Species Trionymus diminutus (Leonardi, 1918)

Museums

Regional Maps

• Pseudococcus diminutus Leonardi, G. 1918. Terza contribuzione alla conoscenza delle cocciniglie Italiane. Bollettino del Laboratorio di Entomologia Agraria 'Filippo Silvestri', Portici 12: 188-216 [198].

Generic Combinations

• Trionymus diminutus (Leonardi, 1918).

Ecological Descriptors

Sap-feeder.

ID Keys

(Tang, F.T., 1992) [153] (female; Palaearctic Region); (Cox, J.M., 1987) [20] (female; New Zealand); (Williams, D.J., 1985) [366] (female; Australia); (Miller, D.R. & McKenzie, H.L., 1973) [532] (female; North America); (McKenzie, H.L., 1967) [461] (female; U.S.A., California); (Williams, D.J., 1962) [61] (female); (McKenzie, H.L., 1961) [48] (female; North America); (McKenzie, H.L., 1960) [765] (female; North America); (Ferris, G.F., 1953) [483] (female; North America); (Ferris, G.F., 1950) [252] (female; North America); (Borchsenius, N.S., 1949) [96] (female; Palaearctic Region)

ECONOMIC AND CONTROL

Natural enemies listed by Borchsenius, N.S. 1949. Insects Homoptera. suborders mealybugs and scales (Coccoidea). Family mealybugs (Pseudococcidae). Vol. VII. Fauna SSSR. Zoologicheskii Institut Akademii Nauk SSSR 38: 1–382.

GENERAL

Good description and illustration of the adult female given by Leonardi, G. 1920. Monografia delle cocciniglie Italiane. Portici : Della Torre 555 pp., Morrison, H. 1925. Classification of scale insects of the subfamily Ortheziinae. Journal of Agricultural Research 30: 97–154, 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. and by Cox, J.M. 1987. Pseudococcidae (Insecta: Hemiptera). In, Duval, C.T. (ed). Fauna of New Zealand. Wellington, New Zealand : DSIR Science Information Publishing Centre Vol. 11 229 pp..Good description of the adult female given by Borchsenius, N.S. 1949. Insects Homoptera. suborders mealybugs and scales (Coccoidea). Family mealybugs (Pseudococcidae). Vol. VII. Fauna SSSR. Zoologicheskii Institut Akademii Nauk SSSR 38: 1–382 and by Tang, F.T. 1992. [The Pseudococcidae of China]. Taigu, Shanxi, China : Shanxi Agricultural University 768 pp..

SYSTEMATICS

The records of this species from Formosa by Takahashi, R. 1928. Coccidae of Formosa. The Philippine Journal of Science 36: 327–347 and Takahashi, R. 1928. Coccidae of Formosa (2). Transactions of the Natural History Society of Formosa 18: 253–261 probably refer to Dysmicoccus boninsis.

General References

Ferris, G.F. 1918. The California species of mealy bugs. Stanford University Publications, University Series 1918: 1-78 [67] (Trionymus calceolariae: misidentification)

Maskell, W.M. 1884. Art. V. – Further notes on Coccidae in New Zealand, with descriptions of new species. Transactions and Proceedings of the New Zealand Institute 16: 120-144 [138] (Dactylopius calceolariae: misidentification)

Common Name References

Naumann, I.D., Ingram, R.J. & Floyd, R. 2002. Australian Insect Common Names, based on CSIRO Handbook of Australian Insect Names. 6th edn 1993. http://www.ento.csiro.au/aicn/. (New Zealand Flax Mealybug)

History of changes