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The act of spawning itself is called a "nuptial embrace", for the male wraps his body around the female; around 10–40 eggs are released during each embrace, until the female is exhausted of eggs. With each deposit of eggs, the male releases milt into the water, and fertilisation takes place externally. During and after spawning, the male uses ...
P. rapae is known to lay eggs singularly on the host plant. The egg is characterized by a yellowish color and 12 longitudinal ridges. [13] The egg production peaks about a week after adulthood in lab and the female can live up to 3 weeks. Females tend to lay fewer eggs on plants in clumps than on isolated plants.
Adult moths fly at dusk. [2] Like other Sphingidae, adult pandora sphinx moths have a long proboscis that is used to feed on nectar. [4] Females lay translucent eggs singly [10] on leaves of the host plant, mainly Vitis spp. (grapes), Ampelopsis spp. (peppervine) and Parthenocissus quinquefolia (Virginia creeper). [11]
The peaceful betta or crescent betta (Betta imbellis) is a species of gourami native to Southeast Asia. Betta imbellis has a pair of suprabranchial chambers that each house a labyrinth organ, a complex bony structure lined with thin, highly vascularised respiratory epithelium. The labyrinth organ is a morpho‐physiological adaptation that ...
The fall webworm (Hyphantria cunea) is a moth in the family Erebidae known principally for its larval stage, which creates the characteristic webbed nests on the tree limbs of a wide variety of hardwoods in the late summer and fall. It is considered a pest but does not harm otherwise healthy trees.
Betta pallifina are a mouthbrooding species of betta. The male is the caretaker, holding the fry in his mouth for up to three weeks. In captivity, these fish are very easy to breed. During spawning, which can take several hours, the male embraces the female. Fertilized eggs are gathered into the male's mouth and he retreats to brood the fry ...
Eggs are generally laid on a submerged log or a flattened leaf. As is the case for other cichlids, brood care is highly developed. As is the case for other cichlids, brood care is highly developed. Pterophyllum should not be confused with marine angelfish , perciform fish found on shallow ocean reefs .
Sawflies are wasp -like insects that are in the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay their eggs. The name is associated especially with the Tenthredinoidea, by far the ...