Chalcidid parasitoids (Hymenoptera: Chalcididae) of Opisina arenosella (Walker) (Lepidoptera: Xyloryctidae) on coconut palm in southern India Author Binoy, C. Independent researcher, Sreeragam, Chereekandy, Elathur, Kozhikode Kerala- 673303, India. Author Nivetha, S. 0009-0002-4102-911X sekarnivi25112000@gmail.com Author Arulprakash, R. 0009-0002-4102-911X sekarnivi25112000@gmail.com text Zootaxa 2024 2024-11-12 5537 4 493 510 http://dx.doi.org/10.11646/zootaxa.5537.4.3 journal article 10.11646/zootaxa.5537.4.3 1175-5326 14240326 26BA78B1-2B0D-4560-A393-1DC1C8E5342E Brachymeria nosatoi Habu, 1966 ( Figs 40–43 ) Material examined. Kerala : 1♀ Malappuram dt., Calicut University Botanical Garden , 16–22.ix.2019 , Coll. C. Binoy. Diagnosis. Head a little wider than mesosoma in dorsal view; scrobe clearly reaching median ocellus ( Fig. 41 ); area below scrobe smooth and glabrous; preorbital carina present ( Fig. 41 , arrow); postorbital carina present, conspicuous, reaching genotemporal margin; mesosoma with compact setigerous punctures ( Fig. 43 ), the interstices rugose-carinate; apical margin of scutellum crenulate ( Fig. 43 ); metacoxa distinctly pitted without ventromesal tooth; metafemur black with large apical yellow region, surface finely punctate, densely pubescent, ventrally with 11–13 irregular small teeth; metatibia yellow apically and basally, but with brown-black region medially ( Fig. 42 ); metasoma distinctly longer than mesosoma, acuminate ( Fig. 40 ); Gt 1 shiny, smooth ( Fig. 43 ); ovipositor sheath punctate, distinctly visible dorsally ( Fig. 43 ).