Dryinus erraticus ( Turner, 1928 )

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 322-324

14. Dryinus erraticus ( Turner, 1928)

( Figs 128 B–G)

Neodryinus erraticus Turner 1928: 149 ; Benoit 1951b: 157.

Dryinus erraticus (Turner) : Carnegie 1975: 249; Guglielmino & Olmi 1997: 222; Olmi 2006: 42; 2009b: 458; Olmi et al. 2015: 358; 2016: 73.

Richardsidryinus erraticus (Turner) : Olmi 1984: 916; 1990b: 404.

Description. ♀. Fully winged; body length 3.4–6.0 mm. Head black, except mandible and clypeus yellow (in small specimen (3.4 mm) from Kenya, 3.82080°S 38.64178°E, head black, except mandible, clypeus and malar space testaceous); antenna testaceous, except antennomeres 7–9 or 3–7 slightly darkened (in specimen from Uganda, 0°33.823’N 30°21.490’E, antenna brown, except scape, pedicel and flagellomere 8 testaceous); propleuron black; pronotum black, with anterior margin, lateral regions and posterior collar reddish; mesosoma and petiole black; metasoma brown; legs testaceous-reddish, some× with coxae darkened. Antenna clavate; antennomeres in following proportions: 10:5:15:8:6:5:4.5:4:4:6. Head shiny, granulate, occasionally with some longitudinal keels on frons (in specimen from Kenya, 1.22328°S 36.89674°E, frons granulated and partly rugose); occipital carina complete; POL = 3.5; OL = 3; OOL = 7; OPL = 2; TL = 7. In specimens from South Africa, 33°16.84’S 24°22.78’E, and Kenya, 0.97984°N 37.34599°E, lateral ocelli very close to occipital carina (almost touching it). Pronotum ( Fig. 128B ) shiny, granulate, with longitudinal keels on lateral regions and on posterior transverse impression (in small specimens, above keels usually hardy visible or absent; in specimens from Namibia, 21°09.00’S 14°34.51’E, pronotum shiny and unsculptured, except longitudinal striae on lateral regions); pronotum crossed by slight anterior transverse impression and strong posterior transverse furrow. Mesoscutum dull, as sculptured as head, with posterior half reticulate rugose (occasionally in small specimens, mesoscutum completely rugose; in small specimen (3.4 mm) from Kenya, 3.82080°S 38.64178°E, mesoscutum granulate, except some areolae near posterior margin). Notauli incomplete, approximately reaching 0.5–0.7 × length of mesoscutum. In small specimen (3.4 mm) from Kenya, 3.82080°S 38.64178°E, notauli reaching about 0.9 × length of mesoscutum. Mesoscutellum dull, granulate. Metanotum rugose. Metapectal-propodeal disc ( Fig. 128G ) reticulate rugose; propodeal declivity reticulate rugose, without longitudinal keels. Forewing with three distinct brown transverse bands (rarely transverse bands hardly visible); distal part of 2rrs&Rs vein usually less than 3 × as long as proximal part (rarely distal part 3 × as long as proximal part). Protarsomere 1 about as long as 4; protarsomere 3 produced into hook. In small specimen (3.4 mm) from Kenya, 3.82080°S 38.64178°E, protarsomere 1 about twice as long as 4 (14:7.5). Enlarged claw with one small ( Fig. 128C ) or large ( Fig. 128D ) subdistal tooth and one row of 6–11 lamellae. Protarsomere 5 ( Figs 128C, D ) with two rows of 19–24 lamellae; apex with approximately 16 lamellae. Tibial spurs 1/1/1 (in holotype), or 1/1/2.

