caa a22 4500 397546955 CHVBK 20180308164740.0 cr unu---uuuuu 161202e19960901xx s 000 0 eng 10.1093/aesa/89.5.686 doi (NATIONALLICENCE)oxford-10.1093/aesa/89.5.686 Reproductive Biology and Behavior of a Thelytokous Species of Eretmocerus (Hymenoptera: Aphelinidae) Parasitizing Bemisia argentifolii (Homoptera: Aleyrodidae) [Elektronische Daten] [Heather J. McAuslane, Ru Nguyen] Eretmocerus sp., a thelytokous aphelinid parasitoid of Bemisia argentifolii Bellows & Perring, was imported into the United States from Hong Kong in June 1992. We investigated the foraging behavior and reproductive biology of this species as part of an evaluation of its potential for biological control of B. argentifolii. Parasitoids performed stereotyped behaviors upon encountering whitefly hosts, including antennation, circle-antennation, probing, postprobing host tapping, and host feeding. During 1-h videorecording periods, parasitoids were observed to accept all whitefly instars for host feeding and oviposition. After confining parasitoids for 24 h with whitefly nymphs, significantly more eggs were found under 2nd and 3rd instars than under 1st and 4th instars. Parasitoids fed honey, with no access to whitefly nymphs, lived significantly longer (12.5 d) than those given access to nymphs, but no honey (8.4 d). Lifetime fecundity averaged 92.8 female progeny per female, ranging from 3 to 147. Daily fecundity, measured as the number of whitefly nymphs parasitized per female each day for 9 d, averaged 20 for the first 6 d of life, and then declined to <10. On average, 4.5 nymphs were fed on by parasitoids each day during the first 3 d of life. Developmental period from oviposition to parasitoid emergence was significantly shorter in 3rd instars of the host (16.4 d), than in 2nd (16.8 d) or 1st instars (17.6 d). © 1996 Entomological Society of America Arthropod Biology nationallicence Eretmocerus nationallicence Bemisia argentifolii nationallicence whitefly nationallicence parasitoid nationallicence foraging behavior nationallicence McAuslane Heather J. aut Nguyen Ru Division of Plant Industry, P.O. Box 147100, Gainesville, FL 32614. aut Annals of the Entomological Society of America Oxford University Press 89/5(1996-09-01), 686-693 0013-8746 89:5<686 1996 89 aesa https://doi.org/10.1093/aesa/89.5.686 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/aesa/89.5.686 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McAuslane Heather J. aut NATIONALLICENCE 700 1- Nguyen Ru Division of Plant Industry, P.O. Box 147100, Gainesville, FL 32614 aut NATIONALLICENCE 773 0- Annals of the Entomological Society of America Oxford University Press 89/5(1996-09-01), 686-693 0013-8746 89:5<686 1996 89 aesa Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford