Noumeasega neocaledonica Kimsey, 2014

Kimsey, Lynn S., 2014, Description of a new chrysidid genus from New Caledonia (Hymenoptera, Chrysididae, Amiseginae), Journal of Hymenoptera Research 38, pp. 19-36 : 32-34

Noumeasega neocaledonica Kimsey sp. n. Figures 11 , 16, 21 , 25, 29, 30

Type material.

Holotype male: Pic du Grand Kaori, 22°17'S, 166°54'E, 250m, 21/xi/2001-29/i/2002, G. Monteith, Malaise trap, #8920 (QM). Paratypes: 4 females: 2 males: same data as holotype; 1 female: 22/xii/2004-12/i/2005, Burwell & Monteith, Malaise trap, #12020; 1 male: 22/xi/2004-12/xii/2004, Wright & Burwell, Malaise trap, #11852; 1 female: Pic d’Amoa, north slope, 20°58'S, 165°17'E, 480m, 15-16/xii/2004, G. Monteith, YPT, #11972; 1 female: Foret Nord, 22°19'S, 166°55'E, 22/xii/2004-9/i/2005, 480m, Burwell & Wright, Malaise trap, #12074 (QM, BME).

Diagnosis.

Noumeasega neocaledonica females share a number of features with female kaoriensis including the unbanded wings and short tooth-like propodeal angles. They can be distinguished from female kaoriensis by the shorter flagellomere I and shorter malar space. Males more closely resemble those of bicolorata, with the relatively short antenna and flagellomere I less than 3.5 × as long as broad. They can be distinguished from bicolorata males by the red clypeus and flagellum, larger body size and forewing without dark stain adjacent to stigma.

Female description.

Body ( Fig. 16 ): length 4-5 mm. Head: face ( Fig. 25 ) flattened; scapal basin with medial zone of coarse transverse ridges, occupying one-third of distance between eye margins, two-thirds height of basin; frons with large, contiguous punctures; vertex in dorsal view ( Fig. 30 ), without complete, lateral postocu lar extension, midocellus 1.4 midocellar diameters from eye margin, hindocellus 0.2 hindocellar diameter from eye margin; clypeus narrowly truncate apically, truncation about 1 midocellar diameter wide; malar space 2 midocellar diameters long; subantennal distance 0.7 midocellar diameter long; scape 3.4 × as long as wide; flagellomere I 2.4 × as long as broad; flagellomere II 0.8 × as long as broad; flagellomere IX twice as long as broad; least interocular distance 0.3 × facial length; least interocular distance 0.6-0.7 × greatest interocular distance. Mesosoma: pronotal and scutal punctures dense, contiguous, somewhat striatiform; notauli not obscured by punctures; scutellar punctures dense, contiguous; mesopleuron with large, nearly contiguous punctures; metanotum with medial longitudinal ridge or welt; metapleuron and propodeal side polished and impunctate; propodeal enclosure largely impunctate and polished, with medial longitudinal carina or welt. Metasoma: terga impunctate and polished. Color: head and mesosoma black, with coppery highlights dorsally and on face, becoming greener laterally and on metanotum; clypeus dark reddish brown; metasoma black, with faint bluish tints dorsally; tergum I anterior face brown; scape and flagellomere I yellow basally, dark brown apically; pedicel and flagellum dark brown to black; wings evenly brown tinted; legs yellow including coxae; pubescence pale.

Male description.

Body ( Fig. 11 ): length 4-5 mm. Head: face ( Fig. 21 ); face with medial zone of dense transverse cross-ridging, occupying half of area between eye margins, half height of basin; vertex in dorsal view ( Fig. 29 ), with narrow lateral postocular extension, 0.2-0.3 midocellar diameter wide, midocellus 1.7 midocellar diameters from eye margin, hindocellus separated from ocular margin by 0.4 hindocellar diameter or less; least interocular distance 0.4 × facial length; least interocular distance 0.8 × greatest interocular distance; clypeal apex broadly, shallowly curved apically; malar space 2.2 midocellar diameters long; subantennal distance 0.8 midocellar diameter long; scape 2.4 × as long as broad; flagellomere I 2.6 × as long as broad; flagellomere II twice as long as broad; flagellomere IX 2.2 × as long as broad; antenna as long as head + mesosoma. Mesosoma: pronotal and scutal punctation coarse, contiguous, obscuring notauli; metanotum with longitudinal, medial ridge or welt; metapleuron and propodeal side polished and impunctate; propodeal enclosure mostly polished, impunctate, with narrow longitudinal sulcus or line. Metasoma: terga and sterna with small punctures 1-2 puncture diameters apart. Color: head, meso- and metasoma black; clypeus red; metasomal tergum I anterior face brown; scape, pedicel and flagellum orange to light brown; legs and coxae pale brown to yellow; wing membrane untinted; pubescence pale.

Remarks.

The sexes are associated based on the weak metallic coloration and the lack of a postocular extension in the female and very narrow one in males, an uncommon feature in the genus.

Etymology.

The species name refers to the country of origin.

Figures

Figures 8 - 11. Lateral view of male Noumeasega.

Figures 16 - 24. Noumeasega. Front view of face. 16 - 20 Males, with flagellomeres II-IX or III-IX removed 21 - 24 Females.

Figures 25 - 32. Noumeasega, dorsal view of head a = midocellar eye distance b = hindocellar eye distance c = postocular distance m = males f = females.