Physatocheila veteris Drake, 1942

Souma, Jun & Ishikawa, Tadashi, 2022, Taxonomic review of the tingine genera Cysteochila, Hurdchila, Physatocheila, and Xynotingis from Japan, with description of a new genus (Hemiptera: Heteroptera: Tingidae), Zootaxa 5150 (1), pp. 1-42 : 30-31

Physatocheila veteris Drake, 1942

( Figs. 8J , 9I , 10I , 11I , 17L , 18L )

Physatocheila veteris Drake, 1942: 10 . Holotype: macropterous ♂, Japan: Hokkaido, Sappora [= Japan: Hokkaido, Sapporo-shi, Minami-ku, Jozankei]; USNM.

Physatochila [incorrect subsequent spelling] veteris: Takeya (1951: 20) (checklist: eastern Asia).

Physatocheila veteris: Drake & Ruhoff (1965a: 338) (catalog); Tomokuni (1987: 117) (distribution); Tomokuni (1988: 652) (distribution); Péricart & Golub (1996: 56) (checklist: Palaearctic); Yamada & Tomokuni (2012: 200) (monograph); Ban (2013: 31) (distribution); Maehara (2013: 167) (distribution); Maehara (2014: 60) (distribution); Yamada & Ishikawa (2016: 432) (checklist: Japan); Ishikawa (2017: 63) (distribution); Nakatani (2019: 92) (distribution).

Specimens examined. Non-types (2 ♂♂ 5 ♀♀) , JAPAN: Hokkaido: Nukabira , 4.viii.1962, leg. Y. Miyatake (1 ♀, KUM) ; Nukabira, Fujigawa Riv. , 14.vi.1967, T. Saigusa (1 ♂, KUM) ; Sapporo, Moiwa , 9.v.1905, leg. S. Mitsuhashi (1 ♀, KUM) . Honshu: Tochigi Pref., Nikko, Kawamata , 5.vi.2013, leg. S. Maehara (1 ♂ 1 ♀, TUA) ; as above but 12.vi.2017 (2 ♀♀, TUA) .

Diagnosis. Recognized among other species of Physatocheila by a combination of the following characters: general color dark brown ( Figs. 8J , 9I , 10I , 11I ); median spine on head extending beyond bases of frontal spines; rostrum reaching posterior margin of metasternum; pubescence on pronotum less than 0.5 times as long as diameter of compound eye; lateral carinae of pronotum nearly parallel to each other throughout their length, not touching outer margin of paranota at anterior end; paranota incompletely covering pronotal disc in anterior part, not touching each other, not concealing median carina of pronotum, not widened posteriorly, not bulged upward in posterior part, not forming a cyst; outer margin of paranotum nearly straight in its entire length; costal area of hemelytron narrower than subcostal area at widest part, less than 0.5 times as wide as discoidal area at widest part, with 2 rows of areolae in its entire length; and subcostal area subhorizontal, with 4 rows of areolae in its entire length.

Description of genitalia. Pygophore ( Figs. 10I , 17L ) compressed dorsoventrally, hexagonal in ventral view, strongly concave at anterior margin of dorsum, elevated at center of venter, smooth on surface, irregularly punctate in middle part of dorsum. Paramere ( Fig. 18L ) expanded in middle part, curved inward in apical part; outer and inner margins covered with pubescence in middle part. Female terminalia ( Fig. 11I ) pentagonal in ventral view, covered with pubescence.

Remarks. Physatocheila veteris closely resembles P. miyatakei in general appearance but can be easily distinguished from it by the following characteristics: hood low-dome-shaped ( Fig. 8J ); lateral carinae of pronotum not touching outer margin of paranota at anterior end; and subcostal area with 4 rows of areolae at widest part.

Although the type locality of P. veteris was indicated as “Sappora, Hokkaido, Japan ” ( Drake 1942), the label on the holotype mentions “Sapporo, Ḯ山渓” [= Japan: Hokkaido, Sapporo-shi, Minami-ku, Jozankei] (http://n 2t. net/ark:/65665/3f08f65a6-6114-49e3-bea7-2b16f69678c5) .

Distribution. Japan (Hokkaido, Honshu).

Host plant. Unknown ( Drake & Ruhoff 1965a).

Biology. Adults were observed from May to September (Tomokuni 1987, 1988; Ban 2013; Maehara 2013, 2014; Ishikawa 2017; Nakatani 2019; present study), and nymphs were collected in July ( Maehara 2013, 2014). The overwintering stage remains unknown.

Figures

FIGURE 8. Nine Physatocheila species from Japan. Dried specimens, dorsal view: P. chiniana comb. nov. (A); P. consueta comb. nov. (B); P. distinguenda (C); P. euthenia comb. nov. (D); P. fieberi from Japan proper (E); P. fieberi from the Ryukyu Islands (F); P. miyatakei (G); P. nigrintegerrima (H); P. orientis (I); P. veteris (J). Scale bar: 1.0 mm.

FIGURE 9. Rostra and sternal laminae of nine Physatocheila species from Japan, ventral view: P. chiniana comb. nov. (A); P. consueta comb. nov. (B); P. distinguenda (C); P. euthenia comb. nov. (D); P. fieberi (E); P. miyatakei (F); P. nigrintegerrima (G); P. orientis (H); P. veteris (I). Scale bars: 0.2 mm.

FIGURE 10. Male terminalia of nine Physatocheila species from Japan, ventral view: P. chiniana comb. nov. (A); P. consueta comb. nov. (B); P. distinguenda (C); P. euthenia comb. nov. (D); P. fieberi (E); P. miyatakei (F); P. nigrintegerrima (G); P. orientis (H); P. veteris (I). Scale bars: 0.2 mm.

FIGURE 11. Female terminalia of nine Physatocheila species from Japan, ventral view: P. chiniana comb. nov. (A); P. consueta comb. nov. (B); P. distinguenda (C); P. euthenia comb. nov. (D); P. fieberi (E); P. miyatakei (F); P. nigrintegerrima (G); P. orientis (H); P. veteris (I). Scale bars: 0.2 mm.

FIGURE 17. Pygophores of eleven species of Cysteochila and its close relatives from Japan, dorsal view: C. abundantis (A); Limnostatua lewisi comb. nov. (B); Physatocheila chiniana comb. nov. (C); P. consueta comb. nov. (D); P. distinguenda (E); P. euthenia comb. nov. (F); P. fieberi from Japan proper (G); P. fieberi from the Ryukyu Islands (H); P. miyatakei (I); P. nigrintegerrima (J); P. orientis (K); P. veteris (L). Scale bars: 0.1 mm.

FIGURE 18. Parameres of eleven species of Cysteochila and its close relatives from Japan, dorsal view: C. abundantis (A); Limnostatua lewisi comb. nov. (B); Physatocheila chiniana comb. nov. (C); P. consueta comb. nov. (D); P. distinguenda (E); P. euthenia comb. nov. (F); P. fieberi from Japan proper (G); P. fieberi from the Ryukyu Islands (H); P. miyatakei (I); P. nigrintegerrima (J); P. orientis (K); P. veteris (L). Scale bars: 0.1 mm.