Results 171 to 180 of about 1,702 (212)

First description of the first instar larva of Sphecapatoclea and Sphecapatodes (Diptera: Sarcophagidae)

Zoologischer Anzeiger, 2017
Abstract The first instar larva is described for the first time for Sphecapatoclea Villeneuve and Sphecapatodes Villeneuve, two poorly known genera of Palaearctic Miltogramminae. Larval morphology was analysed for one species of each genus using a combination of light microscopy and scanning electron microscopy. The following morphological structures
Szpila, Krzysztof, Akbarzadeh, Kamran, Pape, Thomas   +2 more
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Notes on the first instar larvae of the genus Tipula (Diptera: Tipulidae)

Zootaxa, 2019
The egg-larvae of 890 individuals in 8 species belonging to long palped crane flies of the genus Tipula (Diptera: Tipulidae) were obtained from 17 gravid females captured in Lithuania in 2011–2012. Depending on the species, it took from four days to more than eleven weeks for the eggs to hatch. Of the four instars of larvae for crane flies, the second,
Podeniene, Virginija, Nasevičiene, Nijole, Podenas, Sigitas   +2 more
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Survival of Unfed First-Instar Grasshoppers

The Canadian Entomologist, 1960
During some investigations on grasshoppers it became necessary to know how long they would survive without food or water after hatching. The literature contains only scanty observations. Washburn (1911) reported that grasshoppers “freshly hatched, can live from four to five days without food”. Langford (1930) showed that 30 per cent of Melanoplus femur-
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Descriptions of the First Instars in the Genus Haliaspis (Homoptera: Diaspididae)

Annals of the Entomological Society of America, 1975
The first instars of 6 species in the genus Haliaspis are described and the males are illustrated. A key to the species based on the 1st instars is presented.
James O. Howell, H. H. Tippins
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Biology of the eggs and first-instar larvae

1995
Egg-laying behaviour and selection of oviposition sites, coupled with any subsequent redistribution of egg-masses through drift and active dispersal of first instar larvae, are primarily responsible for determining patterns of larval distribution. It is therefore both logical and convenient that they should be considered in combination.
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Survey of first instars of the Siphonini (Diptera: Tachinidae)

Insect Systematics & Evolution, 1987
First instars of 68 species of the Siphonini were examined, including representatives of all genera of the tribe except Proceromyia Mesnil, and all subgenera of Siphona Meigen except Uruactia Townsend. Two aspects of first instar siphonines are markedly varied: features of the cephalopharyngeal skeleton and vestiture ventrally on posterior abdominal ...
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Development of the First-Instar Spruce Budworm (Lepidoptera: Tortricidae)

Annals of the Entomological Society of America, 2000
Development of the 1st-instar (L1) of the spruce budworm, Choristoneura fumiferana (Clemens), was studied at different temperatures under laboratory conditions. The development process was divided into different phases based on 4 distinct events observed during L1 development: hatchingofL1,constructionofhibernacula,excretionofgreenpellets,andmolt ...
Er-Ning Han, Eric Bauce, Frederic Trempe-Bertrand   +2 more
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Preparation of Cuticles from Unhatched First-Instar Drosophila Larvae

Cold Spring Harbor Protocols, 2011
INTRODUCTIONThe finely sculpted cuticle of Drosophila carries a rich array of morphological details. Thus, cuticle examination has had a central role in the history of genetics. Studies of the Drosophila cuticle have focused mainly on first-instar larvae and adult cuticular morphology.
David L, Stern, Elio, Sucena
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Aphagy and vestigial stylets in first-instar nymphs of Aradidae (Hemiptera, Heteroptera)

Arthropod Structure & Development, 2023
Aradidae are known for their remarkably long stylets, coiled at rest in the anterior part of the head. However, previous reports indicated that at least some species lacked stylets during the first nymphal instar. A more detailed examination of Aradus betulae 1st-instar nymphs showed that their mandibular and maxillary stylets are abnormally short, not
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Scanning electron microscopy studies on the first‐instar larva of Dermatobia hominis

Medical and Veterinary Entomology, 1997
Abstract. First‐instar larvae of Dermatobia hominis collected 1, 4 and 7 days after having penetrated experimentally infected rats, were studied by scanning electron microscope (SEM) observation.
T, de Filippis, A C, Leite
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