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The female is slightly larger than the male in larva form, and as an adult finds a mate by extruding an organ that emits a pheromone which the male can smell. The male, which unlike the female has the large, feathered antennae characteristic of pheromone-using moths, flies zigzag search patterns, eventually homing in on a female.
Gynaephora groenlandica, the Arctic woolly bear moth, is an erebid moth native to the High Arctic in the Canadian archipelago, Greenland and Wrangel Island in Russia. [2] [4] It is known for its slow rate of development, as its full caterpillar life cycle may extend up to 7 years, with moulting occurring each spring. [5]
The following description of the tent caterpillar life cycle is based on that of the eastern tent caterpillar, the best-known species. The details of the life histories of other species vary to a small extent. Tent caterpillars hatch from their eggs in the early spring at the time the leaves of their host trees are just unfolding.
Achaea janata, the castor semi-looper or croton caterpillar, is an erebid moth, the caterpillars of which are termed 'semi-loopers' due to their mode of locomotion. It is found from the Indo-Australian tropics and subtropics, extending south to New Zealand and east through the Pacific archipelagoes to Easter Island . [ 2 ]
The Coconut black headed caterpillar (Opisina arenosella), is a species of moth found in throughout East Asian countries including Bangladesh, India, Sri Lanka, Myanmar, as well as Indonesia. It is considered a pest of coconut palm trees, causing considerable damage to the trees, and reducing the plant's yield significantly and can be a major ...
Euproctis lunata, the castor hairy caterpillar, is a moth of the family Erebidae. The species was first described by Francis Walker in 1855. [ 1 ] It is found in India , Pakistan , Sri Lanka [ 2 ] [ 3 ] and Thailand .
The caterpillar is a serious pest that attacks more than 30 crops. The larva bores into the trunk or branches about 15–25 cm deep. The tunnel created is empty in the day time, but is filled with caterpillar during the night. It damages the bark of the tree resulting in dieback of the stem. Frass is visible in affected areas. [4]
Throughout its life as a larva the saddleback caterpillar will go through a series of growths and molts. During the period between each molt the larva is regarded as an instar to indicate its progression into adulthood. The first instar: Caterpillar larvae vary in size and are capable of being between 1.5-2.0mm in length. [3]
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