Ooctonus notatus Walker, 1846

Triapitsyn, Serguei V., 2010, Revision of the Palaearctic species and review of the Oriental species of Ooctonus (Hymenoptera: Mymaridae), with notes on extralimital taxa 2381, Zootaxa 2381 (1), pp. 1-74 : 28-32

Ooctonus notatus Walker, 1846

( Figs 38–47 )

Ooctonus notatus Walker 1846: 192 ; lectotype female, designated by Graham 1982: 226 [NMID], not examined (but photographs of the entire specimen examined); type locality: unknown [“British” on the original label by Haliday], so almost certainly the type locality was in England because it was specified in the original description that it occurs in England and Ireland; Walker (1846) regarded it as a possible variety of O. vulgatus Haliday.

Ooctonus heterotomus Foerster 1847: 200 ; female and male syntypes were not numbered by Foerster (1847), 9 female and 23 male “Cotypes” from A. Foerster/G. Mayr collection [NHMW] were mentioned by Soyka (1941), but 10 female and 10 male syntypes were found in NHMW as well as 1 female and 1 male apparent syntypes are in MHNG, all examined; type locality: near Aachen, North Rhine-Westphalia, Germany. Synonymized under O. notatus by Graham 1982: 226.

Ooctonus heterotomus Foerster : Dalla Torre 1898: 430 (catalog); Bakkendorf 1934: 34–42 (immature stages, biology, illustrations); Soyka 1941: 82–83 (redescription); Debauche 1948: 124–126 (redescription); Soyka 1949: 55–57 (redescription); Hincks 1952: 159–160 (diagnosis, distribution); Hellén 1974: 8 (diagnosis, distribution including localities in Russia); Donev 1983: 33 (distribution).

Ooctonus notatus Walker : Dalla Torre 1898: 430 (catalog); Graham 1982: 226 (reinstated as a valid species from previous de facto synonymy under O. vulgatus by Hincks 1952: 157–158); Viggiani & Jesu 1988: 1024 (records from Italy); Pricop 2008: 44–45 (illustrations), 47 (distribution, taxonomic notes).

Ooctonus auripes Whittaker 1931: 190 ; holotype female [BMNH], not examined; type locality: Chilliwack , British Columbia, Canada, syn. n.

Ooctonus atroflavus Soyka 1949: 45 ; holotype female [NHMW], examined; type locality: Krössbach , Neustift, Stubaital, Tirol, Austria, syn. n.

Ooctonus diversicornis Soyka 1949: 48–49 ; holotype female [NHMW], examined; type locality: Krössbach , Neustift, Stubaital, Tirol, Austria, syn. n.

Ooctonus vulgatus Haliday : Hincks 1952: 157–158 (misidentification, de facto synonymy).

Type material examined. Ooctonus atroflavus Soyka : Holotype female [ NHMW] on slide labeled: 1. “ Ooctonus atroflavus (Soyka) ♀ Type ”; 2. “ Type ”; 3. “ Krössbach am Fenster 12 Sept. 1948 lg. Soyka In Canadab. ”.

Ooctonus auripes Whittaker : Paratype female [ USNM] on card labeled: 1. “Chilliwack B.C. 4–IX–26 Coll. O.W.”; 2. “ Ooctonus auripes, Whitt. ♀ Det. O. Whittaker ”; 3. [red] “ Paratype ”; 4. [red] “ Paratype No. 43553 U.S. N.M.”.

Ooctonus diversicornis Soyka : Holotype female [ NHMW] on slide labeled: 1. “ Ooctonus diversicornis (Soyka) ♀ Type ”; 2. “ Type ”; 3. “ Krössbach am Fenster 27. Aug. 1947 lg. Soyka In Canadab. ”.

