Chapter 1 - Núria BONADA

Subfamily Theliopsychinae Weaver, 1993
Crunoecia McLachlan, 1876
61- Crunoecia irroata (Curtis, 1834)
MATERIAL STUDIED: 3L
Besòs Basin: B29
Trichopteran species list
DISTRIBUTION AND ECOLOGY
Central and southern European species. In the Iberian Peninsula it is restricted to
northern basins.
This species has been recorded at medium and higher altitudes (Vieira-Lanero, 2000). In
sampled areas, it has been found in a mountainous and pristine area from Besòs basin.
Family LIMNEPHILIDAE Kolenati, 1848
Subfamily Drusinae Banks, 1916
Drusus Stephens, 1837
62- Drusus bolivari (McLachlan, 1880)
MATERIAL STUDIED: 17L
Segura Basin: SE1, SE4
DISTRIBUTION AND ECOLOGY
This species is distributed in the Iberian Peninsula, Pyrenees and France. In the Iberian
Peninsula it has been recorded in northern, central and southern basins. In our sampled
basins it has been only collected in Segura basin.
Vieira-Lanero (2000) found specimens from D. bolivari only in headwater reaches at high
altitudes, which is coincident with our records, because the specimens from Segura
basins were found in pristine and calcareous headwaters over 1000 m of altitude.
63- Drusus discolor (Rambur, 1842)
MATERIAL STUDIED: 5L
Ter Basin: T10, T18
Noguera Ribagorçana Basin: OUT200m
DISTRIBUTION AND ECOLOGY
Central and southern European species. In the Iberian Peninsula only has been recorded
in the north.
This species prefers cold headwater reaches with high slopes (Vieira-Lanero, 2000). In our
sampled basins it appears as a species with a narrow ecological profile and sensitive to
pollution, present over 1200m of altitude.
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