Anaphes (Anaphes) stygius Debauche, 1948

Triapitsyn, S. V., 2021, Review of the genus Anaphes Haliday, 1833 (Hymenoptera: Mymaridae) in Russia, part 1: subgenus Anaphes s. str., Far Eastern Entomologist 432, pp. 1-48 : 43-45

Anaphes (Anaphes) stygius Debauche, 1948

Figs 96–99 Anaphes (Anaphes) stygius Debauche, 1948: 165–166 , plates XVI–XVII (illustrations).

Anaphes stygius Debauche : Huber, 1992: 76 (list).

Anaphes (Anaphes) stygius Debauche : Huber & Thuróczy, 2018: 27 (list, type information),

45 (key), 95 (illustration); Triapitsyn et al., 2020: 570 (record from Finland, distribution).

MATERIAL EXAMINED. Russia: Dagestan, Botlikhskiy rayon, Botlikh , 11.IX 2003

( V. V. Kostjukov) [1 ♀, UCRC]. Moskovskaya oblast’, Noginskiy rayon, Fryazevo (M.E.

Tretiakov): 25.VI–2.VII 2000 [1 ♀, UCRC]; 20.VII 2001 [1 ♀, UCRC]; 14.VII 2002 [1 ♀,

UCRC]. Stavropol’skii krai, Prietokskiy, 14.VII 2003 ( V. V. Kostjukov) [1 ♀, UCRC] .

EXTRALIMITAL MATERIAL EXAMINED. Austria: Lower Austria, 1 km W of

Hollern, 48°04’22’’N 16°52’37’’E, 150 m, 16–17.VI 2007 (S. V. Triapitsyn, C. Thuróczy) [2

♀, UCRC]. Belgium: Liège , Wanze , Antheit, Corphalie, 28.VII–11.VIII 1989 ( R. Detry) [1

♀, ISNB ]. Walloon Brabant, Waterloo, in garden (P. Dessart): 30.VIII–9.IX 1992 [1 ♀,

ISNB]; 10–20.IX 1992 [2 ♀, ISNB]. France: Gard , Sainte-Eulalie, 96 m, 43°59’16’’N

04°17’53’’E, 10–12. VI 2005 (J. George) [2 ♀, UCRC] .

DIAGNOSIS. FEMALE (specimens from the European part of Russia, Austria, Belgium,

and France). Body length (slide-mounted specimens) 0.65–0.86 mm. Antenna ( Fig. 96 ) with scape (excluding radicle) 3.5–4.2× as long as wide, almost smooth; F3–F6 longer than pedicel, F2 3.5–4.2× as long as wide and usually about as long as but sometimes a little longer than pedicel, F3 and F4 the longest funiculars and usually subequal in length

(occasionally F4 slightly longer), F2 without mps and F3–F6 each with 2 mps; clava with 6

mps, 3.2–3.7× as long as wide, usually about as long as combined length of F5 and F6 but occasionally slightly shorter. Fore wing ( Fig. 97 ) 6.1–6.9× as long as wide; longest marginal seta 1.0–1.3× maximum wing width; marginal space separated from medial space by 1–2

lines of setae. Hind wing ( Fig. 97 ) 19–21× as long as wide; longest marginal seta 3.1–3.6×

maximum wing width, disc with 1–2 irregular rows of setae apically. Metatarsomere 1

slightly shorter than metatarsomere 2 ( Fig. 99 ). Ovipositor ( Fig. 98 ) occupying 0.8–0.9×

length of gaster (and thus not extending forward under mesosoma), not or at most barely exserted beyond apex of gaster posteriorly, and 0.9–1.1× length of metatibia.

MALE. Unknown.

DISTRIBUTION. Russia *; Austria *, Belgium, Bulgaria, Finland, France *, Greece. The records from Bulgaria and Greece (Noyes, 2019) need to be confirmed.

HOSTS. Unknown.

COMMENTS. I also examined the following specimen that keys to Anaphes (Anaphes)

stygius in Huber & Thuróczy (2018) but has a relatively longer F2: Hungary: Vas County,

W of Kőszeg , 47°23’09’’N 16°31’19’’E, 355 m, 16–20. VI 2009 (I. Mikó) [1 ♀, UCRC] .

Anaphes (Anaphes) stygius is not very well defined, being almost indistinguishable from

A. (Anaphes) regulus , so their possible conspecificity will need to be further investigated using molecular methods. For now, the only diagnostic morphological feature that might help separate them is the length of the clava relative to the combined length of F5 and F6 of the female antenna, as indicated in the key. Indeed, the two almost identical females captured during the same collecting event near Hollern, Lower Austria, Austria, key to both nominal species in Huber & Thuróczy (2018), one to A. (Anaphes) regulus and the other to A. (Anaphes)

stygius.

Vladimir V. Berezovskiy (UCRC) provided excellent technical assistance since 1999

when we started to study the fauna of Mymaridae of the Russian Far East, particularly with skillful point- and slide-mounting of specimens. Marina V. Michailovskaya (Saint Petersburg,

Russia, formerly at Mountain-Taiga Station, Far Eastern Branch of the Russian Academy of

Sciences, Gornotayozhnoye, Primorskii krai, Russia), Elisaveta Ya. Shouvakhina, Mikhail E.

Tretiakov, Vladimir A. Trjapitzin (Moscow, Russia), Viktor V. Kostjukov (All-Russian

Research Institute of Biological Plant Protection, Krasnodar, Krasnodarskii krai, Russia),

and many other collectors are gratefully acknowledged for collecting/donating specimens for this study. Toshiharu Mita (ELKU), Juho Paukkunen (FMNH), Ekaterina V. Tselikh (ZIN),

Ken Walker and Simon Hinkley (MVMA), and Robert L. Zuparko (CAS) arranged loans of specimens from the respective collections. Maxim Yu. Proshchalykin (IBPV) and Alexey A.

Polilov (Entomology Department, Moscow State University, Moscow, Russia) kindly provided information and digital images of the specimens of A. (Anaphes) nipponicus from Primorskii krai and A. (Patasson) silesicus from Moscovskaya oblast’, respectively. Martti Koponen

(Mikkeli, Finland) provided the missing label information on the specimens collected by

Wolter Hellén in Leningradskaya oblast’ of Russia. Jennifer D. Read and John T. Huber

(CNC) shared digital images of the female specimen of A. (Anaphes) alaskae from Canada,

and Peter T. Oboyski (EMEC) made available photographs of the holotype of this species.

Figures

Figs 96–99. Anaphes (Anaphes) stygius, female (Fryazevo, Noginskiy rayon, Moskovskaya oblast’, Russia). 96) Antenna, 97) wings, 98) ovipositor, 99) metatibia and metatarsus.