Macrostomus penai Rafael & Cumming, 2006

Rafael, José Albertino & Marques, Dayse Willkenia A., 2021, Four new species of Macrostomus Wiedemann and a checklist of Empididae s. str (Diptera) from Peru, Zootaxa 4981 (3), pp. 506-530 : 514-516

Macrostomus penai Rafael & Cumming

( Figs 7A–G )

Macrostomus penai Rafael & Cumming, 2006: 58 . Type locality: Peru, Cuzco, Quincemil .

M. penai: Yang et al., 2007: 145 (cat.).

Diagnosis. This species is characterized by male and female frons and face wide; postgena setae stout; cell dm rather truncate; veins M 1, M 2 and CuA+CuP somewhat evanescent distally. Male. Tergite 8 ( Figs 7A, B ) somewhat short, sinuous distally; all cercal lobes elongate dorsally ( Fig. 7C ); hypandrium ( Fig. 7D ) somewhat thin, without posterior setae; ejaculatory apodeme without dorsal lamella ( Fig. 7D ); phallus same length of hypandrium.

Female. Tergite 8 and sternite 8 ( Figs 7E, F ) very elongate; sternite 8 with a lateral lobe near base and a small internal protuberance with apex thin and elongate at distal third; genital fork ( Fig. 7G ) small, with small cleft distally, with genital chamber membranous.

Geographical records. Ecuador, Peru.

Material examined. As listed in Rafael & Cumming (2006).

Remarks. This species was originally described based on the male holotype from Peru, Cuzco, Quincemil, plus lots of female specimens from the same locality and from Ecuador.

Figures

FIGURE 7. Macrostomus penai Rafael & Cumming, 2006. Holotype ♂ (A–D). A. Tergite 8, dorsal view; B. Tergite and sternite 8, lateral view; C. Epandrium and cerci lobes, lateral view; D. Hypandrium and phallus, lateral view. Paratype ♀ (E–G). E. Female, apex of abdomen, lateral view; F. Female sternite 8, ventral view; G. Genital fork (all figures after Rafael & Cumming (2009)).