Chelyolygus fuhoshoensis ( Poppius, 1915 ), 2024

Chelyolygus fuhoshoensis ( Poppius, 1915) , new combination

( Figs. 4 View Fig A−E, 5A−D, 21A–G, 22F–I)

Lygus fuhoshoensis Poppius, 1915: 32 .

Lygocoris (Apolygus) fuhoshoensis : Lu & Zheng, 1998: 186 (new combination); Zheng et al., 2004: 149 (diagnosis).

Apolygopsis fuhoshoensis : Yasunaga et al., 2018: 374 View Cited Treatment (new combination).

Type material. Holotype: Male, TAIWAN: Fuhosho, Formosa [= current Maobu, Puli, Nantou Co., 23°56′N 120°56′E], H. Sauter, 7 September (deposited in Senckenberg German Entomological Institute) [image examined] GoogleMaps . Additional material: TAIWAN: 1 male, C. Taiwan, Kakuan [Nantou Co.], N. Fukuhara, 13 May 1971 ( TYCN) ; 1 male, E. Taiwan, Tentsiang [Hualien Co.], N. Fukuhara, 16 May 1971 ( NMNS) ; 1 female, Nantou Co., Ren’ai Township, Wushe –Puli, 24°00′N, 120°00′E, S. Gotoh, 21 May 1989 ( TYCN) GoogleMaps ; 2 females, Nantou Co., Ren’ai Township , Puli, S. Gotoh, 12–13 May 1989 ( TYCN) .

Diagnosis. This new species is recognised by the following characters: Pale stramineous brown basic colouration; relatively polished dorsum with striped pattern on and hemelytron ( Fig. 4A, C View Fig ); and mesally striped or maculate scutellum, in addition to the characters mentioned in the above key. Further external features were described by Poppius (1915) and images of the holotype male are available on a database ( National Museum of Natural Science, 2023). The female and male genitalia are herein described for the first time.

Description. Female: Externally similar to male. Antennomere II widely pale brown, with dark apex. Scutellum with brown, narrow, triangular macula anteromesally. Male genitalia ( Figs. 5A–D View Fig , 21G View Fig , 22F–G View Fig ): Left paramere L-shaped, stout, with weak apical protuberance at apex of sensory lobe ( Figs. 5B View Fig , 22F View Fig ); right paramere with simple, tapered hypophysis ( Fig. 5C View Fig ). Vesica with two stout spicules ( Figs. 5D View Fig , 22G View Fig , 1–2 View Fig View Fig ) and short lobal sclerite (3). Female genitalia ( Figs. 4D, E View Fig , 22H, I View Fig ): sclerotised rings ( Fig. 4E View Fig ) elongate-ovoid, relatively large; posterior wall ( Fig. 22H, I View Fig ) with kidney-shaped dorsal structure that is uniformly spinulate; interramal sclerite with rows of spines anteriad.

Measurements. See Table 1.

Distribution. Taiwan (Hualien, Nantou).

Biology. Unknown.

Remarks. This Taiwanese taxon has been regarded as a member of Apolygopsis ( Yasunaga et al., 2018) . Nonetheless, the present examination of additional specimens revealed that this species should be placed in Chelyolygus , new genus, as they share the following diagnostic characters: rather polished dorsum with sparsely distributed, minute punctures on pronotum ( Fig. 21A View Fig ); a few rows of lines on clavus ( Figs. 4A, C View Fig , 21B View Fig ); brown tibial spines; two elongate spicules ( Figs. 5D View Fig , 22G View Fig , 1–2 View Fig View Fig ) and a horn-like lobal-sclerite ( Figs. 5D View Fig , 22G View Fig , 3 View Fig ) on vesica; small, elongate-ovoid sclerotised rings ( Fig. 4E View Fig ); and posterior wall with a row of spinules and small, kidney-shaped dorsal structure, lacking lateral lobe ( Fig. 22H, I View Fig ).