The species Ecdyonurus sumatranus Ulmer, 1939 was described from Sumatra based on a female imago and a single nymph. It was designated as the type-species of the genus Ecdyonuroides Dang, 1967, erected because of the peculiar morphology of the nymph. This genus was put into synonymy later and the species is currently known as Thalerosphyrus sumatranus (Ulmer, 1939). The female imago holotype of...

In respect of its morphology, biology and epidemiology, Hyaloomma (Euhyalonuna) impressum Koch, 1844 is one of the more poorly studied ticks of the genus Hyalomma Koch, 1844. No comprehensive morphological study has been done to date, and the nymph has not been described. Here the adults and larva are redescribed, and the nymph is described for the first time. Data on hosts, geographical distri...

We previously examined the physiological role of the anticoagulant salivary protein 14 (salp14) in adult Ixodes scapularis and showed that Salp14 played a role in tick feeding and engorgement. We now analyze whether the disruption of the salp14 family expression by RNA interference affects tick weight in naïve nymph I. scapularis. Salp14 expression after dsRNA injection was significantly reduce...

The pistachio psylla, Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera: Psyllidae) is a major pest of pistachio trees, Pistacia vera L. (Sapindalis: Anacardiaceae) throughout pistachio-producing regions in Iran. Different density levels of A. pistaciae nymphs were maintained on pistachio trees by different insecticide dosages to evaluate the relationship between nymph density and yield l...

The efficacy of subcutaneous, intramuscular and intraperitoneal inoculation of heartwater infective blood or nymph suspensions was tested in 5 experiments involving a total of 199 sheep. The success rate of subcutaneous injections varied greatly (0-100%) in the different groups. However, it was found that certain additives to the inoculum, such as dimethyl sulphoxide or uninfective brain tissue...

Spider mites are considered as a potential threat to varying agricultural crops across the globe. Among agriculturally important spider mite species, Tetranychus urticae Koch and macfarlanei Baker Pritchard severely affect crop production incur heavy yield loss in agriculture sector. As an ecofriendly pest management strategy, biocontrol using phytoseiid predatory gaining significant attention ...

a recently described species of dysdercus, named dysdercus stehliki schaefer, 2013 (hemiptera: heteroptera: pyrrhocoridae), found in viçosa, minas gerais state, brazil, feeds upon the seeds of fallen fruits of sterculia chicha a. st. hil. (malvales: sterculiaceae). the biology and immature stages’ descriptions of d. stehliki were assessed in two environments: laboratory and field. individuals o...

Rhodnius ecuadoriensis is the second most important vector of Chagas Disease (CD) in Ecuador. The objective of this study was to describe (and compare) the life cycle, the feeding and defecation patterns under laboratory conditions of two populations of this specie [from the provinces of Manabí (Coastal region) and Loja (Andean region)]. Egg-to-adult (n = 57) development took an average of 189....