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Showing 1 to 20 of 31 for “"Immature stages"”.
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The Behavioral Ecology of Certain Syrphidae (Diptera), With Descriptions of The Immature Stages of Mallota Posticata (Fabricius)
Made available in DSpace on 2014-12-14T07:04:01Z (GMT). No. of bitstreams: 1 7804082.pdf: 4088413 bytes, checksum: 3fa7d1ef6832e6f297178cfda42dd961 (MD5) Previous issue date: 1977
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A morphological study of some of the immature stages of Cryptohypnus nocturnus eschscholtz, and a study of some ecological factors concerning wireworms : a preliminary study
… in their requirements and activities. Since the immature stages of C. nocturnus have never been described, a study of the external morphology was undertaken and is presented in the first main division of this report. In spite of the well known fact that temperature and moisture conditions affect …
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Aspects of the biology, behavior, bionomics, and control of immature stages of the cat flea Ctenocephalides felis felis (Bouche) (Siphonaptera: Pulicidae) in the domiciliary environment
… within carpet. The spatial pattern of the immature stages and remains was influenced by the habits of the pet host within a given room. First-instar larvae do not move far, if at all, from the location of eclosion. The movement of the larval stage is influenced by biotic and abiotic factors …
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Estudos sobre a biologia de flebótomos, vetores de Leishmanioses - Lutzomyia intermedia Lutz & Neiva, 1912 e Lutzomyia longipalpis Lutz & Neiva, 1912 - em condições experimentais
… oviposition; duration and survival rate in each immature stage of development – egg, larva and pupa; food preference of larvae and adults; influence of environmental factors – temperature, humility and light intensity – on the behaviour of each species; life span and tolerance of females to the …
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Biology and biocontrol potential of Taphrocerus schaefferi Nicolay and Weiss (Coleoptera, Buprestidae), a leaf miner attacking yellow nutsedge (Cyperus esculentus L.)
… Adults emerge in late July and August. The immature stages are described and illustrated. The life cycle of <u>T. schaefferi</u> is well synchronized with that of its host. The primary mortality factor of the immature stages is two larval and pupal chalcid parasites which account for 74% of …
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Fannia parafemoralis Araujo & Couri, 1996 e Fannia paraisensis Araujo & Couri, 1996: morfologia das fases jovens, ciclo de vida e aspectos morfológicos dos adultos (Diptera - Fanniidae)
… 1996 are studied. ln the morphological study the immature stages of both species are described and illustrated and the adults are characterized by a diagnosis. The species were rared separately and the evolutive cycle was accompanied, with a diet of sacarose and fish. The biological studied …
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A morphological study of first-stage nymphs of five Periplaneta species (Dictyoptera: Blattidae)
… little systematic work has been conducted on the immature stages. There are very few descriptions of the nymphs of any Periplaneta species, and those that are available are rather brief and not completely accurate. This paper presents detailed descriptions and keys to the first-stage nymphs of the …
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Examining external morphological characteristics of Lucilia sericata pupae for age estimation in medico-legal investigations
… estimation of the PMI. Flies undergo different stages of development. All the immature stages can be utilized as evidence at death scenes. Out of all the immature stages, pupae represent the oldest specimens, which makes them valuable in establishing a minimum time since death. Identification …
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Contributions to the autecology and ecosystematics of immature ceratopogonidae (Diptera), with emphasis on the tribes heteromyiini and sphaeromiini in the middle atlantic United States
Biological and systematic study of the immature stages of the biting midges (Diptera: Ceratopogonidae) has been infrequent, although the family is one of the largest in the order, with over 4,000 species worldwide, and is ubiquitous among aquatic/semiaquatic environments. An ecosystematic analysis …
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Chionodes mediofuscella (Clemens) (Lepidoptera:Gelechiidae), an indigenous insect infesting the seeds of giant ragweed (Ambrosia trifida L.) (Compositae)
… has escaped its natural enemies. The biology and immature stages of this species are poorly known. The egg, last instar, and pupal stadium are described. Egg: .4-.5 mm in length; greatest width .2 mm. Shape ovoid, obovate, some crescent shaped. Last instar: length 4-9 mm, head capsule .6-.9 mm in …
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Biological studies of Rhinocyllus conicus, Carduus thoermeri and a model of the interaction between these two species
… determined developmental periods, mortality for immature stages and the ovipositional pattern of R. conicus. The model successfully simulated the ovipositional pattern of R. conicus and the flowering phenology of C. thoermeri. Larval population dynamics of R. conicus, in the model however, did …
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Influence of Detritus Levels and Organic Pollution on Interspecific Resource Competition, Oviposition Behavior, and Larval Survival of Two Tire-Inhabiting Mosquito Species (Diptera: Culicidae)
… the factors affecting distributions of the immature stages is important to the understanding and control of adult populations. Discarded automobile tires comprise important larval mosquito habitats. The Asian tiger mosquito (<em>Aedes albopictus</em>) and the southern house mosquito …
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Characterization of the Bacterial Microbiome of Exotic Tick Species Collected from Migratory Birds
… hosts to ectoparasites like ticks (predominantly immature stages) and are known reservoirs of several pathogens transmitted by ticks. Parasitizing these birds, exotic tick species often hitch rides to non-native ecological niches, bringing along tick-borne pathogens. This study aims to profile the …
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Broccoli yield response to cabbage looper and varietal preferences of lepidopterous pests of broccoli
… in Montgomery Co., VA. Based on counts of all immature stages of the insects for three seasons, Packman and Southern Comet varieties were less preferred compared to Green Defender. Laboratory studies indicated that imported cabbageworm larvae developed faster to the fifth instar on Packman …
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Studies on the Structure and Pathogens of the Small Hive Beetle (Coleoptera: Nitidulidae)
… SHBs allows for immediate access to adults and immature stages without having to constantly collect them from infested bee colonies. A clean and cost effective method for rearing SHBs is presented in this thesis.</p> <p>There is little published information on the external morphology of the SHB. …
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Reproduction and development of the black vine weevil (Coleoptera: Curculionidae) in relation to environmental factors
… prediction of stage emergence more accurately. Immature-development study at constant temperatures 11-30 oC showed that there was the difference in optimal temperature regime among immature stages, which suggests that temperature can play a role to adapt each stage to the different temperature …
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The Behaviour and Ecology of Mosquito Vectors
… studied due to how difficult it is to study the immature stages. I attempted to collect and rear Cq. perturbans to establish a laboratory colony. A multi-generational colony was not successful in part to high mortality rates in the 1st instar and pupal stage as well as a suspected obligatory …
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DNA barcoding of forensically important flies in the Western Cape
… for closely related species, especially during immature stages of the lifecycle or when the specimen is damaged. Molecular identification such as DNA barcoding has therefore become a popular method of identifying species. DNA barcoding characterises species by sequencing and analysing specific …
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Contributions toward the integrated pest management of diamondback moth, Plutella xylostella (L.), on collards in Virginia
… Ecological life table studies of P. xylostella immature stages on collards located on the Eastern Shore and on Kentland Farm, near Blacksburg at the New River Valley, VA revealed that most (98 to 99%) of P. xylostella died from natural causes. Mortality factors varied between the two regions. …
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The role of certain mortality factors in the underperformance of Aristaea (Parectopa) thalassias (Meyrick) as a biological control agent of Leptospermum laevigatum F. Muel.
… this study considers the biology of the immature stages, larval mortality due to parasitoids, predation and overcrowding, and seasonal influences on development and survival. The findings showed that A. thalassias is present throughout the year, completes its life cycle in 58 days (as …
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