Pygophora confusa Stein, 1915

Yoshizawa, Satoshi & Tachi, Takuji, 2018, Taxonomic review of the genus Pygophora Schiner of Japan (Diptera: Muscidae), Zootaxa 4418 (5), pp. 449-468 : 454

Pygophora confusa Stein, 1915

( Figs. 3a–d , 12 )

Pygophora confusa Stein, 1915: 54 . Lectotype male (Senckenberg German Entomological Institute, Müncheberg, Germany), by designation of Crosskey (1962: 54). Type locality: Tainan, Taiwan.

Redescription. Male. Differing from P. boninensis as follows: frontal vitta creamy yellow; first flagellomere 2.3–2.7 times as long as pedicel; wing brownish hyaline without brown spot; mid tibia with 1 anterodorsal seta; abdominal tergite 5 with three black spots; abdominal sternite 5 without short projection at inside; cerci not bifurcated apically; postgonite slender at middle; phallus nearly straight apically. Female. Differing from male as follows: first flagellomere brownish yellow apically; hind tibia without posteroventral seta and apical lobe; abdominal tergite 3 with three black spots; abdominal tergite 5 without dorsal keel. Female terminalia. Very similar to P. boninensis .

Body length. 5.0–6.0 mm.

Material examined. JAPAN: 1 male (EUM), Mishimachi , Noichi city, Kôchi pref., 6. VII. 2002 ; 1 male (BLKU), Mitoma , Fukuoka city, Fukuoka pref., 26. X. 1995 ; 1 male and 5 females (BLKU), Motooka , Fukuoka city, Fukuoka pref., 4. VI. 2011 ; 1 female (BLKU), same locality to the preceding data, 23. IX. 2011 ; 1 female (BLKU), Mt. Koushidake , Fukuoka city, Fukuoka pref., 31. V. 2011 ; 5 males (NIAES), Kasari , Amami city, Amami-Ôshima Is., Kagoshima pref., 27. XI. 1963 ; 1 male (BLKU), Kayo , Nago city, Okinawa pref. [N 26°33’10” / E 128°6’26”], 27. VI. 2013 ; 8 males and 2 females (BLKU), Siramizu , Ishigaki city, Ishigakijima Is., Okinawa pref. [N 24°25’19” / E 124°9’50”], 22–30. V. 2012 ; 3 males (BLKU), same locality to the preceding data, 11. VI. 2014 ; 1 male (NIAES), Sonai, Taketomi town , Iriomotejima Is., Yaeyama-gun, Okinawa pref., 6. I. 1953 .

Distribution. Japan (Honshu, Shikoku, Kyushu, Ryukyu), China, Taiwan, India, Myanmar, Sri Lanka, Pakistan.

Bionomics. This species was found and collected by the first author in a grassland and rice paddy field.

Remarks. This species resembles Pygophora immaculipennis Frey , but it is distinguished from the latter by having a lobe of the hind tibia in male and brownish yellow first flagellomere in female.

Figures

FIGURE 3. Pygophora confusa 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).

FIGURE 12. Distribution map for Pygophora spp. in Japan:P.boninensis Snyder (black star); P.confusa Stein (white star); P. immaculipennis Frey (black circle); P. lepidofera (Stein) (white circle); P. longicornis (Stein) (black triangle); P. macularis (Wiedemann) (white triangle); P. maculipennis Stein (black square); P. respondens (Walker) (white square); P.unicolor (Stein) (black hexagon).