Description of sexuales of Sipha (Sipha) littoralis (Walker, 1848) (Aphididae: Chaitophorinae) with remarks on its distribution and host plants

Oviparous female and male of Sipha (Sipha) littoralis (Walker, 1848) (Aphididae, Chaitophorinae: Siphini) are described and illustrated in detail. Notes on the distribution as well as a list of host plants is given

A monograph of Siphini Mordvilko, 1928 (Hemiptera, Aphidoidea: Chaitophorinae)

The monograph presents the tribe Siphini Mordvilko, 1928 on a worldwide scale. 5 genera, 24 species and 1 subspecies are discussed in detail. 69 morphs (apterous viviparous female, alate viviparous female, oviparous female, male) are redescribed or described and figured in detail. The keys to all known species and morphs are provided. A new synonym is proposed: Sipha (Rungsia) aegilopis Bozhko, 1961 = Sipha (Rungsia) elegans Del Guercio, 1905. The lectotype for Sipha (R.) elegans is designated. New country records for most species are presented as well as new bionomical data for 6 species (Atheroides serrulatus Haliday, 1839; Chaetosiphella stipae Hille Ris Lambers, 1947; Laingia psammae Theobald, 1922; Sipha (Rungsia) arenarii Mordvilko, 1921; S. (R.) elegans and S. (R.) maydis Passerini, 1860). During the field study the sexuales of Ch. stipae were collected and have been described for the first time. There is also provided a host index compiled from the material studied and the literature cited. The structure of reproductive system of adult males of A. serrulatus, Ch. stipae, L. psammae, S. (R.) arenarii, S. (R.) elegans and S. (R.) maydis has been studied in the light and transmission electron microscopy, as well as the morphological characters of A. serrulatus, Caricosipha paniculatae Börner, 1939, Ch. stipae and S. (R.) maydis that have been studied using SEM techniques. All available data concerning chorology, ecology and bionomy of the species belonging to this tribe is summarized in the study, as well as the relationships within the Siphini and the genesis of this group of aphids is proposed

The first detection of the alien species: green-peach aphid Myzus (Nectarosiphon) persicae (Insecta, Hemiptera, Aphididae) in the Svalbard archipelago

Although the high Arctic archipelago Svalbard is among the best-studied Arctic regions in terms of biodiversity, its aphid fauna is extremely limited. Two endemic species have been described to date, and no species of a foreign origin has been registered. Our observation is the first record of the non-native and potentially invasive green-peach aphid species Myzus (Nectarosiphon) persicae (Insecta, Hemiptera, Aphididae), which was collected on the largest island of the archipelago—Spitsbergen. The green-peach aphid was found on three different ornamental plants: Viola tricolor (Violaceae), Dianthus caryophyllus (Pink Kisses) (Caryophyllaceae) and Petunia × hybrida (surfinia) (Solanaceae). The plants were displayed in front of one of the shops in the main street of Longyearbyen, the largest populated settlement of Svalbard. The infected plants came from the only supermarket on the archipelago, which had brought them from the mainland of Norway. Although the aphids (winged and wingless viviparous females and immature ones) were clearly visible on all of the plants (the distinct colonies from few to numerous individuals), the owners were not aware that the plants were infected. Similarly, the supermarket staff who are responsible for the live green plants did not register the presence of aphids on the imported plants. In this context, our results also suggest that a stricter approach to regional biosecurity needs to be considered in order to avoid the risks of further unintentional introductions

Hop-on, hop-off: the first record of the alien species crescent-marked lily aphid (Neomyzus circumflexus) (Insecta, Hemiptera, Aphididae) in Greenland

We report for the first time the presence of the globally distributed and extremely polyphagous pest species—the crescent-marked lily aphid (or mottled arum aphid) (Neomyzus circumflexus L.) (Insecta, Hemiptera, Aphididae)—in Greenland. This species, of alien origin, was found on the ornamental plant Salix arbuscula L., imported from Denmark and sold in the main supermarket of Nuuk, the capital of Greenland. As this species is not the preferred host plant of N. circumflexus, the possibility must be considered that the aphids were not imported along with S. arbuscula from the mainland but were transferred from other imported ornamental plants sold in the store. Supermarkets selling decorative plants may be becoming reservoirs of alien species, facilitating the movement of aphids and other alien species that “hop on, hop off,” to borrow a phrase from the tourism industry. As unintentional introductions present the greatest threats to the Arctic ecosystems, a stricter approach to regional biosecurity needs to be considered and non-native species control and eradication should be implemented

Capitophorus wojciechowskii - a new aphid species from Iran (Hemiptera: Aphididae: Aphididae: Macrosiphini)

