Discovery of Antireicheia in Cameroon with description of four new species and discussion on phylogeny and distribution of endogean Reicheiina (Coleoptera: Carabidae: Scaritinae: Clivinini)
Author
Grebennikov, Vasily V.
Author
Bulirsch, Petr
Author
Magrini, Paolo
text
Zootaxa
2009
2292
1
14
journal article
10.5281/zenodo.275299
1ed993d6-c9ea-4142-87d4-83009d060e27
1175-5326
275299
Antireicheia deuvei
sp. nov.
(
Figs. 11–16
)
Type
material.
Holotype
(
MNHN
) male labelled "Mt Bamboutos/
2600 m
/ 30.31.X.[19]75// lavages de/ terre// Mission
Cameroun
/ C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris".
Paratypes
(
MNHN
,
PBC
,
PMC
): 19 unsexed specimens with the same data as HT; 4 unsexed specimens labelled "Bamboutos/
2600 m
/
31.X.
[19]75// Mission
Cameroun
/ C.N.R.S. RCP 318/ Octobre-Novembre 1975// Muséum/ Paris".
Description.
Body light rusty-brown, antennae, mouthparts and legs slightly paler (
Fig. 11
); length
2.10– 2.30 mm
(HT
2.15 mm
, mean
2.19 mm
, n=24).
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 broad furrow; vertex with fine, irregular reticulation; antennomeres 6–10 slightly wider than long; antennal length
0.62 mm
(HT).
Pronotum
with sides in anterior part very slightly (HT, some PT) to slightly (other PT) rounded, moderately attenuated anteriorly; anterior angles sharp, slightly protruding anterad; ratio of pronotal length to width 1.02–1.08 (HT 1.06, mean 1.05); ratio of pronotal width to head width 1.38–1.48 (HT 1.45, mean 1.45).
Elytra
almost oval, slightly broadened, maximum width just before middle; base slightly sloping; humeri broadly rounded; lateral channel broad, not narrowed apicad; reflexed lateral margin with 2(–3) humeral teeth; all striae consisting of rows of sparse, fine punctures; in apical third punctures finer; lateroapical part almost smooth; elytral intervals flattened, third interval without DSP; ratio of elytral length to width 1.66–1.79 (HT 1.71, mean 1.72); ratio of elytral length to pronotal length 2.03–2.13 (HT 2.08, mean 2.08); ratio of elytral width to pronotal width 1.21–1.32 (HT 1.28, mean 1.27).
Aedeagus
with median lobe (
Figs. 12, 13
)
0.50 mm
(HT); parameres as in
Fig. 14
; urite as in
Fig. 15
.
Stylomeres
as in
Fig. 16
.
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.
Differential diagnosis.
Antireicheia deuvei
sp. nov.
can be distinguished from
A. demirei
sp. nov.
by the smaller body (
2.10–2.30 mm
versus 2.70–3.00 mm), by the elytra with less rounded humeri and by the distinctly deeper strial punctures; from
A. hintelmanni
sp. nov.
by the non-protruding ocular part of the genae, by the elytral lateral margin without several teeth, by no DSP, and from both species by the shape of the aedeagus (
Figs. 12–13
versus
Figs. 2–3
,
7–8
).
Antireicheia deuvei
sp. nov.
can be distinguished from
A. camerounensis
sp. nov.
using the last couplet in the species key.
Etymology.
Patronymic, in honor of Thierry Deuve (MNHN, Paris,
France
).