Non-native bark and ambrosia beetles represent a threat to forests worldwide. Their invasion patterns are, however, still unclear. Here we investigated first, if the spread of non-native bark and ambrosia beetles is a gradual or a discontinuous process; second, which are the main correlates of their community structure; third, whether those correlates correspond to those of native species. We u...

A series of tests were conducted to determine if the sensitivity and efficiency of an established rabbit immunoglobulin (IgG)-specific enzyme-linked immunosorbent assay (ELISA) could be improved for detecting a protein mark on insects. Five variations of ELISA were examined for their ability to detect a rabbit IgG mark on the convergent lady beetle, Hippodamia convergens Guérin-Méneville. The c...

BACKGROUND AND AIMS A deviation from the classical beetle pollination syndrome of dull-coloured flowers with an unpleasant scent is found in the Greater Cape Floral Region of South Africa. Here, monkey beetles (Scarabaeidae) visit brightly coloured, odourless flowers with conspicuous dark spots and centres (beetle marks). The role of flower colour and markings in attracting monkey beetles is st...

The Ophiostomatales is an Ascomycete order of fungi that accommodates several tree pathogens and many species that degrade wood. These fungi are commonly vectored by Scolytine bark and ambrosia beetles. In recent years it has also been shown that hyperphoretic mites on these beetles can vector some Ophiostomatales. Little is known regarding the Ophiostomatales in China and we have consequently ...

Carabid beetles (Coleoptera, Carabidae) are one of the most studied soil groups in relation to heavy metal (HM) accumulation and use for bioindication of environmental pollution. Accumulation of Zn and Cu in carabid beetles was species-, sex- and trophic group-specific. No differences were found in HM contents between omnivorous and carnivorous species. The use of carabid beetles as indicators ...

The attachment ability of ladybird beetles Coccinella septempunctata was systematically investigated on eight types of surface, each with different chemical and topographical properties. The results of traction force tests clearly demonstrated that chemical surface properties, such as static/dynamic de-wettability of water and oil caused by specific chemical compositions, had no significant eff...

the rice fields consist of diverse fauna of arthropoda because of both subterranean and aquatic ecosystems. in this research, the fauna of predator beetles including carabidae, coccinellidae, staphylinidae, malachiidae, and their population fluctuation were studied in mazandaran province during 2002-2006. a number of 13 carabid species, one staphylinid species, six coccinellid species, and two ...

purpose: to report the development of cataract after corneal damage by dungle beetle prongs. case report: a 28 year-old man, resident of the village chah setareh, sabzevar, presented complaining of trauma to the right eye with the dangle beetle while motorcycling. slit lamp examination revealed six corneal perforations, hyphema (50% of anterior chamber) percent, iris sphincter rupture, and rupt...

1. Given sexual size dimorphism, differential mortality owing to body size can lead to sex-biased mortality, proximately biasing sex ratios. This mechanism may apply to mountain pine beetles, Dendroctonus ponderosae Hopkins, which typically have female-biased adult populations (2 : 1) with females larger than males. Smaller males could be more susceptible to stresses than larger females as deve...

An autoinoculative device was used to test the ability of sap beetles (Coleoptera: Nitidulidae) to carry a specific strain of Beauveria bassiana (Balsamo) Vuillemin to overwintering sites in a multiyear field study. The device was baited with the pheromone and coattractants for the dusky sap beetle (Carpophilus lugubris Murray) and placed in the field in the fall of each year. The introduced st...