Glenopopillia maculata 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 : 309-311

Glenopopillia maculata Lin, 1980

( Figs 3B,H ; 4B,H,N ; 5B,H,N ; 8 A–J)

Glenopopillia maculata Lin,1980:75 , 77, Figs 1–2 (original description).

Glenopopillia maculata: ZORN (2006) : 272 (catalogue); KRAJČÍK (2007): 72 (catalogue); KRAJČÍK (2012): 113 (catalogue); ZORN & BEZDĚK (2016): 350 (catalogue).

Type locality. ‘ Guangxi, Pingxiang, Daqingshan’.

Type material studied (1 spec.). HOLOTYPE: ♂ ( GIABR):‘ ťı ± 4m [= Guangxi, Mt. Daqing Shan] | 1974.5.26 ~31 | ffl 罗ήι †×ṣ [= leg. Lin Ping, Luo Yuliang & Li Yaoquan] || HOLOTYPE [red] [p] || Glenopopillia | maculata sp. nov. [hw] | ※+à [p] ffl 1978 [hw] [= det. Lin Ping 1978] || 477 [p]’ ( Fig. 8I ).

Additional material studied (4 spec.). CHINA: GUANGXI ZHUANG A. R.: 1 ♂ ( CCPC), Jiuwanshan Mts, Huanjiang County, Hechi City, Guangxi, China, 1100 m, 1.vi.2015, Y.-Q. Lu lgt.; 1 ♂ ( CCPC), Jiuwanshan Mts, Huanjiang County, Hechi City, Guangxi, China, 1100 m, 29.v.2015, Y.Q. Lu lgt. VIETNAM: BẮC GIANG PROVINCE: 1 ♂ ( CZPC) ( Figs 3B,H ; 4B,H,N ; 5B,H,N ), Tay Yen Tu Nat. Res., Thanh So’n, 21°12.812Nʹ 106°45.846Eʹ, 86 m, 18.v–21.v.2015, A. Skale lgt.; 1♀ ( CZPC), Tay Yen Tu Nat. Res., Van Danh (bei Dong Ri), 21°09.96Nʹ, 106°49.56ʹE, 415 m, 20.v.2015, A. Weigel lgt.

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 including all margins, epipleura and suture blackish-brown with weak metallic sheen; with following maculae: a large oblique reniform yellow spot between humerus and first costal interval extending posteriorly but not reaching middle of elytron, one small elongate yellow spot in anterior part of costal interval 5, two small approximated yellow spots slightly posteriorly of middle: one elongate in costal interval 3, second transverse, spanning costal interval 4 to 5, and a subquadrate yellow spot in apical 4/5 spanning costal interval 1 to 2.

Head. Clypeus subsemicircular, disc very densely, partly transversely confluently punctate, anterior corners widely rounded; anterior margin weakly reflexed; frons shallowly impressed, laterally punctate like clypeus, punctures separate at middle; vertex sparsely punctate; ratio of interocular width/width of head approximately 0.65; antennal club longer than antennomeres 2–6 combined.

Pronotum approximately 1.5 times wider than long, with two deep, oblique impressions on each side (posterior impression larger than anterior) and a shallow 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 slightly sinuate in anterior third; basal marginal line interrupted in middle between level of elytral costal interval 2 on each side; all other marginal lines complete.

Scutellum nearly semicircular, broader than long, moderately fine and sparsely punctate.

Elytra regularly striate; three inner costal intervals (1, 2 and 3) slightly more convex than interstices; strial punctures distinct; subsutural interstice with secondary stria being irregularly doubled anteriorly and almost reaching posterior elytral margin; distinct but discontinuous secondary striae distinct on interstices 2 and 3; elytral surface with sparse micropunctation; humeral umbone and apical protuberance prominent; opaque area at apical curvature narrow; 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); two or three additional large spiniform setae present near apico-sutural angle.

Propygidium with dense fringe of white setae along posterior margin covering approximately 1/2 of propygidial length in middle and 1/3 of length at sides. Pygidium strongly convex; apex broadly rounded; punctation transverse on disc, transforming into concentrically arranged dense striolation at sides and base; with two large spots of white setae near base; 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 subcircular; 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 1–3 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, broadened, approximately 3.6 times longer than wide; proximal tooth short, situated close to the rather short, weakly curved apical tooth; inner spur short, articulated at level of proximal tooth. Metatibia strongly fusiform; protarsus slender; protarsomere 5 (without claws) slightly longer than tarsomeres 1–4 combined; inner protarsal claw approximately 3/4 as long as protarsomere 5, slightly widened and deeply incised apically, upper branch spiniform, lower branch broad, obliquely truncated; outer mesotarsal claw approximately as long as combined length of mesotarsomeres 1–4, 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 5B,H,N and 8 F–H.

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 10.2–11.4 mm (HT 10.2 mm), total body width 5.7–6.3 mm (HT 5.7 mm).

Morphological variation. Elytral yellow spots vary slightly in shape and size. Number of elytral spiniform setae near apico-sutural angle varies between one and three. Shape of parameres very constant.

Differential diagnosis. Glenopopillia maculata is most similar to G. nagaii and G. forceps sp. nov. with which it shares the same elytral color pattern. It differs from G. forceps sp. nov. in having a distinctly broader protibia in males, the secondary stria on interstice 2 reaching the posterior quarter of elytra, and in having the yellow lateral spot of the elytron not divided. Glenopopillia maculata differs from G. nagaii in the punctation of the pronotum which is more distinct between the lateral impressions. The parameres of G. maculata are more or less symmetric (asymmetric in G. forceps sp. nov.), and the terminal and subapical lateral tooth of the parameres are more stout compared to G. nagaii ( Figs 8 F–H).

Distribution. China (Guangxi Zhuang Autonomous Region) ( LIN 1980). First country record from Vietnam (Bắc Giang Province).

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.

Fig. 1. Glenopopillia rufipennis rufipennis Lin, 1980, left elytron. 1–6 – numbered costal intervals, I–V – numbered interstices.

Fig. 2. Glenopopillia albopilosa sp. nov., holotype. A–C – habitus: A – dorsal view, B – ventral view, C – right lateral view; D – propygidium and pygidium; E – head and pronotum; F–H – aedeagus: F – dorsal view, G – ventral view, H – right lateral view; I – lateral margin of elytra. Sc. 1: scale for A–C = 5 mm; Sc. 2: scale for F–H = 1 mm.