Thyreocephalus guineensis Bernhauer 1912, comb. nov.
Creators: name: Janák, Jiří
name: Bordoni, Arnaldo
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Thyreocephalus
Thyreocephalus guineensis

description: Thyreocephalus guineensis (Bernhauer, 1912) comb. nov.
(Figs. 166, 167, 172–177)
Eulissus guineensis Bernhauer, 1912a: 183; Herman, 2001: 3627.
Type locality. Guinea (without additional data).
Type material. Syntype (sex indet.): GUINEA: “ Guinea ”, “ Syntypus ”, “ guineensis, Brnh. n. sp. ”, “ Thyreocephalus guineensis (Bernhauer), J. Janák det. 2006” (DEI). The specimen is devoid of the genital segment.
Additional material examined. CAMEROON: 1 spec.: Joko (MFNB). CENTRAL AFRICAN REPUBLIC: 4 spec.: Uamgebiet, Bosum, 1-10.iv.1914, S. Tessmann (MFNB, JJRC); 3 spec.: Uamgebiet, Bosum, 21–30.iv.1914 S. Tessmann (MFNB, ABFI, JJRC). DEMOCRATIC REPUBLIC OF CONGO: 1 spec.: Zaire, Buje, 27.iii–4.iv.1975, A. Simonetta (ABFI); 3 ♂: Route Kamituga à Bukavu, 1700m, 5.iv.1949, N. Leleup (MRAC, JJRC). GHANA: 1 ♀: Manso, Amenfi, iv–vi.1968, ex coll. Breuning (MRAC). IVORY COAST: 1 ♀: Côte d'Ivoire, Zepréghé, Daloa, iii.1962, J. Decelle (MRAC). NIGER: 3 spec.: Oberssanga Kag., Beri b. Garnot, 26.ii–2.iii.1913, S. Tessmann (MFNB, ABFI). NIGERIA: 3 ♂: Gashaka, Gumti NP, 560m, Kwano, 07°20´N; 11° 35´E, 25.4.– 3.5.2011, Kremitovský (JJRC, VKBC).
Redescription. Body length 17–19 mm; length from anterior margin of head to posterior margin of elytra: 10– 11 mm. Dark reddish brown; elytra with a large yellow, lateral, anterior patch (Fig. 166); abdominal segment 7 completely or only on posterior third light red, segment 8 and genital segment light red. Head and pronotum and related punctation as in Figs. 167, 173; labrum as in Fig. 174. Pronotum shorter and narrower than head, markedly dilated anteriorly, with sinuate sides. Elytra as long and wide as pronotum, with very scarcely marked humeral angles. Surface with punctation arranged in four series, two near suture, one median and one lateral. Abdomen with fine, deep and dense punctation.
Male. Tergite 10 and sternite 9 of male genital segment as in Figs. 175, 176. Aedeagus (Fig. 177), very large, 3.4 mm long, oblong and proportionally narrow, with broad median lobe and long parameres; inner sac tape-like, very long, folded on itself, covered with scales.
Differential diagnosis. Thyreocephalus guineensis differs from T. paraferox in elytra with large yellow lateral patch and in different shape of the aedeagus with apically rounded median lobe.
Distribution. The species is distributed in Cameroon, Central African Republic, Democratic Republic of Congo, Ghana, Niger and Nigeria (Fig. 172).
Remarks. As the superior line of pronotal hypomeron is turning downwards well before middle, joining or almost joining inferior line next to front margin of procoxae and continuing onto anterior margin of pronotum, the species was transferred from Eulissus to Thyreocephalus.
description: Published as part of 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), pp. 1-94 in Zootaxa 4038 (1) on pages 67-70, DOI: 10.11646/zootaxa.4038.1.1, http://zenodo.org/record/289876