Cornugon unicornis, 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 : 19-23

publication ID	https://doi.org/ 10.5281/zenodo.277538
DOI	https://doi.org/10.5281/zenodo.5690186
persistent identifier	https://treatment.plazi.org/id/03F1FB3F-FFEE-FFEE-FF60-1FD9E8A9FF03
treatment provided by	Plazi
scientific name	Cornugon unicornis
status	sp. nov.

Treatment

Cornugon unicornis sp. nov.

( Figs 48–51 View FIGURES 48 – 51 , 57 View FIGURES 52 – 57 , 85 View FIGURES 74 – 88 )

Diagnosis. Frons with upper-median part with a single pointed “horn” ( Fig. 48 View FIGURES 48 – 51 ); vertex with a complete median groove and with a groove delimiting posterior part of ocellar triangle ( Fig. 51 View FIGURES 48 – 51 ); scutellum with a deep and distinct median groove in anterior 2/3 ( Fig. 49 View FIGURES 48 – 51 ); propodeum with a median carina in anterior ½ ( Fig. 50 View FIGURES 48 – 51 ); hind coxa conspicuously hairy on posterior surface; petiole 1.4X as long as wide and reticulate with small meshes, hence dull ( Fig. 50 View FIGURES 48 – 51 ); first gastral tergite shiny and large, covering 2/3 length of gaster.

Similar to C. leios and C. petiolatum , but differing from both in having a single horn medially on the upper part of frons.

Description. FEMALE. Length 1.4–1.6 mm. Scape white, remaining antenna dark brown. Frons metallic dark purple. Vertex metallic greenish-blue. Mesoscutum metallic greenish-blue. Scutellum with smooth anterior part metallic greenish-blue, reticulate posterior part metallic dark purple. Propodeum metallic greenish-blue. Coxae dark and metallic; femora, tibiae and tarsi white. Wings hyaline. Petiole metallic dark purple. Gaster with first tergite metallic greenish-blue in anterior ¾, and posterior ¼ and remaining tergites metallic dark purple.

Antenna as in Fig. 85 View FIGURES 74 – 88 . Frons smooth and shiny ( Fig. 48 View FIGURES 48 – 51 ); upper-median part with a pointed “horn”; lower part of frons close to mouth opening drawn out, and with mandibles pointing downwards; frontal suture incomplete, terminating at a distance equal to diameter of torulus from each eye margin; antennal scrobes uniting on frontal suture; tentorial pits missing ( Fig. 48 View FIGURES 48 – 51 ). Vertex smooth and shiny ( Fig. 51 View FIGURES 48 – 51 ), with a complete median groove between occipital margin and anterior ocellus.

Mesonotum with a more or less quadratic fovea medially between mesoscutum and scutellum ( Fig. 49 View FIGURES 48 – 51 ). Mesoscutum smooth and shiny except for strong pit-like reticulation on very anterior part close to pronotum ( Fig. 49 View FIGURES 48 – 51 ). Scutellum with anterior 2/3 smooth and shiny with distinct median groove, posterior 1/3 with raised, strong reticulation ( Fig. 49 View FIGURES 48 – 51 ); anteromedian part protruding into posteromedian mesoscutum and with a quadrangular pit in front of protrusion. Dorsellum hidden under scutellum, not visible in dorsal view ( Fig. 49 View FIGURES 48 – 51 ). Propodeum smooth and shiny, with a median carina in anterior ½ and with complete plicae ( Fig. 50 View FIGURES 48 – 51 ).

Petiole about 1.4X as long as wide and reticulate with small meshes, hence dull ( Fig. 50 View FIGURES 48 – 51 ). Gaster ovate with first gastral tergite shiny and large, covering 2/3 length.

MALE. Unknown.

Type material. Holotype female ( INBio) labelled " Costa Rica, Heredia, Santo Domingo, INBio-Parque, iii.2002, J.S. Noyes & J.A. Azofeifa". Paratypes. 2Ƥ on cards. COSTA RICA. Heredia: with same label data as holotype ( BMNH, MIUCR).

Etymology. Named referring to the single hornlike protrusion on median frons, from the Latin unus = one, and cornu = horn.

Distribution. Costa Rica.