Musca dorsomaculata, Macquart, 1843

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 60

dorsomaculata Macquart, 1843 , Musca

Musca dorsomaculata Macquart, 1843: 152 ( 1844: 309) , pl. 20, fig. 7. Lectotype ♂, “de l’île de France. M. Desjardins. Muséum.” ( Mauritius), by designation of Pont & Matile (1976: 744), in MNHN.

MATERIAL. — As discussed by Pont & Matile (1976: 745), there are 3♂♂ and 3 ♀♀ syntypes in the Macquart collection in MNHN, under no. 984. The ♂ lectotype is in good condition, lacking the right mid leg. It is labelled by Macquart “N°. 70. / Musca / dorsomaculata.”.

In addition to these six specimens, there were two specimens (1 ♂ and 1 ♀) in the series that were not syntypes and which belong to Musca domestica subsp. domestica Linnaeus, 1758 . In box G.21 of the Macquart collection in MHNL, there is 1 ♀ standing over the label “ M. dorsomaculata / M.? P. isle de fr.”. This is presumably a duplicate from the type-series retained by Macquart, and I have labelled it as a paralectotype. It is in poor condition.

CURRENT IDENTITY. — The lectotype and six paralectotypes are conspecific, and belong to Musca xanthomelaena Wiedemann, 1830 , as currently understood ( Emden 1965: 74; Zielke 1971: 128). The lectotype has abdominal syntergite 1 + 2 dark on median third and broadly yellow laterally; anterior postsutural dorsocentral setae minute; upper inner eye facets strongly enlarged, and frons at narrowest point much narrower than diameter of anterior ocellus.