New Afrotropical scale insect pests (Homoptera: Coccinea) under glass in St Petersburg, Russia
I.A. Gavrilov-Zimin & D.A. Gapon
Abstract. Two Afrotropical scale insect species, Trochiscococcus speciosus (De Lotto, 1961) and Ripersiella aloes (Williams et Pellizzari, 1997), are recorded for the first time in Russia, St Petersburg, under glass on the roots of Gasteria sp. (Asphodelaceae). The first species is morphologically described and illustrated by a standard total coccidological figure and by the photograph; a study of the reproductive biology of this species revealed an obligate ovoviviparity, parthenogenesis (thelytoky) and the chromosomal number 2n=10. The quarantine status for both species is advised on the territory of Russia and neighbouring countries.
Key words: scale insects, mealybugs, quarantine pests, morphology, reproductive biology, karyotype
Zoosystematica Rossica, 2016, 25(2): 233–238 ▪ Published in print 27 December 2016
https://doi.org/10.31610/zsr/2016.25.2.233 ▪ Open full article 
References
Danzig E.M. & Gavrilov-Zimin I.A. 2014. Palaearctic mealybugs (Homoptera: Coccinea: Pseudococcidae). Part 1. Subfamily Phenacoccinae. Fauna of Russia and neighbouring countries. New series, No. 148. Insecta: Hemiptera: Arthroidignatha. St Petersburg: ZIN RAS. 678 p.
Danzig E.M. & Gavrilov-Zimin I.A. 2015. Palaearctic mealybugs (Homoptera: Coccinea: Pseudococcidae). Part 2. Subfamily Pseudococcinae. Fauna of Russia and neighbouring countries. New series, No. 149. Insecta: Hemiptera: Arthroidignatha. St Petersburg: ZIN RAS. 619 p.
Gavrilov-Zimin I.A. 2015. System of generic groups in mealybugs (Homoptera: Coccinea: Pseudococcidae). Zoosystematica Rossica, 24(2): 237–260.
Gavrilov-Zimin I.A. 2016. Cytogenetic and taxonomic studies of some legless mealybugs(Homoptera: Coccinea: Pseudococcidae). Comparative Cytogenetics, 10(4): 587–601. https://doi.org/10.3897%2FCompCytogen.v10i4.10503
Gavrilov I.A. & Trapeznikova I.V. 2007. Karyotypes and reproductive biology of some mealybugs (Homoptera: Coccinea: Pseudococcidae). Comparative Cytogenetics, 1(2): 139–148.
Williams D.J. & Pellizzari G. 1997. Two species of mealybugs (Homoptera Pseudococcidae) on the roots of Aloaceae in greenhouses in England and Italy. Bollettino di Zoologia Agraria e di Bachicoltura (Milano) Ser. II, 29: 157–166.
