Gonatopus ridens Olmi, 1984

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 532-534

109. Gonatopus ridens Olmi, 1984

( Figs 220F , 235D , 239B )

Gonatopus ridens Olmi 1984: 1607 ; 1994a: 74; 2004a: 362; 2006: 50; Guglielmino & Olmi 2006: 47; 2007: 126.

Description. ♀. Apterous; body length 2.5–3.0 mm. Head testaceous-reddish; antenna brown, except scape, pedicel and part of flagellomere 1 yellow, flagellomeres 7–8 and partly 6 whitish; pronotum brown-reddish; mesoscutum yellow, except anterior margin brown; rest of mesosoma black, except distal extremity of propodeal declivity reddish; petiole black; metasoma brown-reddish; legs testaceous. In very dark specimen from Mozambique, Cuamba, head with large black band on vertex; antenna black, except scape and pedicel testaceous and flagellomere 8 whitish; propleuron brown; pronotum black; legs testaceous, except femora darkened. In specimen from Madagascar, antenna brown, except scape and pedicel testaceous and flagellomere 8 whitish. Head ( Fig. 239B ) excavated, shiny, unsculptured; temple prominent. POL = 4; OL = 4; OOL = 15. Palpal formula 5/2. Pronotum shiny, setose, unsculptured, crossed by strong transverse impression. Mesoscutum shiny, with some longitudinal keels. Metanotum, mesopleuron and metapleuron transversely striate. Metapectal-propodeal disc shiny, unsculptured; propodeal declivity transversely striate. Meso-metapleural suture obsolete. Protarsomere 1 slightly shorter than 4 (10:11). Enlarged claw ( Fig. 235D ) with one small subapical tooth and one row of seven peg-like setae. Protarsomere 5 ( Fig. 235D ) with inner side proximally not serrate, with one row of 15–19 lamellae; apex with at least 12 lamellae. Tibial spurs 1/0/1.

♂. Fully winged; body length 1.1–1.9 mm. Head black, except mandible testaceous; antenna brown; mesosoma and metasoma black; legs brown, except tarsi, protibia and stalk of profemur testaceous. Antenna setose, filiform; antennomeres of specimen from Mozambique, Cuamba, in following proportions: 4:4:5:4:4.5:4.5:4:4.5:4:6.5; antennomeres of specimen from South Africa, Blue Mountain Ranch Bed & Breakfast, in following proportions: 5:4: 5:5:4.5:4.5:4.5:4:4:6. Antennomere 3 less than 3 × as long as broad: 5: 1.7 in specimen from Mozambique, Cuamba; 5: 2.3 in specimen from South Africa, Blue Mountain Ranch Bed & Breakfast. Head dull, granulate; frontal line absent; occipital carina absent; in ♂ specimen from Mozambique, Cuamba, POL = 5; OL = 2; OOL = 4; in ♂ specimen from South Africa, Blue Mountain Ranch Bed & Breakfast, POL = 5; OL = 3; OOL = 4. Vertex of head with two oval smooth and shiny areas situated between lateral ocelli and eyes (areas anteriorly and posteriorly surrounded by carina, anterior carina being much higher. Temple distinct, crossed by sharp carina parallel to posterior margin of eyes. Palpal formula 4/2. Mesoscutum dull, granulate; notauli complete, posteriorly separated. In specimen from Mozambique, Cuamba, minimum distance between notauli less than 0.5 × as long as greatest breadth of lateral ocelli (0.5:1.5). In specimen from South Africa, Blue Mountain Ranch Bed & Breakfast, minimum distance between notauli shorter than greatest breadth of lateral ocelli (1.5:2.0). Mesoscutellum shiny, weakly granulate. Metanotum shiny, unsculptured. Metapectal-propodeal disc dull, completely reticulate rugose; areolae of metapectal-propodeal disc small; propodeal declivity without longitudinal or transverse keels. Forewing hyaline, without dark transverse bands, with only costal cell surrounded by well pigmented veins (other basal cells surrounded by obsolete veins); 2R1 cell open; 2r-rs&Rs vein regularly curved, with distal part longer than proximal part (approximately 9:7). Dorsal process of paramere ( Fig. 220F ) short and slender, with apex pointed. Tibial spurs 1/1/2.

