Gonatocerus (Lymaenon) longior Soyka, 1946

Triapitsyn, Serguei V., 2013, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Palaearctic region, with notes on extralimital distributions, Zootaxa 3644 (1), pp. 1-178 : 99-104

Gonatocerus (Lymaenon) longior Soyka, 1946

( Figs 158–171 )

Gonatocerus longior Soyka 1946: 38–39 .

Type locality: Valkenburg, Limburg, Netherlands [not Hundsheim, Lower Austria, Austria as erroneously indicated in the original description].

Lymaenon conicus Mathot 1969: 2 (list), 3–5, 10 (key).

Type locality: Tervuren, Flemish Brabant, Belgium. Syn. n.

Gonatocerus longior Soyka : Matthews 1986: 224 (diagnosis, distribution); Viggiani & Jesu 1986: 31 (compared with Lymaenon vidanoi ); Zeya & Hayat 1995: 100 –101 (redescription, distribution) + 148 (illustrations); Baquero & Jordana 2003: 12 –13 (diagnosis, redescription, distribution); Donev 2005: 381 (diagnosis, distribution).

Gonatocerus conicus (Mathot) : Noyes (2012).

Type material examined. Gonatocerus longior Soyka : holotype female [ NHMW] on slide ( Fig. 158 ) labeled: 1. “ Gonatocerus longior Ƥ (Soyka) det. W. Soyka”; 2. [red] “Type”; 3. [Soyka’s slide number] “796”; 4. “ 14. Sept. 1930 Valkenburg [two words crossed out in ink] [two illegible words] Canadabalsam”. The holotype is complete, uncleared, and mounted laterally.

Gonatocerus conicus (Mathot) : holotype female of Lymaenon conicus Mathot [ ISNB] on slide ( Fig. 159 ) labeled: 1. “Université de Louvain LAB. ENTOMOLOGIE Tervueren [sic] 23.VIII.44 266”; 2. “Dr. H. DEBAUCHE det. Lymaenon conicus Deb. Ƥ Type”. The holotype ( Fig. 160 ) is in fair condition although it is uncleared, almost complete (lacking apex of one of the hind wings), and mounted laterally.

