Gall-inducing Aphids (Hemiptera: Aphidoidea: Eriosomatinae) Associated with Salicaceae and Ulmaceae in Razavi Khorasan Province, with New Records for Fauna of Iran

A survey of gall-inducing aphids on elm and poplar trees was carried out during 2017 in Razavi Khorasan province, NE Iran. As a result, 15 species of gall-inducing aphids from 5 genera, all belonging to the subfamily Eriosomatinae, were recorded on 6 host plant species. The collected species included the genera Eriosoma, Kaltenbachiella, Pemphigus, Tetraneura and Thecabius. Pemphigus passeki Börner (Hemiptera: Aphididae) and Pemphigus populinigrae (Schrank) (Hemiptera: Aphididae) on Populus nigra var. italica (Salicaceae) were new records for the Iranian aphid fauna. Both new recorded species belong to the tribe Pem-phigini, subfamily Eriosomatinae. Among the identified species, 8 aphid species were new records for Razavi Khorasan province

A comparative morphological revision of the aphid genus Myzaphis van der Goot, 1913 (Insecta: Hemiptera: Aphididae) revealed a new genus and three new species

The aphid genus Myzaphis van der Goot, 1913 from the tribe Macrosiphini is revised to include eight species. Apterous and alate viviparous females, known fundatrices and known sexual morphs (oviparous females and males) of Myzaphis bucktoni, M. juchnevitschae, M. rosarum, M. tianshanica and M. turanica are re-described and illustrated. Lectotype and paralectotypes of Myzaphis bucktoni and M. turanica are designated. The status of M. komatsubarae nomen dubium is discussed. Myzaphis avariolosa is regarded as a species belonging to the genus Ericaphis. Three new species: M. oezdemirae Kanturski & Barjadze sp. nov., M. tuatayae Kanturski & Barjadze sp. nov. from Turkey and M. rezwanii Kanturski & Barjadze sp. nov. from Iran are described and illustrated. Myzaphis bucktoni is recorded from Portugal for the first time. Diagnosis of the genus Myzaphis van der Goot, 1913 is redefined and a new genus Richardsaphis Kanturski & Barjadze gen. nov. is erected with the type species R. canadensis (Richards) comb. nov. Richardsaphis is for the first time recorded from the USA and hitherto unknown oviparous female and alate male are described and illustrated. Original keys to species of the genus Myzaphis and aphid genera of the tribe Macrosiphini with 2-2-2 first tarsal chaetotaxy are also provided

A review of the aphid genus Macrosiphoniella del Guercio, 1911 (Hemiptera: Aphididae) in the USA with description of a new species

Here we present a review of the 18 species of the Macrosiphini genus Macrosiphoniella (Hemiptera: Aphididae) known to occur in the United States of America, representing two subgenera, Macrosiphoniella and Phalangomyzus Börner, 1939. We report key features for all species including colour in life and pigmentation on slides of apterous and alate viviparous females of all 18 species. Distributional data, host plants, and biological notes of the reviewed species are presented. Apterous, alate and oviparous females of a new native USA species, Macrosiphoniella sunshine sp. nov., associated with Eriophyllum lanatum (Asteraceae) are described from specimens collected in California, Oregon, and Washington. Keys to apterous and alate viviparous females of the Macrosiphoniella in the USA are also provided

Ericaphis voegtlini, a new, unusual aphid species from the USA (Hemiptera, Aphididae)

Ericaphisvoegtlinisp. n. living on Chamaebatiafoliolosa (Rosaceae) in California is described based on apterous and alate viviparous females. The new species differs from all other species of the genus Ericaphis Börner, 1939 in several important morphological characters including very long and rigid dorsal setae and distinctly swollen siphunculi with clearly visible polygonal reticulation

Fundatrices of the genus <i>Myzaphis</i>.

