One sample-three new species: an example of species richness of the genus Symplecis Förster, 1869 (Hymenoptera, Ichneumonidae: Orthocentrinae) in Burundi Author Varga, Oleksandr text Zootaxa 2023 2023-06-29 5311 2 289 296 http://dx.doi.org/10.11646/zootaxa.5311.2.8 journal article 10.11646/zootaxa.5311.2.8 1175-5326 8094472 47894874-9E7F-4F66-8B55-C239B4FF2F00 Symplecis aperta Varga , sp. n. ( Fig. 2 ) Material examined. Holotype : ♀ , BURUNDI : Kibira National Park , 2.93315° S , 29.50583° E , 2177 m , mixed forest, Malaise trap , bamboo near small meadow, 29.i–12.ii.2010 , leg. R . Copeland (deposited in: MRAC ). Diagnosis. Symplecis aperta sp. n. is characterized by the combination of the following characters: clypeus dark brown, almost touching eye ( Fig. 2B ); mesosoma black; mesoscutum pubescent ( Fig. 2C ); propodeum with wide area superomedia delimited by carinae, costulae present ( Fig. 2D ); fore wing with vein 3rs-m absent; hind wing with nervellus intercepted close to the middle ( Fig. 2E ); hind coxa from outer side granulate; first metasomal tergite 2.9× as long as apical width; second tergite longitudinally striae ( Fig. 2D ); ovipositor as long as fifth tarsomere of hind tarsus. FIGURE 2. Symplecis aperta Varga , sp. n. , holotype female. A—lateral view of habitus; B—frontal view of face; C—dorsal view of mesoscutum; D—dorsal view of propodeum and metasomal tergites 1–2; E—wings. Symplecis aperta sp. n. differs from all known Afrotropical species in having fore wing with with vein 3rs-m absent in combination with developed area superomedia and costulae. Description. Female. Holotype ( Fig. 2 ). Body length approximately 4.5 mm . Fore wing 3.9 mm . Head ( Fig. 2B ) smooth and sparsely pubescent. Antenna with 20 flagellomeres, first flagellomere 6.5× as long as wide. Face about 0.8× as long as wide, sparsely punctate; eyes strongly convergent to clypeus, glabrous. Malar space short, 0.3× the basal width of mandible; subocular sulcus distinct. Clypeus 0.7× as long as wide, granulate. Mandible bidentate, not twisted. Temples short and strongly narrowed behind eyes (dorsal view). Frons and vertex smooth; length of the ocellar-ocular distance 1.1× maximum diameter of lateral ocellus; occipital carina complete. Mesosoma ( Figs 2C–D ) smooth and densely pubescent. Propleuron sparsely punctate. Pronotum smooth; epomia present, reaching mesoscutum. Mesoscutum sparsely, but uniformly pubescent; notauli present, but weak. Scutellum smooth, with carinae present only on basal 0.1; scuto-scutellar groove wide. Mesopleuron smooth; epicnemial carina present; sternaulus deep and long. Metapleuron punctate; pleural and submetapleural carinae present. Propodeum smooth, carinated; area superomedia wide, costulae present; area basalis indistinct; apophyses absent. Legs relatively slender; hind femur 6.7× as long as wide, hind coxa smooth from inner side and granulate from outer side; third tarsomere of hind tarsus 1.3× as long as fifth tarsomere; tarsal claws simple. Wings ( Fig. 2E ). Fore wing with vein 2 rs-m short, about 0.4× the distance between 2 rs-m and 2 m-cu ; vein 3rsm absent; vein 1cu-a opposite to M & Rs ; hind wing with nervellus weakly intercepted in the middle, vertical; distal abscissa of Cu absent. Metasoma ( Fig. 2D ) longitudinally striae and sparsely pubescent. First tergite 2.9× as long as apical width, granulate basally, longitudinally striae apically; carinae indistinct. Second tergite 1.2× as long as apical width, longitudinally striae. Third tergite weakly granulate on basal 0.5; the remaining tergites smooth. Ovipositor short, about 0.1× as long as hind tibia and about as long as fifth tarsomere of hind tarsus. Colour . Body generally black. Head black except scape and pedicel, and mandible (except apices) yellowish; face centrally and clypeus dark brown. Mesosoma black except upper hind corner of pronotum and tegula yellow; subtegular ridge orange. Legs generally yellowish-brown; fore and mid legs yellow; hind legs brownish except coxae apically and trochanters partly yellow. Metasoma with tergites 1–2 black; second tergite apically, third tergite basally and apically yellow; the remaining tergites brown. Pterostigma and veins brown. Male. Unknown. Etymology. The new species is named after the opened areolet of fore wing. Distribution. Currently known only from Burundi .