New Irish Species – Trichostegia minor

July 9, 2017

The official list of caddisfly species present in Ireland has been increased by one with the confirmation of Trichostegia minor through adult material collected in 2016 using a light-trap. Larvae of the species had previously been recorded by Kavanagh & Harrison (2014) from drainage ditches in agricultural land in the Dripsey River catchment, Co. Cork. Adult T. minor were collected and identified by Cathal McNaughton by Lough Sheelin in Mullaghboy, Co. Cavan and the identifications were confirmed by J.P. O’Connor. The Irish list now stands at 150 species; however Tricholeiochiton fagesii (Guinard, 1879) is, as yet, only known from larval material. It almost certain that there will be new additions in the future, with  Hagenella clathrata (Kolenati, 1848) also suspected to be present.

Kavanagh, J.A. and Harrison, S.C. (2014) The contribution of a drainage network to the spatial and temporal patterns of macroinvertebrate diversity across an agricultural headwater catchment. Biology and Environment Proceedings of the Royal Irish Academy 114B: 181-197.

O’Connor, J.P. and McNaughton, C. (2017) The caddisfly Trichostegia minor (Curtis, 1834) (Trichoptera: Phryganeidae) confirmed as an Irish species. Entomologist’s Record and Journal of Variation 129: 147-150.

 

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