Material examined. AUSTRIA. LOWER AUSTRIA, Hainburg an der Donau , 48°08’45’’N 16°55’31’’E, 142 m, 17.vi.2007, S.V. Triapitsyn, C. Thuróczy [1 Ƥ, UCRC]. DENMARK. HOVEDSTADEN, Tisvilde , 5.x.1924, O. Bakkendorf [4 Ƥ, ZMUC]. FRANCE. GARD, Near Gardon River , 43°55’45’’N 4°23’25’’E, 10–13.vi.2005, J. George [1 Ƥ, UCRC]. GIRONDE, Sainte Colombe , 44°54N 00°02’W, 2.vii.1998, M. van Helden [1 Ƥ, UCRC]. GEORGIA. ADJARA: Batumi, Botanic Gardens , 24.viii.1953, V.A. Trjapitzin (on maple) [1 Ƥ, ZIN]. Keda , 7.ix.1953, V.A. Trjapitzin [1 Ƥ, ZIN]. GERMANY. NORTH RHINE-WESTPHALIA, Roggendorf , 19.ix.1963, M. Boness [2 Ƥ, NHMW]. GREECE. CENTRAL MACEDONIA, Lake Kerkini: Ecotourism site, 41°08’15.6’’N 23°13’01.2’’E, 65 m, 13–19.vi.2006, G. Ramel [1 Ƥ, UCRC]. Procom Site , 41°22’38.1’’N 23°21’58.8’’E, 60 m, 20–26.vi.2007, G. Ramel [1 Ƥ, UCRC]. HUNGARY. BÁCS-KISKUN, Kalocsa, 28.vii.1948, J. Erdös (on Acer campestre ) [1 Ƥ, NHMW / HNHM] (misidentified as G. ater Foerster by J. Erdös but correctly identified by W. Soyka). VAS, Köszeg , 20–22.ix.2002, S.V. Triapitsyn, C. Thuróczy [4 Ƥ, 1 3, UCRC]. ITALY. LAZIO: Roma Prov.: Bosco di Manziana , 42°07.392’N 12°07.314’E, 400 m, 9.vi.2003, M. Bologna, J. Munro, A. Owen, J.D. Pinto [1 Ƥ, UCRC]. Caldara di Manziana , 42°05.607’N 12°05.906’E, 305 m, 10.vi.2003, M. Bologna, J. Munro, A. Owen, J.D. Pinto [1 Ƥ, UCRC]. Castelporziano Presidential Estate, La Focetta , 41°41.474’N 12°22.633’E, 10 m, 11–12.vi.2003, J. Munro, A. Owen [1 Ƥ, UCRC]. 0.8 km W of Sasso , 42°02.967’N 12°02.209’E, 264 m, 9–10.vi.2003, M. Bologna, J. Munro, A. Owen, J.D. Pinto [5 Ƥ, 1 3, UCRC]. Viterbo Prov., Ponte San Pietro , 42°31.669’N 11°36.353’E, 75 m, 10.vi.2003, M. Bologna, J. Munro, A. Owen, J.D. Pinto [1 Ƥ, UCRC]. SICILY, Palermo, University of Palermo garden, 38°06’27.2’’N 13°21’02.4’’E, 41–43 m, S.V. Triapitsyn: 13–14.viii.2009 [1 Ƥ, UCRC]; 14–17.viii.2009 [1 Ƥ, UCRC]. KYRGYZSTAN. ISSYK-KUL, S Shore of Lake Issyk-kul, 10 km E of Kadzhi-Saj , 42°10’33’’N 77°18’55’’E, 1675 m, 5.vii.1999, C.H. Dietrich [1 Ƥ, UCRC]. NETHERLANDS. LIMBURG, Valkenburg , ix.1930, W. Soyka [1 Ƥ, NHMW]. RUSSIA. KRASNODARSKIY KRAY, Krasnodar, All-Russian Research Institute of Biological Plant Protection , 31.viii.2003, V.V. Kostjukov [2 Ƥ, UCRC, ZIN]. MOSKOVSKAYA OBLAST’, Noginskiy rayon, Fryazevo, M.E. Tretiakov : 25.vii.2002 [5 Ƥ, 1 3, UCRC]; 1.viii.2002 [1 Ƥ, UCRC]. STAVROPOL’SKIY KRAY: Prietokskiy , 12.viii.2003, V.V. Kostjukov [1 Ƥ, UCRC]. Stavropol’, Russkiy Les, “ Besputskaya Polyana ” Botanical Sanctuary , 9.vii.2003, E.V. Khomchenko [1 Ƥ, UCRC]. SWITZERLAND. BERN, Interlaken , 31.7.1952, O. Bakkendorf [1 Ƥ, ZMUC]. UK. WALES, Bridgend Co. Borough, Kenfig Pool National Nature Reserve , 4.viii.1994, J.S. Noyes [2 Ƥ, CNCI].

Distribution. PALAEARCTIC: Austria *, Belgium ( Mathot 1969) [as Lymaenon conicus ], Bulgaria ( Donev 2001 [record needs conformation because Donev (2005) did not list this species from Bulgaria]), Denmark *, France *, Georgia *, Germany [may be a new record because the previous listing of this species from Germany by Donev (2001) needs confirmation], Greece ( Donev 2005), Hungary *, Italy *, Kyrgyzstan *, Netherlands, Russia *, Spain ( Baquero & Jordana 2003), Switzerland *, Turkey ( Donev 2001, 2005), UK: England ( Matthews 1986), and Wales *. ORIENTAL: India ( Zeya & Hayat 1995). The previous record of this species from Austria by Soyka (1946), cited by Baquero & Jordana (2003), was erroneous.

Redescription. FEMALE (holotypes of G. longior and Lymaenon conicus , and non-type specimens). Body length 825–1025 µm. Body ( Fig. 160 ) mostly brown except gaster light brown basally, appendages light brown to brown.

