Chapter 1 - Núria BONADA

Trichopteran species list
Pupae from Llobregat basin were found in a small calcareous stream tributary of the
Llobregat River, which has a good biological quality. The sampling site is not in the
Pyrenees region itself but very close.
Subfamily Chimarrinae Rambur, 1842
Chimarra Stephens, 1829
26- Chimarra marginata (Linnaeus, 1767)
MATERIAL STUDIED: 786L, 1P♂ (X), 2♂ (V, VIII)
Llobregat Basin: L42, L44, L45, L60a, L61
Mijares Basin: MI5 MI6, MI9
Turia Basin: TU10, TU12
Júcar Basin: JU2, JU3, JU4, JU8, JU13, JU15, JU17, JU19
Segura Basin: SE5
Almanzora Basin: AL14, AL15
Aguas Basin: AG1, AG2, AG7
Adra Basin: AD3
Guadalfeo Basin: GU7, GU9
DISTRIBUTION AND ECOLOGY
Western European and North African species. In the Iberian Peninsula is widely
distributed.
In sampled Mediterranean basins C. marginata were found in middle and lower parts of
rivers with a calcareous/sedimentary geology, which is in accordance with records of
many authors (see Vieira-Lanero, 2000). It is a species tolerant to conductivity, suspended
solids and phosphates but sensitive to high values of ammonia (Bonada et al., Chapter 8).
Superfamily HYDROPSYCHOIDEA Curtis, 1835
Family HYDROPSYCHIDAE Curtis, 1835
Subfamily Hydropsychinae Curtis, 1835
Hydropsyche Pictet, 1834
27- Hydropsyche cf. acinoxas Malicky, 1981
MATERIAL STUDIED: 4P♂ (IV, VIII)
Tordera Basin: ToM7, ToM8, ToM12
Besòs Basin: B8a
TAXONOMIC REMARKS
The pupae found fit quite well under H. acinoxas, although there are slight differences in
the X segment difficult to evaluate because only the holotype is known (M.A. González
pers. comm.). Larvae collected in these sampling sites and sclerites found from pupae,
were very similar to H. dinarica and H. instabilis. The apotome is less quadrangular than
H. dinarica but not as rounded as in H. instabilis. In the apotome a light posterior area Vshaped
can be distinguish, more conspicuous than in H. dinarica.
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