Results 281 to 290 of about 72,052 (310)

Estimation of larval instars of Hypsipyla robusta Moore (Lepidoptera: Pyralidae) by larval frass widths

1995
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Mo, J, Tanton, M T
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Larval instars of Appendiseta robiniae (Gillette, 1907) (Hemiptera: Aphidoidea: Drepanosiphidae)

Polish Journal of Entomology / Polskie Pismo Entomologiczne, 2011
Larval instars of Appendiseta robiniae (Gillette, 1907) (Hemiptera: Aphidoidea: Drepanosiphidae) Appendiseta robiniae (Gillette, 1907) is a species relatively recently recorded in the Polish fauna. In the development of A. robiniae 4 larval instars were observed prior to the adult. The morphometric parameters of each larval instar were defined.
Beata Borowiak-Sobkowiak, Roma Durak
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Visualization of larval segmental nerves in 3(rd) instar Drosophila larval preparations.

Journal of visualized experiments : JoVE, 2010
Drosophila melanogaster is emerging as a powerful model system for studying the development and function of the nervous system, particularly because of its convenient genetics and fully sequenced genome. Additionally, the larval nervous system is an ideal model system to study mechanisms of axonal transport as the larval segmental nerves contain ...
Samantha, Fye, Kunsang, Dolma, Min Jung, Kang, Shermali, Gunawardena   +3 more
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THE LARVAL INSTARS OF APHIDIUS SMITHI (HYMENOPTERA: APHIDIIDAE)

The Canadian Entomologist, 1979
AbstractThe pea aphid parasite Aphidius smithi Sharma & Subba Rao has four larval instars. The first and the fourth instars are mandibulate. The second instar possesses oral lobes but not mandibles. A bilobed feeding structure on the ventral side of the head of the third instar could function as a pharyngeal pump.
R. J. Chorney, M. Mackauer
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Puffing patterns during the fourth larval instar in Chironomus pallidivittatus salivary glands

Chromosoma, 1975
The puffing pattern of polytene chromosomes in salivary glands from Chironomus pallidivittatus larvae and prepupae has been studied in glutaraldehyde-acetic acid fixed, lactic acid flattened preparations. Some observations were also made on F1 hybrid species C. pallidivittatus X C. tentans.
O D, Colman, J C, Stockert
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Frass Size as an Indicator of Spruce Budworm Larval Instars

Annals of the Entomological Society of America, 1959
Frass width, but not its length or volume, shows correlation with the various larval instars. The mean width, and the standard deviation, for each instar are tabulated. Frass, collected in cone-shaped cloth traps in the field, can be used as an index of the percent of larvae in each instar present when the collection is made.
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Bioassay of nucleopolyhedrosis virus against larval instars of Malacosoma neustria

Journal of Invertebrate Pathology, 1975
Abstract The relative susceptibility of third- and fourth-instar Malacosoma neustria larvae to a nucleopolyhedrosis virus was studied by bioassay in the laboratory. Larval mortality increased with increased dosage, whereas the dosage-incubation relationship was reversed. Larval age inversely affected mortality and incubation.
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Larval instars of Apion Clavipes gerst. (coleoptera: apionidae)

Indian Journal of Entomology, 2018
Morphological measurements such as head capsule width are being employed for classifying larval instars of insects. For successful IPM of larval stages of pests, assessment of the life history stage is very important. Apion clavipes Gerst. (Coleoptera: Apionidae) is an important pest of mungbean in the lowland areas of north Shewa, Ethiopia.
Mintesnot Worku, Ferdu Azerefegne, Yibrah Beyene   +2 more
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Prey capture by the four larval instars of Chaoborus crystallinus

Limnology and Oceanography, 1992
Prey capture ability of fourth‐instar Chaoborus larvae has been studied widely but relatively little comparable information is available for the first three larval instars. In this laboratory study I measured strike and contact efficiencies of all four instars of Chaoborus crystallinus. The effectiveness of prey escape behavior was also recorded.
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Needle-Mining Habits and Larval Instars of the Spruce Budworm

The Canadian Entomologist, 1954
Many of the early papers on the spruce budworm,Choristoneura fumiferana(Clem.), included accounts of the general habits and seasonal history of the insect (9, 13, 18, 10, 22). Later papers have heen concerned principally with ecological or pathological relations, current infestations and damage, or chemical control.
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