Gollumiella darlingi, Heraty, John, 2004

Heraty, John, 2004, Three new species of Gollumiella Hedqvist (Hymenoptera: Eucharitidae), Zootaxa 497, pp. 1-10 : 8-9

Gollumiella darlingi new species ( Figs 9–11 )

Diagnosis. This species keys to G. longipetiolata in Heraty (1992), from which it can be differentiated by the short antennal flagellum (0.7–0.82 X height of head) and scape (0.7– 0.81 X distance to top of median ocellus), and whitish yellow mid and hind coxae. The short scape and evenly brown petiole distinguishes this species from G. buffingtoni .

Female. Length 1.5–2.0 mm. Dark brown; flagellum and pedicel pale brown; scape yellowish white to pale brown; mandibles yellowish brown; legs including coxae yellowish white, but with fore coxae pale (holotype) or dark brown basally; ovipositor and third valvulae pale brown; distal tarsomeres brown; petiole evenly brown. Wings hyaline.

Head rounded, 1.14–1.20 X as broad as high. POL 0.8–1.05 X OOL. Face rounded and smooth with scattered fine setae, genae slightly convex in frontal view, sunken adjacent to clypeus; occiput glabrous or very finely aciculate, dorsal angle with occiput abrupt and with a single transverse carina. Clypeal margin broadly convex apically and with scattered fine setae. Eyes separated by 1.3–1.4 X their height. Malar space 0.58–0.75 X height of eye. Labrum with 4 long digits. Antenna 10–11 segmented; scape slightly expanded medioventrally, not reaching median ocellus, length 0.71–0.81 X distance between torulus and upper margin of median ocellus; 7–8 funicular segments, FL1 and FL2 separated (holotype and some paratypes) or partially fused ( Fig. 11 ), combined length 3–3.2 X as long as broad, FL1 0.5–1.0 X as long as F2; flagellum 0.74–0.82 X height of head, setae of flagellum long, dense and semi­erect; clava tapering to acute point.

Mesosoma with rugose­alveolate sculpture, scutoscutellar sulcus deeply impressed and strongly carinate; scutellum as long as broad, frenal carina strongly developed and emarginate dorsally. Propleuron with one or two transverse carinae. Coxae smooth and semi­globose, hind coxa 1.5–2.0 X as long as broad; hind femur with few short inclinate setae laterally but mostly bare, tibia sparsely setose. Fore wing 2.3–2.6 X as long as broad ( Fig. 10 ), 3.1–3.2 X length of mesothorax; speculum open basally; veins well defined; submarginal vein dorsally with few minute setae basally but otherwise bare; stigmal vein 1.0–1.5 X as long as broad, and wider than apical group of sensilla ( Fig. 9 ); postmarginal vein poorly defined, usually 3.3–7.0 X as long as stigmal vein.

Petiole 2.3–2.7 X as long as hind coxa, 5.5–7.5 X as long as broad, linear in profile, irregularly longitudinally striate but with distal third mostly smooth. Hypopygium with 6 long hairs along apical margin. Dorsal valve of ovipositor broad and with a distinct median keel.

Male. Length 1.7–2.1 mm. Agrees with female except as follows: fore coxa evenly brown; eyes separated by 1.27 X their height; malar space 0.57 X height of eye; scape 1.08–1.31 X distance between torulus and upper margin of median ocellus; flagellum 0.69 X height of head; fore wing 2.9 X length of mesothorax; petiole 4.6 X as long as broad. Genitalia not examined.

Type Material. Holotype, Ψ, “ INDONESIA: W. Kalimantan Gunung Palung Nat. Pk. 15 JUN–15 AUG 1991 Darling, Sutrisno, Rosichon. IIS 910116 / Cabang Panti Res. Sta. 1° rainforest, 100–400m Sandstone — light trap 1°15’S, 110°05’E Malaise trap head / Ψ 34”, deposited in ROME, on loan from MZB. Paratypes: “ INDONESIA: Borneo, West Kalimantan, Gunung Palung Nat. Pk. 29 JUN 1991 DC Darling, Rosichon U. Sutrisno, IIS 910165 / Cabang Panti Res. Sta. 1° rainforest, 100–400m Alluvial. screen sweep 1°15’S, 110°5’E / ɗ 118” (1 Ψ [not ɗ as on label], slide # 0 3161, ROME); “ INDONESIA: Borneo, West Kalimantan, Gunung Palung Nat. Pk. 15 JUN–15 AUG 1991 Darling, Rosichon, Sutrisno, IIS 910122, Cabang Panti Res. Sta., 1° rainforest, 100–400m Alluvial, 1°15’S, 110°5’E malaise trap” (4 Ψ, ROME, UCR); “ INDONESIA: Borneo, West Kalimantan, Gunung Palung Nat. Pk. 21 JUN 1991, Darling, Rosichon, Sutrisno, IIS 910105, Cabang Panti Res. Sta. 1° rainforest, Alluvial­RR5, 1°15’S, 110°5’E, screen sweep” (1 Ψ, ROME); “ INDONESIA: W. Kalimantan Gunung Palung Nat. Pk. 15–26 JUN 1991 Darling, Sutrisno, Rosichon. IIS 910154 / Cabang Panti Res. Sta. 1° rainforest, 100–400m Alluviallight trap 1°15’S, 110°5’E Pitfall trap (dung) / ɗ 33” (1 ɗ, ROME).

Etymology. Named after one of the collectors, Chris Darling.

Figures

FIGURES 3 – 11. 3 – 8, Gollumiella buffingtoni: 3, female antenna; 4, male antenna; 5, fore wing of female; 6, hind wing of female; 7, labrum (la) and epipharynx (epi); 8, stigmal vein; 9 – 11, G. darlingi; 9, stigma of female; 10, fore wing of female; 11, base of antennal flagellum of female. Arrowheads point to homologous point of separation between flagellomeres F 1 and F 2.