Discovery of two eucoilids (Hymenoptera) parasitic on beanflies from Indonesia.
Gronotoma hiranoi sp. nov., from West Java, is described and illustrated. This species is distinguishable from other members of the genus Gronotoma (described here from Indonesia for the first time) by the external characters of the head and mesosoma. Gronotoma adachiae, which has been recorded in Hawaii, was discovered in Indonesia for the first time (also from West Java), and is redescribed and illustrated. Both eucoilids are parasitic on beanflies (Diptera: Agromyzidae) including the major soyabean pest, Melanagromyza sojae (a new host record for G. adachiae) in Indonesia. Adults of the two Gronotoma species emerged from host puparia.