Pseudohesperus tauraco, Hromádka, 2010

Hromádka, Lubomír, 2010, Revision of the Afrotropical species of the genus Pseudohesperus, with taxonomic notes on other Afrotropical species of the subtribe Philonthina (Coleoptera: Staphylinidae), Acta Entomologica Musei Nationalis Pragae 50 (2), pp. 495-516 : 508-509

Pseudohesperus tauraco sp. nov.

( Figs. 13–17 )

Type locality. Democratic Republic of the Congo, Massif Ruwenzori, Kyandolire, 1700 m a.s.l.

Type material. HOLOTYPE: J, ‘ Democratic Republic of the Congo [‛Congo Belge’], Massif Ruwenzori , Kyandolire, 1700 m, Camp des Garde (terreau), 7.-9.x.1952, P. Vanschuytbroeck & J. Kekenbosch 1136-39 // Holotypus, Pseudohesperus tauraco sp. nov., Hromádka det. 2010 [red oblong label, printed]’ ( MRAC). PARATYPES: DEMOCRATIC REPUBLIC OF THE CONGO: ♀, Massif Ruwenzori , Kyandolire , 1.750 m, Riv. Mulaku, Kakalari (terreau), [‛Congo Belge’]: P.N.A., 16.X.1952, P. Vanschuytbroeck & J. Kekenbosch, 1302 ( MRAC) ; ♀, Massif Ruwenzori , Kalonge , 2.060 m, Ruiss , Kalambure affl. Katauleko , [‘Congo Belge’]: P.N.A. 30.i.-21.ii.1953, P. Vanschuytbroeck & J. Kekenbosch 2225-59 ( MRAC), ♀, Massif Ruwenzori , Kalonge, 2.210 m (terreau), [‛Congo Belge’]: P.N.A., 4.ix.1952, P. Vanschuytbroeck & J. Kekenbosch 934 ( MRAC), J, Kivu: T. Kalohe, Bltale, N.O. Kahusi, 1600m, 29.vi.1951, N.Leleup, Récolté dans l’humus ( LHPC) ; ♀, Massif Ruwenzori , Kalonge 2.010m Riv. Nyamwamba, affl. Butahu, [‛Congo Belge’]: P.N.A., 2.-3.ii.1953, P. Vanschuytbroeck & J. Kekenbosch 2214-21 ( MRAC) ; J, Massif Ruwenzori 1.780m, Kyandolire, 1780m, R. Bwisonge, affl. Butahu (terreau), [‛Congo Belge’]: P.N.A. 12.x.1952, P. Vanschuytbroeck & J. Kekenbosch 1253-57 ( MRAC) ; J, Massif Ruwenzori , Kalonge, 2.480m. (ét bambus), R. Nyamwamba-Ihongero, [‛Congo Belge’]: P.N.A., 26-27.viii.1952, P. Vanschuytbroeck & J. Kekenbosch ( MRAC) ; ♀, Massif Ruwenzori , Kyandolire , 1750m, Riv. Mulaku af Kakalari (terreau), [‛Congo Belge’]: P.N.A., 14.x.1952, P. Vanschuytbroeck & J. Kekenbosch ( LHPC). Each paratype is provided with a red printed paratype label .

Description. Body length 6.1 mm, length of fore body (to end of elytra) 3.5 mm.

Colouration. Head black, pronotum, scutellum, elytra and abdomen black-brown, mandibles, maxillary and labial palpi brown, apex of labial and maxillary palpomeres 3 yellowbrown, antennae black, femora and tarsomeres 5 of all tarsi brown-yellow, tibiae and remaining tarsomeres dark brown.

Head transverse, markedly wider than long (ratio 27: 20), parallel-sided. Posterior angles obtusely rounded. Eyes flat, slightly longer than temples (ratio 8: 7). Four coarse punctures present between eyes, distance between medial interocular punctures four times as large as distance between medial and lateral puncture. Medial punctures distinctly shifted anteriad. Middle portion of head with wide impunctate median area, each side and temple area with several variably large punctures. Posterior margin of each eye with two coarse punctures. Surface without microsculpture.

Antennae very long, exceeding posterior margin of pronotum by antennomeres 10 and 11 when reclined. All antennomeres longer than wide. Relative lengths of antennomeres 1–11: 1 = 10 units, 2 and 3 = 7 units, 4 = 6 units, 5 and 6 = 5.5 units, 7–10 = 5 units and 11 = 6 units.

Pronotum highly convex, wider than long (ratio 30: 28), anterior angles conspicuously deflexed, vaguely obtusely rounded, posterior angles markedly rounded. Each dorsal row with 4–5 large punctures, and 9–10 small punctures, middle portion of pronotum with wide impunctate longitudinal band. Each side with many irregularly arranged small punctures and several large punctures between them. Surface without microsculpture.

Scutellum very finely punctate, punctures smaller than eye-facets and separated by two puncture diameters in transverse direction; setation black.

Elytra combined wider than long (ratio 38: 33), hardly widened posteriad. Punctation very fine and sparse, punctures smaller than eye-facets, separated by 2–3 puncture diameters. Surface without microsculpture; setation dark.

Legs. Metatarsus about as long as metatibia. Relative lengths of metatarsomeres 1–5: 1 = 10 units, 2 = 5 units, 3 = 4.5 units, 4 = 4 units and 5 = 7 units.

Abdomen wide, very slightly narrowed towards apex. First three visible tergites with two basal lines, elevated area between lines with scattered punctures. Punctation of visible tergites finer and much sparser than that on elytra, becoming sparser towards posterior margin of each tergite. Surface between punctures without microsculpture. Setation similar to that on elytra.

Male. Protarsomeres 1–4 simple, each with few modified pale setae laterally. Sternite VIII ( Fig. 16 ), sternite IX ( Fig. 17 ), aedeagus ( Figs. 13–15 ).

Female. Unknown.

Differential diagnosis. Pseudohesperus tauraco sp. nov. may be distinguished from P. tyto sp. nov. by a narrower and sparser punctation of the head and a different shape of the aedeagus and from P. proselytus by a wider head, shorter antennae and denser punctation of the scutellum.

Etymology. The name of this species, a noun in apposition, is the Latin generic name of the African red-crested turaco Tauraco erythrolophus (Vieillot, 1819).

Distribution. Democratic Republic of the Congo.

Figures

Figs. 13–27. 13–17 – Pseudohesperus tauraco sp. nov. (13 – aedeagus, ventral view; 14 – aedeagus, lateral view, 15 – apical portion of paramere with sensory peg setae, ventral view; 16 – apical portion of male sternite VIII, ventral view; 17 – male sternite IX, ventral view). 18–22 – Pseudohesperus bafutensis (Levasseur, 1967) (18 – aedeagus, ventral view; 19 – aedeagus, lateral view; 20 – apex of paramere with sensory peg setae, ventral view; 21 – apical portion of male sternite VIII, ventral view; 22 – male sternite IX, ventral view). 23–27 – Pseudohesperus tyto sp. nov. (23 – aedeagus, ventral view; 24 – aedeagus, lateral view; 25 – apex of paramere with sensory peg setae, ventral view; 26 – apical portion of male sternite VIII, ventral view; 27 – male sternite IX, ventral view).