habitat strips act as refuges for mature-forest carabid beetle assemblages? A case-study in Tasmanian wet eucalypt forest, Australia. For. Ecol. Manage. 259: 496-504.
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.
Michaels, K.F. (1999a). Carabid beetles as biodiversity and ecological indicators. PhD thesis, Univ. of Tasmania, Hobart.
Taylor, R.J. et al. (2000). Occurrence of old-growth carabid beetles in retained unlogged strips in … southern Tasmania. In: Saunders, D. et al. . (Eds.), Nature Conservation 5…. Surrey Beatty, pp. 120-127.
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.
Yee, M. et al. (2006). Brown rot in inner heartwood: why large logs support characteristic … beetle assemblages … In Grove, S.J. & Hanula, J.L. (eds.) Insect biodiv. and dead wood, pages 42-56. USDA For. Serv., SRS.