Panzeria inusta (Mesnil)

Shima, Hiroshi, 2020, The genus Panzeria Robineau-Desvoidy (Diptera: Tachinidae) from Japan, Zootaxa 4816 (4), pp. 541-575 : 555-556

Panzeria inusta (Mesnil)

( Figs 11–14 )

Fausta inusta Mesnil, 1957: 57 . Holotype male (CNC, examined). Type locality: Obihiro, Japan. References: Zimin (1960: 739, Palearctic Ernestiina ); Herting (1984: 103, Palearctic catalog); Ziegler & Shima (1996: 420, Ussuri tachinids); Richter (2004: 298, Far East Russian tachinids); O’Hara et al. (2009: 141, Chinese catalog).

Panzeria inusta: Shima (2014: 870 , Japanese catalog); Shima & Hara (2016: 28, Saitama tachinids): Zhang et al. (2016: 578, Liaoning tachinids).

Diagnosis. Medium-sized species, abdomen long ovate; one presutural acrostichal seta; abdominal syntergite 1+2 with a pair of fine but distinct median marginal setae; male cerci nearly straight in lateral view, lateral basal ridge rather weak.

Redescription. Male. Body length. 8.7–12 mm.

Head with grayish-white, somewhat silvery, pruinosity on fronto-orbital plate and parafacial, face with pale yellowish white and occiput and genal dilation with grayish pruinosity; antenna black, apical portion of pedicel narrowly reddish; palpus reddish yellow, darkened basally. Frons at narrowest point 0.12–0.13 of head width; face 0.60–0.70 times as long as frons in profile; parafacial bare, wide, about 1.5 times as wide as postpedicel in horizontal position; gena about 1/2 of eye height. Inner vertical seta about 3/4 as long as eye height; outer vertical seta absent; ocellar setae fine, about 2/3 as long as inner vertical seta; 10–12 frontal setae, a row of strong setae outside row of frontal setae near base of antenna; occiput with 1–2 rows of black setulae. Antenna falling short of lower margin of face by about 1/2 length of postpedicel, pedicel about 3/4 as long as postpedicel; arista thickened on basal 1/2–2/5, 2nd aristomere as long as wide. Proboscis short; prementum about 4 times as long as wide; palpus subequal in length to pedicel and postpedicel together.

Thorax black in ground color, with thin whitish-gray pruinosity; 3 broad longitudinal vittae visible on scutum, median vitta disappearing on anterior 1/2 of postsutural scutum, scutellum rarely reddish brown on extreme apex. One presutural and 2 postsutural acrostichal setae; 3 presutural and 3 postsutural dorsocentral setae; 0 presutural and 3 postsutural inter-alar setae; 3–4 supra-alar setae, if 4 setae present then 3rd seta shorter than others; 3 katepisternal setae; anepimeral seta at most reaching level of anterior 1/2 of lower calypter; anatergite bare; scutellum with 4 pairs of long marginal and 2–3 shorter erect discal setae, apical seta absent, sometimes 1 additional seta present on anterior portion of lateral scutellar seta; distance between bases of subapical scutellar setae about 1/2 of that between basal and subapical setae. Wing hyaline, weakly tinged with pale brown on basal and anterior portions, distinctly tinged with brown along r-m crossvein; lower calypter pale yellowish white; relative lengths of 2nd, 3rd and 4th costal sectors approximately as 3:5.5–6:2.5; length of vein M from dm-cu crossvein to bend more than distance between bend and wing margin (2:1.5). Legs black, sometimes reddish brown on posteroventral 1/2 of fore tibia and reddish yellow on median portion of mid and hind tibiae; pulvilli dull yellowish; fore tibia with 2 preapical dorsal setae, a row of anterodorsal and 2 posterodorsal setae; mid tibia with 3–4 anterodorsal, 4–5 posterodorsal and 1 ventral setae; hind tibia with a row of 6–7 anterodorsal, 4 posterodorsal and 4 ventral setae.

