Alluaudinella bivittata, Macquart, 1843

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 52

bivittata Macquart, 1843 , Aricia

Aricia bivittata Macquart, 1843: 162 ( 1844: 319) , pl. 22, figs 1, 1a. Lectotype ♂ (not ♀ as stated by Macquart), “de l’île de France. Muséum. Collection de M. Guérin et la mienne.” ( Mauritius), by present designation, in MNHN.

MATERIAL. — Macquart described this species from ♀♀ in MNHN, Guérin-Méneville’s collection, and his own collection. His fig. 1, however, shows a ♂, and it is evident from the material in MNHN that Macquart considered the broad-fronted ♂♂ of this species to be ♀♀. There are 2 ♂♂ and 1 ♀ under no. 287 of the Macquart collection in MNHN. 1 ♂ has a disc with the accession no. 879.37, which refers to a collection made on Mauritius by Desjardins. This ♂ is in excellent condition, except for some missing tarsomeres on the mid leg. I have labelled it and designate it herewith as lectotype. The ♀, which also has the accession no. 879.37, and the 2nd ♂, which has an old disc “Île / de France / Desjardin” and is also labelled by Macquart “nigrovittata” (sic) (see Pont 1980: 738), have both been labelled as paralectotypes.

There is no material in the Macquart collection in MHNL. In the Bigot collection in OUMNH, there are six specimens, which were studied by Stein (1906: 43, where he wrote that he had seen “die aus Madagaskar stammende Type”, 1907a: 214). Although Bigot acquired some of the Guérin-Méneville Diptera collection, there is no evidence that any of these six specimens is a syntype: 1 ♂ is labelled “I Maurice ”, 2 ♂♂ have no locality, 1 ♀ is labelled “Madeg”, 1 ♀ is labelled “Nossi-Bé / Madag.”, and 1 ♀ has no locality but is labelled by Macquart as “ Aricia / bivittata”.

CURRENT IDENTITY. — The three MNHN and six OUMNH specimens all belong to Alluaudinella bivittata ( Macquart, 1843) in the sense of modern authors (e.g., Paterson 1960: 359; Couri et al. 2006: 807) to which Macquart’s original description and figures also clearly refer.