Coenonica wingonbiensis, Roberto Pace, 2012

Roberto Pace, 2012, Aleocharinae from Gabon (Coleoptera: Staphylinidae), Tropical Zoology 25 (4), pp. 157-172 : 162

Coenonica wingonbiensis n. sp.

( Figures 7 and 8 )

Holotype ♀, Gabon, Penisola di Pointe Denis, Pointe Wingonbiè, 17.XII.1995, leg. L. Bartolozzi and S. Taiti, num. mag. 1784, n. coll. 14824, MSNF.

Description

Length: 2.57 mm. Body brown, base of the elytra and posterior border of free abdominal tergites one to three reddish-brown, antennae brown with the three basal antennomeres yellowish-red, legs yellowish-red with posterior femora brown. Eyes longer than the postocular region in dorsal view. Second antennomere shorter than the first, third a little shorter than the second, fourth to ninth transverse. Reticulation of the head strong, that of the pronotum clear, that of the elytra weak, that of the abdomen absent. Puncturation of the head very dense. Granulation of pronotum, elytra and abdomen dense and weakly pronounced. Puncturation of the head very dense. Granulation of pronotum, elytra and abdomen dense and very protruding. Pronotum with anterior median sulcus weak, posterior median depression wide and sides weakly sinuate in front of the posterior angles. Spermatheca: Figure 8 .

Comparative notes

The very transverse pronotum is similar to that of C. aethiopica Fauvel, 1904 from Tanzania, of which I have examined the type series of two ♀♀ labelled ‘Usambara, Derema, 850 m, 16-19.VII.1901, Conradt S., Coenonica aethiopica Fvl. ’ (IRSNB). The spermatheca of the new species has the distal bulb almost spherical, whereas that of C. aethiopica is oval in shape, the pronotum of C. aethiopica is lacking an anterior median sulcus which is present in the new species. The new species also differs from C. gabonensis Pace, 2009 in the transverse pronotum and in the distal bulb of the spermatheca being globose and not oval as in C. gabonensis .

Figures

Figures 1 – 11. Habitus, aedeagus in lateral and ventral views, spermatheca and male sixth free tergite. 1 – 4: Brachida gabonensis n. sp.; 5 – 6: Cameronium gabonense n. sp.; 7 – 8: Coenonica wingonbiensis n. sp.; 9 – 11: Eustenidia gabonensis n. sp. Scale bars: 1: 1.8 mm; 5: 1.37 mm; 7: 2.57 mm; 9: 1.46 mm. Other scale bars: 0.1 mm.