<p>(A) <i>M</i>. <i>bucktoni</i>. (B) <i>M</i>. <i>rezwanii</i> sp. nov. (C) <i>M</i>. <i>rosarum</i>. (D) <i>M</i>. <i>tianshanica</i>. (E) <i>M</i>. <i>tuatayae</i> sp. nov.</p

Identity of Schizaphis species (Hemiptera Aphididae) in the United Kingdom are they a threat to crops?

AbstractThe greenbug, Schizaphis graminum (Rondani), is a major pest of cereals in some parts of the world and is of particular concern because it can be resistant to some insecticides and overcome the resistance of crops. In the UK, it has never been found on crops, but two rather little-known and closely-related species (Schizaphis holci and Schizaphis agrostis) are associated with the wild grasses, Holcus lanatus and Agrostis stolonifera. Since 1987, winged (alate) aphids morphologically resembling the greenbug have been found in increasing numbers in 12.2 m high suction-trap samples of the Rothamsted Insect Survey (RIS); hence, studies were undertaken to establish their identity. Clones (=asexual lineages) established from populations collected from H. lanatus in southern England showed strong preference for Holcus over Agrostis and Hordeum in laboratory tests and produced sexual morphs when transferred to short-day conditions, the males being apterous, as expected for S. holci. Multivariate morphometric comparisons of alatae caught in UK RIS suction traps in 2007 and 2011 with named specimens from museum collections, including S. graminum from many countries, indicated that the suction-trapped alatae were mostly S. agrostis and S. holci. Cytochrome c oxidase subunit I (COI) mtDNA obtained from 62 UK specimens from suction-traps had 95.4–100% sequence identity with US specimens of S. graminum. Two of the UK specimens had identical COI sequence to the US sorghum-adapted form of S. graminum, and these specimens also had 100% identity with a 640 bp fragment of nDNA CytC, indicating that this form of S. graminum may already be present in the UK. Present and future economic implications of these results are discussed.</jats:p

A comparative morphological revision of the aphid genus <i>Myzaphis</i> van der Goot, 1913 (Insecta: Hemiptera: Aphididae) revealed a new genus and three new species - Fig 2

<p>SEM of the most important generic features of the genus <i>Myzaphis</i> on the basis of the type species <i>M</i>. <i>rosarum</i>: A. head showing compound eyes (e), little developed antennal tubercles (at), median frontal tubercle (ft) and ANT I (I). B. shape of median frontal tubercle with two very short setae; C. structure of head seta (trichoid sensillum). D. apical rostrum segments (mouthparts) with type I tricoid sensilla (dotted arrow) on the third segment (R III), fourth segment (R IV) bears pair of type II basiconic sensilla (black arrow), four accessory setae–type I trichoid sensilla (1–4), three pairs of primary setae–type I trichoid sensilla (white asterisk) and type III basiconic sensilla (black asterisk). E. hind tarsus with short first segment (HT I) and longer second segment with claws (HT II). F. ventral side of HT I with five pairs of setae: two pairs of long and fine setae and one central short and rigid “sense peg”. G. apical part of HT II showing normal shaped claws and parempodia with flat apices (white arrows). H. general wiev on the dorsal cuticle. I. rounded or oval recesses on the cuticle; J. structure of dorsal abdominal seta (trichoid sensillum). K. dorsal side of the end of abdomen showing siphunculi (SIPH) on ABD VI (VI), ABD VII (VII) separated from ABD VIII (VIII) and tongue-shaped cauda (c). L. apical part of siphunculus with wide flange (solid arrow) and the siphuncular aperture closed by operculum (dotted arrow). M. ABD VIII (VIII) and cauda with six fine and pointed setae. N. ventral side of the end of abdomen showing the removed siphinculi (SIPH) perianal structures: genital plate (gp), anal plate (ap) and cauda (c). O. lateral side of the end of abdomen showing the siphunculus (SIPH) and the perianal structures: ABD VIII (VIII), cauda, anal plate (ap) and genital plate (gp).</p