Global menu

Insecta

English

Virescent green metallic bee

English
Agapostemon virescens

These bees are recognizable by their metallic green head and thorax. The eyes are droplet shaped, and their antennae are highly visible. The female’s abdomen is black, with bands of white hair, while the male’s is black with hairless bands. Their translucent wings are slightly smoke-coloured or amber.

The males are 10 mm long and the females, 11 mm.

Giant ichneumon

English
Megarhyssa atrata

These insects look like large, slender wasps. They have a yellow head with a dark stripe between the eyes. The thorax and abdomen are dark, either black or dark brown. Their long legs are mainly yellow, while their four elongated, narrow wings are almost black.

Females have an impressive 12- to 15-cm long dark brown ovipositor.

This species resembles two other ichneumons found in the same habitat in Quebec: Megarhyssa macrurus and M. greenei. Giant ichneumons are recognizable by their blackish-brown abdomens. In addition, they have the longest ovipositors.

Ichneumon wasps

English

These insects generally resemble wasps, but their antennae are longer and more segmented.

In many species, the female’s abdomen ends in a filament even longer than the rest of the body. This egg-laying organ is called an ovipositor.

The vast ichneumon group comprises thousands of species, ranging widely in size (from 3 to 50 mm long) and coloration. Many are a single colour, varying from yellowish to black, while others are bicoloured, black and brown or black and yellow.

Digger wasps

English

These insects vary greatly in size, but all have narrow “thread-like” waists. They have an effective stinger at the tip of their abdomens and are solitary hunters.

The larvae are legless. 

Until recently, the Crabronidae were included in the Sphecid family of wasps, as they are all fairly similar in appearance and behaviour. The Crabronidae are now considered a separate family.

 

Monarch

English
Danaus plexippus

The monarch is one of Quebec’s largest diurnal butterflies. It has orange wings with black veins and a wingspan of 9.3 to 10.5 cm. This butterfly is famous for the spectacular migration that eastern North American populations undertake each autumn to Mexico.

The male can be distinguished from the female by two small black spots on the hindwings. In addition, the black bands on the wings of the female are wider than those of the male.

Ecological role

These butterflies help to pollinate various nectar-bearing plants as they browse on their flowers.

Click beetles

English

Click beetles have slender bodies that are elongated and parallel-sided. They are usually brown or black in colour, and some have markings on their back. The posterior corners of their pronotum (area behind the head) extend backward and end in sharp points. A few species have large eye spots on the pronotum.

The larvae, called wireworms, are slender and hard shelled.

Crickets

English

Crickets are black or brown insects over 13 mm long. They have long antennae, two compound eyes and grinding mouthparts. They have two pairs of many-veined wings on the thorax. The forewings are fairly tough. They protect the membranous hindwings, which are folded in a fan shape when at rest. Of the three sets of legs, the hindmost legs are the most noticeable, since they are adapted for jumping. Their femurs are particularly strong. Crickets have two sensory appendages called cerci at the tip of the abdomen.

Females have an ovipositor, a long cylindrical egg-laying organ, between the cerci.

Cicadas

English

Cicadas are often large insects from 25 to 50 mm long. Their bodies are generally black, brown or green, with markings of different shapes and colours depending on the species.

A cicada’s wide head is flattish in front, with a pair of large eyes, three small eyes (ocelli), two short antennae and piercing-sucking mouthparts.

There are two pairs of transparent, membranous wings on the thorax. The forewings are about twice as long as the hindwings.

Subscribe to RSS - Insecta