scholarly journals EARLY STAGES OF GRAPTA J-ALBUM

1889 ◽  
Vol 21 (9) ◽  
pp. 164-165
Author(s):  
Shelby. W. Denton
Keyword(s):  
Food Plant ◽  
Early Stages

Since the food plant and early stages of Graptaj-Album appear to be unknown, perhaps the following notes (incompletee as they are owing to my ignorance of the species larvæ I was rearing) may still be of some value of shed a little light on the early stages of this fine butterfly.

scholarly journals THE LARVA AND CHRYSALIS OF CHRYSOPHANUS DIONE

1893 ◽  
Vol 25 (1) ◽  
pp. 22-22
Author(s):  
Henry Skinner
Keyword(s):  
Common Species ◽  
Food Plant ◽  
Entire Body ◽  
Early Stages ◽  
Dorsal Stripe

Some time ago Mr.Henry G. Willard, of Grinnell, Iowa, very kindly sent me of the full grown larvæ of this species. I made a few notes at the time which may be of use, owing to the fact that nothing has been publihsed in regard to the early stages of this butterfly. The food plant at the home of the insect is Rumex longifolius, but they readily ate our common species of dock found here. The full grown larva were onisciform in shape, grass greein in colour, and 20 mm in length. Most of them had a narrow, claret-coloured dorsal stripe, and the entire body, under a glass, was seen to be clothed with minute black hairs.

Early Stages and Biology of Melitaea timandra Coutsis et Oorschot, 2014(Lepidoptera, Nymphalidae) Under the Conditions of Kuh-e-Binalud Mountain (Iran)

Zootaxa ◽  
2020 ◽  
Vol 4729 (4) ◽  
pp. 566-574
Author(s):  
KIRILL A. KOLESNICHENKO ◽  
ANATOLY A. KOTLOBAY
Keyword(s):  
Food Plant ◽  
Natural Conditions ◽  
Early Stages ◽  
Larval Parasitoid ◽  
Development Cycle

This article presents characteristics of the habitats and flying period of Melitaea timandra Coutsis et Oorschot, 2014 and describes the behavior of the adults under natural conditions, their food plant, egg chorion morphology, and caterpillars of the first and senior instars. In addition, a larval parasitoid is identified as Cotesia sp., and the possible development cycle of M. timandra is described. 

NOTES ON THE EARLY STAGES OF CATOCALÆ

1901 ◽  
Vol 33 (11) ◽  
pp. 298-300
Author(s):  
G. M. Dodge ◽  
E. A. Dodge
Keyword(s):  
Central Line ◽  
Food Plant ◽  
Mature Larva ◽  
Early Stages ◽  
Black Band ◽  
Front Running ◽  
Dorsal Stripe

Catocala retecta, Grt.Food-plant, hickory. Length of mature larva, two and one-half inches. Head rather flat, as broad as first segment, gray striped with dark brown, and with a broad black band, ragged iu front, running up each side to top of lobe, but not continued over the summit.The dorsal stripe consists of a series of rounded, brown patches with a black central line; tubercles, although not large, tipped with white, and conspicuous; subdorsal stripes brown, interrupted and indistinct.

Spherulitic crystal growth in the prodissoconch larval of Crassostrea virginica

1983 ◽  
Vol 41 ◽  
pp. 518-519
Author(s):  
George G. Cocks ◽  
Louis Leibovitz ◽  
DoSuk D. Lee
Keyword(s):  
Crystal Structure ◽  
Crassostrea Virginica ◽  
Crystal Orientation ◽  
Developmental Changes ◽  
Gastrula Stage ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Stages Of Growth ◽  
Early Stages ◽  
Initial Deposition

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.

Formation of Dislocation Channels in Neutron Irradiated Molybdenum

1972 ◽  
Vol 30 ◽  
pp. 672-673
Author(s):  
S. Mahajan
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Ambient Temperature ◽  
Room Temperature ◽  
Channel Formation ◽  
Early Stages ◽  
Transmission Electron ◽  
Three Stages ◽  
Two Stages ◽  
Polycrystalline Molybdenum

The evolution of dislocation channels in irradiated metals during deformation can be envisaged to occur in three stages: (i) formation of embryonic cluster free regions, (ii) growth of these regions into microscopically observable channels and (iii) termination of their growth due to the accumulation of dislocation damage. The first two stages are particularly intriguing, and we have attempted to follow the early stages of channel formation in polycrystalline molybdenum, irradiated to 5×1019 n. cm−2 (E > 1 Mev) at the reactor ambient temperature (∼ 60°C), using transmission electron microscopy. The irradiated samples were strained, at room temperature, up to the macroscopic yield point.Figure 1 illustrates the early stages of channel formation. The observations suggest that the cluster free regions, such as A, B and C, form in isolated packets, which could subsequently link-up to evolve a channel.

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