Noumeasega bicolorata 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 : 24-26

Noumeasega bicolorata Kimsey sp. n. Figures 3 , 4 , 9 , 14 , 17, 22 , 25, 26

Type material.

Holotype male: Pic du Pin, 22°14'S, 166°50'E, 280m, 23/xii/2004-12/i/2005, Malaise trap, Burwell & Wright, #12047 (QM). Paratypes: 1 male: same data as holotype; 2 males: 25/xi-23/xii/2004, Malaise trap, Burwell & Wright, #1864; 2 males: 22°15'S, 166°49'E, 280m, 23/xii/2003-12/i/2005, Malaise trap, Burwell & Wright, #12038; 2 males: 25/xi-23/xii/2004, Malaise trap, Burwell & Wright, #11858; 1 male: 25-26/xi /2004, Malaise trap, Burwell & Wright, #11779; 2 females; Pic du Grand Kaori, 22°17'S, 166°54'E, 250m, 22-23/xi/2004, Burwell & Wright, YPT, #11760; 1 female: Pic du Grand Kaori, 22°15'S, 166°49'E, 280m, 25/xi/2004-12/i/2005, Grimbacher & Monteith, RF, #1859; 2 females: Riv. Bleue Panoramic track, 160m, 22°15'S, 166°49'E, 25/xi/2004-12/i/2005, Burwell & Skevington, FIT, #9960; 1 male: Foret Nord, 22°19'S, 166°55'E, 480m, 22/xii/2004-9/i/2005, Malaise trap, Burwell & Wright, #12074; 1 male: 1-22/xii/2004, Malaise trap, Burwell & Wright, #11882 (BME, QM).

Diagnosis.

Females share the banded wings and long spine-like propodeal angles with decorata. They can be separated by having a black body, with coppery or green highlights, not bright blue as in decorata and the flagellum is bicolored, not yellow as in decorata. Males have yellow legs and flagellomere I less than 4 × as long as broad, which are shared with neocaledonica. Males also have a dark spot on the forewing below the stigma, a feature shared with decorata. They can be distinguished from neocaledonica by the dark brown to black flagellum and clypeus (red in neocaledonica).

Female description.

Body ( Fig. 14 ): length 2.5-3.0 mm. Head: face ( Fig. 22 ); scapal basin zone of cross-ridging occupying one-third of distance between ocular margins, three-fourths basin height; frons with punctures large, contiguous; vertex ( Fig. 26 ): lateral postocular extension not extending behind eye, midocellus 2 midocellar diameters from ocular margin; hindocellus 0.4 hindocellar diameter from ocular margin; malar space 2.4-2.5 midocellar diameters long; subantennal distance 0.7 midocellar diameter long; scape 4 × as long as broad; flagellomere I 2.6-2.8 × as long as broad; flagellomere II 0.6 × as long as broad; flagellomere IX 1.3-1.5 × as long as broad. Mesosoma: pronotum strongly convex in lateral view, with medial sulcus; pronotal and scutal punctures, large, contiguous, not obscuring notauli; scutellum with large, deep, contiguous and slightly striatiform punctures; mesopleural punctures large, contiguous; metanotum with medial ridge or welt; metapleuron and propodeal side polished, impunctate; propodeal posterior enclosure with medial ridge, with a few irregular cross-ridges. Metasoma: Shiny, impunctate. Color: Head and mesosoma black, propleura and upper mesopleuron brown; scape brown; pedicel and flagellomeres I-III and IX-XI pale yellow to pale brown; flagellomeres IV-VIII dark brown; clypeus reddish; coxae whitish to pale brown; femora orange with whitish apices; tibiae and tarsi orange; tegula whitish; wing dark brown, with untinted band across wing at apex of Rs vein, medial vein and wing base, apical margin untinted, with dark stain adjacent to stigma; metasoma reddish brown; pubescence pale.

Male description.

Body ( Fig. 9 ): length 2.5-3.0 mm. Head: face ( Fig. 17 ) with scapal basin densely cross-ridged medially, occupying one-third of distance between eyes and basin height; frons with large, contiguous punctures; vertex ( Fig. 25 ) with broad lateral postocular extension, 1 midocellus diameter wide or wider, midocellus 2 midocellar diameters from eye margin, hindocellus 0.7-0.8 hindocellar diameter from eye margin; clypeal apex broadly rounded; malar space 2.3 midocellar diameters long; subantennal distance 0.8 midocellar diameter long; scape 2.3 × as long as broad; flagellomere I 3.2 × as long as broad; flagellomere II 2.2 × as long as broad; flagellomere IX 2.8 × as long as broad; antenna as long as head + mesosoma. Mesosoma: pronotum with medial sulcus, strongly convex in lateral view; pronotal and scutal punctation contiguous, large, not obscuring notauli; scutellar punctures 0.5 puncture diameters apart; mesopleural punctures large, contiguous; metanotum without medial longitudinal ridge or welt; metapleuron and propodeal side polished, impunctate; propodeal posterior enclosure irregularly cross-ridged, with medial longitudinal ridge. Metasoma: terga evenly punctate, punctures 1-2 puncture diameters apart. Color: head, including clypeus, and mesosoma black with metallic blue highlights dorsally; metasoma black, anterior face of tergum I brown; scape yellowish brown basally, rest of antenna dark brown; wings evenly light brown tinted; legs yellow, becoming dark brown on tarsi; pubescence pale.

Remarks.

This is the second most colorful species, after Noumeasega decorata . Both sexes are brightly colored, with metallic blue highlights on the mesosoma. This species appears to be confined to the southeastern end of the island.

Etymology.

The name refers to the bright blue and whitish coloration, f.

Figures

Figures 2 - 7. 2 - 4 Lateral view of body 5 - 7 Ventral view of mesopleuron and midcoxae.

Figures 8 - 11. Lateral view of male Noumeasega.

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.