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Family Rhinotermitidae

Members of this family are classified as subterranean termites. have 4 tarsal segments, cerci with 2 segments, flat pronotums, and their fontanelle is present. Furthermore, members of this family have true worker castes.

Genus: Coptotermes

Identification

Soldiers in this genus are 4.0–6.5 mm in length and are mandibulate. They have pear-shaped heads with a round white pore on their “forehead” called the fontanelle — sometimes you would see a white milky secretion from it, which is actually toxins released from the frontal gland located inside their heads. It is mainly used for defence against predators and intruders in the colony. Their mandibles are smooth with no serrations or “teeth”. 

Identification of species often requires a specialist; it is difficult to identify a species only with the soldier caste. However, it can be possible if nesting habits and area of occurrence is also known. 

Coptotermes Species

Coptotermes acinaciformis
Coptotermes lacteus
Coptotermes frenchi
Coptotermes brunneus
Coptotermes michaelseni
Coptotermes raffrayi
Coptotermes dreghorni

Click here to see the Comparison Between Coptotermes acinaciformis, Coptotermes frenchi, and Coptotermes lacteus

Distribution

There are several species of Coptotermes present in Australia. The distribution of those found in Queensland is summarized in the table below. 

SpeciesDistribution
Coptotermes acinaciformisWidespread in all states
Coptotermes frenchiQueensland, New South Wales, Victoria, and South Australia 
Coptotermes lacteusSouthern Queensland, New South Wales, Victoria, and the Australian Capital Territory
Coptotermes brunneusWestern Australia
Coptotermes michaelseniWestern Australia
Coptotermes dreghorniNorthern Queensland
Coptotermes raffrayiWestern Australia

Habitat and Behaviour

Most species of this genus make big nests with around 500,000 individuals. Depending on the species, their nests can either be found inside root crown of trees or underground. Coptotermes acinaciformis is the most destructive species in this genus.