Neotriadomerus darlingi Huber, 2017

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 : 16-20

publication ID	https://dx.doi.org/10.3897/jhr.57.12892
publication LSID	lsid:zoobank.org:pub:6201DACE-9900-4A2F-92C9-D3014851100D
persistent identifier	https://treatment.plazi.org/id/12B05D86-1539-4CA9-B5F8-6895EA2E6952
taxon LSID	lsid:zoobank.org:act:12B05D86-1539-4CA9-B5F8-6895EA2E6952
treatment provided by	Journal of Hymenoptera Research by Pensoft
scientific name	Neotriadomerus darlingi Huber
status	sp. n.

Treatment

Neotriadomerus darlingi Huber sp. n.

Figs 33 View Figures 32–37 , 40-43 View Figures 38–43 , 44 View Figures 44–49 , 47 View Figures 44–49 , 50 View Figures 50–55 , 52 View Figures 50–55 , 65 View Figures 61–66 , 81 View Figure 81 , 82 View Figure 82 , 83-86 View Figures 83–86 , 87-89 View Figures 87–89 , 90-92 View Figures 90–92 , 93-96 View Figures 93–96 , 97-99 View Figures 97–99

Type material.

Holotype female (ANIC) on slide (Fig. 84 View Figures 83–86 ), labelled: 1. "Australia: Sth Aust. 32 km N. Renmark, 263m 33°53'S, 140°43'E, 15.ii-15.iv.2000, DC Darling". 2. "Bookmark Biosphere Rsv. Malaise trps (4) Amalia Dam xeric mallee scrub ROM 2000040". 3. " Neotriadomerus darlingi Huber Holotype ♀ dorsal".

Paratypes. 3 females, 1 male. AUSTRALIA. South Australia: Same locality data as holotype (1 ♀ and 1♂, ROM, CNC); 35 km N Renmark, 263m, 33°52'48"S; 140°43'30"E, 11-14.ii.2000, D.C. Darling, Bookmark Biosphere Reserve, Malaise trap, Amalia Dam, mallee vegetation, ROM 2000030 (1♀, ANIC). Western Australia: 85 km E. Southern Cross, Boorabbin National Park, 28.xii.1986, J.S. Noyes (1♀, BMNH)

Two males with the following data questionably belong to this species so are not labelled as paratypes. They were collected from South Australia, Brookfield Conservation Park, 34.21°S, 139.29°E, 17 & 18.ii.1992, J. Cardale, A. Roach, light trap (2♂, ANIC) and one is illustrated (Figs 93 View Figures 93–96 - 99 View Figures 97–99 ). Both sexes need to be collected together from Brookfield Conservation Area to be more certain of their conspecificity with the holotype.

Diagnosis.

Neotriadomerus darlingi differs from the other small (body length less than 2600) species of Neotriadomerus as follows: fore wing with cubital line extending proximally to about level of other microtrichia (Fig. 86 View Figures 83–86 ); funicle segments with at most 6 mps (Fig. 85 View Figures 83–86 ); ovipositor 2.57-2.74 × as long as metatibia (Fig. 92 View Figures 90–92 ).

Description.

