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Source: Medical and Veterinary Entomology
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Total 180 results found since Jan 2013.
Microorganisms in the ticks Amblyomma dissimile Koch 1844 and Amblyomma rotundatum Koch 1844 collected from snakes in Brazil
The objective of this study was to investigate tick infestations on snakes (Reptilia: Squamata: Serpentes) arriving at the serpentarium at the Institute Vital Brazil, Rio de Janeiro. Some of the identified ticks were individually tested for the presence of bacteria of the generaRickettsia (Rickettsiales: Rickettsiaceae),Borrelia (Spirochaetales: Spirochaetaceae),Coxiella (Legionellales: Coxiellaceae),Bartonella (Rhizobiales: Bartonellaceae),Ehrlichia (Rickettsiales: Anaplasmataceae),Anaplasma (Rickettsiales: Anaplasmataceae), and Apicomplexa protozoa of the generaBabesia (Piroplasmida: Babesiidae) andHepatozoon (Eucoccidio...
Source: Medical and Veterinary Entomology - November 28, 2018 Category: Veterinary Research Authors: M. Ogrzewalska,
C. Machado,
T. Rozental,
D. Forneas,
L. E. Cunha,
E. R. S. de Lemos Tags: Original Article Source Type: research
Comparative morphology of the deer ked Lipoptena fortisetosa first recorded from Italy
This study includes a morphological comparative description ofL. cervi andL. fortisetosa, emphasizing the peculiar differences between the two species to facilitate their accurate identification. The most pertinent morphological differences between the two species are highlighted, such as the external features of the antennae, distribution of bristles, and different features in the external genitalia. In both species, scanning electron microscopy of mouthparts revealed strong adaptive convergence in the feeding apparatus. Modified palps and a very thin proboscis are described in relation to feeding behaviour.
Source: Medical and Veterinary Entomology - November 26, 2018 Category: Veterinary Research Authors: A. Andreani,
P. Sacchetti,
A. Belcari Tags: Original Article Source Type: research
A review and illustrated description of Musca crassirostris, one of the most neglected haematophagous livestock flies
Musca crassirostris belongs to a group of true obligate blood feeders that are highly prolific and abundant around cattle.
Its mentum is a boat ‐shaped, black, shiny mass of chitin, and its labella harbours rasping prestomal teeth that are greatly increased in size and strength compared with those in otherMusca spp.
Based on captures in haematophagous insect traps in a livestock area, the abundance ofM. crassirostris appears to be four and 45 times greater than abundances of stomoxyines and tabanids, respectively. AbstractTabanids, stomoxyine flies, hippoboscids and tsetse flies are the most well ‐known brachyceran bit...
Source: Medical and Veterinary Entomology - November 21, 2018 Category: Veterinary Research Authors: M. Desquesnes,
S. Onju,
P. Chalermwong,
S. Jittapalapong,
R. Masmeatathip Tags: Review Article Source Type: research
Longitudinal monitoring of anti ‐saliva antibodies as markers of repellent efficacy against Phlebotomus perniciosus and Phlebotomus papatasi in dogs
Dogs naturally exposed toLeishmania vectors, the sandfliesPhlebotomus perniciosus andPhlebotomus papatasi, and treated preventively with sandfly repellents developed antibodies against the insects' salivary proteins.
Anti ‐P. perniciosus and ‐P. papatasi saliva antibody concentrations were low, which suggests the repellent limited sandfly bites and is useful in canine leishmaniasis control.
Longitudinal monitoring of anti ‐saliva antibodies is a good method of marking insect repellent efficacy againstP. perniciosus andP. papatasi in dogs. AbstractA 2 ‐year longitudinal study of enzyme‐linked immunosorbent assay (...
Source: Medical and Veterinary Entomology - November 18, 2018 Category: Veterinary Research Authors: J. Risue ño,
T. Spitzová,
L. J. Bernal,
C. Muñoz,
M. C. López,
M. C. Thomas,
J. J. Infante,
P. Volf,
E. Berriatua Tags: Original Article Source Type: research
Evaluating perceptions of risk in mosquito experts and identifying undocumented pathways for the introduction of invasive mosquito species into Europe
This study shows that there were no pathways unknown to European experts that could lead to cryptic introductions into the experts' countries. Furthermore, the findings demonstrated that th e perceived efficacy of surveillance and control is key to overcoming the constraints experienced and to supporting the implementation of actions against introductions.
Source: Medical and Veterinary Entomology - November 14, 2018 Category: Veterinary Research Authors: A. Iba ñez‐Justicia,
P. M. Poortvliet,
C. J. M. Koenraadt Tags: Original Article Source Type: research
Experimental study of the susceptibility of a European Aedes albopictus strain to dengue virus under a simulated Mediterranean temperature regime
Medical and Veterinary Entomology, EarlyView.
Source: Medical and Veterinary Entomology - July 27, 2018 Category: Veterinary Research Authors: M.
Brustolin
,
C.
Santamaria
,
S.
Napp
,
M.
Verd ún
,
R.
Rivas
,
N.
Pujol
,
S.
Talavera
,
N.
Busquets Source Type: research
Comparative studies of stenogamous behaviour in the mosquito Culex pipiens complex
Medical and Veterinary Entomology, EarlyView.
Source: Medical and Veterinary Entomology - June 1, 2018 Category: Veterinary Research Authors: S.