Ooctonus heterotomus Foerster : Lectotype female [ NHMW], here designated to avoid ambiguity of the status of the type specimens of this species, on slide labeled: 1. “ O. heterotomus [in India ink in A. Foerster’s handwriting] Förster, Type”; 2. “ Collect. G. Mayr ”; 3. “180”; 4. [in W. Soyka’s handwriting] “ Ooctonus heterotomus Förster ♀ dt. Soyka (Canadabals.)”. Paralectotypes [ NHMW]: 3 females (numbers 177–179) and 4 males (numbers 168–171) on individual slides, labeled: 1. [in W. Soyka’s handwriting] “ Ooctonus heterotomus Förster [respective gender symbol] (Canadabals.)”; 2. [slide number]; 3. “ O. heterotomus [in India ink in A. Foerster’s handwriting] Förster, Type”; 4. “ Collect. G. Mayr ”. In addition, the female on slide No. 179 has the following label: “Aach. Först.”; the male on slide No. 168 has the following label: “Först.” [in A. Foerster’s handwriting]; and the male on slide No. 170 has the following label: “ Ooctonus heterotomus ♂. m.” [in A. Foerster’s handwriting]. 6 females (numbers 172–176 and 187) and 6 males (numbers 162–167) on individual slides, labeled: 1. [in W. Soyka’s handwriting] “ Ooctonus heterotomus Förster [respective gender symbol]”; 2. [slide number]; 3. “Collect. lg. Mayr Förster, Type Aachen [locality is indicated on slides Nos. 163, 164, 166, 173, 176 only], Förster In Canadabals. ”. The female on slide No. 187 actually belongs to O. vulgatus . Identities of some of the male paralectotypes cannot be verified because they were poorly (laterally) remounted by W. Soyka. Also unverified are 1 female and male on minuten pins on the same block [ MHNG], labeled: 1. “ Ooctonus heterotomus Frst. ” [in India ink, apparently in A. Foerster’s handwriting]; 2. “ Ooctonus heterotomus F.” [in blue ballpoint pen].

