Anthelephila abnormis, Kejval, 2017

Kejval, Zbyněk, 2017, Studies of the genus Anthelephila Hope (Coleoptera: Anthicidae) 14. Twenty-four new species from Asia and new records of A. fossicollis Kejval, Zootaxa 4306 (1), pp. 1-52 : 2-4

Anthelephila abnormis sp. nov. Figs 1–6 , 107

Description. Male (holotype). Body length 4.1 mm. Body black, with slight greenish reflection, mouthparts and lateral margins of elytra brownish; legs largely dark reddish-brown, tarsi nearly brownish-black, antennae reddishbrown.

Head 1.1 times as long as wide, evenly rounded posteriorly, clearly differentiated from short neck; tempora strongly narrowing posteriad, posterior angles absent. Eyes medium-sized, moderately convex. Dorsal surface nearly matt, distinctly punctate and finely corrugated; punctures distinctly separated. Setation short, subdecumbent; several long tactile setae. Antennae moderately enlarged in terminal third; antennomere X 1.5 times, XI 2.2 times as long as wide.

Pronotum 1.6 times as long as wide, conspicuously narrower than head including eyes, evenly rounded anteriorly, strongly narrowed and impressed (constricted) postero-laterally in dorsal view; pronotal disc strongly convex and evenly sloping towards base in lateral view. Surface glossy, at places shagreened; antero-lateral sides minutely and sparsely punctate, nearly impunctate near procoxal cavities; disc minutely punctate, with moderate median longitudinal impression in anterior half, conspicuously longitudinally corrugated and punctate dorsolaterally in posterior half, finely transversely corrugated shortly before base; postero-lateral impressions unwrinkled. Setation as on head; posterior dorso-lateral corrugation with fringe of whitish, coarse setae.

Both mesosternum and metasternum simple.

Elytra 1.5 times as long as wide, conjointly rounded apically; humeri distinct; postscutellar impression slightly indicated. Surface more or less glossy, distinctly punctate; punctation double and unevenly developed, sparse and coarse in basal half, finer and much denser in apical half. Setation diversified, setae mostly pale, longer and decumbent in basal half, shorter, appressed in apical half, short whitish setae forming two sparse, transverse bands in postscutellar impression and slightly posterior mid-length, posterior setose band widening laterally; numerous long tactile setae.

Metathoracic wings fully developed.

Fore legs modified ( Fig. 1 ); profemoral process conspicuously long and slender, rounded apically, bearing short fringe of stiff setae subapically; protibiae impressed, with prominent carina distally and small protrusion on inner side subapically; penultimate tarsomere widened/flattened distally, with terminal tarsomere articulated dorsally near base in all tarsi. Setation normally developed.

Abdominal sternum III with shallow median impression. Sternum IV with paired submedian, setose protrusions, and shallowly impressed medially (between protrusions). Sternum V conspicuously large, deeply excavate and lobed posteriorly. Sternum VI strongly reduced, shallowly emarginate. Sternum VII with sinuous posterior margin and three bunches of setae dorsally ( Fig. 2 ). Sternite VIII ( Fig. 3 ); prongs nearly simple, robust, well-sclerotized, setose ventrally, with rounded latero-basal lobe. Tergum VII moderately produced and emarginate. Tergite VIII forming single sclerite, distinctly emarginate posteriorly ( Fig. 4 ). Terminal sclerite of segment IX (spiculum) well-sclerotized, robust, widely rounded posteriorly ( Fig. 5 ). Aedeagus ( Fig. 6 ); apical portion of tegmen about as long as basal-piece, with small paired lobules laterally near base.

Female. Externally differing from male as follows: fore legs and abdominal sterna simple, tergum VII subtriangular, evenly rounded apically.

Variation. Body length (♂♀) 3.4–4.5 mm.

Type material. Holotype, ♂: SE THAI, 50 km SE Trat, 11°52′N 102°48′E, Hat Ban Chuen env. 21.– 22.v.2005, 0–5 m, E. Jendek & O. Šauša lgt. [p] ( NMPC).

Paratypes: 9 ♂♂ 2 ♀♀, same data as holotype ( ZKDC, BMNH, DCDC) ; 1 ♀, S-VIETNAM Nam Cat Tien Nat. Park 1.— 15.5. 1994 Pacholatko & Dembicky [p] // Formicomus fouqueti Pic det. G.Uhmann 1986 [p+h] (NHMW); 1 ♀, CAMBODIA NW Sisophon, small lake near Mean Chey University 13°34′55′′N 102°55′26′′E 15.02.2017, W. Rossi lgt. ( ZKDC) .

Differential diagnosis. Anthelephila abnormis sp. nov. may somewhat resemble members of the A. censor species-group ( Kejval 1999) by body form and the presence of setose bands on the elytra, but differs clearly by the strongly convex pronotal disc, nearly evenly sloping towards the base. It can be easily recognized by the male characters, especially by the modifications of the abdominal sterna and well-sclerotized sclerite of segment IX, that are unique within the whole genus.

Etymology. From Latin abnormis (extraordinary, unusual), refering to the unique abdominal characters of the males.

Distribution. Cambodia, Thailand, Vietnam.

Figures

FIGURES 1 – 6. Anthelephila abnormis sp. nov. (holotype ♂). Profemur and tibia (1); abdominal sterna IV – VII (2); sternite VIII, half, dorsal view (3); tergite VIII (4), sclerite of segment IX (5); apical portion of aedeagus (6). Scale (0.5 mm): A—Fig. 4, B—Fig. 1, D—Figs 2, 5; (0.3 mm): C—Figs 3, 6.

FIGURES 107 – 114. Body in dorsal view. Anthelephila abnormis sp. nov., paratype ♂ (107); A. ailani sp. nov., holotype ♂ (108); A. disparilis sp. nov., holotype ♂ (109); A. keahi sp. nov., holotype ♂ (110); A. laopako sp. nov., holotype ♂ (111); A. provecta sp. nov., holotype ♀ (112); A. theravada sp. nov., paratype ♀ (113); A. triplex sp. nov., holotype ♂ (114).