Rovnopositor Simutnik, 2022

Simutnik, Serguei A., Perkovsky, Evgeny E., Khomych, Mykola R. & Vasilenko, Dmitry V., 2022, Two new genera of Encyrtidae (Hymenoptera, Chalcidoidea) with reduced ovipositor sheaths, Journal of Hymenoptera Research 89, pp. 47-60 : 47

Genus Rovnopositor Simutnik gen. nov.

Type species.

Rovnopositor voblenkoi Simutnik, sp. nov.

Species composition.

Type species only.

Etymology.

The name of the genus is a combination of the words “Rovno” and “ovipositor”. The new genus is distinguished by an unusual ovipositor structure. Gender masculine.

Diagnosis.

Habitus not ‘encyrtiform’, body not compact, not flattened; ocelli in almost right angled triangle (Fig. 5B ), posterior ocelli elliptical in dorsal view; frontovertex about as long as broad; flagellum long, first funicular segment 1.5 × as long as broad, funicle without transverse segments; clava slightly longer than F4-F6 combined, 2.5 × as long as broad; mesoscutum and scutellum convex, notauli absent; scutellum as broad as long, and as long as mesoscutum; marginal vein relatively short, twice as long as broad, and one-third as long as postmarginal vein; setae along basal margin of linea calva short; filum spinosum absent; parastigma almost not widened; strigil present, well-developed; cerci slightly advanced toward gastral base, with long cercal setae (Fig. 5D : cers); apex of hypopygium reaching way past apex of gaster (in ovipositing position, Fig. 5A,D : hyp), lateral margins of hypopygium bare, without row of setae; protruding part of ovipositor stylet stout, upwardly bent (in ovipositing position); ovipositor sheaths strongly reduced, not visible in lateral view.

Remarks.

The new genus differs from Archaeocercoides in the right angled ocellar angle; the frontovertex is about as long as broad; its long flagellum, the first funicular segment being longer than broad, the funicle without transverse segments; the clava slightly longer than F4-F6 combined, 2.5 × as long as broad; the relatively short marginal vein, twice as long as broad and one-third length of postmarginal vein; the convex mesoscutum and scutellum; the well-developed strigil; the cerci are noticeably advanced toward the gastral base; the lateral margins of hypopygium are bare; and in its stouter and longer protruding part of the ovipositor stylet (in ovipositing position).

Figures

Figure 5. R. voblenkoi, gen. et sp. nov., holotype female A body, lateral (hyp - hypopygium, st - strigil) B head, anterior part of the mesosoma, dorsolateral C forewing (f - marginal fringe, unc - uncus) D apex of gaster, lateral (cers - cercal setae). Scale bars: 0.2 mm (A-C); 0.1 mm (D).