Courtoisia Barraclough, 1993

Marshall, S. A., 2019, Micropezidae (Diptera, Nerioidea) of Mauritius, with a description of Paraeurybata new genus, Zootaxa 4624 (4), pp. 576-582 : 577

Courtoisia Barraclough

Courtoisia Barraclough, 1993: 122 . Type species: Calobata apicalis Macquart, 1851 .

Courtoisia was erected for two very similar species of Taeniapterinae ( Calobata apicalis ( Fig. 3A ) and Calobata trinotata ( Fig. 3B )) endemic to the Mascarene Islands, both described by Macquart from Réunion and probably closely related to the continental Afrotropical genera Cephalosphen Hennig and Erythromyiella Verbeke ( Barraclough, 1993) . Only one Courtoisia specimen, a female recorded at Magenta, Mauritius in 1963 and identified by Barraclough as C. apicalis , has been collected since the original description; Barraclough (1993) speculated that the genus might be extinct. Réunion and Mauritius have been extensively sampled for all groups of Diptera over the past decade, without turning up any further specimens of Courtoisia . Courtoisia appears to be distinctive for the maculate wing, the duplicated postalar setae (as in Cephalosphen Hennig ) and the row of short setae on the gena. External features of both species were thoroughly redescribed and illustrated by Barraclough (1993) and, in the absence of new material, there is nothing further to add here.

Figures

FIGURE 3. A, Courtoisia apicalis (Macquart) holotype. B, Courtoisia trinotata (Macquart) lectotype. Specimens from the Bigot collection, Oxford. Photographs by Zoë Simmons