Foenatopus achterbergi sp. n., a new species of the stephanid genus, is described and illustrated from Karnataka, India. The new species is compared with all the possible closely allied species from the Oriental region.

This study on the vespid fauna (Hymenoptera: Vespidae) reports 33 species belonging to 22 genera and four subfamilies from the state of Goa, India. Of these, 26 species, 18 genera, and two subfamilies are newly recorded from Goa. Illustrated keys to the genera and species of vespid wasps of Goa along with notes on their geographical distribution are provided.

This study presents a checklist of the vespid wasps (Hymenoptera: Vespidae) of India. A total of 288 species belonging to 60 genera and 5 subfamilies of Vespidae are known to occur within the political boundaries of India. A complete list of species, comprising valid scientific names, synonyms, geographical distribution within and outside India, along with references, is provided. One new synonymy is proposed.

In comprehensive rearing of butterflies from Goa, India, an interesting parasitoid complex of wasps and tachinid flies was found. Two new species of parasitic wasps are described and illustrated: Tetrastichus thetisae n. sp. (Hymenoptera: Eulophidae), a gregarious parasitoid reared from the pupa of Curetis thetis (Drury) (Lepidoptera: Lycaenidae) on the host plant Derris sp., and Sympiesis thyrsisae n. sp. (Hymenoptera: Eulophidae), a gregarious parasitoid reared from the caterpillar of Gangara thyrsis (Fabricius) (Lepidoptera: Hesperiidae) on the host plant Cocos nucifera L. Additionally, the following host-parasitoid associations are recorded: Amblypodia anita Hewitson (Lepidoptera: Lycaenidae) with Parapanteles sp. (Hymenoptera: Braconidae); Coladenia indrani (Moore) (Lepidoptera: Hesperiidae) with Sympiesis sp. (Hymenoptera: Eulophidae); Danaus chrysippus L. (Lepidoptera: Nymphalidae) with Sturmia convergens (Wiedemann) (Diptera: Tachinidae); Idea malabarica Moore (Lepidoptera: Nymphalidae) with Brachymeria sp. (Hymenoptera: Chalcididae) and Palexorista sp. (Diptera: Tachinidae); Notocrypta curvifascia Felder & Felder (Lepidoptera: Hesperiidae) with Cotesia erionotae (Wilkinson) (Hymenoptera: Braconidae); and Rapala sp. (Lepidoptera: Lycaenidae) with an inominate species close to Aplomya spp. (Diptera: Tachinidae). This discovery is the first record of Tetrastichus as parasitoid of Curetis thetis, Sympiesis as parasitoid of Gangara thyrsis and Coladenia indrani, Brachymeria and Palexorista as parasitoids of Idea malabarica, and Cotesia erionotae as parasitoid of Notocrypta curvifascia. Data on habitat, brief diagnoses and host records for all parasitoids are provided.

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