Oedematopus

Naglis, Stefan M., 2011, Revision of the genus Oedematopus (Diptera, Dolichopodidae) with the description of a new genus and a key to the Neotropical genera of Hydrophorinae, Zootaxa 2756, pp. 40-52 : 43

Key to males of Oedematopus

1 TIII strongly swollen, more than twice as wide as FIII; FI with long pale hairs; hypopygium ( Figs. 2 , 3 ): Dsur with two lobes.................................................................................................... 2

- TIII not swollen, narrower than FIII; FI ventrally with short spine-like setae; hypopygium ( Fig. 4 ): Dsur as single lobe................................................................................................ vidua Becker

2 Cross-vein dm-cu shorter than distal section of M ( Fig. 1 A); CI with apical setae of usual size; FII with multiseriate short av setae basally; hypopygium ( Fig. 2 ): Dsur strongly curved.................................... crassitibia Van Duzee

- Cross-vein dm-cu longer than distal section of M ( Fig. 1 B); CI with short spine-like apical setae; FII with uniseriate short av setae basally; hypopygium ( Fig. 3 ): Dsur almost straight....................................... moraviensis sp. nov.

Figures

FIGURE 1. Posterior part of wing: (A) Oedematopus crassitibia Van Duzee; (B) Oedematopus moraviensis sp. nov.; (C) Oedematopus vidua (Becker); (D) Oedematopiella sarae sp. nov. (scale bare = 0.5 mm).

FIGURE 2. Oedematopus crassitibia Van Duzee, male genitalia, left lateral view. Abbreviations: hy = hypandrium; ph = phallus; Lep = lateral epandrial lobe; Mep = median epandrial lobe; Dsur = dorsal surstylar lobe; Vsur = ventral surstylar lobe; po = postgonite; ce = cercus (scale bare = 0.1 mm).

FIGURE 3. Oedematopus moraviensis sp. nov., male genitalia, left lateral view (scale bare = 0.1 mm).

FIGURE 4. Oedematopus vidua (Becker), male genitalia, left lateral view (scale bare = 0.1 mm).