Leiodes shigehisai, Hoshina, 2012
publication ID |
https://doi.org/ 10.5281/zenodo.4272467 |
DOI |
https://doi.org/10.5281/zenodo.4339392 |
persistent identifier |
https://treatment.plazi.org/id/03E98224-3292-07FF-76EB-4088FE4EA5E8 |
treatment provided by |
Felipe |
scientific name |
Leiodes shigehisai |
status |
sp. nov. |
34. Leiodes shigehisai View in CoL sp. nov.
Japanese name:Ainu-ô-tamakinokomushi ( Figs. 98–100 View Fig View Fig View Fig )
Type locality. Japan, Hokkaido, Mts. Daisetsu, Mikura-zawa.
Type material. JAPAN: HOKKAIDO: HOLOTYPE: ♂, Mts. Daisetsu, Mikura-zawa , 7.–15.viii.1999, S. Hori leg. ( PT) ( MNHAH) . PARATYPES: 3♀♀, same data as holotype ( FUFJ) ; 1♂, Mts. Daisetsu, Mt. Kurodake , 8.ix.1981, N.Yadusa leg. ; 1♀, 21.viii.1981, 1♀, 21.viii.1981, 1♂, 30.vii.1987, 1♀, 11.viii.1987, same data as the former except for the date ( FUFJ) ; 1♀, Mts. Hidaka, Mt. Poroshiri , 23.vii.1988, N.Yasuda leg. ( FUFJ) ; 1 ♀, Mt.Yôtei , 29.vii.1989, N. Yasuda leg. ( FUFJ) ; 1 ♂, 1 ♀, Rishiri Is., Mt. Rishiridake , 17.–31.vii.2001, S. Hori & M. Maruyama leg. ( PT) ( FUFJ) .
Examined specimens of related species. Leiodes rugosa Stephens, 1829 . 2 ♂♂, 2 ♀♀, United Kingdom, Bedfordshire, 8.x.1994, I. Ashby leg. ( FUFJ).
Diagnosis. Body 3.1–3.6 mm long, ca. 1.8× as long as wide. Dorsum almost unicolor or bicolored. Head and pronotum brown, dark brown or blackish brown. Elytra brown or dark brown, often with blackish brown stripe near elytral suture. Each elytron with nine distinct rows of punctures, subhumeral row reduced. Mesoventrite with a very shallow excavation between median carina and transverse carina. Median carina of mesoventrite low. Mesotibiae without distinct sexual dimorphism. Metatibiae almost straight in both sexes. Female abdominal sternite 8 with a spiculum ventrale.
Description. Measurements of holotype: Body length 3.3 mm; head 0.45 mm in length and 0.90 mm in width; pronotum 0.98 mm in length and 1.6 mm in width; elytra 2.2 mm in length and 2.0 mm in width.
Coloration. Dorsum relatively strongly shining, usually bicolored ( Figs. 98D, 98E View Fig ), rarely unicolor ( Fig. 98C View Fig ); head, pronotum and scutellum brown, dark brown or blackish brown; elytra almost unicolor ( Figs. 98C, 98D View Fig ) or bicolored ( Fig. 98E View Fig ), brown or dark brown, often with blackish brown stripes near elytral suture ( Fig. 98E View Fig ); antennomeres 1–6 and 8 brown; remaining antennomeres a little darker; legs light brown with all brown coxae; mesoventrite, metaventrite, and abdominal ventrites brown.
Body 3.1–3.6 mm in length, ca. 1.8× as long as wide.
Head ca. twice as wide as long, ca. 0.48× as long as and 0.58× as wide as pronotum, distinctly punctate ( Fig. 98A View Fig ), usually bearing some large punctures ( Fig. 98A View Fig ); antennomeres 1–4 each longer than wide; antennomeres 5 and 11 each about as long as wide; remaining antennomeres each wider than long; antennomere 11 oval ( Fig. 98F View Fig ); relative lengths of antennomeres 2 to 11 – 2.9: 4.3: 2.3: 2.3: 1.9: 3.1: 1.0: 3.3: 3.3: 5.4.
Pronotum ca. 1.6× as wide as long, ca. 0.44× as long as and 0.83× as wide as pronotum, widest at base, simply and very feebly curved at posterior margin, distinctly punctate as head ( Fig. 98A View Fig ).
Scutellum minutely or strongly punctate.
Elytra ca. 1.1× as long as wide in dorsal view, widest ca. at basal 2/5 ( Fig. 98A View Fig ), transversely strigose, almost impunctate except for small number of punctures between rows of punctures ( Fig. 98G View Fig ); each elytron with nine rows of punctures, row 9 invisible in dorsal view, subhumeral row as long as 1/4 of elytra in length ( Fig. 98B View Fig ); sutural stria fine, reaching from apex to ca. apical 3/5 of the elytral length.
Metathoracic wings fully developed.
Mesoventrite strongly microreticulate, impunctate, almost glabrous, with one very shallow excavation between median carina and transverse carina ( Fig. 98H View Fig ); median carina of mesoventrite low ( Fig. 98H View Fig ); metaventrite sparsely and finely pubescent, weakly microreticulate except for almost smooth middle portion bearing minute but distinct punctures (setal sockets).
Legs showing sexual dimorphism on protarsi and metatarsi; protibiae gradually and feebly widening from base towards apex ( Figs. 99E, 99F View Fig ); metafemora slender, feebly expanded at about midlength of posterior margins ( Figs. 99C, 99D View Fig ), with small dorsal projection posteroapically ( Figs. 99G, 99H View Fig ); metatibiae almost straight ( Figs. 99C, 99D View Fig ).
Male. Tarsomeres 2–4 of protarsi clearly expanded ( Fig. 99A View Fig ); tarsomeres 2–4 of mesotarsi a little expanded; abdominal sternite 8 moderately curved ( Fig. 100D View Fig ); aedeagus slender ( Figs. 100A, 100B View Fig ); median lobe bluntly, apically pointed in dorsal view ( Fig. 100A View Fig ), distinctly curved and apically pointed in lateral view ( Fig. 100B View Fig ); each paramere fringed at apex, bearing three apical setae, and clearly thickening from basal third towards apex in lateral view ( Fig. 100B View Fig ); inner sac as shown in Fig. 100C View Fig .
Female. Protarsi and mesotarsi slender ( Fig. 99B View Fig ); abdominal sternite 8 with a spiculum ventrale at central point of anterior margin ( Fig. 100E View Fig ); coxites and stylus as shown in Fig. 100F View Fig .
Differential diagnosis. Leiodes shigehisai sp. nov. is similar to L. yoshitakei sp. nov. in the usually bicolored dorsal coloration, but can be distinguished from it by having each elytron with nine distinct rows of punctures ( Fig. 98A View Fig ). In contrast, L. yoshitakei sp. nov. has the elytra densely and strongly punctate between striae, therefore the elytra superficially appear not to bear rows of punctures ( Fig. 24A View Fig ). Leiodes shigehisai sp. nov. also resembles L. rugosa Stephens, 1829 occurring in the Russian Far East by having transversely strigose elytra, but can be separated from it by having the parameres feebly expanded at the lateral margins in the dorsal view ( Fig. 100A View Fig ). In contrast, L. rugosa has the parameres relatively strongly expanded at midlength.
Etymology. The species is dedicated to Mr. Shigehisa Hori who kindly gave me many valuable specimens of Leiodes used in this study.
Distribution. Japan: Hokkaido.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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