Hedychridium belokobylskiji Rosa, 2017

Rosa, P., Proshchalykin, M. Yu., Lelej, A. S. & Loktionov, V. M., 2017, Contribution to the Siberian Chrysididae (Hymenoptera). Part 2., Far Eastern Entomologist 342 (342), pp. 1-42 : 11-13

Hedychridium belokobylskiji Rosa , sp. n.

Figs 4A–F , 13C, D

SPECIMENS EXAMINED. Holotype – ♀, Russia: Tuva Rep., 12 km SW

Samagaltai , Dyttyg-Khem River, 19.VII 2014 (AL, MP, VL) [ ZIN]. Allotype – ♂,

Russia: Tuva Rep., 13 km SW Samagaltai, Dyttyg-Khem River , 9–10.VII 2013

(VL, MP) [ ZIN]. Paratypes: Russia: Khakassia Rep.: 21 km SW Abakan, Izykhskie

Kopi, 13.VII 2012, 5 ♀ ( MP, VL); Zhemchuzhnyi , Shira Lake, 14–15.VII 2012 , 1

♀ ( MP, VL); 20 km SW Abakan, Izykhskie Kopi , 7.VII 2014 , 1 ♀ ( MP, VL); Tuva

Rep.: 27 km SSW Erzin, Tore-Khol Lake , 12.VII 2014, 1 ♀ (AL, MP, VL); 25 km

SE Erzin , Tes-Khem River, 14.VII 2013, 1 ♀ ( VL, MP); idem, 14.VII 2014, 1 ♀ ;

12 km SW Samagaltai, Dyttyg-Khem River , 17.VII 2014, 6 ♀ (AL, MP, VL); 20

km SSW Erzin , Tore-Khol’ Lake, 3.VII 2013, 6 ♀, 7 ♂ ( VL, MP); Ubsu-Nur Lake ,

7.VII 2013, 2 ♀ ( MP, VL); 13 km SW Samagaltai, Dyttyg-Khem River , 9–10.VII

2013, 38 ♀ ( VL, MP); 30 km W Erzin, Yamaalyg , 4.VI 2013 , 3 ♀, 1 ♂ ( MP, VL) ;

6 km SE Bai-Khaak, Sosnovka , 21.VII 2014, 1 ♀ (AL, MP, VL); Krasnoyarsk

Terr.: 10 km NE Minusinsk, Malaya Minusa River , 7.VII 2012, 2 ♀ ( MP, VL) ;

idem, 8.VII 2014, 1 ♀, 1 ♂ (AL, MP, VL) [ IBSS] .

DIAGNOSIS. Hedychridium belokobylskiji sp. n. belongs to the ardens speciesgroup. The structure of male genitalia is similar to the genital capsule of H. ardens

(Coquebert, 1801) and H. aereolum sensu Linsenmaier, 1959 , for straight and elongate gonostyle and elongate volsella ( Figs 13C–D , vs. 13A); it is distinct for the narrower gonostyle, digitus as long as cuspis, and apex of cuspis larger and bent outwards. As for coloration pattern, it is similar to H. jucundum (Mocsáry, 1889)

because of the medially, large, delimited dull spot on T2. Nevertheless, the male can be separated through the genital capsule with elongate cuspis (vs. short in H.

jucundum ( Fig. 13B )); short and stout F1 (l/w = 1.7) (vs. l/w = 2.5); posterior margin head and mesosoma, lateral view; C – head and mesonotum, dorsal view; D – mesosoma,

dorsal view; E – metasoma, dorsal view; F – metasoma, lateral view. Scale bar = 0.5 mm.

of propodeum without spine before the propodeal tooth (vs. elongate spine halfway between base and propodeal tooth); metallic red base of metanotum, concolorous with mesonotum (vs. wholly blue or green metanotum, strongly contrasting with red mesonotum). The female can be separated through the metallic red base of metanotum, concolorous with mesonotum (vs. wholly blue or green metanotum, strongly contrasting with red mesonotum), elongate setae on margin of T3 (up to 2 MOD)

(vs. <1 MOD). It also shows some similarities with H. gussakovskii Semenov et

Nikol’skaya, 1954 (from Tajikistan), from which is separated through different coloration: in H. gussakovskii T2 is concolorous (vs. with a large, darker, well-

delimited spot; mesopleuron and legs green (vs. mesopleuron and legs red), metanotum wholly green, contrasting with mesoscutellum (vs. at least anteromedially red, not contrasting); punctuation on T2 dense, almost contiguous medially (vs.

punctuation with minute and sparse punctures, 1–3 PD apart).

DESCRIPTION. Body length 4.0–5.0 mm. Fore wing length 3.0–3,5 mm. Female. OOL = 2.2 MOD; POL = 1.7 MOD; MS = 0.5 MOD; relative length of P: F1

: F2: F3 = 1: 1.7: 0.8: 0.8.

Head. Frons and vertex with small to medium punctures (0.1–0.5 MOD), nearly contiguous; in frontal view, between scapal basin and eye gradually decreasing from frons to clypeus ( Fig. 4A ); scapal basin medially transversely microridged;

punctuation on post-ocellar vertex denser, with smaller punctures. Ocellar triangle isosceles; midocellus anteriorly sunken, posterior ocelli laterally sunken.

Mesosoma. Pronotum with punctuation irregularly sized, anteriorly and laterally mostly contiguous. Mesoscutum with similar punctuation, medially with large,

scattered punctures (1–2 PD apart). Mesoscutellum with similar punctures, partly longitudinal rugulose on interspaces. Metascutellum with foveate-reticulate punctures ( Fig. 4D ). Propodeal teeth triangular, acute, slightly pointing backward. Forewing medial vein more than twice as long as RS stub, medially arched.

Metasoma. T1 and T2 with minute, sparse punctures, 1–3 PD apart, larger, laterally denser. T3 with denser, deeper punctures; posterior margin with brownish rim

(0.2–0.3 MOD).

Coloration. Body metallic red; darker to purplish inside ocellar triangle, baso-

medially on pronotum, and more or less extensively on mesoscutum; face green;

metanotum anteriorly red, medially greenish and posteriorly blue; propodeum blue.

T2 with a large, delimited, bluish to blackish area; ventrally black, in a few specimens with a slight reddish hue medially on S2. Scape metallic red, pedicel with or without a distinct hue, flagellum black; legs red on outer side, greenish on inner side. Wings smoky.

Vestiture. Body dorsally covered by dense, whitish, long setae (1–1.5 MOD); on legs, metasoma laterally and ventrally with very long setae (> 2 MOD).

Male: similar to female, with face laterally covered with appressed, silvery setae; antennae elongate, with slender flagellum and cylindrical articles (l/ w 1.2 -1.5

instead of l/w ≈1); mesopleuron greenish. Genital capsule as in Figs 13C, D .

DISTRIBUTION. Russia (Krasnoyarsk Terr., Khakassia Rep., Tuva Rep.).

ETYMOLOGY. The specific epitheth belokobylskiji (masculine name in genitive case) is dedicated to Sergey A. Belokobylskij (St. Petersburg, Russia), curator of the Hymenoptera collection at ZIN, who supported the study of the Siberian and

Russian Chrysididae .

Figures

Fig. 4. Hedychridium belokobylskiji Rosa, sp. n., holotype, ♂: A – head, frontal view; B –

Fig. 13. Male genital capsule. A – Hedychridium ardens (Coquebert), Khakassia; B – H.