♂. Fully winged; body length 2.2–3.5 mm. Head black, except mandible yellow; antenna brown-yellow; meso- soma black; metasoma brown or testaceous; legs testaceous, except metacoxa partly brown. Antenna filiform; antennomeres in following proportions: 5:3:11:7:6:6:6:6:5:7. Head dull, granulate; occipital carina incomplete; temple absent; lateral ocelli almost touching occipital carina; POL = 7; OL = 2.5; OOL = 4; OPL = 1; TL = 3; greatest breadth of lateral ocelli longer than OPL (3:1). Mesoscutum dull, granulate, with slight keels near posterior margin. Notauli incomplete, reaching approximately 0.65–0.75 × length of mesoscutum. Mesoscutellum and metanotum granulate. Metapectal-propodeal disc reticulate rugose; propodeal declivity reticulate rugose, without longitudinal keels. Forewing hyaline, without dark transverse bands; distal part of 2r-rs&Rs vein longer than proximal part (12:9). Genitalia in Fig. 128E . Hypopygium in Fig. 128F . Tibial spurs 1/1/2.

Material examined. Types: ♀ holotype: SOUTH AFRICA: Western Cape, Mossel Bay, XI.1922, R.E. Turner leg. ( NHMUK). Paratypes: same locality label as holotype, X.1921, 1 ♀ ( NHMUK); same locality label as holotype, 18–30.XI.1921, 1♀ ( NHMUK); same locality label as holotype, VI–VII.1930, 1♂ allotype (not valid because des- ignated by Benoit (1951b) after the original description) ( NHMUK). Other material: ANGOLA: Namibe Province, 10 mi. NE Namibe (= Moçamedes), 27–29.II.1972, R. Giraul leg., 1♀ ( NHMUK). DEMOCRATIC REPUBLIC OF THE CONGO: North Kivu, Virunga National Park (=Albert National Park), Mt. Hoyo, 1♂ ( MRAC). ER- ITREA: Southern Red Sea Region, Asseb (= Assab), 1♀ ( HNHM). KENYA: Coast Prov., Kasigau Mtn., 3.82080°S 38.64178°E, 737 m, bottom of forest, MT, woodland with grass, 28.XII.2011 – 11.I.2012, R. Copeland leg., 1♀ ( RSC); Nairobi Prov., ICIPE Campus, Kasarani, 1.22328°S 36.89674°E, 1613 m, 17–24.II.2014, MT, near stream, meadow in degraded shrub-/grassland, R. Copeland leg., 1♀ ( NMK); Rift Valley Prov., Marich Pass field station, 1.53633°N 35.45800°E, 917 m, 20.III–4.IV.2005, MT, low canopy riverine forest, R. Copeland leg., 1♀ ( NMK); Rift Valley Prov., Nguruman, near Sampu River, 1.90117°S 36.05040°E, 723 m, 27.VIII–10.IX.2011, MT, near base of Nguruman Escarpment, R. Copeland leg., 1♀ ( NMK); Rift Valley Prov., Matthews Range, 0.97984°N 37.34599°E, 1459 m, 19.IV–3.V.2016, MT, riverine forest, near Wamba, R. Copeland leg., 1♀ ( NMK). MADAGASCAR: Antsiranana, Montagne d’Ambre National Park, 12°30’52’’S 49°10’53’’E, 960 m, 21–28.I.2001, MT, M.E. Irwin, E.I. Schlinger & R. Harin’Hala leg., MA– 01–01–01, 1♀ ( CAS); Mahajanga, Maintirano District, Asondrodava dry forest, 15 km N of Maintirano, 17°57.92’S 44°2.13’E, 200 ft., 10–17.XII.2007, MT, dry forest, M. Irwin, R. Harin’Hala