| The number of clutches of eggs, larvae in each instar, pupae, and new adults emerging in the next generation were recorded. |
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| In these studies, stomachs from 4th instar A. aegypti larvae were examined using both transmission and scanning electron microscopy. |
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| For immunolabeling, third instar mitotic squashes were prepared and hybridized as described. |
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| Late instar lepidopterous larvae often have limited mobility and perception. |
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| At the end of the third instar, the larva wriggles out of its warble, falls to the ground, and burrows into the soil to pupate. |
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| Fifth instar caterpillars pupate under rocks or in the litter beneath host plant patches in mid-June to mid-July. |
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| Occasionally, females disperse at their penultimate instar and undergo their final molt in their new webs. |
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| In lepidopterans, extirpation of imaginal wing discs in the final instar delays pupation in order for the larva to regenerate lost tissue. |
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| Ovaries from late fifth instar larvae and pupae were used for initiating the cell cultures. |
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| The larval stage consists of four phases, or instars, with a complete molt between each instar. |
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| Two of these tissues, which can be readily dissected, are the anterior spiracular glands of third instar larvae and the male ejaculatory bulb. |
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| After several months of gestation the young are produced viviparously and the female carries them around on her back for a week or so, beyond their first instar stage. |
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| Rose-pink in the first instar with a black head and a blackish-brown pronotum. |
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| By the third instar the larvae become cannibalistic and usually only one larva survives per cob. |
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| The megalopas return in large swarms to the nearshore waters and estuaries in the spring, where they metamorphose into first instar juvenile crabs. |
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| By the end of the third larval instar, the whole leaf is attacked and surrounded by a dense silken mass. |
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| They aggregate in colonies and spin silken nests which enlarge until the 4th instar when the definitive winter nest is built. |
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| The final larval instar plugs the opening of the tunnel with wood borings and begins pupation. |
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| When the eggs hatch, the caterpillar enters the first instar. |
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| This parasitoid develops from eggs to larvae within the A. planipennis larva, which remains alive until its last instar. |
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| The second, third, and fourth instars resemble one another more closely than they do the first instar. |
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| Another subunit appears about the time of metamorphosis to first juvenile instar, and expression of a sixth subunit begins four or five molts later. |
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| With the low dispersal ability of late instar fall cankerworm, it is not surprising that associational susceptibility was evident at the scale of only a few meters. |
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| The anlagen for the eye imaginal disc arise as a group of about 20 cells in the embryo and proliferate through the first and second instar larval stages. |
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| By the third instar, the larva begins to bore into the sapwood forming a gallery composed of an S-shaped horizontal portion perpendicular to the axis of the tree and a vertical portion parallel to the axis. |
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| Larvae were identified as the third instar of Lucilia sericata, the common green bottle fly. |
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| Ultrastructural effects of a nonsteroidal ecdysone agonist, RH-5992, on the sixth instar larva of the spruce budworm, Choristoneura fumiferana. |
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| The early instars are whitish, but in the 3rd instar the nymphs become dark-brown while the dorsal part of the two anterior abdominal segments remains white. |
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| By breeding two troglobitic species of the genus Aphaenops, she was able to obtain the first larval instar and observed that it does not feed. |
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| Apply first at peak second instar larval development. |
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| The last preadult instar has two external wings and is called the pupa. |
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| Chaetotaxy of first instar dytiscids provides a number of characters employed in systematic studies. |
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| Strong cryptogeny: the female, with a fine membranous cuticle, remains enclosed in the exuvia of the second larval instar, which thickens and takes on a horn-like shape. |
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| Fourth instar larvae transform into prepupae without molting. |
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| Measurements of the body size, length of the mouth hook, length of cephalopharyngeal skeleton, and width of the respiratory funnel were taken for each instar. |
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| Observations of the third instar larva and puparium of Chrysomya bezziana. |
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| The emergence date at the start of the second instar is comparable to the point when young, newly mobile uropygids and scorpions descend from their mother's back. |
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