Eucharis ( Eucharis ) diaphana Gussakovskij

Eucharis ( Eucharis) diaphana Gussakovskij View in CoL

( Figures 4–5 View Figure 4 View Figure 5 )

Materials examined

IRAN: West Azarabaijan, Urmia , ( 37.1014°N, 44.1022°E; 1358 m asl), 18 August 2019, SN, Y GoogleMaps . Karimpour leg GoogleMaps ., 1 ♀; deposited in HMIM.

Diagnosis

Body pale yellow ( Figure 4 View Figure 4 (A)), with a pair of metallic spots on mid and lateral lobes of mesonotum, axillae, posterior lobes of mesoscutellum and propodeum ( Figure 5 View Figure 5 (B)); head smooth and shiny with metallic green iridescence ( Figure 4 View Figure 4 (B)); antennal funicle with 7 funiculars ( Figure 5 View Figure 5 (C)); mesoscutellum densely punctate, with a posterior asymmetrical bidentate process ( Figure 5 View Figure 5 (B)); petiole relatively long, 1.4× as long as broad and 1.3× as long as metacoxa ( Figure 5 View Figure 5 (D)).

The species is closely related to Eucharis hyalina Gussakovskij, 1940 , both have the mesoscutum partly smooth and metallic medially, the female antennal flagellum almost cylindrical and a smooth and shiny head. In E. diaphana the anterior of the mesoscutal midlobe is transversely strigose ( Figure 5 View Figure 5 (B)) (vs finely transverse furrowed in E. hyalina ); the head does not exhibit impressions other than the antennal toruli ( Figure 4 View Figure 4 (B)) (vs with elongate impressions besides of antennal toruli in E. hyalina ); the mesoscutellum is medially impressed and bears posteriorly an asymmetrical bidentate process ( Figure 5 View Figure 5 (B)) (vs with distinct longitudinal median furrow and posteriorly with a unique process in E. hyalina ); metasoma concolorous with mesosoma, with narrow brown bordering ( Figure 4 View Figure 4 (A)) (vs metasoma darker than mesosoma with wider brown bordering in E. hyalina ).

Redescription (female). ( Figure 4A View Figure 4 ). Body length (based on Iranian materials) 3.16 mm, fore wing length 1.2 mm.

Colouration. Body pale yellow ( Figure 4 View Figure 4 (A)), head metallic green ( Figure 4 View Figure 4 (B)), mesonotum and notauli medially with metallic spots ( Figure 5 View Figure 5 (B)); funiculars brown, with yellow scape, pedicel and clava ( Figure 5 View Figure 5 (C)); mesopleuron ventrally metallic green ( Figure 5 View Figure 5 (A)); propodeum with a pair of submedian brown spots ( Figure 5 View Figure 5 (D)); metacoxal anteriorly metallic green ( Figure 5 View Figure 5 (A)); gastral tergites posteriorly with a pale brown band ( Figure 4 View Figure 4 (A)); wings hyaline, venation whitish ( Figure 5 View Figure 5 (E)).

Head. ( Figure 4B View Figure 4 ). Head 1.6× broader than high in frontal view; entirely smooth and shiny, with a few scattered micropunctations; scrobal depression impressed and wide, 1.4× as wide as preorbital area; occiput smooth, with sparse setiferous punction, dorsal margin abrupt, occipital margin non-carinate; eyes separated by 1.8× their height; ocelli forming an angle of about 160°; OOL about 1.3× as long as AOD, POL about 3× as long as AOD, OCL about 0.3× as long as AOD, LOL as long as AOD, POL about 2.3× as long as OOL ( Figure 5 View Figure 5 (B)); malar space 0.25× eye height, supraclypeal area slightly swollen, and demarcated laterally by shallow sulcus; clypeus smooth ( Figure 4 View Figure 4 (B)).

Antenna. ( Figure 5C View Figure 5 ). Antenna with 10 antennomeres; scape 1.8× as long as broad, smooth; pedicel globose, 0.6× as long as broad; flagellum 0.93× as long as head width; 7 funiculars, Fu 1 long, about 2.4× as long as broad, Fu 2 1.25× as long as broad, Fu 3 1.17× as long as broad, Fu 4 -Fu 6 as long as broad, Fu 7 about 0.86× as long as broad; clava rounded at apex, clavomeres fused, 1.9× as long as broad.

Mesosoma. ( Figure 5A–B View Figure 5 ). Mesosoma setiferous punctate, with a few scattered micropunctations ( Figure 5 View Figure 5 (B)); pronotum abutting mesoscutum; mesoscutum broadly rounded, convex, with anterior margin abrupt postero-laterally and only slightly extended over tegula; mid and lateral lobes of mesonotum medially smooth, mid lobe anteriorly transversely strigose ( Figure 5 View Figure 5 (B)); notauli present, shallow, reaching each other posteriorly; mesoscutoscutellar sulcus transverse, distinct; mesoscutellum densely punctate, medially impressed, posteriorly asymmetrically bidentate process, axilla smooth ( Figure 5 View Figure 5 (B)); frenal line present laterally; propodeal spiracle distinctly separated from dorsal margin, spiracle circular and very small ( Figure 5 View Figure 5 (D)); propodeum broadly rounded and rugose-areolate with a broader pattern of sculpture medially; triangular prepectus large, narrowly separated from tegula ( Figure 5 View Figure 5 (A)); mesepimeron transversely strigose, mesepisternum smooth ventrally; spiracle broadly enclosed and surrounded by circular carina. All coxa globose, mainly smooth ( Figure 5 View Figure 5 (A)); metatibia with 1 spur. Fore wing ( Figure 5 View Figure 5 (E)) 2.1× as long as broad, venation slightly distinct, mv about 0.5× as long as costal cell, stv ovoid, pmv indistinct; fore wing with scattered microsetae, no marginal fringe; hind wing venation complete medially, fringe absent.

Metasoma. ( Figure 4A View Figure 4 ). Petiole relatively long, 1.4× as long as broad and 1.3× as long as metacoxa, longitudinally rugulose dorsally ( Figure 5 View Figure 5 (D)); Gt 1 large, covering about 0.75 of gaster; hypopygium with several long hairs on each side of midline.

Male

Unknown

Distribution

Russia, Turkmenistan ( Gussakovskij 1940) and Iran (new record).

Distribution in Iran

West Azarbaijan province.

Hosts

Unknown. The specimen was swept in barren, non-cultivated land.