CLADOENDESIS OF EPHEMEROPTERA

ABC

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Ochernova

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna Bidentiseta Furcatergaliae  
Fimbriatotergaliae Caenotergaliae Neoephemera/fg1 - Ochernova)

Nomen hierarchicum: Ochernova/g(1) [g:1998]

In circumscription fits:

gen. Ochernova Bae & McCafferty 1998: 59

Ochernova/g(1): Kluge 2004: 275


References. Kazlauskas 1963: ; Kluge 2004:


Autapomorphies of Ochernova.

(1) Patella-tibial suture (initially present on middle and hind legs) is lost on all legs of larva, subimago and imago. Non-unique apomorphy (see Index of characters [1.2.18]).

(2) Larval legs have very long slender femora and tibiae [see (1)]. Larvae of the single species are adopted for inhabitancy inside accumulations of dead plant remainders in rivers running through sandy deserts.

Plesiomorphies of Ochernova. In larva: thoracic terga without protuberances (unlike Neoephemera/fg2); caudalii without secondary swimming setae (unlike Potamanthellus/g1). In imago and subimago: gonostyli are not diminished; median incision of penis is small (unlike Potamanthellus/g1); paracercus is well-developed (unlike Leucorhoenanthus and Potamanthellus/g1). Claw structure of male imago is unknown.

Size. Fore wing length 9 mm.

Distribution. Middle Asia (plain desert rivers of Turkmenistan, Kazakhstan, Tajikistan).


Nominal species in Ochernova/g(1): 1 species

tshernovae Kazlauskas 1963 [Neoephemera] ,/,/ 


See also:

Neoephemera/fg1 INCERTAE SEDIS

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