Thyreocephalus michaeli 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 : 49-51

Thyreocephalus michaeli Janák, 2010

( Figs. 108 , 119–125 )

Thyreocephalus michaeli Janák, 2010: 138 .

Type locality. Ivory Coast, Bingerville.

Type material examined. Holotype ♂: IVORY COAST: “ Ivory Coast, à la lampe U. V., Côte d’Ivoire: Bingerville, 18.III.1962, J. Decelle” ( MRAC). Paratypes: CAMEROON: 1 ♂: Kamerun, Joko ( MFNB); 1 ♀: Joko, Kamerun ( HNHM). CENTRAL AFRICAN REPUBLIC: 1 ♂: La Maboke, 6–9.vi.1973, R. Linnavuori ( ZMH). DEMOCRATIC REPUBLIC OF CONGO: 1 ♂: Haut-Uele, Yebo Moto, iii.1926, L. Burgeon; 1 spec.: Bunia, 1938, RR. FF. Maristes ( MRAC); 1 ♂: Haut-Uelé, Moto, L. Burgeon 1923 ( MRAC). GHANA: 1 ♂: Bechem Ghana, iii.1986, Werner ( MSBG); 3 ♂: Kumasi, iii. 1986, Werner ( MSBC, JJRC); 1 ♂: Ashanti Reg., Kumasi: Nhiasu, 6.43 N, 1.36W, 22.xi.1967, Endrödy-Younga ( HNHM). GUINEA: 2 ♀: Sérédoux, 7–8.iv.1975, Zott ( MFNB); 1 ♀: Sérédoux, 16.iv.1975, Zott ( JJRC). IVORY COAST: 1 ♂: Bingerville, 1–15.xi.1962, J. Decelle ( MRAC); 3 ♀: Bingerville, i.1962, J. Decelle, à la lampe U.V. ( MRAC, JJRC). NIGERIA: 1 ♂: Nigeria, Afr. Ore, 27.xii.1970, Politzar ( JJRC).

Additional material examined. CAMEROON: 1 spec.: Joh.-Albrechtshöhe, 13.vi–10.vii.1898, L. Conradt, ( MFNB). CENTRAL AFRICAN REPUBLIC: 1 spec.: Central African Rep., SW, 50 km Boda, 500 m, 04.03N, 17.20E, 7.xii.2008, J. Halada ( ABFI); 1 spec.: Central African Rep., SW, 80 km Boda, 450 m, 04.29N, 16.47E, 21.xii.2008, J. Halada ( ABFI); 1 spec.: 70 km NNE Bangui, 130 m, 04.57N, 18.46E, 8.iv.2010, J. Halada ( ABFI); 1 spec.: 50 km E Bossangoa, 500 m, 06.28N, 18.02E, 27.v.2009, J. Halada ( ABFI); 2 spec.: 45 km Nola, 570–600 m, 03.40N, 16.26E, 13–17.xii.2008, J. Halada ( ABFI); 1 spec.: 45 km N Sibut, 530 m, 06.06N, 19.08E, 11.v.2009, J. Halada ( ABFI); 2 spec.: 40 km S Bandoro, 06.41N, 19.07E, 14.v.2009, J. Halada ( ABFI); 1 spec.: Ombella- Mpoko Prov., 75 km NNE Bangui, 5.– 6.iv. + 8.–11.iv.2010, A. Kudrna Jr. ( JJRC); 1 spec.: Lobaye Prov., 50 km S Boda, Ngoto vill., river Lobaye, 500m, 7.–9.xii.2008, A. Kudrna Jr. ( JJRC); 1 spec.: 60 km W of Bumbio, 630m, N03° 50', E16° 44', 4.xii.2010, M. Kadlecová ( JJRC). GHANA: 13 spec. (partly damaged): Ashanti region, Kwadaso, 259 m, 6.55N, 1.39W, 26.v.1969, S. Endrödy-Younga ( HNHM, ABFI); 11 spec.: Ashanti region, Kwadaso, 320 m, 6.42N, 1.39W, 17.iii.1969, S. Endrödy-Younga ( HNHM, ABFI). LIBERIA: 3 spec.: Peter Town, Montserrado county, 26.iii.1988, F. Krell ( SMNS, ABFI); 1 spec.: Nimba Prov., Saclepea, 26–27.iii.1988, F. Krell ( SMNS); 1 spec.: Bong Town, 21.iii.1988, F. Krell ( ABFI). NIGERIA: 5 spec.: Nsukka, 22.vii.1988, F. Krell ( SMNS, ABFI); 1 spec.: Ile-Ife, 4.vii.1988, F. Krell ( SMNS).

Redescription. Body length 13–18.5 mm long; length from anterior margin of head to posterior margin of elytra: 8–10.2 mm. Reddish brown, elytra light orange brown, tibiae, mandibles and antennal segments dark reddish-brown to brown, apical parts of two first antennal segments and apical part of last segment paler reddishbrown ( Fig. 124 ). Shiny. Head and pronotum with micro-punctation. Head and pronotum and related punctation as in Figs. 119 , 125 ; labrum as in Fig. 120 . Elytra sub-rectangular with slightly rounded sides, as long as pronotum, and wider than it, with strictly rounded humeral angles. Surface with fine and dense punctation, arranged in numerous series. Abdomen with extremely fine and dense, transverse micro-striation and fine, deep, dense punctation, arranged in numerous series on each segment.

Male. Tergite 10 and sternite 9 of male genital segment as in Figs. 121, 122 . Aedeagus ( Fig. 123 ) small, very narrow, 1.6 mm long, with narrow, characteristic median lobe; parameres asymmetrical; inner sac very narrow and long, with few, little scales.

Differential diagnosis. Thyreocephalus michaeli differs from T. magnus in the smaller reddish brown body, dense elongate punctures on head and less elongate and differently 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 119 – 123. Thyreocephalus michaeli Janák; 119, head and pronotum; 120, labrum; 121, male tergite 10; 122, male sternite 9; 123, aedeagus.

FIGURES 124 – 129. 124, 125, Thyreocephalus michaeli Janák; 126, 127, T. ferox (Harold); 128, 129, T. raptor Tottenham; 124, 126, 128, habitus; 125, 127, 129, head. Scale 1 mm.