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.

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.

Deronectes kabilcevz sp. n. and D. propedoriae sp. n. from south-eastern Anatolia (Turkey) (Coleoptera, Dytiscidae, Hydroporinae)

Zootaxa ◽  
2019 ◽  
Vol 4691 (5) ◽  
pp. 589-600
Author(s):  
MEDENÝ AYKUT ◽  
ÝBRAHÝM HALÝL YILDIRIM ◽  
SADREDDÝN TUSUN ◽  
HANS FERY
Keyword(s):  
New Species ◽  
Group Analysis ◽  
The Other ◽  
Eastern Anatolia ◽  
Beetle Species ◽  
South Eastern ◽  
Female Holotype ◽  
Molecular Studies ◽  
Different Shapes ◽  
Diving Beetle

Two new diving beetle species of the subtribe Deronectina are described from south-eastern Anatolia. Deronectes kabilcevz sp. n. belongs to the D. longipes-subgroup of the D. parvicollis-group. It is externally similar to the other members of this subgroup, but can be separated by the different shape of the median lobe of aedeagus. Deronectes propedoriae sp. n. belongs to the D. doriae-group. Analysis of molecular studies suggests that the new species and D. doriae Sharp, 1882 are closely related but undoubtedly different with an uncorrected p distance of 7% in the cytochrome oxydase gene. Also external characters allow an easy separation although only the female holotype of the new species is known—the pronotum and the last abdominal ventrite of each have very different shapes. The habitus, the genitalia and other features of the species are illustrated. The keys to species of the respective groups of genus Deronectes are updated. Including the results of this study, 61 species of Deronectes are now known. 

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

Zootaxa ◽  
2018 ◽  
Vol 4471 (3) ◽  
pp. 595 ◽  
Author(s):  
LEI GAO ◽  
ANTHONY I. COGNATO
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
The Other ◽  
Potential Damage ◽  
A New Species

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. Notes on the bark beetle’s potential damage to sweetgum are given. 

New species of the genus Klinckowstroemia Baker &Wharton from Mexico (Acari: Mesostigmata: Trigynaspida: Klinckowstroemiidae)

Zootaxa ◽  
2009 ◽  
Vol 2248 (1) ◽  
pp. 1-46
Author(s):  
GABRIEL A. VILLEGAS-GUZMAN ◽  
TILA M. PÉREZ ◽  
PEDRO REYES-CASTILLO
Keyword(s):  
New Species ◽  
Mite Species ◽  
The Other ◽  
Single Individual ◽  
Beetle Species ◽  
Southern Mexico ◽  
Individual Specimen ◽  
New Hosts ◽  
Mite Genus ◽  
Eleven Species

Ten new species of the genus Klinckowstroemia are described from passalid beetles (Coleoptera: Passalidae) collected in eastern and southern Mexico. The new species are Klinckowstroemia bifurcata sp. nov., K. hunteri sp. nov., K. valdezi sp. nov., K. montanoi sp. nov., K. brevimarginata sp. nov., K. rectimarginata sp. nov., K. franckei sp. nov., K. santibanezi sp. nov., K. ballesterosi sp. nov. and K. cristinae sp. nov. In some cases two species of Klinckowstroemia occurred on a single individual beetle and in one case an individual specimen of Odontotaenius zodiacus carried three species of mites: K. hunteri, K. bifurcata and K. valdezi. Eleven species of passalid beetles are new hosts for Klinckowstroemia. The beetle species associated with the most species of mites was Odontotaenius zodiacus, with six species; the other beetle species carried one or two mite species each. Mites were found in three areas of the passalid’s body: the coxae, the mesoepisternum and the humeri. Some species of Klinckowstroemia were found on more than one host species: K. valdezi and K. santibanezi were associated with four and three species of passalids respectively. This work increases the number of described species of the genus Klinckowstroemia from 14 to 24 species. The number of species of passalid beetles associated with this mite genus increased from 22 to 33.

