scholarly journals Bark beetle associated trematurid mites (Acari: Uropodina: Trematuridae) from Asian Russia with description of a new species

2019 ◽  
Vol 24 (9) ◽  
pp. 1592-1603 ◽  
Author(s):  
Jeno Kontschán ◽  
Gábor Szőcs ◽  
Balázs Kiss ◽  
Alexander A. Khaustov
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Beetle Species ◽  
New Associations ◽  
Polygraphus Proximus ◽  
Associated Species ◽  
A New Species ◽  
Different Parts

A new Oodinychus Berlese, 1917 species, O. scolytana sp. nov., was discovered and described from the galleries of bark beetles Polygraphus proximus Blandford from two different parts of Asian Russia. New associations are given for the trematurid mites and bark beetle species. Three bark beetle associated species from the Trichouropoda ovalis-group are moved into the genus Oodinychus as O. hirsuta (Hirschmann, 1972) comb. nov., O. rafalski (Wiśniewski & Hirschmann, 1984) comb. nov. and O. wilkinsoni (Hirschmann &Wiśniewski, 1986) comb. nov. Also, Oodinychus egypticus Abo-Shnaf, El-Bishlawy & Allam, 2018 is transferred to the genus Nenteria Oudemans, 1915.

Saproxylic community, guild and species responses to varying pheromone components of a pine bark beetle

2013 ◽  
Vol 103 (5) ◽  
pp. 497-510 ◽  
Author(s):  
Iñaki Etxebeste ◽  
José L. Lencina ◽  
Juan Pajares
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Sustainable Forest Management ◽  
Gaussian Model ◽  
Aggregation Pheromones ◽  
Delayed Response ◽  
Beetle Species ◽  
Saproxylic Beetle ◽  
By Catch ◽  
Associated Species

AbstractSome bark beetle species (Coleoptera: Scolytinae) produce aggregation pheromones that allow coordinated attack on their conifer hosts. As a new saproxylic habitat is founded, an assemblage of associated beetles kairomonally respond to bark beetle infochemicals. Ips sexdentatus is one of the major damaging insects of Pinus spp. in Southern Europe. Its response to varying ipsenol (Ie) percentages in relation to ipsdienol (Id) was studied in northwestern Spain, along with the entire saproxylic beetle assemblage captured at multiple-funnel traps. Response profile modeling was undertaken for I.sexdentatus sexes and sex-ratios, associated species and for selected trophic groups using a reference Gaussian model. In addition, the effects on the saproxylic assemblages were analyzed. I. sexdentatus response curve peaked at 22.7% Ie content, while remaining taxa that could be modeled, peaked above ca. 40% Ie. Predator guilds showed a linear relationship with Ie proportion, while competitors showed a delayed response peak. Consequently, species assemblages differed markedly between varying pheromone component mixtures. Given that the evaluated pheromonal proportions mimicked that of logs being colonized by I. sexdentatus, results suggested that the registered differential responses at different levels might provide I.sexdentatus with a temporal window that maximizes conspecific attraction while reducing interference with competitor and predatory guilds. Described responses might help improve the monitoring of the population status of target bark beetles and their associates, but also point toward the by-catch of many natural enemies, as well as rare saproxylic beetle species, interfering with the aims of sustainable forest management.

A review of histiostomatid mites associated with scolytine bark beetles (Coleoptera: Curculionidae), with a description of Histiostoma shiramba sp. n. (Acari: Histiostomatidae) from galleries of the Sakhalin-fir bark beetle Polygraphus proximus 

2018 ◽  
Vol 23 (12) ◽  
pp. 2373
Author(s):  
Pavel B. Klimov ◽  
A.A. Khaustov
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Large Scale ◽  
Developmental Stages ◽  
Fungal Spores ◽  
Mite Species ◽  
Species Group ◽  
Invasive Pest ◽  
Polygraphus Proximus

