The ontogeny of host-seeking behaviour in a parasitoid dipteran

The robber fly Mallophora ruficauda is one of the principal apiculture pests in the Pampas region of Argentina. As adults, they prey on honeybees and other insects, while as larvae they are ectoparasitoids of third-instar scarab larvae. Females of M. ruficauda lay eggs in tall grasses. After being d...

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Autores principales:	Crespo, José E., Castelo, Marcela Karina
Publicado:	2008
Materias:	Asilidae Host location Mallophora Scarabaeidae Semiochemicals apiculture beetle ectoparasite honeybee host specificity ontogeny parasitoid semiochemical age animal appetite Argentina article comparative study fly host parasite interaction larva orientation parasite physiology Age Factors Animals Appetitive Behavior Diptera Host-Parasite Interactions Larva Orientation Parasites Apis mellifera Cyclocephala Hexapoda Mallophora ruficauda Poaceae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v54_n5_p842_Crespo http://hdl.handle.net/20.500.12110/paper_00221910_v54_n5_p842_Crespo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00221910_v54_n5_p842_Crespo
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spelling	paper:paper_00221910_v54_n5_p842_Crespo2023-06-08T14:47:12Z The ontogeny of host-seeking behaviour in a parasitoid dipteran Crespo, José E. Castelo, Marcela Karina Asilidae Host location Mallophora Scarabaeidae Semiochemicals apiculture beetle ectoparasite honeybee host specificity ontogeny parasitoid semiochemical age animal appetite Argentina article comparative study fly host parasite interaction larva orientation parasite physiology Age Factors Animals Appetitive Behavior Argentina Diptera Host-Parasite Interactions Larva Orientation Parasites Apis mellifera Asilidae Cyclocephala Diptera Hexapoda Mallophora Mallophora ruficauda Poaceae Scarabaeidae The robber fly Mallophora ruficauda is one of the principal apiculture pests in the Pampas region of Argentina. As adults, they prey on honeybees and other insects, while as larvae they are ectoparasitoids of third-instar scarab larvae. Females of M. ruficauda lay eggs in tall grasses. After being dispersed by the wind, larvae drop to the ground, where they dig in search of their hosts. It is known that M. ruficauda larvae exhibit active host-searching behaviour; however, it is unknown which instars are involved in this search. We carried out experiments in the laboratory to determine which larval stages are involved in host location. We report here that the second instar of M. ruficauda orientates specifically toward a source of Cyclocephala signaticollis odour, while first larval instar is indifferent to the host cues. Furthermore, we have determined that second instar larvae are more motivated to initiate exploratory movements than larva of the first stage. So far as we know, this is the first case among parasitoids, where the second instar is responsible for host location. Here we provide relevant information of this parasitoid's host-searching strategy, increasing the available knowledge of this significant apiculture pest. © 2008 Elsevier Ltd. All rights reserved. Fil:Crespo, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castelo, M.K. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v54_n5_p842_Crespo http://hdl.handle.net/20.500.12110/paper_00221910_v54_n5_p842_Crespo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Asilidae Host location Mallophora Scarabaeidae Semiochemicals apiculture beetle ectoparasite honeybee host specificity ontogeny parasitoid semiochemical age animal appetite Argentina article comparative study fly host parasite interaction larva orientation parasite physiology Age Factors Animals Appetitive Behavior Argentina Diptera Host-Parasite Interactions Larva Orientation Parasites Apis mellifera Asilidae Cyclocephala Diptera Hexapoda Mallophora Mallophora ruficauda Poaceae Scarabaeidae
spellingShingle	Asilidae Host location Mallophora Scarabaeidae Semiochemicals apiculture beetle ectoparasite honeybee host specificity ontogeny parasitoid semiochemical age animal appetite Argentina article comparative study fly host parasite interaction larva orientation parasite physiology Age Factors Animals Appetitive Behavior Argentina Diptera Host-Parasite Interactions Larva Orientation Parasites Apis mellifera Asilidae Cyclocephala Diptera Hexapoda Mallophora Mallophora ruficauda Poaceae Scarabaeidae Crespo, José E. Castelo, Marcela Karina The ontogeny of host-seeking behaviour in a parasitoid dipteran
topic_facet	Asilidae Host location Mallophora Scarabaeidae Semiochemicals apiculture beetle ectoparasite honeybee host specificity ontogeny parasitoid semiochemical age animal appetite Argentina article comparative study fly host parasite interaction larva orientation parasite physiology Age Factors Animals Appetitive Behavior Argentina Diptera Host-Parasite Interactions Larva Orientation Parasites Apis mellifera Asilidae Cyclocephala Diptera Hexapoda Mallophora Mallophora ruficauda Poaceae Scarabaeidae
description	The robber fly Mallophora ruficauda is one of the principal apiculture pests in the Pampas region of Argentina. As adults, they prey on honeybees and other insects, while as larvae they are ectoparasitoids of third-instar scarab larvae. Females of M. ruficauda lay eggs in tall grasses. After being dispersed by the wind, larvae drop to the ground, where they dig in search of their hosts. It is known that M. ruficauda larvae exhibit active host-searching behaviour; however, it is unknown which instars are involved in this search. We carried out experiments in the laboratory to determine which larval stages are involved in host location. We report here that the second instar of M. ruficauda orientates specifically toward a source of Cyclocephala signaticollis odour, while first larval instar is indifferent to the host cues. Furthermore, we have determined that second instar larvae are more motivated to initiate exploratory movements than larva of the first stage. So far as we know, this is the first case among parasitoids, where the second instar is responsible for host location. Here we provide relevant information of this parasitoid's host-searching strategy, increasing the available knowledge of this significant apiculture pest. © 2008 Elsevier Ltd. All rights reserved.
author	Crespo, José E. Castelo, Marcela Karina
author_facet	Crespo, José E. Castelo, Marcela Karina
author_sort	Crespo, José E.
title	The ontogeny of host-seeking behaviour in a parasitoid dipteran
title_short	The ontogeny of host-seeking behaviour in a parasitoid dipteran
title_full	The ontogeny of host-seeking behaviour in a parasitoid dipteran
title_fullStr	The ontogeny of host-seeking behaviour in a parasitoid dipteran
title_full_unstemmed	The ontogeny of host-seeking behaviour in a parasitoid dipteran
title_sort	ontogeny of host-seeking behaviour in a parasitoid dipteran
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v54_n5_p842_Crespo http://hdl.handle.net/20.500.12110/paper_00221910_v54_n5_p842_Crespo
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The ontogeny of host-seeking behaviour in a parasitoid dipteran

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