Maladera verticalis ( Fairmaire, 1888 )

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 : 73-74

Maladera verticalis ( Fairmaire, 1888)

Figures 14 K–O, 94

Serica verticalis Fairmaire, 1888 b: 118 ; Murayama 1954: 59.

Aserica verticalis: Murayama 1938: 14 .

Autoserica verticalis: Brenske 1897: 377 .

Maladera verticalis: Kim & Lee 1997: 127 ; Kim & Kim 2003: 90; Ahrens 2007b: 5 .

Maladera castanea koreana Kim & Kim, 2003b: 90 ; syn by Ahrens 2007b: 5.

Autoserica hiekei Frey, 1972a: 169 ; Maladera hiekei: Ahrens: 2006b: 235, 2007b: 5 , 20, syn. n.

Type material examined. Lectotype ( verticalis , des. by Ahrens 2006b): ♂ “Museum Paris 1906 Coll. Leon Fairmaire/ Serica orientalis Motsch. Pekin / Serica verticalis Frm. Pekin / Typus” ( MNHN) . Holotype ( hiekei ): “Chang Yang near Ichang 4-6000 ft. V.VII.VIII./ ♂ / mit verticalis identisch/ ovatula Fairm. / coll. Brenske / Type Autoserica hiekei G. Frey 1972 ” ( ZMHB) . Paratype ( hiekei ): 1 ♀ “Kuatun (2300m) 27,40 n.Br. 117,40 ö.L. 30.3. 1938 (Fukien)” ( ZMHB) .

Additional material examined. China: 1 ex. (♂) “ Szetschwan Tschengfu Exp. Stötzner / Collectio Coleopterorum Johan Albert Hultgren” ( MZLU) , 1 ex. (♂) “ China Bejing 2.7.1992 O. Biström leg.” ( MZHF) , 2 ex. “ C. China 33°35’N, 107°43’E, Shaanxi prov. Mt. Taibei Shan 1300-1500 m 20.8.- 4.9.1998 leg. Murzin & Sinajev ” ( CP) , 23 ex. “ China-Shanxi Taiyuan 1.-12.VII.1990 leg. Jiri Moravec ” ( CP) , 3 ex. “ China-Shanxi Taiyuan 2-3.VII.1990 leg. Jiri Moravec ” ( CP) , 66 ex. “China-Shaanxi, S Taibashan Tsinling Mts., Houzhenzi vil., 33°53’N 107°49’E 15.viii.- 15.x. Local collector leg.; 1999; 1600m ” ( CP) , 2 ex. “ China , 29.6.- 20.7.1990 Beijing city, Haidan part J. Kalab leg.” ( CP) , 22 ex. “ China, Shaanxi, Taibashan Range, 1900m, Houzhenzi vill. Env. , 1-12.viii.1999 33°53’N 107°49’E, V. Siniaev & A. Plutenko lgt.” ( CP) , 4 ex. “ China-Shaanxi Lüeang 22.5.- 25.5.2000 leg. E. Kucera ” ( CP) , 1 ♂ “S. Korea V.1990 Jangsungpo K. Zahradka lgt.” ( ZFMK) , 1 ♂ “ China-Shaanxi prov. Hua Shan 28.7.1990 R. Dunda lgt.” ( ZFMK) , 9 ex. “ China Beijing city Haidian 29-30.6. M. Nikodym lgt. 1990” ( ZFMK) , 3 ex. “ Baimianshan Yanling , F-Henugu, 1.X.2003, Leg. Li et al. ” ( ZFMK) , 4 ex. “ China: Inner Mongolia Mt. Daquangdingzishan (2061m) Chifeng 2-12.vii.2009 local coll. Ankauf via Li Jingke 2010” ( ZFMK) , 3 ex. “Szechwan China DC Graham 1700ft. Jul. 12-14/ Chengtu 1933” ( USNM) , 2 ex. “Szechwan China DC Graham VI-1-20 alt. 1700ft. / Chengtu 1933” ( USNM) , 1 ex. “ Mt. Omei & vicinity Szechuen China ‘22 Graham” ( USNM) , 2 ex. “ Tientsin China / June 1928 / Rec’d from H.T. Feng” ( USNM) , 1 ♂, 1 ♀ “ Guangdong, 9.VII.1965 ” ( IZAS) , 1 ♂ “ San’gang, Xingcun, Chong’an , Fujian, 2.VIII. 1960, 740m, leg. Zhang Yiran ” ( IZAS) , 1 ♂ “ Mts. Badaling , Beijing, 28.VI. 1962, 700m” ( IZAS) , 1 ♂ “ J. Klapperich Schanghai Kiangsu 16.7.38” ( NMPC) , 1 ♂ “ Tschekiang ” ( ZMHB) , 1 ♂ “ Kansu Tu-kiang ” ( ZMHB) , 1 ♂ “ China: An’hui , Yuexi County, Yaoluoping N.R., nr. Resort 30°59’05’’N, 116°04’41’’E light trap, alt. 1050 m 16.vi.2013, Dai & Peng leg.” ( SNUC) , 1 ♂, 1 ♀ “ China: Hunan; Mupu Mt. 1600M, Pingjiang VIII-2003, leg. Li et al. ” ( ZFMK) , 1 ♂ “X-AD3572/ X-AD3572 China , Sichuan prov., W of Heishu, 2500m, 32.0465N, 103.0168E, 3.-10.VI.2012, leg. M. Murzin ” ( ZFMK) . Russia: 1 ♂ “USSR Primorsky kraj Arsen’ev env. VII.1990 Layoshka 19.-29. B. Siska leg.” ( CP) , 3 ex. “Russia, Far East S. Primorskoje reg. Kavalerovo v. 25.-27-vii.1996” ( ZFMK) . Mongolia: 1 ♂ “ Mongolia, Cojbalsan simak, Chapaardavaa ul. 80 km SO von Somon Chalchingol, 600 m Exp. Dr. Z. Kaszab, 1965” ( ZFMK) . S. Korea: 1 ♂ “ S.Korea V.1990 Jangsungpo K. Zahradka lgt.” ( ZFMK) ,