Female. Body length 1420-1560 (n=2, card-mounted paratypes). Colour. Body (Fig. 81 View Figure 81 ) almost uniformly dark brown; fore leg yellow except procoxa brownish basally, ventral surface of profemur and tarsomere 5 brown; middle and hind legs lighter brown with trochantelli, base and apex of femora and entire protibia, base and apex of meso- and metatibiae, and tarsi except tarsomere 5 paler, almost white; metafemur medially and tarsomere 5 brown; ovipositor sheath with lighter band subapically (Figs 81 View Figure 81 , 88 View Figures 87–89 , 89 View Figures 87–89 ). Head. Width ≈ 320-346 (card-mounted) and 358 (slide mounted specimen from WA, Figs 90 View Figures 90–92 , 91 View Figures 90–92 ). Antenna. Fl1 slightly shorter than to almost equal to fl2, with 5 mps (Fig. 85 View Figures 83–86 ); fl2-fl8 with 6 mps. Clava with 10 or 11 mps, 5 or 6 on first, 2 on second and 4 on third segment. Antennal measurements (n=2, first number is for the holotype, a slightly smaller specimen), length/width (ratio of flagellar segments): scape 124-126/37-40 (3.37-2.51), pedicel 50-56/39-41 (1.29-1.36), fl1 70-74/38-45 (1.85-1.65), fl2 80-75/34-40 (2.36-1.88), fl3 77-76/34-38 (2.26-1.97), fl4 78-75/35-38 (2.24-1.96), fl5 79-76/33-38 (2.39-2.01), fl6 76-74/33-37 (2.28-2.20), fl7 77-78/34-39 (2.23-2.13), fl8 76/34-40 (2.25-1.89); entire clava 141-142/39-42 (3.63-3.40), with segments 1-3 length [measured along dorsal margin], 48-50, 25, and 67-68. Mesosoma. Width 225 (holotype), length 628-656, with 2 propodeal setae (Fig. 87 View Figures 87–89 ). Wings. Fore wing length 1045-1118, width 383-412, length/width 2.71-2.73, longest marginal setae ≈ 51-61; cubital line extending to just proximal to base of parastigma (Fig. 86 View Figures 83–86 ). Hind wing length ≈ 870-890, width 121-140, longest marginal setae ≈ 58-62. Legs. Protibia with 4 or 5 short, thick pegs along its length and a transverse row of 2 or 3 abutting pegs apically. Metasoma. Metasoma in lateral view 255-360 at highest point, gradually widening from petiole to about 0.4-0.7 of gaster length towards apex, then more abruptly narrowing to cerci (Fig. 89 View Figures 87–89 ). Gaster length (holotype, second measurement) 776-858, 1.18-1.36 × as long as mesosoma; gt1-gt7 lengths about ≈ 162-170, ≈ 136-144, 98-126, 113-177, 132-186, 209 -146, 53-58; hypopygium extending about 0.6 × length of gaster, about to apex of tergum 4. Ovipositor sheath length ≈ 946-1050, about 2.57-2.74 × metatibia length (368-383), extending anteriorly to apex of procoxa (or anterior margin of frenum) and extending posteriorly to a little beyond apex of gaster (Figs 88 View Figures 87–89 , 89 View Figures 87–89 , 92 View Figures 90–92 ).

Male. Body length 1330 (point-mounted paratype) and 1230 (slide-mounted specimen, Brookfield Conservation Area). Colour as for female but with legs almost entirely brown (Fig. 82 View Figure 82 ). Head. If correctly associated, as for female (Figs 93 View Figures 93–96 , 94 View Figures 93–96 ). Antenna. Fl1 with about 13 mps and about 1.5 × as wide as fl11 with about 7 mps (Fig. 95 View Figures 93–96 ); total length of flagellum 475. Antennal measurements length/width (slide-mounted specimen): scape 120/41 (2.90), pedicel 47/43 (1.09), fl1 92/53 (1.75), fl2 105/48 (2.24), fl3 108/48 (2.24), fl4 104/44 (2.38), fl5 109/43 (2.54), fl6 100/42 (2.41), fl7 98/41 (2.39), fl8 97/43 (2.24), fl9, 96/41 (2.35), fl10 86/39 (2.22), fl11 92/35 (2.64); fl6 with about 11 mps. Mesosoma. Length 620, width 290 (Fig. 97 View Figures 97–99 ). Wings. If correctly associated, as for female (Fig. 96 View Figures 93–96 ). Metasoma. Pedicel length/width 30/75 (Fig. 98 View Figures 97–99 ). Gaster length ≈ 785. Genitalia with capsule thick-walled, aedeagal apodeme thick and shorter than aedeagus; paramere thick and apically curved medially (Fig. 99 View Figures 97–99 ).