Maladera futschauana ( Brenske, 1897 )

Fabrizi, Silvia, Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2021, A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 4922 (1), pp. 1-400 : 102-104

Maladera futschauana ( Brenske, 1897)

Figures 21 E–H, 95

Autoserica futschauana Brenske, 1897: 404 .

Maladera futschauana: Ahrens 2006b: 237, 2007b: 23 .

Autoserica atavana Brenske, 1902: 62 , syn. n.

Autoserica montivaga Moser, 1915: 348 , syn. n.

Type material examined. Holotype ( futschauana ): ♀ “ ♀ / China Futschau/ coll. Brenske / Autoserica futschauana Type Brsk/ futschauana Brsk. ” ( ZMHB) . Syntype ( atavana ): 1 ♂ “Museum Paris Louang-Prabang A Theng A. Pavie 1888/ Autoserica atavana Typ. ♂ Brenske/ Type” ( MNHN) . Syntype ( montivaga ): 1 ♂ “ Tonkin Montes Mauson April, Mai 2-3000’ H. Fruhstorfer / Autoserica montivaga Type Mos.” ( ZMHB) .

Additional material examined. China: 1 ♂ “ China, E Hubei, 7.-10.V. Dabie Shan, 31.1N 115.8E Wujiashan forest park Jaroslav Turna leg., 2004” ( ZFMK) , 1 ♂ “ Chekiang China / OL Cartwright Collection 1959” ( USNM) , 1 ♂ “ Dujun , Guizhou, 7.VI.1981, leg. Li Fasheng ”( CAU) , 1 ♂ “ Defu, Napo , Guangxi, 5.IV.1998, 1440m, leg. Li Wenzhu ” ( IZAS) , 1 ♂ “ Mt. Eshan , VI.1979, No.310” ( IZAS) , 1 ♂ “ Mt. Yanshan, Guilin , Guangxi, 7.XII.1953 ” ( IZAS) , 1 ♂ “ Moxi, Luding , Sichuan, 13.VI.1983, 1600m, leg. Chai Huaicheng ” ( IZAS) , 1 ♂ “ Yongsheng , Yunnan, VI.1955 ” ( IZAS) , 1 ♂ “ Huangkeng, Jianyang , Fujian, 20.VI.1960, 270- 300m, leg. Zuo Yong ” ( IZAS) , 1 ex. (♂) “Museum Paris Kiang-Si A. David 1875” ( MNHN) , 1 ♂ “ Kuatun (2300 m) 27, 40 n. Br. 117,40 ö. L. J. Klapperich 3.5.1938 (Fukien)” ( ZFMK) , 6 ♂♂, 5 ♀♀ “ China: E-Yunnan; Damaidi 2500m, Guangnan near Vietnam VII-2003 leg. Li et al. ” ( ZFMK) , 1 ♂ “ China, Guangdong prov., Danxia Shan NP, 23.iv.2013 (garden: at light) 25°02.4’N, 113°45.0’E 100 m J. Hájek & J. Růžicka leg.” ( NMPC) , 2 ♂♂, 2 ♀♀ “Museum Paris Se-Tchouen Env. De Ta-Sein-Lou Mo-Sy-Mien Pére Aubert 1902” ( MNHN) . Myanmar: 1 ex. “ Tenasserim Tandong 4000’ Mai Fruhstorfer leg.” ( MNHN) , 1 ♂ “Myanmar N (Burma) 25 km E Putao, H= 800 m Nan Sa Bon vill. 06- 09.05.1998 leg. S. Murzin & V. Sinaev / cf. atavana / 707 Asia Sericini spec.” ( ZFMK) . Thailand: 1 ex. “ N. Thailand 27.III.-3.IV.1990 Doi Inthanon lg. Malicky” ( ZSM) , 1 ♂ “ Thailand bor. Hang Dong 6.1990. lgt. Wimmer” ( ZFMK) . Vietnam: 1 ex. “ N. Vietnam (Tonkin) Tam Dao 12.- 24.5.1989 Pacholátko leg./ VS 32” ( CP) . Cambodia: 1 ex. “ Cambodia: Kirirom Nat. Park 780 m, 11°21’23’’N, 104°4’38’’E, 2.-17.I.2000 M. & S. Murzin ” ( ZFMK) . Laos: 1 ♂ “X-DA4704 Laos Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. ) 20°12’N, 104°01 ’ 15.-30.iv.2014 leg. C. Holzschuh—ZFMK Ankauf 2014 Maladera attavana” ( ZFMK) , 1 ♂ “X-DA4925 Laos Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. ) 20°12’N, 104°01 ’ 15.-30.iv.2014 leg. C. Holzschuh—ZFMK Ankauf 2014 Maladera attavana” ( ZFMK) , 1 ♂ “X-DA4821 Laos Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. ) 20°12’N, 104°01 ’ 15.-30.iv.2014 leg. C. Holzschuh—ZFMK Ankauf 2014 Maladera attavana” ( ZFMK) , 1 ♂ “X-DA4824 Laos Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. ) 20°12’N, 104°01 ’ 15.-30.iv.2014 leg. C. Holzschuh—ZFMK Ankauf 2014 Maladera attavana” ( ZFMK) , 1 ♂ “X-DA4670 Laos Hua Phan prov.; Ban Saleui, Phou Pan ( Mt. ) 20°12’N, 104°01 ’ 15.-30.iv.2014 leg. C. Holzschuh—ZFMK Ankauf 2014 Maladera attavana” ( ZFMK) .

