Seticornuta curupira, Alvarado, 2022

Alvarado, Mabel, 2022, Darwin wasps of the genus Seticornuta Morley, 1913 (Ichneumonidae: Metopiinae) in the Neotropical region, with a key to species, European Journal of Taxonomy 839, pp. 149-175 : 160-162

Seticornuta curupira sp. nov.

urn:lsid:zoobank.org:act:52C58F37-4DD0-4171-8484-F611DB5A7601

Figs 4 , 10I , 11A

Diagnosis

This species can be recognized by this combination of features: pronotum and mesoscutum tawny, and metapleuron rectangular.

Etymology

The specific ‘curupira’ is in reference to the mythological creature that lives in Brazilian forests. It is treated as a noun in apposition.

Material examined

Holotype

BRAZIL • ♀; “ Nova Teutonia Santa Caterina Nov. 1970 Brazil Fritz Plaumann ”; USUC.

Paratypes

BRAZIL • 1 ♂; “ BRAZIL: Nova Teutonia 27°11′B 52°23′L. 15.iii.1937. Flitz Plaumann. B.M. 1937- 424.”; NHMUK • 1 ♂; “ Nova Teutonia 27°11′S 52°23′W BRAZIL, 300–500m 9-viii-1948 Fritz Plaumann [ CNC493240 ]”; CNC • 1 ♀; “ Nova Teutonia 27°11′S 52°23′W Brazil, 300–500m Jan.1968 Fritz Plaumann [ CNC493239 ]”; CNC • 1 ♀; “ Nova Teutonia Santa Caterina Jan. 1971 Brazil Fritz Plaumann ”; USUC • 1 ♀; “ Nova Teutonia Brazil XI-1-1942 F. Plaumann ”; USUC.

Description

Female

MEASUREMENTS. Body length 8.3 mm. Fore wing length 6.5 mm.

HEAD. Face+clypeus 1.0 × as wide as long; labrum exposed when mandibles closed; malar space 0.8 × as long as basal mandibular width; lateral ocellus separated from compound eye by 0.8 × ocellar diameter; distance between ocelli 1.5 × maximum ocellar diameter; head posteriorly behind ocellar triangle concave; gena, on lateral view 0.7 × as long as compound eyes; occipital carina complete; antenna with 30 flagellomeres, ratio of length from second to fourth flagellomeres: 1.1:1.0:1.0, subapical flagellomere elongate, 1.4 × as long as centrally wide.

MESOSOMA. Epicnemial carina interrupted subapically; metapleuron rectangular, dorsal margin weakly declivous posteriorly, abruptly down-turned, postero-dorsally curved forming an obtuse angle, glabrous; submetapleural carina smooth, anteriorly expanded into conspicuous triangular lobe. Propodeum with lateromedian longitudinal carina strong, parallel; lateral longitudinal carina strong, absent anterior to spiracle; posterior transverse carina present. Fore wing with Cu1a between Cu1b and 2m-cu 1.5 × as long as Cu1 between Rs&M and 1m-cu. Hind wing with distal abscissa of Cu1 sclerotized throughout, abscissa of M faint.

METASOMA. Metasoma with tergite I 0.9 × as long as posteriorly wide, lateromedian carinae extending 0.5 × length of tergite; tergite II 0.8 × as long as posteriorly wide; laterotergite II 0.5 × as long as wide, wedge-shaped, mesal edge concave; laterotergite III 0.8 × as long as wide, semicircular.

COLOR. Head extensively light yellow, frons, interocellar area, vertex, and upper posterior half of gena black, orbits light yellow, palpi brown, antenna black; pronotum and mesoscutum tawny; scutellum brown, grading posteriorly to yellow; propodeum black; mesopleuron predominantly light yellow, surrounding area of subalar prominence, spot at mid epicnemial carina brown; mesosternum brownish; metapleuron light yellow, submetapleural carina brownish; prosternum light yellow; mesosternum light brown; fore leg light yellow, coxa dorsally, femur and tibia laterally light brown, tarsomeres brown; mid leg light yellow, coxa ventrally, femur and tibia latero-ventrally light brown, tarsomeres brown; hind leg light yellow, coxa ventrally, trochanter ventrally, femur latero-externally centrally, metatarsomere 1 with distal third grading to brown, tarsomeres 2–5 brown; tibia ventrally light brown; wings faintly infuscate; metasomal tergites black.

VARIATION. The paratypes differ from the holotype in the following: fore wing length 6.5–7.0 mm; lateral ocellus separated from compound eye by 0.7–0.8 × ocellar diameter; distance between ocelli 1.3–1.5 × its own maximum diameter; ratio of length from second to fourth flagellomeres: 1.0–1.1:1.0:1.0, subapical flagellomere elongate, 1.3–1.4 × as long as centrally wide; fore wing with Cu1a between Cu1b and 2mcu 1.4–1.5 × as long as Cu1 between Rs&M and 1m-cu; metasomal tergite I 0.9 × as long as posteriorly wide, lateromedian carinae extending 0.5–0.7 × length of tergite; laterotergite II 0.5–0.6 × as long as wide; laterotergite III 0.7 × as long as wide.

Male

The paratypes differ from the holotype in the following: fore wing length 6.2–6.3 mm; malar space 0.6 × as long as basal mandibular width; lateral ocellus separated from compound eye by 0.6 × ocellar diameter; distance between ocelli 1.2–1.5 × its own maximum diameter; gena, on lateral view 0.8 × as long as compound eyes; antenna with 31 flagellomeres, ratio of length from second to fourth flagellomeres: 1.4–1.5:1.2–1.5:1.2–1.4, subapical flagellomere elongate, 1.3–1.4 × as long as centrally wide; fore wing with Cu1a between Cu1b and 2m-cu 1.3–1.5 × as long as Cu1 between Rs&M and 1m-cu; laterotergite II 0.6 × as long as wide. There is variation in the coloration compared to females: procoxa and meso- and metatibia entirely light yellow.

Remark

This species was collected in the Brazilian state of Santa Catarina ( Fig. 11A ), at the same locality as S. flava sp. nov.

Figures

Fig. 4. Details of Seticornuta curupira sp. nov. A. ♀, holotype (USUC), habitus, lateral view. B. ♀, paratype (USUC), facial view. C. ♀, paratype (USUC), mesosoma and first metasomal tergite, dorsal view. Scale bar = 1 mm.

Fig. 10. Seticornuta spp. A–B. S. cortesi Porter, 1998, head. A. Facial view, head ventrally. B. Facial view, head dorsally. C. S. cuckoo sp. nov., ♀, holotype (USUC), metapleuron. D. S. nigroflava sp. nov., ♀, holotype (SEMC), metapleuron. E. S. carinata sp. nov., ♀, holotype (USUC), metapleuron. F. S. quilmes sp. nov., ♀, holotype (USNM). G. S. rufa sp. nov., ♀, holotype (USUC), metapleuron. H. S. muqui sp. nov., ♀, holotype (MUSM). I. S. curupira sp. nov., ♀, holotype (USUC), metapleuron. J. S. anchanchu sp. nov., metapleuron. K. S. flava sp. nov., ♀, holotype (NHMUK), metapleuron.

Fig. 11. Geographic distribution of species of Seticornuta Morley, 1913 in the Neotropical region.