Use of Ornamental Trees in Dating of Abandoned Cemeteries on the Example of Thuja Occidentalis and Thuja Orientalis

2012 ◽  
Vol 1 (1) ◽  
pp. 45-50
Author(s):  
Magdalena Opała ◽  
Leszek Majgier
Keyword(s):  
Climatic Conditions ◽  
The Other ◽  
Lake District ◽  
Thuja Occidentalis ◽  
North Eastern ◽  
The 1960S ◽  
Thuja Orientalis ◽  
Ornamental Trees ◽  
Common Tree ◽  
Local Habitat

Abstract Due to the lack of maintenance, abandoned cemeteries are often incorporated into the landscape. In many cases the information about the age of the cemetery is unavailable. To find out the approximate time of the formation of the cemetery the information recorded in the annual tree and shrub rings can be used. One of the most common tree species, planted for ornamental and symbolic purposes on the cemeteries, are Thuja orientalis and Thuja occidentalis. Alien to the Polish flora, these species adapted well to the local habitat and climatic conditions. The paper presents an attempt to apply dendrochronological dating to determine the age of the abandoned cemeteries in the region of the Great Masurian Lakes, part of the Masurian Lake District (north-eastern Poland). The study included five abandoned cemeteries. In total, 15 cores were taken from the trees. After applying the standard dendrochronological method, local chronologies for the studied species were established. The research indicated that the oldest found specimens - over 70 yrs old - are Thuja occidentalis individuals growing at the Słabowo cemetery. At the other sites the specimens of both Thuja species date back to the 1960s and early 1970s. Compared to the historical information regarding the age and origin of the studied objects, thujas growing there are much younger than the age of the cemeteries foundation. The presented method proved to be very helpful in understanding the time of Thuja occidentalis and Thuja orientalis introduction at the investigated cemeteries.

Problems of species and the features of geographical distribution in colonial volvocine algae (Chlorophyta)

2020 ◽  
Vol 54 (2) ◽  
pp. 299-311
Author(s):  
A. G. Desnitskiy
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
World Literature ◽  
The Other ◽  
Disjunct Distribution ◽  
Published Data ◽  
Species Problem ◽  
Comprehensive Review ◽  
Volvocine Algae ◽  
Cryptic Taxa

More than ten new species of colonial volvocine algae were described in world literature during recent years. In present review, the published data on taxonomy, geographical distribution and the species problem in this group of algae, mainly from the genera Gonium, Pandorina, Eudorina, and Volvox, are critically discussed. There are both cosmopolitan volvocalean species and species with local or disjunct distribution. On the other hand, the description of new cryptic taxa in some genera of the colonial family Volvocaceae, such as Pandorina and Volvox, complicates the preparation of a comprehensive review on their geography.

scholarly journals Discovery of the Smallest Lace Bug from Mid-Cretaceous of Northern Myanmar Supports the Hypothesis of a Miniaturization Phenomenon of Insects in Kachin Amber (Hemiptera: Heteroptera: Tingidae)

Taxonomy ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 60-68
Author(s):  
Jun Souma ◽  
Shûhei Yamamoto ◽  
Yui Takahashi
Keyword(s):  
New Species ◽  
New Genus ◽  
The Other ◽  
Diagnostic Characters ◽  
Lace Bug ◽  
New Finding ◽  
A New Species

A total of 14 species in seven tingid genera have been described from the mid-Cretaceous Burmese (Kachin) amber from northern Myanmar, with very distinct paleofauna. Here, a new species of a new genus, Burmavianaida anomalocapitata gen. et sp. nov., is described from Kachin amber. This new species can be readily distinguished from the other described tingid taxa by the apparently smaller body and the structures of the pronotum and hemelytron. Burmavianaida gen. nov. shares the diagnostic characters with two clades composed of three extant subfamilies (Cantacaderinae + Tinginae) and Vianaidinae and may represent an extinct clade distinct from them. To the best of our knowledge, B. anomalocapitata sp. nov. is the smallest species of Tingidae among over 2600 described species. Our new finding supports the hypothesis of the miniaturization phenomenon of insects in Kachin amber, as suggested by previous studies.

scholarly journals Facultative and obligate diapause phenotypes in populations of the European spruce bark beetle Ips typographus

