Aeshna juncea (L.) and A. subarctica elisabethae Djak. in the Rokytecka Slat, Šumava, Czech Republic (Anisoptera: Aeshnidae)

On 26 July 1997 I visited this moorland locality (alt. 1000-1100 m) in the Bohemian Forest National Park. The weather was cloudy, cool and windy, but I was able to search for dragonfly exuviae in some bogs of this vast area. These were sitting on Carex limosa and Scheuchzeria palustris, while some larval cast-off skins of younger instars drifted on the water surface. The 14 specimens collected were as follows: – A. juncea: 1 3 F1-F2; 1 9 F2-F3; 1 9 F1-F2, 3 3 and 2 9 exuviae; – A. s. elisabethae: 1 9 FI; 3 3 and 2 9 exuviae. In the bad weather, a single Leucorrhinia dubia (Vander L.) was on the wing. A. subarctica elisabethae is well known from the Czech Republic (cf. V. TEYROVSKŸ, 1978, Acta faun. ent. Mus. nat. Prague [Suppl.] 4: 31- 33); in Bohemia it was reported from the Kruâné hory mountains (A. SCHÖTTNER, 1937, Ent. Rundsch. 55; 87-88). In the vicinity of the Bohemian National Park, A. juncea is known from the National Park “Bayerischer Wald”, Germany (cf. L. DIRNFELDER, 1982, Libellula 1: 52-55; — E. SCHMIDT, 1978, Notul. odonatol. 1: 30). A. subarctica, however, only occurs at elevations above 1050 m (M. WITTMER, 1991, Nationalpark 70[1]: 22-25). It seems, the uppermost moorlands in the Bohemian National Park offer adequate conditions for the requirements of this species.