Dactylopius coccus and Scale insect

Dactylopius coccus noun - Mexican red scale insect that feeds on cacti; the source of a red dye.

Scale insect and Dactylopius coccus are semantically related. In some cases you can use "Scale insect" instead a noun phrase "Dactylopius coccus".

Scale insect noun - Small homopterous insect that usually lives and feeds on plants and secretes a protective waxy covering.

Dactylopius coccus and scale insect are semantically related. Sometimes you can replace phrase "Dactylopius coccus" with "Scale insect", this phrases are similar.