Dacrysoma delicatum, 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 : 266

Dacrysoma delicatum sp. n.

(Figs. 17, 55, 76, 79)

Habitus Fig. 17. Length 0.78 mm. Colour dusky yellow, antennae and legs paler yellow. Antennae short, antennomeres 3–11 Fig. 55 . Pronotum 0.20 mm long, 0.30 mm wide, lateral margins slightly pointed, Fig. 76 , closely punctured, +/-9 punctures between anterior and posterior margins. Elytra 0.54 mm long, 0.44 mm wide, more finely punctured than pronotum, pubescence as pronotum.

Female: spermatheca Fig. 79 .

Male: not known.

Etymology. This epithet is taken from the Latin adjective delicatus, meaning soft or tender, and refers to the delicate appearance of this species.

Remarks. The closely punctured pronotum and form of the spermatheca should be sufficient to distinguish this species.

Type data. Holotype: ♀, Andasibe N.P. border, ASB/ Nov.2011, Feon’ny Ala Hotel surr., sifting leaf litter, Winkler app. extraction, 27.ix–3.xii, L.S.Rahanitriniaina (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.