The present study, conducted in West Bengal, India, explored the unique 'multi-chambered' appearance of certain spider eggs, leading to the discovery of gregarious parasitism in the idiobiont endoparasitoid Idris Förster (Hymenoptera: Scelionidae). Little is known about the roles of parasitoid Hymenoptera in regulating spider populations. Phylogenetic analysis based on the mitochondrial cytochrome c oxidase I marker identified five distinct species of Idris. These five gregarious species, identified in association with various spider hosts across multiple locations during a two-year study, offer new insights into host-parasitoid interactions and their adaptability in different host systems. Additionally, six novel host associations between egg parasitoids and five spider species from two families are documented. Under the family Scelionidae, Idris is the second genus, after Telenomus Haliday, adapting to gregarious development. Our findings emphasize the existence of diverse trophic interactions and life strategies in nature that are yet to be documented.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11856503PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0319209PLOS

Publication Analysis

Top Keywords

gregarious parasitism
8
idris förster
8
förster hymenoptera
8
hymenoptera scelionidae
8
spider eggs
8
spider
5
weaving web
4
gregarious
4
web gregarious
4
idris
4

Similar Publications

The present study, conducted in West Bengal, India, explored the unique 'multi-chambered' appearance of certain spider eggs, leading to the discovery of gregarious parasitism in the idiobiont endoparasitoid Idris Förster (Hymenoptera: Scelionidae). Little is known about the roles of parasitoid Hymenoptera in regulating spider populations. Phylogenetic analysis based on the mitochondrial cytochrome c oxidase I marker identified five distinct species of Idris.

View Article and Find Full Text PDF

Nymphal feeding suppresses oviposition-induced indirect plant defense in rice.

Nat Commun

January 2025

State key laboratory of rice biology and breeding & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou, China.

Feeding and oviposition by phytophagous insects are both known to trigger defenses in plants. Whether these two defenses functionally interact remains poorly studied, although these interactions are likely important for pests with overlapping generations. Here we investigated the differences and interaction between feeding- and oviposition-induced plant defenses triggered by the brown planthopper (BPH, Nilaparvata lugens), which gregariously feeds and oviposits on rice.

View Article and Find Full Text PDF

Parasitoids of Insect Pests Feeding on (Goodeniaceae) from Yongxing Island in South China Sea.

Insects

November 2024

Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.

(Goodeniaceae) is an important evergreen coastal plant on islands in the South China Sea, which shows excellent tolerance for salty and drought conditions. Nevertheless, the growth of populations on these islands in the South China Sea has been threatened by a few serious insect pests. However, we know little about the biology of these pests.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers are exploring the use of polyploid triploid females from the parasitoid Nasonia vitripennis as biocontrol agents to naturally reduce pest populations without establishing permanent wild populations.
  • The study examined various polyploid lines, including an old spontaneous mutation and new lines created through RNA interference targeting sex determination genes, comparing their ability to kill blowfly hosts and produce offspring.
  • Results showed that while triploid females killed as many or more hosts than diploid females, they produced significantly fewer viable offspring, confirming their potential effectiveness in pest control.
View Article and Find Full Text PDF

Improving parasitism success of a weakly virulent parasitoid strain.

J Insect Physiol

January 2025

EGCE, Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, Gif-sur-Yvette 91190, France. Electronic address:

Endoparasitoids possess a whole set of virulence factors to counter the immune response of their host, among which can be found venom, endosymbiotic viruses and ovarian proteins. Depending on the species, some factors are expected to be less necessary than others. Notably, venom is reported as inessential in some parasitoids bearing viruses.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!