Beetles: Biology, Ecology, and Integrated Management

A special issue of Insects (ISSN 2075-4450).

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1640

Special Issue Editor


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Guest Editor
Laboratory of Agricultural Zoology and Entomology, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece
Interests: coleoptera; beetles; forest entomology; lepidoptera; insect distribution; agricultural entomology; integrated pest management; pest management; insect; entomology

Special Issue Information

Dear Colleagues,

Coleoptera is the largest order of insects on Earth, exhibiting vast diversity and various roles within their environments, where they are essential in diverse ecosystems, acting as either decomposers and pollinators or as pests that inflict significant damage on crops, stored products, urban plants, and forests. This Special Issue aims to cover the biology, ecology, and management of beetles in all anthromes including croplands, forests, food production, and structures. Thus, studies that examine aspects of biology and ecology of coleopterans, such as morphology, morphometry, phylogeny, physiology, life cycle, distribution, and behavior are of interest for this Special Issue. Furthermore, research efforts that present modern integrated pest management (IPM) strategies, which combine biological, pesticides, and proactive interventions for the effective and sustainable management of harmful beetles, are particularly relevant to the scope of this Special Issue.

Dr. Maria C. Boukouvala
Guest Editor

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Keywords

  • systematics
  • reproduction
  • evolution
  • biological control
  • chemical control
  • green insecticides
  • sublethal effects of insecticides
  • combined treatments

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Published Papers (2 papers)

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Research

27 pages, 3870 KB  
Article
Bark and Ambrosia Beetle Communities in Hazelnut Orchards of Italy and Georgia
by Eleonora Cresta, Nicolò Di Sora, Roberto Masturzi, Luca Rossini, Matteo Maspero, Marika Kodua, Tommaso De Gregorio, Miloš Petrović, Stefano Speranza and Mario Contarini
Insects 2025, 16(11), 1148; https://doi.org/10.3390/insects16111148 - 9 Nov 2025
Viewed by 506
Abstract
Bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) are major pests of agricultural and forest systems and include some species which attack hazelnut (Corylus avellana L.) as well. Although hazelnut cultivation is increasingly threatened by insect and mite pests, yet little is known [...] Read more.
Bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) are major pests of agricultural and forest systems and include some species which attack hazelnut (Corylus avellana L.) as well. Although hazelnut cultivation is increasingly threatened by insect and mite pests, yet little is known about how management practices can reduce infestations. This study investigated bark and ambrosia beetles in hazelnut orchards from two highly productive areas: Viterbo district (central Italy) and Samegrelo-Zemo Svaneti region (Republic of Georgia). Three phytosanitary management strategies were compared across 2023–2024: Integrated Pest Management, organic farming, and renaturalised orchards. Monitoring also evaluated three ethanol-baited trap designs: three designs in Italy (handmade red funnel [BR] and bottle [TT] and commercial multi-funnel [MF]) and only TT in Georgia. Anisandrus dispar, Hypothenemus eruditus, Xyleborinus saxesenii, and Xylosandrus germanus were detected in both countries, while Xyleborus monographus occurred only in Italy. Xyleborinus saxesenii was the dominant species in both regions. Beetle populations differed among management strategies, being lowest in organic orchards and highest in integrated and renaturalised systems. Trap performance also varied, with BR consistently outperforming commercial MF. These findings highlight the influence of management and monitoring tools on scolytine populations, offering practical insights for sustainable hazelnut production. Full article
(This article belongs to the Special Issue Beetles: Biology, Ecology, and Integrated Management)
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19 pages, 2947 KB  
Article
Mouthparts and Alimentary Tract of Flower-Visiting Monkey Beetles (Coleoptera: Scarabaeoidea: Hopliini): Insights into Feeding Preferences
by Michael Neulinger, Florian Karolyi, Jonathan F. Colville, Myriam E. Widmann, Jonas Kristl and Harald W. Krenn
Insects 2025, 16(9), 985; https://doi.org/10.3390/insects16090985 - 21 Sep 2025
Viewed by 830
Abstract
Monkey beetles (Hopliini, Scarabaeoidea) are a species-rich group of flower-visiting insects that are specialized to feed on floral tissue, pollen and/or nectar. We studied ten South African species, examining morphological features associated with their specific feeding preferences. This is the first attempt in [...] Read more.
Monkey beetles (Hopliini, Scarabaeoidea) are a species-rich group of flower-visiting insects that are specialized to feed on floral tissue, pollen and/or nectar. We studied ten South African species, examining morphological features associated with their specific feeding preferences. This is the first attempt in a limited number of beetle species to comparatively investigate both the mouthparts and the alimentary tract in relation to ingested food. Using light microscopy, we found cutting edges on the mandibles and galea teeth in flower tissue-feeding species. Pollen feeders have numerous bristles on the maxillae and a prominent mola on the mandibles that are likely used for gathering and grinding pollen. The elongate heads and mouthparts of the nectar feeders are considered an adaptation that enable these species to mop up nectar while probing flowers. Using µCT imaging and reconstructions of the entire alimentary tract, our morphometric results suggest that food preferences are not related to total relative gut length, although the ratio of foregut to body length was greater in pollen- and nectar-feeding monkey beetles than in floral tissue-feeders. The midgut of females tends to be longer relative to body size compared to males. Our work serves as a basis for generating hypotheses for future research that includes gut morphology in flower-visiting insects. Full article
(This article belongs to the Special Issue Beetles: Biology, Ecology, and Integrated Management)
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