Gonatopus nigropictus 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 : 525-526

101. Gonatopus nigropictus Olmi, Copeland & van Noort , sp. nov.

( Figs 227 , 230 C, D , 234 B )

Diagnosis. Apterous ♀ of Gonatopus with palpal formula 6/3; temple without sharp carina; mesosoma black; pro- notum crossed by strong transverse furrow; mesoscutum less than twice as long as broad, laterally with two strong pointed apophyses; mesopleuron without lateral pointed prominence; metanotum deeply excavated behind mesos- cutellum; meso-metapleural suture distinct and complete; metapectal-propodeal disc without strong median furrow; protarsomere 1 as long as 4; enlarged claw ( Fig. 234B ) long, straight and slender, with one small subapical tooth and one row of peg-like setae; subapical tooth of enlarged claw situated very near apex ( Fig. 234B ).

Description. ♀ ( Fig. 227 ). Apterous; body length 2.9–4.4 mm. Head black, except mandible, clypeus, malar space and two short stripes along orbits testaceous; antenna brown-testaceous; mesosoma black; metasoma brown; legs testaceous, except coxae partly brown and clubs of femora brown. In specimens from Democratic Republic of the Congo, 04°15’S 17°10’E, head brown, except mandible, clypeus, anterior half of frons testaceous; antenna brown-testaceous, except scape, pedicel and part of flagellomere 1 whitish; mesosoma black, except mesoscutum mostly testaceous; metasoma brown; legs brown, except coxae, trochanters and femora partly whitish; tarsi testaceous. Antenna clavate; antennomeres in following proportions: 7:6:12:8:5:5:4:4:4:6. Head excavated, shiny, with frons unsculptured; frontal line complete; occipital carina absent; POL = 1; OL = 1; OOL = 8; greatest breadth of lateral ocelli as long as POL. Palpal formula 6/3. Pronotum crossed by strong transverse furrow, shiny, unsculptured. Mesoscutum shiny, unsculptured, laterally with two strong pointed apophyses situated at border of mesoscutellum ( Fig. 230C ). Mesoscutellum shiny, smooth, sloping anteriorly. Metanotum rugose, deeply excavated behind mesoscutellum ( Fig. 230D ). Metapectal-propodeal disc shiny, unsculptured; propodeal declivity sculptured by numerous transverse striae. Mesopleuron partly unsculptured and partly slightly transversely striate. Metapleuron transversely striate. Meso-metapleural suture distinct and complete. Protarsomeres in following proportions: 14:2:3:14:18. Enlarged claw ( Fig. 234B ) with one small subapical tooth and one row of 6–9 peg-like setae + one bristle. Protarsomere 5 ( Fig. 234B ) with two rows of 1–2 (long and proximal) + 15–18 lamellae; apex with 6–8 lamellae. Tibial spurs 1/0/1.

♂. Unknown.

Material examined. Type: ♀ holotype: SOUTH AFRICA: Northern Cape, West Driefontein farm, Succulent Karoo 1 Site , 13.1 km 106° ESE Nieuwoudtville, 31°22.178’S 19°15.064’E, 16.X.2000, sweep, Succulent Karoo on shales, S. van Noort leg., SAM-HYM-A 022692 ( SAMC) . Paratypes: DEMOCRATIC REPUBLIC OF THE CON- GO: Haut-Uele, Wamba Territory, Kikongo Mission, 04°15’S 17°10’E, 6.IV.2006, forest pantrap, S.L. Heydon & S.E. Stevenson leg. , 1♀ ( MOLC); same locality label, 30.III.2006, forest pantrap , 1♀ ( DEUCD). SOUTH AFRICA:

Northern Cape, 30 km N of Calvinia, Kelkiewyn Farm , 31°12.923’S 19°40.812’E, 762 m, 29.IX–30.XII.2010, YPT, Hantam Succulent Karoo, KEL09-SUC1-Y07, 1♂ ( MOLC) .

Hosts. Unknown.

Distribution. Democratic Republic of the Congo, South Africa.

Etymology. The species is named nigropictus , because of its mostly black colour.

Figures

FIGURE 227. Gonatopus nigropictus Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); chela (D).

FIGURE 230. Gonatopus species.A: G. mirus Olmi & van Harten, ♀ holotype: mesosoma in lateral view. B: G. mosseli Olmi, ♀ holotype: head in dorsal view. C, D: G. nigropictus Olmi, Copeland & van Noort sp. nov., ♀ holotype: mesosoma in dorsal (C) and lateral (D) view.E–G: G. okahandjae Olmi: head of ♀ from Namibia, 27.6 km S Omaruru, in frontal view (E); mesos- cutum + mesoscutellum + metapectal-propodeal disc + propodeal declivity of ♀ holotype in dorsal (F) and lateral (G) view. H: G. pilosipes Brues, ♀ holotype: head in frontal view. I: G. ranomafanensis Olmi, Copeland & van Noort sp. nov., ♀ holotype: mesoscutum + mesoscutellum + metapectal-propodeal disc + propodeal declivity in dorsal view. Scale bar:A: 1.23 mm; B: 0.31 mm; C, D: 0.98 mm; E: 0.24 mm; F, G, I: 0.78 mm; H: 0.47 mm.

FIGURE 234. Chelae of Gonatopus species holotypes. A: G. natalensis Olmi. B: G. nigropictus Olmi, Copeland & van Noort sp. nov. C: G. okahandjae Olmi. D: G. omanensis Olmi. E: G. patrizii Benoit. F: G. operosus Olmi. Scale bar: A: 0.05 mm; B: 0.06 mm; C, D, E: 0.07 mm; F: 0.10 mm.