Bocchus nigroflavus 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 : 287-288

22. Bocchus nigroflavus Olmi, Copeland & van Noort , sp. nov.

( Figs 110D , 111 , 112C )

Diagnosis. Macropterous ♀ of Bocchus with head mostly yellow-testaceous and completely granulate ( Fig. 112C ); OPL about twice as long as OOL; mesoscutum granulate; forewing hyaline, without dark transverse bands or spots; enlarged claw with long row of teeth ( Fig. 110D ).

Description. ♀ ( Figs 111 , 112C ). Fully winged; body length 2.3 mm. Head yellow-testaceous, except black margins of ocelli; antenna whitish; mesosoma black; petiole yellow; metasoma brown; legs yellow-testaceous. Antenna clavate, short, with antennomeres 5–9 longer than broad; antennomeres in following proportions: 9:4:6:4:4:4:4:3:3:5. Head ( Fig. 111C ) convex, dull, completely granulate, not rugose; frontal line complete; occipital carina complete; POL = 3; OL = 4; OOL = 3; OPL = 6; TL = 6; greatest breadth of lateral ocelli shorter than OL (2:4). Pronotum crossed by strong transverse impression, dull, granulate; pronotal tubercle reaching tegula. Mesoscutum ( Fig. 111A ) dull, completely granulate. Notauli complete, posteriorly separated; minimum distance between notauli much longer than breadth of lateral ocelli (7:2). Mesoscutellum slightly swollen, shiny, slightly granulate. Metanotum shiny, unsculptured. Mesopleuron dull, granulate. Metapleuron dull, sculptured by numerous strong transverse keels. Metapectal-propodeal disc with strong transverse posterior keel, dull, rugose, with few very large areolae (inner surface of areolae slightly rugose); propodeal declivity dull, with two complete longitudinal keels, median area transversely striate and lateral areas reticulate rugose. Forewing ( Fig. 111D ) hyaline, without dark transverse bands or spots; distal part of 2r-rs&Rs vein shorter than proximal part (5:8); 2R1 cell open. Petiole long, much shorter than metasoma (13:41). Protarsomeres in following proportions: 10:3:3:8:11. Enlarged claw ( Fig. 110D ) with one row of 5 teeth and 1 bristle. Protarsomere 5 ( Fig. 110D ) with one preapical lamella, 3 bristles and medial prominence. Tibial spurs 1, 1, 2 (one of the two spurs of the hind tibiae is shorter).

♂. Unknown.

Material examined. Type: ♀ holotype (CASTYPE19450): MADAGASCAR: Antsiranana, Orangea , 3 km E of Ramena near fort, 12°14.49’S 49°22.17’E, 65 m, 23–27.I.2001, MT, littoral forest on sand, MA- 01-05-02, M.E. Irwin, E.I. Schlinger & R. Harin’Hala leg. (CAS) .

Hosts. Unknown.

Distribution. Madagascar.

Etymology. The new species is named nigroflavus, a Latin adjective meaning partly black and partly yellow- testaceous (head mostly yellow-testaceous; mesosoma black).

Figures

FIGURE 110. Chelae of Bocchus species holotypes. A: B. krombeini Olmi. B: B. martellii Olmi. C: B. niger Olmi. D: B. nigroflavus Olmi, Copeland & van Noort sp. nov. E: B. piceus Olmi. F: B. rassitus Olmi & van Harten. Scale bar: A, D, F: 0.06 mm; B: 0.08 mm; C: 0.09 mm; E: 0.12 mm.

FIGURE 111. Bocchus nigroflavus Olmi, Copeland & van Noort sp. nov., ♀ holotype: habitus in dorsal (A) and lateral (B) view; head in frontal view (C); forewing (D).

FIGURE 112. Habitus of Bocchus species holotypes.A: B. martellii Olmi. B: B. niger Olmi. C: B. nigroflavus Olmi, Copeland & van Noort sp. nov.; head vertex and mesoscutum sculpture. D: B. parkeri Olmi, Copeland & van Noort sp. nov.; head vertex and mesoscutum sculpture. Scale bar: A: 2.31 mm.