Associations of scolytine bark beetles (Coleoptera: Curculionidae: Scolytinae) and histiostomatid mites (Acari: Histiostomatidae) are reviewed. Histiostomatids are associated with a total of 62 described species of bark beetles in 31 countries of the world, except for South America and Antarctica (262 non-redundant records). Non-accidental records include 21 mite species in the genus Histiostoma and 5 species in the Bonomoia/Probonomoia generic complex. The biological role of histiostomatids associated with bark beetles is largely unknown and needs further investigation. Available observations suggest that histiostomatids living in bark beetle galleries may feed on different fungi, including those pathogenic to the tree host and/or may serve as food supplement for developing bark beetle larvae (e.g., the fungal genus Ophiostoma). However, based on their mouthpart morphology, instead of feeding on fungi directly, histiostomatids may reduce fungal population sizes by releasing fungicides produced by their opisthonotal glands. Both feeding and phoretic stages of the mites commonly vector considerable numbers of fungal spores or conidia, including those of phloem-infesting, blue stain fungi (e.g., Ophiostoma, Ceratocystis, and Alternaria). Here we describe all developmental stages of a new species of the genus Histiostoma, belonging to the piceae-species group that includes many mite species associated with bark beetles. The new species, Histiostoma shiramba sp. n., was found in the galleries of the Sakhalin-fir bark beetle, Polygraphus proximus, an invasive pest that is quickly spreading outside of its native range in the Eastern Palaearctic, causing large-scale destruction of fir forests. We emend the following names (nom. emend.) to agree in gender with the generic name Histiostoma (gender neuter): Histiostoma capillatum, H. conjunctum, H. hungaricum, H. indetonsum, H. irinum, H. longisetum, H. margaritatum, H. medium, H. ovale, H. pannonicum, H. serratum, H. sordidum, H. spinosum, H. sylvestre, H. varium, H. virginianum. The name Histiostoma scheucheri is emended to Histiostoma scheucherae.

A new species and a new record of raphignathoid mites (Acari: Raphignathoidea: Camerobiidae, Stigmaeidae) occurring in the galleries of bark beetles (Coleoptera: Curculionidae: Scolytinae) from Russia

2017 ◽  
Vol 22 (9) ◽  
pp. 1385 ◽  
Author(s):  
Alexander Khaustov ◽  
Vladimir Abramov
Keyword(s):  
New Species ◽  
Bark Beetles ◽  
New Record ◽  
Western Siberia ◽  
European Russia ◽  
Female Larva ◽  
Polygraphus Proximus ◽  
First Time ◽  
A New Species

Female, larva and protonymph of a new species, Neophyllobius abiegnus sp. nov., collected in the galleries of Pityophthorus micrographus (Linnaeus) (Coleoptera: Curculionidae: Scolytinae) in European Russia are described. Protonymph of Neophyllobius sp. is recorded from Crimea in the galleries of Pityogenes bistridentatus (Eichhoff). Stigmaeus mitrofanovi Khaustov, 2014 is recorded from Western Siberia in the galleries of bark beetles Polygraphus proximus Blandford and Polygraphus subopacus Thomson for the first time from Asia.

scholarly journals A new species of Tarsonemus (Acari: Tarsonemidae) associated with the bark beetle, Polygraphus proximus (Coleoptera: Curculionidae: Scolytinae) from the Far East of Russia

Acarologia ◽  
2017 ◽  
Vol 57 (3) ◽  
pp. 673-687
Author(s):  
Alexander A. Khaustov
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
Far East ◽  
Species Group ◽  
Far East Of Russia ◽  
The Far East ◽  
Polygraphus Proximus ◽  
Males And Females ◽  
A New Species

Larvae, males and females of a new species from the minimax species-group, Tarsonemus striatus n. sp. (Acari: Tarsonemidae) are described from the galleries of, and phoretic on, the bark beetle Polygraphus proximus Blandford, 1894 (Coleoptera: Curculionidae: Scolytinae) in the Far East of Russia.