leg., MG–43A–101, 1♀ ( CAS); same locality label, 14–21.I.2008, MG–43A–15, 1♀ ( MOLC); Toliara, Andohahela Na- tional Park, Ihazofotsy Parcelle III, 24°49.85’S 46°32.17’E, 80 m, 20.V–3.VI.2003, MT, dry spiny forest, M. Irwin, F. Parker & R. Harin’Hala leg., MA– 02–21–20, 1♀ ( CAS); Toliara, Andohahela National Park, Ihazofotsy Parcelle III, 24°50.09’S 46°29.21’E, 80 m, 21–29.VI.2003, MT, dry spiny forest, M. Irwin, F. Parker & R. Harin’Hala leg., MA– 02–21–23, 1♀ ( CAS). NAMIBIA: Brandberg, Königstein, 21°09.00’S 14°34.51’E, 2470 m, 11–14.IV.1999, NA99–M08, MT, Bushy Karoo-Namib shrubland, S. van Noort & S.G. Compton leg., 1♀ ( SMWN); Brandberg, Wasserfallfläche, 21°10.77’S 14°32.87’E, 1960 m, 7–10.IV.1999, NA99–M06, MT, Bushy Karoo-Namib shrubland, S. van Noort & S.G. Compton leg., 1♀ ( SMWN). SOMALIA: Benadir, Afgoi, M. Olmi leg, 2♀♀ ( AMNH). SOUTH AFRICA: Eastern Cape, 6 km N Steytlerville, 33°16.84’S 24°22.78’E, 500 m, 16–23.XI.1999, M.E. Irwin et al. leg., SA–05, 1♀ ( CNC); KwaZulu-Natal: Mt. Edgecombe, 27.I.1970, 5.III.1970, A. Carnegie leg., 4♀♀, 4 ♂♂ ( NHMUK); same locality label, many specimens of both sexes ( SASAES, 9 in AMNH); KwaZulu-Natal, Pongola, 1♀, 1♂ ( SASAES); Limpopo, Ellisras Distric, Mogol Nature Reserve, 1♀ ( SANC). SWAZILAND: Big Bend, 1♀ ( AMNH); Swaziland, 13.IX.1965, reared from Numicia viridis Muir, C.I.E. 4382, no collector ( NHMUK). TAN- ZANIA: Mkomazi Game Reserve, Ibaya Camp, 03°58’S 37°48’E, 29.I–11.III.1996, Acacia / Commiphora / Combretum bushland, MT, SAM–HYM–PO15605, S. van Noort leg., 1♀ ( SAMC); Mkomazi Game Reserve, Ibaya Camp, 03°58’S 37°48’E, 25.XII.1995 – 29.I.1996, Acacia / Commiphora / Combretum bushland, MT, SAM–HYM– PO15906, S. van Noort leg., 2♀♀ ( SAMC). UGANDA: Kibale National Park, Kanyawara, Makerere University Biological Field Station, 0°33.823’N 30°21.490’E, 1505 m, 4–26.VIII.2008, YPT, primary mid–altitude rainforest, S. van Noort leg., 1♀ ( SAMC). ZIMBABWE: Harare (= Salisbury), Chishawasha, VIII.1979, A. Watsham leg., 1♀ ( NHMUK); Harare (= Salisbury), IV.1975, 1 ♀ ( NHMUK).

Hosts. Tropiduchidae ( Guglielmino et al. 2013) : in South Africa and Swaziland: Numicia viridis Muir.

Distribution. Angola, Democratic Republic of the Congo, Eritrea, Kenya, Madagascar, Namibia, Somalia, South Africa, Swaziland, Tanzania, Uganda, Zimbabwe.

Figures

FIGURE 128. A: Dryinus erenianus Olmi, Copeland & van Noort sp. nov., chela of holotype. B–G: Dryinus erraticus (Turner): prothorax of ♀ holotype in lateral view (B); chelae of holotype (C) and ♀ from Namibia, Brandberg (D); genitalia (E) and hypo- pygium (F) of ♂ from South Africa, Mt. Edgecombe; metapectal-propodeal disc + propodeal declivity of ♀ holotype in lateral view (G). Scale bar: A: 0.14 mm; B: 0.48 mm; C: 0.12 mm; D: 0.10 mm; E, F: 0.09 mm; G: 0.50 mm.