Multimodal defensive strategies in larvae of two Hemichroa sawfly species

  title={Multimodal defensive strategies in larvae of two Hemichroa sawfly species},
  author={J. Boev{\'e}},
  journal={Journal of Hymenoptera Research},
  • J. Boevé
  • Published 2015
  • Biology
  • Journal of Hymenoptera Research
The two European sawfly species in the genus Hemichroa are a contrast in behaviour and appearance, since H. crocea is gregarious and brightly coloured, whereas H. australis is solitary and cryptic. Here, their defensive strategies are compared by integrating further components. In both species, ventral glands are minute, and no distinctive volatiles were detected by chemical analysis; hence, these exocrine glands are probably irrelevant in defence. Ethanol extracts of body parts were feeding… Expand
3 Citations

Figures and Tables from this paper

The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae)
A phylogenetic analysis based on four genes (mitochondrial COI and nuclear NaK, POL2, and TPI) supports the current generic classification of West Palaearctic nematine sawflies. Expand
Survival Sounds in Insects: Diversity, Function, and Evolution
Insect defense sounds have been reported for centuries. Yet, aside from the well-studied anti-bat sounds of tiger moths, little is understood about the occurrence, function, and evolution of theseExpand
Plotseling een wespenspecialist minder: herinneringen aan Pierre Thomas (1949-2016)
Op zaterdagavond 30 juli begon ik te bladeren in het nieuwe augustusnummer van het Natuurhistorisch Maandblad. Het was een themanummer over insecten van de Meinweg en misschien zou er iets van PierreExpand


Modes of defense in nematine sawfly larvae
It is suggested that the various volatile irritants secreted by ventral glands are aimed primarily against insects (e.g., ants) and only secondarily against birds. Expand
The characteristics and bhaviour of the Saw-Fly Perga affinis affinis (Hymenoptera).
Perga affinis affinis is a member of a complex of saw-flies, widely distributed in south-eastern Australia, which are responsible for defoliation of several valuable woodland eucalypts. ReproductionExpand
Ecophysiology of dorsal versus ventral cuticle in flattened sawfly larvae
Data from the literature indicate that the defence strategy in P. luridiventris larvae relies on being visually cryptic towards avian predators and tactically cryptic towards arthropod predators and parasitoids, and that the dorsal, red layer is the exocuticle, mainly composed of insoluble proteins. Expand
The loose connection between collective host ranges and species diversity provides empirical support for theoretical models suggesting that speciation rates are a function of a complex interplay between “intrinsic” niche width and resource heterogeneity. Expand
The Sawfly Genus Hemichroa Stephens : A Review of Species (Hymenoptera: Tenthredinidae)
The larvae feed on the foliage of Alnus, Betula, Corylus, Salix, Crataegus, Amelanchier, and Prunus. Expand
The secretion of the ventral glands in Nematus sawfly larvae
Abstract Nematine larvae possess ventral glands which contain compounds that protect the larvae from predation. More than 50 volatile compounds have been identified in secretions from the glands ofExpand
Cooperative signaling as a potential mechanism for cohesion in a gregarious sawfly larva, Perga affinis
  • L. Fletcher
  • Biology
  • Behavioral Ecology and Sociobiology
  • 2007
Investigation of the role of tapping as a mechanism of cohesion in situations between a separated larva and a group found that it facilitates cohesion as groups responded to the tapping of lone larvae and did so preferentially over other larval behaviors. Expand
Behavioral and chemical ecology
The role of Nepotism, Co-operation & Competition in the Evolution of Avian Families and the role of cuticular Hydrocarbons in Insects are discussed. Expand
World Catalog of Symphyta (Hymenoptera)
The first complete World Catalog of sawflies (Hymenoptera, suborder Symphyta) for over 100 years is presented and contains references to the original descriptions and provides brief distributional data for 803 genera, 8353 species and 161 subspecies in addition to the nominal subspecies. Expand
Zur Biologie and Parasitierung der BlattwespeHemichroa crocea (Geoffr.)(Hymenopt., Nematinae), eines Schädlings der Grünerle in den Alpen
  • M. Kriegl
  • Biology
  • Anzeiger für Schädlingskunde
  • 2005
It has been observed that in the Alps typical birch-insects are frequently changing over toAlnus viridis as host. Expand