Species Chorizococcus rostellum (Lobdell, 1930)

Museums

Regional Maps

• Trionymus rostellum Lobdell, G. H. 1930. Twelve new mealybugs from Mississippi. (Homoptera: Coccoidea). Annals of the Entomological Society of America 23: 209-236 [219].

  Type data:

   Holotype BMNH 1 adult ♀, U.S.A.: Mississippi, Chickasaw County, Houston.

  Type host:

   Digitaria sp. [POACEAE]
• Trionymus angustus Cockerell, T.D.A. & Bueker, E.D. 1930. Some geophilous mealy-bugs from Australia. (Homoptera: Coccoidea). American Museum Novitates 441: 1-7 [6].
• Trionymus vallis Ferris, G.F. 1950. Atlas of the Scale Insects of North America. Series 5, v. 5. The Pseudococcidae. (Part 1). Palo Alto, California : Stanford University Press Vol. 5(2) 278 pp. [275].

Taxonomic Decision for Synonymy

• Ferris, G.F. 1953. Atlas of the Scale Insects of North America. v. 6. The Pseudococcidae. (Part 2). Palo Alto, California : Stanford University Press Vol. 6(2) 506 pp. [490] (synonymy of Trionymus vallis Ferris, 1950)
• Williams, D.J. 1985. Australian Mealybugs. London : British Museum (Natural History) 431 pp. [84] (synonymy of Trionymus angustus Cockerell & Bueker, 1930)

Distribution

States

New South Wales

Ecological Descriptors

Sap-feeder.

ID Keys

(Kosztarab, M., 1996) [92] (female; northeastern North USA); (Tang, F.T., 1992) [122] (female; Palaearctic Region); (Kosztarab, M. & Kozár, F., 1988) [87] (female; Central Europe); (Williams, D.J., 1985) [75] (female; Australia); (Kozár, F., 1984) [123] (female; Hungary); (De Lotto, G., 1977) [25] (female; South Africa); (McKenzie, H.L., 1967) [88] (female; U.S.A., California); (McKenzie, H.L., 1964) [220] (female; North America); (McKenzie, H.L., 1961) [16] (female; North America); (Beardsley, J.W., 1960) [213] (male; Hawaii); (McKenzie, H.L., 1960) [694] (female; North America); (Ferris, G.F., 1953) [482] (female; North America); (Ferris, G.F., 1950) [252] (female; North America)

GENERAL

Good description and illustration of the adult female given by Lobdell, G. H. 1930. Twelve new mealybugs from Mississippi. (Homoptera: Coccoidea). Annals of the Entomological Society of America 23: 209–236, Ferris, G.F. 1950. Atlas of the Scale Insects of North America. (Ser. 5, vol. 5). The Pseudococcidae (Part I). Palo Alto, California : Stanford University Press 278 pp., McKenzie, H.L. 1967. Mealybugs of California with taxonomy, biology, and control of North American species (Homoptera: Cooccoidea: Pseudococcidae). Berkeley : Univ. Calif. Press 526 pp., Salazar, T.J. 1972. Contribución al conocimiento de los Pseudococcidae del Perú. Revista Peruana de Entomología 15: 277–303, Williams, D.J. 1985. Australian Mealybugs. London : British Museum (Natural History) 431 pp., Kosztarab, M. & Kozár, F. 1988. Scale Insects of Central Europe. Budapest : Akadémiai Kiado 456 pp., Marotta, S. 1992. [Research on pseudococcids (Homoptera: Coccoidea) from central Italy.] Ricerche su pseudococcidi (Homoptera: Coccoidea) dell'Italia centro-meridionale. Bollettino del Laboratorio di Entomologia Agraria 'Filippo Silvestri', Portici 47: 63–111, Williams, D.J. & Granara de Willink, M.C. 1992. Mealybugs of Central and South America. London, England : CAB International Institute of Entomology 635 pp. and by Kosztarab, M. 1996. Scale insects of Northeastern North America. Identification, biology, and distribution. Martinsburg, Virginia : Virginia Museum of Natural History 650 pp.. Good description and illustration of the adult male given by Beardsley, J.W. 1960. A preliminary study of the males of some Hawaiian mealybugs (Homoptera: Pseudococcidae). Proceedings of the Hawaiian Entomological Society 17: 199–243.Good description of the adult female given by De Lotto, G. 1973. Does the Bermuda grass mealybug Chorizococcus rostellum (Lobdell, 1930) (Homoptera: Coccoidea: Pseudococcidae) occur in Italy?. Entomologica 9: 35–36, Tranfaglia, A. 1981. [Studies on Homoptera, Coccoidea: 5. Morpho-systematic notes on some species of cochineals with descriptions of 3 new species of Pseudococcidae.]. Bollettino del Laboratorio di Entomologia Agraria 'Filippo Silvestri', Portici 38: 3–28 and by Tang, F.T. 1992. [The Pseudococcidae of China]. Taigu, Shanxi, China : Shanxi Agricultural University 768 pp..

BIOLOGY

Predominantly subterranean, infesting the roots of its host plants. This mealybug is common on numerous grass species, particularly on Bermuda Grass, in the southern USA,(see Williams, D.J. & Granara de Willink, M.C. 1992. Mealybugs of Central and South America. London, England : CAB International Institute of Entomology 635 pp.. Kosztarab, M. 1996. Scale insects of Northeastern North America. Identification, biology, and distribution. Martinsburg, Virginia : Virginia Museum of Natural History 650 pp. indicated that on grasses it was found between the leaf sheaths and stem.

ECONOMIC AND CONTROL

In Hawaii, it rarely occurs on sugarcane under field conditions and considered of no economic importance (Beardsley, J.W. 1960. A preliminary study of the males of some Hawaiian mealybugs (Homoptera: Pseudococcidae). Proceedings of the Hawaiian Entomological Society 17: 199–243).

General References

Kosztarab, M. & Kozár, F. 1988. Scale Insects of Central Europe. Budapest : Akadémiai Kiado 456 pp. [453] (Chorizococcus rostrellum: misspelling of species name)

Common Name References

McKenzie, H.L. 1967. Mealybugs of California with taxonomy, biology, and control of North American species (Homoptera: Cooccoidea: Pseudococcidae). Berkeley : Univ. Calif. Press 526 pp. (cited also by ) (Bermuda Grass Mealybug)

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