Pygophora immaculipennis Frey, 1917

Yoshizawa, Satoshi & Tachi, Takuji, 2018, Taxonomic review of the genus Pygophora Schiner of Japan (Diptera: Muscidae), Zootaxa 4418 (5), pp. 449-468 : 454-457

Pygophora immaculipennis Frey, 1917

( Figs. 4a–d , 12 )

Pygophora immaculipennis Frey, 1917: 15 . Lectotype male (Finnish Museum of Natural History, Helsinki, Finland), by designation of Crosskey (1962: 434). Type locality: Anuradhapura, Sri Lanka.

Redescription. Male. Differing from P. boninensis as follows: first flagellomere approximately 2.8 times as long as pedicel; wing brownish hyaline without brown spot; mid tibia with 1 anterodorsal seta; hind tibia without apical lobe; abdominal tergite 3 with a black spot at middle; 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 2.1–2.3 times as long as pedicel; hind tibia without posteroventral seta; abdominal tergite 5 without dorsal keel. Female terminalia. Very similar to P. boninensis .

Body length. 4.6–6.2 mm.

Material examined. JAPAN: 1 female ( BLKU), Henaji, Motobu town , Kunigami-gun, Okinawa pref. [N 26°39’20” / E 127°53’39”], 24. VI. 2013 ; 2 males and 4 females ( BLKU), Kayo, Nago city, Okinawa pref. [N 26°33’10” / E 128°6’26”], 22–23, 27. VI. 2013 ; 1 male and 5 females ( BLKU), Genka, Nago city, Okinawa pref. [N 26°37’45” / E 128°3’41”], 26. VI. 2013 ; 10 females ( BLKU), Shiramizu, Ishigaki-jima Is., Okinawa pref. [N 24°25’19” / E 124°9’50”], 22–23, 30. V. 2012 ; 2 males ( BLKU), Ôtomi, Iriomote-jima Is., Okinawa pref. [N 24°17’37” / E 123°52’58”], 25. V. 2012 ; 1 female ( BLKU), Urauchi, Iriomote-jima Is., Okinawa pref. [N 24°24’10” / E 123°46’42”], 27. V. 2012 .

Distribution. Japan (Ryukyu), China, Taiwan, India, Laos, Myanmar, Sri Lanka, Pakistan, Iran.

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

Remarks. This species is similar to Pygophora confusa , but it is distinguished from the latter by having a hind tibia without apical lobe in male and creamy yellow first flagellomere in female.

Figures

FIGURE 4. Pygophora immaculipennis Frey, 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 inlateral 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).