Thyreocephalus tsingidianus, Janák, Jiří & Bordoni, Arnaldo, 2015

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 : 19

Thyreocephalus tsingidianus sp. nov.

( Figs. 29–34 , 238, 239 )

Type locality. Democratic Republic of Congo, Tsingidi, 2° 24' 15.6'' S, 12° 58' 11.0'' E

Type material. Holotype ♂: REPUBLIC OF CONGO: “ DRC [sic!, typographic error, in reality not DRC = Democratic Republic of Congo but Republic of Congo]: Tsingidi, 2.24. 15.6 S, [= 2° 24' 15.6'' S], 12.58. 11.0 E [= 12° 58' 11.0'' E], November 2013, leg. L. J. Niemand”, “ Holotypus Thyreocephalus tsingidianus sp. nov., Janák & Bordoni det. 2015” ( TMSA).

Description. Body length 17 mm; length from anterior margin of head to posterior margin of elytra: 11 mm. Body black; metasternum and abdomen reddish brown with the first 4 visible tergites (3–6) blackish brown; tergites 7, 8 and genital segment yellowish; paratergites and sternites yellowish. Head and pronotum and related punctation as in Fig. 30 ; labrum as in Fig. 31 . Head and pronotum with extremely fine and dense micro-punctation. Elytra short, shorter and wider that pronotum, with marked humeral angles. Surface with superficial, spaced punctation, arranged in three series, one near suture, one median and one lateral. Abdomen with extremely fine and dense, transverse micro-striation and fine, sparse punctation, with yellow setae.

Male. Lateral parts of temples densely and rather rather coarsely punctured. Tergite 10 and sternite 9 of the male genital segment as in Figs. 32, 33 . Aedeagus ( Fig. 34 ) 2.2 mm long, with narrow and very long median lobe.

Female. Unknown.

Differential diagnosis. Thyreocephalus tsingidianus sp. nov. markedly differs from the other species of the T. pilosus group in different coloration of abdomen with tergites 3–6 blackish brown, apical part of abdomen and paratergites yellow and in the very long and narrow, apically pointed median lobe of aedeagus.

Etymology. The specific epithet refers to the type locality.

Distribution. The species is distributed in Republic of Congo ( Fig. 29 ).

Bionomy. The species was collected in pitfall traps baited with Chimpanzee dung ( Figs. 238, 239 ).

Remarks. Left temple of the holotype is exceptionally by having only one postocular puncture.

Figures

FIGURE 29. Distribution of species in Thyreocephalus pilosus group (● = T. africanus (Bernhauer), Δ = T. brunneiventris (Tottenham), ▲ = T. pilosus (Roth), ☆ T. pseudoafricanus sp. nov., ○ = T. secretus (Bernhauer), ★ = T. tsingidianus sp. nov.).

FIGURES 30 – 34. Thyreocephalus tsingidianus sp. nov.; 30, head and pronotum; 31, labrum; 32, male tergite 10; 33, male sternite 9; 34, aedeagus.

FIGURES 238 – 240. 238, 239, Tsingidi, Republic of Congo (type locality of Thyreocephalus tsingidianus sp. nov. and T. pseudoafricanus sp. nov.); 238, forest; 239, pitfall traps; 240, Mariepskop, South Africa (type locality of T. meridionalis sp. nov.) — arrow indicates a place where the specimen was collected.