A new genus and two new species of Tarsonemidae (Acari: Heterostigmata) associated with bark beetles (Coleoptera: Curculionidae: Scolytinae) from Peru

Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV
Keyword(s):  
New Species ◽  
Bark Beetles ◽  
New Genus ◽  
New Genus And Species ◽  
Key To Species ◽  
Two New Species ◽  
A New Species

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 

Laemophloeus souzalimai, a new species of lined flat bark beetle (Coleoptera, Cucujoidea, Laemophloeidae) from Southeast Brazil

Zootaxa ◽  
2021 ◽  
Vol 5072 (3) ◽  
pp. 278-284
Author(s):  
MATHEUS BENTO
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
New World ◽  
New Records ◽  
Sensu Stricto ◽  
World Species ◽  
Paulo State ◽  
Southeast Brazil ◽  
Male Head ◽  
A New Species

Distinctive, remarkable specimens from Bauru, São Paulo state, Brazil are recognized as a new species of the genus Laemophloeus Dejean (sensu stricto), which is described and illustrated in this paper. Laemophloeus souzalimai sp. nov. is most similar to L. germaini Grouvelle and can be readily distinguished from all New World species of the genus by the dorsal color testaceous, without elytral maculae, antennal club of 6 antennomeres, genal processes anteriorly projected, male head with somewhat pedunculated eyes, and frons with a broad, V-shaped impressed line. Additionally, the preexisting key to Laemophloeus species with antennal club of 6 or more antennomeres is modified to include the new species, and new records for five Brazilian species of the genus are provided.  

ORIBATID MITES (ACARI: ORIBATIDA) PHORETIC ON PASSALID BEETLES (COLEOPTERA: PASSALIDAE), WITH DESCRIPTION OF A NEW SPECIES FROM INDONESIA

2019 ◽  
Vol 22 ◽  
pp. 90-96
Author(s):  
Sergey G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
Oribatid Mites ◽  
Beetle Species ◽  
A New Species

A new species of oribatid mites (Oribatida) phoretic on the beetle, Macrolinus batesi (Coleoptera, Passalidae) is described from Sumatra, Indonesia. Graptoppia (Stenoppia) royi sp. nov. (Oppiidae) differs from G. (S.) italica by the smaller body size, the presence of thin transcostula and the absence of costulae. Data on oribatids phoretic on passalid beetles are summarized; nine identified oribatid species (from 19 beetle species) are listed.

scholarly journals Cryphalus eriobotryae sp. nov. (Coleoptera: Curculionidae: Scolytinae), a New Insect Pest of Loquat Eriobotrya japonica in China

Insects ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 180 ◽  
Author(s):  
Sizhu Zheng ◽  
Andrew J. Johnson ◽  
You Li ◽  
Chunrong Chu ◽  
Jiri Hulcr
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
Insect Pest ◽  
Fruit Production ◽  
The Other ◽  
Eriobotrya Japonica ◽  
Beetle Species ◽  
Ornamental Trees

A previously unknown bark beetle species, Cryphalus eriobotryae sp. nov. Johnson, 2019 has emerged as a lethal pest of loquat (Eriobotrya japonica) in China. The description of new species has been provided. The new species is distinguished from the other Cryphalus by the weakly aciculate frons, by the antennae, with unevenly spaced procurved sutures, by the short pronotal disc, with hair-like setae, and by the widely spaced mesocoxae. The survey of plantation records from around Suzhou suggests that this beetle was introduced from another area not long before 2017. In the surveyed loquat plantation in 2018, 20–90% of trees showed signs of infestation, and 5% were killed in 2018, resulting in the death of over 1000 trees. Outbreaks of the apparently loquat-specific Cryphalus eriobotryae can be diagnosed by hundreds of cankers on the trunk, and wilted foliage. This pest is of concern as a loquat plantation pest and as a pest of fruit production and ornamental trees within Suzhou, and globally.

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