Philoctetes cynthiae Rosa, 2017

Rosa, P., Proshchalykin, M. Yu., Lelej, A. S. & Loktionov, V. M., 2017, Contribution to the Siberian Chrysididae (Hymenoptera). Part 1., Far Eastern Entomologist 341 (341), pp. 1-44 : 35-37

Philoctetes cynthiae Rosa sp. n.

Figs 16A–F , 17A–F , 19G

SPECIMENS EXAMINED. Holotype – ♀, Russia: Tuva Rep., 13 km SW

Samagaltai, Dyttyg-Khem River , 9.VII 2013 (VL, MP) [ZIN]. Allotype – ♂, Tuva

Rep., 13 km SW Samagaltai, Dyttyg-Khem River, 9.VII 2013 (VL, MP) [ZIN].

Paratypes: Tuva Rep.: 20 km SSW Erzin, Tore-Khol’ Lake , 1–3.VII 2013, 8 ♀, 5 ♂

(VL, MP); 25 km SE Erzin, Tes-Khem River , 5.VII 2013, 1 ♂ (VL, MP); 13 km

SW Samagaltai, Dyttyg-Khem River, 8–10.VII 2013, 5 ♀, 15 ♂ (VL, MP); idem,

19.VI 2014, 1 ♀ (AL, MP, VL) [IBSS]. Mongolia: SE Mongolia, 200 km SSE

Baruun-Urt Moltsoy Els, 1250m, 27.VII 2007, 1 ♀ (M. Kadlecová) [ PRC] .

DIAGNOSIS. Philoctetes cynthiae sp. n. is closely related to Ph. mongolicus

(du Buysson, 1901). The male can be easily separated for the following features:

body color uniformly metallic green to brass, in some specimens darker to blackish dorso-medially on T2; partly bronze on mesoscutellum and metanotum, more or less also on propodeum and mesopleuron, mesoscutum bright without dark, lusterless areas, tegulae non-metallic ( Fig. 17C ) (vs. body entirely red to dark red or coppery,

with broad dull areas on mesosoma and dorsally on metasoma, tegulae metallic red in Ph. mongolicus Fig. 19C); genitalia with stout gonocoxae (Fig. 19G) (vs. genitalia with elongate gonocoxae (Fig. 19F)); T2, laterally and posteriorly, and T3 with punctuation irregular, double, rugulose and somewhere lacunose, with confluent punctures (vs. even punctures with tiny, shallow dots). Female body color from greenish with bronze or coppery reflections to red and golden-red (purplish-red in the Mongolian paratype), without dark, lusterless areas on mesosoma, tegulae nonmetallic (Fig. 19C) (vs. body entirely dark red, with extensive dark, dull areas medially extended on mesosoma and dorsally on metasoma; tegulae metallic red

(see Rosa et al. 2015)); F1 short (l/w = 2) (vs. F1 elongate (l/w = 2.6); punctuation similar to the male. Ph. cynthiae sp. n. is also somewhat similar to Ph. lyubae sp. n.

through the greenish-bronze body color and the metascutellum with elongate subtriangular lamella, but it can be separated through smaller size (3–4 mm) (vs.>

5.0 mm); scapal basin irregularly rugulose (vs. fully polished); in lateral view,

lamella as long as mesoscutellum width (vs. longer than mesoscutellum width);

body color variable, yet uniform (vs. metasoma more golden, contrasting in color with forebody in Ph. lyubae ( Fig. 18F )).

DESCRIPTION. Body length 3–4 mm. Fore wing length 2.7– 3 mm. Female.

OOL = 2.1 MOD; POL = 2.7 MOD; MS = 1 MOD; relative length of P: F1: F2:

F3 = 1: 1.2: 0.9: 0.8.

Head. Frons, vertex, face between eye and scapal basin with medium-large (up to 1 MOD), shallow punctures ( Fig. 16A ), widely separate (1–3 PD). Punctures on post-ocellar vertex smaller, aligned along posterior edge, with large impunctate areas (up to 3 PD) behind posterior ocelli. Scapal basin asetose, deep, irregularly rugulose ( Fig. 16A ). Gena with large punctures (0.5 MOD) and wrinkles along margin. Genal carina relatively sharp, not bisecting MS. Ocellar triangle isosceles,

with large POL (2.7 MOD). Postocellar line obsolete.

and mesosoma, lateral view; C – mesosoma, dorsal view; D – metasoma, dorsal view; E –

metasoma, lateral view; F – T3, postero-lateral view. Scale bar = 0.5 mm.

Mesosoma. Pronotum medially polished, with small punctures, anteriorly sparse, along the posterior margin in a row; laterally with deep and closer punctures. Mesoscutum with shallow punctures clumped along notauli and between parapsidal furrow and lateral margin before tegulae ( Fig. 16C ), growing in size posteriorly (0.3–0.75 MOD). Notauli and parapsidal furrows complete.

Mesoscutellum antero-medially largely impunctate, laterally and posteriorly with foveate punctures. Metascutellum with foveate-reticulate punctures and subtriangular lamella; in lateral view, lamella about as long as mesoscutellum ( Fig.

16B). Mesopleuron with foveate-subreticulate punctures. Tarsal claw with four teeth, the basal one reduced.

Metasoma. T1 impunctate, with a row of fine, spare punctures along posterior margin, and scattered punctures laterally. T2 dorsally with even, small punctures

( Fig. 16D ), laterally and posteriorly with double punctuation, as well as on T3 (Figs

16E, 16F), the largest punctures deep, lacunose, partially confluent. T3 lateral margins almost straight, weakly undulate before apical notch, with narrow brownish rim; T3 median notch obtuse and small, less than 1 MOD deep (around 0.75 MOD or even less), round at apex.

Coloration. Body color uniformly green with bronze or coppery reflections, some specimens more or less entirely with red and golden-red color or reflections, anyway without black areas on mesosoma; tegulae non-metallic. Scape and pedicel metallic green, flagellomeres blackish. Legs metallic green, tarsi brown to rusty-brown. Wings distinctly brownish, with fine mother-of-pearls wrinkles on outer half.

Vestiture. Long, whitish, sparse, erected setae on head, mesosoma, femur, T2

laterally, and T3.

Male. Similar to female, generally with darker and greenish coloration, not extensively reddish or coppery. Tarsi light brown. Genitalia as in Fig. 19G, with stout gonocoxae. T3 median notch generally less deeply incised than in female.

DISTRIBUTION. Russia (Tuva Rep.); Mongolia.

ETYMOLOGY. The specific epithet cynthiae (feminine noun in genitive case)

is dedicated to Cinzia Monte (Florence, Italy), acknowledged entomologist, who kindly supported the editorial work of the first author.

Figures

Fig. 16. Philoctetes cynthiae Rosa, sp. n., holotype ♀: A – head, frontal view; B – head

Fig. 17. Philoctetes cynthiae Rosa, sp. n., allotype ♂: A – head, frontal view; B – head

Fig. 18. Philoctetes lyubae Rosa, sp. n., holotype ♀: A – head, frontal view; B –