Thyreocephalus gabonensis Coiffait, 1968

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 : 76-77

publication ID

https://doi.org/ 10.11646/zootaxa.4038.1.1

publication LSID

lsid:zoobank.org:pub:1B62B78C-AA59-4417-A4FC-1CC9CED745E0

DOI

https://doi.org/10.5281/zenodo.6101699

persistent identifier

https://treatment.plazi.org/id/039D87F5-5570-FF8D-FF4A-F8D3FB8CBD80

treatment provided by

Plazi

scientific name

Thyreocephalus gabonensis Coiffait, 1968
status

 

Thyreocephalus gabonensis Coiffait, 1968 View in CoL

( Fig. 195–200 View FIGURE 195 View FIGURES 196 – 200 )

Thyreocephalus gabonensis Coiffait, 1968: 154 View in CoL ; Herman, 2001: 3763.

Type locality. Gabon, Bélinga.

Type material examined. Holotype ♂: GABON: “Belinga 93, 12.2.63, H. Coiffait”, “Mission biologique, au Gabon, P. P. Grassé Directeur”, “ Holotype ”, “ Thyreocephalus gabonensis Coiffait 1967 ” ( MNHNP). Paratypes: 4 ♀: GABON: “Belinga 52, 27.2.63, H. Coiffait”, “ Paratype ” ( MNHNP).

Additional material examined. EQUATORIAL GUINEA: 1 ♂: Guinea Espaňola, Lago Atonguain, J. Mateu ( JJRC).

Redescription. Body length 14–16 mm long; length from anterior margin of head to posterior margin of elytra: 7–8 mm. Dark reddish brown with black head and lighter abdomen; deflexed sides of elytra yellowish; genital segment reddish, antennae brown, legs reddish brown. Head large and wide, with rounded sides and largely rounded posterior angles. Eyes small and flat. Surface shiny, with fine, deep, dense punctation, apart from clypeus and posterior margin. Head and pronotum and related punctation as in Fig. 196 View FIGURES 196 – 200 ; labrum as in Fig. 197 View FIGURES 196 – 200 . Pronotum shorter and narrower than head, with rounded anterior angles and sinuate sides. Surface shiny, with micropunctation. Elytra narrow, narrower than pronotum and as long as it, with marked humeral angles. Surface shiny, with punctation arranged in three series, one near suture, one median and one lateral. Abdomen with transverse micro-striation and fine and sparse punctation.

Male. Tergite 10 and sternite 9 of male genital segment as in Figs. 198, 199 View FIGURES 196 – 200 . Aedeagus ( Fig. 200 View FIGURES 196 – 200 ) 1.9–2.7 mm long, with triangular median lobe; parameres symmetrical; inner sac ribbon-like, very narrow and short, covered with small scales.

Differential diagnosis. Thyreocephalus gabonensis differs from the similarly colored T. marginipennis in the larger body, wider, sub-ovoid head and different shape of the aedeagus.

Bionomics. The species was collected under bark.

Distribution. The species is distributed in Gabon and Equatorial Guinea ( Fig. 195 View FIGURE 195 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Thyreocephalus

Loc

Thyreocephalus gabonensis Coiffait, 1968

Janák, Jiří & Bordoni, Arnaldo 2015
2015
Loc

Thyreocephalus gabonensis

Herman 2001: 3763
Coiffait 1968: 154
1968
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