Isegama

Li, Shuang-Shuang & Xu, Zai-Fu, 2016, First record of Isegama Krombein (Hymenoptera, Chrysididae, Amiseginae) from China, with description of a new species, Zootaxa 4189 (1), pp. 189-195 : 190

Key to the species of female Isegama

1. Head, pronotum, mesoscutum, mesoscutellum and metanotum black, with blue metallic tints; vertex strongly convex in frontal view (Fig. 17 in Kimsey 1986); eyes bulging farthest below middle (Fig. 17 in Kimsey 1986); gena without genal carina; scape, pedicel and F1–F3 yellow, F4–F11 brown; legs entirely yellow........................... I. malaysiana Kimsey

- Head, pronotum, mesoscutum, mesoscutellum and metanotum black, without metallic tints; vertex slightly convex in frontal view ( Fig. 5 ); eyes bulging farthest above middle ( Fig. 5 ); gena with ( Figs 1 , 3 ) or without genal carina; antenna with flagellomeres entirely blackish-brown to black; legs with at least coxae blackish-brown to black....................... 2

2. Genal carina present ( Figs 1 , 3 ); median enclosure of metanotum with pair of anterior pits ( Figs 4 , 8 ); dorsal surface of metapectal-propodeal complex with pair of subcircular, polished and impunctate enclosures, enclosures about as wide as long ( Fig. 9 ); head width 1.13 × height in frontal view............................................... I. sinica sp. nov.

- Genal carina absent; median enclosure of metanotum with only single anterior pit; dorsal surface of metapectal-propodeal complex with pair of transverse, polished and impunctate enclosures, enclosures about two times as wide as long......... 3

3. Head width 1.22 × height in frontal view; lower face with subocular surface more strongly converging ( Fig. 7 in Krombein 1983); pronotum shorter than mesoscutum in median length.................................. I. meaculpa Krombein

- Head width 1.02 × height in frontal view; lower face with subocular surface less strongly converging ( Fig. 8 in Krombein 1983); pronotum as long as mesoscutum in median length................................... I. aridula (Krombein)

Figures

FIGURE 1. Isegama sinica sp. nov., ♀, holotype, habitus, lateral view.

FIGURES 5 – 7. Isegama sinica sp. nov., ♀, holotype. 5. Head, frontal view; 6. Metasoma, dorsal view; 7. Forewing.

FIGURES 2 – 4. Isegama sinica sp. nov., ♀, holotype. 2. Antennae, head and pronotum, dorsal view; 3. Antennae, ventral view; 4. Head and mesosoma, dorsal view.

FIGURES 8 – 10. Isegama sinica sp. nov., ♀, paratype from Hainan. 8. Head and mesosoma, dorsal view; 9. Metanotum and metapectal-propodeal complex, postero-dorsal view; 10. Metasoma, dorsal view.