Author(s): Scheibelreiter, G. K.
Title: Zur Kenntnis der Biologie von Tenthredo costata Klug (Hymenoptera: Tenthredinidae)
Year: 1978
Volume: 31
Pages: 173-180.
Abstract: The biology of the sawfly Tenthredo costata Klug, common in the East-Mediterranean, was studied for the first time. Egg laying and development of the larvae occured on Chondrilla juncea L. and C. ramosissima Sibht. at Sm. (Compositae). An average of 1-2 eggs, with a maximum of up to 14, were laid per leaf. The incubation period lasted for 8-9 days. The larvae wich are described have 5 instars (4 feeding instars, 1 pre-spinning). No egg parasites were found. However, old larvae were parasited by Priopoda strictia (F.), Ichneumonidae, and one Tachinid species at a rate of 30-40%. T. costata might be of value as biocontrol agent against C. juncea in Australia.Journal: Folia entomologica hungaricaJournal abbreviation: Folia ent. hung.ISSN: 0373-9465Publisher: , Editor(s): Mahunka, S.