Paraleptophlebia Lestage 1917

Tiunova, Tatiana M. & Kluge, Nikita, 2016, Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae), Zootaxa 4098 (2), pp. 369-382 : 372

Genus Paraleptophlebia Lestage 1917

Type species: Ephemera cincta Retzius 1783 .

In circumscription corresponds to subgenus Paraleptophlebia sensu Kluge 1997 .

Diagnosis. Larva. (1) Third segment of maxillary palp widest in middle part ( Fig. 8 ) (the same in Leptophlebia ; in contrast to Neoleptophlebia , Habrophlebiodes , Dipterophlebiodes and Gilliesia ).

(2) Tergalii V-shape, i.e. with two slender lobes separated nearly up to base ( Figs 14–22 ) (in contrast to Leptophlebia , whose tergalii II–VII have lobes widened; in contrast to Neoleptophlebia , Habrophlebiodes , Dipterophlebiodes and Gilliesia , whose tergalii have lobes less separated).

Male imago. (3) Hind wing fully developed, without costal projection, with Sc terminating near apex ( Fig. 23 ) (the same in Leptophlebia and Neoleptophlebia ; in contrast to Habrophlebiodes , Dipterophlebiodes and Gilliesia ).

(4) Penis deeply divided, with a pair of ventral appendages arising from apex of each penis lobe and directed proximally ( Figs 26–30 ) (similar to Leptophlebia , possibly synapomorphy).

Distribution. Holarctic.

Figures

FIGURES 1 – 13. Paraleptophlebia falcula, larvae. 1, labrum, dorsal view; 2, 3, left and right mandibles, dorsal view; 4, 5, incisors and kinetodonts of left and right mandibles; 6, maxillary palp, ventral view; 7, labium, dorsal view; 8, segments 2 and 3 of labial palp; 9, hypopharynx and superlinguae, dorsal view; 10, femur of foreleg; 11, foreclaw, dorsal view; 12, posterior margin of abdominal tergum IV; 13, abdominal sternum IX, female.

FIGURES 14 – 15. Paraleptophlebia falcula, larvae, habitus. 14, dorsal view; 15, ventral view.

FIGURES 16 – 22. Paraleptophlebia falcula, larvae, tergalii of I, II, III, IV, V, VI and VII pairs.

FIGURES 23 – 25. Paraleptophlebia falcula, male imago. 23, lateral view; 24, dorsal view; 25, ventral view.

FIGURES 26 – 30. Paraleptophlebia falcula, genitals of male imago. 26 – 28, specimens from Transbaikal Kray; 29, 30, specimen from Komi Republic. 26, 29, ventral view; 27, penis, ventral view; 28, penis, dorsal view, 30, lateral view.