Mnioes soqta, Alvarado, 2020

Alvarado, Mabel, 2020, Ten new species of parasitoid wasps Mnioes Townes, 1946 (Hymenoptera: Ichneumonidae: Banchinae) described from Peru, Zootaxa 4743 (2), pp. 181-199 : 194-196

Mnioes soqta sp. nov.

( Figures 7 , 9C )

Diagnosis. Mnioes soqta sp. nov. can be distinguished from its female congeners by the following combination of traits: face, mesoscutum, tegula, and coxae predominantly black; ovipositor sheath ~2.5× as long as metatibia; wings softly infuscate, with apical and preapical blackish bands. While, males can be distinguished by the mesoscutum entirely black and wings softly infuscate, with apical and preapical blackish bands.

Material examined. Holotype: ♀, “ PERÚ: CU. San Pedro 13º02’58”S / 71º32’13”W 1500m 20.ix.2007 Malaise C. Castillo ” . Paratypes. CUZCO: 3♀♀, 1♂, “ PERÚ: CU, Cosñipata valley, San Pedro, 13º03’23”S / 71º32’55”W, 22.ix.2007, 1520m, MT, C . Castillo; ♀, 2♂♂, idem but 13º03’22.5”S / 71º32’55.2”W, XII.2007 . PASCO: 1♀, Villa Rica, Bosque San Matias San Carlos Protected Area , 10º38’51”S / 75º12’22”W, 1556m, 03-05.v.2012, LT, L. Figueroa & V. Borda ( MUSM).

Description of female holotype. Fore wing length 7.2 mm.

Head: Face granulate-punctate and weakly polished, 0.7× as long as wide; clypeus granulate with scarce punctures, 2.1× as wide as long; malar space 0.8× as long as basal mandibular width; lateral ocellus separated from compound eye by about 1.1× maximum ocellar diameter; distance between ocelli 0.8× maximum ocellar diameter; scape with truncated section V-shaped; with 43 flagellomeres, ratio of length from second to fourth flagellomeres: 3.3:2.8:2.8, subapical flagellomere 0.9× as long as centrally broad.

Mesosoma : Granulate-punctate and weakly polished; notaulus vestigial, weakly impressed anteriorly; subalar prominence low and weakly rounded. Propodeum granulate-punctate; declivous from anterior margin, centrally between anterior margin and posterior transverse carinae with a median longitudinal concavity, weakly folded in homologous position to lateral longitudinal carina only next to spiracle; pleural carina present; posterior transverse carina present, except laterally. Fore wing with vein 1m-cu without a ramellus; vein 2m-cu weakly sinuate, with a single bulla, without abscissa and without a stub of spurious vein; 2rs-m 2.3× as long as abscissa of M between 2rs-m and 2m-cu. Hind wing with length of abscissa of Cu1 between Cu1 and 1A 0.2× as long as length of vein Cu1 between M and Cu1.

Metasoma: Metasomal tergites granulate, matte; tergite I 2.1× as long as posteriorly wide; tergite II 1.2× as long as posteriorly wide; ovipositor sheath ~2.5× as long as metathoracic tibia.

Colour: Head ( Fig. 7A ) black, ventral half of clypeus and orbit (between antennal socket and median ocellus) off- white; antenna black 8–13 (entirely) and ventral half of flagellomeres 14–15 white. Mesosoma ( Fig. 7A ) black. Prothoracic leg black, coxa distally off-white. Mesothoracic leg black, coxa distally, distal half of tarsomere 2 and basal half of tarsomere 3 off-white. Metathoracic leg predominantly black; distal end of coxa, distal half of tarsomere 2, and basal half of tarsomere 3 off-white. Wings ( Fig. 7A ) softly infuscate, with apical and preapical bands blackish. Metasomal tergites and ovipositor sheath black.

Variation of female paratypes. Fore wing length 6.0– 7.5 mm. They differ from the holotype in the following features: clypeus 1.9–2.2× as wide as long; malar space 0.7–0.8× as long as basal mandibular width; lateral ocellus separated from compound eye by about 0.9–1.3× maximum ocellar diameter; antenna with 43–45 flagellomeres, ratio of length from second to fourth flagellomeres: 3.2–3.5:2.8–3.1:2.8–3.1, subapical flagellomere 0.7–0.9× as long as centrally broad; fore wing with vein 2m-cu rarely with a two bullae (if so abscissa without a stub on spurious vein), 2rs-m 1.8–2.0× as long as abscissa of M between 2rs-m and 2m-cu; hind wing with length of abscissa of Cu1 between Cu1 and 1A 0.2–0.3× as long as length of vein Cu1 between M and Cu1; tergite I 2.1–2.5× as long as posteriorly wide; ovipositor sheath 2.4–2.5× as long as metatibia; and, antenna black with flagellomeres 8–12, generally, entirely white and flagellomeres 13–14 (rarely 8 and/or 15) ventrally black.

Male (Fore wing length 6.5–7.3 mm). The male individuals differ from the females in the following features: face 0.7–0.8× as long as wide; malar space 0.6–0.7× as long as basal mandibular width; distance between ocelli 0.6–0.7× maximum ocellar diameter; antenna with 45–47 flagellomeres, ratio of length from second to fourth flagellomeres: 4.0:3.8:3.7, subapical flagellomere 1.4–1.5× as long as centrally broad; fore wing with vein 1m-cu without a ramellus, vein 2m-cu with a single bulla and without abscissa and stub of spurious vein; hind wing with length of abscissa of Cu1 between Cu1 and 1A 0.1–0.4× as long as length of vein Cu1 between M and Cu1; tergite I 2.4–2.6× as long as posteriorly wide; tergite II 1.4–1.6× as long as posteriorly wide.

Colour (male): Head predominantly black; face (with a black band centrally), clypeus, malar space, mandibles, orbits (between antennal socket and median ocellus) white; antenna predominantly black, scape and pedicel lateroexternally white. Mesosoma ( Fig. 7A ) predominantly black; anterior margin of pronotum, subalar prominence, tegula, and humeral plate white. Prothoracic leg light brown; coxa basally black, gradually changing to white towards distal end. Mesothoracic leg light brown; coxa basally black gradually changing to white towards distal end; trochanter, trochantellus, and femur latero-externally off-white; tibia ventrally off-white. Metathoracic leg predominantly black, distal end of coxa and tibia ventrally off-white, tarsomeres 2–4 white. Wings ( Fig. 7A ) hyaline, with apical and preapical band blackish. Metasomal tergites predominantly black, posterior margin of tergite II, anterior margin of tergite III, and mid-posterior margin of tergite VII white.

Distribution. Cloud forests of Cusco and Pasco ( Fig. 9C ), at about 1500 m.

Etymology. The specific epithet soqta means “six” in Quechua. It is treated as a masculine noun in apposi- tion.

Figures

FIGURE 7. Details of Mnioes soqta sp. nov. (paratype) A. Habitus in lateral view of female B. Habitus in lateral view of male (scale bars = 1 mm).

FIGURE 9. Geographic distribution of the Mnioes species in Peru.