Species profile: Leptocerus tineiformis

January 11, 2017

Leptocerus tineiformis Curtis, 1834

Leptocerus tineiformis is one of 24 members of the Family Leptoceridae found in Ireland, and the only member of the genus Leptocerus. It is a species whose larvae can be found in ponds, lakes and canals, on a substratum of living plant material and woody debris, occurring only in standing water. Leptocerus tineiformis has an almost straight case made of translucent, secreted material. The species has no preference in relation to the pH of the water.

In temperate areas, Leptocerus tineiformis has a univoltine (one generation per year) reproductive cycle, and lives for up to one year. In terms of feeding ecology, this species is a mix of a grazer and a shredder.

Defining features of the larvae of Leptocerus tineiformis include antennae at least six times longer than wide, a hooked tarsal claw on the 2nd leg and distal section of the anal proleg with five long setae and a number of short setae.

The adults of Leptocerus tineiformis have only been found on the wing in July in Ireland, but from June to August in Britain.

For details of records of Leptocerus tineiformis, visit the National Biodiversity Data Centre page here.

Leptocerus tineiformis


Barnard, P. and Ross, E. (2012) The Adult Trichoptera (Caddisflies) of Britain and Ireland. RES Handbook Volume 1, Part 17.

Graf, W., Murphy, J., Dahl, J., Zamora-Muñoz, C. and López-Rodríguez, M.J. (2008) Distribution and Ecological Preferences of European Freshwater Species. Volume 1: Trichoptera. Astrid Schmidt-Kloiber & Daniel Hering (eds). Pensoft, Sofia-Moscow.

O’Connor, J.P. (2015) A Catalogue and Atlas of the Caddisflies (Trichoptera) of Ireland. Occasional Publication of the Irish Biogeographical Society, No. 11.

Wallace, I.D., Wallace, B. and Philipson, G.N. (2003) Keys to the Case-bearing Caddis Larvae of Britain and Ireland. Scientific Publication of the Freshwater Biological Association No. 61.

Last updated: 09/04/2018



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