
Porrostoma moerens (Lea, 1909) (a species of net-winged beetle)
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 Metriorrhynchus moerens)
TMAG collections
Classification
Order: Coleoptera
Suborder: Polyphaga
Superfamily: Elateroidea
Family: Lycidae
Subfamily: Metriorrhynchinae
Tribe: Metriorrhynchini
Morphology
Typical length (mm): 11
Flightedness: winged and assumed capable of flight
Morphology (characterised by L. Forster): — Abdomen with penultimate segment incised almost to base — Elytra completely black and with double rows of punctures; scutellum transverse with semi-circular apex — Head with rostrum almost as long as pronotum — Pronotum black, divided into seven distinct areolets — Wings present — Wings present.
Source literature on morphology and taxonomy (*primary taxonomic source, where identified):
*Lea, A.M. (1909b). Revision of the Australian and Tasmanian Malacodermidae. Trans. Roy. Entom. Soc. Lond. 1909: 45-251. [Pages 52, 79-80]
Ecology
Assumed larval feeding: predator
Association with dead wood or old trees: at least facultatively saproxylic
Collection method(s) for TMAG material: — Hand collection (substrate not specified) — Hand collection from flowers of Eucryphia lucida (Ettershanks & Ettershanks, 1993) — Hand collection from flowers of Leptospermum scoparium (Ettershanks & Ettershanks, 1993) — Hand collection from flowers of Leptospermum sp. (Ettershanks & Ettershanks, 1993) — Malaise trapping — Pitfall trapping.
Source ecological literature:
Grove, S.J. (2009b). Beetles and fuelwood harvesting: a retrospective study from Tasmania’s southern forests. Tasforests 18: 77-99.
