Dacrysoma subinsulsum

Darby, Michael, 2013, Studies of Madagascan Ptiliidae (Coleoptera) 1: The Tribe Discheramocephalini including eighteen new species, Zootaxa 3718 (3), pp. 239-266 : 261

Dacrysoma subinsulsum sp. n

(Figs. 18, 51, 72, 89, 100)

Habitus Fig. 18. Length. 0.77 mm. Colour: yellowish brown, antennae and legs yellow. Antennomeres 3–11 Fig.51 . Pronotum: 0.20 mm long, 0.26 mm wide, Fig.72 , +/- 7 punctures between anterior and posterior margins, Fig. 72 . Elytra: 0.47 mm long, 0.45 mm wide, more finely punctured than pronotum and pubescence shorter.

Male: aedeagus Fig. 100.

Female: spermatheca Fig. 89 .

Etymology. This epithet is taken from the Latin adjective subinsulsus, meaning somewhat insipid, and refers to the overall impression given by the insect’s appearance.

Remarks. The small size of the pronotum, short antennae, and the characters of the genitalia should serve to distinquish this species.

Type data. Holotype: ♀, Ranomafana N.P., RNF/13.2011, sifting litter, S. 21˚.14’ 57.9’’ E. 47˚ 24’ 22.90’’, 1138 m, 16.iv.2011, L.S.Rahanitriniaina & R. Raveloson (BMNH). Paratypes: 11 exs, Ranomafana N.P., sifting litter, Winkler app. extr., S. 21˚14’51.3’’ E.47˚24’09.1’’, 1118 m, 15.iv.2011, P. Banar & Raveloson (BMNH).

Figures

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 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.