Cladobethylus darlingi Kimsey, 2019

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 darlingi Kimsey sp. nov.

Figs 12-15

Diagnosis.

Males of this species most closely resemble those of Cl. cruciger as discussed under that species. It can be distinguished from Cl. cruciger and other male Cladobethylus by the combination of the malar space 3.5 midocellar diameters wide or wider, interocular distance more than twice eye width in front view, flagellomere I less than 3.5 × as long as broad, flagellomere II less than 2.5 × as long as broad, and flagellomere XI more than 6.5 × as long as broad.

Male description.

Body (Figs 12 , 13 ). Length 3.0-5.0 mm. Head. Frons with punctures 1-2 puncture diameters apart; scapal basin primarily smooth with narrow strip of cross-ridges on either side of broad medial stripe and scattered punctures laterally along eye margins; clypeus long, projecting ventrally, projection apicomedially irregularly truncate; subantennal distance 1.2 MOD long; malar space 3.8 midocellar diameters wide; head about as long as wide; interocular distance 2.2 × eye width in front view; midocellus 2.4 diameters from ocular margin; ocelli arranged in nearly equilateral triangle; hindocelli separated from ocular margin by 1.0-1.2 diameters; flagellomere I 3.5-3.8 × as long as broad, setae length 0.3 × flagellar width; flagellomere II 2.3-2.5 × as long as broad; flagellomere XI 6.7 × as long as broad; apical flagellomeres asymmetrically slightly bulging medially. Mesosoma. Pronotum slightly shorter than scutum; mesopleural punctures 0.5 puncture diameters apart; metapleuron polished with 1-3 irregular transverse ridges; propodeum laterally polished, with subrectangular posteromedial enclosure. Metasoma. Tergum I with medial transverse zone of widely separated tiny punctures, otherwise impunctate; tergum II highly polished, with tiny punctures 2-10 puncture diameters apart, with impunctate longitudinal medial band and posterior margin; terga III-IV with tiny punctures, 1-3 puncture diameters apart, posterior margins impunctate. Color. Body black, except head vertex with purplish highlights and dorsum of pronotum, scutum, scutellum and metanotal triangle with metallic blue highlights; metasomal tergum I reddish basally, apically black, often with bluish highlights, terga II-V black, often with bluish highlights; legs including coxae yellow; antenna orange to light brown; wing membrane light brown-tinted, with dark brown veins.

Female description.

Body (Figs 14 , 15 ). Length 3.0 mm. Head. Frons punctures contiguous to 0.5 puncture diameter apart; scapal basin impunctate, with narrow band of cross-ridges submedially; clypeus short, truncate apicomedially; subantennal distance 0.4 MOD wide; malar space 4 MOD long; head 0.9 × as long as broad, interocular distance 1.1 × eye width in front view; postocular distance 0.4 MOD; vertex rounded angulate posterolaterally in dorsal view; midocellus 2.2 MOD from ocular margin; ocelli arranged in isosceles triangle; hindocelli separated from ocular margin by 1 hindocellar diameter; flagellomere I 2.3 × as long as broad; flagellomere II as long as broad; flagellomere X 1.8 × as long as broad. Mesosoma. Mesopleural punctation contiguous; metapleuron polished with metapleural-propodeal suture foveate; propodeum smooth, impunctate below wing. Metasoma. Tergum I and II with tiny widely separated punctures, 10 puncture diameters apart or more; terga III and IV punctures 1-3 puncture diameters apart, with impunctate apical rim. Color. Body black, without metallic highlights; legs brown; antenna brown; wing membrane light brown tinted, with dark brown veins.

Type material.

Holotype male: Indonesia: Borneo, West Kalimantan, Gunung Palung Nat. Park, Cabang Panti Res. Sta., 100m, Malaise trap, rainforest alluvial, 1°15'S, 110°5'E, 15 Jun-15 Aug, 1991, Darling, Rosichon, Sutrisno, IIS910122 (ROM). Paratypes: 8 males, 2 females; 3 males: same data as holotype; 2 males: same data, except rainforest sandstone, IIS910119; 1 male: rainforest sandstone, light gap, IIS910116; 1 male: 100-400m, rainforest sandstone, IIS910129; 1 male: 29/vi/1991, rainforest alluvial, screen sweep, IIS910165; 1 female: rainforest sandstone, Malaise trap pans, IIS9310134; 1 male: rainforest peat swamp, Malaise trap pans, IIS910132; 1 female: rainforest granite, Malaise trap pans, IIS910115; 1 male: 17-29/vi/1991, rainforest sandstone, Malaise trap, IIS910135 (BME, MZB, ROM).

Distribution.

Borneo. Additional non-type material from Borneo includes three males: East Kalimantan, Kac. Pujungan, Kayan-Mentarang Nat. Res., 21/iii/-4/iii/1992, 2°52'N, 115°49'E, lowland Dipt. Forest, Lalut Birai riparian vegetation 378m, screen sweep, DC Darling, IIS930008; 4 males: Brunei, Kuala Belalong, FSC, 4°34'N, 115°7'E, 18/v/1991, Malaise, N. Mawdsley, BMNH(E)1991-173; 1 male: iii/1991, BMNH(E)1991-173; 1 male: Brunei, Ulu Temburong base camp, 300m, 16/ii-9/iii/1982, M.C. Day; 1 male: North Borneo (SE), 19 km n, forest camp, 60 m, 21/xi/1962, K.J. Kuncheria; 1 male: 7/xi/1862; 1 male: Sarawak, 4th div., Gn. Mulu, RGS Exp. 17/xi/1923, D. Hollis, BM77-543; 1 male: British N. Borneo, Gomantong Caves, 22-26/xi/1958, TC Maa; 2 males: Borneo, Sarawak, sw Gunung Buda, 64km s Limbang, 4°13'N, 114°56'E, 22-28/xi/1996, MT, SL Heydon & S Fung; 1 male: 8-15/xi/1996.

Etymology.

The species is named after Chris Darling who not only collected this species, but also has collected many other Cladobethylus species in Southeast Asia.

Figures

Figures 12 - 19. 12, 13, 16, 17 Male Cladobethylus 14, 15, 18, 19 Female Cladobethylus 12, 14, 16, 18 Lateral view 13, 15, 17, 19 dorsal view.