Janus Pannonius Múzeum Évkönyve 37 (1992) (Pécs, 1993)

Természettudományok - Nógrádi, Sára–Uherkovich, Ákos: Further examinations of Trichoptera of the Chechen-Ingoosh Republic, Russia

24 Fig. 5. Male and female genitalia of Stactobia caspersi Ulmer. a: male (Furtoug, June 13,1990, gen. prep. no. 1693) lateral, b: dorsal, c: ventral, d: tergit IX lateral, e: aedeagus lateral, f: dorsal, g: inferior appendage ventral, h: female (Furtoug, June 12, 1990, gen. prep. No. 1664) dorsal, i: processus spermataecae lateral, k: dorsal. 5. ábra. A Stactobia caspersi Ulmer hím és nőstény ivarszerve, a: hím (Furtoug, 1990. VI. 13., gen. prep. No. 1693) oldalról, b: felülről, с: alulról, d: a IX. tergit oldalról, e: aedeagus oldalról, f: felülről, g: külső ivarlebeny felülről, h: nőstény (Furtoug, 1990. VI. 12., gen. prep. No. 1664) felülről, i: a processus spermataecae oldalról, к: felülről. (SiPAHlLER and MALICKY 1977). In the Caucasus two forms live: a "robust" and a "fragile" one. These "forms" segregate enough clearly. The examined populations of the lowland belong to the "fragile form", most of the mountainous animals of these species are members of the "robust form". The latter one is 1 to 2 mm longer, it is darker and more robust. The "fragile" one is lighter. Sometimes transitional forms occur in the mountainous region. The other morphological characters of the two forms dérivâtes from each other a little. Mostly the form of aedeagus can be different, the variability of male genitalia is shown on Fig. 6. Hydropsyche instabilis Curt. The terminal of aedeagus and other parts of genitalia are variable (MEY 1988). One of our specimens from the Caucasus represents extreme variation, at the first sight this animal did not seem to be instabilis Curt. Tinodes valvatus Mart. The males of Tinodes valvatus Mart, are rather variable, but their basic characters are same both in East Turkish and Caucasian populations (Fig. 7). The female has been unknown till recent time, our Caucasian examinations helped to distinguish the females of two species, T. valvatus Mart, and T. difficilis Mart. Neither MARTYNOV (1909) nor MALICKY (1983) presented these females. The basal pattern of the tubular part differs from each other (Fig. 8). Phryganea rotundata Ulmer. The external appearance does not differ from that of Ph. grandis L. Our adults collected in Caspian Lowland look like Ph. bipuncta Retz.: they have light pale yellowish grey pattern with an ocellum on the centre of the forewing. The genitals of two species (Ph. grandis L. and rotundata Ulm.) are very similar (Fig. 9). Dinarthrum iranicum Schmid. This species was described from Iran, later it was found in Turkey too (SIPAHILER and MALICKY 1987). It was not known in Caucasus earlier. It lives at Furtoug, along a small, quick karst brooklet. Altogether 19 specimens were swept. The female was unknown earlier. She resembles to the female