Cladobethylus thailandicus 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 thailandicus Kimsey sp. nov.

Figs 34-37

Diagnosis.

This is a distinctive species. Males can be distinguished by flagellomere XI 5 × as long as broad (shared with Cl. ceylonicus and Cl. densepunctatus ), scapal basin without cross-ridging, subantennal distance more than 1 midocellar diameter long and body lacking metallic bluish highlights. Females have a bicolored antenna, with the basal segments whitish and the apical segments dark brown, the postocular distance is less than one midocellar diameter, and the gular bridge lacks occipital foveae.

Male description.

Body (Figs 34 , 35 ). Length 2.5-4.0 mm. Head. Frons punctures 1-2 puncture diameters apart; scapal basin primarily smooth with short strip of cross-ridges on either side of broad medial stripe; clypeus long and truncate or slightly emarginate apically; subantennal distance 1.2 midocellar diameters; malar space 3.5 midocellar diameters long; head about as long as wide; midocellus 1.7 diameters from ocular margin; ocelli arranged in nearly equilateral triangle; hindocelli separated from ocular margin by one diameter; postocular distance 2.5 midocellar diameters; flagellomere I 4 × as long as broad, setae 0.5 × as long as flagellomere breadth; flagellomere II 3.2 × as long as broad; flagellomere IX 5 × as long as broad. Mesosoma. Pronotum about 0.9 × as long as scutum; mesopleural punctures 0.5-1.0 puncture diameters apart; metapleuron smooth, impunctate; propodeum laterally wrinkled, with posteromedial enclosure subrectangular. Metasoma. Tergum I essentially impunctate; tergum II with few, widely scattered, tiny punctures; terga III-V with dense, tiny punctures 0-0.5 puncture diameters apart, with impunctate apical margin. Color. Body black, except pronotum, scutum, scutellum and medial triangle of metanotum with metallic blue highlights; legs including coxae yellow to orange; antenna brown; wing membrane brown, veins dark brown.

Female description.

Body (Figs 36 , 37 ). Length 2.5-4.0 mm. Head. Frons punctures contiguous to 0.5 puncture diameters apart; scapal basin primarily smooth with short strip of cross-ridges on either side of broad medial stripe; clypeus long and apically truncate or slightly emarginate; subantennal distance 0.8 midocellar diameter long; malar space 3.8 midocellar diameters long; head as long as wide; midocellus 2 diameters from ocular margin; ocelli arranged in nearly equilateral triangle; hindocelli separated from ocular margin by 0.5-0.8 diameters; postocular distance 0.5 MOD; flagellum fusiform; flagellomere I 2.4 × as long as broad; flagellomere II 0.7-0.9 × as long as broad; flagellomere X twice as long as broad. Mesosoma. Pronotum about as long as scutum; mesopleural punctures contiguous to 0.5 puncture diameter apart; metapleuron entirely cross-ridged; propodeum laterally wrinkled, with posteromedial enclosure subrectangular. Metasoma. Terga I and II largely impunctate with narrow lateral band of tiny punctures, 3-6 puncture diameters apart; tergum III with tiny punctures 1-2 puncture diameters apart, separated medially by impunctate longitudinal stripe and apical impunctate rim; tergum IV punctures tiny, separated by 0.5-1.0 puncture diameters with narrow impunctate rim. Color. Body black, except pronotum and scutum with faint blue highlights; legs including coxae yellow; scape, pedicel and flagellomeres I-III pale orange to whitish, remaining flagellomeres brown, except tip of apical flagellomere whitish; wing membrane brown tinted, with dark brown veins.

Type material.

Holotype male: Thailand: Nakon Nayok Prov., Khao Yai NP, Lam Takong view point, 14°25.762'N, 101°23.527'E, 732m, 5-12/x/2006, W. Sook Kho, T741 (QSBG). Paratypes. 7 males, 10 females. 1 female: Nakhon Nayok Prov., Khao Yai, 14°24.619'N, 101°22.708'E, MT, 19-26/vii/2006, P. Sandao, T148; 1 female: Khao Yai NP, 6/vi/1965, P. D. Ashlock; 1 males, 2 females: 180 km NE Bangkok, Khao Yai NP, 780m, 11-18/iv/1990, MT, B.V. Brown; 2 males, 1 female: Nakhon Si Prov., Thammarat, Namtok Yong NP, 8°14.3'N, 99°48.3'E, 952m, Malaise trap, Paiboon, 30/iii-6/iv/2009, T4658; 1 male: Thammarat, Namtok Yong NP, road to Khao Mhen 150m from Nern 499, 8°16.959'N, 99°39.149'E, Malaise trap, 8-15/vi/2008, S. Samnaokan, T3095; 1 male: Trang Prov., Khaophappha Khaochang, 200m, 1-3/i/1964, GA Samuelson, Malaise trap, Bishop; 1 male: Chanthaburi Prov., Khao Khitchakut NP, Khao Prabaht Peak, 875m, 12°50.4'N, 102°10'E, MT, S. Charoenchai, 6-13/iii/2009, T4060; 1 male: Phetchabun Prov., Nam Nao NP, 16°43.695'N, 101°33.797'E, 921m, YPT, 25-26/x/2006, N. Hongyothi, T1006; 1 female: Petchaburi Prov., Kaeng Krachan NP, 320m, 12°47.9'N, 99°27.2'E, 27/vi-4/vii/2008, MT, Sirichai, T4338; 1 female: Nakhon Ratchasima Prov., Khao Yai NP, 700-800m, 18-24/iv/1990, MT, E. Fuller; 1 female; Tiger trail, 760m, MT, 14°27.5'N, 101°22'E, 26/vi-2/vii/2007, P. Sandao, T2232; 1 female: Chiang Mai Prov., Doi Chiangdao NP, Huai Na Lao, 500m, 19°24.731'N, 98°55.315'E, MT, 3-9/v/2008, Jugsu & Watwanich, T5803; P. Sandao, T2232; 1 female: Surat Thani Prov., Khao Sok NP, Bang Huaraed, 122m, 8°54.6'N, 98°30.5'E, 5-12/v/2009, MT, Pongphan, T4861 (BME, QSBG).

Distribution.

Thailand: Chanthaburi, Chiang Mai, Nakhon Nayok, Nakhon Si, Nakhon Ratchasima, Phetchabun, Phetchaburi, Surat Thani, and Trang Provinces.

Etymology.

The species is named after the country of collection.

Figures

Figures 34 - 37. 34, 35 Male Cladobethylus thailandicus 36, 37 Female Cladobethylus 34, 36 lateral view 35, 37 dorsal view.