Pseudocentroptiloides Jacob 1987

Kluge, Nikita J., 2025, Contribution to the knowledge of psammophylous representatives of Procloeon Bengtsson 1915 - Psammonella Glazaczow 1987 and Pseudocentroptiloides Jacob 1987 (Ephemeroptera: Baetidae), Zootaxa 5691 (3), pp. 449-494 : 484

Subgenus Pseudocentroptiloides Jacob 1987

( Figs 1 , 18–24 , 25–26 , 207–209 , 213–216 )

Subgenus Pseudocentroptiloides Jacob (in Jacob & Glazaczow) 1987: 203 (larva).

Type species: Pseudocentroptilum shadini Kazlauskas 1964 .

Diagnosis. See Jacob & Glazaczow (1987).

Composition. Palaearctic species Procloeon ( Pseudocentroptiloides) shadini ( Kazlauskas 1964) and two Nearctic species, P. usa Waltz & McCafferty 1989 and P. morihari Wiersema & McCafferty 1998 .

Figures

FIGURES 1–8. Procloeon s. l.: larval exuviae of distal part of cercus. 1, P. (Pseudocentroptiloides) shadini (Kazlauskas 1964); 2, P. macronyx (Kluge & Novikova 1992); 3, P. heterophyllum (Kluge & Novikova 1992); 4, P. pulchrum (Eaton 1885); 5, P. albisternum (Novikova in Tshernova et al. 1986); 6, P. pennulatum (Eaton 1870); 7, P. chinensis (You & Gui 1995); 8, P. maritimum (Kluge 1983).

FIGURES 9–24. Larval head. 9–17, Procloeon macronyx; 18–24, Procloeon (Pseudocentroptiloides) shadini. 9 and 18, head, lateral view; 10 and 19, labrum; 11–12 and 20–21, left and right mandibles; 13 and 22, hypopharynx with superlinguae; 14 and 23, labium (ventrally at left, dorsally at right); 15 and 24, maxilla; 16–17, individual variability of maxillary palps.

FIGURES 25–28. Maxillae. 25–26, Procloeon (Pseudocentroptiloides) shadini; 27–28, Procloeon (Psammonella) diplofolium sp. nov. (25, 27, ventral view; 26, 28, median view).Abbreviations: can, three maxillary canines; can.cr, transverse crest formed by fused canines; ds1, ds2, ds3, dentisetae (part of medio-dorsal setal row); l.s.cr, transverse setal crest laterad of canines; m-d, bases of medio-dorsal setal row; m-v, bases of medio-ventral setal row; m.s.cr, transverse setal crest mediad of canines.

FIGURES 207–212. Imaginal abdomen. 207–209, Procloeon (Pseudocentroptiloides) shadini from Lithuania (207–208, males; 209, female); 210–212, Procloeon macronyx (210, male from Kazakhstan; 211, male from Lithuania; 212, female from Lithuania).

FIGURES 213–216. Eggs of Procloeon (Pseudocentroptiloides) shadini. 213–215, under scan electronic microscope (213–214, fragments of destroyed girdle); 216, in transmitted light, slide in Canadian balsam (optic section and surface view combined).