Results 21 to 30 of about 203,044 (309)

Reproductive and larval biology of the sub-Antarctic hermit crab Pagurus comptus reared in the laboratory [PDF]

open access: yes, 2006
Fecundity, hatching rhythm, and the planktotrophic larval development of the hermit crab Pagurus comptus from sub-Antarctic waters of the Beagle Channel (Tierra del Fuego) were studied under controlled laboratory conditions of temperature, light cycle ...
Lovrich, Gustavo Alejandro   +2 more
core   +1 more source

Larval and early juvenile development of Lithodes santolla (Molina, 1782) (Decapoda: Anomura: Lithodidae) reared at different temperatures in the laboratory [PDF]

open access: yes, 2003
The southern king crab, Lithodes santolla Molina, is distributed in cold-temperate and subantarctic waters ranging from the southeastern Pacific island of Chiloé (Chile) and the deep Atlantic waters off Uruguay, south to the Beagle Channel (Tierra del ...
Thatje, S.   +9 more
core   +1 more source

Action of fenoxycarb on metamorphosis and cocoon spinning in Chrysoperla carnea (Neuroptera: Chrysopidae): identification of the JHA-sensitive period

open access: yesEuropean Journal of Entomology, 2005
Fenoxycarb is an insecticide with a juvenile hormone mimicking effect, which disturbs metamorphosis in several insect species, including the neuropteran Chrysoperla carnea.
Laura BORTOLOTTI   +2 more
doaj   +1 more source

Knockdown of Ecdysone-Induced Protein 93F Causes Abnormal Pupae and Adults in the Eggplant Lady Beetle

open access: yesBiology, 2022
Ecdysone-induced protein 93F (E93) plays triple roles during post-embryonic development in insects whose juvenile instars are more than four. However, it only acts as a specifier of adult structures in Drosophila flies whose larval instars are fixed at ...
Jian-Jian Wu   +6 more
doaj   +1 more source

Lepidopteran Larval Midgut During Prepupal Instar: Digestion or Self-Digestion? [PDF]

open access: yesAutophagy, 2007
Programmed cell death (PCD) is crucial in body restructuring during metamorphosis of holometabolous insects (those that have a pupal stage between the final larval and adult stages). Besides apoptosis, an increasing body of evidence indicates that in several insect species programmed autophagy also plays a key role in these developmental processes.
TETTAMANTI, GIANLUCA   +3 more
openaire   +4 more sources

Description of the third larval instar and pupa of Geniates barbatus Kirby (Coleoptera, Scarabaeidae, Rutelinae) [PDF]

open access: yes, 2013
Description of the third larval instar and pupa of Geniates barbatus Kirby (Coleoptera, Scarabaeidae, Rutelinae). The last larval instar and pupa of the Neotropical Geniatini Geniates barbatus Kirby, 1819 are described and illustrated.
Fuhrmann,Juares
core   +1 more source

Endogenous 20-hydroxyecdysone levels in the haemolymph of non-diapause-destined and diapause-destined generations of tasar silkworm, Antheraea mylitta (Lepidoptera: Saturniidae) and associated developmental changes

open access: yesEuropean Journal of Entomology, 2008
A complete profile of the 20-hydroxyecdysone (20-HE) titer, development and endocrine events from 1st instar to pupation of the larvae of non-diapause-destined (NDD) and diapause-destined (DD) tasar silkworm, Antheraea mylitta Drury (Lepidoptera ...
Dinesh KUMAR   +5 more
doaj   +1 more source

Pathogenicity and Side Effect of Indigenous Beauveria bassiana on Coccinella undecimpunctata and Hippodamia variegata (Coleoptera: Coccinellidae)

open access: yesInsects, 2021
This study aimed to estimate the virulence of an indigenous Beauveria bassiana on all developmental stages of two indigenous coccinellids; Coccinella undecimpunctata and Hippodamia variegata through three application methods; direct spray, contact method,
Samy Sayed   +3 more
doaj   +1 more source

Study of the efficacy of Lambdacyhalothrin 10% wp and the Fruits extracts of Datura innoxia plant in the fourth larval instar and adults of sand fly Phlebotomus papatasi (Diptera: Psychodidae)

open access: yesTikrit Journal of Pure Science, 2018
The results of the present study, which aimed to demonstrate the efficacy of Lambdacyhalothrin 10% and alcoholic extracts of  Datura  innoxia  fruits in the control of fourth larval instar and adults of the phlebotomus  papatasi , indicated that the ...
Saeed Maher Lafta
doaj   +1 more source

A novel technique for identifying the instar of field-collected insect larvae. [PDF]

open access: yesPLoS ONE, 2013
Many field studies of insects have focused on the adult stage alone, likely because immature stages are unknown in most insect species. Molecular species identification (e.g., DNA barcoding) has helped ascertain the immature stages of many insects, but ...
Kôji Sasakawa
doaj   +1 more source

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