Contribution to the dragonfly, aquatic beetle and caddisfly fauna of the Jászság, Hungary (Odonata, Coleoptera: Hydradephaga and Hydrophiloidea, Trichoptera)

Contribution to the dragonfly, aquatic beetle and caddisfly fauna of the Jaszsag, Hungary (Odonata, Coleoptera: Hydradephaga and Hydrophiloidea, Trichoptera)