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

http://doi.org/10.5281/zenodo.4432228

persistent identifier

http://treatment.plazi.org/id/03BC4A6D-8016-FFB3-FF4F-FAF363F8CAF4

treatment provided by

Plazi

scientific name

Stomopogon Malloch, 1930
status

 

Stomopogon Malloch, 1930 

( Figs 1–27View FIGURE 1View FIGURE 2View FIGURE 3View FIGURE 4View FIGURE 5View FIGURE 6View FIGURE 7View FIGURE 8View FIGURE 9View FIGURE 10View FIGURE 11View FIGURE 12View FIGURE 13View FIGURE 14View FIGURE 15View FIGURE 16View FIGURE 17View FIGURE 18View FIGURE 19View FIGURE 20View FIGURE 21View FIGURE 22View FIGURE 23View FIGURE 24View FIGURE 25View FIGURE 26View 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 13BView FIGURE 13, 14BView FIGURE 14). Epistoma not protruding ( Figs 1C, DView FIGURE 1). One pair of upper orbital setae directed backwards ( Fig. 1BView 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. 14BView FIGURE 14) and S. inculta  ( Fig. 20BView FIGURE 20). Postpedicel with pointed apex, not reaching epistoma ( Fig. 1DView FIGURE 1). Arista short pubescent ( Fig. 1CView FIGURE 1), long pubescent ( Fig. 16BView 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.1GView FIGURE 1); vein r-m almost straight. Calypteres developed, upper calypter glossiform and lower elongated, about twice as long as the upper one ( Fig. 1EView 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, HView FIGURE 3 and 4B, E, HView FIGURE 4); surstylus long, longer than cercus in ventral view

( Figs 3B, E, HView FIGURE 3 and 4B, E, HView FIGURE 4); hypandrium tubular ( Figs 2A, 2View FIGURE 2 C–F, 3C, F, I and 4C, F, I); distiphallus curved and membranous on apical half ( Figs 2View FIGURE 2 E–F, 3C, F, I and 4C, F, I); epiphallus usually longer than postgonite ( Figs 3F, IView FIGURE 3 and 4F, IView FIGURE 4), except for S. albiseta  and S. capribarba  (3C and 4C, respectively) that are equal or subequal; postgonite comma-like ( Figs 3C, F, IView FIGURE 3 and 4C, F, IView FIGURE 4). Female: ovipositor long, with microtrichia ( Figs 5View 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 

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

- 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 14CView FIGURE 14, 15CView FIGURE 15)......................................................... 3

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

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

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

4 (2) Fronto-orbital plate with many setulae ( Fig. 20BView FIGURE 20). Parafacial wider or subequal than pedicel ( Fig. 20AView FIGURE 20)................................................................................................... S. inculta ( Stein, 1911) 

- Fronto-orbital plate bare ( Fig. 12BView FIGURE 12). Parafacial narrower than pedicel ( Fig. 12AView FIGURE 12)................................... 5

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

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

6(5) Halter knob yellow. Calypteres whitish ( Fig. 25AView FIGURE 25)......................................... S. paranaensis  sp. nov.

- Halter knob dark brown. Calypteres brownish ( Fig 23AView FIGURE 23).................................... S. nigrisquama  sp. nov.

7(5) Postpedicel yellow ( Fig. 9BView FIGURE 9). Body with many white setae ( Fig. 9AView FIGURE 9)........................... S. albiseta Stein, 1911 

- Postpedicel brown ( Fig. 12BView FIGURE 12). Body setae black ( Fig. 12AView FIGURE 12).................................................... 8

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

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

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Muscidae