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Eyes range in size, being either medium to large, with more than six facets (lenses that make up the compound eye of an insect). The dorsum of the mesosoma has distinct metanotal grooves and lack erect hairs. The propodeum has a distinct protrusion which causes the slope to be strongly concave. The ant's waist has only one segment.
Black garden ant with the mandibles of an unindentified creature. The black garden ant ( Lasius niger ), also known as the common black ant , is a formicine ant , the type species of the subgenus Lasius , which is found across Europe and in some parts of North America , South America , Asia and Australasia .
Ochetellus is a genus of ants first described by Steve Shattuck in 1992. He placed it in the subfamily Dolichoderinae of the family Formicidae.The ants in this genus are small and black in colour; workers measure 1.75 to 3 millimetres (0.07 to 0.12 in) in length, the males at around 1.6 millimetres (0.06 in) are smaller, and the queens are the largest, reaching 4 millimetres (0.16 in).
The eyes are elliptical and set far back on the head. It has no sting, but the ant can bite and then curve its abdomen forwards and secrete formic acid onto its prey. [2] They are too feeble to harm humans. A characteristic of this ant is the way that the workers move around jerkily in apparently random directions, whence their common name. [1]
The ketone octan-3-one is seen as the major component of the pheromone complex secreted from the heads of C. peringueyi. [3] The sting or venom gland of other ant species has evolved in C. peringueyi into a gland secreting a smelly and irritant fluid, which, together with the ant's painful bite, is a strong deterrent to predation or attack.
The little black ant (Monomorium minimum) is a species of ant native to North America. [1] It is a shiny black color, the workers about 1 to 2 mm long and the queens 4 to 5 mm long. It is a monomorphic species, with only one caste of worker, and polygyne , meaning a nest may have more than one queen.
Colonies of real army ants always have only one queen, while some other ant species can have several queens. The queen is dichthadiigyne (a blind ant with large gaster) but may sometimes possess vestigial eyes. [5] The queens of army ants are unique in that they do not have wings, have an enlarged gaster size and an extended cylindrical abdomen ...
Like most insects, ants have compound eyes made from numerous tiny lenses attached together. Ant eyes are good for acute movement detection, but do not offer a high resolution image. They also have three small ocelli (simple eyes) on the top of the head that detect light levels and polarization. [43]