Viviparous Females Research Articles

Notes on the subfamily Greenideinae (Hemiptera: Aphididae) from Laos, with descriptions of two new species

Two new species, Eutrichosiphum nasensissp. nov. and Greenidea kheemoticolasp. nov., and two new records, Greenidea eugeniae Takahashi 1941 and Schoutedenia ralumensis Rübsaamen 1905, belonging to the subfamily Greenideinae Baker 1920 are described from Laos. E. nasensissp. nov. is distinguished by unique abdominal pigmentation and the relative length of ultimate rostral segment and 2nd tarsal segment. G. kheemoticolasp. nov. is characterized by the relative length of siphunculus and the maximum width of same segment. Illustrations for above 4 species and identification key to all the species from Laos for apterous viviparous females are provided.

New species of the aphid tribe Macrosiphini (Homoptera, Aphididae, Aphidinae) from Kazakhstan

Two new species of the genera Uroleucon Mordvilko, 1914 and Pleotrichophorus Borner, 1930 are described from Kazakhstan. Uroleucon dzhungaricum sp. n. feeding on Senecio nemorensis L. (Asteraceae) in the Dzhungar Ala Tau is closely related to U. minor (Borner, 1940). Both these species differ from the closely related U. solidaginis (Fabricius, 1794) in a smaller length ratio between the processus terminalis and the 3rd antennal segment (0.8–1.0 versus 1.0–1.5). The new species differs from U. minor (Born.) in a greater number of the secondary rhinaria on the 3rd antennal segment of the apterous viviparous females (21–37 versus 15–21), in a fewer number of hairs on the cauda (10–16 and 15–23), and in the host plant. Pleotrichophorus ugamicus Kadyrbekov, sp. n. feeding on Artemisia santolinifolia Turcz. is described from the Sairam-Ugam Natural Park (Southern Kazakhstan). The new species is similar to P. glandulosus (Kaltenbach, 1846) and P. achilleae Holman, 1965. Pleotrichophorus ugamicus sp. n. differs from these species in the length ratio of the processus terminalis to the base of the 6th antennal segment (4.1–5.0 versus 5.0–9.0 and 5.1–6.2), in that of the ultimate rostral segment to the 2nd segment of the hind tarsus (0.68–0.76 versus 0.80–0.97 and 0.80–0.90), and in the host plant. This species differs from P. glandulosus in the ratio of the length of dorsal hairs on tergites I–V to the basal diameter of the 3rd antennal segment (1.0–1.2 and 1.4–1.7). In addition, the new species differs from P. achilleae in the length ratio of the 3rd antennal segment to the 6th segment (0.56–0.66 versus 0.70–0.87) and to the processus terminalis (0.67-0.82 versus 1.39–1.80), as well as in the shape of the dorsal hairs. A key to the Palaearctic species of the genus Pleotrichophorus is presented.

Samsun ili kestane ağaçlarında görülen yaprakbiti, Lachnus roboris (Linnaeus, 1758) (Hemiptera: Aphididae) üzerine bir araştırma

In this study, Lachnus roboris Linnaeus (Hemiptera: Aphididae) on the samples of chestnut trees was recorded for the first time in the Ondokuz Mayis University Campus in Samsun and were examined morphologically in laboratory. Photographs of various body parts of apterous viviparous females of L. roboris were taken and morphological measurements of 40 apterous viviparous females and 120 eggs were also performed. In the study, egg length, body length, body width, antenna (left), (right),and corniculus of the pest were determined to be 1.70 mm, 4.66 mm, 2.23 mm, 2.23 mm, 1.99 mm and 471.57 µm, respectively. In addition, PT/ BASE ratio of Ant.VI was found as 0.45.

Three new Asiatic species of Hyadaphis (Hemiptera, Aphididae)

Three new species of Hyadaphis Kirkaldy, 1904 (Hemiptera, Aphididae, Macrosiphini) are established: Hyadaphis levantina sp. n. from specimens caught on Lonicera nummulariifolia from Lebanon and Israel, and Hyadaphis anethi sp. n. plus Hyadaphis parva sp. n. from specimens respectively caught on Anethum sp. and Andrachne (?) cordifolia from Pakistan. Apterous viviparous females of all three species, alate viviparae of the first two and males of H. anethi are described. Known and new species of Hyadaphis are grouped for two relevant characters: (1) size and shape of siphunculi, and (2) host plant and life cycle; and the discriminant features of apterous viviparous females of the new species are compared with the already described species of the same group and a key for the Hyadaphis species is provided.

