Macrostomus pictipennis (Bezzi)

(Figs 5A–F)

Rhamphomyia pictipennis Bezzi, 1909: 330 . Type locality: Bolivia, La Paz, Mapiri, San Carlos .

Macrostomus pictipennis; Rafael & Cumming, 2004: 446; Yang et al., 2007: 145 (cat.); Rafael & Cumming, 2010: 619 (redescr.); Rafael & Marques, 2019: 273, 274 (cit.).

Diagnosis. This species is characterized by male and female with four pairs of dorsocentral setae; wing with brown to black infuscation at level of crossveins r-m and dm-m (Fig. 5A). Male. Tergite 8 (Fig. 5C) elongated with distal protuberances; epandrium (Fig. 5C) slightly swollen with strong posterodorsal lobe longer than anterodorsal lobe; hypandrium (Fig. 5D) with slender posterior setae; ejaculatory apodeme trilamellar, dorsal lamella absent; phallus same length as hypandrium.

Female. Pinnate setae dorsally and ventrally on mid femur and a few short pinnate setae on basal fourth of mid tibia ventrally (Fig. 5E); hind femur and tibia with pinnate setae dorsally and ventrally (Fig. 5F).

Geographical records. Bolivia, Peru.

Material examined. PERU: Cuzco, Quincemil, 13–31.viii.1962, L. Pena, 700 m (1♀ INPA) .

Remarks. This species was originally described on the basis of a single female specimen from La Paz, Bolivia and presently it is in poor condition. It was associated with specimens from Quincemil, Cuzco, Peru by Rafael & Cumming (2010). No male from the type-locality was studied and this is essential to be secure that the Peruvian specimens are conspecific with Bolivian specimens of M. pictipennis .