Species profile: Tinodes maclachlani

January 18, 2017

Tinodes maclachlani Kimmins, 1966

Tinodes maclachlani is one of nine members of the Family Psychomyiidae found in Ireland, and one of five members of the genus Tinodes. It is a species whose larvae can be found streams and on trickling rock faces, including those on coastal cliffs, building galleries on the rock surfaces. The species shows no preference in terms of the pH of the water.

In temperate areas, Tinodes maclachlani has a univoltine (one generation per year) reproductive cycle, and lives for up to one year. In terms of feeding ecology, the larvae are predominantly grazers.

Defining features of the larvae of Tinodes maclachlani include a lack of abdominal gills, labrum comprising a sclerotized plate, lateral plates on the 2nd and 3rd thoracic segments small, anal prolegs with almost no basal membranous section, pronotum lacking a black thickening towards the posterior-lateral corner, anterior section of 1st leg coxopleurite with two vertical black bars, pronotum lacking ovoid yellow markings, labrum darkest at the posterior-lateral extensions, frontoclypeus with three similarly size pale spots, ventral surface of the 2nd thoracic segment with pigmented patch, and proleg dorsal surfaces with a single, distinct pale spot.

Adults of Tinodes maclachlani can be found on the wing from May to August.

For details of records of Tinodes maclachlani, visit the National Biodiversity Data Centre page here.

Tinodes maclachlani


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

Edington, J.M. and Hildrew, A.G. (1995) A Revised Key to the Caseless Caddis Larvae of the British Isles: with notes on their ecology. Freshwater Biological Association Special Publication No. 53.

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.

Last updated: 08/04/2018



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