1	Frons shiny and face flat; arista pubescent; mesonotum with 0–1+2–3 dorsocentral setae and 0–1+2–4 long acrostichal setulae; katepisternum with 1 strong katepisternal seta; male genitalia: phallic sheath present	subgenus Minettiella Malloch
–	Frons often dull and face slightly concave; arista pubescent or plumose; mesonotum with 0–1+3 dorsocentral setae and 0+2–3 long acrostichal setulae; katepisternum with 1 strong and 1 weak katepisternal setae; male genitalia: phallic sheath absent	2
2	Lower part of face with a distinct, slight and weakly round swelling on each side	3
–	Lower part of face without round swelling on each side	4
3	Basal part of wing black; arista long plumose, rays of arista with longest setulae longer than height of 1st flagellomere (rarely shorter than height of 1st flagellomere); male genitalia: two pairs of ventral hypandrial appendages (including some Palaearctic and Oriental species)	subgenus Frendelia Collin
–	Basal part of wing yellow; arista short plumose, rays of arista with longest setulae as long as 1/2 height of 1st flagellomere; male genitalia: one pair of ventral hypandrial appendages (such as Minettia eoa Shatalkin, 1992)	part of subgenus Scotominettia Shatalkin
4	Male genitalia: one pair of ventral hypandrial appendages (such as Minettia austriaca Hennig, 1951)	part of subgenus Scotominettia Shatalkin
–	Male genitalia: hypandrial appendages often transverse, bar–like, U–shaped or other shapes	5
5	Arista with gentle setulae, rays of arista with longest setulae as long as or shorter than1/4 height of 1st flagellomere, sometimes bare; male genitalia: phallic sheath absent (Fig. 24)	subgenus Plesiominettia Shatalkin... 6
–	Arista pubescent or plumose, rays of arista with longest setulae longer than 1/3 height of 1st flagellomere; male genitalia: phallic sheath present (Fig. 29), square, rectangular, triangular or trapezial in shape (for example: Minettia (Minettia) lupulina (Fabricius, 1787), Figs 26–30, 41–42, 48)	subgenus Minettia Robineau-Desvoidy
6	Mesonotum with presutural dorsocentral setae	7
–	Mesonotum without presutural dorsocentral setae	8
7	Frons with dark gray stripes through or rows; mesonotum and scutellum dark gray; wing with dark costal margin	Minettia (Plesiominettia) styriaca (Strobl)
–	Frons without stripes; mesonotum yellowish brown and scutellum yellow; wing faintly yellow	Minettia (Plesiominettia) ishidai (Sasakawa)
8	Mesonotum without strong acrostichal setae before prescutellar setae	9
–	Mesonotum with 1–2 pairs of strong acrostichal setae before prescutellar setae	13
9	Body entirely yellow	Minettia (Plesiominettia) filia (Becker)
–	Body partly black or entirely brown to black (entire thorax with grey pruinose in M. kimi which is a junior synonym of Minettia (Plesiominettia) gemmata Shatalkin, fig. 50)	10
10	Acrostichal setulae in 8 irregular rows; male genitalia: epandrium and surstylus fused; phallus broad and truncate apically (Figs 16, 19)	Minettia (Plesiominettia) tridentata sp. n.
–	Acrostichal setulae in 6 rows; male genitalia: epandrium and surstylus articulate, blunt apically lateral view; phallus narrow or rounded apically	11
11	Face yellow with a large black round median spot above ventral margin; arista with microscopic rays; abdominal tergites 2–5 each with brownish yellow posterior margin	Minettia (Plesiominettia) gemmata Shatalkin
–	Face brown to black without black medial spot; rays of arista with longest setulae slightly 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	12
12	Arista pubescent, rays of arista with longest setulae slightly shorter than 1/3 height of 1st flagellomere; abdomen blackish brown with sparse brownish pollinosity, subglossy; male genitalia: surstylus with narrow double processes in lateral view (Fig. 11)	Minettia (Plesiominettia) nigrantennata sp. n.
