Neotriadomerus sp. 4

Huber, John T., 2017, Eustochomorpha Girault, Neotriadomerus gen. n., and Proarescon gen. n. (Hymenoptera, Mymaridae), early extant lineages in evolution of the family, Journal of Hymenoptera Research 57, pp. 1-87 : 29-32

Neotriadomerus sp. 4 Figs 148-150, 151-152

Material examined.

AUSTRALIA. Northern Territory: 12 km WNW Ross River, Tourist Camp, 23.32°S, 134.23°E, 13.v.1978, J.C. Cardale (1♂, ANIC).

Description.

Male. Body length ≈ 1330. Colour. Body almost uniformly dark brown; legs brown, with trochantelli, base and apex of femora and tibiae, and tarsi except tarsomere 5 paler; tarsomere 5 brown. Antenna. Measurements, length/width: scape 139/46, pedicel length/width 52/46, flagellar segment length: fl1 100/68, fl2 94/67, fl3 97/61, fl4 100/56, fl5 100/56, fl6 98/54, fl7 96/54, fl8 96/53, fl9 92/50, fl10 87/46, fl11 94/37; total flagellar length 1053; fl6 length/width 1.81, with 11 (12?) mps (Fig. 150). Mesosoma. Mesosoma (Figs 148, 149) length 640, 1.16 × as long as metasoma length; propodeum with 3 propodeal setae (Fig. 149). Wings. Fore wing length 1077, width 398, length/width 2.71, longest marginal setae 60; cubital line extending to just proximal to base of parastigma (Fig. 151). Hind wing length 900, width 138, longest marginal setae 64. Metasoma. Gaster length 517, with setae present on sterna but fewer than on terga (Fig. 152). Genitalia length 220 (Fig. 152).

Comment.

The flagellar segments are wider than those of N. darlingi (Figs 82, 95?), N. longiovipositor (Fig. 121), and N. powerae (Figs 129, 138) and N. sp. 1; the number and distribution of mps are most similar to N. darlingi or N. powerae and the propodeum has 3 setae as in N. powerae . The condensed description given above may help associate the male with a conspecific female when they are collected, preferably together with more males.