Anomalophylla kangdingensis, Ahrens, 2005

Ahrens, Dirk, 2005, Taxonomic revision of the genus Anomalophylla Reitter, 1887 (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 1076 (1), pp. 1-62 : 44-45

Anomalophylla kangdingensis sp. n.

( Fig. 3N–P , 8 )

Type material. Holotype: ♂ “ CHINA: W­Sichuan (Ganzi Tibet Auton. Pref. Kangding Co.) Daxue Shan , river valley 15 km S Kangding, 29°56’N / 101°58’E, 2800 m 26.VI.1999 leg. D. Wrase ” ( ZSM).

Holotype description. Length: 5.8 mm, length of elytra: 3.7 mm, width: 3.0 mm. Body oblong, legs black; dorsal surface dull; head and pronotum with long, dense, yellowish brown, erect setae. Head: Labroclypeus transverse, widest at base; with lateral margins strongly convex, strongly convergent anteriorly, subparallel in basal half; anterior angles strongly rounded; lateral border and ocular canthus producing distinct blunt angle; anterior and lateral margin moderately reflexed; anterior margin shallowly sinuate medially; surface almost flat medially, moderately shiny with double punctation; coarse, dense punctures mixed with fine glabrous punctures; coarse punctures each bearing a long, erect seta. Frontoclypeal suture weakly incised, weakly curved; smooth area anterior to eye as wide as long. Ocular canthus long, slender; lateral margin concavely sinuate; finely, densely punctate with a few long setae. Frons dull; anterior two­thirds with coarse, dense punctures mixed with fine glabrous ones; punctation less dense posteriorly, predominantly fine, almost glabrous; a few punctures behind frontoclypeal suture adjacent to eyes bearing setae. Eyes small, ratio of diameter / interocular width: 0.5. Antenna with ten antennomeres, brown; club with five equal in length antennomeres; club 2.5 times as long as remaining antennomeres combined, reflexed. Prementum weakly elevated, transversely carinate; distinctly concave apical to elevation. Pronotum: widest at base; lateral margins in posterior half weakly convex, in anterior half strongly convex and convergent; anterior angles weakly produced, strongly rounded; posterior angles weakly rounded; anterior margin medially weakly convex with distinct, fine marginal line; basal margin medially without a fine marginal line. Pronotal surface with moderately dense, double punctation; fine, glabrous punctures mixed with large moderately dense punctures, each bearing a long erect seta. Anterior and lateral borders setose; basal margin of hypomeron not produced ventrally, not transversely sulcate anterior to base. Scutellum : dark and moderately wide; apex moderately sharp; with fine and sparse punctures; medially narrowly impunctate; minute setae present in punctures. Elytra: oblong, widest medially; striae weakly impressed, finely punctate; intervals weakly convex with fine punctures along striae; a few punctures on odd intervals bearing a long, appressed 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 glabrous adjacent to articulation of leg; elsewhere with 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 / 1.56. Pygidium moderately convex, dull; with fine, dense punctures; punctures bearing fine, moderately long setae; without smooth midline. Legs: slender with shiny surface. Femora with two longitudinal rows of setae; finely, densely punctate, 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 / 3.4; dorsal edge sharply carinate, finely serrate, 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 moderately dense, fine punctures; ventral edge serrated, with three strong, long, equally spaced spines; medial face impunctate; apex interiorly near tarsal articulation deeply, sharply truncate. Tarsomeres dorsally glabrous, finely punctate; ventrally with sparse, short setae; metatarsomeres dorsally without longitudinal impressions, ventrally with strongly serrated ridge adjacent to indistinct longitudinal carina, laterally with strong longitudinal carina; first metatarsomere distinctly shorter than following two tarsomeres combined, slightly longer than upper tibial spur. Protibia short, bidentate. Protarsal claws asymmetrical, basal tooth of inner protarsal claw apically widened, truncate. Aedeagus: Fig. 3N–P .

Diagnosis. The new species differs from the similar A. kozlovi by the more produced anterior angles of the pronotum as well as by the shape of parameres ( Fig. 3N–P ). The right paramere is straight and posses a slightly longer basal lobe, the left paramere is not widened medially in dorsal view.

Etymology. The new species is named according to its occurrence near to the city Kangding.

Figures

FIGURE 3. (A–C) Anomalophylla morula sp. n. (holotype); (D–F) A. vidua sp. n. (holotype); (G– J) A. kozlovi Medvedev (lectotype); (K–M) A. huashanica sp. n. (holotype); (N–P) A. kangdingensis sp. n. (holotype); (Q–S) A. mawi (Arrow) (syntype). (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.