Glenopopillia rufipennis rufipennis Lin, 1980

Lu, Yuan Yuan, Zorn, Carsten, Král, David, Bai, Ming & Yang, Xing Ke, 2018, Taxonomic revision of the genus Glenopopillia (Coleoptera: Scarabaeidae: Rutelinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2), pp. 297-320 : 314-316

Glenopopillia rufipennis rufipennis Lin, 1980

( Figs 3D,J ; 4D,J,P ; 5D,J,P ; 8 K–R)

Glenopopillia rufipennis Lin, 1980: 76 , 78, Fig. 3 (original description).

Glenopopillia rufipennis: ZORN (2006) : 272 (catalogue), KRAJČÍK (2007): 72 (catalogue); KRAJČÍK (2012): 113 (catalogue); ZORN & BEZDĚK (2016): 351 (catalogue).

Type locality. ‘ Yunnan, Xishuangbanna, Meng’a, 1000 m a. s. l.’.

Type material studied (1 spec.). HOLOTYPE: ♂ ( IZAS) ‘ ±•ıŋvfflŧ 啊 [= Yunnan, Xishuangbanna, Meng’a] [p] | 1000 [hw] »尺 (m) | 中¤ fl$ḣ [= Chinese Academy of Sciences] [p] || 1958. V. 25 [hw] JƗà Ŧħḟ [= leg. Wang Shuyong] || HOLOTYPE [red] [p] || Glenopopillia | rufipennis sp. nov. [hw] | ※+à [p] ffl 1978 [= det. Lin Ping] [hw] || 421 [p]’ ( Fig. 8R ).

Additional material studied (51 spec.). CHINA: YUNNAN PROVINCE: 1 ♀ ( IZAS), Xishuangbanna, Meng’a, 1050–1080 m, 17.v.1958, Wang Shuyong lgt., IOZ (E) 1966477; 1 ♀ ( IZAS), Xishuangbanna, Meng’a, 1050 m, 17.v.1958, Pu Fuji lgt., IOZ (E) 1966476; 1♀ ( IZAS), Xishuangbanna, Meng’a, 1000 m, 25.v.1958,Wang Shuyong lgt., IOZ (E) 1966478; 1 ♀ ( IZAS), Xishuangbanna, Meng’a, 1000 m, 16.v.1958, Pu Fuji lgt., IOZ (E) 1966479. LAOS: HOUAPHANH PROVINCE: 2 ♂♂ ( NMPC), Ban Saluei→Phou Pane Mt., 20°12– 13.5Nʹ 103°59.5– 104°01Eʹ, 1340–1870 m, 15.iv.–15.v.2008, Lao collectors lgt.; 22 ♂♂ 18 ♀♀ ( CZPC, ZFKB), Ban Saleui, Phou Pan (Mt.) - 20°12 ʹ N, 104°01 ʹ E, 11.iv.‒15.v. 2012, 1300‒1900 m, leg. C. Holzschuh ZFMK Ankauf 2012/13 ( Figs 3D,J ; 4D,J,P ; 5D,J,P ); 1♂ ( RBINS), Mt. Phu Phan, 2060 m, vi.2015, S. Collard lgt.; 1 ♂ 3 ♀♀ ( IZAS), Xam Neua, Mt. Pan, v.2012.

Redescription of holotype (♂). Body shape. Elongate ovoid, weakly convex.

Color. Ground color blackish-brown with strong green to red metallic luster; legs dark orange except for mesoand metatarsus, meso- and metafemur, and apical part of metatibia being dark brown with green metallic luster; clypeus and antenna light brown; elytra predominantly light brown with weak metallic sheen; sutural margin narrowly blackened; some vague, pale yellow spots as follows: one posteriorly of scutellum; two near middle of outer margin: inner spot in costal interval 3, outer one slightly larger than inner and spanning costal interval 4 to 5; one subquadrate spot approximately between 2/3 and 3/4 of elytral length, from costal interval 1 to 2.

