Acrotrichis tampoketsae, Darby, Michael, 2014

Darby, Michael, 2014, Studies of Madagascan Ptiliidae (Coleoptera) 3: The genus Acrotrichis including twenty seven new species, Zootaxa 3866 (2), pp. 151-201 : 197-198

Acrotrichis tampoketsae sp. n.

( Figs. 32A –I)

Habitus Fig. 32A . Length 1.06 mm. Very convex reddish brown species, antennae and legs pale brown. Antennomeres 3–11 0.42 mm long Fig. 32 C. Mentum and submentum chaetotaxy Fig. 32 F. Width across eyes 0.39 mm. Pronotum 0.66 mm wide, 0.37 mm long, very strongly curved in posterior half such that there is no hind angle Fig. 32 B. Elytra 0.55 mm long, 0.65 mm wide, with an epipleural carina. Posterior margin of mesoventral collar convex without an excision Fig. 32 H. Metaventral posterior margin and metacoxal plates Fig. 33 I.

Male: ventrite six Fig. 32 G; aedeagus Fig. 32 E.

Female: spermatheca Fig. 32 D.

Etymology. Johnson ms name after the Plateau where the MM specimen was found.

Remarks. The convex shape and form of the spermatheca will immediately separate this distinctive species from all others.

Type data. Holotype: ♀, Ambohitantely SR, ABT/ Sept.2011/04, 1570 m, S. 18°11’46.4" E.47°17’09.9", 1.ix.2011, L.S.Rahanitriniaina ( BMNH). Paratypes: 15 examples, same data as holotype; ♀, Ambohitantely Spec. Res., ABT/ Nov/2011/10, sifting forest litter under palm tree, Winkler app. extr., 1600 m, 18.xi.2011, P. Banar ( BMNH); 1♀, Plateau de Tampoketsa, 1,500 m, 11.iv.1969, mountain forest, leg. H. Franz (MM).

Figures

FIGURE 32. A. tampoketsae. A, habitus; B, side of pronotum viewed at 45 ˚; C, antennomeres 3 – 11; D, spermatheca; E, aedeagus; F, mentum and submentum showing chaetotaxy.; G, ventrite six; H, mesoventral collar x 375; I, metaventral posterior margin and metacoxal plates x 370.

FIGURE 33. A. terminalis. A, habitus; B, side of pronotum viewed at 45 ˚; C, antennomeres 3 – 11; D, aedeagus; E, mentum and submentum showing chaetotaxy (note: dotted lines indicate probable positions of missing setae); F, mesoventral collar x 810; G, metaventral posterior margin x 810.