Paraleptophlebia werneri Ulmer, 1920

Salmela, Jukka & Savolainen, Eino, 2013, New records of Paraleptophlebiawerneri Ulmer, 1920 and P. strandii (Eaton, 1901) from Finland (Ephemeroptera, Leptophlebiidae), Biodiversity Data Journal 1, pp. 969-969 : 969

Paraleptophlebia werneri Ulmer, 1920

Materials

Occurrence: recordedBy: J. Salmela; individualCount: 2; sex: males; lifeStage: adult; Location: country: Finland; verbatimLocality: Lapponia kemensis pars orientalis: Savukoski, Törmäoja, Ahot; verbatimLatitude: 67.8276 N; verbatimLongitude: 29.4394 E; Event: eventDate: 16.8.2012; Record Level: institutionCode: Jukka Salmela Occurrence: catalogNumber: 8607 ; recordedBy: J. Salmela; individualCount: 7; sex: males; lifeStage: adult; Location: country: Finland; verbatimLocality: Lapponia kemensis pars orientalis: Savukoski, Törmäoja, Ahot; verbatimLatitude: 67.8276 N; verbatimLongitude: 29.4394 E; Event: eventDate: 16.8.2012; Record Level: institutionCode: Kuopio Natural History Museum

Notes

The sampling locality was a pond in a rather open landscape (Fig. 1). The pond is apparently permanent, i.e. not very susceptible of drying out in summer. Its surface area was ca. 850 m2 and its maximum depth ca. 150 cm. The water was slightly brownish, colored by humic substances. There was sparse submerged vegetation, shores were wet and dominated by tall sedges and grasses. The pond was likely lacking fish and without an outlet, except for a marshy area connecting it to Törmäoja stream. The distance from Törmäoja stream was ca. 80 m. The adult males were caught from the shores of the pond by using a sweep net. No other mayfly species were present in the sample. In 2012 a sweep net sample was also collected from the shore of the stream, some 900 m north of the pond, but no P. werneri specimens were found. The sampling locality was a pond in a rather open landscape (Fig. 1). The pond is apparently permanent, i.e. not very susceptible of drying out in summer. Its surface area was ca. 850 m2 and its maximum depth ca. 150 cm. The water was slightly brownish, colored by humic substances. There was sparse submerged vegetation, shores were wet and dominated by tall sedges and grasses. The pond was likely lacking fish and without an outlet, except for a marshy area connecting it to Törmäoja stream. The distance from Törmäoja stream was ca. 80 m. The adult males were caught from the shores of the pond by using a sweep net. No other mayfly species were present in the sample. In 2012, a sweep net sample was also collected from the shore of the stream, some 900 m north of the pond, but no P. werneri specimens were found. This streamside sample included two mayfly species: P. cincta (Retzius, 1783) and Siphlonurus lacustris Eaton, 1870. However, in 2013 one P. werneri male specimen was caught from the slow flowing section of the headwater stream, some 470 m north of the pond. Larvae of P. werneri were collected from the bottom of the pond, among fine organic detritus and submerged vegetation. Larvae of this species were also collected from a nearby permanent pond, surface area 830 m2, lacking inlet or outlet brooks. Geographic distance of these two ponds is 760 meters. Two other smaller, temporary ponds in the vicinity were also sampled but no ephemeropteran larvae were found.