Entypophana njiapanda Sehnal

Sehnal, Richard, 2017, Review of the central African leaf chafer genus Entypophana Moser, 1913 (Coleoptera: Scarabaeidae: Melolonthinae: Schizonychini), Zootaxa 4258 (2), pp. 157-171 : 166-169

Entypophana njiapanda Sehnal , new species

Figs 6A–D , 7F , 8F , 9F , 10F .

Type locality. Tanzania, Kilombero District , Mwanihana.

Type material (2 specimens). Holotype, ♂, labelled: “ TANZANIA, Njia Panda 970m / Mwanihana, Udzungwa Mts. N.P. / S07°47′28″ E36°49′34″ / 27-30.xi.2010 Light Trap / leg. Smith, R & Takano, H [white, printed] // Schizonychini / Schizonycha ♂ / ( Entypophana ) sp. / R. Sehnal det. 2012 [white, printed] // BMNH {E} / 2012-92 / 1198576 [white, printed]” . PARATYPE, ♀: same data as holotype.

Type depository. BMNH.

Description of the holotype (♂). Body length 17.9 mm, elongate, almost parallel, strongly convex. Dorsal and ventral surface weakly shiny, head and pronotum dark brown, elytra brown, macrosetation pale ( Fig. 6A ). Dorsal surface of head, pronotum, scutellum, and elytra covered with white, short, recumbent, scale-like macrosetae; ventral surface of thorax and abdomen with yellow, recumbent, long macrosetae. Head appendages and legs covered with reddish-yellow, moderately long macrosetae.

Head with labrum transverse, deeply bilobed; lobes rounded, irregularly and weakly punctate; lobes covered with long, erect macrosetae. Head including clypeus smooth, glossy, fissured, densely coarsely punctate; each puncture with an erect macroseta shorter than puncture diameter. Frontoclypeal carina sinuate in the forward direction; surface behind carina densely but unevenly punctate except a narrow impunctate strip adjacent to frontoclypeal suture. Frontoclypeal suture undulate, medially arched toward occipital carina. Occipital carina always present, prominent, elevated, medially extended into a columnal impunctate summit, laterally diminishing ( Fig. 6B ). Space posterior of frontoclypeal suture with a large, triangular impunctate area. Occiput sparsely, evenly, moderately punctate. Canthus narrow, short, glabrous. Width of both eyes combined approximately equal to maximum width of frons between eyes, eye distinctly extending beyond canthus. Antenna with 10 antennomeres; club with three antennomeres, almost straight, short than antennal shaft (antennomeres 1–7 combined). Antennomeres 1–7 with sparse, long macrosetae; club sparsely, shortly macrosetaceous. Terminal maxillary palpomere expanded apically, slightly shorter than palpomeres 2 and 3 combined.

Pronotum transverse, widest behind midlength; with a large but shallow triangular, anteromedial depression as wide as head, which abruptly rises toward edge of crest. Front margin straight, with angles extended forward. Lateral margins crenulate and macrosetose. Base bordered, medially gently arched toward elytra, with smooth margin paralleled by a row of coarse punctures and hind angles broadly rounded. Crest delimiting anteromedial depression prominent, with a wide strip at edge and summit of crest impunctate. Depression densely covered by deep, asperate punctures with setae no longer than puncture diameters. Punctation of remaining surface also asperate, but sparser and punctures set in rows; setae yellow, scale-like, semirecumbent ( Fig. 6C ).

Scutellum large, almost equilaterally triangular, sides and apex rounded; sides with horseshoe-shaped punctures; each puncture bearing short, narrow, white, scale-like, almost recumbent macroseta.

Elytra weakly convex, parallel-sided, rounded apically; apical angle approximately rectangular. Striae absent, except for feebly visible sutural stria. Humeral umbones present, weakly swollen. Surface not microsculptured, moderately shiny; punctures shallow, regularly spaced, separated by 2–3 diameters. Each puncture bearing shorter than their diameter, narrow, yellow scale-like, almost recumbent macroseta. Epipleuron distinct, complete, narrow, glabrous laterally. Macropterous.

