Anomala parastasioides, Zorn, 2007

Zorn, Carsten, 2007, Three new species of the genus Anomala S, 1819 from Borneo of the fulvofusca-species group (Coleoptera: Scarabaeidae: Rutelinae), Beiträge Zur Entomologie = Contributions to Entomology 57 (2), pp. 277-283 : 278

Anomala parastasioides sp. n. ( Fig. 1 )

Holotype.  “ SABAH: Tawai Plat. 1300ft, 8m. S. Telupid 8.ix.1977 | At light | M. E. Bacchus B.M. 1978-48 | HOLOTYPUS Anomala parastasioides sp. n. det. Zorn, 2007” ( BMNH).

Description:

Body shape. Length: 10.3 mm, width: 6.0 mm; oval, stout, and convex. Color. Head dark reddish; pronotum, scutellum and elytra yellowish brown with two separated longitudinal black discal patches on the pronotum, the latter not reaching the anterior or posterior margin; elytral pattern as follows: humeral protuberance and the complete anterior margin black; a broad black longitudinal patch along the suture which is dilated before but not reaching the apex; sutural margin itself narrowly reddish; propygidium and a transverse triangular patch at the base of the pygidium dark reddish to black; remaining part of the pygidium yellowish brown; underside including antennae and femora yellowish brown; metasternum somewhat blackened; tibiae and tarsi dark reddish brown; abdominal sternites black with a reddish distal margin. Head. Clypeus subrectangular, strongly reflexed; anterior angles broadly rounded; surface with fine punctures densely covered; frons with larger, somewhat umbilicate punctures; punctures smaller and less dense towards vertex. Pronotum. Width 1.61 times length, broadest somewhat behind the middle; sides evenly curved and strongly convergent towards the acute anterior angles; posterior angles broadly rounded; basal stria not interrupted; punctures moderately fine and rather sparse on the disc, gradually larger and more dense towards the lateral margins. Elytra. With deeply impressed, coarse and somewhat umbilicate punctures arranged in regular striae mixed with sparse micropunctation; primary costae not elevated; subsutural, second and third interstice (the intervals between primary costae) with one secondary row of punctures, the one of the subsutural interstice irregularly duplicated behind the scutellum; the three inner primary striae weakly sulcate at the apex; humeral protuberance prominent and smooth. Pygidium. Convex in profile; punctures umbilicate and deeply impressed, moderately fine at the base, gradually coarser and denser towards the hind margin. Metasternum. Disc smooth and shining, weakly sulcate; lateral parts gradually more densely and coarsely punctured, with rather short and not dense yellowish setae. Abdominal sternites. Densely punctured with some irregular smooth areas; punctures moderately coarse, sometimes transversely confluent; with a transverse series of yellowish semierect setae; distal margin of the last sternite deeply emarginate. Protibia. Bidentate, lateral and terminal teeth rather short and blunt, but apparently somewhat worn out; terminal articulated spine very short, about 1.5 times as long as wide. Metatibia. Moderately slender, 3.1 times as long as wide, slightly fusiform. Claws. External middle claw and internal fore claw cleft; the latter with a very small spine-shaped upper branch; lower branch much broader and longer, with an obtuse angle at its inner margin and excised before the strongly pointed apex (Fig. 14). Aedeagus. See figs 4, 5.

Diagnosis:

Anomala parastasioidesparastasioides sp. n. is easily distinguishable from its relatives, A. fulvofusca , A. matangensis , A. pumilispumilis and A. pumiloides , by the remarkable coloration pattern with distinct black patches on pronotum and elytra and the different structure of the aedeagus with hirsute parameres. Moreover, A. parastasioidesparastasioides sp. n. is distinctly bigger than the other species.

Etymology: The species name is referring to the superficial resemblance of A. parastasioides to some small species of the Ruteline genus Parastasia WESTWOOD, 1842 .

Figures

Fig. 1: Anomala parastasioidesparastasioides (holotype). - Fig. 2: Anomala matangensis (holotype). - Fig. 3: Anomala pumiloides (holotype).