A new aphid species – Capitophorus wojciechowskii sp. n. – from northern Iran, associated with Hippophae rhamnoides and Hippophae sp., belonging to the tribe Macrosiphini (Hemiptera: Aphididae) is described. The fundatrix, apterous viviparous female, oviparous female and apterous male are described and illustrated. Similarities and differences with other Capitophorus species living on Elaeagnaceae are discussed. A key to Elaeagnaceae feeding aphids from the genus Capitophorus is also provided

The first detection of an alien, invasive bamboo aphid species of the genus Takecallis (Hemiptera: Aphididae) in Poland

The first record of an oriental, alien aphid species belonging to the genus Takecallis, associated with the cold hardy bamboo Fargesia rufa T.P.Yi, collected in Słupsk, Pomeranian Voivodeship, Poland, is provided. The increase in worldwide trade of new frost-resistant ornamental bamboo varieties as a source of introducing alien species of insects in Europe and the role of garden centers as potential dispersal sites for these species is discussed

Aphid species alien to Poland (Hemiptera: Aphididae)

A comprehensive list of non-native Aphididae now occurring in Poland is presented. A total of 34 species originating from other continents and one cosmopolitan species of uncertain origin (cryptogenic) are described. Included for each species, where applicable, are references to: the location and date of introduction of the first Polish record, the detailed distribution in Poland, biogeographical origin and host plants

The composition of the aphid fauna (Insecta, Hemiptera) of the Royal Botanic Gardens, Kew

At least a dozen species of aphids (Insecta, Hemiptera) of non-native origin have expanded their range in Europe, however the importance of botanic gardens in this phenomenon has not been studied previously in detail. As a case study, investigations on the species composition and host range of Aphidomorpha in the Royal Botanic Gardens, Kew, London, United Kingdom, were conducted over a period of twelve days, in June 2017. The inventory study was carried out in the collection of living plants, both in the gardens and the glasshouses and nurseries. In total, 94 taxa of Aphidomorpha are identified (one phylloxerid, one adelgid and 92 species of aphids). 20 species are regarded as alien to the European aphid fauna and among them nine are believed to be the first published records for Kew. 20 species are regarded as serious pests, capable of virus transmission. The list of host plants includes 155 taxa from 89 genera and 49 families. Ericolophium holsti (Takahashi), species of Asiatic origin associated with Rhododendron spp., was found for the first time in the field in the UK. Changes in the species composition of the aphid fauna in reference to the Eastop’s studies in 1960s were discussed

Aphids (Hemiptera: Aphidomorpha) of the Botanic Garden of the Jagiellonian University, Kraków

The paper presents results of faunistic investigations of aphids (Aphidomorpha) in the Botanic Garden of the Jagiellonian University, Kraków, in the Kraków – Wieluń Upland. During two seasons of research (2011, 2012) two aphid species from the family Adelgidae and 50 species from the family Aphididae, associated with 66 host plants were recorded. The following species – Eriosoma anncharlotteae DANIELSSON, 1979, Capitophorus elaeagni (DEL GUERCIO, 1894), Rhopalosiphoninus (Neorhopalosiphoninus) staphyleae staphyleae (KOCH, 1854), Eulachnus brevipilosus BÖRNER, 1940 and E. cembrae BÖRNER, 1950 – are new for the Kraków – Wieluń Upland. Seven of the species recorded are regarded as alien to Poland

The reproductive system of the male and oviparous female of a model organism— the pea aphid, Acyrthosiphon pisum (Hemiptera, Aphididae)

The structure of the reproductive system of the sexual generation—males and oviparous females—of the pea aphid Acyrthosiphon pisum (Harris) (Hemiptera, Aphididae), a serious pest of cultivated plants of Fabaceae, was investigated. For the first time we describe the morphology, histology and ultrastructure of the reproductive system in both morphs of the sexual generation of aphids within one species, using light and fluorescent microscopy, as well as transmission and scanning electron microscopy. The results revealed that males have testes composed of three follicles fused by the upper ends of the vasa efferentia, the vasa deferentia run independently, the accessory glands are asymmetric and the ejaculatory duct shortened. Oviparous females have ovaries composed of seven ovarioles each. The lateral oviducts join to a short common oviduct connected with the unpaired spermatheca and paired accessory glands. Yolky eggs with an aggregation of symbiotic bacteria at the posterior pole are produced. Histologically, the components of genital tracts are broadly similar: the epithelial cells of the walls of the vasa deferentia and accessory glands of the male and oviparous female have secretory functions which correlate with the age of the studied morphs. We also found symbiotic bacteria within the vasa deferentia epithelial cells in males and within the cells of the lateral oviducts of females. Because the pea aphid is listed among the 14 species that are of the greatest economic importance, our results will be useful for managing aphid populations, protecting plants and ensuring global food security