Minettia (Plesiominettia), Shatalkin, 2000

Li, Wenliang, Bai, Yingming & Yang, Ding, 2023, The genus Minettia Robineau-Desvoidy, 1830 (Diptera: Lauxaniidae: Lauxaniinae) from the Oriental Region with descriptions of seventeen new species, Zootaxa 5256 (3), pp. 201-249 : 203-205

publication ID	https://doi.org/ 10.11646/zootaxa.5256.3.1
publication LSID	lsid:zoobank.org:pub:C4629899-BDC2-4A22-99AB-2D4A93FCBB13
DOI	https://doi.org/10.5281/zenodo.7760532
persistent identifier	https://treatment.plazi.org/id/03C987E9-FFC5-FF85-FF15-FC2FA3DC005A
treatment provided by	Plazi
scientific name	Minettia (Plesiominettia)
status

Treatment

Key to separate species of the subgenus Plesiominettia View in CoL

(modified from Shi et al., 2015)

1. Mesonotum with presutural dorsocentral setae.............................................................. 2

- Mesonotum without presutural dorsocentral setae............................................................ 4

2. Head with orbits yellow ( Figs. 81 View FIGURES 81–85 , 101 View FIGURES 101–104 )................................................................... 3

- Head with orbits not as above....................................................... M. (P.) ishidai (Sasakawa)

3. Face with one yellow median longitudinal stripe; first flagellomere yellow; acrostichal setulae in six rows; mesonotum with five white longitudinal stripes ( Fig. 84 View FIGURES 81–85 )................................................. M. (P.) orbitalis View in CoL sp. nov.

- Face without yellow longitudinal stripe; first flagellomere only yellow at base ( Fig. 101 View FIGURES 101–104 ); acrostichal setulae in eight rows; mesonotum with three white longitudinal stripes ( Fig. 104 View FIGURES 101–104 )............................. M. (P.) spiniphallata View in CoL sp. nov.

4. Mesonotum without strong acrostichal seta before prescutellar setae............................................. 5

- Mesonotum with 1–2 pairs of strong acrostichal setae before prescutellar setae.................................... 11

5. Body entirely yellow.................................................................. M. (P.) filia (Becker)

- Body partly black or entirely brown to black................................................................ 6

6. Acrostichal setulae in eight irregular rows; male genitalia: epandrium and surstylus fused; phallus broad and truncate apically ................................................................................................... 7

- Acrostichal setulae in six rows; male genitalia: epandrium and surstylus articulate; phallus narrow or rounded apically..... 8

7. Frons with two black longitudinal stripes along fronto-orbital rows and one triangular black longitudinal stripe extending from ocellar triangle to anterior margin of frons; abdominal tergites bicolored ( Fig. 5 View FIGURES 1–5 ); syntergosternite circular ( Fig. 8 View FIGURES 6–10 ); phallapodeme slightly shorter than phallus ( Fig. 9 View FIGURES 6–10 ).................................................. M. (P.) bicolorata View in CoL sp. nov

- Frons without longitudinal stripe; parafacial with one blackish brown spot between eye and antennal bases; abdominal tergites blackish brown; syntergosternite semicircular; phallapodeme shorter than 1/4 length of phallus.............................................................................................. M. (P.) tridentata Shi, Gaimari et Yang

8. Face yellow with a large black round median spot above ventral margin; arista bare; abdominal tergites 2–5 each with brownish yellow posterior margin............................................................ M. (P.) gemmata Shatalkin

- Face brown to black without black medial spot; rays of arista with longest setulae shorter than 1/3 height of 1st flagellomere or longer than half height of 1st flagellomere; abdominal tergites 2–5 without brownish yellow posterior margin............ 9

9. Arista pubescent, rays of arista with longest setulae shorter than 1/3 height of 1st flagellomere; abdomen black or blackish brown with pruinescence.............................................................................. 10

- Arista plumose, rays of arista with longest setulae as long as 3/5–4/5 height of 1st flagellomere; abdominal tergites brownish yellow along medial line and dark brown to black on lateral margins.......................... M. (P.) gemina Shatalkin

10. Frons with a pair of black longitudinal stripes along fronto-orbital rows, extending from ocellar triangle to occiput; parafacial without black spot ( Fig. 110 View FIGURES 110–114 ); hind femur without anterior ventral seta; male genitalia ( Figs. 115–119 View FIGURES 115–119 ): syntergosternite circular, surstylus scabbard-shaped, with one forward spiny process near base........................ M. (P.) surstylata View in CoL sp. nov.

