Planiculus angulatus, a new species of xyleborine ambrosia beetle from Thailand (Coleoptera, Curculionidae, Scolytinae, Xyleborini).

A new species, Planiculus angulatus sp. nov., is described and P.

A taxonomic review of Sueus Murayama, 1951 ambrosia beetles (Coleoptera: Curculionidae: Scolytinae: Hyorrhynchini) aided by molecular phylogenetic analyses.

Four Sueus Murayama, 1951 species occur in Southeast Asia and Oceania. They all likely have a female-biased haplodiploid inbreeding mating system and feed on symbiotic ambrosia fungi. These life history traits increase the potential of adventive events.

Aposematic color polymorphism is a poor indicator of species boundaries in North American Paranthrene (Lepidoptera: Sesiidae) as evidenced by a multi-gene phylogeny.

Color polymorphism among animal species can influence speciation. Factors such as natural and sexual selection, genetic drift and gene flow contribute to the maintenance of color polymorphism within the species or spur speciation. The evolutionary and ecological mechanisms for color polymorphism are taxon specific and only a few species have been studied.

Two new species of Motschulsky, 1863 ambrosia beetle from Taiwan and Thailand (Coleoptera, Curculionidae, Scolytinae, Xyleborini).

Two xyleborine ambrosia beetles, . and are described from Taiwan and Thailand, respectively, based on DNA sequences (COI and CAD) and morphological characteristics. A key to the species of Southeast Asia is provided.

Incomplete barriers to heterospecific mating among Somatochlora species (Odonata: Corduliidae) as revealed in multi-gene phylogenies.

Mating between species occurs within many insect orders. The result of heterospecific mating depends upon the effectiveness of pre- and post-reproductive barriers. Incomplete reproductive barriers lead to introgression of DNA into one species or both.

Fusarium kuroshium is the primary fungal symbiont of an ambrosia beetle, Euwallacea fornicatus, and can kill mango tree in Japan.

This study identifies fungi associated with Euwallacea fornicatus and determines whether these fungal species play the role of primary symbiont. E. fornicatus adults that emerged from the branches of infested trees in Okinawa main island, Japan, were collected and used to isolate fungi.

 , a new species of xyleborine ambrosia beetle from Thailand (Coleoptera, Curculionidae, Scolytinae, Xyleborini).

A new species, , is described here. A list of species found in Thailand with distributions and an updated key to are also provided.

New species and new records of Xyleborini from the Oriental region, Japan and Papua New Guinea (Coleoptera: Curculionidae: Scolytinae).

Eighteen xyleborine ambrosia beetles are described and illustrated: Anisandrus proscissus Smith, Beaver, Pham & Cognato sp. nov. (Vietnam), Anisandrus simplex Smith, Beaver & Cognato sp.

One hundred eighteen taxonomic changes among Xyleborine ambrosia beetles (Coleoptera: Curculionidae: Scolytinae).

An ongoing study of the ambrosia beetle tribe Xyleborini has resulted in numerous taxonomic changes mostly representing new generic/species combinations which remove species from the once all-encompassing Xyleborus Eichhoff, 1864 to other genera based on revised taxonomic concepts. These changes are here listed. Terminalinus Hopkins, 1915 is removed from synonymy with Cyclorhipidion Hagedorn, 1912 and reinstated as a valid genus.

Multi-gene phylogeny of North American clear-winged moths (Lepidoptera: Sesiidae): a foundation for future evolutionary study of a speciose mimicry complex.

Sesiids are a diverse group of predominantly diurnal moths, many of which are Batesian mimics of Hymenoptera. However, their diversity and relationships are poorly understood. A multi-gene phylogenetic analysis of 48 North American sesiid species confirmed the traditional taxonomic tribal ranks, demonstrated the paraphyly of Carmenta and Synanthedon with respect to several other genera and ultimately provided minimal phylogenetic resolution within and between North American and European groups.

Ecuadorian beetles harbor and fungi previously associated with ambrosia beetles.

