Limnephilus griseus (Linnaeus, 1758)

Limnephilus griseus is one of 40 members of the Family Limnephilidae found in Ireland, and one of 24 members of the genus Limnephilus. It is a species whose larvae can be found in small, often temporary pools in acidic waters. Its substratum preference is predominantly for plant material (Sphagnum spp.), but occasionally on particulate organic matter, mud and sand, in standing water. Limnephilus griseus has a curved case made of plant material, or partly or entirely of sand grains.

In temperate areas, Limnephilus griseus has a univoltine (one generation per year) reproductive cycle, and lives for up to one year. The feeding ecology of the larvae of Limnephilus griseus is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Limnephilus griseus include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, some gills with three or more filaments, additional setae on the femora of the 2nd and 3rd legs not confined to the proximal third, ventral edge of the femora of the 2nd and 3rd leg with two strong setae, both dark, ventral edge setae of 1st leg femur pale, pronotum lacking distinct colour contrast between anterior and posterior sections, pleural band absent or indistinct, femur of 1st leg without additional setae, metadorsum with no setae on soft cuticle between posterior sclerites, 9th abdominal sclerite with at least one seta  between innermost and outermost primary setae at least half as long as outermost seta and no (very rarely 1) additional setae on the anterior of the femur of the second leg.

Adults of Limnephilus griseus can be found on the wing in Ireland from May to September.

For details of published records of Limnephilus griseus, 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.

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 07/12/2017

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Limnephilus hirsutus (Pictet, 1834)

Limnephilus hirsutus is one of 40 members of the Family Limnephilidae found in Ireland, and one of 24 members of the genus Limnephilus. It is a species whose larvae can be found in small trickles and streams on bare mud, including on clay cliffs. Limnephilus hirsutus has a curved case made of sand grains, circular in cross-section. The larvae have a preference for neutral to alkaline water.

The feeding ecology of the larvae of Limnephilus hirsutus is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Limnephilus hirsutus include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, some gills with three or more filaments, additional setae on the femora of the 2nd and 3rd legs not confined to the proximal third, ventral edge of the femora of the 2nd and 3rd leg with two strong setae, both dark, ventral edge setae of 1st leg femur pale, pronotum lacking distinct colour contrast between anterior and posterior sections, pleural band absent or indistinct, femur of 1st leg without additional setae, metadorsum with setae on soft cuticle between posterior sclerites and the lobe of the anal proleg with setae on the soft cuticle by the anal slit.

Adults of Limnephilus hirsutus can be found on the wing in Ireland from May to September, with a possible diapause.

For details of published records of Limnephilus hirsutus, 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.

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 07/12/2017

Limnephilus nigriceps (Zetterstedt, 1840)

Limnephilus nigriceps is one of 40 members of the Family Limnephilidae found in Ireland, and one of 24 members of the genus Limnephilus. It is a species whose larvae can be found in lakes and large ponds with emergent marginal vegetation. Limnephilus nigriceps has a straight case made of butted or overlapping plant fragments, sometimes forming a triangular cross-section.

The feeding ecology of the larvae of Limnephilus nigriceps is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Limnephilus nigriceps include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, some gills with three or more filaments, ventral edge of the femora of the 2nd and 3rd leg with two strong setae, both dark, ventral edge setae of 1st leg femur pale, pronotum lacking distinct colour contrast between anterior and posterior sections, pleural band long and distinct, meeting parietal band along coronal suture and up to seven additional setae on faces of femora of 2nd and 3rd legs.

Adults of Limnephilus nigriceps can be found on the wing in Ireland from September to November.

For details of published records of Limnephilus nigriceps, 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.

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 07/12/2017

Mesophylax impunctatus McLachlan, 1884

Mesophylax impunctatus is one of 40 members of the Family Limnephilidae found in Ireland, and the sole representative of the genus Mesophylax. It is a species whose larvae can be found in lakes, under stones on a bed of gravel. Mesophylax impunctatus has a curved case usually made of mineral particles.

The feeding ecology of the larvae of Mesophylax impunctatus is predominantly shredding.