Material examined. Type: ♀ holotype: SOUTH AFRICA: Western Cape, Mossel Bay , I.1922 , R.E. Turner leg. ( NHMUK). Other material: JUAN DE NOVA ISLAND ( FRANCE; in Mozambique Channel): East Point , 17.06182 S, 42.72513 E, 10 m, 12.IV.2011 , ex used bird nest in littoral verge, B.L. Fisher leg., BLF26478 , 1♀ ( CAS). MOZAMBIQUE: Maputo Prov., Maputo , 1♀ ( AMNH); Maputo Prov., Maputo race-course , 1♀ ( AMNH); Niassa, Cuamba , reared from Aconurella aethiopica (Cogan) , C. 8.XI.1999 , B. 10.XI.1999, Sf. 27.XI.1999 , 1♀ ( MOLC); same locality label, C. 8.XI.1999 , B. 11.XI.1999, Sf. 2.XII.1999 , 1♂ ( MOLC); same locality label, C. 8.XI.1999 , B. 12.XI.1999, Sf. 2.XII.1999 , 1♂ ( MOLC); same locality label, C. 8.XI.1999 , B. 9.XI.1999, Sf. 1.XII.1999 , 1♂ ( MOLC); same locality label, C. 8.XI.1999 , B. 10.XI.1999, Sf. 1.XII.1999 , 1♂ ( MOLC); same locality label, reared from Aconurella shaba Ghauri, C. 22.III.2003 , B. 24.III.2003, Sf. 14.IV.2003 , 3♂♂ (2 in MOLC, 1 in SAM); Niassa, Maúa, C. 10.XI.1999 , B. 14.XI.1999, Sf. 10.XII.1999 , 1♂ ( MOLC). SOUTH AFRICA: Eastern Cape, Februarie Farm , 40.2 km 267° W Kirkwood, 33°33.124’S 25°03.043’E, 10–17.II.2001 , Winkler, Valley Bushveld (non-trashed), H.G. Robertson & R. Tourle leg. , 1♀ ( SAMC); Western Cape, near George, N 12- Road to Montagu Pass junction, reared from unidentified Cicadellid, C. 25.I.2003 , B. 29.I.2003, Sf. 19.II.2003 , M. Olmi leg., 1♀ ( SAMC); Western Cape, near Swellendam , Marloth Nature Reserve, C. 29.I.2003 , B. 7.II.2003, Sf. 27.II.2003 , M. Olmi reared from Recilia lobata (Linnavuori) , 1♀ ( MOLC); Western Cape, Swellendam, Blue Mountain Ranch Bed & Breakfast, C. 29.I.2003 , B. 6.II.2003, Sf. 25.II.2003 , M. Olmi reared from Aconurella aethiopica (Cogan) , 1♂ ( MOLC), same locality label, 16.II.2006 , M. Olmi reared from Aconurella aethiopica (Cogan) , 1♂ ( MOLC); Western Cape, near Citrusdal , The Baths, C. 22.I.2003 , B. 30.I.2003, M. Olmi reared from unidentified Cicadellid, 1♀ ( MOLC) .

Hosts. Cicadellidae ( Guglielmino et al. 2013) : in Mozambique: Aconurella aethiopica (Cogan) and Aconurella shaba Ghauri; in South Africa: Aconurella aethiopica (Cogan); Maiestas lobata (Linnavuori) (= Recilia lobata (Linnavuori)).

Distribution. Juan de Nova Island, Mozambique, South Africa.

Figures

FIGURE 220. ♂ genitalia of Gonatopus species. A: G. guigliae (Benoit): ♂ from Mozambique, Catembe: dorsal process of paramere. B, C: G. incognitus Olmi: ♂s from Nigeria, Ibadan (B), and Tanzania, Pongwe (C). D: G. koebergensis Olmi, Cope- land & van Noort sp. nov.: ♂ paratype. E: G. okahandjae Olmi: ♂ from the Cape Verde Islands, São Jorge dos Orgãos. F: G. ridens Olmi: ♂ from South Africa, Blue Mountain Ranch Bed & Breakfast. Scale bar: A, C, F: 0.06 mm; B: 0.08 mm; D: 0.17 mm; E: 0.09 mm.

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 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.