title: Descriptions of little-known and unknown morphs of Periphyllus acerihabitans Zhang (Hemiptera: Aphididae: Chaitophorinae).
abstract: 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.
authors.affiliation: Department of Zoology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40-007 Katowice, Poland.; Email: karina.wieczorek@us.edu.pl.
authors.forename: Karina
authors.initials: K
authors.lastname: Wieczorek
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Beijing 100101, China.; Email: qiaogx@ioz.ac.cn.
authors.forename: Ge-Xia
authors.initials: GX
authors.lastname: Qiao
authors.affiliation: Systematic Entomology, Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita-ku, Sapporo 060-8589, Japan.; Email: sanomasakazu.75@gmail.com.
authors.forename: Masakazu
authors.initials: M
authors.lastname: Sano
authors.affiliation: Entomological Laboratory, Ehime University, Tarumi 3-5-7, Matsuyama 790-8566, Japan.; Email: hymushi@agr.ehime-u.ac.jp.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yoshitomi
authors.affiliation: Department of Zoology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40-007 Katowice, Poland.; Email: mariusz.kanturski@us.edu.pl.
authors.forename: Mariusz
authors.initials: M
authors.lastname: Kanturski
mesh_terms: D000818:Animals; D001042:Aphids / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D005260:Female; D013045:Species Specificity