Doubtful record: 1 ♂ “proxima Burm. Narkondan Ribbe” ( EMAU).

Redescription. Length: 6.5 mm, length of elytra: 5.1 mm, width: 4.6 mm. Body oval, dark reddish brown to blackish, antenna yellow, club brown, dorsal surface dull, except some single setae on head dorsal surface nearly glabrous.

Labroclypeus wide and trapezoidal, shiny, widest at base, lateral margins convex and strongly convergent anteriorly, anterior angles blunt and slightly reflexed, anterior margin moderately emarginate, margins moderately reflexed; lateral margin and ocular canthus produce a blunt angle; surface flat, finely and densely punctate, with a few erect setae anteriorly; frontoclypeal suture indistinctly incised, curved; smooth area anterior to eye flat, 1.5 times as wide as long; ocular canthus long and moderately wide (nearly 1/3 of ocular diameter), finely and sparsely punctate, with a terminal seta. Frons dull, with fine, dense punctures and a few single erect setae beside eyes. Eyes large, ratio diameter/ interocular width: 0.6. Antenna with ten antennomeres; club with three antennomeres and weakly reflexed, 1.2 times as long as remaining antennomeres combined. Mentum elevated and slightly flattened anteriorly.

Pronotum moderately transverse, widest at base, lateral margins evenly convex and moderately convergent anteriorly, anterior angles moderately produced and right-angled, posterior angles blunt, weakly rounded at tip; anterior margin weakly convex, with fine and complete marginal line, base without marginal line; surface finely and densely punctate, with minute setae in punctures, otherwise glabrous; lateral and anterior margin finely setose; hypomeron carinate, not produced ventrally. Scutellum wide, triangular, dull, with fine, sparse punctures.

Elytra widest shortly behind middle, striae distinctly impressed, finely and sparsely punctate, intervals weakly convex, with fine and sparse punctures concentrated along striae, with minute setae in punctures, odd intervals with a few single short setae; epipleural margin robust, ending at strongly curved external apical angle of elytra, epipleura densely setose; apical border of elytra membraneous, with narrow rim of microtrichomes (at ca 100x magnification).

Ventral surface dull, coarsely and moderately densely punctate, metasternum sparsely covered with sparse fine setae; metacoxa with a few longer setae laterally, otherwise glabrous. Abdominal sternites finely and irregularly densely punctate, glabrous, each sternite with a transverse row of coarse punctures each bearing a robust long seta. Mesosternum between mesocoxae as wide as mesofemur. Ratio of length of metepisternum/metacoxa: 1/1.6. Pygidium moderately convex and dull, coarsely and densely punctate, without smooth midline, with a few longer setae along apical margin.

Legs moderately wide and short, weakly shiny; femora with two longitudinal rows of setae, finely and sparsely punctate. Metafemur dull, with anterior margin acute, with continuous serrated line behind anterior margin, setae of anterior row very short; posterior margin smooth and moderately widened at apex ventrally, not serrate dorsally, with just a few short setae basally. Metatibia short, widest at apex, ratio of width/length: 1/2.7, sharply carinate dorsally, with two groups of spines, basal group at middle, apical group at four fifths of metatibial length, with a few short robust setae basally with serrated margin; lateral face weakly longitudinally convex, sparsely punctate on basal half and sides, with minute setae in punctures; ventral margin finely serrate, with three robust setae of which the apical one is more distant; medial face smooth and glabrous; apex finely serrate, moderately truncate interiorly near tarsal articulation. Tarsomeres dorsally smooth and glabrous, neither laterally nor dorsally carinate, sparsely setose ventrally; metatarsomeres with a strongly serrated ridge ventrally and a smooth subventral longitudinal carina; first metatarsomere slightly shorter than following two tarsomeres combined and slightly longer than dorsal tibial spur. Protibia short, bidentate; anterior claws symmetrical, basal tooth of both claws bluntly truncate at apex.

Aedeagus: Fig. 21 E–G. Habitus: Fig. 21H .

Distribution. See map ( Fig. 95 ) and Table 1.

Figures

FIGURE 21. A–D: Maladera invenusta (Moser) (China: Guangxi: Banbaxiang); E–H: M. futschauana (Brenske, 1897) (syntype: Autosercia montivaga Moser, 1915; Vietnam: Montes Mauson); I–L: M. longruiensis Ahrens, Fabrizi & Liu, sp. n. (holotype). A, E, I: aedeagus, left side lateral view; C, G, K: aedeagus, right side lateral view; B, F, J: parameres, dorsal view; D, H, L: habitus. Scale: 0.5 mm. Habitus not to scale.

FIGURE 95. Distribution of the Maladera teizoana group: Maladera fereobscurata sp. n., M. futschauana (Brenske, 1897), M. invenusta (Moser, 1918), Maladera piceola (Moser, 1915) (not precisely localized collection site indicated by a “?”).