Material examined. AUSTRIA. CARINTHIA, Arnoldstein, 14.viii.1978, L. Huggert [2 ♀, 1 ♂, CNCI]. TIROL, Krössbach, W. Soyka: 25.viii.1955 [1 ♀, NHMW]; ix.1955 [2 ♀, NHMW]; 1.viii.1957 [1 ♀, NHMW] (determined by W. Soyka as O. diversicornis ); 5.viii.1957 [1 ♀, NHMW]; 6.viii.1957 [1 ♀, NHMW]; 7.viii.1957 [1 ♀, NHMW] (determined by W. Soyka as O. diversicornis ); 8.viii.1958 [1 ♀, NHMW]; 10.viii.1961 [1 ♀, NHMW]; x.1961 [1 ♀, NHMW]; 8.viii.1965 [1 ♀, NHMW]. BELGIUM. LIÈGE: Mont Rigi: 5–11.viii.1983 [1 ♂, CNCI]; 18.viii–8.ix.1983 [6 ♀, CNCI]. Wanze, Antheit, Corphalie, R. Detry: 20.x– 3.xi.1989 [1 ♀, ISNB]; 28.ix–12.x.1990 [1 ♀, ISNB]. LUXEMBOURG, Gomery (near Bleid), 18–21.v.1981, P. Grootaert [1 ♂, CNCI]. FRANCE. HERAULT, 4 km W of Montpellier, 23.iv.1978, J.T. Huber [1 ♂, CNCI]. GEORGIA. ADZHARIA, Batumi, Kakhaberi, 16.vii.1953, V.A. Trjapitzin [1 ♂, ZIN]. GERMANY. LOWER SAXONY, Siedlung Leinetal, Reinshof, ca. 155 m, 17.vi.1953, Prilop (in sugar beet field) [1 ♀, NHMW]. NORTH RHINE-WESTPHALIA: Aachen, G. Mayr: 1 ♀ [ NHMW]; 1 ♂ [ NHMW] (labeled by A. Foerster as “ O. angustipennis ” 1).?Aachen area, G. Mayr: 1 ♂ [ NHMW] 3; 1 ♂ [ NHMW] (labeled by A. Foerster as “ O. apicalis ” 1 and identified by W. Soyka as O. atroflavus ); 2 ♂ [ NHMW] (labeled by A. Foerster as “ O. apicalis ” 1 and identified by W. Soyka as O. heterotomus ); 12 ♂ [ NHMW] 3 (identified by W. Soyka as O. heterotomus ); 1 ♂ [ NHMW] (misidentified by A. Foerster as O. insignis ); 2 ♂ [ NHMW] (misidentified by A. Foerster as O. insignis ). Köln [1 ♂, NHMW] (labeled by A. Foerster as “ O. apicalis ” 1 and identified by W. Soyka as O. atroflavus ). Leverkusen, 1–8.x.1965, M. Boness [1 ♀, NHMW]. ITALY. PIEDMONT, NOVARA, W of Lago d'Orta, Arola-Civiasco, Osca, 780 m, 4.x.1991, H. Baur [1 ♂, CNCI]. JAPAN. Honshu Island, AICHI, Mt. Chausu, 1300 m, 9.vii.1995, K. Yamagishi [1 ♀, CNCI]. KYRGYZSTAN. CHUY: W of Ak-Tyuz, 42°53'23''N 76°09'33''E, 2420 m, 26.vii.2000, C.H. Dietrich [1 ♂, UCRC]. Suusamyr Valley, W side of Kichi-Korumdy River, 42°13'28''N 73°41'31''E, 2291 m, 16.viii.1998, C.H. Dietrich [10 ♀, 4 ♂, UCRC]. Karagajly-Bulak, 9 km W of Ak-Tyuz, 42°52'47''N 76°02'13''E, 2180–3400 m, 26.vii.2000, C.H. Dietrich [1 ♂, UCRC]. NARYN, Alabuga River, 25 km W of Baetovo, 41°17'47''N 74°39'20''E, 1700 m, 16.vii.2000, C.H. Dietrich [14 ♂, UCRC]. NETHERLANDS. GELDERLAND, Wageningen, 26.vii.1978, L. Huggert [2 ♂, CNCI]. POLAND. ŁÓDŻ, Skierniewice, 1920s, S. Novicky [1 ♂, NHMW] 2. LOWER SILESIA,?Pirchau [in former German Schlesien] (near Wrocław), 24.ix.1933, J. Stammer [1 ♀, NHMW]. RUSSIA. MOSK- OVSKAYA OBLAST’, NOGINSKIY RAYON, Fryazevo, M.E. Tretiakov: 26.vii–14.viii.2000 [2 ♀, UCRC]; 23.viii.2000 [2 ♀, UCRC, ZIN]. PRIMORSKIY KRAY, Gornotayozhnoye (18 km SE of Ussuriysk), 43.66°N 132.25°E, 200 m, M.V. Michailovskaya: 15–16.vi.1999 [1 ♀, UCRC]; 19–20.vii.1999 [1 ♀, UCRC]; 24.vii– 1.viii.1999 [1 ♀, UCRC]; 5–11.viii.1999 [2 ♀, IBPV, UCRC]; 1–10.viii.2000 [2 ♀, IBPV, UCRC]; 10– 19.vii.2002 [1 ♀, UCRC]; 1–11.ix.2002 [1 ♀, UCRC]. SAMARSKAYA OBLAST’, Zhiguli, Shiryaevo, 16.vii.1985, V.A. Trjapitzin [2 ♂, ZIN]. STAVROPOL’SKIY KRAY, Prietokskiy (ca. 43°59’N 43°26’E, ca. 420 m), 7.ix.2002, V.V. Kostjukov [1 ♀, UCRC]. SWEDEN. GÄVLEBORG, Norrbyn, 30.viii–23.ix.1978, L. Huggert [1 ♀, 3 ♂, CNCI]. KALMAR, Öland Island, Stenasa, 7–11.viii.1986, N. Ryrholm [2 ♀, CNCI]. VÄSTERBOTTEN, Torrböle, 30.viii.1978, L. Huggert [1 ♀, CNCI]. SWITZERLAND. BERNE: Kandersteg: Holzspicherwald, 1680 m, 21.viii.1991, H. Baur [1 ♀, CNCI]; S Sunnbüel, 1900 m, 5.ix.1991, H. Baur [1 ♀, 2 ♂, CNCI]. ZÜRICH, Dielsdorf, 650 m, 17.viii.1984, L. Masner [1 ♀, 2 ♂, CNCI]. UNITED KING- DOM. ENGLAND: BUCKINGHAMSHIRE, Burnham Beeches, 26.viii.1984, L. Masner [2 ♀, 1 ♂, CNCI]. CUMBRIA, Kentmere, Skeggles Water, 300 m, 13.viii.1983, M.J. Matthews [1 ♀, 1 ♂, BMNH]. DEVON, Dartmoor, Haytor, 1300', 9.ix.1960, J.R. Vockeroth [1 ♀, 1 ♂, CNCI]. DORSET, Bournemouth, S.G.C. Brown: ix.1981 [1 ♀, BMNH]; 8.x.1981 [1 ♀, BMNH]; x.1981 [1 ♀, BMNH]; 1982 [1 ♀, BMNH]. LIN- COLNSHIRE, Maseham, Moorside (near Fulsby Wood), 22–25.viii.1986, J.S. Noyes [1 ♀, CNCI]. SURREY: Box Hill (near Dorking): 28.viii.1982, E.E. Grissell [2 ♀, USNM]; 4.ix.1988, S.L. Heydon [1 ♀, UCDC]; 4.ix.1988, J.S. Noyes [1 ♀, CNCI]. White Downs (near Dorking), 21.ix.1986, J.S. Noyes [1 ♂, CNCI]. Richmond Park, J.S. Noyes: 28.vii.1995 [1 ♀, 2 ♂, CNCI]; 15.viii.1997 [2 ♂, CNCI, UCRC]; 10.x.1982 [1 ♀, 1 ♂, BMNH]. WALES: DENBIGH, Abergele Coed y Gopa, 27.vii.1999, J.S. Noyes [1 ♂, CNCI]. GLAMORGAN: Kenfig Pool National Nature Reserve, J.S. Noyes: 6.viii.1988 [2 ♀, 9 ♂, CNCI, UCRC]; 18.viii.1988 [1 ♀, CNCI]; 4.viii.1994 [12 ♀, 7 ♂, CNCI, UCRC]; 31.viii.1995 [3 ♀, 2 ♂, CNCI]; 18.viii.1998 [2 ♀, CNCI]. Oxwich National Nature Reserve, 5.viii.1994, J.S. Noyes [3 ♀, 1 ♂, CNCI]. Whiteford Burrows National Nature Reserve, 2.viii.1988, J.S. Noyes [3 ♀, 7 ♂, CNCI, UCRC].