Head. Clypeus subrectangular, disc very densely, transversely, confluently punctate; anterior corners rounded; anterior margin weakly reflexed; frons very shallowly impressed, punctate like clypeus, but punctures less confluent medially; vertex very sparsely and finely punctate; ratio of interocular width/width of head approximately 0.64; antennal club longer than antennomeres 2–6 combined.

Pronotum approximately 1.4 times wider than long, with two deep, oblique impressions on each side (posterior impression larger than anterior) and a deep median longitudinal furrow; with steep decline along lateral margin; disc extremely finely and sparsely punctate, punctures becoming gradually larger laterally; sparse erect setae present near anterior angles and along lateral margin; anterior angles acute and strongly produced; posterior angles obtuse; sides of pronotum weakly converging anteriad in posterior two thirds, then strongly curved, strongly converging, and slightlysinuate in anterior third; basal marginal line interrupted before scutellum between level of elytral costal interval 3 on each side; all other marginal lines complete.

Scutellum nearly semicircular, broader than long, finely and sparsely punctate.

Elytra regularly striate; three inner costal intervals (1, 2 and 3) slightly more convex than interstices; strial punctures large, distinct; subsutural interstice with secondary stria being irregularly doubled anteriorly and almost reaching posterior elytral margin; distinct but discontinuous secondary striae also present on interstice 2 and 3; elytral surface with sparse micropunctation; humeral umbone and apical protuberance very prominent; opaque area at apical curvature broad, including interstice 4 laterally; lateral margin with wide flat paramarginal extension between humerus and middle of elytra; epipleuron broad near humerus, ending slightly posteriorly of elytral midlength; epipleuron with numerous soft short white setae near humerus and stout spiniform black setae beginning posteriorly of humerus and extending along lateral margin to apical curvature (becoming gradually larger apicad); 1 or 2 large spiniform setae present near apico-sutural angle; posterior margin evenly, separately rounded.

Propygidium with dense fringe of white setae along posterior margin covering approximately 1/3 of propygidial length. Pygidium strongly convex; apex broadly rounded; punctation transverse and rather sparse on disc (except across vague midline), transforming into concentrically arranged dense striolation at sides and base; with two small spots of white setae near base and another two vague spots in a small depression at lateral margin; apex with several long, erect brownish setae.

Ventral thoracic surface densely covered with soft, long, white setae.

Meso-metaventral process short, compressed between mesocoxae, projecting slightly downward in lateral view, anteriorly vertical and straight; apex subrectangular, somewhat rounded; bulbiform in ventral view.

Abdominal ventrites with transverse band of dense, long, white setae in posterior half (broadly interrupted in middle) and irregular white setae on each side of anterior half of ventrites 2–4; ventrites 1–2 and anterior half of ventrite 3 carinate laterally.

Legs. Meso- and metafemur with two bands of long white setae, one along anterior margin, the second emerging from a transverse row of punctures parallel to posterior margin. Protibia bidentate, rather long, broadened, approximately 3.9 times longer than wide; proximal tooth short, situated close to the rather short, curved apical tooth; inner spur short, at level of proximal tooth. Metatibia fusiform; protarsus slender; protarsomere 5 (without claws) slightly longer than tarsomeres 1–4 combined; inner protarsal claw very long, slightly widened and deeply incised apically, upper branch spiniform; outer mesotarsal claw very long, curved, deeply incised at apex, upper branch spiniform; metatarsal claws very unequal, outer claw approximately twice as thick and 1/3 longer than inner.

Aedeagus as in Figs 5D,J,P and 8 O–Q.

Female. Protibia slender, apical tooth of protibia long and spatulate; protarsus articulated slightly basally of level of proximal tooth; inner spur long, articulated between 1/2 and 2/3 of tibial length; protarsus very slender, protarsomere 5 (without claws) shorter than tarsomeres 1–4 combined; modified claws of pro- and mesotarsi shorter, two apical branches more equal than in males; antennal club as long as antennomeres 2–6 combined.

