Seticornuta rufa Alvarado 2022, sp. nov.
Creators: name: Alvarado, Mabel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Seticornuta
Seticornuta rufa

description: Seticornuta rufa sp. nov.
urn:lsid:zoobank.org:act: DB887CFB-BCC2-4049-BAED-AC257A7F1A79
Figs 9, 10G, 11B
Diagnosis
This species can be recognized by this combination of features: pronotum ventrally black and dorsally tawny, mesoscutum tawny with three black vittae, and metapleuron three-sided with the dorsal margin evenly down-curved.
Etymology
The specific epithet ‘ rufa ’ means ‘red’ in Latin, in reference to the mesosoma color of this species.
Material examined
Holotype
BRAZIL • ♀; “S.J. [São José do] Barreiro, Serra da Bocaina Braz. [Brazil] 1650m XI-68 Alvarenga & Seabra ”; USUC.
Description
Female
MEASUREMENTS. Body length 8.8 mm. Fore wing length 6.2 mm.
HEAD. Face+clypeus 1.0 × as wide as long; labrum not exposed when mandibles closed; malar space 0.6 × as long as basal mandibular width; lateral ocellus separated from compound eye by 0.9 × ocellar diameter, distance between ocelli 1.5 × maximum ocellar diameter; head posteriorly behind ocellar triangle flat; gena, on lateral view 1.0 × as long as compound eyes; occipital carina absent ventrally; antenna with 34 flagellomeres, ratio of length from second to fourth flagellomeres: 1.2:1.1:1.1, subapical flagellomere 1.3 × as long as centrally wide.
MESOSOMA. Epicnemial carina complete; metapleuron with dorsal margin evenly declivous, polished with isolated setae; submetapleural carina smooth, anteriorly expanded into a conspicuous lobular lobe. Propodeum with lateromedian longitudinal carina strong, slightly closer subbasally; lateral longitudinal carina weak but discernible, absent anterior to spiracle; posterior transverse carina complete. Fore wing with Cu1a between Cu1b and 2m-cu 1.7 × as long as Cu1 between Rs&M and 1m-cu. Hind wing with distal abscissa of Cu1 weakly sclerotized.
METASOMA. Metasoma with tergite I 1.3 × as long as posteriorly wide, lateromedian carinae extending 0.3 × length of tergite; tergite II 0.8 × as long as posteriorly wide; laterotergite II 0.4 × as long as wide, subrectangular; laterotergite III 0.5 × as long as wide, subrectangular.
COLOR. Head extensively black except palpi and face+clypeous yellow and tawny orbits from posterior ocelli to gena. Mesosoma predominantly black except propodeum dorsally, mesoscutum (except three brownish black vittae) and scutellum reddish tawny (except anteriorly brownish); tegula yellowish; prolegs brownish black except trochanter distally, femur basally and distally, tibia, and, tibial spur yellowish, and tarsomeres (except, distal third of basitarsomere, and tarsomeres 2–4 yellowish brown) yellowish; mesoleg brownish black except trochanter distally, femur basally and distally, and tibia dorsally yellow; mesotibia ventrally and mesotarsomeres brownish yellow; metaleg brownish black except reddish tawny spot posteriorly in coxa, femur basally and distally, and tibia dorsally yellow; meso- and metatibial spur whitish; and, ovipositor valvae testaceous; wings slightly infuscate; metasoma brownish black with tergites grading posteriorly and laterally to reddish brown.
Male
Unknown.
Remark
This species was collected in the Brazilian state of São Paulo (Fig. 11B), at the same locality and date as S. carinata sp. nov.
description: Published as part of Alvarado, Mabel, 2022, Darwin wasps of the genus Seticornuta Morley, 1913 (Ichneumonidae: Metopiinae) in the Neotropical region, with a key to species, pp. 149-175 in European Journal of Taxonomy 839 on pages 170-173, DOI: 10.5852/ejt.2022.839.1939, http://zenodo.org/record/7195158