Stomopogon Malloch, 1930

Fogaça, João M., Gomes, Lucas R. P., Couri, Márcia S., Rodríguez-Fernandez, Jaime I. & De Carvalho, Claudio J. B., 2021, Neotropical Stomopogon (Diptera, Muscidae): new species, redescriptions and key to species, Zootaxa 4903 (3), pp. 301-330 : 302-304

publication ID	https://doi.org/ 10.11646/zootaxa.4903.3.1
publication LSID	lsid:zoobank.org:pub:60A2C8D6-4AD4-41EE-9916-C110452FE749
DOI	https://doi.org/10.5281/zenodo.4432228
persistent identifier	https://treatment.plazi.org/id/03BC4A6D-8016-FFB3-FF4F-FAF363F8CAF4
treatment provided by	Plazi
scientific name	Stomopogon Malloch, 1930
status

Treatment

Stomopogon Malloch, 1930 View in CoL

( Figs 1–27 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10 View FIGURE 11 View FIGURE 12 View FIGURE 13 View FIGURE 14 View FIGURE 15 View FIGURE 16 View FIGURE 17 View FIGURE 18 View FIGURE 19 View FIGURE 20 View FIGURE 21 View FIGURE 22 View FIGURE 23 View FIGURE 24 View FIGURE 25 View FIGURE 26 View FIGURE 27 )

Type-species: Coenosia albiseta Stein (orig. desc.).

Diagnosis. Ground-color black, silver dust on head; thorax and abdomen grey. Frons broad in both sexes ( Figs 13B View FIGURE 13 , 14B View FIGURE 14 ). Epistoma not protruding ( Figs 1C, D View FIGURE 1 ). One pair of upper orbital setae directed backwards ( Fig. 1B View FIGURE 1 ). Inner and outer vertical setae longer than ocellar seta; ocellar seta shorter or similar to postocellar seta. Fronto-orbital plate narrow and bare, except for S. capribarba ( Fig. 14B View FIGURE 14 ) and S. inculta ( Fig. 20B View FIGURE 20 ). Postpedicel with pointed apex, not reaching epistoma ( Fig. 1D View FIGURE 1 ). Arista short pubescent ( Fig. 1C View FIGURE 1 ), long pubescent ( Fig. 16B View FIGURE 16 ) or bare. Palpus slender. Prosternum bare. Dorsocentral setae 1+3; intra-alar setae 1+2, except for S. inculta 1+1; supra-alar setae 1+1; 1 postalar seta; 2 basal postpronotal setae; 2 notopleural setae; prealar seta absent. Lateral margin of scutellum bare; basal scutellar seta subequal in length to the apical scutellar seta, except for S. garleppi . Lower proepisternal seta directed downward; 2 proepisternal setae; anepisternum with 4–6 setae; katepisternal setae 1+1+1 forming an equilateral triangle. Halter yellowish, except for S. nigrisquama sp. nov. Vein R 4+5 parallel apically ( Fig.1G View FIGURE 1 ); vein r-m almost straight. Calypteres developed, upper calypter glossiform and lower elongated, about twice as long as the upper one ( Fig. 1E View FIGURE 1 ). Sternite 1 bare. Tergites 3 to 5 with developed lateral marginal seta; tergite 5 with developed discal seta. Male: cercus rectangular ( Figs 3B, E, H View FIGURE 3 and 4B, E, H View FIGURE 4 ); surstylus long, longer than cercus in ventral view

( Figs 3B, E, H View FIGURE 3 and 4B, E, H View FIGURE 4 ); hypandrium tubular ( Figs 2A, 2 View FIGURE 2 C–F, 3C, F, I and 4C, F, I); distiphallus curved and membranous on apical half ( Figs 2 View FIGURE 2 E–F, 3C, F, I and 4C, F, I); epiphallus usually longer than postgonite ( Figs 3F, I View FIGURE 3 and 4F, I View FIGURE 4 ), except for S. albiseta and S. capribarba (3C and 4C, respectively) that are equal or subequal; postgonite comma-like ( Figs 3C, F, I View FIGURE 3 and 4C, F, I View FIGURE 4 ). Female: ovipositor long, with microtrichia ( Figs 5 View FIGURE 5 A–E), tergites 6 and 7 slender; cerci long and slender; epiproct three times longer than wide; three spermathecae pear-shaped.

Key to species of Stomopogon Malloch View in CoL

1 Antenna with arista long pubescent ( Fig. 16B View FIGURE 16 ). Apical scutellar seta smaller than basal scutellar setae ( Fig. 16C View FIGURE 16 ). Abdomen with the two first visible segments translucent yellow ( Fig. 16A, C View FIGURE 16 ).............................. S. garleppi ( Stein, 1911) View in CoL

- Antenna with arista short pubescent or bare. Apical and basal scutellar setae subequal in length. Two first visible abdomen segments not translucent.................................................................................. 2

2(1) Scutum with two large brown vittae ( Figs 14C View FIGURE 14 , 15C View FIGURE 15 )......................................................... 3

- Scutum without vittae, if present, three thin vittae ( Figs 25C View FIGURE 25 , 26C View FIGURE 26 ).............................................. 4

3(2) Male mid and hind femora black except for the knees and trochanters ( Fig. 18A View FIGURE 18 ). Male hind tibia a little setulose ( Fig. 18A View FIGURE 18 ). Female fore tibia yellow............................................................ S. hirtitibia ( Stein, 1911) View in CoL

- Male mid and hind femora yellow ( Fig. 14A View FIGURE 14 ). Male hind tibia with many long setae ( Fig. 14A View FIGURE 14 ). Female fore tibia grey................................................................................... S. capribarba ( Stein, 1911) View in CoL

4 (2) Fronto-orbital plate with many setulae ( Fig. 20B View FIGURE 20 ). Parafacial wider or subequal than pedicel ( Fig. 20A View FIGURE 20 )................................................................................................... S. inculta ( Stein, 1911) View in CoL

- Fronto-orbital plate bare ( Fig. 12B View FIGURE 12 ). Parafacial narrower than pedicel ( Fig. 12A View FIGURE 12 )................................... 5

5(4) Legs all brown ( Fig. 25E View FIGURE 25 ).............................................................................. 6

- Legs with yellow parts ( Fig. 12A View FIGURE 12 )........................................................................ 7

6(5) Halter knob yellow. Calypteres whitish ( Fig. 25A View FIGURE 25 )......................................... S. paranaensis View in CoL sp. nov.

- Halter knob dark brown. Calypteres brownish ( Fig 23A View FIGURE 23 ).................................... S. nigrisquama View in CoL sp. nov.

7(5) Postpedicel yellow ( Fig. 9B View FIGURE 9 ). Body with many white setae ( Fig. 9A View FIGURE 9 )........................... S. albiseta Stein, 1911 View in CoL

- Postpedicel brown ( Fig. 12B View FIGURE 12 ). Body setae black ( Fig. 12A View FIGURE 12 ).................................................... 8

8(7) Gena not developed, shorter than pedicel length ( Fig. 10A View FIGURE 10 ). Frontal triangle almost reaching the lunule. Female scutum with 3 strong brown vittae running along dorsocentral and acrostichal lines ( Fig. 10C View FIGURE 10 ).............. S. argentina ( Snyder, 1957)

- Gena well developed, larger than pedicel ( Fig. 12A View FIGURE 12 ). Frontal triangle short. Female scutum with 3 faint brown vittae running along dorsocentral and acrostichal lines ( Fig. 12C View FIGURE 12 )......................................... S. boliviensis View in CoL sp. nov.