Hydrotaea cyaneiventris, Macquart, 1851

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 57

cyaneiventris Macquart, 1851 , Hydrotoea

Hydrotoea cyaneiventris Macquart, 1851b: 236 ( 1851d: 263) . Lectotype ♂, “ Chili. M. Gay. Muséum.” ( Chile), by present designation, in MNHN.

MATERIAL. — There is 1 ♂ syntype under no. 1870 of the Macquart collection in MNHN. It has the accession no. 15.43 ( Chile, collector Gay), and has been labelled by Macquart “ Hydrotoea / cyaneiventris / ♂. Macq. n. sp”. It is in very poor condition. At one time, it must have become detached from its pin, and it has been gummed to a piece of card: it is dirty and with some mould ; most of the scutum has been destroyed and much of the left wing has also gone; the abdomen is very squashed and distorted; as it is mounted on its side it is difficult to see precisely which legs are missing, but apparently the left three legs are present and the right three are missing. I have labelled it and designate it herewith as lectotype.

CURRENT IDENTITY. — Hydrotoea cyaneiventris is indeed a species of Hydrotaea Robineau-Desvoidy, 1830 , as is shown by the characteristic ♂ fore femoral ornamentation, and with its dark metallic colour and dark calypters it has apparently been correctly interpreted by subsequent authors (e.g., Malloch 1934: 301; Palka-Rocha & Carvalho 1994: 5-7, figs 1, 5, 9, 13, 18, 23). Séguy (1937: 304) redescribed the type, but synonymized it incorrectly with the European H. cyrtoneurina (Zetterstedt, 1845) .