Pygophora, Schiner, 1868

Yoshizawa, Satoshi & Tachi, Takuji, 2018, Taxonomic review of the genus Pygophora Schiner of Japan (Diptera: Muscidae), Zootaxa 4418 (5), pp. 449-468 : 450-451

Key to Japanese species of the genus Pygophora (excluding P. trimaculata Karl )

1. Frontal vitta black; male cerci nearly trapezoidal in dorsal view ( Fig. 10d )......................... .. P. unicolor (Stein)

- Frontal vitta yellowish white or creamy yellow; male cerci not trapezoidal in dorsal view............................. 2

2. Mid tibia with 1 anterodorsal seta.........................................................................3

- Mid tibia without anterodorsal seta........................................................................4

3. Male hind tibia with apical lobe, in female first flagellomere brownish yellow apically................... P. confusa Stein

- Male hind tibia without apical lobe, in female first flagellomere creamy yellow apically............ P. immaculipennis Frey

4. Hind tibia with 5–7 anterodorsal and 4–6 posterodorsal setae................................... P. longicornis (Stein)

- Hind tibia with 2–3 anterodorsal and 2–3 posterodorsal setae................................................... 5

5. Male wing with a brown spot on the tip of R2+3 ( Fig. 1c ); female femora entirely creamy............................. 6

- Male wing without brown spot on the tip of R2+3; female femora black on basal 3/4–4/5.............................. 8

6. Male hind tibia with 3–4 posteroventral setae............................................... P. maculipennis Stein

- Male hind tibia with 1 posteroventral seta..................................................................7

7. Male terminalia with surstylus slender at middle in dorsal view; postgonite broad at middle in lateral view ( Figs. 2b, d ).......................................................................................... P. boninensis Snyder

- Male terminalia with surstylus broad at middle in dorsal view; postgonite slender at middle in lateral view ( Figs. 7b, d )..................................................................................... P. macularis (Wiedemann)

8. Male abdominal tergite 5 with leaf-like setae ( Fig. 1f ); body size not reaching 5.0 mm............... P. lepidofera (Stein)

- Male abdominal tergite 5 without leaf-like seta; body size 5.0 mm or more...................... P. respondens (Walker)

Figures

FIGURE 1. Male and female adults of Pygophora species. P. boninensis Snyder: a, b. Habitus in lateral view (a. Male, b. Female). c, d. Wings in ventral view (c. Male, d. Female). e. Apical part of male hind tibia in anterior view. P. lepidofera (Stein): f. Male abdomen in dorsal view (arrow indicates leaf-like seta) (Scale bars = 2.0 mm in a–b; 1.0 mm in c–d, f; 0.2 mm in e).

FIGURE 2. Pygophora boninensis Snyder, male sternite 5 and terminalia: a. Male sternite 5 in ventral view (setae omitted on the left side). b. Hypandrium, pregonite, postgonite, and phallus in lateral view. c. Epandrium, surstylus, and cerci in lateral view. d. Same in dorsal view (setae omitted on the left side) (Scale bars = 0.2 mm) (Abbreviations. bcs: bacilliform sclerite; cerc:cerci; epand: epandrium; hypand:hypandrium; pgt:postgonite; ph: phallus; prgt:pregonite; sur:surstylus).

FIGURE 7. Pygophora macularis (Wiedemann), male sternite 5 and terminalia: a. Male sternite 5 in ventral view (setae omitted on the leftside).b.Hypandrium, pregonite,postgonite, and phallus inlateral view.c. Epandrium, surstylus, and cerci in lateral view. d. Same indorsal view (setae omitted on the left side) (Scale bars = 0.2 mm).

FIGURE 10. Pygophora unicolor (Stein), male sternite 5 and terminalia: a. Male sternite 5 in ventral view (setae omitted on the left side). b. Hypandrium, pregonite, postgonite, and phallus in lateral view. c. Epandrium, surstylus, and cerci in lateral view.d. Same in dorsal view (setae omitted on the left side) (Scale bars = 0.2 mm).