Macrostomus limbipennis

Rafael, José Albertino & Marques, Dayse Willkenia Almeida, 2019, Five new species of Macrostomus Wiedemann and a checklist of Empididae (s. str.) (Diptera) from Bolivia, Zootaxa 4567 (2), pp. 251-275 : 256

Macrostomus limbipennis species-group

Macrostomus macerrimus ( Bezzi, 1909) is tentatively being treated in the M. limbipennis species-group as described by Rafael & Cumming (2012) with the following characters: 1–2 pairs of ocellar setae, posterior pair weaker; 1 postsutural supra-alar seta; tergite 8 with deep posterior sinus; epandrium with anterodorsal and posterodorsal lobes approximately of same length; hypandrium with apex wider than base and ejaculatory apodeme tetralamellar. Additionally, two new species are also being included in this species-group, M. montanus sp. nov. and M. rodriguezi sp. nov., however, these two species differ by possessing tergite 8 somewhat short with shallow distal sinus; epandrium with posterodorsal lobe longer than anterodorsal lobe; hypandrium almost same width from base to apex.