Nalassus (Nipponalassus), Nabozhenko, Maxim & Ando, Kiyoshi, 2018

Nabozhenko, Maxim & Ando, Kiyoshi, 2018, Subtribal, Generic And Subgeneric Composition Of Darkling Beetles Of The Tribe Helopini (Coleoptera: Tenebrionidae) In The Eastern Palaearctic Region, Acta Zoologica Academiae Scientiarum Hungaricae 64 (4), pp. 277-327 : 306-308

Subgenus Nipponalassus subgen. n.

( Figs 13–16 )

Type species: Tarpela andoi Masumoto, 1993

Diagnosis. Body slender, shiny, brown. Head with posterior grooves ( Fig. 14A ) or with single deep wrinkle ( Fig. 16A ) beginning at lower aspect of eyes. Eyes large, close with each other dorsally. Male antennae thin, not thicker than in female. Hind wings developed. Abdominal ventrite 5 thickened and depressed at middle of apical half, with apical margin emarginate, and not beaded ( Figs 13G , 14D , 16B, D ). Trochanters with dense hair brushes

( Figs 13F , 14B, C , 16C ).

Additional characters of male. Mesoventrite covered with short setae and sparse long hairs along mesocoxae. Metaventrite densely pubescent at middle. Outer margin of protrochanters slightly elevated. Inner dorsal margin of profemora protrudent, flattened, often with pubescence near apex. Abdominal ventrites 1 and 2 with dense pubescence at each middle.

Comparison. See key to subgenera of the genus Nalassus .

Composition. The subgenus includes only two Japanese species.

Nalassus (Nipponalassus) andoi ( Masumoto, 1993) , comb. n.

( Figs 7I–M , 13 , 14 )

Masumoto, 1993: 134, figs 4, 10 ( Tarpela ); Nabozhenko & Löbl, 2008: 256 ( Tarpela ).

Type material examined. Holotype, m ( EUM) with labels: “ Holotype Tarpela andoi Masumoto ”, “ Mt. Miyanoura , Yakushima Is. 21.IX.1991, K. Ando ” . Paratypes: 4 m, 2 f ( CKA), Mt. Miyamoura , Yakushima Is., 22.ix.1991, leg. K. Ando.

basally, D = male abdominal ventrites

Material examined. 1 m, 1 f ( CKA): Japan, Yakushima Is., Satsuma, Onoma-pass (Yodogawa), 1400 m, 13.ix.2002 (leg. N. Ohbayashi); 8 exs. ( CKA), Onoma-pass ( Yodogawa ), Yakushima Is., Satsuma , alt. ca. 1,400 m, 14–15.ix.2002 (leg. N. Ohbayashi). Distribution. Japan (Ōsumi Islands: Yakushima Island) .

Nalassus (Nipponalassus) lewisi ( Masumoto, 1993) , comb. n.

( Figs 7O–R , 15 , 16 )

Masumoto, 1993: 132, figs 3. 9 ( Tarpela ); Nabozhenko & Löbl, 2008: 257 ( Tarpela ).

Type material examined. Holotype, m ( NMNS) with labels: “ Holotype Tarpela lewisi Masumoto ”, “Komagatake Hakone Date: 1-X-1966 Y. Miyake leg.” . Paratypes, 1 f ( CKA), Sasari Pass, Kyoto, 6.vii.1985, leg. K. Ando; 1 m ( CKA), Komagatake, Hakone, 1.x.1966, leg. Y. Miyake; 1 f ( CKA), Mt. Hira , Shiga, 3.vi.1957, leg. T. Shibata ; 1 f ( CKA), Mt. Daihi , Kyoto, 16.vi.1957, leg. T. Shibata .

Material examined. 1 m ( CKA): Japan, Tokushima, Kayô town, Unagitodoroki Mt. , 900–1040 m, 18.x.2008 (leg. Takashi Kurihara); 1 m, 2 f ( CKA): Japan, Tosa, Kikawamura vill., Yosakoegote pass, 25.ix.1999 (leg. S. Nagashima); 1 m, 3 f ( CKA), [Ehime-Pref.: Japan] Mt. Onigajyô , alt. 1,000–1,150 m, Uwajima City, 1–2.x.2008 (leg. T. Kurihara) ; 1 f ( CKA), Kuroson, Tosa , 22–23.v.1999 (leg. K. Ando) .

Distribution. Japan: Honshu, Shikoku, Kyushu; S. Korea.

Figures

Fig. 13. Nalassus (Nipponalassus) andoi, holotype and paratype. A = male, holotype, habitus, B = female paratype, habitus, C = male fore leg, dorsal margin, D = male profemur, inner side, E = aedeagus, dorsal view, F = prothorax, ventral view, G = abdominal ventrite 5, H = labels of the holotype

Fig. 14. Nalassus (Nipponalassus) andoi, details of structure. A = Head, ventral view, B = prothorax and base of fore legs, ventral side, C = male meso- and metaventrite, middle legs

Fig. 15. Nalassus (Nipponalassus) lewisi, holotype and paratype.A = male, holotype, habitus, B = female paratype, habitus, C = labels of the holotype, D = aedeagus, dorsal view

Fig. 16. Nalassus (Nipponalassus) lewisi (A, C–F) and N. (Nipponalassus) andoi (B), details of structure: A = head, ventral view, B = male abdominal ventrite 5, C = male meso- and metaventrite, middle legs basally, D = male abdominal ventrites, E = male profemur, inner side, F = male profemur dorsally

Fig. 7. The genus Nalassus, genital structure: N. (s. str.) pilushenmuus (A–D), N. (s. str.) zoltani (E–H), N. (Nipponalassus) andoi (I–M), N. (Nipponalassus) lewisi (O–R): A, E, I, O = aedeagus, ventral view, B, F, J, P = aedeagus, lateral view, C, G, K, Q = male inner sternite VIII, D, H, L, R = gastral spicula, M = female genital tubes (ag – accessory gland of spermatheca,