Valid Names Results
Trionymus newsteadi (Green, 1917) (Pseudococcidae: Trionymus)Nomenclatural History
- Pseudococcus newsteadi Green 1917a: 265. Type data: ENGLAND: Surrey, Camberley, on Fagus sylvatica. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name
- Trionymus newsteadi (Green, 1917); Zahradnik 1959a: 538. change of combination
- Balanococcus newsteadi (Green, 1917); Tang 1992: 132. change of combination
- Dysmicoccus newsteadi (Green, 1917); Lagowska & Koteja 1996: 33. change of combination
- Trionymus newsteadi (Green, 1917); Danzig 1997a. revived combination (previously published)
Common Names
- beech mealybug
Ecological Associates
Hosts:
Families: 1 | Genera: 2
- Fagaceae
- Fagus | MarottTr1995 TerGri1969
- Fagus orientalis | BenDov1994 TerGri1962
- Fagus silvatica | BenDov1994 Green1917a KotejaZa1983 Lagows1986 MarottTr1995 Zahrad1956
- Quercus | BugajNJuKa2021
Foes:
Families: 1 | Genera: 1
- Encyrtidae
- Anagyrus belibus | Trjapi1989 | (= Doliphoceras belibus)
Geographic Distribution
Countries: 12
- Armenia | BenDov1994 Borchs1949 TerGri1969
- Czech Republic | BenDov1994 Lagows1986 Zahrad1956
- Georgia (Republic of) | BatsanKaKi2017
- Germany | BenDov1994 Schmut1952 Schmut1980
- Hungary | BenDov1994 KosztaKo1988F
- Italy | LongoMaPe1995 MarottTr1995
- Netherlands | BenDov1994 Reyne1957
- Poland | BenDov1994 Koteja2000a KotejaZa1966 KotejaZa1979 KotejaZa1983
- Russia
- Caucasus | Danzig1997a
- Ukraine | BenDov1994 Terezn1975
- United Kingdom
- England | BenDov1994 Green1917a
- Yugoslavia | BenDov1994 Kozar1983a
Keys
- Hodgso2020: pp.32-34 ( Adult (M) ) [higher groups of Pseudococcidae]
- DanzigGa2015: pp.99-106 ( Adult (F) ) [Palaearctic Trionymus species]
- Danzig1997a: pp.96 ( Adult (F) ) [Palaearctic region]
- Tang1992: pp.128 ( Adult (F) ) [Palaearctic & Oriental regions] Key as: Balanococcus newsteadi
- KosztaKo1988F: pp.158 ( Adult (F) ) [Central Europe]
- Terezn1975: pp.263 ( Adult (F) ) [Ukraine]
- TerGri1973: pp.63 ( Adult (F) ) [Armenia]
- Willia1962: pp.59 ( Adult (F) ) []
- Borchs1949: pp.96 ( Adult (F) ) [Palaearctic region] Key as: Pseudococcus newsteadi
Remarks
- Structure: Female body broadly oval, up to 3 mm long. Antennae 8-segmented. Legs normally developed; hind coxae with numerous translucent pores. Anal apparatus complete. Ostioles represented by posterior pair only. Circulus large, rounded or trapezoid. Multilocular pores forming transverse rows on 5 posterior abdominal sternites and occasionally present near coxae. (Danzig & Gavrilov-Zimin, 2015)
- Biology: Occurring under the bud scales and in the crevices in the bark of beech trees. Life history and natural enemies discussed by Kosztarab & Kozár (1988F).
- General Remarks: Good description and illustration of the adult female given by Williams (1962), Ter-Grigorian (1973) and by Tereznikova (1975). Good description of the adult female given by Borchsenius (1949), Kosztarab & Kozár (1988F) and by Tang (1992). Good description and illustration of the adult male given by Afifi (1968).
Illustrations
Citations
- Afifi1968: description, distribution, host, illustration, male, taxonomy, 126-130
- Alam1957: biological control, 421-466
- BatsanKaKi2017: distribution, host, 266
- BenDov1994: catalog, 521-522
- Borchs1949: description, distribution, host, taxonomy, 157-158
- BugajNJuKa2021: distribution, host, list, 312
- Danzig1997a: distribution, host, taxonomy, 108
- DanzigGa2015: description, distribution, host, illustration, key, taxonomy, 158-159
- Green1917a: description, distribution, host, illustration, taxonomy, 265-266
- Hodgso2012: taxonomy, 64
- Hodgso2020: key, 34
- Jansen2001: distribution, host, 197-206
- Kiritc1936a: distribution, host, taxonomy, 131
- Kohler2009a: distribution, host, 24
- KohlerEi2005: distribution, host, 161
- KohlerEi2006: distribution, host, 14
- KosztaKo1988F: description, distribution, host, life history, taxonomy, 164
- Koteja2000a: distribution, 172
- KotejaPyVo2003: structure, taxonomy, 253
- KotejaZa1966: distribution, host, 319
- KotejaZa1979: distribution, 671
- KotejaZa1983: distribution, host, 475
- Lagows1986: distribution, host, 476
- LagowsGo2020: distribution, 71
- LagowsKo1996: distribution, host, 31, 33
- LongoMaPe1995: distribution, 121
- Reyne1957: distribution, host, 19
- Schmut1952: description, distribution, host, illustration, taxonomy, 388-390
- SchmutHo2016: distribution, host, 31-32
- SimonKa2011: distribution, 235
- TerGri1962: distribution, host, 127
- TerGri1969: distribution, host, 53
- TerGri1973: description, distribution, host, illustration, taxonomy, 72-73
- Terezn1975: description, distribution, host, illustration, taxonomy, 270-272
- Trjapi1989: biological control, 139
- Willia1962: description, distribution, host, illustration, taxonomy, 61-62
- Willia2017a: catalog, list of species, 248
- WilliaMa2012: distribution, 85
- Zahrad1956: description, distribution, host, taxonomy, 50
- Zahrad1959a: distribution, host, 538
