Pseudomalus agnolii Rosa, 2017

Rosa, P., Lelej, A. S., Proshchalykin, M. Yu., Loktionov, V. M. & Mokrousov, M. V., 2017, New records of Chrysididae (Hymenoptera) from Russia with description of five new species, Far Eastern Entomologist 345, pp. 1-33 : 4-8

Pseudomalus agnolii Rosa , sp. n.

Figs 1B , 2A–F

SPECIMENS EXAMINED. Holotype – ♀, Russia: centre of European part:

Tver Prov., Kimry distr., Shchelkovo vill., 20.VII–10.VIII 2015 (A. Azarov) [ZIN].

DIAGNOSIS. Pseudomalus agnolii sp. n. is a remarkable species, easily iden-

tifiable by large size (8 mm), forefemur strongly carinate ( Fig. 2B ), flagellomeres elongate ( Fig. 2A ), T3 apical margin deeply notched ( Fig. 2F ). P. agnolii sp. n. and

P. grandis (Tsuneki, 1950) are indeed the largest known species in the genus Pseudomalus . P. agnolii sp. n. can be separated by bicoloured body ( Fig. 1 ) (entirely green in P. grandis ), forefemur carinate ( Fig. 2B ) (vs. ecarinate) and apical margin of T3 deeply incised ( Fig. 2F ) (vs. T3 with shallow, barely visible notch). The forefemur largely carinate is similar in shape to the forefemur of P. cupratus (Mocsáry,

1889) (= P. meridianus Strumia, 1996 ), from which P. agnolii sp. n. is separated by elongate flagellomeres (F2–F11 l/w = 1.5) ( Fig. 2A ) (vs. subsquare in P. cupratus ),

propodeal angles subrectangular with parallel sides (vs. divergent and pointed in Ps.

cupratus ) and mesosoma punctuation (denser in P. cupratus ). It also resembles the largest specimens of P. auratus (Linnaeus, 1758) , but can be separated for: elongate flagellomeres (l/w = 1.5) (vs. l/w = 1.0), carinate forefemur (vs. ecarinate) and larger size (the largest known specimens of P. auratus reach 6.0 mm). It is separated from

P. triangulifer (Abeille de Perrin, 1877) for the carinate forefemur (vs. ecarinate), a little larger dimensions (the largest known specimens of P. triangulifer reach 7.0 mm)

and mesosoma with irregular wrinkles on interspaces.

DESCRIPTION. Female. Body length 8.0 mm. Fore wing length 5.5 mm. OOL =

2.9 MOD; POL = 2.9 MOD; MS = 0.7 MOD; relative length of P: F1: F2: F3 = 1:

1.3: 0.9: 0.8.

Head. Frons, vertex, and face between eye and scapal basin with medium (0.4–

0.5 MOD), confluent punctures ( Fig. 2A ); in dorsal view, from ocelli area to posterior margin of head polished, with scattered and small punctures; around eye posteriorly finely wrinkled. Scapal basin asetose, deep, polished; clypeus transversally rugulose between toruli ( Fig. 2A ); subantennal space 1.0 MOD. Genae, in lateral view, finely wrinkled; ocellar triangle isosceles, with POL equal to OOL. Postocellar line indistinct.

Mesosoma. Pronotum medially with small, scattered punctures, 1–3 PD apart,

with minute punctures on interspaces ( Fig. 1C ); antero-laterally with larger, deeper and contiguous punctures ( Fig. 2B ). Mesoscutum with scattered, small punctures

(1–4 PD apart) on anterior half; basally with few scattered, large punctures between notauli, with irregular wrinkles on interspaces ( Fig. 2C ); lateral lobes of mesoscutum with small, shallow, scattered punctures, and wrinkled interspaces; along tegula with a row of foveate punctures; notauli pits short, deep, wide. Mesoscutellum anteromedially impunctate, posteriorly and laterally with large, sub-equal and contiguous punctures. Metascutellum subconical in dorso-lateral view, with foveate-reticulate punctures. Mesopleuron medially with moderately large punctures and weak wrinkles on interspaces; ventrally with large and elongate foveae ( Fig. 2B ). Forefemur ventrally noticeably carinate ( Fig. 2D ).

Metasoma. T1 medially polished, with minute punctures irregularly distributed along posterior margin, laterally with double punctuation: with minute, asetose punctures and small, setae-bearing, lacunose punctures. T2 and T3 dorsally with minute punctures, postero-laterally and laterally with double punctuation, with minute, asetose punctures and small, setae-bearing, lacunose punctures. T3 lateral margins straight; median notch deep, open at obtuse angle, lateral angles with blunt apex.

Coloration. Forebody metallic green to blue; metasoma flame red, T2 anteromedially and postero-medially black ( Fig. 1B ). Scape, pedicel, F1 and F2 metallic green, other flagellomeres black. Legs metallic green to blue, tarsi dark brown.

Tegulae metallic bluish. Wings brownish, dark brown along external margin.

Vestiture. Medium-short (1.0–1.5 MOD), whitish, erected, sparse setae on head and mesosoma, denser on pronotum; shorter (1 MOD) and appressed on legs, erect on mid- and hindtibia. T1 and T2 laterally with medium-short erect setae, on T3

longer (2.0 MOD) and erect.

Male. Unknown.

DISTRIBUTION. Russia (Tver Province).

lateral view; C – mesosoma, dorsal view; D – fore leg, posterior view; E – metasoma, lateral view; F – metasoma, postero-lateral view. Scale bar = 1.0 mm.

ETYMOLOGY. The specific epithet agnolii (masculine name in genitive case)

is dedicated to Gian Luca Agnoli (Bologna, Italy), former owner of the holotype ,

who generously donated it to the ZIN collection.

Figures

Fig. 1. Habitus, dorsal view. A – Pseudomalus grandis (Tsuneki), Primorksy Terr., ♀; B – P. agnolii Rosa, sp. n., holotype, ♀. Scale bar = 1.0 mm.

Fig. 2. Pseudomalus agnolii sp. n., holotype, ♀: A – head, frontal view; B – mesosoma,