Dilyta subclavata Förster, 1869

Ferrer-Suay, Mar, Selfa, Jesús & Pujade-Villar, Juli, 2018, Palaearctic species of Charipinae (Hymenoptera, Figitidae): two new species, synthesis and identification key, European Journal of Taxonomy 427, pp. 1-110 : 84-85

Dilyta subclavata Förster, 1869

Fig. 6.6

Dilyta subclavata Förster, 1869: 338 . Type: deposited in NMW (examined).

Alloxysta (Alloxysta) subclavata – Dalla Torre & Kieffer 1910: 255.

Dilyta subclavata – Hellén 1963: 5.

Diagnosis

Dilyta subclavata is mainly characterized by a punctate area on the posterior part of the metasoma; female antenna slightly clavate from F6 with F1 slightly shorter than or subequal to pedicel, F2 subequal to F3, F4 slightly shorter than F1 but longer than F2 and F3, and sensilla beginning on F6–F7 (Fig. 6.6); male antenna slightly clavate from F4 with F1 slightly longer than pedicel and sometimes slightly arched, F2 shorter than F1 and F3, F3 shorter than F1, F1 subequal to F4, F4–F12 wider than previous segments, and sensilla beginning on F4. It is similar to D. longinqua , but can be differentiated by the proportions of the flagellomere (F1 is subequal to pedicel or slightly longer, F2 is shorter than F3, F3 is shorter than F4, antenna are slightly clavate from F6, and sensilla begin on F 6 in D. longinqua females (Fig. 6.3), while F1 is subequal to pedicel, F2 is shorter than F1 or F3, F3 is subequal to F1, F3–F12 are wider than the previous flagellomeres, antenna are slightly clavate from F3, and sensilla begin on F 3 in males of D. longinqua ).

Material examined

Lectotype

GERMANY: 2 ♀♀, on one pin [Först.; Collect. G Mayr], [ Dil. subclavata Förster , Type; Dilyta subclavata Frst. ], [ Dilyta subclavata Förster 2♀♀ det. H.H. Evenhuis 1976 (orange)], [das rechte Weibchen wäre als Lektotypus zu wählen H.H. Evenhuis (orange)] ( NMW).

Additional specimens (5 ♂♂, 25 ♀♀)

AUSTRIA: 1 ♂ [Ex Gelechia musco sel Z, Merkestein, 29 Jun. 1959, C Jan. L.B. Coll. No. 43.64, Alloxysta (Först) Hellén ? sp. det. J. Quinlan, 1965] ( BMNH) (handwritten).

FRANCE: 1 ♂, 1 ♀ [Avignon (Vancluse), 13 May 1981, Ex Psylla pyri on pear trees, Collector: F. Herard, European Parasite Lab. V.S.D.A. Sèvres, Dilyta subclavata ♀ Forst. det J. Quinlan, 1982] ( BMNH).

GERMANY: 1 ♂ [Schwarzwald, Todtmoos environs, 6 Aug. 1984, L. Masner, screen sweeping] ( CNCI C-235) .

JAPAN: 1 ♀ [Hokkaido, 20 km N. Akkeshi, marsh, 100 m, 15 Jul. 1996, L. Masner, sweep] ( CNCI C-160).

NETHERLANDS: 1 ♂, 1 ♀ [Langbrock (prov. Wfrecht), 10 Jun. 1976, collected from leaf of Fraxinus excelsis leg H.H. Evenhuis, near colony of Psyllopsis fraxini (Hom., Psyllidae ) (handwritten), ♂, Dilyta subclavata Förster det. H.H. Evenhuis 1976] ( BMNH).

NORWAY: 1 ♂, 1 ♀ [Hoy Fauna Lonningen, 15 Aug. 1980, F. Jelosa] ( BMNH); 1 ♀ [Kronli, Falkflanf, Nsy: Bodø 14 Jul. 1980, A. Fjeldsa leg] ( BMNH).

POLAND: 4 ♀♀ [Borowki, N.W. Poland, 16–28 Sep. 1934, G.J. Kerrich] ( BMNH).

RUSSIA: 14 ♀♀ [Russian Far East, Primorskii Krai Lazovski Zapovednik, c. 170 Km E, Vladivostok, Lazo, 43°30′33″ N, 134°06′59″ E, 1375 m, 2 Jun.–3 Jul. 2001, mountain top, Malaise trap 458, M. Quest coll., Dilyta subclavata det. M. Forshage 2012] ( BMNH B.M. 2009-59).

SPAIN: 1 ♀ [Madrid, Vaciamadrid, 19 Oct. 1978, J.S. Noyes] ( BMNH B.M. 1978-488).

SWEDEN: 1 ♀ [Sö, Sandemars slott, T.H. and J.Q., Aug. 1976] ( BMNH) .

Distribution

Holarctic.

Certain records: Germany ( Förster 1869: 338), Hungary ( Fülöp et al. 2010: 54), Norway (Paretas-Martínez et al. 2011a: 36), Peninsular Spain ( Nieves-Aldrey et al. 2003: 39), The Netherlands (Paretas-Martínez et al. 2011a: 36), USA ( Paretas-Martínez et al. 2011 a: 36).

Uncertain records: England ( Marshall 1870: 181; Fergusson 1986: 16), Finland ( Hellén 1963: 5), France ( De Gaulle 1908: 26; Dalla Torre & Kieffer 1910: 255), Ireland ( Marshall 1870: 181), Moldova ( Belizin 1966: 7), Poland ( Kierych 1979a: 458), Romania (Feraru & Mustata 2005: 75), Sweden ( Thomson 1877: 814; Hellén 1963: 5).

New records: Austria, Japan, Norway and Russia.