Ambrosia beetles from the scolytine tribe Xyleborini (Curculionidae) are important to the decomposition of woody plant material on every continent except Antarctica. These insects farm fungi on the walls of tunnels they build inside recently dead trees and rely on the fungi for nutrition during all stages of their lives. Such ambrosia fungi rely on the beetles to provide appropriate substrates and environmental conditions for growth.

Species-rich bark and ambrosia beetle fauna (Coleoptera, Curculionidae, Scolytinae) of the Ecuadorian Amazonian Forest Canopy.

Canopy fogging was used to sample the diversity of bark and ambrosia beetles (Coleoptera, Curculionidae, Scolytinae) at two western Amazonian rainforest sites in Ecuador. Sampling was conducted by Dr Terry Erwin and assistants from 1994-2006 and yielded 1158 samples containing 2500 scolytine specimens representing more than 400 morphospecies. Here, we analyze a subset of these data representing two ecological groups: true bark beetles (52 morphospecies) and ambrosia beetles (69 morphospecies).

A revision of the Neotropical genus Hopkins (Coleoptera, Curculionidae, Scolytinae, Xyleborini).

The Neotropical xyleborine ambrosia beetle genus Hopkins is reviewed. The following 40 species are described: (Peru), (Ecuador), (French Guiana), (Ecuador), (Ecuador), (Ecuador), (Ecuador), (Brazil), (Suriname), (Peru), (Ecuador), (Ecuador), (Ecuador), (Ecuador), (Brazil), (Peru), (Peru), (Ecuador), (Ecuador), (Ecuador, Suriname), (Peru), (Ecuador), (Ecuador), (Peru), (Ecuador), (French Guiana), (Suriname), (Ecuador), (Ecuador), (Guyana), (Brazil), (Ecuador), (Ecuador), (Peru), (Ecuador), (Brazil), (Peru), (Panama), (Brazil), and (Ecuador). Seventeen new combinations are given: (Petrov, 2020) , (Bright & Torres, 2006) , Bright & Torres, 2006 , (Sampson, 1921) , (Wood, 1974) , (Schedl, 1934) , (Wood, 1975) , (Petrov, 2020) , (Wood, 1974) , (Schedl, 1976) , (Wood, 2007) , (Wood, 1974) , (Schedl, 1936) , (Bright & Torres, 2006) , (Eggers, 1932) , (Schedl, 1948) , (Wood, 1975) , and (Blandford, 1898) Two new synonyms are proposed: Hopkins, 1915 (= Hopkins, 1915 ) and (Blandford, 1898) (= Hopkins, 1915 ).

Patterns of host tree use within a lineage of saproxlic snout-less weevils (Coleoptera: Curculionidae: Scolytinae: Scolytini).

The influence of plants in the diversification of herbivorous insects, specifically those that utilize moribund and dead hosts, is little explored. Host shifts are expected because the effectiveness of toxic secondary chemicals is lessened by decay of dead plants. Feeding on dead plants also releases herbivorous insect lineages from diversifying within a particular plant lineage.

A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China.

The Southeast Asian xyleborine ambrosia beetle fauna is reviewed for the first time. Thirty-four genera and 315 species are reviewed, illustrated, and keyed to genera and species. Sixty-three new species are described: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , .

Two new genera of Oriental xyleborine ambrosia beetles (Coleoptera, Curculionidae: Scolytinae).

As part of an ongoing revision of the Southeast Asian fauna two distinct species groups were identified and hypothesized as new genera. These species groups were monophyletic as evidenced by a Bayesian analysis of DNA sequences from four genes for 181 xyleborine taxa augmented by 18 species newly included in this phylogenetic analysis. The species groups and newly discovered species demonstrated unique combinations of diagnostic characters and levels of DNA sequence difference commensurable to other xyleborine taxa.

Effects of Climate and Host Age on Flight Activity, Infestation Percentage, and Intensity by Coptoborus ochromactonus (Coleoptera: Curculionidae: Scolytinae) in Commercial Balsa Plantations of Ecuador.

Coptoborus ochromactonus (Smith and Cognato) is one of the most common and important pests of balsa, Ochroma pyramidale (Cav. Ex Lam. Urb.