- Frons without black longitudinal stripes; parafacial with one black spot between eye and base of antenna; hind femur with a row of anterior ventral setae; male genitalia: syntergosternite semicircular, surstylus with narrow double processes in lateral view.................................................................. M. (P.) nigrantennata Shi, Gaimari et Yang

11. Mesonotum with two pairs of strong acrostichal setae....................................................... 12

- Mesonotum with one pair of strong acrostichal setae........................................................ 14

12. Body black except frons, face, mesonotum, scutellum and metanotum yellow; male genitalia: surstylus less prominent (Remm and Elberg 1979: Fig. 13 View FIGURES 11–15 ).............................................................. M. (P.) loewi (Schiner)

- Body entirely brown to black; male genitalia: surstylus short broad or otherwise shaped............................ 13

13. Arista with longest setulae as long as 1/7 height of 1st flagellomere; frons and legs entirely brown; male genitalia: surstylus widened apically and narrow subapically, with a small concavity at middle of apical edge.......... M. (P.) helvola (Becker) View in CoL

- Arista short plumose, rays of arista with longest setulae at least longer than 1/3 height of 1st flagellomere; frons yellow on anterior 1/5; legs dark brown except base of tibiae and tarsi yellowish; male genitalia: surstylus consisting of outer process narrow basally and bifurcated apically, and inner process clubbed and slender in lateral view... M. (P.) divaricata Sasakawa

14. Body entirely yellow................................................................................. 15

- Body mostly brown to black........................................................................... 16

15. Mesonotum without long acrostichal setulae; scutellum without large black lateral spots on lateral margin................................................................................................... M. (P.) helva Czerny

- Mesonotum with a pair of distinct acrostichal setulae as long as first postsutural dorsocentral setae; scutellum with a pair of large black lateral spots on lateral margin.............................................. M. (P.) punctata Sasakawa

16. Mesonotum with acrostichal setulae in four to six rows...................................................... 17

- Mesonotum with acrostichal setulae in eight to ten rows...................................................... 27

17. Mesonotum with acrostichal setulae in six rows............................................................ 18

- Mesonotum with acrostichal setulae in four rows........................................................... 24

18. Frons with a pair of black longitudinal stripes along fronto-orbital rows......................................... 19

- Frons without black longitudinal stripes along fronto-orbital rows.............................................. 20

19. Head brownish yellow ( Fig. 11 View FIGURES 11–15 ); fore femur with seven posterior ventral setae; surstylus fused with epandrium; connected by one U-shaped sclerite behind cercus in posterior view ( Fig. 17 View FIGURES 16–20 )................................. M. (P.) caii View in CoL sp. nov

- Head blackish brown ( Fig. 91 View FIGURES 91–95 ); fore femur with five posterior ventral setae ( Fig. 93 View FIGURES 91–95 ); surstylus separated from epandrium, without connected sclerite ( Fig. 97 View FIGURES 96–100 )................................................... M. (P.) prominens View in CoL sp. nov.

20. Frons with two brownish yellow longitudinal stripes along fronto-orbital rows extending to ocellar triangle ( Fig. 71 View FIGURES 71–75 ).................................................................................... M. (P.) nujiangensis sp. nov.

- Frons without brownish yellow longitudinal stripe.......................................................... 21

21. Anterior margin of mesonotum brownish yellow, with two brownish yellow longitudinal stripes along dorsocentral rows almost reaching the third post-sutural dorsocentral setae ( Fig. 44 View FIGURES 41–45 ).................................. M. (P.) huangi View in CoL sp. nov.

