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Pharaoh ant workers have a non-functional stinger used to generate pheromones. [5] The petiole (narrow waist between the thorax and abdomen) has two nodes and the thorax has no spines. Pharaoh ant eyesight is poor and they possess on average 32 ommatidia. [6] The antennal segments end in a distinct club with three progressively longer segments.
Whether you feed the birds or not, chances are that you have some of nature’s pests in your back yard. They could be of the animal nature or even plants that quietly can take over your yard!
The most famous species in the genus Monomorium is the highly invasive pharaoh ant, Monomorium pharaonis. It is a parasitic ant that has no worker caste. The queen enters the colony of a different species and, probably by employing a pheromone, she forces the host workers to kill their queen. She then uses these workers as slaves to bring up ...
The tropical wasp Mischocyttarus drewseni coats the pedicel of its nest with an ant-repellent chemical. [186] It is suggested that many tropical wasps may build their nests in trees and cover them to protect themselves from ants. Other wasps, such as A. multipicta, defend against ants by blasting them off the nest with bursts of wing buzzing. [187]
Ant colonies have a complex social structure. Ants’ jobs are determined and can be changed by age. As ants grow older their jobs move them farther from the queen, or center of the colony. Younger ants work within the nest protecting the queen and young. Sometimes, a queen is not present and is replaced by egg-laying workers.
Most ants of this genus nest in rotting wood, under rocks, or in the soil. [2] Some species are scavengers, while others are seed collectors. [8] Many species have venom containing alkaloids, which they use as a defense from predators. [9] Besides its morphological variation, the genus is also variable in chromosome number, with 2n of 16 to 70 ...
One of the most common ways to get rid of the ants is to put oil or grease in the middle of the ant trap. However, this is a hit-or-miss method, because too little grease will not attract the ants, and too much will limit the effectiveness of the trap. The ants also appear to be resistant to most insecticides.
A black garden ant (Lasius niger) engaging in necrophoresis. Necrophoresis is a sanitation behavior found in social insects – such as ants, bees, wasps, and termites – in which they carry away the dead bodies of members of their colony from the nest or hive area.