BELAVADI, V. VNAGARAJ SHASTRI, S.2018-04-162018-04-162017-07-24Th-11660http://krishikosh.egranth.ac.in/handle/1/5810043503In the present study 346 spider wasps were examined which were collected from different parts of Karnataka, represented 17 species, 11 genera belonging to two subfamilies viz., Pepsinae and Pompilinae. Description of each species is provided along with the keys for their identification and checklist of Karnataka is provided. Subfamily Pepsinae was represented by eleven species under six genera. The genera Macromeris, Caliadurgus, Leptodialepis, Mygnimia represented by single species viz., Macromeris violacea, Caliadurgus electus, Leptodialepis sericosoma, Mygnimia flava respectively. The genus Auplopus was represented by four species viz., Auplopus blandus, Auplopus bipennis, Auplopus hysipyla and Auplopus celaeno. The genus Hemipepsis represented with three species viz., Hemipepsis consanguineus, Hemipepsis perplexa and Hemipepsis rubida. Subfamily Pompilinae was represented by six species under five genera. The genera Tachypompilus, Paracyphononyx, Episyron, Atopopompilus represented by single species viz., Tachypompilus analis, Paracyphononyx wroughtoni, Episyron infestus, Atopopompilus daedulus respectively. The genus Batozonellus represented by two species viz., Batozonellus bioaculatus and Batozonellus unifasciatus. A phylogenetic study of the recorded species was made by preparing a cluster diagram from 17 selected characters. Illustrations and characters of male genitalia were provided for 10 species of Pompilidae. This includes six species from subfamily Pepsinae and four species from subfamily Pompilinae. Macromeris violacea was recorded with two different prey species viz., Oliosa sp. and Heteropoda sp. belonging to family Sparassidae (Araneae: Arachnida).ennullThesis