Hylemyia rufiventris, Macquart, 1843

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 88

rufiventris Macquart, 1843 , Musca

Musca rufiventris Macquart, 1843: 155 ( 1844: 312) , pl. 20, fig. 9 (junior primary homonym of Musca rufiventris Scopoli, 1763 ). Lectotype ♂, Mauritius (not “d’Amérique. Muséum.”, as stated by Macquart), by present designation, in MNHN.

MATERIAL. — Séguy (1937: 462) stated that the type was lost, but there are 1 ♂ and 1 ♀ under no. 1862 bis of the Macquart collection in MNHN. Each has an old hand-written tag “19.” and the accession no. 134.38. This refers to a collection from île de France ( Mauritius) made by Desjardins, and the type-locality of America given by Macquart is an error. The ♂ is labelled by Macquart “N°. 73. / Musca / rufiventris”. It has the right wing, left hind tarsomeres 2-5, and right mid leg missing. I have labelled it and designate it herewith as lectotype. The ♀ is in perfect condition, and I have labelled it as paralectotype.

CURRENT IDENTITY. — Both specimens belong to the genus Musca Linnaeus, 1758 , and M. rufiventris is a junior synonym of Musca xanthomelaena Wiedemann, 1824 (see Pont 1980: 726). Before I had studied these syntypes, I had accepted the American origin of this species and incorrectly synonymized the name with Musca domestica Linnaeus, 1758 ( Pont 1972: 7) .

The lectotype has the eye-facets strongly enlarged and the frons linear, at narrowest point, equal to one of the adjacent facets; anterior postsutural dorsocentral setae minute, hardly distinct from the ground-setulae; abdominal syntergite 1 + 2 yellow at sides, the median third occupied by a dark median vitta. The paralectotype has syntergite 1 + 2 narrowly dark medially, the median vitta dilating behind and spreading along the hind-margin; anterior postsutural dorsocentrals minute.