Procanace pninae Mathis & Freidberg, 1991

Munari, Lorenzo, Kirk-Spriggs, Ashley H. & Mcgregor, Gillian K., 2021, The surf flies of the Mascarene Islands (Diptera: Canacidae: Canacinae), with the description of a new species, Zootaxa 4990 (3), pp. 563-570 : 568

Procanace pninae Mathis & Freidberg, 1991

Fig. 11

Distribution. Afrotropical: Kenya, Mascarenes ( Mauritius *).

Material examined (all collected by A.H. Kirk-Spriggs and B.S. Muller). Mauritius: 3♀ , Grand Port, Îlot Lafond , 20°28′17″S, 57°40′36″E, 1–3 m, 26.i.2018, sweeping intertidal zone and coastal vegetation (1♀ LMC); 2♂, 1♀ , Savanne, Bel Ombre , 20°30′00″S, 57°23′34″E, 1 m, 11.xii.2016, sweeping coastal rocks and sandy beach (1♂ LMC) .

Comments. The terminalia of a male specimen examined here perfectly match those of the type specimen, except for the caudal view of the posterior surstylus, which exhibits a rather linear mesial margin, not irregular and edgy, as figured by Mathis & Freidberg (1991, fig. 25). Additionally, the specimens from Mauritius exhibit all femora with distinctly olivaceous microtomentum, quite similar to that characterising the femora of P. canzonerii Mathis & Freidberg, 1991 (see identification key on p. 79). These two species are, therefore, distinguished only on the basis of male terminalia morphology and not on leg colour. Procanace canzonerii is only known from Cameroon in Central Africa.

Figures

FIGURES 7‒11. Mapped coastal sampling stations of surf flies in the Mascarene islands and distributions of species. 7. Map of sampling stations on La Réunion (2015). 8. Same, Mauritius (2018). 9. Distribution of Nocticanace mahensis (Lamb) on La Réunion. 10. Same, Isocanace mauritiana Munari sp. nov. on Mauritius. 11. Same, Nocticanace mahensis (Lamb), Procanace pninae Mathis & Freidberg and Procanace sp. grisescens-group on Mauritius.