Gonatopus rugithorax 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 : 536-538

111. Gonatopus rugithorax Olmi, Copeland & van Noort , sp. nov.

( Figs 235G , 236A , 237 , 239D, E )

Diagnosis. Apterous ♀ of Gonatopus with palpal formula 6/3; temple without sharp carina; mesosoma black; pronotum crossed by strong transverse furrow; mesoscutum less than twice as long as broad, with two lateral pointed apophyses; mesopleuron without lateral pointed apophyses; metanotum deeply excavated behind mesoscutellum, with sides rounded (metapectal-propodeal disc fusiform); meso-metapleural suture distinct and complete; metapectal-propodeal disc without strong median furrow, only with slight track of median furrow, sculptured by some longitudinal keels; protarsomere 1 slightly shorter than 4; enlarged claw ( Figs 235G , 236A ) with one small subapical tooth, situated very far from apex, and proximal peg-like setae.

Description. ♀ ( Fig. 237 ). Apterous; body length 2.5–3.0 mm. Head black, except mandible, clypeus and malar space (with stripe along orbits) testaceous; antenna brown, except ventral side of antennomere 1 whitish; mesosoma black; metasoma and legs brown. Paratypes with head black, except mandible, clypeus and anterior surface of frons testaceous; mesosoma black, except part of prothorax, part of mesoscutum and metanotum testaceous-brown. Head excavated, dull, granulate; frontal line complete; occipital carina absent; POL = 1.5; OL = 2; OOL = 8. Palpal formu- la 6/3. Pronotum crossed by strong transverse furrow, shiny, slightly granulate (unsculptured in paratypes). Mesos- cutum shiny, with some longitudinal keels, with two lateral pointed apophyses ( Fig. 239D ). Mesoscutellum sloping anteriorly. Metanotum excavated behind mesoscutellum ( Fig. 239E ), not protruding laterally. Metapectal-propodeal disc fusiform, dull, granulate, sculptured by some longitudinal irregular keels, with slight median longitudinal fur- row; propodeal declivity strongly transversely striate. Paratypes with metapectal-propodeal disc shiny, sculptured by longitudinal striae, unsculptured among striae. Mesopleuron slightly granulate, not transversely striate. Meta- pleuron strongly transversely striate. Meso-metapleural suture distinct and complete, step shaped. Protarsomeres in following proportions: 12:2.5:4:5:14:22. Enlarged claw ( Figs 235G , 236A ) with one small subapical tooth and two proximal peg-like setae + 1–2 bristles. Protarsomere 5 ( Figs 235G , 236A ) with inner side proximally not serrate and two rows of 3–4 (proximal) + 17–18 lamellae; apex with about 15 lamellae. Tibial spurs 1/0/1.

♂. Unknown.

Material examined. Types: ♀ holotype: SOUTH AFRICA: Northern Cape, Nieuwoudtville, Hantam National Botanical Garden, 31°24.841’S 19°09.551’E, 797 m, 27.X.2009 – 9.II.2010, MT, Nieuwoudtville Dolerite, Koppie Renosterveld, S. van Noort leg., SAM-HYM-A 022243 ( SAMC) . Paratypes: SOUTH AFRICA: Northern Cape, Swaarweerberg , Vredehoek Farm , 32°26.387’S 20°34.501’E, 1613 m, 28.X.2009 – 9.II.2010, MT, Succulent Karoo, S. van Noort leg., SAM-HYM-A023397 , 1♀ ( SAMC); same locality label , 1♀ MOLC); same locality label,

9.II–31.III.2010, SAM-HYM-A 022710, 1♀ ( SAMC); Northern Cape, Sterboom Farm , 32°36.794’S 20°44.660’E, 1599 m, 28.X.2009 – 9.II.2010, MT, Succulent Karoo, S. van Noort leg., SAM-HYM-A 022705 , 1♀ ( SAMC) .

Hosts. Unknown.

Distribution. South Africa.

Etymology. The species is named rugithorax , because of the rugose aspect of its thorax.

Figures

FIGURE 235. Chelae of Gonatopus species. A: G. paulyanus Olmi, holotype. B: G. pilosipes Brues, holotype. C: G. ranoma- fanensis Olmi, Copeland & van Noort sp. nov.: holotype. D: G. ridens Olmi, holotype. E, F: G. rubrithorax (Benoit): ♀♀ from Madagascar, Bereboka (E) and Berenty (F). G: G. rugithorax Olmi, Copeland & van Noort sp. nov., holotype. Scale bar:A: 0.13 mm; B: 0.14 mm; C: 0.07 mm; D, F, G: 0.06 mm; E: 0.08 mm.

FIGURE 236. Chelae of Gonatopus species. A: G. rugithorax Olmi, Copeland & van Noort sp. nov., ♀ from South Africa, Sterboom Farm. B: G. savanensis Olmi, holotype. C: G. schierli Olmi, holotype. D: G. sensitivus Olmi, holotype. E: G. seyrigi (Benoit), holotype. F: G. shoanus Ponomarenko & Olmi, holotype. Scale bar: A, C, F: 0.06 mm; B: 0.18 mm; D: 0.08 mm; E: 0.11 mm.

FIGURE 237. Gonatopus rugithorax Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); chela (D).

FIGURE 239. Gonatopus species: ♀ holotypes. A: G. ranomafanensis Olmi, Copeland & van Noort sp. nov.: mesosoma in lateral view. B: G. ridens Olmi: head in dorsal view. C: G. rubrithorax (Benoit): head in dorsal view. D, E: G. rugithorax Olmi, Copeland & van Noort sp. nov.: mesoscutum + mesoscutellum + metapectal-propodeal disc + propodeal declivity in dorsal view (D); mesosoma in lateral view (E). F: G. savanensis Olmi: mesosoma in lateral view. G–I: G. schierli Olmi: head in frontal view (G); mesoscutum + mesoscutellum + metapectal-propodeal disc + propodeal declivity in dorsal view (H); mesosoma in lateral view (I). Scale bar: A: 1.14 mm; B, C: 0.26 mm; D: 0.60 mm; E: 0.88 mm; F: 1.96 mm; G: 0.25 mm; H: 0.69 mm; I: 1.01 mm.