Taxonomic study of Baeosega and its allies, with description of a new species of Nipponosega (Hymenoptera, Chrysididae, Amiseginae) Author Mita, Toshiharu https://orcid.org/0000-0001-8322-6045 Entomological Laboratory, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819 - 0395, Japan t3mita@agr.kyushu-u.ac.jp text ZooKeys 2021 2021-05-31 1041 1 25 http://dx.doi.org/10.3897/zookeys.1041.66267 journal article http://dx.doi.org/10.3897/zookeys.1041.66267 1313-2970-1041-1 D7AA23EA975C4195927EE76C377FCF48 9086C8941CCE58D5AFED14226CEA4232 Baeosega torrida Krombein, 1983 Figures 1B, C , 5 , 6 Baeosega torrida Krombein, 1983: 44, holotype ♀ by original designation. Type locality: Angunakolapelessa, Uva District, Southern Province, Sri Lanka. Specimens examined. Holotype . Sri Lanka ♀ , " SRI LANKA : Mon. Dist. / Angunakolapelessa / 22-28-III-1981 ", "collected on or/ in leaf litter", " K. V. Krombein / T. Wijesinhe / L. Weeratunge ", " HOLOTYPE / BAEOSEGA/ TORRIDA/ Karl V. Krombein ", "Type No./ 100453/ U.S.N.M." (hand-written) "2083468" . Paratypes . Sri Lanka 1♂ ( allotype ), same as holotype , but 100 m alt., 23.I.1979 , MsT (USNM); 1♂ , same as above (USNM). Diagnosis. The female of Baeosega torrida Krombein can be distinguished from B. humida Krombein by having the rugulose anterior declivity of T1 (Fig. 5C ) and the strongly granulated dorsum of metasoma (Fig. 5D ). Superficially, the reddish mesosoma is similar to Nipponosega females and Serendibula deraniyagalai Krombein. The male of B. torrida is similar to B. humida , however, the F3 is longer (3.5 x as long as wide) unlike B. humida . Other diagnostic characters are as follows: (female) body length 1.8-2.7 mm; head (Figs 1B , 5A, B ) black, bearing faint bronzy tint, punctate with interspaces granulated; malar sulcus indicated by a faint groove; occipital carina absent; mesosoma (Figs 1B , 5C ) punctate with interspaces strongly granulated; metasoma (Fig. 5D ) blackish; stout silvery subdecumbent setae on mesosoma and metasoma; (male) body length 2.3-2.5 mm; head (Figs 1C , 6A, B ) testaceous with dark flagellum, rarely around ocellar region brown, punctate by densely located punctures; occipital carina absent; mesosoma (Figs 1C , 6C ) testaceous with mesoscutum, mesoscutellum, metanotum and dorsum of propodeum brown or rarely reddish, punctate as head; punctures on mesepisternum largely contiguous; postero-lateral corner of propodeum with weakly producing angle. Figure 5. Baeosega torrida Krombein, holotype ♀ A head in frontal view B ditto, dorsal view C mesosoma D metasoma. Scale bars: 0.5 mm. Distribution. Sri Lanka (Uva Province: Monaragala District; Southern Province: Hambantota District; Central Province: Kandy District, Matale District) Figure 6. Baeosega torrida Krombein ♂ A head in frontal view, paratype B ditto, dorsal view, allotype C ditto, mesosoma. Scale bars: 0.5 mm.