Tinodes waeneri (Linnaeus, 1758)

Tinodes waeneri 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 in lakes, rivers, streams and canals, on a substratum of gravel to bedrock, building galleries on rock surfaces in standing to slow-flowing water. The species shows no preference in relation to pH of the water and can be found in brackish water.

In temperate areas, Tinodes waeneri has a variable reproductive cycle and lives for up to one year. In terms of feeding ecology, the larvae are predominantly grazers, with some gathering, passive filter feeding and predation.

Defining features of the larvae of Tinodes waeneri 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 with yellow ovoid markings, and frontoclypeus noticeably darker the adjacent areas of the head.

The adults of Tinodes waeneri can be found on the wing from April to November.

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

References

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: 18/01/2017

 

Advertisements