Carulaspis minima is an armoured scale insect, in the subtribe Diaspidina of the family Diaspididae, and is commonly known as the minute cypress scale.^[1] It was first described in 1869 by the French entomologist Victor Antoine Signoret. It feeds on evergreen conifers in the families Cephalotaxaceae, Cupressaceae and Taxodiaceae.^[2]

Quick Facts Carulaspis minima, Scientific classification ...

Carulaspis minima
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Suborder:	Sternorrhyncha
Family:	Diaspididae
Subtribe:	Diaspidina
Genus:	Carulaspis
Species:	C. minima
Binomial name
Carulaspis minima (Signoret, 1869)
Synonyms
Carulaspis caruelii Borchsenius, 1966 Carulaspis carueli Baccetti, 1960 Diaspis visci Leonardi, 1920 Diaspis minima Signoret, 1869 Diaspis carueli Signoret, 1869 Diaspis minima Targioni Tozzetti, 1868 Diaspis caruelii Targioni Tozzetti, 1868

Close

Carulaspis minima grows to a maximum length of about 1.8 mm (0.07 in). The scale covering the adult female is circular and convex, white with a yellowish-brown central portion; the female nymph is similar, but smaller. The adult male has an elongate whitish scale with the yellowish-brown remnants of the exuviae on the posterior end. The male nymph has a whitish felt-like appearance with longitudinal ridges. It is very difficult to distinguish it from the juniper scale (Carulaspis juniperi).^[1]

The adult female scale overwinters on the host tree and lays a batch of eggs which are retained under the scale. These hatch into "crawlers", nymphs which are mobile and move to other parts of the plant. After shedding their skin for the first time, the nymphs settle down and grow through the summer. After reaching adulthood they mate, after which the males die. In California there are one or two generations in the year.^[1]

Carulaspis minima feeds on the twigs and foliage of conifers. The insects are herbivorous, feeding on phloem sap sucked from the plant's vascular system. In severe infestations the foliage may become discoloured or die, but more often the population of scale insects is kept in check by their natural enemies in the form of predatory lady beetles and parasitoid wasps, which feed on them and kill them.^[1]