Figure 13 from: Hrivniak Ľ, Sroka P, Bojková J, Godunko RJ (2020) Identification guide to larvae of Caucasian Epeorus (Caucasiron) (Ephemeroptera, Heptageniidae). ZooKeys 986: 1-53. https://doi.org/10.3897/zookeys.986.56276

Figure 13 Epeorus (Caucasiron) nigripilosus, larva: A habitus in dorsal view B habitus in ventral view C habitus in lateral view D head of male in dorsal view E head of female in dorsal view F, –G middle leg in dorsal view H, –I abdominal terga (arrows point on dorso-posteriorly extended lateral stripes) J abdominal sterna II–VI K gills VII (in natural position from ventral view).