Mnioes poncei, 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 : 191-192

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Mnioes poncei

sp. nov.

Mnioes poncei   sp. nov.

( Figs 4 View FIGURE 4 , 9B View FIGURE 9 )

Diagnosis. Mnioes poncei   sp. nov. can be distinguished from its female congeners by the following combination of traits: frontal and facial orbit white, tegula black, mesoscutum with longitudinal notaular stripes extending from anterior margin to center and a pot at center white, and metasoma red. This species has the shortest ovipositor sheath length in the genus, 1.6× as long as metathoracic tibia.

Material examined. Holotype: ♀, “ PERU, MD, Albergue Refugio Amazonas 12º52’30”/69º24’35” 231 m 26.iv.2017 D. Couceiro // WIRED AMAZON PROYECT PAN TRAP ” ( MUSM). Right leg removed for molecular work [DNA-Ichn00391].  

Description of female holotype. Fore wing length 6.0 mm.

Head: Face granulate-punctate and weakly polished, 0.7× as long as wide; clypeus granulate, 2.0× as wide as long; malar space 1.0× as long as basal mandibular width; lateral ocellus separated from compound eye by about 1.0× maximum ocellar diameter; distance between ocelli 1.3× maximum ocellar diameter; scape ( Fig. 4B View FIGURE 4 ) with truncated section U-shaped, with 44 flagellomeres, ratio of length from second to fourth flagellomeres: 3.9:3.6:3.1, subapical flagellomere 1.0× as long as centrally broad.

Mesosoma   : Granulate-punctate and weakly polished; notaulus undistinguishable; subalar prominence low and weakly rounded. Propodeum granulate-punctate; evenly declivous from anterior margin; pleural carina present; with a weak vestige of posterior transverse carina present, except laterally. Fore wing with vein 1m-cu without a ramellus; vein 2m-cu straight, with a single bulla, without abscissa and without a stub of spurious vein; 2rs-m 1.5× as long as abscissa of M between 2rs-m and 2m-cu. Hind wing with length of abscissa of Cu1 between Cu1 and 1A 0.7× as long as length of vein Cu1 between M and Cu1.

Metasoma: Metasomal tergites granulate, matte; tergite I 1.8× as long as posteriorly wide; tergite II 0.9× as long as posteriorly wide; ovipositor sheath 1.6× as long as metathoracic tibia ( Fig. 4A View FIGURE 4 ).

Colour: Head ( Fig. 4B View FIGURE 4 ) predominantly black; clypeus off-white, mandibles, palpi, and orbit (between upper half of face and after lateral ocellus) white; antenna black with flagellomeres 9–15 (entirely) and dorsal half of flagellomere 16 white. Mesosoma   ( Fig. 4B View FIGURE 4 ) predominantly black; anterior margin of pronotum (dorsally), subalar prominence, humeral plate, mesoscutum with longitudinal notaular stripes extending from anterior margin to center and a spot at center, mesoscutellum, postscutellum, a spot postero-ventrally of mesopleuron, upper division of metapleuron, and a band covering dorso-posterior section of metapleuron and dorso-posterior section of propodeum white. Prothoracic leg orange, coxa and trochanter white, tarsomeres 3–5 light brown. Mesothoracic leg orange, coxa basal-laterally white, tarsomeres 3–5 light brown. Metathoracic leg reddish-orange, tibia brown, tarsomeres 1–4 white, and tarsomere 5 black. Wings hyaline. Metasoma reddish; ovipositor sheath black, distal end white ( Fig. 4A View FIGURE 4 ).

Male. Unknown.

Comments. Despite the effort done in the Refugio Amazonas Lodge representing almost two years of continuous sampling, and the variety of traps employed (pan trap, Malaise traps, and light traps), only one individual was collected. It overlaps its distribution with the widely distributed species M. attenboroughi   sp. nov., of which several individuals were collected.

Distribution. Madre de Dios ( Fig. 9B View FIGURE 9 ).

Etymology. The specific epithet poncei   honours Carlos Ponce del Prado. Members of the project Discovery want to commemorate him for his educational labour and laudable work as promoter of protected natural areas in Peru.


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