Characteristic features of the larva of Mesophylax impunctatus include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, some gills with 3-4 filaments, 1 or more additional setae on the anterior or posterior faces of at least one femur of the 2nd or 3rd legs, femur of 2nd leg with at least 3 strong ventral setae and femur of 1st leg with two ventral edge setae.

Adults of Mesophylax impunctatus can be found on the wing from May to November, with a summer diapause.

For details of distribution records of Mesophylax impunctatus, 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.

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: 07/12/2017

Micropterna lateralis (Stephens, 1837)

Micropterna lateralis is one of 40 members of the Family Limnephilidae found in Ireland, and one of two representatives of the genus Micropterna. It is a species whose larvae can be found in small, temporary streams, ditches and flowing marshes. Its substratum preference is for particular organic matter, woody debris, coarse gravel to boulders and bedrock, in slow-flowing and standing water. Micropterna lateralis usually has a curved case made of butted plant fragments, though mineral fragments occasionally dominate. The larvae show no preference for the pH of the water and can be found in brackish waters.

The feeding ecology of the larvae of Micropterna lateralis is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Micropterna lateralis include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, gills with only single filaments, two anterior-median sclerites on the metadorsum, mandibles with teeth along the edges, no setae proximal to the large primary seta on any femur of the 2nd and 3rd legs, no setae anterior to the 1st abdominal lateral protuberance, which either has no sclerite in its posterior region or 1-3 small sclerites that lack setae, but may have a large central hole, spinules covering much of the head and the additional setae of the posterior faces of the femora of the 2nd and 3rd legs with not restricted to the ventral third, only one seta or setae absent.

Adults of Micropterna lateralis can be found on the wing from May to August.

For details of distribution records of Micropterna lateralis, 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.

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: 07/12/2017

Micropterna sequax McLachlan, 1875

Micropterna sequax is one of 40 members of the Family Limnephilidae found in Ireland, and one of two representatives of the genus Micropterna. It is a species whose larvae can be found in small, permanent and semi-permanent streams, ditches and marshes. Its substratum preference is for particular organic matter, and fine to coarse gravel, in slow-flowing and standing water. Micropterna sequax has a curved case made of mineral particles, and/or butted plant fragments. The larvae can be found in brackish waters.

In temperate areas, Micropterna sequax has a univoltine (one generation per year) reproductive cycle. The feeding ecology of its larvae is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Micropterna sequax include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, gills with only single filaments, two anterior-median sclerites on the metadorsum, mandibles with teeth along the edges, no setae proximal to the large primary seta on any femur of the 2nd and 3rd legs, no setae anterior to the 1st abdominal lateral protuberance, which either has no sclerite in its posterior region or 1-3 small sclerites that lack setae, but may have a large central hole, spinules covering much of the head and the posterior faces of the femora of the 2nd and 3rd legs with at least three additional setae, which are restricted to the ventral third.

Adults of Micropterna sequax can be found on the wing from May to November.

For details of distribution records of Micropterna sequax, 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.

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: 07/12/2017

Stenophylax permistus McLachlan, 1895

Stenophylax permistus is one of 40 members of the Family Limnephilidae found in Ireland, and the sole representative of the genus Stenophylax. It is a species whose larvae can be found in small, temporary waterbodies, such as drainage ditches, woodland streams and marshes, in slow-flowing and standing water. Stenophylax permistus has a straight case made of butted leaf fragments. The larvae have no preference in relation to pH and can be found in brackish waters.

The feeding ecology of the larvae of Stenophylax permistus is divided between shredding and gathering.

Characteristic features of the larva of Stenophylax permistus include a prosternal horn, dorsal protuberance on the 1st abdominal segment, antenna midway between the eye and the anterior head margin, gills with only single filaments, two anterior-median sclerites on the metadorsum, mandibles with teeth along the edges, no setae proximal to the large primary seta on any femur of the 2nd and 3rd legs, no setae anterior to the 1st abdominal lateral protuberance, which either has no sclerite in its posterior region or 1-3 small sclerites that lack setae, but may have a large central hole, spinules on the head restricted to a small patch behind the eye, and additional setae on the anterior face of at least three of the four femora of the 2nd and 3rd legs.

Adults of Stenophylax permistus can be found on the wing from April to October, with a summer diapause.

For details of distribution records of Stenophylax permistus, 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.

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: 07/12/2017