Anomalophylla mawi ( Arrow, 1946 ) Ahrens, 2005

Ahrens, Dirk, 2005, Taxonomic revision of the genus Anomalophylla Reitter, 1887 (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 1076 (1), pp. 1-62 : 45-47

Anomalophylla mawi ( Arrow, 1946) new combination

( Fig. 3Q–S , 8 )

Microserica mawi Arrow, 1946: 274 .

Type material. Syntypes: 2 ♂♂, 2 ♀♀ ”W. China Chung­king Sze­chuen Prov. W. A. Maw. 1912–11.” ( BMNH) .

Redescription. Length: 5.2 mm, length of elytra: 3.5 mm, width: 3.0 mm. Body oval; legs black, elytra and legs reddish brown; dorsal surface dull; head with a few erect setae, elytra almost glabrous; pilosity yellow on head, pronotum, elytra. Head: Labroclypeus transverse, widest medially with lateral margins moderately convex, convergent anteriorly and toward base; anterior angles strongly rounded; lateral border and ocular canthus producing distinct blunt angle; anterior and lateral margin weakly reflexed; anterior margin shallowly sinuate medially; surface 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 distinct impressed, weakly curved; smooth area anterior to eye as wide as long. Ocular canthus moderately long, slender; with fine, sparse punctures; sparsely setose. Frons finely punctate, almost glabrous with a few long, erect seta behind frontoclypeal suture. Eyes small, ratio of diameter / interocular width: 0.47. Antenna with ten antennomeres, brown; club with five equal in length antennomeres; club slightly longer than remaining antennomeres combined, reflexed. Prementum weakly elevated, transversely carinate; distinctly concave apically to elevation. Pronotum: widest adjacent to base; lateral margins evenly convex, convergent anteriorly; anterior angles not produced, strongly rounded; posterior angles moderately rounded; anterior margin medially weakly convex with distinct, fine marginal line; basal margin without marginal line. Pronotal surface with dense, fine punctation; with a few erect seta laterally. Anterior and lateral borders sparsely setose; basal margin of hypomeron not produced ventrally, not transversely sulcate anterior to base. Scutellum : moderately long; apex moderately sharp; with fine, sparse punctures; minute setae present in punctures. Elytra: oval, widest medially; striae distinctly impressed, finely densely punctate; intervals distinctly convex with a few fine punctures along striae, punctures on odd intervals with a few fine appressed setae, with robust setae on sutural interval. Epipleural edge fine, ending at strongly convex external apical angle of elytra; epipleura sparsely 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, short setae; setae partially appressed, partially erect. Metacoxa glabrous, laterally with numerous fine, long, appressed setae. Abdominal sternites with indistinct, transverse row of coarse punctures bearing thick setae between fine, dense punctation; all sternites with fine or minute setae; tegument of abdominal sternites (60x magnification) with fine polygonal mesh pattern formed by microtrichomes; penultimate sternite (♂) on midline with longitudinally impressed line. Mesosternum between mesocoxae narrow, narrower than mesofemur; with irregularly scattered, strong setae. Ratio of length of metepisternum / metacoxa: 1 / 1.76. Pygidium strongly convex; posteriorly shiny; with fine, dense punctures beside apical margin; setae fine, moderately long; without smooth midline. Legs: slender, shiny. Femora with two longitudinal rows of setae; 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, short, widest at apex; ratio width / length: 1 / 3.1; dorsally sharply margined; dorsal edge 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 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 with strong longitudinal carina; first metatarsomere slightly shorter than following two tarsomeres combined, one quarter of length longer than upper tibial spur. Protibia short, bidentate. Protarsal claws asymmetrical, basal tooth of inner protarsal claw widened, truncate apically. Aedeagus: Fig. 3Q–S .

Intraspecific variation. Length: 5.2–5.7 mm, length of elytra: 3.5–4.0 mm, width: 3.0– 3.2 mm. Coloration varies from entirely reddish brown (♀) to dark brown. ♀: antennal club with three antennomeres and distinctly shorter than the remaining antennomeres combined; eyes equal in size to that of male.

Diagnosis. Anomalophylla mawi differs from all Anomalophylla species that have a serrated dorsal edge of metatibia by the metatarsomeres laterally with a distinct lateral carina, by the right paramere at least in basal half without a sharp lateral carina ( Fig. 3S ), and by the basal lobe of right paramere not widened distally ( Fig. 3R ).

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.