Diaspididae is the largest family of scale insects with over 2650 described species in around 400 genera. As with all scale insects, the female produces a waxy protective scale beneath which it feeds on its host plant. Diaspidid scales are far more substantial than those of most other families, incorporating the exuviae from the first two nymphal instars and sometimes faecal matter and fragments of the host plant.[1] These can be complex and extremely waterproof structures rather resembling a suit of armor. For this reason these insects are commonly referred to as armored scale insects. As it is so robust and firmly attached to the host plant, the scale often persists long after the insect has died.

Diaspididae
Three species of armored scales
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Sternorrhyncha
Superfamily: Coccoidea
Family: Diaspididae
Maskell, 1878
Subfamilies

Some African Diaspididae are attended by ants of genus Melissotarsus. The ants appear to consume the armored scales because Diaspididae are completely naked when ant-attended; the ant nest itself remains completely hidden under the bark of the tree.[2]

Selected species

edit

Notable species include:

Genera

edit

The majority of genera are in the Aspidiotinae and Diaspidinae; other subfamilies contain:

Comstockiellinae

edit

Ulucoccinae

edit

Xanthophthalminae

edit

References

edit
  1. ^ Miller, Douglass R.; Davidson, John A. (2005). Armored Scale Insect Pests of Trees and Shrubs (Hemiptera : Diaspididae). Cornell University Press. p. 1. ISBN 0-8014-4279-6.
  2. ^ Delabie, J.H.C. (2001). "Trophobiosis between Formicidae and Hemiptera (Sternorrhyncha and Auchenorrhyncha): an overview". Neotropical Entomology. 30 (4): 501–516. doi:10.1590/S1519-566X2001000400001.
edit