Physopelta (Neophysopelta) lutaspidata, Souma & Ishikawa, 2021

Souma, Jun & Ishikawa, Tadashi, 2021, A taxonomic review of the genus Physopelta (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan, with a new record of Ph. parviceps from China, Zootaxa 4951 (3), pp. 461-491 : 470-475

publication ID	https://doi.org/ 10.11646/zootaxa.4951.3.3
publication LSID	lsid:zoobank.org:pub:ADA22E04-9548-4ECC-AF84-18E51955852B
DOI	https://doi.org/10.5281/zenodo.4668181
persistent identifier	https://treatment.plazi.org/id/351AAE4D-0252-FFEE-3295-BFC7FD33FCAC
treatment provided by	Plazi
scientific name	Physopelta (Neophysopelta) lutaspidata
status	sp. nov.

Treatment

Physopelta (Neophysopelta) lutaspidata sp. nov.

( Figs. 1H View FIGURE 1 , 3C View FIGURE 3 , 4C View FIGURE 4 , 5B View FIGURE 5 , 6B View FIGURE 6 , 7B View FIGURE 7 , 8B View FIGURE 8 , 9B View FIGURE 9 , 10B View FIGURE 10 , 11B View FIGURE 11 , 12B View FIGURE 12 )

Type series. HOLOTYPE (macropterous ♂), TAIWAN: Yilan County: “Taiheizan (Taihoku-shû), Tamonkei” [= Datong Township, Mt. Taiping-shan, Towenchi ?], 23.vii.1932, leg. T. Esaki ( ELKU) . PARATYPE (macropterous 7 ♂♂ 5 ♀ ♀), TAIWAN: Yilan County: “Taiheizan (Taihoku-shû), Kamiyodani” [= Datong Township, Mt. Taiping-shan , “Ṗ代ĕ”?], 25.vii.1932, leg. T. Esaki (1 ♂, ELKU) ; “Taiheizan (Taihoku-shû)” [= Datong Township, Mt. Taipingshan ?], 26.vii.1932, leg. K. Satô (1 ♂, ELKU) . Nantou County: Shanlinxi , 12.ix.2009, leg. J.F. Tsai (3 ♂♂ 3 ♀♀, NMNS; 2 ♂♂, 2 ♀♀, NCHU) .

Diagnosis. Recognized among other species of Physopelta by a combination of the following characters: only macropterous morph known; body 2.8 times as long as maximum width across fore wings ( Fig. 1H View FIGURE 1 ); calli and disc of pronotum orange ( Fig. 5B View FIGURE 5 ); scutellum orange, with numerous pale callosities; membrane of fore wing dark brown ( Fig. 6B View FIGURE 6 ); abdominal sternites paler brown with dark brown lunulae on sutures ( Figs. 3C View FIGURE 3 , 4C View FIGURE 4 ); compound eye less than 0.3 times as wide as vertex in dorsal view; antennomere I shorter than antennomere II; antennomere II nearly clavate; calli in male not convex; punctures of scutellum denser in central part than in marginal part, as large as punctures of pronotum; anterior margins of fore wings not parallel to each other in rest; procoxal projection absent ( Fig. 7B View FIGURE 7 ); protrochanteral wrinkles present; male profemur less than 2 times as wide as mesofemur at widest part of each; male protibia lacking tooth at apex, with a single row of denticles throughout its length ventrally; peritreme of scent gland ostiole teardrop-shaped, protruding laterad ( Figs. 8B View FIGURE 8 , 10B View FIGURE 10 ); infolding of ventral rim of genital capsule most convex in middle part ( Fig. 9B View FIGURE 9 ); outer margin of endophallic reservoir outgrowth emarginate in apical part ( Fig. 11B View FIGURE 11 ); stem of paramere emarginate in basal part ( Fig. 12B View FIGURE 12 ); and crown of paramere at apex not convex in posterior view.

Description. Macropterous male. Head, compound eye, antenna except basal part of antennomere IV, punctures on dorsum, membrane of fore wing, two spots on corium of fore wing, legs, venter of thorax, and sutures of abdominal sternites dark brown; basal part of antennomere IV white; pronotum and corium of fore wing orange; scutellum orange, with numerous pale callosities; abdominal sternites except sutures paler brown; pubescence on body yellowish ( Figs. 1H View FIGURE 1 , 3C View FIGURE 3 , 4C View FIGURE 4 , 5B View FIGURE 5 , 6B View FIGURE 6 ).

Body oblong, covered with minute pubescence, 2.8 times as long as maximum width across fore wings ( Fig. 1H View FIGURE 1 ). Head ( Fig. 5B View FIGURE 5 ) 0.6 times as long as maximum width across compound eyes. Compound eye less than 0.3 times as wide as vertex in dorsal view. Antenna smooth on surface; antennomere I shorter than antennomere II, with three spine-like setae in basal part; antennomere II nearly clavate; antennomere III narrower than compound eye in dorsal view; antennomere IV longest among antennomeres; ratios of lengths from antennomeres I to IV as 1.4: 1.5: 1.0: 1.6.

