Anomalophylla plagipennis, Ahrens, 2005

Ahrens, Dirk, 2005, Taxonomic revision of the genus Anomalophylla Reitter, 1887 (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 1076 (1), pp. 1-62 : 59-61

Anomalophylla plagipennis sp. n.

( Fig. 4Q–S , 8 )

Type material. Holotype: ♂ ” China; Yunnan; 1995; Habashan mts. ; 2500–3800 m 27°20’N 100°11’E; 3.–6.vi.; SE Slope; S. Be č va ř leg.” ( MMBC via TICB) . Paratypes: 3 ♀♀ ­ same data as holotype ( TICB, CA) , 1 ♂ ” CHINA VI, 1990 Lijiang leg. Bocák ” ( CA) , 2 ♂♂ ” China : N. Yunnan 30 km N of Lijiang 3000 m, 3.VII.1990 L. & M. Bocák lgt.” ( NHMB) .

Holotype description. Length: 4.8 mm, length of elytra: 2.9 mm, width: 2.6 mm. Body oblong, black; legs and elytra reddish brown, the latter with apical half, sutural and lateral intervals black; dorsal surface dull; head and pronotum with long, dense, erect setae; pilosity on elytra moderately dense; pilosity yellowish brown. Head: Labroclypeus transverse, widest medially with lateral margins strongly convex, convergent anteriorly and toward base; anterior angles strongly rounded; lateral border and ocular canthus producing distinct blunt angle; anterior and lateral margin strongly reflexed; anterior margin moderately sinuate medially; surface almost flat medially, moderately shiny with double punctation; fine, glabrous punctures mixed with coarse, dense punctures each bearing a long, erect seta. Frontoclypeal suture distinct; weakly curved, slightly elevated; smooth area anterior to eye as wide as long. Ocular canthus moderately long and slender; finely, densely punctate; densely setose. Frons with double punctation; fine glabrous mixed with coarse, dense punctures each bearing a long, erect seta; punctation less dense, glabrous basally. Eyes small, ratio of diameter / interocular width: 0.47. Antenna with ten antennomeres, yellowish brown; club brown, with five equal in length antennomeres; club 2.5 times as long as remaining antennomeres combined, reflexed. Prementum weakly elevated, transversely carinate. Pronotum: widest at base; lateral margins in basal half almost straight and subparallel, in apical third strongly convex and convergent; anterior angles not produced and moderately rounded; posterior angles blunt, weakly rounded; anterior margin medially weakly convex with distinct, fine marginal line; basal margin with fine marginal line. Pronotal surface with dense, double punctation; fine, glabrous punctures mixed with large punctures bearing a long erect seta; pilosity moderately dense. Anterior and lateral borders setose; basal margin of hypomeron not produced ventrally, not transversely sulcate anterior to base. Scutellum : moderately long; apex sharp; with fine, dense punctures; minute setae present in punctures. Elytra: oblong, widest medially; striae indistinctly impressed, finely densely punctate; intervals flat, with fine, moderately dense punctures; punctures on odd intervals with long, erect setae, which are anteriorly longer and denser; sutural interval with robust, long, single seta. Epipleural edge fine, ending at strongly convex external apical angle of elytra; epipleura densely setose, strongly curved in anterior third of elytra; apical border chitinous, without short microtrichomes. Venter: Ventral surface dull with fine, dense punctures. Metasternum with dense, long setae, setae partially appressed, partially erect. Metacoxa almost glabrous; laterally with moderately dense, fine, long appressed setae. Abdominal sternites with indistinct transverse row of coarse punctures bearing thick setae between fine, dense punctation; all abdominal sternites with fine, long setae; tegument of abdominal sternites (60x magnification) with fine polygonal mesh pattern formed by microtrichomes; penultimate sternite at midline with longitudinally impressed line. Mesosternum between mesocoxae narrow, narrower than mesofemur, with irregularly scattered, strong setae. Ratio of length of metepisternum/ metacoxa: 1/1.67. Pygidium moderately convex, posteriorly shiny; with fine, dense punctures bearing fine, long setae; pilosity denser along apical margin; without smooth midline. Legs: slender with shiny surface. Femora with two longitudinal rows of setae; rows finely, densely punctate and setose; anterior edge of metafemur acute, lacking adjacent serrated line; posterior margin weakly convex with a few fine setae medially; ventral posterior margin weakly widened in apical half, posterior margin smooth ventrally and dorsally. Metatibia moderately slender, long, widest at apex; ratio width/length: 1/3.5; dorsal margin sharply carinate, smooth; with two groups of spines, basal group at one third, apical one at two thirds of metatibial length, basally with a few single spines in punctures; lateral face longitudinally convex with dense, fine punctures; ventral edge serrated, with four strong, long, equally spaced spines; medial face finely punctate, apex sharply truncate interiorly near tarsal articulation. Tarsomeres dorsally glabrous, coarsely punctate; ventrally with sparse, short setae; metatarsomeres dorsally without longitudinal impressions, ventrally with strongly serrated ridge adjacent to strong longitudinal carina, laterally without strong longitudinal carina; first metatarsomere slightly shorter than the following two tarsomeres combined, slightly longer than upper tibial spur. Protibia short, bidentate. Protarsal claws asymmetrical; basal tooth of inner protarsal claw widened, truncate apically. Aedeagus: Fig. 4Q S .

Intraspecific variation. Length: 4.8 mm, length of elytra: 2.9 mm, width: 2.6 mm. Coloration variable, one paratype legs completely black, extension of dark portion of the reddish brown elytra half of elytral length or less. Density of punctation on dorsal surface variable. ♀: antennal club with three antennomeres and distinctly shorter than the remaining antennomeres combined; eyes equal in size to that of male.

Diagnosis. Anomalophylla plagipennis strongly resembles A. dongchuanensis . It differs by the left paramere, which is medially tooth­like, widened, and distinctly sinuate basal to the widest section. The lateral apophysis of phallobase is in A. plagipennis narrower and more sharply pointed at apex.

Etymology. From the combined Latin words plaga (stain) and penna (wing).

Figures

FIGURE 4. (A–C) Anomalophylla wulingshanica sp. n. (holotype); (D–F) A. ganhaiziensis sp. n. (holotype); (G–J) A. dongchuanensis sp. n. (holotype); (K–M) A. qinlingensis sp. n. (holotype); (N–P) A. moxiensis sp. n. (holotype); (Q–S) A. plagipennis sp. n. (holotype). (A, D, G, K, N, Q) aedeagus, left side lateral view; (B, E, H, L, O, R) parameres, dorsal view; (C, F, J, M, P, S) aedeagus, right side lateral view. Scale bar = 0.5 mm.

FIGURE 8. Present known distribution of Anomalophylla bicolor, A. dongchuanensis, A. ganhaiziensis, A. huashanica, A. kangdingensis, A. kozlovi, A. mawi, A. moxiensis, A. plagipennis, A. qinlingensis, and A. wulingshanica.