Brachypalpus pilosus, Macquart, 1851

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 80

pilosus Macquart, 1851 , Brachypalpus

Brachypalpus pilosus Macquart, 1851b: 233 ( 1851d: 260) , pl. 23, figs 18, 18a. Lectotype ♂, South America, Strait of Magellan (not “Océanie. Triton Bai. Durville. Muséum.”, as stated by Macquart), by designation of Albuquerque (1951: 9), in MNHN.

MATERIAL. — There is 1 ♂ under no.1875 of the Macquart collection in MNHN. It has no accession disc, but has a

printed label with the data “Museum Paris / Magellan / Dumont d’Urville 1841”, and is labelled by Macquart “ Brachypalpus / pilosus. ♂. / Macq. n. g., n. sp.”. It is considerably damaged: left antenna, left wing, part of right wing, left foreleg, and both mid legs missing. It was listed by Albuquerque (loc. cit.) as “holótipo ♂ ”, and this statement has to be interpreted as lectotype designation by inference. It was also studied by Pont (1967: 186).

CURRENT IDENTITY. — Albuquerque (1951: 7-9, figs 9-14) was the first to point out that this is a South American species, and he identified it as a good species of Palpibracus Rondani,1864 (syns: Brachypalpus Macquart, 1851 , preocc., and Darwinomyia Malloch, 1922 ), close to P. chilensis (Bigot, 1885) . On the basis of Albuquerque’s redescription, Carvalho (1989a: 331, 347) included the species in a revision of Palpibracus , but he was not able to see the species itself. I was able to borrow the lectotype and study it in the BMNH, where I could compare it with virtually all the species of Palpibracus included in the revisions of Malloch (1934) and Carvalho (1989a). In spite of the absence of the mid legs, the lectotype can be identified as P. reynoldsi ( Malloch, 1934) , and this synonymy has been recorded by Carvalho et al. (1993: 30; 2005: 57).

The lectotype of P. pilosus has the eyes very long-haired; hind tibia with posteroventral hairs only on apical half; hind femur yellow on basal quarter and at tip; hind tibia yellow at base and on apical third. These are all characteristic features of P. reynoldsi , which was described from Tierra del Fuego Island and has also been recorded from Santa Cruz province ( Argentina) and Magallanes province ( Chile) ( Carvalho 1989a: 349) .