Review of Oculogaster Kluge 2016 (Ephemeroptera, Baetidae, Procloeon Bengtsson 1915) Author Kluge, Nikita J. text Zootaxa 2020 2020-07-29 4820 3 401 437 journal article 8958 10.11646/zootaxa.4820.3.1 fd413580-2960-463f-a924-8c27eaeafc6e 1175-5326 4397861 44BD1E07-C9F3-4488-936E-819C2FCA18C8 Procloeon ( Oculogaster ?) sp. «Thailand-3» ( Figs 134–137 ) Procloeon sp. n. 3: Kluge 2016: 514 (larva). Material examined. THAILAND , Kanchanaburi province , Erawan Falls , 2–4.II.2015 , coll. N. Kluge & L. Sheyko : 1 larva ( ZIN ) . Description and comparison. Femur with 2 apical setae (as in other Oculogaster ); other characters of Oculogaster (eggs and venation of pterostigma) unknown. Mandibles more stout than in other species ( Figs 134–135 ). Maxillary palp 3-segmented, with 3rd segment slightly shorter than 2nd segment ( Fig. 136 ). Hind protoptera absent. Denticles on claw relatively large, occupying ½ of claw length ( Fig. 137 ) (in contrast to sympatric species P. album ). Lateral denticles present on abdominal segments VIII–IX (in contrast to other described Asian Oculogaster ). Cerci with long lateral spines (as in other Procloeon /g1). Structure of tergalii unknown.