Extralimital records. USA. ALASKA, FAIRBANKS NORTH STAR, Fairbanks , 18.vii.1985, H. Andersen [1 ♀, UCRC] . CALIFORNIA, ALAMEDA, Albany, “Insectary” (= the former University of California, Berkeley insectary), 11.x.1978 [1 ♀, EMEC] . MONTANA, FLATHEAD, West Glacier , 25–29.vii.1988, H.E. Andersen [1 ♀, 2 ♂, UCRC] . OREGON, CURRY, Timeus Ranch (near Brookings ), 42°06’N 124°17’ W, 462 m, 23–30.vii.1995, M.S. Wasbauer [1 ♀, 1 ♂, UCDC] . WASHINGTON, THURSTON, Olympia, Evergreen State College Organic Farm, J. Longino: 25–27.ix.1996 [1 ♀, UCRC]; 6–13.vi.1997 [1 ♀, 1 ♂, UCRC] .

Redescription. FEMALE (primary and secondary types of the synonyms, and non-type specimens). Body length 760–1350 µm. Head and mesosoma dark brown or black except eyes and ocelli pale or dirty pink; petiole pale to yellow or yellowish brown; gaster yellowish or light to dark brown [sometimes base or basal two-thirds of gaster “reddish” according to Graham (1982); I have not seen specimens with partially reddish gasters, rather the base, most (except apically), or the entire gaster sometimes yellowish or light brown]; scape and pedicel mostly light brown, flagellum dark brown; legs yellowish or light brown.

Head wider than mesosoma; vertex and lower face with reticulate sculpture.