–	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; male genitalia: surstylus short and broad in lateral view (Shatalkin 2000: Fig. 95)	Minettia (Plesiominettia) gemina Shatalkin
13	Mesonotum with two pairs of strong acrostichal setae	14
–	Mesonotum with one pair of strong acrostichal setae	16
14	Body black except frons, face, mesonotum, scutellum and metanotum yellow; male genitalia: surstylus blunt and with hairy outgrowths (Remm and Elberg 1979: Fig. 13)	Minettia (Plesiominettia) loewi (Schiner)
–	Body entirely brown to black including mesonotum, scutellum and metanotum brown to black; male genitalia: surstylus short broad or in other shape	15
15	Arista with microscopic rays, rays of 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 (Shatalkin 2000: fig. 94, Remm and Elberg 1979: Fig. 12)	Minettia (Plesiominettia) helvola (Becker)
–	Arista short plumose, rays of arista with longest setulae at least longer than 1/3 height of 1st flagellomere; frons yellow on ventral 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 (Sasakawa 1985: Fig. 2A–C)	Minettia (Plesiominettia) divaricata Sasakawa
16	Body entirely yellow (Fig. 51)	17
–	Body mostly brown to black	18
17	Mesonotum with anteriormost dorsocentral setae slightly longer than length of acrostichal setulae rows, and distinctly shorter than other dorsocentral setae; scutellum without large black lateral spots on lateral margin	Minettia (Plesiominettia) helva Czerny
–	Mesonotum with anteriormost dorsocentral setae distinctly stronger than other dorsocentral setae; scutellum with a pair of large black lateral spots on lateral margin (Fig. 51)	Minettia (Plesiominettia) punctata Sasakawa
18	Mesonotum with acrostichal setulae in 4–6 rows	19
–	Mesonotum with acrostichal setulae in 8–10 rows	22
19	Mesonotum with acrostichal setulae in 6 rows; body length 6.5 mm; male genitalia: surstylus with a pair of slender spatulate processes; phallus with 4 sharp apical processes (Shatalkin 2000: Fig. 90)	Minettia (Plesiominettia) crassulata Shatalkin
–	Mesonotum with acrostichal setulae in 4 rows; body length 3.3–5.0 mm; male genitalia: surstylus without a pair of slender spatulate processes; phallus without sharp apical processes	20
20	Arista short plumose, rays of arista with longest setulae as long as 1/2 height of 1st flagellomere; male genitalia: epandrium and surstylus articulated; surstylus with a long falcate process (Fig. 1)	Minettia (Plesiominettia) flavoscutellata sp. n.
–	Rays of arista with longest setulae as long as or slightly longer than basal height of arista; male genitalia: epandrium and surstylus fused; surstylus in another shape	21
21	Halter dark brown except stem yellowish at base; male genitalia: surstylus slender and curved, claviform, acute apically (Shatalkin 2000: Fig. 97)	Minettia (Plesiominettia) fuscescens Shatalkin
–	Halter entirely yellow; male genitalia: surstylus short and rounded apically (Shatalkin 2000: Fig. 96)	Minettia (Plesiominettia) tenebrica Shatalkin
22	Body yellow to dark yellow; male genitalia: surstylus with a pair of very long aciculiform processes (Fig. 6)	Minettia (Plesiominettia) longaciculiformis sp. n.
–	Body brown to black; male genitalia with short claviform process or process shaped otherwise	23
23	Mid tibia with 2 strong apicoventral setae; halter dark brown except stem yellowish; male genitalia: surstylus claviform narrowing gradually, with a tiny median process and tiny setulae in lateral view (Shatalkin 2000: Fig. 91)	Minettia (Plesiominettia) omei Shatalkin
–	Mid tibia with 1 strong apicoventral seta; halter yellow; male genitalia: surstylus in another shape, if claviform, then without a median process in lateral view	24
24	Arista pubescent, rays of arista with longest setulae as long as 1/4 length of 1st flagellomere; acr in 10 irregular rows; mid tibia with 1 apicoventral seta; male genitalia: surstylus with a long clubbed process, curved ventrally at tip (Sasakawa 2002: Fig. 6)	Minettia (Plesiominettia) longistylis Sasakawa
–	Arista short plumose, rays of arista with longest setulae as long as 1/2 length of 1st flagellomere; acrostichal setulae in 8 rows; mid tibia with 2 apicoventral setae; male genitalia: surstylus with an acute geniculate outer process and a curved needle-like inner process (Fig. 21)	Minettia (Plesiominettia) zhejiangica sp. n.