Serica solivaga Brenske, 1898

Ahrens, Dirk, Fabrizi, Silvia, Bai, Ming & Liu, Wangang, 2022, Taxonomic revision of Serica MacLeay, 1819 (sensu lato) from China and adjacent areas (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), with updates on Nipponoserica Nomura, 1972, Zootaxa 5186 (1), pp. 1-83 : 23-24

Serica solivaga Brenske, 1898

Figures 4E–H , 21

Serica (Ophthalmoserica) solivaga Brenske, 1898: 323 ; Arrow 1946: 6.

Ophthalmoserica solivaga: Dalla Torre 1912: 16 .

Type material examined. Holotype: ♂ “ Hte Birmanie Mines des Rubies 1200m 2300m Doherty 1890/ Ophthalmoserica solivaga type Brsk./ Museum Paris ex. Coll. R. Oberthür / Type” ( MNHN).

Additional material examined. Myanmar: 1 ♂ “N.E. Burma Kambaiti, 7000 ft. 19/4. 1934 R. Malaise/ 3296 E91” ( NHRS) , 1 ♂ “N.E. Burma Kambaiti, 2000 m 28/5. 1934 R. Malaise/ 3299 E91” ( NHRS) , 1 ♂ “N.E. Burma Kambaiti, 7000 ft. 12/5. 1934 R. Malaise/ Serica solivaga Determined from description G.J.A/ 3169 E91” ( NHRS) , 2 ex. “N. E. Burma Kambaiti 7000 ft. 8/4.1934/ N. E. Burma R. Malaise B. M. 1945-71” ( BMNH) , 2 ex. “N. E. Burma Kambaiti 7000 ft. 18/4.1934/ N. E. Burma R. Malaise B. M. 1945-71” ( BMNH) , 1 ex. “N. E. Burma Kambaiti 7000 ft. 3-7/5.1934/ N. E. Burma R. Malaise B. M. 1945-71” ( BMNH) , 1 ex. “N. E. Burma Kambaiti 7000 ft. 28/5.1934/ N. E. Burma R. Malaise B. M. 1945-71” ( BMNH) , 1 ex. “N. E. Burma Kambaiti 7000 ft. 13/5.1934/ N. E. Burma R. Malaise B. M. 1945-71” ( BMNH) , 18 ex. “ Myanmar (Burma) Provinz Kanchin State, Ca. 20 km N von Panwar, 23.05.2006, 2180m, N25°43’30.2’’ E098°23’35.3’’, Nachtfang, leg. M. Langer, S. Naumann & S. Löffler Coll. Michael Langer ” ( ZFMK), 1 ♂ “ Myanmar: Danasho 2800 m, Minshia vi-2004 leg. Yin et al.” ( ZFMK). China: 4 ♂♂ “ China Yunnan prov. Gaologongshan mts. 90 km W of Baoshan S. Becvar leg. 26-29.v.1995 ” ( CP), 3 ex. “ China: E-Yunnan; Damaidi 2500 m, Guangnan near Vietnam VII-2003 leg. Li et al.” ( ZFMK), 2 ex. “ China, W Yunnan prov., mts. 60 Km E Tengchong, 2300m, 14.-19.v.2006 S. Murzin & I. Shokin leg.” ( CP) , 1 ♂ “ Yunnan 2200-2500m 24.57N 98.45E 8.-16/5 Gaoligong mts. Vit Kuban leg. 1995” ( CP) , 1 ♂ “ Hetouzhai, Jinping , Yunnan, 12.V.1956, 1600-1700m, leg. Huang Keren etc.” ( IZAS), 1 ♂ “Hetouzhai, Jinping, Yunnan, 14.V.1956, 1700m, light trap, leg. Huang Keren ” ( IZAS), 2 ♂♂ “Jinping, Yunnan, 18.V.2006, 2000m, leg. Cui Jianxin ” ( CAU), 1 ♂ “Yingjiang, Yunnan, 13,14. IV.1980, 1700m, leg. Gao Ping ” ( IZAS), 3 ♂♂ “Yingjiang, Yunnan, 15.IV.1980, 1700m, leg. Gao Ping ” ( IZAS), 3 ♂♂ “Hetouzhai, Jinping, Yunnan, 9, 14.V.1956, 1700m, light trap, leg. Huang Keren etc.” ( IZAS), 1 ♂ “ Jinping, Yunnan, 18.V.2006, 2000m, leg. Cui Jianxin ” ( CAU) .

