Thyreocephalus magnus Janák, 2010

Janák, Jiří & Bordoni, Arnaldo, 2015, Revision of the genus Thyreocephalus and description of Afrus gen. nov. of Africa south of the Sahara (Coleoptera: Staphylinidae: Staphylininae), Zootaxa 4038 (1), pp. 1-94 : 47-49

Thyreocephalus magnus Janák, 2010

( Figs. 106–108 , 114–118 )

Thyreocephalus magnus Janák, 2010: 135 .

Type locality. Guinea, Coyah.

Type material examined. Holotype ♂: GUINEA: “W Africa, Guinea Coyah, 15.III–15.IV.1969, leg K. Ferencz”, “ Holotype, Thyreocephalus , magnus sp. n., J. Janák det. 2002” ( HNHM). Paratypes: BENIN: 1 spec.: Village Akongbere near Save, 19.iv.–26.iv.2000, A. Kudrna Jr. ( JJRC); 1 ♂: Bembereke, 2 km W of Gando, 2– 3.vii.2001, A. Kudrna Jr. ( JJRC). BURKINA FASO: 1 ♀: Ober Volta Bobo Dioulasso, x.1983, H. Politzar ( NHMW); 5 ♂, 2 ♀: Haute-Volta, Bobo-Dioulasso, 11.12N, 4.18W ( MRAC, JJRC). CAMEROON: 1 ♀: Joko, Kolin ( MFNB). CENTRAL AFRICAN REPUBLIC: 1 ♂, 1 ♀: Bambari, iii.1964, G. Pierrard ( MRAC). GUINEA: 2 ♂, 2 ♀: same data as holotype ( HNHM), JJRC); 1 ♂: Région Kindia, Mt. Gangan 750 m Exped. Mus. G. Frey Franz. Guinea 1951, 3.v.51, Bechyne ( NHMW); 1 ♀: Région Kindia, Mt. Gangan 500 m, Exped. Mus. G. Frey Franz. Guinea 1951, 6.v.51, Bechyne ( NHMW); 1 ♂: Coyah, iv.1967, K. Ferencz ( HNHM). NIGERIA: 1 ♂: Kaduna, 10–17.v.1971, Politzar ( JJRC); 2 ♀: Kaduna, ix.1971, R. Frieser ( MRAC). TCHAD: 1 ♂: Mondou, Bebedjia, 21.i.1978, G. Ruella ( MRAC).

Additional material examined. BENIN: 1 ♂, 1 ♀: E Kandi, 7 km E Bensekou, 23–24.vii.2001, A. Kudrna ( ABFI); 8 spec.: 11 km S Kerou, Dept. du L'Atakoa, 23.vi.2001, F. & L. Kistner ( SMNS, ABFI). BURKINA FASO: 1 spec.: Ober Volta, Boba Dinlasso [= Bobo-Dioulasso], 11.11N, 4.18W, xii.1985, Politzar ( MFNB). CAMEROON: Vina Djivorké (Nyassae) 20.iv.1974 ( ABFI). GUINEA: 1 ♀: Kindia, 22.vi.1983, S. Murzin ( NHMW); 6 spec.: Kindia, 1–22.vi.1983, S. Murzin ( NHMW, ABFI). IVORY COAST: 1 spec.: Comoe, xi.2001, P. Moretto ( ABFI); 2 ♂, 2 ♀: Comoe, iv.2002, P. Moretto ( ABFI). NIGERIA: 2 ♂, 4 ♀: Gashaka Gumti NP, 560m, Kwano, 07°20´N; 11° 35´E, 25.iv.–3.v.2011, P. Kremitovský ( JJRC, VKBC). SIERRA LEONE: 1 ♂, 1 ♀: Northern Prov., Bumbuna, 6.iv.1996, W. Rossi ( ABFI); 1 ♀: Freetown, L. Levasseur coll. ( MNHNP); 1 ♀: environs de Poli, Mango, 24.iv.1974 ( MNHNP).

Redescription. Body length 24–35 mm; length from anterior margin of head to posterior margin of elytra: 14.5–19.5 mm. Dark reddish-brown or brown, elytra and abdomen red, antennae brownish with apical half of antennal segment 11 reddish-brown ( Fig. 106 ). Shiny, very robust and long. Head and pronotum with micropunctation. Head and pronotum and related punctation as in Figs. 107 , 114 ; labrum as in Fig. 115 . Elytra longer and wider than pronotum, slightly dilated posteriad, with very marked humeral angles. Surface with fine but well visible punctation, arranged in numerous, sometimes irregular, series. Abdomen with extremely fine and dense, transverse micro-striation and fine, not sparse punctation, arranged in numerous series on each segment.

Male. Tergite 10 and sternite 9 of male genital segment as in Figs. 116, 117 . Aedeagus ( Fig. 118 ) very large, very narrow and long, 3.1–3.3 mm long, with narrow, acute median lobe; parameres symmetrical; inner sac very narrow and long, with few, little scales.

Differential diagnosis. Thyreocephalus magnus differs from the other species of the group, T. michaeli , in the very large dark reddish brown body, rounded punctures on head and more elongate and different shaped aedeagus.

Distribution. The species is distributed in West and Central Africa ( Fig. 108 ).

Figures

FIGURE 108. Distribution of species in Thyreocephalus giganteus group (▲ = T. giganteus Janák), T. magnus group, (● = T. magnus Janák, ○ = T. michaeli Janák) and T. ferox group (■ = T. ferox (Harold )).

FIGURES 102 – 107. 102, 103, Thyreocephalus meridioafricanus sp. nov.; 104, 105, T. giganteus Janák; 106, 107, T. magnus Janák; 102, 104, 106, habitus; 103, 105, 107, head. Scale 1 mm.

FIGURES 114 – 118. Thyreocephalus magnus Janák; 114, head and pronotum (iop—interior ocular puncture, pop—postocular puncture); 115, labrum; 116, male tergite 10; 117, male sternite 9; 118, aedeagus.