Taxonomical implications of the comparative study of the genus Drepanosiphum Koch, 1855 (Hemiptera: Aphididae, Drepanosiphinae)

The aim of the study was to review the sexual generation of the species of the aphid genus Drepanosiphum Koch. Oviparous females and males of Drepanosiphum iranicum Hille Ris Lambers are described and illustrated in detail. The poorly known sexuales of D. acerinum (Walker), D. aceris Koch, D. braggii Gillette, D. dixoni HRL, D. oregonensis Granovsky and D. platanoidis (Schrank) are re-described and illustrated in detail. Biometric data for the oviparous females and males are reported and keys for the sexual generation of the species that were studied are provided for the first time. The status of the closely related species D. acerinum and D. caucasicum as well as D. platanoidis and D. iranicum is discussed. The newly recognised species D. latifemorum sp. n., which is closely related to D. oregonensis, is described. Blackman and Eastop’s general key to the species that are associated with Acer spp. is modified to include the new species. The most significant diagnostic characters of winged viviparous females of all of the known Drepanosiphum species are also provided and illustrated.

The first record of tulip tree aphid, Illinoia liriodendri (Hemiptera: Aphididae), from Slovakia - short communication

The tulip tree aphid, Illinoia liriodendri, is reported in Slovakia for the first time. Colonies of I. liriodendri were found on tulip trees, Liriodendron tulipifera, in two locations of south-western Slovakia in 2014 and 2015. Colonies of nymphs and viviparous females fed on the underside of leaves with no significant symptoms of damage to tulip trees. In this short study, the first report of the aphid from Slovakia is presented and original illustrations with results of morphometric analysis of alate viviparous females are provided.

Descriptions of little-known and unknown morphs of Periphyllus acerihabitans Zhang (Hemiptera: Aphididae: Chaitophorinae)

Periphyllus acerihabitans Zhang, 1982, associated with Acer buergerianum, is known only from the original description from China. Based on the type series and specimens collected in Japan, we re-describe apterous and alate viviparous females of P. acerihabitans and describe dimorph (aestivating nymph) and oviparous female in detail with illustrations. This is the first record of this species from Japan. The differences between P. acerihabitans and a related species P. viridis (Matsumura, 1919) are discussed. Keys to similar species: P. acerihabitans, P. viridis and P. californiensis (Shinji, 1917), associated with A. buergerianum or A. pictum subsp. mono, are provided.

Three new South American species of genus Aphis (Hemiptera: Aphididae) <br />living on species of Euphorbia (Euphorbiaceae)

Three species of Aphis living on species of Euphorbia in Argentina and Chile are described: Aphis tehuelchis Nieto Nafría & López Ciruelos, sp. n., from viviparous females collected in the Argentinean provinces of Santa Cruz and Neuquén, Aphis maulensis Mier Durante & García-Tejero, sp. n., from viviparous females collected in the Chilean Region VII, and Aphis eucollinae López Ciruelos & Ortego, sp. n., from viviparous females, oviparous females and males collected in the Argentinean province of Mendoza. These new species may be distinguished from each other, besides other features, by the abdominal marginal tubercles: in A. tehuelchis these are present on segments 1 and 7 and on several of segments 2 to 6, in A. maulensis they are on segment 1 and on several segments 2 to 6, but lacking on segment 7, and in A. eucollinae they are only on segments 1 and 7. Differences between the new species and those currently known living on Euphorbia around the world are presented.

A new species of Aphis Linnaeus (Hemiptera, Aphididae) living on Teucrium polium L. (Lamiaceae).

