Insecta - Odonata - Sieblosiidae
Alternative combinations: Heterophlebia jucunda, Sieblosia jucunda
Full reference: H. A. Hagen. 1858. Zwei Libellen aus der Braunkohle von Siblos. Palaeontographica 5(5):121-124
Belongs to Stenolestes according to A. Nel and J. C. Paicheler 1994
Sister taxa: Stenolestes adygeianensis, Stenolestes belligaudi, Stenolestes camoinsi, Stenolestes cerestensis, Stenolestes coulleti, Stenolestes dauphinensis, Stenolestes falloti, Stenolestes fasciata, Stenolestes fischeri, Stenolestes hispanicus, Stenolestes iris, Stenolestes ronzonense
Type specimen: Its type locality is Sieblos, which is in an Oligocene terrestrial horizon in Germany
Ecology: fast-moving volant carnivore-insectivore
Average measurements (in mm): forewing length 35.0