Chortophila geniculata, Macquart, 1851

Pont, Adrian C., 2012, Muscoidea (Fanniidae, Anthomyiidae, Muscidae) described by P. J. M. Macquart (Insecta, Diptera), Zoosystema 34 (1), pp. 39-111 : 66

geniculata Macquart, 1851 , Cordylura

Cordylura geniculata Macquart, 1851b: 244 ( 1851d: 271) , pl. 25, figs 2, 2a. Lectotype ♀ (not ♂, as stated by Macquart), “Amérique. Muséum” (actually Brazil, Mato Grosso state, Rio Paraguai), by present designation, in MNHN.

MATERIAL. — There is 1 ♀ syntype in MNHN, under no. 1892 of the Macquart collection. It has the accession no. 12.47, which refers to a collection made by de Castelnau in Brazil, Rio Paraguay, Matto Grosso state. It is labelled by Macquart “ Cordylura / geniculata / ♂. Macq. n. sp.”, and has been labelled as “ Phyllogaster ” by Séguy. It is not in good condition: there is some mould ; most of left wing, abdomen after segment 1 + 2, right mid leg and right hind leg missing; left hind leg loose and gummed to the pin by me. I have labelled it and designate it herewith as lectotype.

CURRENT IDENTITY. — The species was not recognized as a species of Muscidae either by Stein (1919) or by Séguy (1937), and was first assigned here as probably a species of Phyllogaster Stein, 1898 , by Séguy (1952: 6). Following Séguy, I assigned it to Tetramerinx Berg, 1898 (syn.: Phyllogaster Stein, 1898 , preocc.) ( Pont 1972: 35). However, so far as can be seen, there is only one pair of presutural dorsocentral setae, which would exclude this species from the Tetramerinx group of genera. Further characters are one postsutural intra-alar seta; a pair of broad black paramedian vittae on the scutum; hind tibia with one very long anterodorsal seta and with the dorsal preapical placed high on the tibia (separated by its own length from tip of tibia). It therefore appears to belong to the genus Cordiluroides Albuquerque, 1954 , and this information was communicated to Lopes & Couri (1989: 2; see also Carvalho et al. 1993: 118; 2005: 186, 187). Couri & Pamplona (1992: 257) included C. geniculata in a key to the species of Cordiluroides and gave some notes based on Macquart’s original description.