Aphis polii sp. n. living on Teucrium polium L. (Lamiaceae) is described, based on apterous and alate viviparous females and oviparous females. It has been collected from seventeen localities in mainland France, Corsica, Italy, Ukraine, Lebanon and Iran. The new species is similar to two other Aphis species that feed specifically on plants of the genus Teucrium, but has a relatively longer ultimate rostral segment. Characters are provided to discriminate between the three Teucrium-feeding species, and to distinguish the new species from other morphologically similar Aphis species that feed on Lamiaceae. Type specimens are deposited in the Muséum national d'Histoire naturelle, Paris, France (MNHN), the UMR Centre de Biologie pour la Gestion des Populations, Montpellier, France and the Natural History Museum, London, UK (BMNH).

Wojciechaphis andrei gen. et sp. nov. (Hemiptera: Aphidomorpha, Drepanosiphidae, Phyllaphidinae), a new aphid genus from Baltic amber

Abstract Here we describe a new aphid genus and species Wojciechaphis andrei gen. et sp. nov. belonging to the extant family Drepanosiphidae, also known from Baltic amber (Eocene). The first adult apterous viviparous female of Mengeaphis glandulosa (Menge, 1856) is described too.

Blackmania gen. nov. and the related genus Acaudella (Hemiptera: Aphididae: Aphidinae)

AbstractThe aphid genus Blackmania gen. nov. is described. In the genus, B. eastopi sp. nov. associated with Polygonum equisetiforme (Polygonaceae) from Israel and Cyprus is described and illustrated. Morphologically, the new genus is similar to the genus Acaudella in respect to the lack of a cauda. Acaudella puchovi, associated with Atraphaxis caucasica (=A. buxifolia) and A. spinosa (Polygonaceae) from Uzbekistan and Israel, is re‐described and the apterous viviparous female is figured for the first time. The lectotype and paralectotypes of A. puchovi are also designated. An identification key to known species of the tribe Macrosiphini without cauda is provided. The morphological separation of B. eastopi gen. nov., sp. nov. from A. puchovi is visualized using principal component analysis.

A new species of Mollitrichosiphum Suenaga from Taiwan Island (Hemiptera, Aphididae), based on morphological characteristics and DNA sequences.

A new species of Mollitrichosiphum Suenaga, Mollitrichosiphum tumorisiphum Qiao & Jiang, sp. n., from Fagus longipetiolata in Taiwan island is described. Siphunculi of Mollitrichosiphum tumorisiphum in alatae are distinctly swollen on the distal part, unlike those of the other known species in the genus. Updated keys to apterous and alate viviparous females of all known Chinese species of Mollitrichosiphum are provided. The specimens studied are deposited in the National Zoological Museum of China, Institute of Zoology, Chinese Academy of Sciences, Beijing, China and the Natural History Museum, London, United Kingdom.

Eichinaphis Narzikulov (Hemiptera: Aphididae), a new record genus from Mongolia

Aphid genus Eichinaphis Narzikulov and Eichinaphis pamirica Narzikulov are new records in Mongolia, based on the materials of apterous and alate viviparous females from south-west Mongolia. Detailed morphological redescription, illustrations and photographs are provided. Notes on its host plants and distribution are also included.

Morphology of the European species of the aphid genus Eulachnus (Hemiptera: Aphididae: Lachninae) – A SEM comparative and integrative study

Scanning electron microscopy (SEM) methods were used for the first time to elucidate the external morphology of the European species of the genus Eulachnus (Hemiptera: Aphididae: Lachninae), a representative genus of the conifer-feeding aphids tribe Eulachnini. We examined and compared the external morphology of apterous and alate viviparous females from the parthenogenetic generation as well as oviparous females and alate males belonging to the sexual generation. FE-SEM images based on HMDS and cryo-SEM preparation techniques revealed better image quality than the CPD technique in regard to surface tension and morphological signs of cell deteriorations (i.e., existence of depressions, drying artifacts and membrane blebs). Three morphologically different species groups “agilis”, “brevipilosus” and “cembrae” were proposed due to the differences in head, antennae, legs and dorsal chaetotaxy as well as dorsal sclerotization. The most characteristic features and differences of representatives of these groups are presented and discussed.

A new species of Acyrthosiphon (Hemiptera, Aphididae) from France and Spain.

