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. 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.
Well-known species include:
- Abgrallaspis cyanophylli, the cyanophyllum scale
- Aonidiella aurantii, the California red scale
- Aulacaspis yasumatsui, the cycad aulacaspis scale
- Lepidosaphes beckii, the citrus mussel scale
- Lepidosaphes ulmi, the oystershell scale
- Diaspidiotus perniciosus, the San Jose scale
- Борхсениус (Borchsenius), Н. С. (N. S.) (1966). Каталог щитовок (Диаспидоидеа) мировой фауны (A catalogue of the armoured scale insects (Diaspidoidea) of the world) (in Russian). Moscow: Академия наук СССР – Зоологический институт (Zoological Institute of the USSR Academy of Sciences).
- Howard, Forrest D. (2001). "Hemiptera: Sternorrhyncha". In Howard, Forrest D. et al.. Insects on Palms. Wallingford, Oxfordshire: CABI Publishing. pp. 161–226. ISBN 978-0-85199-326-3.
- Takagi, Sadao (2002). "One new subfamily and two new tribes of the Diaspididae (Homoptera: Coccoidea)". Insecta Matsumurana 59: 55–100. Archived from the original on 28 December 2013.