Folia Historico-Naturalia Musei Matraensis - A Mátra Múzeum Természetrajzi Közleményei 8. (1983)

Kiss, O.: A study of the Trichoptera of the Szalajka Valley near Szilvásvárad as indicated by light trap material

Table i. The family distribution of the species caught in the light trap Family Number of species D % Number of ind. D °/o i. Limnephilidae 20 43/47 1785 43,36 2. Rhyacophilidae 5 10,86 408 9,45 3. Hydropsychidae 4 8,69 1533 35,52 4. Polycentropodidae 4 8,69 8 o,i8 5. Lepidostomatidae 3 6,52 3 0,06 6. Leptoceridae 2 4,34 2 0,04 7. Psychomydae 2 4/34 38 0,88 8. Hydroptilidae 1 1,17 3 0,06 9. Phryganeidae 1 2,17 5 0,11 10. Coeridae 1 2,17 177 4,10 11. Sericostomatidae 1 »,I7 31 0,32 12. Beraeidae 1 2,17 1 0,02 13. Odontoceridae 1 3,17 320 7,41 Table 1 shows that Limnephilidae and Rhyacophilidae have the largest number of species (20 and 4 respectively) while Hydiopsychidae, Polycentiopodidae and Lepidostomatidae have a smaller number of species (4, 4 and 3 resp.) From the point of view of the number of individuals Limnephilidae precede Hydiopsychidae (1785 and 1533, resp.) and both are followed by Rhyacophilidae (408.) Table 2. The number of individuals and the values of dominance expressed in percentage. Species Numer of individuals D °/o Hydropsyche instabilis Halesus digitatus Limnephilus lunatus Odontocerum albicornis Rhyacophila obliterata Limnephilus rhombicus Silo pallipes Rhyacophila iasciata Limnephilus flavicornis Limnephilus auricula Limnephilus ignavus Anabolia laevis Ecclycopteryx madida Sericostoma personatum 15. Chaetopteryx fusca 16. Micropterna nycterobia Tinodes sp. (?) Hydropsyche angustipennis Rhyacophila tristis 20. Lype reducta 21. Potamophylax nigricornis 22. Rhyacophila pubescens 23. Glyphotaulius pellucidus 24. Neuronia ruficrus 1. 2. З. 456. 78. 910. 11. 12. 1317. 18. 19 1509 34,97 843 19,53 346 8,01 320 7,41 268 6,21 256 5,93 177 4,10 116 2,68 98 2,27 46 1,06 42 o,97 37 0,85 34 0,78 32 o,74 26 0,60 23 0,53 аз o,53 i9 o,44 15 0,34 15 0,34 9 0,20 7 0,16 6 0,13 S 0,11 103