Mesochorus ( Stictopisthus ) russicus ( SCHWENKE , 1999)

Mesochorus ( Stictopisthus) russicus ( SCHWENKE, 1999) (fig. 16)

O r i g i n a l: Stictopisthus russicus SCHWENKE, 1999: 32 , ³.

H o l o t y p e: (³) “Kishinev/UdSSR [ Moldavia] 20.VI.08, Talitzkij” (ZSM), type examined.

D e s c r i p t i o n: ³. Body length 4.0 mm. Flagellum with 24-28 segments; 1 st flagellar segment 0.63× as long as eye; preapical segment 2.0× as long as wide. Temple moderately narrowed behind eye, dorsally 0.7× as long as eye. OED 1.2-1.3× and OOD 1.4× ocellar diameter. Face densely punctate, its width 1.1-1.2× combined length of face and clypeus and 1.1-1.2× eye length, sides parallel or slightly divergent ventrally. Mandible with two equal teeth. MI 0.6-0.8. Mesosoma moderately depressed, 1.8-2.1× as long as high. Mesoscutum densely punctate. Mesopleuron coarsely and densely punctate, shining. Propodeum completely carinate, but area basalis and area superomedia confluent. Area superomedia 1.5× as long as wide; costula reaching at its middle. Area petiolaris large, hexagonal, as long as wide. Hind femur 3.3-3.6× as long as wide. Areolet sessile frontally. Vein 1cu-a strongly postfurcal by 0.5-0.8× its length. Pterostigma 2.5-3.5× as long as wide. Distal part of metacarpus c 0.8× as long as width of pterostigma. Hind wing with 5 distal hamuli.

1 st tergite 2.2× as long as wide; postpetiole coarsely striate. 2 nd tergite 0.8-0.9× as long as wide. Thyridium transverse, comma-shaped. Stylet stick-shaped, not clubbed or pointed apically, 1.2-1.5× as long as 2 nd hind tarsomere.

Color: Head, pronotum and tegula yellow. Flagellum yellow basally, distal flagellomeres ± ochreous or brownish. Mesosoma reddish-yellow; mesoscutum with a median and two lateral ochreous or brownish stripes; propodeum brownish in basal 2/3. 1 st tergite black, usually reddish basally, 1 st sternite rufous in basal half. 2 nd tergite blackish, with large triangular yellow mark in apical 2/3. 3 rd tergite yellow, brown in apical 1/3-1/4; following tergites brownish, slightly vespoid. Legs yellow; hind tibia ivory, brownish in apical 0.1-0.2; hind tarsomeres ivory, with ± brownish tips. Pterostigma pale brownish, sometimes hyaline centrally.

♀ unknown. D i s t r i b u t i o n: Transpalaearctic; examined material from Moldavia, and Russia * ( St. Petersburg, Arkhangelsk region, Primorje region ) .