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 megaspila (Cameron, 1907) ( Figs 31–34 ) Material examined. Kerala : 1♀ Wayanad dt., Kunnamangalam , Mananthavady , near agricultural fields, 06.ii.2018 , Coll. Ritty V . James; Tamil Nadu : 2♀ Coimbatore dt., Kurangumudi, Valparai, 03.iii.2019 , Coll. C. Binoy. Diagnosis. Head with scrobe reaching anterior ocellus ( Fig. 32 ); pre-orbital carina absent; post-orbital carina present, reaching geno-temporal margin ( Fig. 31 , arrow); area below scrobe with a small median smooth and raised portion ( Fig. 32 ); mesosoma with umbilicate, close pits, the interstices rugose, tending to become smooth at scutellum ( Fig. 34 ); scutellum apically with emarginate flange and with dense pubescence ( Fig. 34 ); metacoxa without basoventral tooth; metafemur yellow with medial black region, ventrally with 12 or 13 differently sized teeth ( Fig. 33 ), without an inner basal tooth or protuberance; metasoma shorter than mesosoma ( Fig 31 ); Gt 1 smooth ( Fig. 34 ); ovipositor sheath slightly visible in dorsal view ( Fig. 34 ).