Progonatocerus albiclava Huber, sp. n.

(Figs 221–231, 238–247)

Type material. Holotype ♀ (CNC), on slide (Fig. 224) labelled: 1. “ Malaysia: Sabah, Danum Valley, 18.vii.86 – 18.i.1987, M. Still” 2. “ Holotype Progonatocerus albiclava Huber ♀”.

Paratypes. 14 ♀, 1 ♂. MALAYSIA. Sabah. Same data as holotype (14 ♀, 1 ♂, CNC, UCRC, BMNH).

Diagnosis. Clava pale yellow, fl4 with 2 mps, gt3–gt6 with well-defined oval brown spot separated by almost white line from brown lateral area (Fig. 221); ovipositor sheaths at least 1.1× as long as metatibia and originating at about 0.15× its length from apex of petiole.

Description. FEMALE. Body length 1024–1152 (n=10). Colour. Head except trabeculae, scape except radicle, pedicel ventrally, mesosoma, and legs except pretarsi dark yellow; pedicel dorsally, flagellum except sometimes fl1, trabeculae, pretarsi, and gt3–gt6 dorsomedially and laterally dark brown (gaster dorsally with welldefined oval brown spot); radicle, and gaster ventrally, basally and dorsolaterally from gt3 to posterior apex pale yellow to almost white. Head. Head (Figs 221, 222, 238) width 368 (n=1). Antenna. Funicle segments fl4–fl8 each with 2 mps (Fig. 226). Antennal measurements (n=3) length/width (ratios of funicle segments): scape 414–436/48– 58, pedicel 74–87/44–46, fl1 ~50–63/33–38 (~1.33–1.80), fl2 59–68/33–36 (1.63–2.22), fl3 70–80/32–36 (2.02– 2.21), fl4 82–85/36–38 (2.23–2.31), fl5 85–90/34–39 (2.23–2.48), fl6 84–86/33–42 (1.99–2.61), fl7 86–90/40–47 (2.04–2.17), fl8 85–90/45–52 (1.66–1.97), clava 322–334/79–88. Mesosoma. As in generic description (Figs 227, 228, 242, 243). Wings. Fore wing (Fig. 225) length (n=3 1359–1380), width 327–329, length/width 4.01–4.22, longest marginal setae 95–106. Hind wing length 1061–1088, width 33–36, longest marginal setae 124–135. Metasoma. Ovipositor sheath length 534–548 (n=3) distinctly longer than metatibia length (462–484) and slightly exserted beyond apex of gaster (Figs 229–231), with 1 apical seta.

MALE. Colour. Body as in female except flagellum and gaster from gt3 to apex brown. Body length 1175 (n=1). Antenna. Measurements (n=1, card mount): scape length/width 150/50, pedicel length/width 60/45, flagellar segments length: fl1 140, fl2 180, fl3 180, fl4 180, fl5 180, fl6 180, fl7 160, fl8 160, fl9 160, fl10 160, fl11 160; total flagellar length 1840; fl6 length/width 4.5, with about 8 mps. Metasoma. Genitalia not examined (slide of unique male not prepared).

Etymology. The species name is a Latin adjective for white, referring to the colour of the clava.