The Handsome Cross Grasshopper Oedaleus decorus (Germar, 1825) (Orthoptera: Acrididae) as a Neglected Pest in the South-Eastern Part of West Siberian Plain

Abstract

Oedaleus decorus is a widely distributed acridid over the Eurasian semi-arid territories, from the Atlantic coast to the Pacific coast. In many semi-arid territories, O. decorus was and is the most important pest, but in the south-eastern part of West Siberian Plain, it was not considered a pest until the 1960s. We compared two sets of data on the acridid distribution in the region: before 1960 and from 1961 until 2021. Until the 1960s, the species occurred mainly in the southern steppes. Since the 1960s, its distribution changed significantly. Nowadays, it occupies almost all local steppes and the southern part of the forest-steppes and can be also found on the eastern side of the Ob River. These shifts may be explained by both climatic changes and changes in human activities. During upsurges the densities of O. decorus were often more than one to two adults per square meter. It is often abundant in the same habitats and in the same periods as the Italian locust (Calliptamus italicus)—one of the most important acridid pests. This means during joint outbreaks these two species can simultaneously damage almost all spectrum of plants.

New data on distribution of Montana striata (Kittary, 1849) (Orthoptera: Tettigoniidae: Platycleidini) in the eastern part of the range

“…The striated steppe bush-cricket Montana striata was and is one of the rarest orthopteran species in the temperate Asia. Despite more than 400 localities studied by several generations of orthopterists in the forest-steppes and the steppes of West Siberia and Kazakhstan from the end of the 19th century until now (see Sergeev, 1986;Popova et al, 2020Popova et al, , 2022 the species are known only from a few sites and their abundance are relatively low in all recognized populations. One may suggest its colonies are insular while the species prefers widely distributed natural and semi-natural habitats and sometimes occurs in transformed terrains as well.…”

Predictions Based on Different Climate Change Scenarios: The Habitat of Typical Locust Species Is Shrinking in Kazakhstan and Xinjiang, China

“…Outbreaks of some pests, such as locusts, have profoundly affected human life; for example, desert locusts swept through the Horn of Africa and southwest Asian countries in 2020 [ 8 , 9 ]. In addition, swarms of the Italian locust and the Moroccan locust ( Dociostaurus maroccanus (Thunberg, 1815)) damaged crops in Russia and China, respectively [ 10 ]. In the Lake Balkhash region, Asian migratory locust outbreaks occur at random intervals of two to ten years and can persist for two to ten years [ 11 ].…”

Special Issue: Selected Papers from the 1st International Electronic Conference on Entomology

“…The studies in this SI deal with various interesting aspects of research, i.e., identification of termite species in West Africa [ 1 ], characterization of the microbial symbionts of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) populations [ 2 ], the contribution of bacterial symbionts to the thermal tolerance of two aphid species Rhopalosiphum padi (L.) and Sitobion avenae (F.) (Hemiptera: Aphididae) [ 3 ], recording the nematode fauna in Greek forests [ 4 ], investigation of genetic variability in Apis mellifera L. (Hymenoptera: Apidae) from Serbia through microsatellite loci [ 5 ], comparison of damage caused to tomato plants by the biocontrol agents Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) and Dicyphus cerastii Wagner (Hemiptera: Miridae) [ 6 ], evaluation of numerous essential oil-based microemulsions as grain protectants for management of two major stored-product insects, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) and Trogoderma granarium Everts (Coleoptera: Dermestidae) [ 7 ], investigation of several aspects of the life history of the biological control agent Neoleucopis kartliana (Tanasijtshuk) (Diptera: Chamaemyiidae) in Greece [ 8 ], validation of theoretical models explaining the persistence of mtDNA variation within populations of Drosophila obscura Fallén (Diptera: Drosophilidae) [ 9 ], description of how thermal conditions, sex, and population origin may affect stress resistance in Drosophila subobscura Collin (Diptera: Drosophilidae) [ 10 ], the genetic structure of Corythucha ciliata (Say) (Hemiptera: Tingidae) based on mitochondrial DNA analysis [ 11 ], utilization of ecological/geographical models to evaluate changes in the distribution of Oedaleus decorus (Germar) (Orthoptera: Acrididae) [ 12 ], investigation of exposure to heavy metals and population origin on the diversity of microbiota and fitness in Drosophila melanogaster Meigen (Diptera: Drosophilidae) and D. subobscura [ 13 ], a database and checklist of alien insects in Greece [ 14 ], evaluation of direct and delayed mortality caused by the anthranilic diamide chlorantraniliprole to adults and larvae of T. castaneum , adults of Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae), adults of Sitophilus oryzae (L.) (Coleoptera: Curculionidae) and adults and nymphs of Acarus siro L. (Sarcoptiformes: Acaridae) [ 15 ], identification of Pseudococcus jackbeardsleyi Gimpel and Miller (Hemiptera: Pseudococcidae) and Maconellicoccus hirsutus Green (Hemiptera: Pseudococcidae) as potential vectors of cacao mild mosaic virus (CaMMV) [ 16 ], defining relationships between coccinellids and aphids on alfalfa in Spain [ 17 ], exploration of the diversity and phylogeny of Tingidae species occurring on olive trees in South Africa using morphology and mitogeno...…”