2021 ◽  
Author(s):  
Martin Schebeck ◽  
Nina Dobart ◽  
Gregory J. Ragland ◽  
Axel Schopf ◽  
Christian Stauffer
Keyword(s):  
Bark Beetle ◽  
Ovarian Development ◽  
Insect Pest ◽  
Gonad Development ◽  
Ips Typographus ◽  
Life Cycles ◽  
Species Variation ◽  
Northern European ◽  
Spruce Bark ◽  
Egg Number

AbstractThe bark beetle Ips typographus is the most destructive insect pest in Norway spruce-dominated forests. Its potential to establish multiple generations per year (multivoltinism) is one major trait that makes this beetle a severe pest. Ips typographus enters diapause to adjust its life cycle to seasonally changing environments. Diapause is characterized by developmental and reproductive arrest; it prolongs generation time and thus affects voltinism. In I. typographus a facultative, photoperiod-regulated diapause in the adult stage has been described. In addition, the presence of an obligate, photoperiod-independent, diapause has been hypothesized. The diapause phenotype has important implications for I. typographus voltinism, as populations with obligate diapausing individuals would be univoltine. To test for the presence of different I. typographus diapause phenotypes, we exposed Central and Northern European individuals to a set of photoperiodic treatments. We used two ovarian traits (egg number and vitellarium size) that are associated with gonad development, to infer reproductive arrest and thus diapause. We found a distinct effect of photoperiod on ovarian development, with variable responses in Central and Northern European beetles. We observed obligate diapausing (independent of photoperiod) individuals in Northern Europe, and both facultative (photoperiod-regulated) as well as obligate diapausing individuals in Central Europe. Our results show within-species variation for diapause induction, an adaptation to match life cycles with seasonally fluctuating environmental conditions. As the diapause phenotype affects the potential number of generations per season, our data are the basis for assessing the risk of outbreaks of this destructive bark beetle.

scholarly journals Camelina neglecta (Brassicaceae, Camelineae), a new diploid species from Europe

PhytoKeys ◽  
2019 ◽  
Vol 115 ◽  
pp. 51-57 ◽  
Author(s):  
Jordan R. Brock ◽  
Terezie Mandáková ◽  
Martin A. Lysak ◽  
Ihsan A. Al-Shehbaz
Keyword(s):  
New Species ◽  
Diploid Species ◽  
The Other

Camelinaneglecta is described as a new diploid species and its relationship to the other diploids of the genus and to the somewhat superficially similar tetraploid C.rumelica and hexaploid C.microcarpa, are discussed. SEM of seed and stem trichomes of the new species are presented.

The Leptobrachium (Anura: Megophryidae) of the Langbian Plateau, southern Vietnam, with description of a new species

Zootaxa ◽  
2011 ◽  
Vol 2804 (1) ◽  
pp. 25 ◽  
Author(s):  
BRYAN L. STUART ◽  
JODI J. L. ROWLEY ◽  
DAO THI ANH TRAN ◽  
DUONG THI THUY LE ◽  
HUY DUC HOANG
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Small Body ◽  
Original Description ◽  
The Other ◽  
Sexually Active ◽  
Small Body Size ◽  
Upper Lip ◽  
Southern Vietnam ◽  
A New Species

We sampled two forms of Leptobrachium in syntopy at the type locality of L. pullum at upper elevations on the Langbian Plateau, southern Vietnam. The two forms differed in morphology (primarily in coloration), mitochondrial DNA, and male advertisement calls. One form closely agrees with the type series of L. pullum (but not to its original description due to error), and the other is described as new. Leptobrachium leucops sp. nov. is distinguished from its congeners by having small body size (males with SVL 38.8–45.2), the upper one-third to one-half of iris white, a blue scleral arc, a dark venter, and sexually active males without spines on the upper lip. Leptobrachium pullum and L. mouhoti, a recently described species from low-elevation slopes of the Langbian Plateau in eastern Cambodia, are morphologically divergent but genetically similar, warranting further investigation into geographic variation in the red-eyed Leptobrachium of southern Indochina.

Sign in / Sign up

Export Citation Format

Share Document