Cornugon bicornis, Hansson, Christer, 2011

Hansson, Christer, 2011, Cornugon (Hymenoptera: Eulophidae: Entedoninae) a new genus from tropical America including ten new species, Zootaxa 2873, pp. 1-26 : 9-10

publication ID	https://doi.org/ 10.5281/zenodo.277538
DOI	https://doi.org/10.5281/zenodo.5690172
persistent identifier	https://treatment.plazi.org/id/03F1FB3F-FFF4-FFF1-FF60-1B33E8A9FF03
treatment provided by	Plazi
scientific name	Cornugon bicornis
status	sp. nov.

Treatment

Cornugon bicornis sp. nov.

( Figs 13–17 View FIGURES 13 – 17 , 52 View FIGURES 52 – 57 , 76–77 View FIGURES 74 – 88 )

Diagnosis. Upper part of frons with two "horns" and with frontal suture continuing up into apex of horns ( Figs 13– 15 View FIGURES 13 – 17 ); scape, femora and tibiae dark brown with metallic tinges; mesoscutum smooth and shiny ( Fig. 16 View FIGURES 13 – 17 ); scutellum with a deep and distinct median groove extending from anterior margin along 3/4 length ( Fig. 16 View FIGURES 13 – 17 ); propodeum without median carina ( Fig. 17 View FIGURES 13 – 17 ); hind coxa conspicuously hairy on posterior surface; petiole about 1.5X as long as wide, reticulate with small meshes and hence dull ( Fig. 17 View FIGURES 13 – 17 ); first gastral tergite shiny and large, covering 4/5 of gaster.

Similar to C. diabolos , but differing in having scape, femora and tibiae dark brown and with a narrow fovea medially between the mesoscutum and scutellum ( Fig. 16 View FIGURES 13 – 17 ).

Description. FEMALE. Length 1.0 mm. Antenna dark. Frons dark purple. Vertex golden-green. Mesoscutum golden-green with blue tinges anteriorly. Scutellum golden-purple, metallic greenish-blue laterally. Propodeum golden-green. Coxae, femora and tibiae dark and metallic with knees pale; tarsi pale brown. Wings hyaline. Gaster and petiole dark metallic purple.

Antenna as in Fig. 76 View FIGURES 74 – 88 . Frons and vertex smooth and shiny ( Figs 13–15 View FIGURES 13 – 17 ), frons concave; upper part of frons with two "horns"; tentorial pits distinct ( Fig. 13 View FIGURES 13 – 17 ); frontal suture incomplete, ending just below frontal horns; frontal speculum small.

Mesonotum with a narrow slit medially between mesoscutum and scutellum ( Fig. 16 View FIGURES 13 – 17 ). Mesoscutum smooth and shiny ( Fig. 16 View FIGURES 13 – 17 ). Scutellum with anterior 4/5 smooth and shiny, posterior 1/5 with strong reticulation ( Fig. 16 View FIGURES 13 – 17 ); with a distinct median groove extending from anterior margin along 3/4 length. Dorsellum hidden under scutellum, not visible in dorsal view ( Fig. 16 View FIGURES 13 – 17 ). Propodeum with irregular sculpture medially, otherwise smooth and shiny between plicae ( Fig. 17 View FIGURES 13 – 17 ).

Petiole about 1.5X as long as wide, reticulate with small meshes and hence dull ( Fig. 17 View FIGURES 13 – 17 ). Gaster ovate with first tergite shiny and large, covering 4/5 length.

MALE. Length 1.2 mm. Colour as in female except frons black with metallic shine, vertex golden-red, and mesoscutum golden-red. Antenna as in Fig. 77 View FIGURES 74 – 88 . Structure as for female except petiole 1.8X as long as wide and first gastral tergite covering 2/3 length of gaster.

Type material. Holotype female ( BMNH) labelled " Costa Rica, Guanacaste, Guanacaste National Park, near headquarter, 5.iii.1990, J.S. Noyes". Paratypes. 1Ƥ 13 on cards. COSTA RICA. Guanacaste: Bagaces, Parque Nacional Palo Verde, Estación Pale Verde, 10 m, 10.x–10.xi.2000, LN 259050/388400, I. Jiménez, #60220 (1Ƥ, INBio); Bagaces, Parque Nacional Palo Verde, Sector Palo Verde, Cerro Guyacán, 212 m, 8.xii.1999 – 10.i.2000, LN 259350/389600, I. Jiménez, #54958 (13, BMNH).

Etymology. Named after the two hornlike protrusions on upper part of frons, from the Latin bi = two, and cornu = horn.

Distribution. Costa Rica.