Mealybugs of the Genus Fonscolombia Licht. (Homoptera, pseudococcidae) of the Fauna of Russia and Adjacent Countries

摘要

The genus name Euripersia Borchs. is considered a junior synonym of Fonscolombia Licht. based on the absence of essential differences between type species of these genera. The key to Fonscolombia includes, in addition to the type species, nine speciesfrom Russia and adjacent countries. Eight of these species are redescribed and illustrated, F. butorinae Danzig et Gavrilov, 2005 has been recently described as new. Two species originally described in Euripersia do not belong to this genus. One is transferred to Trionymus Berg, and thus a new combination is established: Trionymus mongolicus (Danzig), comb. n. Synonymy of Euripersia caulicola with Phena-coccus incertus Kir. has been established recently (Danzig, 2005). Other species presently placed inEuripersia (Ben-Dov, 1994) need a revision. Lectotypes are designated for 4 nominal species. Fonscolombia is related to Phenacoccus Sign., the separation of these two genera is not clear. Fonscolombia is characterized by broad-oval and convex body, poorly developed anal lobes, short, 6-8-segmented (F. edentata and F. herbacea with 7-9-segmented) antennae, and cerarii present on the last abdominal segments only (C_3 sometimes present). Most species live on roots of grasses (F. butorinae between leaves near soil, F. herbacea, on dicotyledonous herbs) and are characterized by ovoviviparity.