Pronotum ( Fig. 5B View FIGURE 5 ) 0.5 times as long as its maximum width; lateral margins slightly emarginate between calli and disc; calli not convex, smooth on surface; disc flat, with a number of punctures. Scutellum triangular, with a number of punctures; punctures denser in central part than in marginal part, as large as punctures of pronotum. Fore wings ( Figs. 1H View FIGURE 1 , 6B View FIGURE 6 ) with a number of punctures; anterior margins not parallel to each other in rest. Foreleg longest among all legs; procoxa ( Fig. 7B View FIGURE 7 ) without projection; protrochanter with wrinkles; all femora with two longitudinal furrows throughout its length in ventral surface; longitudinal furrow with a single row of denticles; profemur less than 2 times as wide as mesofemur at widest part of each, with three teeth at apex ventrally; protibia without tooth at apex, with a single row of denticles throughout its length ventrally; meso- and metatibia with a number of spine-like setae throughout its length. Peritreme of scent gland ostiole ( Figs. 8B View FIGURE 8 , 10B View FIGURE 10 ) teardrop-shaped, protruding laterad.

Abdomen ( Figs. 3C View FIGURE 3 , 4C View FIGURE 4 ) longer than length combined length of head and pronotum. Genital capsule ( Fig. 9B View FIGURE 9 ) spherical, semicircular in ventral view, smooth on surface; infolding of ventral rim most convex in middle part. Phallus ( Fig. 11B View FIGURE 11 ) oblong; capitate process membranous; basal plate and phallotheca coriaceous; conjunctiva membranous with two pairs of partly sclerotized conjunctival appendages; endophallic reservoir with a pair of outgrowths; outer margin of outgrowth emarginate in apical part. Paramere ( Fig. 12B View FIGURE 12 ) longer than its maximum width across crown; stem emarginate in basal part; crown at apex not convex in posterior view.

Measurements (holotype). Body length with fore wings 10.6 mm, maximum width across fore wings width 3.8 mm; head length 1.1 mm, maximum width across compound eyes 1.8 mm; length of antennomeres I to IV 2.1 mm, 2.3 mm, 1.5 mm, and 2.4 mm, respectively; pronotum length 1.9 mm, maximum width 3.5 mm; scutellum length 1.5 mm, maximum width 1.8 mm; corium length 5.7 mm, maximum width 1.9 mm.

Brachypterous morph unknown in both sexes.

Remarks. Stehlík (2013) recognized four subgenera in the genus Physopelta : Afrophysopelta , Neophysopelta , Physopeltoides , and the nominotypical Physopelta . Five of the important distinctions between the subgenera are as follows: length of antennomere I; presence or absence of procoxal projection and protrochanteral wrinkles; swelling of calli; curvature of male protibia; and shape of peritreme of scent gland ostiole. On that basis, Ph. (N.) lutaspidata sp. nov. shares the following characteristics with four known subgenera: antennomere I shorter than antennomere II ( Afrophysopelta , Neophysopelta , and Physopeltoides ) ( Fig. 1H View FIGURE 1 ); procoxal projection absent ( Afrophysopelta and Physopeltoides ) ( Fig. 7B View FIGURE 7 ); protrochanteral wrinkles present ( Neophysopelta and Physopelta s. str.); profemur in male less than 2 times as wide as mesofemur at widest part of each ( Afrophysopelta ); male protibia lacking tooth at apex, with a single row of denticles throughout its length ventrally ( Neophysopelta ); and peritreme of scent gland ostiole teardrop-shaped, protruding laterad ( Physopelta s. str.) ( Figs. 8B View FIGURE 8 , 10B View FIGURE 10 ). However, the new species can be provisionally placed into Neophysopelta based on the general similarity, but Neophysopelta may need to be redefined.

This remarkable new species is easily distinguished from other species of Physopelta by the following characteristics: antennomere I shorter than antennomere II ( Fig. 1H View FIGURE 1 ); calli in male not convex ( Fig. 5B View FIGURE 5 ); procoxal projection absent ( Fig. 7B View FIGURE 7 ); profemur in male less than 2 times as wide as mesofemur at the widest part of each; peritreme of scent gland ostiole teardrop-shaped, protruding laterad ( Figs. 8B View FIGURE 8 , 10B View FIGURE 10 ); protibia in male without tooth at apex, with a single row of denticles throughout its length ventrally; and stem of paramere emarginate in the basal part ( Fig. 12B View FIGURE 12 ).

Distribution. Taiwan (northern and central parts of main island).

Etymology. The species epithet is the Latin adjective “ luteus ” (meaning yellow) and “ aspidatus ” (meaning “having a shield”), referring to the feature of the orange scutellum.

Host plant. Unknown.

Biology. Adults were collected only in July.