Janus Pannonius Múzeum Évkönyve 28 (1983) (Pécs, 1984)

Természettudományok - U. Nógrádi, Sára: The caddisfly fauna of the Valley Nagy-mély-völgy, Mecsek Mountains, Hungary (Trichoptera)

20 SARA и. NÓGRÁDI able species resembling W. trianguliiera McLachlan. But is has been pointed out that W. trianguliiera lives the west of Hungary and the domestic publication concerning this species are erroneous. So Safari's (1939) data for W. triangulifera of Mecsek Mountains is to be struck out. Stenophylax meridiorientalis Malicky — Malicky (1980) has demonstrated that the name of Stenophylax speluncarum McLanchlan is invalid and therefore he described this species as Stenophylax meridiorientalis. It is a common caddisfly on the South Transdanubia. Anabolia iurcata Brauer — This species occurs on the larger part of Europe but it doesn't live on the western and northern parts (Botosaneanu — Malicky 1978). The literature dealing with the fauna of Bakony, Bükk and Zemplén Mountains (Újhelyi 1974, 1978, Kiss 1978, Oláh 1967) didn't mention this species but it did Anabolia laevis Zetterstedt (or one of its synonims). The A. laevis may occur in North Hungary (as it lives in the Carpathians, too), but the bulk of data maybe concerns A. iurcata Brauer. AU Anabolia material from West and South Transdanubia proved to be Anabolia iurcata Brauer. Chaetopteryx major McLachlan — it is the subdominant species of the examined area. Steinmann (1970) did not mention it yet. This species occurs all over the South and Central Transdanubia, Újhelyi (197Э) gives its data from Bakony Mountains. We have collected it on several points of our environment, and it is very common in October and November. Chaetopteryx schmidi Botoçcmeanu. The species was described in 1957, occurs in the Southern Carpathians. A subspecies (ssp. noricum Malicky, 1976) was published from the Southeastern Alps. The first Hungarian specimen, a male, was collected on 26th November 1982. It was not flying but climbing up on the sheet after sunset, during the collection with lamp. After closing of the manuscript of this paper, in 1983 and 1984, the species was found on some new localities in the Western and Eastern Mecsek Mountains and it was described by the specip. с mens 102 16,5 91 14,7 69 11,2 61 9,9 59 9,6 36 5,8 32 5,2 22 3,6 20 3,2 authoress as a new subspecies: Chaetopteryx schmidi mecsekensis Nógrádi, 1984. 2. Quantitative conditions and ecological remarks The complete caddisfly material was captured, preserved and determined during the year 1982. The next sequence of dominance was calculated on the basis of the 616 collected specimens: species Rhyacophila fasciata Hagen Chaetopteryx major McLachlan Stenophylax meridiorientalis Malicky Tinodes pallidula McLachlan Tinodes unicolor Pictet Plectrocnemia conspersa Curtis Stenophylax permistus McLachlan Philopotamus variegatus Scopoli Potamophylax nigricornis Pictet Specimens of further 19 species were between 6 and 1. Deriving from the character of collecting spot, all frequent species develop in brooks and springs. The ecological graph (Fig. 5) shows the ecological composition of the caddisfly community. The bulk of specimens live in brooks or springs, only one or two specimens of such species were captured wich live in stagnant waters, these are „stranger" elements of this community. Summary The Valley Nagy-mély-völgy runs from the south to the north with a permanent brook in it. Authoress examined the caddisflies of this area on the basis of her and Uherkovich's collections. These collections yielded 34 species. All the collections in 1982 were quantitative ones. All the specimens of each species are given. Brief ecological analysis is presented, too.