Kim
,
S.
Trocke
,
C.
Sim Source Type: research
Studies on the resting behaviour and host choice of Anopheles gambiae and An. arabiensis from Muleba, Tanzania
Abstract
The relative efficacy of a mechanical (Prokopack) collection method vs. manual aspiration in the collection of resting mosquitoes was evaluated in northern Tanzania before and after an intervention using indoor residual spraying and longlasting insecticide‐treated nets. In smoke‐free houses mosquitoes were collected from the roof and walls, but in smoky houses mosquitoes were found predominantly on the walls. Anopheles gambiae (Diptera: Culicidae) constituted 97.7% of the 312 An. gambiae complex specimens identified before but only 19.3% of the 183 identified after the intervention. A single sampling with the...
Source: Medical and Veterinary Entomology - February 26, 2018 Category: Veterinary Research Authors: J. D. Charlwood, E. Kessy, K. Yohannes, N. Protopopoff, M. Rowland, C. LeClair Tags: Original Article Source Type: research
Micro ‐computed tomography visualization of the vestigial alimentary canal in adult oestrid flies
Abstract
Oestrid flies (Diptera: Oestridae) do not feed during the adult stage as they acquire all necessary nutrients during the parasitic larval stage. The adult mouthparts and digestive tract are therefore frequently vestigial; however, morphological data on the alimentary canal in adult oestrid flies are scarce and a proper visualization of this organ system within the adult body is lacking. The present work visualizes the morphology of the alimentary canal in adults of two oestrid species, Oestrus ovis L. and Hypoderma lineatum (de Villiers), with the use of non‐invasive micro‐computed tomography (micro‐CT) and ...
Source: Medical and Veterinary Entomology - February 16, 2018 Category: Veterinary Research Authors: D. Mart ín‐Vega, A. Garbout, F. Ahmed, L. M. Ferrer, J. Lucientes, D. D. Colwell, M. J. R. Hall Tags: Short Communication Source Type: research
Excretion/defecation patterns in Triatoma infestans populations that are, respectively, susceptible and resistant to deltamethrin
Abstract
Pyrethroid resistance has been detected in Triatoma infestans (Klug) (Hemiptera: Reduviidae) specimens from different areas of Argentina and Bolivia. Genes conferring resistance can have a pleiotropic effect with epidemiological and evolutionary consequences. This research studied excretion/defecation patterns in deltamethrin‐resistant T. infestans in order to elucidate its biological performance, adaptive consequences and role in the transmission of Chagas' disease. One deltamethrin‐susceptible strain and two deltamethrin‐resistant strains were used. Fifth‐instar nymphs were fed ad libitum and their defe...
Source: Medical and Veterinary Entomology - February 12, 2018 Category: Veterinary Research Authors: P. Lobbia, J. Calcagno, G. Mougabure ‐Cueto Tags: Original Article Source Type: research
Efficacy of a novel neem oil formulation (RP03 ™) to control the poultry red mite Dermanyssus gallinae
Abstract
Dermanyssus gallinae (Mesostigmata: Dermanyssidae) is the most harmful ectoparasite of laying hens, represents an occupational hazard for poultry workers, and a growing threat to medical science per se. There is increasing demand for alternative products, including plant‐derived acaricides, with which to control the mite. The present study investigated the efficacy of neem oil against D. gallinae on a heavily infested commercial laying hen farm. A novel formulation of 20% neem oil, diluted from a 2400‐p.p.m. azadirachtin‐concentrated stock (RP03™), was administered by nebulization three times in 1 week....
Source: Medical and Veterinary Entomology - February 8, 2018 Category: Veterinary Research Authors: A. Camarda, N. Pugliese, A. Bevilacqua, E. Circella, L. Gradoni, D. George, O. Sparagano, A. Giangaspero Tags: Original Article Source Type: research
The effects of acaricide treatment of sheep on red grouse Lagopus lagopus scotica tick burdens and productivity in a multi ‐host system
This study examines the effects of sheep management on grouse tick burdens and productivity using sites with a range of wild host densities. Sites at which applications of acaricide were more frequent had lower tick burdens; this relationship was similar on sites with a range of deer densities. However, no direct link was detected between acaricide treatment interval and grouse productivity. Sites with higher deer densities had higher grouse tick burdens and lower productivity [mean ± standard error (SE) young : adult ratio: 1.2 ± 0.2] compared with sites with lower deer densities (mean ± SE young : adul...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: K. Fletcher, D. Baines Tags: Original Article Source Type: research
Bionomics of livestock ‐associated Culicoides (biting midge) bluetongue virus vectors under laboratory conditions
This study reports on the bionomics of livestock‐associated vector Culicoides species under laboratory conditions. Insects were collected from the field from spring to autumn 2014 on a cattle farm in Spain. Eggs obtained from gravid females were maintained for larval rearing and pupal development. Culicoides imicola Kieffer took the longest time to oviposit; the highest number of eggs was laid by Culicoides circumscriptus Kieffer (148.7 ± 73.8 eggs). Field‐collected gravid C. imicola and Obsoletus complex females showed the longest lifespans. The longest lifecycle, generally more than 40 days, was recorded for C...
Source: Medical and Veterinary Entomology - December 1, 2017 Category: Veterinary Research Authors: C. Barcel ó, M. A. Miranda Tags: Original Article Source Type: research
