Polycentropus

Curtis, 1835

tube maker caddisflies

Polycentropus is a large of () in the , containing more than 190 described . The genus is commonly referred to as 'tube maker caddisflies' due to the silken retreat structures constructed by . Species occur across multiple continents including Europe, Asia, and South America. Larvae are predatory and inhabit running waters, where they build silken retreats with capture to trap .

Polycentropus denningi 01 by Libby Avis, Centre for Biodiversity Genomics. Used under a CC0 license.

Polycentropus variegatus 04 by Libby Avis, Centre for Biodiversity Genomics. Used under a CC0 license.

Polycentropus variegatus 01 by Libby Avis, Centre for Biodiversity Genomics. Used under a CC0 license.

Pronunciation

How to pronounce Polycentropus: /ˌpɒlɪˈsɛntrəpəs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

are distinguished from other by their predatory habit and associated silken retreat construction, combined with specific morphological characters of the and . -level identification requires detailed examination of larval using regional ; three species occur in Greece (P. excisus, P. flavomaculatus, P. ierapetra), with diagnostic characters established for this region. require identification using genitalic morphology.

Images

Habitat

Running waters (lotic environments) including streams and rivers. Specific microhabitat preferences vary by but generally involve areas where can construct stable silken retreats.

Distribution

Widespread across the Palearctic region including Europe and western Asia; also recorded from South America (Colombia: Boyacá, Cundinamarca, Huila, Tolima, Magdalena, Antioquia, Chocó). GBIF records indicate presence in Denmark. The is represented in Greece by at least three .

Diet

Predatory (larval stage). are active that use silken capture to trap .

Behavior

construct silken retreats and capture in running waters for capture. This tube-building gives the group its .

More Details

Taxonomic scope

With over 190 described , Polycentropus represents a significant radiation within the . Species-level relies heavily on genitalic characters; larval descriptions remain incomplete for many species.

Research gaps

Larval descriptions are lacking for numerous ; ecological data beyond basic associations are sparse for most of the . Most detailed studies on European species.