Description of the last instar larva of Cordulegaster vanbrinkae and emergence place from northern Iran (Odonata: Cordulegastridae)

This dataset contains the digitized treatments in Plazi based on the original journal article HoluŠa, Otakar (2022): Description of the last instar larva of Cordulegaster vanbrinkae and emergence place from northern Iran (Odonata: Cordulegastridae). International Journal of Odonatology 25: 72-79, DOI: 10.48156/1388.2022.1917175, URL: doi.org/10.48156/1388.2022.1917175 Abstract. The larva of Cordulegaster vanbrinkae Lohmann, 1993 is described and illustrated based on fourteen final instar larvae and 49 exuviae that were collected in Gīlān, Māzandarān and Golestān provinces, in northern Iran in July 2014, July 2017 and August 2018.

Larvae of Cordulegaster vanbrinkae show signs of lateral spine on 8 th segment missing, ratio of lateral spine on 9 th segment/9 th segment is 0.03–0.15 and 5 (rarely 6) long premental setae. The characters have a clear variability and there is a noticeable overlap of character values with related species— Cordulegaste picta and Cordulegaster heros. Emergence habitat are described and analysed.