Noumeasega kaoriensis 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 : 30-32

Noumeasega kaoriensis Kimsey sp. n. Figures 12 , 20 , 31, 32

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: 6 males: same data as holotype; 1 male: 22/xi-22/xii/2004, Burwell & Wright, malaise trap, #11846; 1 male: 22/xii/2004-12/i/2005, Burwell & Wright, malaise trap, #12020; 1 female: G. Monteith, malaise trap, #12020; 2 males: 21/xii/2004-12/i/2005, Burwell & Wright, malaise trap, #12030; 1 female: 21/xi/2001-29/i/2002, G. Monteith, malaise trap, #8920; 1 female: 22/xi/2004-12/i/2005, G. Monteith, FIT, #11847; 1 male: Chute Madeleine, 230m, 22°14'E, 166°52'S, 18/ix-12/xi/2000, Skevington & Burwell, #9970; 1 male, 1 female: Foret Nord, 22°19'S, 166°55'E, 480m, 1-22/xii/2004, Malaise trap, Burwell & Wright, #11882; 2 females: 480m, 22/xii/2004-9/i/2005, Malaise trap, Burwell & Wright, #12074 (BME, QM).

Diagnosis.

Male kaoriensis share the relatively bright coloration, long flagellomere I and banded wings of decorata. However, Noumeasega kaoriensis can be distinguished from decorata by the smaller body size, 3-4 mm long versus 5-6 mm, the black dorsum with metallic blue highlights, clypeus red versus blue, and flagellomere IX less than 5.5 × as long as broad. In kaoriensis females the forewing is not banded and the propodeal angle is short and acute or tooth-like, not spine-like. Closest to neocaledonica, female kaoriensis can be distinguished from females of that species by flagellomere I 3 × as long as broad, longer malar space and brown legs (yellow in neocaledonica).

Female description.

Body ( Fig. 15 ): length 3 mm. Head: face ( Fig. 23 ); scapal basin cross-ridging half distance between ocular margins, 0.7 × basin height; vertex in dorsal view ( Fig. 32 ), with complete lateral postocular extension, 0.4 midocellar diameter wide, midocellus 1.4 midocellar diameters from ocular margin; hindocellus 0.5 hindocellar diameter from ocular margin; ocular setulae minute; clypeal apex truncate, truncation 1.5 midocellar diameters wide; malar space 3.7-3.8 midocellar diameters long; subantennal distance 2 midocellar diameters long; scape 3.3 × as long as broad; flagellomere I 2.6 × as long as broad; flagellomere II twice as long as broad; flagellomere IX 4 × as long as broad. Mesosoma: pronotum with medial sulcus; pronotal and scutal punctation, coarse contiguous, not obscuring notauli; scutellum with large, contiguous punctures; mesopleural punctures contiguous to 0.5 puncture diameters apart; metanotum without medial ridge or welt; metapleuron and propodeal side smooth impunctate; propodeal posterior enclosure smooth, impunctate, with medial, longitudinal ridge. Metasoma: highly polished and impunctate. Color: head, including clypeus and mesosoma black, with coppery highlights, particularly dorsally and on face; scape, pedicel dark brown, except flagellomere I basally whitish; legs brown, including coxae; wings brown-tinted; metasoma dark brown.

Male description.

Body ( Fig. 12 ): length 3.0-4.0 mm. Head: face ( Fig. 20 ); scapal basin zone of cross-ridging half facial height, half as wide as interocular distance; least interocular distance 0.8 × facial length, 0.7 × greatest interocular distance; malar space 1.7 midocellat diameters long; subantennal distance 1 midocellar diameter long; vertex in dorsal view ( Fig. 31 ), with broad, lateral postocular extension, 1.4-1.5 midocellar diameters wide, midocellus 1.4 midocellar diameters from eye margin, hindocellus 0.6 hindocellar diameter from ocular margin; scape 2.5 × as long as broad; flagellomere I 4.5 × as long as broad; flagellomere II 4 × as long as broad; flagellomere IX 4.8 × as long as broad; antenna as long as head + mesosoma. Mesosoma: pronotal and scutal punctation dense, contiguous, not obscuring notauli; scutellum with dense, nearly contiguous punctures; mesopleuron with punctures 0.5-1.0 puncture diameters apart; metanotum without medial ridge or welt; metapleuron and propodeal side polished and impunctate; propodeum posterior enclosure smooth, impunctate, with medial longitudinal ridge. Metasoma: terga with deep even punctation, 1-2 puncture diameters apart. Color: head and mesosoma black, with greenish blue highlights dorsally, clypeus red; scape, pedicel chestnut brown; flagellum black; wings evenly light brown tinted; legs including coxae yellow; metasoma black, with faint bluish tints dorsally, anterior face of tergum I chestnut brown to yellowish brown; pubescence pale; ocular setulae present but minute.

Remarks.

This is the smallest of the Noumeasega species. The sexes are associated based on the darker legs in both, blue to purplish mesosomal highlights, distribution and collecting times.

Etymology.

The name refers to the collection site, Pic du Grand Kaori of the holotype.

Figures

Figures 12 - 15. Lateral view of female 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.