Larvae of Simulium ornatum with parasitic juveniles of Isomermis lairdi, Selska Reka River. A Fixed in 70% alcohol material, 03.08.2012 B Live host larva, 12.09.2013. Scale bars: A: 2 mm; B: 1 mm.

 
 
  Part of: Gradinarov D (2014) The mermithid species Isomermis lairdi (Nematoda, Mermithidae), previously only known in Africa, found in Europe. ZooKeys 454: 1-11. https://doi.org/10.3897/zookeys.454.7577