Species profile: Tinodes maculicornis

January 18, 2017

Tinodes maculicornis (Pictet, 1834)

Tinodes maculicornis 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 and streams, on a substratum of gravel to boulders, building galleries on rock surfaces, with no preference for water flow. The species shows a preference for alkaline water.

In terms of feeding ecology, the larvae are predominantly grazers, with some gathering and passive filter feeding.

Defining features of the larvae of Tinodes maculicornis 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 and no pigmented area on the ventral surface of the 2nd thoracic segment.

Adults of Tinodes maculicornis can be found on the wing from July to September.

For details of records of Tinodes maculicornis, 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

 

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