Oviposition and Immature Development of the Parasitoid Fly Compsilura concinnata (Meigen) (Diptera: Tachinidae)

Ichiki, Ryoko T.; Nakamura, Satoshi

doi:10.6090/jarq.41.227

Cited by 4 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 Eggs may be laid on the host integument or, in some species (eg, Carcelia gnava ), they may even be projected on the host body. More rarely (eg, Compsilura concinnata 17 ), eggs are injected into the host haemocoel because some female sternites are used as piercing structures to perforate the host integument and guide the ovipositor into the cut. Some species, including Rondania cucullata , may insert eggs into the host via natural openings such as the buccal or genital-anal cavity.…”

Section: Oviposition Strategies Of Tachinid Parasitoidsmentioning

confidence: 99%

Oviposition Strategies of Tachinid Parasitoids: TwoExoristaSpecies as Case Studies

Dindo

Nakamura

2018

Int J�Insect�Sci

Self Cite

View full text Add to dashboard Cite

Oviposition strategies and mechanisms of host selection in parasitoids may be crucial for the success of parasitization and parasitoid production. These aspects are far less known in tachinid parasitoids than in hymenopteran parasitoids. Depending on the species, parasitoid flies may adopt direct or indirect oviposition strategies. The ‘direct type’ females lay eggs on or, in relatively a few species, inside the host body. This review describes cues involved in host selection by tachinid parasitoids and their oviposition strategies and presents 2 case studies in more detail, focusing on Exorista larvarum and Exorista japonica. These 2 polyphagous parasitoids of Lepidoptera lay macrotype eggs directly on the host cuticle. Both species have been used as biological control agents in inoculative release against the gypsy moth Lymantria dispar in the Northern United States. Improved knowledge of the mechanisms involved in host selection and oviposition strategies may increase the possibility of eliciting oviposition by these tachinids on target lepidopterous hosts (and even artificial substrates), thus facilitating their rearing and ultimately making their exploitation as regulators of target insect pests more feasible and efficient.

show abstract

Section: Oviposition Strategies Of Tachinid Parasitoidsmentioning

confidence: 99%

Oviposition Strategies of Tachinid Parasitoids: TwoExoristaSpecies as Case Studies

Dindo

Nakamura

2018

Int J�Insect�Sci

Self Cite

View full text Add to dashboard Cite

show abstract

Limited sex differences in plastic responses suggest evolutionary conservatism of thermal reaction norms: A meta-analysis in insects

et al. 2022

View full text Add to dashboard Cite

Temperature has a profound effect on the growth and development of ectothermic animals. However, the extent to which ecologically driven selection pressures can adjust thermal plastic responses in growth schedules is not well understood. Comparing temperature‐induced plastic responses between sexes provides a promising but underexploited approach to evaluating the evolvability of thermal reaction norms: males and females share largely the same genes and immature environments but typically experience different ecological selection pressures. We proceed from the idea that substantial sex differences in plastic responses could be interpreted as resulting from sex‐specific life‐history optimization, whereas similarity among the sexes should rather be seen as evidence of an essential role of physiological constraints. In this study, we performed a meta‐analysis of sex‐specific thermal responses in insect development times, using data on 161 species with comprehensive phylogenetic and ecological coverage. As a reference for judging the magnitude of sex specificity in thermal plasticity, we compared the magnitude of sex differences in plastic responses to temperature with those in response to diet. We show that sex‐specific responses of development times to temperature variation are broadly similar. We also found no strong evidence for sex specificity in thermal responses to depend on the magnitude or direction of sex differences in development time. Sex differences in temperature‐induced plastic responses were systematically less pronounced than sex differences in responses induced by variations in larval diet. Our results point to the existence of substantial constraints on the evolvability of thermal reaction norms in insects as the most likely explanation. If confirmed, the low evolvability of thermal response is an essential aspect to consider in predicting evolutionary responses to climate warming.

show abstract

Evolutionary aspects of the parasitoid life strategy, with a particular emphasis on fly–spider interactions

Sýkora

Barták

Heneberg

et al. 2022

Biological Journal of the Linnean Society

View full text Add to dashboard Cite

Parasitoids are significant ecological elements of terrestrial food webs and have evolved within seven insect orders. Interestingly, however, associations with spiders as hosts have evolved only in two insect orders, Diptera and Hymenoptera. Here, we summarize various aspects of host utilization by dipteran flies with an emphasis on associations with spiders. Our synthesis reveals that spider flies (family Acroceridae) have evolved a unique life strategy among all the parasitoid taxa associated with spiders, in which koinobiont small-headed flies utilize an indirect oviposition strategy. This indirect oviposition in spider flies is inherited from Nemestrinimorpha ancestors which appeared in the Late Triassic and is characterized by the evolution of planidial larvae. Further, we discuss the advantages and disadvantages of indirect oviposition in spider flies. On the one hand, indirect oviposition allows the fly to avoid contact/wrestling with spider hosts. On the other hand, larval survival is low because the planidium must actively seek out and infect a suitable host individually. The risk of failure to find a suitable spider host is offset by the fly’s extremely high fecundity.

show abstract

Oviposition and Immature Development of the Parasitoid Fly Compsilura concinnata (Meigen) (Diptera: Tachinidae)

Cited by 4 publications

References 18 publications

Oviposition Strategies of Tachinid Parasitoids: TwoExoristaSpecies as Case Studies

Oviposition Strategies of Tachinid Parasitoids: TwoExoristaSpecies as Case Studies

Limited sex differences in plastic responses suggest evolutionary conservatism of thermal reaction norms: A meta-analysis in insects

Evolutionary aspects of the parasitoid life strategy, with a particular emphasis on fly–spider interactions

Contact Info

Product

Resources

About