Reassessment of the Species in the (Coleoptera: Curculionidae: Scolytinae) Complex after the Rediscovery of the "Lost" Type Specimen.

Ambrosia beetles of the (Eichhoff, 1868) species complex are emerging tree pests, responsible for significant damage to orchards and ecosystems around the world. The species complex comprises seven described species, all of which are nearly identical. Given that the morphology-defined species boundaries have been ambiguous, historically, there has been much disagreement on species validity, which was compounded by the presumed loss of the type series of .

A highly resolved food web for insect seed predators in a species-rich tropical forest.

The top-down and indirect effects of insects on plant communities depend on patterns of host use, which are often poorly documented, particularly in species-rich tropical forests. At Barro Colorado Island, Panama, we compiled the first food web quantifying trophic interactions between the majority of co-occurring woody plant species and their internally feeding insect seed predators. Our study is based on more than 200 000 fruits representing 478 plant species, associated with 369 insect species.

Bark and Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Diversity in Natural and Plantation Forests in Ecuador.

The Scolytinae is highly diversified in tropical forests, but richness and abundance patterns within most Ecuadorian forest habitat types are not yet characterized. In this study, we assessed patterns of variation in Scolytinae richness, abundance, and species composition in a primary and a secondary natural forest, and a commercial balsa plantation in Ecuador. We conducted a 1-yr survey of Scolytinae communities with baited traps and measured associated environmental variables.

Genetic Variability Among Xyleborus glabratus Populations Native to Southeast Asia (Coleoptera: Curculionidae: Scolytinae: Xyleborini) and the Description of Two Related Species.

The redbay ambrosia beetle, Xyleborus glabratus Eichhoff, is native to Southeast Asia, where it specializes on Lauraceae trees. It forms a symbiosis with the ambrosia fungus Raffaelea lauricola T.C.

Life Cycle and Development of Coptoborus ochromactonus (Coleoptera: Curculionidae: Scolytinae), a pest of balsa.

Coptoborus ochromactonus Smith and Cognato is a recently described xyleborine ambrosia beetle pest associated with balsa, Ochroma pyramidale (Cav. Ex Lam.) Urb.

New synonymy, new combinations and other taxonomic changes in Japanese xyleborine ambrosia beetles (Coleoptera: Curculionidae: Scolytinae).

The following 13 new combinations are given: Ambrosiophilus osumiensis (Murayama, 1934), Ancipitis machili (Niisima, 1910), Cyclorhipidion bispinum (Nobuchi, 1981), Cyclorhipidion japonicum (Nobuchi, 1981), Cyclorhipidion laetum (Niisima, 1909), Cyclorhipidion misatoense (Nobuchi, 1981), Cyclorhipidion miyazakiense (Murayama, 1936), Cyclorhipidion okinosenense (Murayama, 1961), Cyclorhipidion takinoyense (Murayama, 1953), Debus defensus (Blandford, 1894), Immanus permarginatus (Schedl, 1933), Microperus calamoides (Murayama, 1934), Microperus quercicola (Eggers, 1926), all originally described in Xyleborus Eichhoff, 1864. The following 24 new synonyms are proposed: Ambrosiophilus atratus (Eichhoff, 1876) (=Xyleborus collis Niisima, 1910 syn. n.

Microclimatic Conditions for Dung Beetle (Coleoptera: Scarabaeidae) Occurrence: Land Use System as a Determining Factor.

Tropical forests account for 7% of the earth's surface harboring more than 50% of the biodiversity on Earth. Unfortunately, deforestation continues at high rates with negative consequences for biodiversity. With the decrease of natural habitats, biodiversity maintenance in areas degraded by human activity is a challenge.

Acanthotomicus suncei, a new sweetgum tree pest in China (Coleoptera: Curculionidae: Scolytinae: Ipini).

A new species of bark beetle, Acanthotomicus suncei Cognato, that kills sweetgum (Liquidambar spp.) is described. The new species is distinguished from the other Acanthotomicus species by the placement of elytral declivital spines on interstriae 2, 4, 6, 8 and the connection of spines 1 and 2 by a tumescence.