Zachterbergius tenuitergum Fernandez-Triana & Boudreault, 2018

Fernandez-Triana, Jose L & Boudreault, Caroline, 2018, Seventeen new genera of microgastrine parasitoid wasps (Hymenoptera, Braconidae) from tropical areas of the world, Journal of Hymenoptera Research 64, pp. 25-140 : 116-119

Zachterbergius tenuitergum Fernandez-Triana & Boudreault sp. n.

Figs 46 , 47

Holotype.

Male, Thailand, QSBG.

Holotype labels.

THAILAND: Chiang Mai huai/Nam Dang NP Helipad/ 19°18.33'N, 98°36.289'E /30.xii.2007-7.i.2008/Anuchart leg. T5597. Second label: CNC878554.

Holotype locality.

THAILAND, Chiang Mai Province, Huai Nam Dang National Park, Helipad, 19°18.33'N, 98°36.289'E.

Paratype. Thailand. (1♂ QSBG), Chiang Mai, Huai Nam Dang NP, visitor center, 19.188000, 98.364000, 28.x.2007, coll. Anuchart, Thawatchai, Voucher code: JMIC0538.

Diagnosis.

This is the only known species in the genus so far, thus the generic diagnosis works as the species diagnosis as well.

Description.

Male. Body mostly brown to dark brown; palpi and first few laterotergites and sternites white; scape, pedicel and labrum yellow-white; flagellomeres light brown; propleuron and pronotum yellow-orange (darker in pronotum); legs mostly yellow-white (except for posterior 0.3 of metatibia and metatarsus which are brown); wings hyaline, most veins brown, pterostigma brown with pale spot on anterior 0.2. Labial palpi very long, extending to mesopleuron. Upper margin of face produced dorsally between the antennal insertions into a small triangular flange which has a median carina. Scape relatively very transverse (Fig. 46B ). Flagellomere with two rows of placodes. Polished band of scutellum interrupted medially by band of rugosity. Propodeum with clearly defined median carina and partially defined transverse carina and apical part of an areola. Fore wing with quadrangulate areolet. T1 with broad depression on anterior half. T2 longest and thinnest of Microgastrinae (T2 L 4.0 × its width at base and apex, T2 0.7-0.8 × as long as T1 L, T2 around 1.5 × as long as T3 L). Body measurements (mm). F2 L: 0.29 (0.30); F3 L: 0.28 (0.29); F14 L: 0.24 (0.26); F15 L: 0.23 (0.25); Malar sulcus L: 0.08 (0.09); Mandible W: 0.08 (0.08); T1 L: 0.33 (0.33); T1 W at posterior margin: 0.09 (0.08); T1 maximum W: 0.24 (0.26); T2 W at anterior margin: 0.05 (0.06); T2 W at posterior margin: 0.16 (0.23); T2 L: 0.27 (0.30); Metafemur L: 0.88 (0.89); Metafemur W: 0.19 (0.20); Metatibia L: 1.10 (1.10); Inner spur L: 0.25 (0.26); Outer spur L: 0.21 (0.22); First segment of Metatarsus L: 0.53 (0.52); Body L: 2.80 (2.75); Fore wing L: 2.90 (3.00).

Female. Unknown.

Biology.

Host unknown.

Distribution.

Thailand.

Molecular data.

A single sequence was obtained from the paratype, representing BIN BOLD:AAV2126, which is 15.6% different than the closest sequence available in BOLD.

Etymology.

From “tenuis” (in Latin “thin”), and “tergum” (in Latin “back”, also used as the dorsal/upper portion of an arthropod segment), referring the very thin second tergite of metasoma.

Figures

Figure 46. Zachterbergius tenuitergum male holotype. A Habitus B Head frontal C Fore wing D Metasoma dorsal E Propodeum F Head and mesosoma, dorsal.

Figure 47. Zachterbergius tenuitergum male paratype JMIC 0538. A Habitus dorsal B Mesosoma and metasoma, dorsal.