Gonatocerus (Lymaenon) kalika Triapitsyn

Triapitsyn, Serguei V., 2013, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Palaearctic region, with notes on extralimital distributions, Zootaxa 3644 (1), pp. 1-178 : 64-65

Gonatocerus (Lymaenon) kalika Triapitsyn , sp. n.

( Figs 95–98 )

Type material. Holotype female [ ZMUC] on slide ( Fig. 95 ) originally labeled: 1. [in India ink on the glass] “MAGLEBY STRAND AMAGER J. P Kryger”; 2. [in pencil] “ LYMAENON ” . The type locality seems to be Magleby, Amager Island, Hovedstaden, Denmark although is not clear if that was in Amager Strandpark (more likely since “strand” means “beach” however there is no location named “Magleby Strand” on Amager Island) or Store Magleby (a village South of Copenhagen Airport on Amager Island but there is no beach there). There is also a Magleby Strand, but this is in southern Zealand Island, well away from Amager Island (Lars B. Vilhelmsen, personal communication). The holotype is in fair condition although not sufficiently cleared, well spread out, mounted dorsoventrally.

Description. FEMALE. Head dark brown, the rest of body brown; scape and pedicel mostly light brown, flagellum brown; legs light brown to brown.

Antenna ( Fig. 96 ) with radicle about 0.3× total length of scape, rest of scape slightly striate; pedicel longer than F1; F1–F4 gradually increasing in length, F5–F7 subequal in length, longer than preceding segments and a little longer than F8; mps on F6 (2), F7 (2), and F8 (at least 2, possibly 3); clava apparently with 8 mps, short (2.9× as long as wide), shorter than combined length of F7 and F8.

Mesosoma ( Fig. 97 ). Propodeum with submedian lines rather wide apart. Fore wing ( Fig. 98 ) 4.0× as long as wide; longest marginal seta 0.3× maximum wing width; disc almost hyaline, bare behind submarginal vein, sparsely setose between marginal vein and cubital row of setae thus leaving a small bare area, and densely setose elsewhere. Hind wing ( Fig. 98 ) 25.5× as long as wide; disc with a row of setae along each margin and additional setae at apex, mostly hyaline but slightly infumate apically; longest marginal seta about 2.7× maximum wing width.

Metasoma ( Fig. 97 ). Gaster very long, much longer than mesosoma. Petiole strap-like, much wider than long. Ovipositor occupying entire length of gaster, exserted beyond its apex by 0.1× own length; ovipositor length: mesotibia length ratio 2.9:1.

Measurements (µm). Body 1550; head 172; mesosoma 375; gaster 1000; ovipositor 1105. Antenna: radicle 75; rest of scape 166; pedicel 60; F1 37; F2 46; F3 61; F4 73; F5 91; F6 91; F7 90; F8 79; clava 148. Fore wing 1292:323; longest marginal seta 100. Hind wing 996:39; longest marginal seta 106.

MALE. Unknown.

Diagnosis. Gonatocerus kalika is a large, distinctive species characterized by the combination of long funicle segments and short clava ( Fig. 96 ), a narrow fore wing ( Fig. 98 ), and a very long gaster ( Fig. 97 ). It is most similar to G. novickyi Soyka but differs by the presence of a small bare area on the fore wing disc between the marginal vein and the cubital row of setae (discal setae originate behind base of marginal vein, Fig. 98 ), and a relatively shorter clava relative to the length of funicle segments (clava shorter than combined length of F7 and F8 and apparently bearing 8 mps), whereas in G. novickyi the clava is longer than the combined length of F7 and F8 and bears 10 mps, the discal setae on the fore wing originate behind the apex of the submarginal vein, and the area between the marginal vein and the cubital row of setae is densely setose ( Fig. 175 ). Gonatocerus kalika differs from G. acuminatus by its much narrower fore wing, 4.0× as long as wide in the former compared to at most 2.9× as long as wide in the latter ( Fig. 54 ).

Etymology. The species name (a noun in apposition) stands for a wanderer in Russian folk tales.

Hosts. Unknown.

Figures

FIGURES 95 – 98. Gonatocerus (Lymaenon) kalika Ƥ (holotype): 95, slide; 96, antenna; 97, mesosoma and metasoma; 98, wings.

FIGURES 172 – 175. Gonatocerus (Lymaenon) novickyi Ƥ (172 – 174 — presumed holotype; 175 — non-type specimen from the type locality): 172, slide; 173, antenna; 174, gaster; 175, fore wing.

FIGURES 53, 54. Gonatocerus (Lymaenon) acuminatus Ƥ (53 — Richmond Park, England; 54 — Chobham Common, England): 53, mesosoma and metasoma; 54, wings.