Folia Historico-Naturalia Musei Matraensis - A Mátra Múzeum Természetrajzi Közleményei 6. (1980)

Kiss, O.: A Mátra hegység Ilona-völgyének Trichopterai

Locality Ig n ear the plot for making a fire (Fig. 6.) The stream bed of 2—2,5 m width is shady with rapid water flow and vaoried substrate mosaics; its depth is 10—15 cm at some places. On the banks Urti dioica is found. The temperature of the water was 13.0 °C on 18th July, 1977 and 9.4 °C on 2nd October, 1977. The species collected there are: Bhyacophila polonica MAC LACHLAN, B. obliterata MAC LACHLAN, Agapetus comatus PICTET, Beraemyia hrabei MAYER, Plectrocnemia conspersa CURTIS, Hydropsyche angustipennis CURTIS, Odontocerum albicorne SCOPOLI, Halesus digitatus SCHRANK, Potamophylax latipennis CURTIS, Stenophylax permistus MAC LACHLAN, Sericostoma personatum PENCE, Silo pallipes FABR., Crunoecia irrorata CURTIS and Athripsodes bilineatus LINNE Fig. 4. Locality I

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. 1. large stones, 2. small stones and gravel, 3. sand, 4. micro-waterfall. 120