Valid Names Results
Cystococcus pomiformis (Froggatt, 1893) (Eriococcidae: Cystococcus)Nomenclatural History
- Brachyscelis pomiformis Froggatt 1893: 367. Type data: AUSTRALIA: North Western Australia, Barrier Range, King's Sound, on Eucalyptus sp., by W.W. Froggatt; also from Northern Queensland, Torrens' Creek, near Charters Tower, on Eucalyptus sp., by Chisholm. Syntypes, female, Type depository: Orange: Agricultural Scientific Collections Unit, Orange Agricultural Institute, NSW, Australia; accepted valid name Notes: Two syntypic galls in ASCT (Gullan, personal communication, June 10, 1996).
- Apiomorpha pomiformis (Froggatt, 1893); Cockerell 1896b: 328. change of combination Illustr.
- Cystococcus pomiformis (Froggatt, 1893); Froggatt 1921a: 156-157. change of combination Illustr.
- Ascelis pomiformis (Froggatt, 1893); Lindinger 1957: 545. change of combination Notes: Change not accepted by subsequent authors (Semple, et al., 2015).
Common Names
Ecological Associates
Hosts:
Families: 1 | Genera: 2
- Myrtaceae
- Corymbia chippendalei | SempleGuHo2015
- Corymbia clarksoniana | SempleGuHo2015
- Corymbia dichromophloia | Hoy1963
- Corymbia foelscheana | SempleGuHo2015
- Corymbia greeniana | SempleGuHo2015
- Corymbia lenziana | SempleGuHo2015
- Corymbia polycarpa | SempleGuHo2015
- Corymbia ptychocarpa | SempleGuHo2015
- Corymbia terminalis | SempleGuHo2015
- Eucalyptus | Hoy1963
Geographic Distribution
Countries: 1
- Australia
- Queensland | Frogga1893
- South Australia | Hoy1963
- Western Australia | Fuller1899
Keys
- Hodgso2020: pp.84 ( Adult (M) ) [Cystococcus species]
- SempleGuHo2015: pp.295-296 ( Adult (F) ) [Key to species of Cystococcus]
- SempleGuHo2015: pp.296 ( Adult (M) ) [Key to species of Cystococcus]
Remarks
- Systematics: Adult females of C. pomiformis have a convex button, varying from broad and dome-shaped to pointy and conical, but easily distinguishable from those of C. echiniformis (concave ended) and C. campanidorsalis (bell-shaped).
- Structure: Female gall is apple shaped, slightly depressed at the base where attached to the host, swelling out on the sides, greyish brown in color (Froggatt, 1893). Gall is often very large, sometimes up to 10cm in diameter (Gullan, personal communication, 1998). Galls sub-spherical (mean height : diameter ratio = 1 : 1.14), but shape variable and often deformed, usually with an uneven or lumpy surface; height 10–80mm (mean = 36.5 mm), diameter 13–90mm (mean = 41.5 mm) and side wall thickness 4–18mm (mean = 7 mm), usually widest at mid-point, but sometimes pear-shaped. Opening typically recessed into center of a raised, circular lip at terminal apex. Gall surface pale and creamy in colour when insect is alive, but darkens and can become very knobbled on surface once inhabitant dies. (Semple, et al., 2015)
- Biology: The gall inner wall and enclosed insect are edible (Froggatt, 1893).
- General Remarks: Most detailed description and illustration by Froggatt (1893). This species is distributed in the northern parts of the Western and territories of the country (Froggatt, 1893). Redescription and illustrations of adult female, adult male and first and second instar males in Semple, et al., 2015.
Illustrations
Citations
- Beards1984: behavior, taxonomy, 84
- ClelanJo1933: host, 122
- Cocker1896b: taxonomy, 328
- Fernal1903b: distribution, 48
- Frogga1893: description, distribution, host, illustration, taxonomy, 367
- Frogga1894c: taxonomy, 111
- Frogga1898a: description, distribution, taxonomy, 492
- Frogga1907: description, taxonomy, 382
- Frogga1921a: description, distribution, host, illustration, taxonomy, 156-157
- Fuller1897b: distribution, host, taxonomy, 1346
- Fuller1899: taxonomy, 445, 463
- Grant1965: description, host, 68
- GullanCo1986: biology, illustration, taxonomy, 632-633
- Hodgso2020: key, 84
- Houard1923: host, 609, 610
- Hoy1963: catalog, distribution, host, taxonomy, 47
- Kozar2009: distribution, taxonomy, 97
- Lindin1957: taxonomy, 545
- Meyer1987: physiology, 135
- MillerGi2000: catalog, description, distribution, host, taxonomy, 96-97
- Pierce1917: distribution, economic importance, host, 99
- Tepper1893: distribution, host, 272
- Tillya1926: biological control, distribution, host, taxonomy, 173
- Weidne1974: taxonomy, 462
- Willia2017a: catalog, list of species, 237