Redescription. Length: 7.9 mm, length of elytra: 6.0 mm, width: 4.6 mm. Body oblong-oval, reddish brown, antenna yellowish, surface dull, labroclypeus shiny, except a few short setae on sides of elytra, glabrous.

Labroclypeus wide and subtrapezoidal, widest at base, lateral margins nearly straight and convergent anteriorly, anterior angles strongly rounded, anterior margin weakly emarginate medially; margins moderately reflexed; lateral margin and ocular canthus produce an indistinct angle; surface flat, with an indistinct longitudinal elevation behind anterior margin, finely, densely punctate, with a few erect setae; frontoclypeal suture distinctly incised, angled medially; smooth area anterior to eye convex, twice as wide as long; ocular canthus short and narrow (1/3 of ocular diameter), finely densely punctate, with 1-2 long terminal setae. Frons dull, with moderately dense, fine punctures, with a few single setae beside eyes. Eyes small, ratio diameter/ interocular width: 0.58. Antenna with ten antennomeres; club with three antennomeres and straight, as long as remaining antennomeres combined. Mentum elevated and slightly flattened anteriorly.

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

Elytra widest at posterior third, striae finely impressed, finely and densely punctate, intervals slightly convex, with fine, moderately dense punctures being except on second interval partly concentrated along striae, with minute setae in punctures and penultimate interval with a few short setae, otherwise glabrous; epipleural margin robust, ending at nearly blunt external apical angle of elytra, epipleura sparsely setose; apical border of elytra membraneous, with a fine rim of microtrichomes (visible at ca 100x magnification).

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

Legs short and wide; femora dull, with two longitudinal rows of setae, finely and sparsely punctate. Anterior margin of metafemur acute, without adjacent serrated line, anterior row of setae completely reduced; posterior ventral margin smooth, moderately widened at ventral apex, dorsal posterior margin smooth, neither serrate, glabrous. Metatibia short and wide, widest at middle, ratio of width/length: 1/2.66, sharply carinate dorsally, with two groups of spines, basal group at middle, apical group at three quarters of metatibial length, in basal half with a few short single spines close to dorsal margin; lateral face longitudinally convex, nearly entirely impunctate, only a few fine punctures beside dorsal and ventral margin, glabrous; ventral margin finely serrate, with four equidistant robust setae; medial face smooth and glabrous; apex finely serrate, shallowly emarginate interiorly near tarsal articulation. Tarsomeres dorsally impunctate, glabrous, neither laterally nor dorsally carinate, moderately setose ventrally; metatarsomeres with a strongly serrated ridge ventrally and a smooth subventral longitudinal carina; first metatarsomere little shorter than following two tarsomeres combined and as long as dorsal tibial spur. Protibia moderately long, bidentate; anterior claws symmetrical, basal tooth of both claws bluntly truncate at apex.

Aedeagus: Fig. 14 K–N. Habitus: Fig. 14O .

Distribution. See map ( Fig. 94 ) and Table 1.

Figures

FIGURE 14. A–E: Maladera perniciosa (Brenske, 1898) (Vietnam: Lao Cai: Sa Pa); F–J: M. sontica (Brenske, 1898) (Laos: Louangnamtha: Namtha); K–O: M. verticalis (Fairmaire, 1888b) (China: Shaanxi: Houzhenzi). A, F, K: aedeagus, left side lateral view; D, I, N: aedeagus, right side lateral view; B, G, L: aedeagus, dorsal view; C, H, M: left parameres, ventral view; E, J, O: habitus. Scale: 0.5 mm. Habitus not to scale.

FIGURE 94. Distribution of the subgenus Omaladera: Maladera sontica (Brenske, 1898), M. verticalis (Fairmaire, 1888), M. weni sp. n., M. wuliangshanensis sp. n., M. xingkei sp. n., M. yibini sp. n..