A new species in one of the largest genera of Macrosiphini (Hemiptera, Aphididae), Acyrthosiphon pilosum sp. n., is described from apterous and alate viviparous females and oviparous females from French and Spanish Mediterranean localities, living on species of Ononis (Fabaceae), mainly O. natrix. The new species is characterized by the presence of many accessory setae on the ultimate rostral segment, and usually five setae on the first tarsal segments, a combination that is not present in any other known Acyrthosiphon species; in addition marginal tubercles are present on prothorax and several of abdominal segments 2-5.

A new record of Aphis punicae Passerini, 1863 (Hemiptera: Aphididae) from Korea

The pomegranate aphid, Aphis punicae Passerini, 1863 (Hemiptera: Aphididae), was firstly collected on Punica granatum L. (Lythraceae) in Korea. For accurate species identification of A. punicae, we compared it with four other pomegranate-feeding Aphis species using molecular and morphological characteristics. In the morphometric analysis, A. punicae is distinguished from Aphis gossypii, which is morphologically similar to A. punicae, by shorter lengths of Ant.IV, Ant.V, and URS and a lower number of hairs on GP. In the sequence analysis, A. punicae reveals genetic differences ranging from 2.1% to 2.4% from A. gossypii in COI gene. In this study, we describe apterous and alate viviparous females of A. punicae and present and identification key to the subgenus Aphis on P. granatum.

Two new species of Aphidini Latreille, 1802 (Hemiptera: Aphididae) from Turkey.

Apterous and alate viviparous females of Protaphis kvavadzei sp. n. on Eryngium campestre (Apiaceae) and Aphis matricariae sp. n. on Matricaria sp. (Asteraceae) from Turkey are described. The new species are differentiated from other aphids colonising these host plants and from species with similar morphology.

A new genus of Macrosiphini Wilson, 1910 (1887) (Hemiptera: Aphididae) from Rhododendron in Turkey.

Rhododendraphis tuatayae gen. n., sp. n. living on Rhododendron sp. (Ericaceae) in Turkey is described based on apterous viviparous females. The new genus is morphologically most similar to Rostratusaphis Fang and Qiao, 2009, but differs in several important characters. Differences between the new genus and other aphid genera with a spinulose second tarsal segment living on Rhododendron spp. worldwide are described. Type specimens are deposited at the Natural History Museum of London (BMNH).

A new iranian species of <em>Uroleucon</em> Mordvilko, 1914 (Hemiptera, Aphididae) from specimens in the Natural History Museum collection

Uroleucon (Uromelan) helichrysi sp. n. (Hemiptera, Aphididae, Aphidinae: Macrosiphini) is established from Iranian apterous and alate viviparous females caught on Helichrysum sp. (Asteraceae) and preserved in the collection of the Natural History Museum (BMNH) in London. The number of setae on the first tarsal segments (5), the number of caudal setae (20 to 28), the presence of abdominal marginal tubercles on abdominal segments 2 to 4, and the size of the cells of the siphuncular reticulation (relatively small) allow the new species to be distinguished from other Palaeartic species of the subgenus Uromelan. Blackman and Eastop’s key to apterae on Helichrysum is modified to include the new species. urn:lsid:zoobank.org:pub:E2B89D59-05FD-4A9E-AD78-B3C302219A10

First Occurrence of the Aphid Parasitoid,Aphelinus basilicus(Hymenoptera: Aphelinidae), onAphis gossypii(Hemiptera: Aphididae) Color Forms in India

Summary An aphid parasitoid, Aphelinus basilicus Fatima & Hayat (Aphelinidae: Aphelininae) is described from material collected in Bengaluru, Karnataka for the first time. It was found to parasitize apterous viviparous females of the cotton aphid, Aphis gossypii (Glover) infesting Gossypium hirsutum (Malvaceae), during Jul, 2013. Field data indicated that the parasitoid, Aphelinus basilicus parasitized dark green forms (88%) of A. gossypii more frequently than pale green (24%) and yellow forms (2%) suggesting that the body color strongly influenced the host preference for foraging. The 3 color forms were differentially susceptible to selection by the parasitoid. Statistical analysis revealed that the parasitoid had an inherent preference for dark green forms (P < 0.05). Information on the parasitoid's distribution, diagnostic characters, host range and host preference are presented to ease the identification as well as to understand the fundamentals of host selection behavior of this species. This is a ne...