Handaoia mercedensis Bordera, 2021

Bordera, Santiago & Broad, Gavin R., 2021, Six new species of Handaoia Seyrig, 1952 (Hymenoptera, Ichneumonidae, Phygadeuontinae): the first to be described from the New World, European Journal of Taxonomy 757, pp. 80-101 : 88-90

Handaoia mercedensis Bordera sp. nov.

urn:lsid:zoobank.org:act:80A6A583-DB23-43D9-AF4A-4D16A6270918

Figs 1C , 4 , 9B

Diagnosis

Handaoia mercedensis Bordera sp. nov. can be distinguished from all other New World species by the combination of the following characters: apophysis of propodeum conspicuously elevated, parallelsided with blunt tip ( Fig. 4G , arrow); fore wing with well-defined transverse dark brown band ( Fig. 4A ); juxtacoxal carina strong, irregular, joining submetapleural carina at mid length ( Fig. 4F , arrow); flagellum dark brown (except white band), with first and second flagellomeres light brown ( Fig. 4A–B ).

Etymology

The name refers to La Merced, municipality of Chanchamayo in the Department of Junin ( Peru), where the holotype was collected.

Material examined

Known only from the holotype female.

Holotype PERU • ♀; La Merced , Fundo La Génova ; Trampa Malaise 3; 3–17 Jan. 2009; AECID 013484/07 ; CEUA.

Description

Female

MEASUREMENTS. Body length (without ovipositor) 4.3 mm. Fore wing 3.4 mm long.

HEAD. Finely granulate, matt, strongly narrowed behind eyes, occiput very concave centrally in dorsal view ( Fig. 4C ); gena 0.18 × length of eye in dorsal view; posterior ocellus separated from eye by 1.3× its own maximum diameter; distance between posterior ocelli 0.9 × maximum ocellar diameter ( Fig. 4C ); occipital carina gently V-shaped medially; malar space about 1.4× basal width of mandible; face slightly swollen medially; clypeus ( Fig. 4B ) quite convex, gently granulate, with scattered coarse punctures in apical half, apex slightly rounded, about 2.0× as wide as high; mandible quite tapered to apex, ventral tooth of mandible a little shorter than upper tooth; maxillary palp reaching mid coxa; flagellum widened in middle, tapered towards apex, flagellomeres 8–20 flattened ventrally ( Fig. 4A ); flagellum with 22 segments, length-thickness ratios: 1 st segment = 5.0, 2 nd = 5.38 and 10 th = 1.0.

MESOSOMA. Finely granulate and matt ( Fig. 4C–D );mesoscutum slightly convex, notauli absent ( Fig. 4C ); scutellum moderately convex, without lateral carinae; sternaulus deep, exceeding half the length of mesopleuron ( Fig. 4D ); juxtacoxal carina strong, irregular, joining submetapleural carina at mid length ( Fig. 4F , arrow); propodeum ( Fig. 1C ) with strong and conspicuous carinae; area superomedia confluent with area basalis and separated from area petiolaris; inner side of area externa about 4.7× as long as inner side of area dentipara; inner side of area dentipara about 0.3× length of outer side; area spiracularis confluent with area lateralis; posterior transverse carina strong, forming an elevate apophysis joining lateral longitudinal carina, apophysis parallel-sided with blut tip ( Fig. 4G , arrow). Length of hind femur about 4.0× its height. Hind wing with vein cu-a 0.5 as long as abscissa of CU between M and cu-a.

METASOMA. Tergite I ( Fig. 1C ) finely granulate, slightly shiny, 1.77 × as long as its maximum width; postpetiole laterally not finely strigose; lateromedian longitudinal carina moderately strong, reaching about 0.7× length of tergite; lateral longitudinal carina complete; tergite II ( Fig. 4E ) shiny, very slightly granulate anteriorly, glabrous, smooth posteriorly, with moderately dense short setae; remaining tergites ( Fig. 4E ) smooth and shiny with inconspicuous dense setiferous punctures. Ovipositor sheath 0.53 × as long as hind tibia.

COLOUR. Head ( Fig. 4A–D ) orange brown, vertical orbits and interocellar area dark brown; palpi dark brown; mandibular teeth black; antenna with scape, pedicel and flagellomeres 1–2 light brown, remaining flagellomeres dark brown, flagellomeres 4–7 and base of 8 dorsally white ( Fig. 4A ). Mesosoma ( Fig. 4A, C–D ) entirely orange-brown. Metasoma ( Fig. 4E ) except tergite I dark brown, tergite I light brown. Fore and mid legs ( Fig. 4A ) light brown, tarsi fuscous; hind leg dark brown, trochanter and base of tibia white. Wings slightly infuscate, fore wing with well-defined transverse dark brown band ( Fig. 4A ).

Male

Unknown.

Figures

Fig. 1. Propodeum and tergite I of Handaoia spp., ♀♀. A. H. cuscoensis Bordera sp. nov., holotype (AEIC).B. H. fritzi sp. nov., holotype (NHMUK).C. H. mercedensisBordera sp. nov., holotype (CEUA). D. H. plaumanni sp. nov., holotype (NHMUK). E. H. ruizcancinoi Bordera sp. nov., holotype (CEUA). F. H. urceus sp. nov., holotype (NHMUK). Scale bars: 0.1 mm.

Fig. 4. Morphology of Handaoia mercedensis Bordera sp. nov., holotype, ♀ (CEUA). A. Habitus, lateral view. B. Head, front view. C. Head and mesoscutum, dorsal view. D. Head and mesosoma, lateral view. E. Metasoma, dorsal view. F. Metapleuron (arrow: juxtacoxal carina). G. Propodeum (arrow: propodeal apophysis). Scale bars: A = 1 mm; B–E = 0.2 mm; F–G = 0.1 mm.

Fig. 9. Distribution of New World species of Handaoia Seyrig, 1952. A. North and Central America. B. South America.