Stictococcidae is a family of

scale insect Scale insects are small insects of the Order (biology), order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient g ...

s commonly known as stictococcids. There are three

genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...

containing about seventeen

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

and members of this family are found only in

Afrotropical The Afrotropical realm is one of the Earth's eight biogeographic realms. It includes Sub-Saharan Africa, the southern Arabian Peninsula, the island of Madagascar, and the islands of the western Indian Ocean. It was formerly known as the Ethiopi ...

regions.UDSA Agricultural Research Service

Hosts

Members of this family have been recorded on thirty-eight different plant families, including various agricultural crops, but are most common on plants in the families,

Annonaceae The Annonaceae are a Family (biology), family of flowering plants consisting of trees, shrubs, or rarely lianas commonly known as the custard apple family or soursop family. With 108 accepted genera and about 2400 known species, it is the largest ...

Euphorbiaceae Euphorbiaceae (), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of Euphorbia, the type genus of the family. Most spurges, such as ''Euphorbia paralias'', ar ...

Fabaceae Fabaceae () or Leguminosae,International Code of Nomen ...

and

Sterculiaceae Sterculiaceae was a family of flowering plant based on the genus '' Sterculia''. Genera formerly included in Sterculiaceae are now placed in the family Malvaceae, in the subfamilies: Byttnerioideae, Dombeyoideae, Helicteroideae and Sterculioide ...

Description

Adult female stictococcids are similar in appearance to soft scales in the family

Coccidae Coccidae, from Ancient Greek (''kókkos''), meaning "kernel" or "Kermes (insect), Kermes", are a family of scale insects belonging to the superfamily Scale insect, Coccoidea. They are commonly known as soft scales, wax scales or tortoise scales ...

. They are nearly circular, flattened dorsally and have turned up margins. The segments are conspicuous, particularly near the rim. There are small, pale coloured legs and antennae on the underside. The body is covered in

seta In biology, setae (; seta ; ) are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Depending partly on their form and function, protostome setae may be called macrotrichia, chaetae, ...

e which are longer at the periphery.

Life cycle

Stictococcids have three female

instar An instar (, from the Latin '' īnstar'' 'form, likeness') is a developmental stage of arthropods, such as insects, which occurs between each moult (''ecdysis'') until sexual maturity is reached. Arthropods must shed the exoskeleton in order to ...

s and five male instars. The first instars are sexually dimorphic, with the females having the

anus In mammals, invertebrates and most fish, the anus (: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the ''exit'' end of the digestive tract (bowel), i.e. the opposite end from the mouth. Its function is to facil ...

in the center of the body and having well-developed mouthparts, whereas the males have the anus near the posterior end of the body and have no mouthparts.Richard, C. 1971. ''Contribution à l'étude morphologique et biologique des Stictococcinae (Hom. Coccoidea).'' (In French).

Annales de la Société Entomologique de France Annals are a concise form of historical writing which record events chronologically, year by year. The equivalent word in Latin and French is ''annales'', which is used untranslated in English in various contexts. List of works with titles contai ...

7: 571-609 Most species are associated with

ant Ants are Eusociality, eusocial insects of the Family (biology), family Formicidae and, along with the related wasps and bees, belong to the Taxonomy (biology), order Hymenoptera. Ants evolved from Vespoidea, vespoid wasp ancestors in the Cre ...

s who feed on the honeydew they produce.

Genera

* '' Hockiana'' * '' Parastictococcus'' * '' Stictococcus''

References

Scale insects Hemiptera families Neococcoids {{Coccoidea-stub