Table 2 in First record of Paegniodes Eaton, 1881 (Ephemeroptera, Heptageniidae) from Thailand with description of a new species

Table 2. Larval characters of Paegniodes sapanensis sp. nov. compared with known species (Nguyen and Bae 2004; Ma et al. 2018).
SpeciesP. cupulatusP. daoP. sapanensis sp. nov.DistributionChinaVietnamThailandMandibleswithout dense hairlike setal field on lateral marginwith dense hairlike setal field on lateral marginwithout dense hairlike setal field on lateral marginBasal segment of maxillary palpwithout dense hairlike setal fields on anterior and posterior marginswith dense hairlike setal fields on anterior and posterior marginswithout dense hairlike setal fields on anterior and posterior marginsNumber of comb-shape setae on the crown of the galea-lacinia9unknown8Shape of labial palp segment IIapex with broad projectionapically roundedapex with broad projectionNumber of apical denticles of tarsal claw3unknown2-3Lamellae of gill I1/3rudimentary1/4