Dacrysoma ranomafanense, Darby, Michael, 2013

Darby, Michael, 2013, Studies of Madagascan Ptiliidae (Coleoptera) 1: The Tribe Discheramocephalini including eighteen new species, Zootaxa 3718 (3), pp. 239-266 : 250

Dacrysoma ranomafanense sp. n.

( Figs. 5 , 41 , 58 , 62 , 77 , 90)

Habitus Fig. 5 . Length 0.89–0.90 mm. Colour: dark brown, head and pronotum slightly darker than elytra, antennae and legs dusky yellow. Antennomeres 3–11 Fig. 41 . Pronotum: length 0.25 mm, width 0.35 mm, finely and densely foveate, Figs. 58 , 62 . Elytra 0.55 mm long, 0.51 mm wide, foveae and pubescence as pronotum.

Male: aedeagus Fig. 90

Female: spermatheca Fig. 77

Etymology. Named after the Ranomafana National Park where the type specimen was collected.

Remarks. Differs from all other Dacrysoma by the dark colour, number and density of punctures on the pronotum, and by the form of the genitalia.

Type data. Holotype: ♂, Ranomafana N.P., RNF/13/2011, litter, sifting, Winkler app. extr. S.21˚15’13.5’’ E.47˚24’09.8’’, 16.iv.2011, L.S.Rahanitriniaina & R.Raveloson (BMNH). Paratypes: 9exs, same data as holotype (BMNH); 1 ex Ranomafana N.P., RNF/15/2011, litter, sifting, Winkler app. extr., S.21˚ 15’06.0’’ E.47˚24’31.0’’, 1197 m, 16.iv.2011, L.S.Rahanitriniaina & R.Raveloson (BMNH).

Figures

FIGURES 1 – 8. Habitus. 1, Discheramocephalus bisulcatus; 2, D. vasilii; 3, Cissidium banari ♀; 4, C. banari ♂; 5, Dacrysoma ranomafanense; 6, D. varium; 7, D. denticulatum; 8, D. fusum.

FIGURES 41 – 55. Dacrysoma spp. antennomeres 3 – 11 (hairs omitted). 41, D. ranomafanense; 42, D. varium; 43, D. denticulatum; 44, D. ravelosoni; 45, D. rahanitriniainae; 46, D. dolorosum; 47, D. nigerrimum; 48, D. fabrum; 49, D. imitatum; 50, D. longulum; 51, D. subinsulsum; 52, D. andasibense; 53, D. fusum; 54, D. pilosum; 55, D. delicatum.

FIGURES 56 – 61. Dacrysoma spp. pronota. 56, D. ravelosoni (x 515); 57, D. nigerrimum (x 530); 58, D. ranomafanense (x 555); 59, D. fabrum (x 555); 60, D. varium (x 525); 61, D. rahanitriniainae (x 635).

FIGURES 62 – 76. Dacrysoma spp. pronota. 62, D. ranomafanense; 63, D. varium; 64, D. denticulatum; 65, D. ravelosoni; 66, D. rahanitriniainae; 67, D. dolorosum; 68, D. nigerrimum; 69, D. fabrum; 70, D. imitatum; 71, D. longulum; 72, D. subinsulsum; 73, D. andasibense; 74, D. fusum; 75, D. pilosum; 76, D. delicatum.

FIGURES 77 – 89. Dacrysoma spp. spermathecae. 77, D. ranomafanense; 78, D. varium; 79, D. delicatum; 80, D. denticulatum; 81, D. rahanitriniainae; 82, 83, D. ravelosoni; 84, D. pilosum; 85, D. nigerrimum; 86, D. fabrum; 87, D. andasibense; 88, D. imitatum; 89, D. subinsulsum.