Limnephilus sparsus Curtis, 1834

Limnephilus sparsus is one of 39 members of the Family Limnephilidae found in Ireland, and one of 23 members of the genus Limnephilus. It is a species whose larvae can be found in temporary waterbodies like pools and marshes. Its substratum preference includes plant material, particulate organic matter, mud and sand, in standing water. Limnephilus sparsus has a curved case made of plant fragments arranged tangentially or of sand grains. Its larvae can occur in brackish water.

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

Characteristic features of the larva of Limnephilus sparsus 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, no femur of the 2nd and 3rd legs with one or more additional setae, the proximal section of the trochanter of the 2nd or 3rd legs with no additional setae, femora of 2nd and/or 3rd legs with ventral setae of contrasting colour (pale and dark) and metadorsum with a row of setae on the cuticle between the posterior sclerites.

Adults of Limnephilus sparsus can be found on the wing from May to October, with a summer diapause.

For details of published records of Limnephilus sparsus, 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 24/07/2017

 

Ecclisopteryx dalecarlica Kolenati, 1848

Ecclisopteryx dalecarlica is one of 39 members of the Family Limnephilidae found in Ireland, and the sole member of the genus Ecclisopteryx. It is a species whose larvae can be found in rivers and larger streams. Its substratum preference is for stony material from gravel to cobbles and boulders, in moderate to fast flowing water. Ecclisopteryx dalecarlica has a curved case made of mineral grains. The species can be found in brackish waters.

The feeding ecology of the larvae of Ecclisopteryx dalecarlica is almost entirely grazing, with small amounts of shredding and gathering.

Characteristic features of the larva of Ecclisopteryx dalecarlica 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 filament, two central anterior-median sclerites on the metadorsum, no teeth along the mandible edges, additional setae on femoral faces, lateral protuberance without a posterior sclerite and a group of pale setae between the eye and the frontoclypeal apotome.

Adults of Ecclisopteryx dalecarlica can be found on the wing from May to June.

For details of distribution records of Ecclisopteryx dalecarlica in Ireland available through the National Biodiversity Data Centre mapping system, click 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: 19/07/2017

Drusus annulatus (Stephens, 1837)

Drusus annulatus is one of 39 members of the Family Limnephilidae found in Ireland, and the sole member of the genus Drusus. It is a species whose larvae can be found in streams and rivers, or rarely on lake shores. Its substratum preference is for stony material from gravel to cobbles and boulders, in moderate to fast flowing water. Drusus annulatus has a curved case made of mineral grains.

In temperate areas, Drusus annulatus has a univoltine (one generation per year) or bivoltine (two generations per year) reproductive cycle, and lives for up to one year. The feeding ecology of the larvae of Drusus annulatus is almost entirely grazing, with small amounts of shredding and gathering.

Characteristic features of the larva of Drusus annulatus 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 filament, two central anterior-median sclerites on the metadorsum, no teeth along the mandible edges, additional setae on femoral faces, lateral protuberance without a posterior sclerite and no group of pale setae between the eye and the frontoclypeal apotome.

Adults of Drusus annulatus can be found on the wing from (May) July to October.

For details of distribution records of Drusus annulatus in Ireland available through the National Biodiversity Data Centre mapping system, click 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: 18/07/2017

Halesus digitatus (Shrank, 1781)

Halesus digitatus is one of 39 members of the Family Limnephilidae found in Ireland, and one of two members of the genus Halesus. It is a species whose larvae can be found in streams and rivers. Its substratum preference is for particulate organic matter and woody debris, in slow-flowing and standing water. Halesus digitatus has a case that is made of plant fragments and may incorporate long sticks. The larvae have a preference for neutral to alkaline water.

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

Characteristic features of the larva of Halesus digitatus 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 and setae proximal to the large primary seta on at least one femur of the 2nd and 3rd legs. Separation from Halesus radiatus is based on a range of features and may not always be possible.

Adults of Halesus digitatus can be found on the wing from September to November.

For details of distribution records of Halesus digitatus in Ireland available through the National Biodiversity Data Centre mapping system, click 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: 17/07/2017

Halesus radiatus (Curtis, 1834)

Halesus radiatus is one of 39 members of the Family Limnephilidae found in Ireland, and one of two members of the genus Halesus. It is a species whose larvae can be found in rivers, streams and lakes. Its substratum preference is for particulate organic matter and woody debris, in slow-flowing and standing water. Halesus radiatus has a case that is made of plant fragments and may incorporate long sticks. The larvae have no preference in relation to the water’s pH and can be found in brackish waters.

In temperate areas, Halesus radiatus 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 Halesus radiatus 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 and setae proximal to the large primary seta on at least one femur of the 2nd and 3rd legs. Separation from Halesus digitatus is based on a range of features and may not always be possible.

Adults of Halesus radiatus can be found on the wing from July to November.

For details of distribution records of Halesus radiatus in Ireland available through the National Biodiversity Data Centre mapping system, click 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: 17/07/2017

Glyphotaelius pellucidus (Retzius, 1783)

Glyphotaelius pellucidus is one of 39 members of the Family Limnephilidae found in Ireland, and the sole member of the genus Glyphotaelius. It is a species whose larvae can be found in rivers, streams, lakes, ponds, marshes and ditches, with fallen deciduous leaves. Its substratum preference includes particulate organic matter and plant material, in standing or slow-flowing water. Glyphotaelius pellucidus has a rather distinctive case made with disks cut from leaves on the dorsal and ventral surfaces.

In boreal areas, Glyphotaelius pellucidus has a multivoltine (more than three generations per year) reproductive cycle, and lives for up to one year. The feeding ecology of the larvae is predominantly shredding, with some predation and grazing.

Characteristic features of the larva of Glyphotaelius pellucidus 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, anterior or posterior face of at least one femur of the 2nd and 3rd legs with one or more additional setae, two strong setae on the ventral edge of the femur of the 2nd leg, 1st leg femur proximal seta pale, contrasting with the dark distal seta, while the dorsal and/or posterior faces lack additional setae.

Adults of Glyphotaelius pellucidus can be found on the wing from May to October.

For details of published records of Glyphotaelius pellucidus, 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 20/01/2017

Anabolia nervosa (Curtis, 1834)

Anabolia nervosa is one of 39 members of the Family Limnephilidae found in Ireland, and one of two members of the genus Anabolia. It is a species whose larvae can be found in rivers, lakes, ponds and canals. Its substratum preference includes plant material, particulate organic matter and woody debris, in standing or, occasionally, slow-flowing water. Anabolia nervosa has a distinctive straight case, which can either be made of plant fragments arranged to create a chevron pattern, or of sand grains with one or more long twigs attached along the length.

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

Characteristic features of the larva of Anabolia nervosa 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, anterior or posterior face of at least one femur of the 2nd and 3rd legs with one or more additional setae, two strong setae on the ventral edge of the femur of the 2nd leg, both 1st leg femur ventral setae pale, and the head with a characteristic pattern of blotches on a pale background.

Adults of Anabolia nervosa can be found on the wing from September to October.

For details of published records of Anabolia nervosa, 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 19/01/2017