Redescription of the holotype. Length: 8.5 mm, elytral length: 5.5 mm, width: 4.5 mm. Body oblong, dark brown, dull, legs brown, antenna yellow, dorsal surface almost glabrous.

Labroclypeus narrow, subtrapezoidal, lateral margins straight and moderately convergent, producing a distinct angle with ocular canthus; anterior angles strongly rounded; anterior margin weakly sinuate medially, margins strongly reflexed; surface moderately shiny, flat, finely and densely punctate, with a few erect setae; frontoclypeal suture indistinct, curved and slightly elevated; ocular canthus moderately long and narrow (1/3 of ocular width), impunctate, with a short terminal seta. Frons with fine, moderately dense punctures, with a few long setae besides eyes. Antenna with 10 antennomeres, club with three antennomeres, strongly reflexed, 2.2 times as long as remaining antennomeres combined. Eyes large, ratio diameter/ interocular width: 0.88. Mentum convexly elevated and flattened anteriorly.

Pronotum widest at base, lateral margins evenly moderately convex and convergent anteriorly; anterior angles blunt and moderately produced; posterior angles blunt; anterior margin strongly convex, marginal line complete; basal margin without marginal line; surface finely and moderately densely punctate, with minute seta in punctures. Hypomeron indistinctly carinate and not produced ventrally. Scutellum wide, triangular, sparsely punctate, with minute setae in punctures.

Elytra narrow, widest in posterior third, striae distinctly impressed, finely punctate; intervals weakly convex, finely and densely punctate, punctures concentrated along striae; intervals almost glabrous apart from minute setae in punctures, odd intervals with a few single short setae; epipleural margin robust, ending at strongly rounded external apical angle of elytra, densely setose; apex of elytra with a fine membraneous rim of short microtrichomes.

Ventral face dull, coarsely and densely punctate, only metasternal plate and lateral metacoxa with a few long or robust setae. Mesosternum between mesocoxae as wide as mesofemur. Ratio of length of metepisternum/ metacoxa: 1/ 1.4. Abdominal sternites finely and moderately densely punctate, each with a row of coarse punctures bearing each a robust seta, otherwise glabrous. Pygidium moderately convex, coarsely and densely punctate, almost glabrous.

Legs long and narrow, shiny; femora finely and sparsely punctate, with two longitudinal rows of setae. Metafemur iridescent, with anterior margin acute, without adjacent serrated line; posterior ventral margin almost straight, weakly widened in apical half, ventrally and dorsally not serrated, sparsely setose. Metatibia long and narrow, ratio width/ length: 1/ 4.2, sharply carinate dorsally, with two groups of spines, basal one shortly before middle, apical one at almost four fifths of metatibial length, basally with a few fine and short setae; lateral face longitudinally convex, finely and sparsely punctate, glabrous; apex interiorly sharply truncate (in an angle of ca. 45° to tibial axis) near tarsal articulation. Tarsomeres impunctate dorsally, with moderately dense, fine setae ventrally; metatarsomeres ventrally with a strongly serrated carina, subventrally with a second, smooth longitudinal carina; first metatarsomere distinctly shorter than following two tarsomeres combined and one third of its length longer than dorsal tibial spur. Protibia moderately long, bidentate; anterior claws symmetric, interior tarsal claws bluntly truncate.

Aedeagus: Fig. 4E–G . Habitus: 4H.

Remarks. The record of S. solivaga from “northern Manchuria” of Sawada (1939) refers to Serica rosinae Pic, 1904 .

Figures

FIGURE 4. A–D: Serica adspersa Frey, 1972 (holotype); E–H: S. solivaga (Brenske, 1898) (Myanmar, Panwar); I–L: S. mengsonana Ahrens, Fabrizi & Liu, new species (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 (not to scale). Scale: 0.5 mm.

FIGURE 21. Distribution of Serica adspersa Frey, 1972, S. daqiaoana Ahrens, Fabrizi & Liu, new species, S. dissimillima Ahrens, Fabrizi & Liu, new species, S. jiankouensis Ahrens, Fabrizi & Liu, new species, S. longwang Ahrens, Fabrizi & Liu, new species, S. mensonana Ahrens, Fabrizi & Liu, new species, S. solivaga Brenske, 1898, S. tianmushan Ahrens, Fabrizi & Liu, new species .