Mnioes iskay, 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 : 188-189

Mnioes iskay sp. nov.

( Figs 3 , 9A )

Diagnosis. Mnioes iskay sp. nov. is the only species within the genus that has the frons evenly black, metasomal tergites shiny, and female with antenna evenly black.

Material examined: Holotype: ♀, “ PERÚ: CA. Sorochuco , El Galeno 78º20’14”W / 6º58’28”S 13-15/iv/2009 3975m L. Huerto ” ( MUSM).

Description of female holotype. Fore wing length 7.1 mm.

Head: Face granulate-punctate and weakly polished, 0.6× as long as wide; clypeus dorsal half granulate-punctate, ventral half granulate, 1.5× as wide as long; malar space 1.1× as long as basal mandibular width; lateral ocellus separated from compound eye by about 1.5× maximum ocellar diameter; distance between ocelli 1.5× maximum ocellar diameter; scape with truncated section V-shaped; with 52 flagellomeres, ratio of length from second to fourth flagellomeres: 2.9:2.8:2.6, subapical flagellomere 1.2× as long as centrally broad.

Mesosoma : Granulate-punctate and weakly polished; notaulus vestigial, weakly impressed anteriorly; subalar prominence low and elongate. Propodeum ( Fig. 3B ) granulate-punctate; evenly declivous from anterior margin; pleural carina present; posterior transverse carina present, complete and strong, up-curved. Fore wing with vein 1mcu with a ramellus; vein 2m-cu weakly sinuate, with a two bullae, with abscissa and with a stub on spurious vein; 2rs-m 2.8× as long as abscissa of M between 2rs-m and 2m-cu. Hind wing with length of abscissa of Cu1 between Cu1 and 1A 0.3× as long as length of vein Cu1 between M and Cu1.

Metasoma: Metasomal tergites softly granulate, shiny; tergite I 1.9× as long as posteriorly wide; tergite II 1.0× as long as posteriorly wide; ovipositor sheath 4.0× as long as metathoracic tibia.

Colour: Head black, ventral half of clypeus and mandibles at middle white. Mesosoma predominantly black; anterior margin of pronotum, tegula, and humeral plate white. Legs with coxae (but ventrodistally off-white), trochanter (but ventrodistally off-white), and trochantellus black but distally off-white; femurs, tibiae and tarsomeres orange-brown. Wings hyaline. Metasomal tergites predominantly black, latero-anteriorly of tergite I, lateral margin of tergites II–VII, posterior margin of tergites V–VII, and hypopygium off-white; posterior margins of tergites II–IV reddish. Ovipositor sheath black.

Male. Unknown.

Comments. Within the genus, it is the species that occurs at the highest elevation, 3975m.

Distribution. Cajamarca ( Fig. 9A ).

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

Figures

FIGURE 3. Details of Mnioes iskay sp. nov. (holotype). A. Lateral habitus of female (scale bar = 1 mm) B. Dorsal view of propodeum C. Dorsal view of metasomal tergites I–II.

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