Antireicheia camerounensis, Grebennikov, Vasily V., Bulirsch, Petr & Magrini, Paolo, 2009

Grebennikov, Vasily V., Bulirsch, Petr & Magrini, Paolo, 2009, Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini), Zootaxa 2292, pp. 1-14 : 8-9

Antireicheia camerounensis sp. nov.

( Figs. 17–22 )

Type material. Holotype ( MNHN) male labelled "Ft. de Bafut/ Nguemba/ 17–XI –[19]69// Muséum Paris/ Cameroun / B. de Miré// Muséum/ Paris". Paratypes ( MNHN, PBC, PMC): 1 male and 1 female with the same data as HT; 1 female labelled "Bafut Nguemba/ de la Haute Nguemba)// alt. 2400 m / 31–X–1975 // lavages de terre// Mission Cameroun / C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris"; 1 female labelled "Bafut Nguemba/ de la Haute Nguemba)// alt. 2400 m / 31–X–1975 // lavages de terre// Mission Cameroun / C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris"; 1 female labelled "Ft. de Bafut/ Nguemba/ 16–VIII –[19]65// Muséum Paris/ Cameroun / B. de Miré// Muséum/ Paris"; 2 females labelled "Bafut Ngemba// alt. 2100 m / 22–X–3–XI–1975 // lavages de terre// Mission Cameroun / C.N.R.S. RCP 318/ Octobre- Novembre 1975 // Muséum/ Paris"; 1 male labelled "Bafut Nguemba/ de la Haute Nguemba)// lavages de terre// Mission Cameroun / C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris"; 2 males and 4 females labelled "Bafut Nguemba/ 2000 m / 24 à 31.X.1975 // lavages de terre// Mission Cameroun / C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris".

Description. Body rusty red-brown, legs, antennae and mouthparts rusty-yellow, fore legs slightly darker ( Fig.17 ); length 2.30–2.45 mm (HT 2.30 mm, mean 2.35 mm, n=14). Head with ocular part of genae not protruding, eye remnant discernable as very small, whitish unfacetted field in anterolateral margin of moderately vaulted genae; genal posterior angles moderately rounded; supraantennal plates separated from genae by moderately deep and narrow furrow; vertex with fine, irregular reticulation; antennomeres 6–10 slightly wider than long; antennal length 0.66 mm (HT). Pronotum with sides in anterior part moderately rounded, slightly attenuated anteriorly; anterior angles blunt, not distinctly protruding anterad; ratio of pronotal length to width 1.01–1.06 (HT 1.06, mean 1.04); ratio of pronotal width to head width 1.46–1.56 (HT 1.55, mean 1.51). Elytra almost oval, moderately broadened, maximum width just before middle; base slightly sloping; humeri broadly rounded; lateral channel moderately broad, slightly narrowed apicad; reflexed lateral margin with 3(–4) distinct humeral teeth and with fine, just recognizable lateral denticulation especially in basal half; median stria slightly and irregularly impressed in basal two thirds, other striae consisting of rows of sparse punctures; median striae basally with moderately rough punctures, lateral ones finer, apical inclination smooth; inner intervals slightly vaulted basally, third interval without DSP; ratio of elytral length to width 1.64–1.72 (HT 1.68, mean 1.68); ratio of elytral to pronotal length 1.94–2.04 (HT 1.96, mean 2.00); ratio of elytral width to pronotal width 1.20–1.28 (HT 1.23, mean 1.23). Aedeagus with median lobe ( Figs. 18-19 ) 0.57 mm long (HT); parameres as in Fig. 20 ; urite as in Fig. 21 . Stylomeres as in Fig. 22 .

Differential diagnosis. Antireicheia camerounensis sp. nov. is most similar to A. deuvei sp. nov., from which it can be distinguished by its shape of the pronotum having a more rounded outline in its anterior part; by the symmetrical median lobe of the aedeagus in ventral view with its apex not turned to left ( Fig. 19 versus Fig. 13 ) and by the generally lighter, larger body (2.30–2.45 mm versus 2.10–2.35 mm). Antireicheia camerounensis sp. nov. can be distinguished from A. demirei sp. nov. by the smaller body (2.30–2.45 mm versus 2.70–3.00 mm), by the less rounded elytral humeri and the distinctly deeper strial punctures; from A. hintelmanni sp. nov. by the ocular part of the genae not protruding, by the elytral lateral margin without several teeth, by the lack of DSP, and from both latter species by the different shape of the aedeagus ( Figs. 18– 19 versus Figs. 2–3 , 7–8 ).

Etymology. Specific epithet derives from the French name of Cameroon.

Figures

FIGURES 17 – 22. Antireicheia camerounensis sp. nov. from Cameroon (Bafut, Nguemba forest), holotype (17 – 21) and paratype (22); 17 — habitus, dorsal; 18 – 19 — aedeagus: lateral (18) and ventral (19); 20 — parameres; 21 — urite; 22 – stylomeres.

FIGURES 11 – 16. Antireicheia deuvei sp. nov. from Cameroon (Mt. Bamboutos), holotype (11 – 15) and paratype (16); 11 — habitus, dorsal; 12 – 13 — aedeagus: lateral (12) and ventral (13); 14 – parameres; 15 — urite; 16 – stylomeres.

FIGURES 1 – 5. Antireicheia demirei sp. nov. from Cameroon (Mt. Oku), holotype (1 – 4) and paratype (5); 1 — habitus, dorsal; 2 – 3 — aedeagus: lateral (2) and ventral (3); 4 – parameres; 5 – stylomeres.

FIGURES 6 – 10. Antireicheia hintelmanni sp. nov. from Cameroon (Mt. Oku), holotype (6 – 9) and paratype (10); 6 — habitus, dorsal; 7 – 8 — aedeagus: lateral (7) and ventral (8); 9 – parameres; 10 – stylomeres.