Abdomen black, sides of 3rd and 4th tergites sometimes reddish yellow, with rather dense grayish-white pruinosity of tessellate appearance on dorsum throughout, pruinosity thinner on venter. Hairs on dorsum dense, long and erect; syntergite 1+2 with a pair of fine median marginal and 2–3 lateral marginal setae; 3rd tergite with 2–3 pairs of strong median discal, 1–2 lateral discal, 2–4 median marginal and 2–3 lateral marginal setae, median discal setae rather irregularly set; 4th tergite with 2–3 pairs of strong median discal and a row of marginal setae, discal setae rather irregularly set; 5th tergite with an irregularly-set row of strong discal setae and a row of weaker marginal setae; 2nd to 4th sternite exposed, with dense, long hairs.

Terminalia: 6th tergite with thin grayish pruinosity, a row of rather strong marginal setae, free from syntergosternite 7+8 and about 1/3 as long as the latter; syntergosternite 7+8 and epandrium shining black; cerci in dorsal view rather narrow, narrowed from base to apical 1/2, then nearly parallel-sided or weakly narrowed to apex, with rather weak ridges on both side from basal 1/2 to 1/3, in lateral view nearly straight; surstylus nearly straight, narrowed to blunt apex, with a rather weak ridge on dorsal margin near middle and 3–4 spines on apex.

Female. Unknown.

Type material examined. Holotype male: [ Japan] Obihiro / S. Takano // 30.vi.1951 / Shikaribetsu [in Japanese ] ( CNC).

Additional material examined (all in KUM). Japan, Hokkaido: 1 male, Shiretoko, Shiretoko Pass, 8.vii.1986, H. Shima; 1 male, Mts. Daisetsu, Tenninkyo , 23.vi.1986, T. Saigusa ; 1 male, Mts. Daisetu, Tenninkyo , 13.vii.1976, T. Saigusa ; 3 males, Mts. Daisetsu, Aizankei , 1000–1800 m., 15–17.vii.1986, T. Saigusa, H. Shima & M. Abe ; 4 males, Mts. Daisetsu, Yukomanbetsu , 10–13.vii.1986, Shima. Honshu : 2 males, Nagano Pref. , Mt. Norikura , 1800– 2600 m, 26.viii.1979, K. Ohara ; 9 males, Nagano Pref. , Kamikochi , 1500 m, 27.vi.1988, S. Shinonaga ; 2 males, Nagano Pref. , Shimashima , 22.v.1975, A. Nakanishi ; 1 male, Yamanashi Pref. , Masutomi, Kanayama , 27.v.1975, A. Nakanishi ; 2 males, Yamanashi Pref. , S. Jpn. Alps, Okambasawa , 1500–2000 m, 25–26.vii.1986, H. Shima ; 1 male, Saitama Pref. , Irikawa, Ohtaki , 24.v.1987, K. Hara. Kyushu : 1 male, Kumamoto Pref. , Naidaijin , 650–800, 5.viii.1967, H. Shima .

Distribution. Japan (Hokkaido, Honshu, Kyushu); China (Inner Mongolia, Liaoning, Ningxia), Russia (Irkutsk, South Siberia, Sakha, Far East).

Remarks. This species appears to occur commonly in Hokkaido and north and central Honshsu, but is rare in Kyushu in Japan. It is also recorded from northern China ( Herting 1984; O’Hara et al. 2009; Zhang et al. 2016) and northeastern Russia (Siberia, Sakha (Yakut) and Far East) ( Zimin 1960; Richter 2004).

Figures

FIGURES 7–14. Male terminalia of Panzeria spp. 7–10. Panzeria atriventris sp. nov. (paratype, Mt. Zao, Honshu, Japan, KUM). 11–14. Panzeria inusta (Mesnil) (Aizankei, Hokkaido, Japan, KUM).7, 11. Male 5th abdominal sternite in ventral view (hairs omitted). 8, 12. Epandrium, cerci and surstylus in lateral view (hairs omitted). 9, 13. Same in dorsal view (hairs omitted). 10, 14. Hypandrium, pregonite, postgonite and phallus in lateral view. Scale bars: 0.3 mm for 7, 0.1 mm for 8–10 and 12–14, and 0.2 mm for 11.