Antenna ( Figs 160 , 161 , 164 ) with radicle 0.31–0.35× total length of scape, rest of scape 3.4–3.5× as long as wide; pedicel longer than F1; F1 about as long as F2, a little shorter than F3 and F4; F5 the longest funicle segment, F6–F8 slightly shorter and F8 with an incision at apex; mps on F5 (usually 1, rarely 0 or 2), F6 (0 or 1), F7 (1 or 2), and F8 (2); clava with 10 mps, 3.1–3.8× as long as wide, a little shorter than combined length of F6–F8. Mesosoma ( Figs 160 , 165 ). Propodeum ( Fig. 166 ) with submedian lines wide apart. Fore wing ( Figs 160 , 163 , 167 ) 2.9–3.4× as long as wide; longest marginal seta 0.25–0.3× maximum wing width. Fore wing disc hyaline, bare behind submarginal vein, more or less sparsely setose between marginal vein and cubital row of setae (often leaving a bare area but occasionally such area not evident) and densely setose elsewhere. Hind wing ( Fig. 168 ) 22–23× as long as wide; disc hyaline, unevenly setose; longest marginal seta 2.8–3.3× maximum wing width.

Metasoma ( Figs 160 , 162 , 165 ) longer than mesosoma. Petiole about 2.5× as wide as long. Ovipositor occupying from about 0.8× to entire length of gaster, usually exserted beyond its apex by 0.06–0.09× own length; ovipositor usually 1.9–2.1× length of mesotibia but occasionally as low as 1.7×.

Measurements (µm) of the holotype of G. longior . Head: 132; mesosoma 338; gaster 529; ovipositor 550. Antenna: radicle 48; rest of scape 106; pedicel 57; F1 30; F2 30; F3 37; F4 40; F5 64; F6 52; F7 58; F8 60; clava 157. Fore wing 953:332; longest marginal seta 84. Hind wing 800:36; longest marginal seta 100.

Description. MALE. Body length (measurement taken from dry-mounted specimen from Fryazevo, Moskovskaya oblast’, Russia before slide-mounting) 896 µm. Head and mesosoma mostly brown except pronotum yellow to light brown; scape and pedicel yellow to light brown, flagellum brown; legs yellow to light brown; basal gastral terga yellowish, apical ones brown. Antenna ( Fig. 169 ) with scape 2.1–2.4× as long as wide. Fore wing ( Fig. 170 ) about 3.2× as long as wide; hind wing ( Fig. 170 ) about 24× as long as wide. Genitalia as in Fig. 171 .

Diagnosis. Gonatocerus longior is recognizable by the fore wing ( Figs 163 , 167 , 170 ) with sparse setae between the marginal vein and the cubital row of setae (often leaving a distinct bare area), the female antenna ( Figs 161 , 164 ) usually bearing 1 mps on F5, 0 or 1 mps on F6, 1 or 2 mps on F7, 2 mps on F8, and 10 mps on the clava, and also by the relatively long ovipositor ( Figs 162 , 165 ) which is usually 1.9–2.1× as long as mesotibia.

Hosts. Unknown.

Figures

FIGURE 158. Gonatocerus (Lymaenon) longior Ƥ (holotype): slide.

FIGURES 159, 160. Gonatocerus (Lymaenon) longior Ƥ (holotype of Lymaenon conicus Mathot): 159, slide; 160, habitus.

FIGURES 161 – 163. Gonatocerus (Lymaenon) longior Ƥ (holotype): 161, antennae; 162, gaster; 163, wings.

FIGURES 164 – 168. Gonatocerus (Lymaenon) longior Ƥ (164, 167 — Bosco di Manziana, Lazio, Italy; 165, 166 — Kenfig Pool National Nature Reserve, Wales; 168 — Köszeg, Hungary): 164, antenna; 165, mesosoma and metasoma; 166, dorsellum and propodeum; 167, fore wing; 168, hind wing.

FIGURES 169 – 171. Gonatocerus (Lymaenon) longior 3 (169, 170 — Fryazevo, Moskovskaya oblast’, Russia; 171 — Köszeg, Hungary): 169, antenna; 170, wings; 171, genitalia.