Species Eriococcus crofti Froggatt, 1916
- Eriococcus crofti Froggatt, W.W. 1916. A descriptive catalogue of the scale insects (Coccidae) of Australia. (Part II [in part]). Agricultural Gazette of New South Wales 27: 425-430, 568-577, 809-816, 883-888 [430].
Ecological Descriptors
Sap-feeder.
ID Keys
(Gullan, P.J. & Vranjic, J.A., 1991) [26] (adult female; Australian species of Eriococcus on Eucalyptus)
GENERAL
Detailed description and illustration by Froggatt, W.W. 1916. A descriptive catalogue of the scale insects (Coccidae) of Australia. (Part II [in part]). Agricultural Gazette of New South Wales 27: 425–430, 568–577, 809–816, 883–888; Froggatt, W.W. 1921. A descriptive catalogue of the scale insects (Coccidae) of Australia. (Part II [Concl.]). Science Bulletin, Department of Agriculture, New South Wales 18: 1–159.
SYSTEMATICS
Slide-mounted adult female with: distinct marginal row of enlarged setae (see Gullan, P.J. & Vranjic, J.A. 1991. The taxonomy of the gum tree scales Eriococcus confusus Maskell and E. coriaceus Maskell (Hemiptera: Coccoidea: Eriococcidae). General and Applied Entomology 23: 21–40).
STRUCTURE
Adult female pear-shaped and reddish brown in color. Sacs are formed half buried in the cracks of the bark, are irregular in form and brown in color (see Froggatt, W.W. 1916. A descriptive catalogue of the scale insects (Coccidae) of Australia. (Part II [in part]). Agricultural Gazette of New South Wales 27: 425–430, 568–577, 809–816, 883–888).
ECONOMIC AND CONTROL
Adult infestation causes bark to crack, flake and become greasy looking and blackened (see Froggatt, W.W. 1916. A descriptive catalogue of the scale insects (Coccidae) of Australia. (Part II [in part]). Agricultural Gazette of New South Wales 27: 425–430, 568–577, 809–816, 883–888).