- Anterior margin of mesonotum blackish brown, without brownish yellow longitudinal stripe along dorsocentral rows..... 22

22. Ocellar setae almost 2 times longer than anterior fronto-orbital setae; rays of arista with longest setulae as long as 1/2 height of 1st flagellomere; stem vein brown; surstylus near cylindrical, curved apically ( Fig. 67 View FIGURES 66–70 ); phallus with one median elongate oval sclerotized structure ( Fig. 69 View FIGURES 66–70 )...................................................... M. (P.) mediclavata View in CoL sp. nov

- Ocellar setae as long as or slightly longer than anterior fronto-orbital setae; rays of arista with longest setulae as long as 1/4 height of 1st flagellomere; stem vein not as above; surstylus slender; phallus not as above........................... 23

23. Haltere pale yellow ( Fig. 53 View FIGURES 51–55 ); male genitalia ( Figs. 56–60 View FIGURES 56–60 ): syntergosternite with a pair of small ventral processes; surstylus bifurcated in lateral view; phallus without sharp apical processes........................... M. (P.) ludingensis View in CoL sp. nov.

- Haltere with knob brown; male genitalia: syntergosternite with one broad ventral processes; surstylus not bifurcated; phallus with four sharp apical processes..................................................... M. (P.) crassulata Shatalkin View in CoL

24. Rays of arista with longest setulae as long as 1/4 or 1/2 height of 1st flagellomere; male genitalia: surstylus articulated with epandrium.......................................................................................... 25

- Rays of arista with longest setulae as long as or slightly longer than basal height of arista; male genitalia: epandrium and surstylus fused...................................................................................... 26

25. Arista with longest setulae as long as 1/4 height of first flagellomere ( Fig. 21 View FIGURES 21–25 ); surstylus long clavate ( Fig. 27 View FIGURES 26–30 ); postgonite cylindrical and shorter than phallus ( Fig. 29 View FIGURES 26–30 )............................................... M. (P.) cuiae sp. nov.

- Arista with longest setulae as long as 1/2 height of first flagellomere; surstylus long falcate; postgonite poorly developed..................................................................... M. (P.) flavoscutellata Shi, Gaimari et Yang

26. Halter dark brown except stem yellowish at base; male genitalia: surstylus slender and curved, claviform, acute apically................................................................................. M. (P.) fuscescens Shatalkin

- Halter entirely yellow; male genitalia: surstylus short and rounded apically.................. M. (P.) tenebrica Shatalkin

27. Body yellow to dark yellow; male genitalia: surstylus with a pair of very long aciculiform processes................................................................................... M. (P.) longaciculiformis Shi, Gaimari et Yang

- Body brown to black; male genitalia with short claviform process or process shaped otherwise....................... 28

28. Mid tibia with one strong apicoventral setae............................................................... 29

- Mid tibia with two strong apicoventral setae............................................................... 30

29. Wing brown at base ( Fig. 32 View FIGURES 31–35 ); male genitalia ( Figs. 36–40 View FIGURES 36–40 ): syntergosternite semicircular; surstylus absent; pregonite longer than phallus; phallus with one trident sclerotized structure inside...................... M. (P.) dulongjiangensis View in CoL sp. nov.

- Wing yellow at base; male genitalia: syntergosternite circular; surstylus claviform narrowing gradually, with a tiny median process and tiny setulae in lateral view; postgonite shorter than phallus; phallus without trident sclerotized structures inside.................................................................................... M. (P.) omei Shatalkin View in CoL

30. Acrostichal setulae in ten irregular rows; male genitalia: surstylus with a long clubbed process, curved ventrally at tip................................................................................... M. (P.) longistylis Sasakawa View in CoL

- Acrostichal setulae in eight rows; male genitalia: surstylus with an acute geniculate outer process and a curved aciculiform inner process......................................................... M. (P.) zhejiangica Shi, Gaimari et Yang View in CoL