Spider hawk in sand dunes:Anoplius bicinctus (Hymenoptera: Pompilidae) , a parasitoid wasp of the sex-role reversed spider Allocosa brasiliensis (Araneae: Lycosidae)
Stanley, EÃa; Toscano-Gadea, C; Aisenberg, A
Journal of Insect Behavior 26(4): 514-524
ISSN/ISBN: 0892-7553 DOI: 10.1007/s10905-012-9369-x
In general pompilid wasps parasitize female spiders due to their larger size and/or higher fat reserves compared to males. We describe parasitoid behavior of the pompilid wasp Anoplius bicinctus on Allocosa brasiliensis and investigate the frequencies of parasitoidism according to spider developmental stage. We performed field observations and recorded frequency and duration of parasitoidism behaviors, stage and sex of the paralyzed spider (n = 29). We found two distinct behaviors of carrying the spider (forward transport or backward transport), that were dependent of wasp size and were maintained during the transport process.