In the following spring the larvae become active once more and approach the surface, where pupation takes place shortly before the moths emerge.
Having completed their development in the fruit, the caterpillars bore their way out and spin their cocoons beneath the loose bark of the tree trunks; in these cocoons pupation takes place, and from them the next generation of moths develops.
The winter is passed by the larvae in their cocoons, and pupation takes place just prior to the period when the moths emerge in the spring.
The caterpillars fed on the living plants in the breeding-house, and after pupation were divided into two portions:-- A.
Placed for pupation in an orchid-house at 12°-25° R.
It appeared, therefore, that the only effect produced by cold in all chrysalides exposed more than three days after pupation was to retard the emergence of the butterfly.
The author wished to determine if possible whether, in order to effect any change, it was necessary that cold should be applied immediately after pupation or if one or several days might intervene between pupation and refrigeration.
In this fifth stage the larva attains a length of six centimeters, after which the fifth moult takes place, the caterpillar becoming ready for pupation in the sixth stage.
They generally undergo pupation in the same place as that which they inhabit as larvæ and indeed in their larval skin which hardens into an oval pupa-case.
Short, suspended at the anal extremity, and held in position by a silk girdle, but not closely appressed to the surface upon which pupation has taken place; thickly covered with short, projecting hair.
The chrysalids are short, compressed, attached at the anal extremity, with a girdle or cincture about the middle, closely fastened to the surface upon which pupation takes place.
Pupation generally takes place among fallen leaves or rubbish at the foot of the trees upon which the caterpillar has fed.
The chrysalids are, however, never closely appressed to the surface upon which pupation takes place.
The chrysalis is blackish-brown, attached at the anal end, held in place by a girdle, but not closely appressed to the surface on which pupation has taken place, and thickly studded with small projecting hairs.
The chrysalis is short, rounded at the head, and pupation takes place on the surface of the ground, among leaves and litter, a few loose threads of silk being spun about the spot in which transformation occurs.
The effect of cold suddenly applied to the chrysalids of butterflies at the moment of pupation is often to produce remarkable changes in the markings.
Their particular growth begins at the end of March, and they are ready for pupation up to May.
Pupation takes place in or on the ground, under some sort of cover, and it lasts for 15-19 days.
I learned by investigation that pupation takes place in a hole worked out by the caterpillar, so earth must touch these cases only as they lie upon it.
Once under the oak trees of a summer resort, Miss Katherine Howell, of Philadelphia, intercepted a Luna caterpillar in the preliminary race before pupation and brought it to me.
They remain as prepupae until late September whenpupation occurs.
Pupation occurs behind a plug of excelsior-like frass at the upper end of the gallery in the heartwood.
With the coming of spring, pupation occurs and adult emergence follows in about two weeks.
Pupation occurs on the soil surface or in the litter.
Pupation takes place in a chamber constructed by the larva at the feeding site.
Pupation occurs within the cone and moths emerge through the hollow seeds.
The date of pupation was not noted, but on September 9, one of the spun-together bramble leaves was opened, and a chrysalis found within.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "pupation" in a variety of sentences. We hope that you will now be able to make sentences using this word.