Antenna ( Fig. 38 ) with radicle 0.21–0.24x length of scape, remainder of scape 4.4–4.5x as long as wide, a little wider medially than basally or apically, longitudinally striate; pedicel longer than F1; all funicle segments longer than wide, F1–F3 subequal in length, F4 and F6 slightly shorter and F5, F7, and F8 a little longer and notably wider (F5 the longest funicle segment), mps on F5 (2), F7 (2), and F8 (2); clava 2.6–3.0x as long as wide, about as long or little shorter than scape plus radicle, almost as long or a little shorter than combined length of F5–F8 and about as long or a little longer than combined length of F1–F4, with 7 mps [rather than with 6 mps according to Pricop (2008)].

Mesosoma ( Figs 39 , 43 ) with pronotum weakly sculptured; mesoscutum and scutellum with reticulate sculpture (the cells smaller and less conspicuous on anterior scutellum); metanotum smooth, with posterior margin broadly rounded; propodeum ( Fig. 40 ) mostly smooth, with large median areole extending to or almost to anterior margin of propodeum, thus median carina very short or completely absent; lateral carinae parallel, extending to anterior margin of propodeum.

Forewing ( Fig. 41 ) 2.8–3.1x as long as wide; disc with very slight brownish tinge throughout (almost hyaline), densely setose but bare behind base of submarginal vein, truncate apically; longest marginal seta 0.16– 0.19x greatest width of wing. Hind wing ( Fig. 42 ) 15–16x as long as wide; disc with a very slight brownish tinge (almost hyaline) and densely setose throughout except for sparser setae behind apex of venation; longest marginal seta 1.6–2.2x greatest width of wing.

Pro- and mesocoxae almost smooth, metacoxa with weak sculpture.

Gaster a little longer than mesosoma; petiole 2.7–3.0x as long as wide, smooth, about as long as metacoxa; ovipositor occupying about 0.9x length of gaster, barely exserted beyond apex of gaster (by less than 0.1x own length), 1.1–1.4x length of metatibia.

MALE (secondary types of the synonyms and non-type specimens). Body length 790–1190 µm. Similar to female except for the normal sexually dimorphic features and the following. Antenna ( Fig. 44 ) with scape plus radicle 5.0–5.4x as long as wide, flagellum dark brown; posterior part of mesosoma as in Fig. 45 ; forewing ( Fig. 47 ) 2.7–3.0x as long as wide, strongly truncate apically; legs sometimes a little darker than in female (particularly femora with some brown basally); genitalia as in Fig. 46 .

Diagnosis. Ooctonus notatus is characterized by the following combination: F5, F7, and F8 of the female antenna with mps, scutellum with reticulate sculpture, and the propodeum with a large median areole extending to or almost to its anterior margin.

Distribution. PALAEARCTIC: Austria, Belgium, France *, Georgia*, Germany, Italy, Japan *, Kyrgyzstan *, Netherlands *, Poland, Russia, Sweden, Switzerland *, UK ( England, Wales *); unconfirmed records (no material has been examined): Bulgaria ( Donev 1983) [as O. heterotomus ], Czech Republic ( Noyes 2003), Denmark ( Bakkendorf 1934), Finland ( Hellén 1974) [as O. heterotomus ], Ireland ( Walker 1846), Norway ( Mathot 1969; Hellén 1974) [as O. heterotomus ], and Romania ( Pricop 2008). NEARCTIC*: Canada *, USA * (including Alaska).

Host. Eggs of an unknown “?hemipterous” insect on Baldingera arundinacea ( Bakkendorf 1934) .

Figures

FIGURE 43. Ooctonus notatus ♀ (Kenfig Pool National Nature Reserve, Wales): mesosoma (scanning electron micrograph).

FIGURES 38–42. Ooctonus notatus ♀ (Kenfig Pool National Nature Reserve, Wales): 38, antenna; 39, mesosoma; 40, posterior scutellum, metanotum, and propodeum; 41, forewing; 42, hind wing.

FIGURES 44–47. Ooctonus notatus ♂ (Richmond Park, Surrey, England): 44, antenna; 45, posterior scutellum, metanotum, and propodeum; 46, genitalia; 47, forewing.