eastern rock nuthatch (sitta tephronota) and western rock nuthatch (s. neumayer) are two closely related and sympatric species in iran, which have been known as the classical case of character displacement since 1950. nevertheless, some questions related their niche partitioning is still unanswered. this study was conducted to determine the diet differentiation, as an important niche dimension,...

LONGHORNED BEETLES (COLEOPTERA Cerambycidae) are an important component of temperate forest ecosystems.  We trapped longhorned beetles in forests in northwest Ohio during 2008 to test the hypothesis that larger forests have greater species diversity than smaller forests.  Large forests had a significantly greater cerambycid species richness than small forests (t = 3.16. P = 0.02), and there was...

Hesperophanes pilosus Bodungen, 1908 – A new record of longhorn beetles (Coleoptera, Cerambycidae) for Iranian fauna with the first detection its host plant species

six species of rove beetles (coleoptera: staphylinidae), belonging to the genus philonthus stephens 1829, are reported for the first time from iran. they include philonthus juvenilis peyron, 1858, philonthus micans (gravenhorst, 1802), philonthus spinipes sharp, 1874, philonthus longicornis stephens 1832, philonthus viridipennis fauvel 1875, and philonthus wuesthoffi bernhauer 1939. all specime...

BACKGROUND The extraordinary morphology, reproductive and developmental biology, and behavioral ecology of twisted wing parasites (order Strepsiptera) have puzzled biologists for centuries. Even today, the phylogenetic position of these enigmatic "insects from outer space" [1] remains uncertain and contentious. Recent authors have argued for the placement of Strepsiptera within or as a close re...

We evaluated the efficacy of the systemic insecticides dinotefuran, emamectin benzoate, fipronil, and imidacloprid for preventing attacks and brood production of southern pine engraver beetles (Coleoptera: Curculionidae: Scolytinae) and wood borers (Coleoptera: Cerambycidae) on standing, stressed trees and bolt sections of loblolly pine, Pinus taeda L., in eastern Texas. Emamectin benzoate sign...

We carried out a quantitative assessment of the consumption of herbaceous plants by Opatrumsabulosum (Linnaeus, 1761) - a highly significant agricultural pest species. We researched the feeding preferences of this pest species with respect to 33 uncultivated and 22 cultivated plant species. This species of darkling beetle feeds on many uncultivated plant species, including those with hairy leav...

The orientation stimuli of adult individuals of the beetle Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) over the beach surface, were studied at two sandy beaches of the chilean coast approximately 1300 km apart, Apolillado (ca. 29 degrees S) and Playa Universitaria de Mehuín (ca. 39 degrees S). Phalerisida maculata did not orient by astronomic cues such as the sun and moon, nor by th...

Background Despite great progress in studies on Wolbachia infection in insects, the knowledge about its relations with beetle species, populations and individuals, and the effects of bacteria on these hosts, is still unsatisfactory. In this review we summarize the current state of knowledge about Wolbachia occurrence and interactions with Coleopteran hosts. Methods An intensive search of the ...

Two new species of the genus Uloma Dejean, 1821, Uloma fengyangensis sp. n. and Uloma acrodonta sp. n., are described and figured from Zhejiang Province of China. Uloma bonzica Marseul, 1876 is recorded from China for the first time. A key to the known Uloma species from Zhejiang of China and a list of Uloma species from China are provided.