A new species Tanytydeus beyzavii sp. nov. (Acari: Paratydeidae) is described and illustrated from soil under plants in Iran. Leg setation is presented for the genus, as is a key to species. The genus Hexatydeus syn. nov. is synonymised with Tanytydeus because the former represent nymphal stages of Tanytydeus. 

In African savannas, large mammals, both wild and domestic, support an abundant and diverse population of tick ectoparasites. Because of the density of ticks and the many pathogens that they vector, cattle in East Africa are often treated with acaricides. While acaricides are known to be effective at reducing tick burdens on cattle, their effects on the overall abundance and community compositi...

The developmental progress of silverleaf whitefly (Bemisia argentifolii) 3rd instars and 4th instar/pharate adults was monitored using a tracking system that had been designed to identify synchronous individuals in another species of whitefly, the greenhouse whitefly, Trialeurodes vaporariorum. When reared on greenbean under conditions of LD 16:8 and a temperature of 26 +/- 2 degrees C, the bod...

the functional response is an important characteristic of predator–prey interactions that determinate which predator species or stage classes of predator is the most effective for pest control. host plant morphological characteristics are the effective factors on predator’s functional response. the objective of this study was to determine whether differences in trichome density of wheat cultiva...

pistachio green stink bug, acrosternum heegeri, is one of the most injuriously important and key pests of pistachio in iran. this pest causes major damages to fruits by feeding on them, and transmitting fungo desease nematospora coryli as studied on a selected population. biological characteristics and fertility life table parameters of the insect were collected from rafsanjan area. the bugs we...

the effect of four concentrations (0.5, 1, 2.5, and 5 mg/lit) of two insect growth regulators ‎‎(igrs) of buprofezin and pyriproxifen on 1 and 4-day eggs, different nymphal instars, and ‎pupae of trialeurodes vaporariorum (homoptera: aleyrodidae), was studied at 26 ± 2 °c, 80 ± ‎‎5% rh, and 16: 8 (l: d) on lantana camara in the greenhouse. the effect of both igrs was ‎positively related to incr...

The cicada Meimuna mongolica (Distant) (Hemiptera: Cicadidae) is one of the most important pests of economic forest in Guanzhong Plain of Shaanxi Province, China. Information about ecological characteristics and some sustainable control measures of this species is urgently required for its control. In this study, nymphal instars, morphological variation, vertical distribution, and population de...

Recent research on the treehopper tribe Telamonini has focused on their classification and Nearctic distribution but little has been published on their biology, including detailed information on their host plants as well as data on their nymphal stage. Any studies including host plant data have emphasized adult records (often unreliable due to their movements), largely ignoring the nymphs, whic...