background:  linguatulosis is a rare zoonotic parasitic infection, in which human plays the role of both defini­tive and intermediate host and can be occasionally infected. this study determines the status of infection in live­stock and its po­tential risk to men in the northwestern province of azarbaijan-e-sharghi, iran. methods: in a cross-sectional study from june 2007 to june 2008, 800 slau...

linguatula serrata is a tongue-shaped parasite that infects carnivores or insectivorous reptile as final host and herbivores as intermediate ones. during necropsy of a 1.5-year-old female stray cat, a few white and fine nodules were observed on the diaphragmatic lobes of the lung. in histopathological examination, the nodules contained a turned spinosum parasite with cuticular spines and in par...

Tessaratoma javanica (Thunberg) (Hemiptera: Tessaratomidae) an important sucking pest of litchi is studied for supplementing information on its biology, morphometrics of life stages and mtCOI (DNA barcodes). More details generated on the study add to the description of stages namely egg, 1st to 5th nymphal instars and adults. The evaluation of morphometrics of the life stages reveal that the pr...

a case of linguatulosis due to linguatula serrata, a zoonotic pentastomid parasite in the pharynx of a 35 year old woman from shiraz is described. after removal of the parasites the patient was discharged without any further complaints.

BACKGROUND The study describes the estimation of the spatial distribution of questing nymphal tick densities by investigating Ixodes ricinus in Southwest Germany as an example. The production of high-resolution maps of questing tick densities is an important key to quantify the risk of tick-borne diseases. Previous I. ricinus maps were based on quantitative as well as semi-quantitative categori...

The aim of this study was to determine the favorable constant temperature range for Mahanarva spectabilis(Distant) (Hemiptera: Cercopidae) development as well as to generate geographic distribution maps of this insect pest for future climate scenarios. M. spectabilis eggs were reared on two host plants (Brachiaria ruziziensis(Germain and Edvard) and Pennisetum purpureum(Schumach)), with individ...

Maternal investment for offspring's growth and survival is widespread among diverse organisms. Vertical symbiont transmission via maternal passage is also pivotal for offspring's growth and survival in many organisms. Hence, it is expected that vertical symbiont transmission may coevolve with various organismal traits concerning maternal investment in offspring. Here we report a novel phenotypi...

The genital region of juvenile and adult halacarid genera is described. Larvae are expected to be present in all, protonymphs at least in the majority of the genera. Two of the marine genera have three nymphal instars, in the others one or two nymphal instars are suppressed. Adults of marine species have one, two or three pairs of genital acetabula; intrageneric differences in the number of ace...