Measurements. Total body length 10.7–13.3 mm (HT 10.7 mm), total body width 5.8–7.3 mm (HT 5.8 mm).

Morphological variation. Vague yellow spots on elytra vary slightly in shape and size, sometimes with an additional vague yellow spot between scutellum and humerus, occasionally the inner of the two middle spots missing, sometimes all yellow spots very indistinct. Number of elytral spiniform setae near apico-sutural angle varies between one and three. Shape of parameres very constant.

Differential diagnosis. Only two other species share the entirely light brown elytra as seen in G. rufipennis rufipennis : G. fossulata and G. skalei sp. nov. Of these, G skalei sp. nov. is easily distinguished by the partly blackened costal interval 1, the longer propygidial white setae and the wider protibia in males. Glenopopillia rufipennis rufipennis is virtually identical externally to G. fossulata , except that the setae at the abdominal ventrites form two transverse bands in G. rufipennis rufipennis ; whereas the anterior areas are nearly glabrous in the syntypes of G. fossulata . Moreover, the setation of the metafemur is more distinct. There are, however, distinct differences in the shape of the parameres, which are strongly asymmetric and subapically dentate in G. rufipennis , but strongly curved and not dentate in G. fossulata ( Figs 5D,J,P ; 8 O–Q). Both, G. rufipennis rufipennis and G. fossulata , are larger than all other species, the spiniform setae on the elytral margin are especially stout, and the series begins right posteriorly of the humeral umbone. For the separation from G. rufipennis nigropicta subsp. nov., see ‘Diagnosis’ under that subspecies.

Distribution. China (Yunnan) ( LIN 1980). First country record from Laos (Houaphanh).

Figures

Fig 5.Aedeagus of Glenopopillia. A–F – dorsal view, G–L – ventral view, M–R – right lateral view.A, G, M – G. forceps sp. nov. (HT); B, H, N – G. maculata Lin, 1980 (Vietnam, Bắc Giang Prov.); C, I, O – G. mengi sp. nov. (HT); D, J, P – G. rufipennis rufipennis Lin, 1980 (Laos, Houaphanh Prov.). E, K, Q – G. r. nigropicta subsp. nov. (HT); F, L, R – G. skalei sp. nov. (HT). Sc 1: Scale for A–R, except D, J, P = 1 mm; Sc 2: Scale for D, J, P = 1 mm.

Fig 8. Details of Glenopopillia, holotypes.A–J – G. maculata Lin, 1980, K–R – G. rufipennis rufipennis Lin, 1980.A, D, E, K–M – habitus:A, K – dorsal view, D, M – ventral view, E, L – left lateral view; B, N – propygidium and pygidium; C – head and pronotum; F–H, O–Q – aedeagus: F, O – dorsal view, G, P – ventral view, H, Q – right lateral view; I, R – label. Sc 1: Scale for A = 5 mm; Sc 2: Scale for K = 5 mm.

Fig. 3. Habitus of Glenopopillia. A–F – dorsal view, G–L – lateral view.A, G – G. forceps sp. nov. (HT); B, H – G. maculata Lin, 1980 (Vietnam, Bắc Giang Prov.), C, I – G. mengi sp. nov. (HT); D, J – G. rufipennis rufipennis Lin, 1980 (Laos, Houaphanh Prov.); E, K – G. r. nigropicta subsp. nov. (HT); F, L – G. skalei sp. nov. (HT). Scale = 5 mm.

Fig. 4. Details of Glenopopillia. A–F – habitus, ventral view; G–L – head; M–R – propygidium and pygidium.A, G, M – G. forceps sp. nov. (HT); B, H, N – G. maculata Lin, 1980 (Vietnam, Bắc Giang Prov.); C, I, O – G. mengi sp. nov. (HT); D, J, P – G. rufipennis rufipennis Lin, 1980 (Laos, Houaphanh Prov.); E, K, Q – G. r. nigropicta subsp. nov. (HT); F, L, R – G. skalei sp. nov. (HT). Not to scale.