Cladobethylus insularis Kimsey & Dewhurst

Kimsey, Lynn S., 2019, Revision of the south Asian amisegine genus Cladobethylus Kieffer, 1922 (Hymenoptera, Chrysididae, Amiseginae), Journal of Hymenoptera Research 70, pp. 41-64 : 41

Cladobethylus insularis Kimsey & Dewhurst

Figs 26-29

Cladobethylus insularis Kimsey, Dewhurst & Nyaure, 2012: 3. Holotype male; Papua New Guinea, Northern Prov., Higaturu (BMNH).

Diagnosis.

This is the largest bodied species of Cladobethylus , with males averaging about 1.5 × the length of the known other species. Male Cl. insularis can be distinguished from Cl. aquilus , the only other species known from New Guinea by the pronotum without blue tints, a much broader zone of cross-ridging in the scapal basin, legs brown instead of yellow ( Cl. aquilus ) flagellomere I shorter (4 × as long as broad versus 5 × in Cl. aquilus ), and flagellomere XI shorter (5 × as long as broad versus 6 × in Cl. aquilus ). Features of female Cl. insularis not shared with other Cladobethylus include the bicolored antenna and legs, long clypeus (1 MOD long versus 0.3-0.6 MOD in other species), and narrow distance between the midocellus and nearest eye margin (up to 2 MOD versus 2.6-2.7 MOD in the others).

Male description.

Body (Figs 26 , 27 ). Length 5.0-7.0 mm. Head. Face about as long as broad across the eyes; genal area without foveae; midocellus 1.8 diameters from ocular margin; hindocellus 0.9 diameters from ocular margin; scapal basin with narrow, longitudinal submedial band of cross-ridges; malar space 3.5-3.8 MOD; subantennal distance 1 MOD long; interocular distance twice as wide as eye width in front view; postocular distance from ocular margin 1.8 MOD wide, postocular margin sharply angulate posterolaterally; flagellomere I 4.0-4.2 × as long as broad; flagellomere II 2.6-3.0 × as long as broad, setae length 0.5 × as flagellomere breadth; flagellomere IX 5.5-5.7 × as long as broad; ocular setulae 0.4 MOD long. Mesosoma (Fig. 9 ). Pronotum about as long as scutum; punctation on pronotum, scutum and mesopleuron large, deep and nearly contiguous; with scutellum polished with scattered tiny punctures; metapleuron polished, impunctate; propodeum laterally polished and impunctate with several cross ridges ventrally, posteromedial enclosure broadly rectangular, polished and impunctate medially. Metasoma. Tergum I with transverse medial band of tiny punctures 2-4 puncture diameters apart, impunctate otherwise; tergum II with two large ovoid patches of small punctures, contiguous to 1 puncture diameter apart, separated medially by impunctate band, with broad apical impunctate band; terga III-IV with tiny punctures 1 puncture diameter apart, becoming sparser toward apical margin. Color. Body black, with metallic bluish green highlights dorsally on head, pronotum and scutellum, sometimes faintly on metasomal terga; mandible and antenna dark brown; legs light reddish brown, except coxae dark brown to black basally; wing membrane brown-tinted, darkest in vicinity of stigma; wing veins dark brown.

Female description.

Body (Figs 28 , 29 ). Length. 4.5-5.5 mm. Head. Malar space 3.6-3.8 MOD wide; subantennal distance 0.6 MOD wide; interocular distance 1.2 × as wide as eye in front view; postocular distance 1.1 MOD wide, posterolateral margin broadly angulate; midocellus 2 diameters from ocular margin; hindocellus 1 diameter from ocular margin; flagellum fusiform, flagellomeres broadest apically, flagellomere I 2.2-2.4 × as long as broad, flagellomere II as long as broad, flagellomere X 1.3-1.5 × as long as broad. Mesosoma. Pronotum 1.2 × as long as scutum medially; mesopleural punctures contiguous; metapleuron smooth, impunctate; propodeum laterally smooth, impunctate, posteromedial enclosure subrectangular. Metasoma: tergum I with transverse medial band of scattered tiny punctures, otherwise impunctate; tergum II punctures 0.5-1.0 puncture diameters apart, with impunctate medial longitudinal band and posterior margin; tergum III-V punctures tiny, 0.5-1.0 puncture diameter apart with impunctate margin. Color: scape, pedicel black; flagellomeres I-III white, remaining flagellomeres black; coxae, femora, mid and hindtibiae black basally, whitish apically; foretibia and tarsi brown; wing membrane brown-tinted with dark brown veins.

Distribution.

Papua New Guinea, Northern (Oro) Province, Higaturu; 18 males, 6 females; ex Eurycantha insularis eggs (BME, BMNH).

Figures

Figures 26 - 33. 26, 27 Male Cladobethylus 28 - 33 female Cladobethylus 26, 28, 30, 32 lateral view 27, 29, 31, 33 dorsal view.

Figures 4 - 11. 4, 5, 8 - 11 Male Cladobethylus 6, 7 Female Cladobethylus 4, 6, 8, 10 Lateral view 5, 7, 9, 11 dorsal view.