Legs with femora narrow, shiny, irregularly punctate, macrosetaceous. Protibia narrow, distinctly tridentate; terminal spine inserted above medial dent. Protarsomeres 4–5 missing from both legs. Mesotibia and metatibia slightly expanded apicad, with one macrosetiferous, longitudinal carinae. Upper terminal spine of metatibia flattened, slightly curved, acute apically; 1/3 longer than lower, apically trunctate, chisel-shaped metatibial spine. Claws bifid, with ventrobasal teeth ( Figs. 9F ).

Ventral surface covered only by long, semierect, yellow macrosetae. Pygidium slightly transverse, convex, completely bordered; apically broadly rounded; irregularly covered by coarse, umbilicate, macrosetiferous punctures.

Male genitalia ( Figs. 7F , 8F ). Parameres symmetrical, longer than phallobasis, regularly curved in lateral aspect, rounded with double hump apically in lateral aspect, on apex with double apex in dorsal aspect; covered by short, fine, semierect, yellow macrosetae.

Sexual dimorphism. Female differs from male in the following characters: body length 20.0 mm, metatibia more strongly expanded apically; tarsomeres of all legs shorter.

Geographic distribution. Tanzania, Kilombero District ( Fig. 10F )

Differential diagnosis. Entypophana njiapanda can be differentiated from all species of the genus Entypophana using the following diagnostic characters in males: frontoclypeal carina low, sinuate in the forward direction; surface behind frontoclypeal carina densely but unevenly punctate except for a narrow, impunctate strip adjacent to frontoclypeal suture ( Fig. 6B ); head including clypeus smooth, glossy, fissured, densely coarsely punctate; each head puncture with an erect macroseta shorter than puncture diameter ( Fig. 6B ); shape of aedeagus ( Figs. 7F , 8F );

Etymology. Derived from name of type locality Njia Panda ( Tanzania); noun in apposition. Collecting circumstances. Both type specimens were attracted to light (H. Takano, personal communication 2013).

Figures

FIGURES 6 A – D. Entypophana njiapanda new species male, holotype; length 17.9 mm. A, dorsal view; B, detail of head, anterior view; C, head and pronotum, dorsal view; D, labels. Not to scale.

FIGURES 7 A – F. Aedeagus in dorsal view. A, Entypophana apicata Moser, 1913, holotype; B, Entypophana biapicata Moser, 1913, lectotype; C, Entypophana hulstaerti Burgeon, 1946, lectotype; D, Entypophana lujai Moser, 1917, lectotype; E, Entypophana maynei Burgeon, 1946, lectotype; F, Entypophana njiapanda new species, holotype. Scale bar: 1.0 mm.

FIGURES 8 A – F. Aedeagus in lateral view. A, Entypophana apicata Moser, 1913, holotype; B, Entypophana biapicata Moser, 1913, lectotype; C, Entypophana hulstaerti Burgeon, 1946, lectotype; D, Entypophana lujai Moser, 1917, lectotype; E, Entypophana maynei Burgeon, 1946, lectotype; F, Entypophana njiapanda new species, holotype. Scale bar: 1.0 mm.

FIGURES 9 A – F. Inner mesotarsal claw. A, Entypophana apicata Moser, 1913, holotype; B, Entypophana biapicata Moser, 1913, lectotype; C, Entypophana hulstaerti Burgeon, 1946, lectotype; D, Entypophana lujai Moser, 1917, lectotype; E, Entypophana maynei Burgeon, 1946, lectotype; F, Entypophana njiapanda new species, holotype. Scale bar: 1.0 mm.

FIGURES 10 A – F. Map with currently known geographical distribution. A, Entypophana apicata Moser, 1913; B, Entypophana biapicata Moser, 1913; C, Entypophana hulstaerti Burgeon, 1946; D, Entypophana lujai Moser, 1917; E, Entypophana maynei Burgeon, 1946; F, Entypophana njiapanda new species.