Common cockchafer

10 to 20 mm in the first autumn, 30 to 35 mm by the following autumn, and 40 to 46 mm in the spring of their third year. The pupa is 25 to 35 mm long and [...] instars, a pupal instar and the adult beetle. The adult beetle is 25 to 30 mm long, with a dark head, black pronotum covered with short hairs, and reddish [...] the oval eggs of the common cockchafer ( Melolontha melolontha ) are 2 x 3 mm, but they increase in size by absorbing water. The larvae (grubs) have a whitish

Spotted Wing Drosophila

drosophila Adult spotted-wing drosophila are small, 2-3 mm in lengthg, and have a wingspan of 6-8 mm. Males are smaller than females. They can be easily [...] in the third instar the larvae are about 3.9 mm long. The pupae of Drosophila suzukii are tan-brown and 3 mm long. Contrary to other Drosophila species [...] fruit and for laying the egg into the fruit. Eggs are white, 0.6 long and 0.2 mm wide. Each egg has two respiratory tubes which stick out of the fruit. There

House fly

between 25–30°C. The small (1.2 mm), white eggs will only hatch if they remain moist, and creamy-white larvae (3–9 mm long) with a single pair of dark [...] and appearance of House fly The adult house fly ( Musca domestica ) is 6–7 mm long, yellowish-grey to dark grey in colour, with four narrow black stripes [...] hours. The maggots pass through three larval instars until fully grown (7–12 mm), at which point they crawl to a cool, dry place near the breeding site to

Black vine weevil

they feed on the roots. They are legless, roughly 1 mm long at hatching, but grow to approximately 12 mm. A larva is often curled into the typical C-shape [...] the first adult weevils appear around May. They are approximately 7 - 10 mm long, brownish black and have dull yellow spots on their back. The wing covers [...] in vegetation and under planks etc . In temperate climates, the small (0.7 mm diameter), spherical white eggs are laid from the beginning of July until

Fall Armyworm

Life cycle of the Fall Armyworm Adult moths are 20 to 25 mm long and have a wingspan of 32-38 mm. They are nocturnal and most active during the warm, humid [...] laid on the underside of the leaves. The larvae ( caterpillars ) are 30-40 mm long. They have six instars that vary in colour from light tan to green to [...] surface of the last segment. Pupae are reddish brown and measure 13 to 17 mm in length. The eggs hatch after 3-5 days. Over the next 2 to 3 weeks, the

Sciarid flies

(0.1 to 0.25 mm) and yellowish white in colour. They are laid on the ground surface close to plant roots. The larvae can grow to 5 to 12 mm in length and [...] larval instars, a pupal instar, and the adult. The adult insects are 1 to 5 mm long, grey-black flies with long antennae. They have relatively long legs [...] and 0.5 to 1.5 mm in diameter. They are legless and have a conspicuous black head. The head is equipped with biting-chewing mouth parts. Pupation takes

Chrysoperla carnea

outer cocoon is 8 mm long and 4 mm thick. The inner more closely spun cocoon is off-white and egg-shaped, about 3 mm long and 2.5 mm thick. The space between [...] stalk. Larval stage: Green lacewing larvae of Chrysoperla carnea are 2-10 mm long. They have large, forwardly projecting jaws and well-developed legs. [...] places, and even on the ground. Adult stage: Adult green lacewings are 23-30 mm long, slender, yellow-green in colour, with a yellow-white dorsal stripe,

Stable fly

cycle and appearance of the Stable fly Adult stable flies are between 5–7 mm in size and largely resemble the house fly , even having a four-striped thorax [...] oviposit for the first time). After mating the females lay their small (~1 mm long), white, sausage-shaped eggs (singly, or in bunches of 25–30) in humid [...] from the eggs in 1–4 days. They are typical maggots ranging in size from 5–12 mm long, and they pass through three larval instars within 10–30 (or more) days

Tomato russet mite

of legs, whereas other mite groups have four pairs. Eggs are roughly 0.05 mm in diameter and are laid on the underside of leaves, on leaf petioles, and [...] stage). The first nymphal stage is a transparent white colour and about 0.1 mm long. They usually develop to the 2nd stage within a day. All life stages [...] cream to orange-yellow in colour, wedge-shaped and very small (roughly 0.17 mm in length), with males being slightly smaller than the females.

Cotton leafworm

littoralis) can lay up to 3,000 eggs. Each egg is roughly spherical, about 0.6 mm long and whitish yellow. They are laid in clusters of 20 to 500 pieces on [...] pale green with a brownish head. In the last larval stage, they are 35 to 45 mm long. Coloration varies from grey to reddish or yellowish, with a median dorsal [...] crawl to the ground and settle in the surface layers. The pupa is 15 to 20 mm long and reddish brown in colour. The forewings of the adult cotton leafworm