Cardopomyia, Kertesz

Hauser, Martin, Woodley, Norman E. & Fachin, Diego A., 2017, Taxonomic changes in African Stratiomyidae (Diptera), Zootaxa 4263 (1) : -

Genus CARDOPOMYIA Kertész

Cardopomyia Kertész, 1916: 178 . Type species, Cardopomyia robusta Kertész, 1916 , by original designation.

Physometopon Lindner, 1966b: 22 . Type species, Physometopon vesicularis Lindner, 1966b , by monotypy. Syn. nov.

Cardopomyia parvicornis (Lindner) . Comb. nov.

Pseudoxymyia parvicornis Lindner, 1959: 88 . HT ♂ [ MNHN]: Madagascar: Ouest, Forêt de l’Ankarafantsika, Tsaramandroso.

Cardopomyia robusta Kertész.

Cardopomyia robusta Kertész, 1916: 179 . HT ♀ [ HNHM, destroyed]: Madagascar . Physometopon minor Lindner, 1968: 16 . ST 1 ♂ [SMNS], 1 ♀ [ MNHN]: Madagascar: Behara. Syn. nov.

Cardopomyia vesicularis (Lindner) . Comb. nov.

Physometopon vesicularis Lindner, 1966b: 22 . HT ♂ [MNHN]: Madagascar: Famponambo. Correct original spelling ( Woodley, 2001: 131).

Physometopon vesicalis: Lindner, 1966b: 22 . Incorrect original spelling.

When Lindner described Pseudoxymyia , he compared it with the South African genus Oxymyia Kertész and included two species, P. flavitarsis and P. parvicornis , in the genus. After examining the type specimens of P. flavitarsis and P. parvicornis [MNHN], it became clear that the two species do not belong in the same genus. The vein R2+3 originates beyond the crossvein r-m in P. parvicornis , while in P. flavitarsis this vein originates before the crossvein. The compact body shape and the white arista place P. parvicornis clearly in Cardopomyia .

In the description of Physometopon minor, Lindner stated that this is a small version of P. vesicularis and listed differences in the coloration of the legs and the setae on the thorax. We studied a male syntype [SMNS] and it is conspecific with Cardopomyia robusta , which is by far the most commonly collected Stratiomyidae from Madagascar.

We did not examine the holotype of Physometopon vesicularis , but we studied a male specimen identified as this species by Lindner and compared this with the description. It fits very well with material we have on hand from Madagascar, except that in the original description vein R4 is absent, while in most specimens of Cardopomyia the vein is present, but in rare cases the vein can be absent. Lindner (1968:16) stated that he found two males and one female of P. vesicularis in the Paris collection and that they are identical to the type specimen, except that they all have vein R4 present and therefore he corrected the diagnosis to having R4 normally present. Thus, we consider P. vesicularis a member of the genus Cardopomyia .