Gonatocerus (Gahanopsis) arkadak Triapitsyn

Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 87-88

publication ID

https://doi.org/ 10.5281/zenodo.894928

DOI

https://doi.org/10.5281/zenodo.5099286

persistent identifier

https://treatment.plazi.org/id/2B1987A2-0439-FFAA-FF62-B2F0FE4AFC4A

treatment provided by

Plazi

scientific name

Gonatocerus (Gahanopsis) arkadak Triapitsyn
status

sp. nov.

Gonatocerus (Gahanopsis) arkadak Triapitsyn , sp. n.

( Figs 158–161 View FIGURES 158 – 161 )

Type material. Holotype female [ UCRC ENT 162769 View Materials ] on slide labeled: 1. “ COLOMBIA: Amazonas, PNN [Parque Nacional Natural] Amacayacu, Matamata , 3°41’S, 70°15’W, 150 m (M. 847), 4.viii–11.ix.2000, A. Parente, MT”; 2. “ Gahanopsis Det. J. T. Huber 2001 ”. The holotype is dissected under 4 coverslips, with the mesosoma and metasoma mounted dorsoventrally, and lacking one hind wing and most of one middle leg GoogleMaps . Paratype: ECUADOR. SUCUMBÍOS, Napo River , Sacha Lodge , 0°30’S 76°30’W, 270 m, 20–30.ix.1994, P. Hibbs [1 ♀ on card, CNCI] GoogleMaps .

Description. FEMALE (holotype). Body mostly brownish except face and scutellum yellowish to light brown; scape and pedicel light brown, flagellum brownish; legs light brown.

Antenna ( Fig. 158 View FIGURES 158 – 161 ) with radicle about 0.2x total length of scape, remainder of scape about 3.0x as long as wide; pedicel much longer than F1; funicle 7-segmented; F1, F3, and F5 much shorter (F1 the shortest) than remaining funicle segments and without mps; F2, F4, F6, and F7 subequal, mps on F2 (2), F4 (3), F6 (3), and F7 (4); clava 2.9x as long as wide, with 8 mps, almost as long as combined length of F6 and F7.

Mesosoma ( Fig. 159 View FIGURES 158 – 161 ). Mesoscutum, scutellum, and axillae finely sculptured; propodeum ( Fig. 160 View FIGURES 158 – 161 ) short, smooth. Forewing ( Fig. 161 View FIGURES 158 – 161 ) 3.2x as long as wide; longest marginal seta about 0.25x maximum wing width; forewing disc with a rather strong brownish tinge throughout except just behind submarginal vein, bare behind submarginal vein and densely setose elsewhere including behind marginal vein; macrochaetae on submarginal and marginal veins very strong. Hind wing ( Fig. 161 View FIGURES 158 – 161 ) about 13x as long as wide; longest marginal seta about 1.9x maximum wing width; disc with a brownish tinge and densely setose throughout except just behind apex of venation. Metafemur about 2.1x as long as wide.

Gaster much longer than mesosoma ( Fig. 159 View FIGURES 158 – 161 ); petiole very short, strap-like, inconspicuous, ovipositor long, 3.3x as long as mesotibia, projecting strongly forward under mesosoma (extending to mouthparts in the dry specimen and almost to base of propleura in the same slide-mounted specimen) and slightly exserted beyond apex of gaster by about 0.07x own length.

Measurements (µm) of the holotype. Total body length (of the dry specimen before slide-mounting): 693; head: 100; mesosoma 276; gaster 455; ovipositor 732. Antenna: radicle 18; rest of scape 81; pedicel 45; F1 17; F2 50; F3 21; F4 51; F5 24; F6 51; F7 49; clava 97. Forewing 707:221; longest marginal seta 58. Hind wing 646:48; longest marginal seta 89.

MALE. Unknown.

Diagnosis. Gonatocerus (Gahanopsis) arkadak sp. n. is characterized by the following unique combination: female antenna ( Fig. 158 View FIGURES 158 – 161 ) with funicle 7-segmented; F1, F3, and F5 much shorter than other funicle segments and without mps; F2, F4, F6, and F7 subequal and with mps.

Gonatocerus (Gahanopsis) deficiens (Ogloblin) is the only other known species of the subgenus to have a 7-segmented female funicle, but F2–F7 are more or less subequal in length and each has mps ( Fig. 163 View FIGURES 162, 163 ).

Etymology. The species name (a noun in apposition) refers to the town of Arkadak in Saratovskaya oblast`, Russia, the original, home town of part of the family of the author of this species.

Hosts. Unknown.

UCRC

University of California, Riverside

CNCI

Canadian National Collection Insects

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Mymaridae

Genus

Gonatocerus

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