Acmopolynema problema S. Triapitsyn

TRIAPITSYN, SERGUEI V. & BEREZOVSKIY, VLADIMIR V., 2007, Review of the Oriental and Australasian species of Acmopolynema, with taxonomic notes on Palaeoneura and Xenopolynema stat. rev. and description of a new genus (Hymenoptera: Mymaridae), Zootaxa 1455 (1), pp. 1-68 : 13-15

Acmopolynema problema S. Triapitsyn & Berezovskiy, sp. n.

( Figs 11–13 )

Acmopolynema incognita (Narayanan, Subba Rao & Kaur) : Subba Rao 1989: 154 (misidentification).

Type material

Holotype female (on slide, BMNH): India, Karnataka, 25 km W of Mudigere , 28.x.–3.xi.1979, J.S. Noyes (B.M.1979.-518).

Paratype: INDIA: same data as holotype [1 female on card, BMNH] .

Description

FEMALE (holotype). Head light brown, with trabeculae dark brown, eyes and ocelli dirty pink. Mesosoma light brown, with some grooves and propodeal carinae brown. Petiole white; basal half or so of gaster brown, apex of gaster light brown, remainder of gaster and tip of ovipositor dark brown. Scape, pedicel, and F1 light brown, F2 and F3 brown; F4 light brown basally and whitish distally, F5 and F6 white, clava dark brown. Coxae, trochanters, pro- and mesofemora, and bases of tibiae whitish; rest of metatibia and metafemur dark brown; remainder of leg segments light brown.

Antenna ( Fig. 11 ) a little shorter than body. Scape smooth, without cross-ridges, about 3 x as long as wide in lateral view; pedicel slightly shorter than F1; F2 and F3 subequal and longest of funicle segments; F4–F6 subequal in length; all funicle segments without longitudinal sensilla; clava about 3.0 x as long as wide, with 8 longitudinal sensilla.

Mesosoma smooth. Pronotum mediolongitudinally divided, shorter than mesoscutum, with 11 pairs of strong, blunt setae. Mesoscutum much wider than long, slightly longer than scutellum. Axillar seta long, reaching about 1/2 length of scutellum; axilla with 6 or 7 large foveae along its margin with scutellum. Scutellum with a full row of small frenal foveae. Propodeum ( Fig. 12 ) with 1 pair of short, weak setae at posterior margin; submedial carinae extending to anterior margin of propodeum.

Forewing ( Fig. 13 ) about 4.3 x as long as wide; marginal vein with 2 dorsal macrochaetae; longest marginal cilia about 3/4 greatest width of wing; blade with 1 transverse brown band; base of blade bare except for a line of setae running from behind of marginal vein to the brown band, remainder of blade unevenly setose (modified setae of types F and G on colored spot only). Hind wing with blade hyaline; longest marginal cilia about 5 x greatest width of blade.

Coxae smooth, with numerous whitish setae basally, some of the setae blunt.

Petiole a little shorter than metacoxa. Ovipositor about 9/10 length of gaster, a little exserted beyond its apex (by about 1/10 of the total length of ovipositor); ovipositor length: metatibia length 1.1:1.

Measurements (holotype): Mesosoma: 455; mesoscutum: 139; scutellum: 130; petiole: 130; gaster: 448; ovipositor: 455. Antenna: scape (including radicle): 87; pedicel: 60; F1: 67; F2: 130; F3: 136; F4: 79; F5: 72; F6: 73; clava: 242. Forewing: 1089/254; longest marginal cilia: 185. Hind wing: 861/27. Legs (given as coxa, femur, tibia, tarsus): fore: 118, 288, 248, 342; middle: 97, 294, 397, 412; hind: 152, 330, 415, 417. Body length (paratype): 1189.

MALE. Unknown.

Diagnosis

This species is presently not assigned to a species group. It was wrongly placed in A. incognitum by Subba Rao (1989) despite having complete propodeal carinae ( Fig. 12 ) and a different forewing ( Fig. 13 ). The longest marginal cilia in A. problema are about 3/4 forewing width and thus relatively much longer than in A. incognitum , in which they are only 1/4 forewing width. It also differs from A. incognitum by coloration of the funicle segments of female antenna (F2 and F3 are contrastingly brown and F5 and F6 white, and the scape lacks cross-ridges). In A. incognitum , the scape has cross-ridges on the inner surface, F1–F5 are yellowish brown, and F6 is dark brown.

Etymology "Problema" (a noun in apposition) stands for “a problem” in Russian.

Figures

FIGURES 11–13. Acmopolynema problema (female, holotype). 11. Antenna. 12. Propodeum. 13. Forewing.