Gonatocerus (Lymaenon) karlik 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: 67-68

publication ID

http://dx.doi.org/10.11646/zootaxa.3644.1.1

publication LSID

lsid:zoobank.org:pub:DF42B735-9A47-48D5-B382-F6A980563914

DOI

http://doi.org/10.5281/zenodo.5099053

persistent identifier

http://treatment.plazi.org/id/DC2687A4-E57E-FFE7-68CC-0ECA1CA95DDA

treatment provided by

Plazi

scientific name

Gonatocerus (Lymaenon) karlik Triapitsyn
status

sp. n.

Gonatocerus (Lymaenon) karlik Triapitsyn   , sp. n.

( Figs 103–105 View FIGURES 103 – 105 )

Type material. Holotype female [ UCRC] on slide: CHINA. BEIJING, Mentougou District, Xiaolongmen Station, 39 ° 59.220 ’N 115 ° 31.479 ’E, 1095 m, 28.vii. 2002, G. Melika [ UCRC ENT 294199]. Paratypes: CHINA. BEIJING, Mentougou District: Liyan Ling (Linshan Mts.), 40 °00.279’N 115 ° 30.753 ’E, 1749 m, 2.viii. 2002, G. Melika (sweeping alpine meadows) [3 Ƥ on slides, UCRC]. Same data as holotype [9 Ƥ on slides, CNCI (1), UCRC (7), ZIN (1)]. REPUBLIC OF KOREA. GYEONGGI-DO, Suwon-si, Seodun-dong, Seoul National University, 15.ix. 2001, J.-W. Kim [1 Ƥ on slide, UCRC]. RUSSIA. STAVROPOL’SKIY KRAY: Achikulak, V.V. Kostjukov: 19.viii. 2002 [2 Ƥ, 1 3 on slides, UCRC]; 18.viii. 2003 [4 Ƥ, 4 3 on points, UCRC (2 Ƥ, 2 3), ZIN (2 Ƥ, 2 3)]. Prietokskiy, V.V. Kostjukov: 7.ix. 2002 [1 Ƥ on slide, UCRC]; 13.vii. 2003 [2 Ƥ on points, UCRC, ZIN, and 1 Ƥ on slide, UCRC].

Description. FEMALE. Body length 450–650 µm (point-mounted specimens) or 600–800 µm (slidemounted specimens). Head and mesosoma brown to dark brown, gaster and appendages mostly brown except base of gaster a little lighter (light brown).

Antenna ( Fig. 103 View FIGURES 103 – 105 ) with radicle 0.3–0.36 × total length of scape, rest of scape 2.9–3.3 × as long as wide, faintly sculptured; pedicel longer than F 1; F 1 –F 4 subequal in length and a little shorter than following funicle segments, F 8 the longest and broadest funicle segment and incised apically; mps on F 7 (usually 0, occasionally 1 on one or both antennae) and F 8 (2); clava with 7 or 8 mps, 3.1–3.7 × as long as wide, longer than combined length of F 6 –F 8 (sometimes about as long as combined length of F 5 –F 8).

Mesosoma ( Fig. 104 View FIGURES 103 – 105 ). Propodeum with submedian lines rather close to each other anteriorly but very wide posteriorly. Fore wing ( Fig. 105 View FIGURES 103 – 105 ) 3.1–3.8 × as long as wide; longest marginal seta 0.51–0.58 × maximum wing width; disc with a slight brownish tinge, mostly bare behind submarginal vein except for a few setae behind its apex and setose elsewhere. Hind wing ( Fig. 105 View FIGURES 103 – 105 ) 22–24 × as long as wide; disc about as wide as or a little wider subapically than just beyond hamuli, setose, and with a slight brownish tinge; longest marginal seta 3.6–4.2 × maximum wing width.

Metasoma ( Fig. 104 View FIGURES 103 – 105 ). Gaster longer than mesosoma. Petiole 1.4–1.8 × as wide as long. Ovipositor occupying 0.6–0.7 × length of gaster, not exserted beyond its apex; ovipositor length: mesotibia length ratio 1.3–1.4: 1.

Measurements (µm) of the holotype. Body 787; mesosoma 277; petiole 18; gaster 356; ovipositor 242. Antenna: radicle 43; rest of scape 98; pedicel 48; F 1 18; F 2 18; F 3 21; F 4 22; F 5 30; F 6 32; F 7 32; F 8 37; clava 129. Fore wing 633: 183; longest marginal seta 94. Hind wing 500: 22; longest marginal seta 79.

MALE. Body length (dry-mounted paratypes) 450–650 µm. Similar to female except for normal sexually dimorphic features and the longest marginal seta about 0.64 × maximum wing width (in only one slide-mounted specimen measured).

Diagnosis. Gonatocerus karlik   is very similar to G. kazak   , from which it differs by usually lacking mps on F 7 of the female antenna, the relatively shorter F 1 –F 4 ( Fig. 103 View FIGURES 103 – 105 ), and especially by the consistently relatively longer marginal setae on the fore wing (the longest such seta is at least 0.5 × the maximum wing width). In G. kazak   F 7 always bears 1 or 2 mps, F 1 –F 4 are relatively longer ( Fig. 113 View FIGURES 113 – 115 ), and the marginal setae on the fore wing are consistently relatively shorter (the longest such seta is at most 0.34 × the maximum wing width). Gonatocerus karlik   differs from that of the similarly looking Nearctic species G. (Lymaenon) pygmaeus Girault   in having F 3 subequal in length to F 1, F 2, and F 4, and also in lacking a distinct bare area on the fore wing disc behind the marginal vein anterior to the cubital row of setae, whereas in the latter F 3 is longer than F 1, F 2, or F 4, and the fore wing disc has a distinct bare area behind the marginal vein anterior to the cubital row of setae.

Etymology. The name (a noun in apposition) stands for a dwarf in Russian; the species is named so because of its relatively minute size.

Hosts. Unknown.

UCRC

University of California, Riverside

ENT

Ministry of Natural Resources

CNCI

Canadian National Collection Insects

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum