Anteon sakalavense Olmi, Copeland & van Noort, 2019

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 190-191

82. Anteon sakalavense Olmi, Copeland & van Noort , sp. nov.

( Figs 70A , 72B , 73 )

Diagnosis. Macropterous ♀ of Anteon with propodeal declivity with two incomplete longitudinal keels, reaching about 0.5 × length of propodeal declivity; protarsomere 4 longer than basal part of 5; protarsomere 5 ( Fig. 70A ) with inner side curvilinear, with distal region distinct from median and proximal regions, with basal part much shorter than apical part.

Description. ♀ ( Figs 72B , 73 ). Fully winged; body length 2.3 mm. Head ferruginous-dark; antenna testaceous; mesosoma ferruginous-dark, except metapectal-propodeal disc black; petiole black; metasoma brown-testaceous; legs testaceous. Antenna clavate; antennomeres in following proportions: 11:6:8:5:4:5:5:5:5:7. Head ( Fig. 73C ) dull, sculptured by many slightly irregular keels; frontal line complete; frons with two slight lateral keels near orbits directed towards antennal toruli; occipital carina complete; POL = 4; OL = 4; OOL = 3; OPL = 4; TL = 6; greatest breadth of lateral ocelli shorter than OPL (2.5:4). Pronotum flat, shiny, sculptured by many very slight transverse striae, with anterior surface very short, shorter than posterior surface (2:11); posterior surface shorter than mesoscutum (11:14), with anterior and lateral margins sharp; pronotal tubercle reaching tegula. Mesoscutum, mesoscutellum and metanotum shiny, unsculptured ( Fig. 73A ). Notauli incomplete, reaching approximately 0.6 × length of mesoscutum. Metapectal-propodeal disc with strong transverse posterior keel, reticulate rugose; propodeal declivity reticulate rugose, with two incomplete longitudinal keels reaching about 0.5 × length of propodeal declivity. Forewing ( Fig. 73D ) with one small dark spot around 2r-rs&Rs vein; distal part of 2r-rs&Rs vein shorter than proximal part (4.5:9). Protarsomeres in following proportions: 6:2:4:9:18. Protarsomere 2 produced into hook. Protarsomere 4 longer than basal part of 5. Enlarged claw ( Fig. 70A ) with proximal prominence bearing one long bristle. Protarsomere 5 ( Fig. 70A ) with inner side curvilinear, with distal region distinct from median and proximal regions, with basal part much shorter than apical part, with one row of 33 lamellae; apex with about 9 lamellae. Tibial spurs 1/1/2.

♂. Unknown.

Material examined. Type: ♀ holotype (CASTYPE19445): MADAGASCAR: Antsiranana, Sakalava Beach , 12°15.46’S 49°23.51’E, 10 m, 15.II–6.III.2001, dwarf littoral forest, MT, across sandy trail, MA-01-04B-03, M.E .

Irwin & R. Harin’Hala leg., 1♀ (CAS).

Hosts. Unknown.

Distribution. Madagascar.

Etymology. The species is named sakalavense after the collection site in Sakalava Beach.

Figures

FIGURE 70. Chelae of Anteon species holotypes. A: A. sakalavense Olmi, Copeland & van Noort sp. nov.; B: A. shimbanum Olmi; C: A. simoni Olmi; D: A. taylori Olmi; E: A. tetense Olmi. Scale bar:A: 0.05 mm; B: 0.09 mm; C: 0.06 mm; D: 0.07 mm; E: 0.10 mm.

FIGURE 72. Habitus of Anteon species. A: A. pseudohova Olmi, Copeland & van Noort sp. nov., ♀ holotype in dorsal view; head vertex and mesoscutum sculpture; B: A. sakalavense Olmi, Copeland & van Noort sp. nov., ♀ holotype in dorsal view; head vertex, pronotum and mesoscutum sculpture; C–E: A. semajanna Olmi, Copeland & Guglielmino: C,D: ♂ holotype in dorsal (C) and lateral (D) view; E, F: ♂ paratype: head and mesosoma (E); head in frontal view (F). Scale bar: B: 2.82 mm.

FIGURE 73. Anteon sakalavense Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); forewing (D).