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Mosquitoes

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Mosquitoes are small insects with elongated bodies and a pair of V-shaped, forward pointing antennae. The males’ antennae are bushier than the females’.

These insects also have a characteristic long proboscis. Females have very sharp mouthparts for piercing the skin of vertebrates from which they suck blood. Males do not bite and their mouthparts are not as rigid.

Fruit flies

English
Drosophila melanogaster

These are small brownish-yellow insects about 3 to 4 mm long. Their compound eyes are bright red. They have two broad, oval wings and dark bands on their short abdomen. Males have a dark, rounded extremity, and females have a lighter, pointed one. Males are smaller than females.

Pharaoh ants

English
Monomorium pharaonis

These are very small ants, varying in colour from pale yellow to brown, with a darker abdomen. The petiole, the part that gives ants their slender waists, has two small nodes.

Adults in the colony belong to different castes. Workers are sterile females from 1.5 to 2.5 mm long. Queens, larger and darker, are from 3.5 to 5 mm. A single colony may have several queens. Males are about 2.8 mm long. Queens and adult males have wings when they emerge.

Carpenter ants

English
Camponotus spp.

Carpenter ants are black, tinged with red or brown depending on the species. Males are 9 to 10 mm long, with small heads and two pairs of wings. Females are either queens or workers. Future queens have wings.

The queen is usually much larger than the workers, with a well-developed abdomen.

Workers are from 6 to 13 mm long. Their appearance differs depending on their role: nurses, scouts, soldiers, etc.

Phyllium sp.

English

Description

Leaf insects in this species resemble leaves in colour and shape. These phenomena are referred to as homochromatism (same colour) and homotype (same shape). Males are about 5 cm long, and females are 8 cm long and wider than males. The wings make it easy to distinguish the sexes. The first pair of wings on males is quite small, while the second pair is long and developed for flight. The opposite is true for females: the second pair is smaller and the first pair covers the entire body; they are unable to fly. Females also have shorter antennae, whereas males’ antennae are long and thin.

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