Abstract
BackgroundThe genus Phytodietus Gravenhorst, 1829 is a species rich group of ichneumonid parasitoid wasps. It is represented in all zoogeographical regions, but knowledge of Phytodietus species in the Oriental region is patchy and restricted to some countries.New informationHere the genus Phytodietus is recorded from Thailand for the first time based on three species. Diagnosis and illustrations of P. longicauda (Uchida, 1931), P. pitambari Kaur et Jonathan, 1979 and P. spinipes (Cameron, 1905) are given. Furthermore, known distributional and biological data of the species are summarised and an identification key to the species is provided.
Highlights
Phytodietus Gravenhorst, 1829 (Hymenoptera, Ichneumonidae) belonging to the subfamily Tryphoninae, tribe Phytodietini, consists of species that are koinobiont ectoparasitoids of semi-concealed larvae of several families of Lepidoptera, mainly Tortricidae and Pyralidae (Bennett 2015)
22 species of Phytodietus have been recorded in the Oriental region: 10 species from India, 7 from Philippines, 6 from Myanmar, 5 from China, 4 from Taiwan, 3 from Indonesia and 1 from Sri Lanka (Gupta 1987, Kaur and Jonathan 1979, Yu et al 2012)
Some of the Phytodietus species were expected to occur in other countries of South East Asia, but no species of this genus had been recorded from Thailand so far
Summary
The genus Phytodietus Gravenhorst, 1829 is a species rich group of ichneumonid parasitoid wasps. It is represented in all zoogeographical regions, but knowledge of Phytodietus species in the Oriental region is patchy and restricted to some countries. The genus Phytodietus is recorded from Thailand for the first time based on three species. Diagnosis and illustrations of P. longicauda (Uchida, 1931), P. pitambari Kaur et Jonathan, 1979 and P. spinipes (Cameron, 1905) are given. Known distributional and biological data of the species are summarised and an identification key to the species is provided. Ichneumonidae, P. longicauda, P. pitambari, P. spinipes, parasitoid wasp, Oriental region, South East Asia
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