Persian Journal of Acarology
Volume:11 Issue: 1, Winter 2022

AnewmonotypicgenusandspeciesAndrelorryiahajiqanbarigen.etsp. nov., aredescribedfromWesternSiberia, Russia. The new genus was previously mentioned in literature as Generic Unit TY2 and differs from Nudilorryiaby the absence of the seta l”on palptibia and absence of the solenidion on tarsus II.

This paper reports on a new species of mite of the genus Gaeolaelaps from Western Siberia, Russia, Gaeolaelaps hajiqanbariJoharchi & Nematisp. nov. collected from soil of a salt marsh in vicinity of Omsk. The new species is described, and illustrations provided based on morphological characters of the adult female.

In this research, a new species Proctotydaeus hajiqanbari Darbemamieh, Ahadiyat & Farmahiny-Farahanisp. nov. is described from the galleries of two pest bark beetles Scolytus amygdali Guérin-Méneville and Orthotomicus erosus(Wollaston) from Iran. Mentioned galleries collected from damaged apricot and pine trees in Tehran province.

The water mite communities of the River Drawa were investigated in the year 1988. The samples were taken in April, July and September. A total of 1349 specimens belongingto 52 species of water mites were collected. We decided to distingush Lebertia cf. gibbosa despite of its synonymization with L. ineaqualis, because we collected both species and found sound distinguishing features. The status of the species should be rechecked. The most abundant species was Hygrobates setosus (13.4%) followed by Sperchon papillosus (10.5%), S. clupeifer (9.8%), Torrenticola amplexa (8.5%),Hygrobates longipalpis and Limnesia maculata (each 7.0%), Hygrobates calliger(5.8%), Lebertia ineaqualis(5.2%)andArrenurus albator(4%). The largest synecological group was rheophiles and rheobionts (71.1% specimens) followed by lake species (16.5%), small water bodies species (11.9%), species from astatic waters and crenophilous species (0.2% specimens). The most stagnophilous species were connected with marginal pools with and muddy bottom covered by plants and sections of river after lake or spring. More specimens (894) and species(31) were caught in the lotic zone of the river than in the lentic zone (455 specimens, 28 species). Rheophilous species were dividedinto two groups: one connected with lotic zones but with rather slow-flowing water and sandy bottom, and another one connected with fast-flowing water with gravel and stones on the bottom, partially covered by mosses.

Larvae of water mite,Eylais extendens(Müller,1776)(Acari, Eylaidae)were collected from water burrowing beetles (Noteridae), predaceous diving beetles (Dytiscidae) and variegated mud-living beetles (Heteroceridae) from Guilan province, Iran, captured by light traps. The redescription and illustration of taxonomic characters of the larva were made based on specimens collected from Guilan province, Northern Iran. This is the first record of larval hosts of E. extendensfrom Iran.

The predatory mite Proprioseiopsislindquisti completed its development and reproduced successfully on three eriophyid mites, Aculops lycopersici, Aceria mangiferae, and Aculus fockeui,under laboratory conditions. Feeding on A. mangiferae and A. fockeui resulted in shortdevelopmental and long oviposition periods and wasa suitable food for predator oviposition asitresulted in high fecundity, gross and net reproductive rates. Feeding on A. lycopersici elongated the developmental period and was less favorable for the predator asit gave the lowest rate of oviposition and net reproductive rates. Higher intrinsic rates of increase, and finite rates of increase for P. lindquistiwere recorded on A. mangiferaewhile A. lycopersiciand A. fockeui produced lower values.

Leaf domatiaas a habitat-produced structure is considered to moderate the interaction intensity among guild parties. We studied whether domatia of sweet pepper (Capsicum annum) leaves could reduce the adverse effects of predation of a phytoseiid on behalf of an intraguild predatory mite on a phytoseiid intraguild prey, and a tetranychid extraguild prey. In the domatia-provided treatments where Amblyseius swirskii(Athias-Henriot) females were considered as predator, significantlyfewerPhytoseiulus persimilisAthias-Henriot juveniles were killed,and eaten in comparison with the treatments without domatia. The predation rate of A. swirskiiwas affected by the domatia i.e.the number of eaten P. persimiliswas significantly lower on patches with four domatia rather thanthose with no domatium, however, no significant difference was observed between those in patches with two,and four domatia. Both natural, and artificial domatia could reduce the predation rate on P. persimilisjuveniles. When P. persimilisfemales were considered as predators, the number of A. swirskiikilled juveniles was affected neither by presence nor by the number of leaf domatia. The number of eaten Tetranychus urticaeKoch eggs/larvae in patches with either of the intraguild predator species was not affected by the presence, the number, and the type of domatia. We suggest that leaf domatia could affect the survival of phytoseiid predatory mites as the guild participants even when the highly aggressive intraguild predator, A. swirskii, enterssuch structures.

Our study aimed to identify and characterize the common species of house dust mites collected from different areas in Assiutcity, study their seasonal variation, and effects of some housing criteria on their prevalence. This could help in the assessmentof the magnitude of thecurrentsituation inthis locality and assist inimplementing appropriate investigations and diagnostic tools which in turn offersa better quality of life toallergy sufferers in our study locality as well as for others. Dust samples were collected from eight regions representing the two main districts of AssiutCity as systemic random samples. For proper dust collection we used bothavacuum cleaner andahand sweeper from different rooms of each house(bedrooms, mattresses, floor, bedding and living rooms). Also, twomethods were used for mite extraction: Kero-float method and modified Berlese-Tullgren funnel. Light microscopy as well as SEM were used to identify different mite species with the aid of an identificationkey. The overall prevalence of house dust mites in collected samples was 94 positive samples per 300 houses examined in this study. Seasonal variations significantly affected the prevalence of house dust mites;the highest frequency was noticed during winter (66.7%) and the least frequency was noticed during summer (13.3%). Kero-float method was more sensitive and accurate than modified Berlese-Tullgren funnel in mites'extraction in a given sample (100% and 47.9% respectively). The most frequently isolated species were Dermatophagoides farinae (80.9%) and D.pteronyssinus(58.5%) followed by stored products mite, Tyrophagus putrescentiae (50%) and predatory mite, Cheyletus malaccensis (31.9%) while the least frequent species was Dermanyssus gallinae (21.3%). Mixed species were detected in 48 (51.1%) of the positive samples.Some housing criteria: age of the house, damp or moldystains on flooror on other indoor surfaces (walls, ceiling), presence of carpets/rugs and aeration style (sunny/shady) have significantly affected the prevalence of house dust mites in different houses.We concluded thatalthough Assiutis the driest city in Egypt with low relative humidity, whichis an essential factor in the survival of mites, there is significantprevalence of house dust mites (31.3%). Housing criteria significantly affected the presence of HDMs

Mite pests cause significant postharvest losses to the world's food supply, where substandard storage conditions and lack of effective control enable mites to replicate. Therefore, the aim of this study was to assess mite infestation risk and determine the acaricidal efficacy of some monoterpenes, phenylpropenes, and sesquiterpenes against one of the most prevailing mite pests found in Egyptian storage facilities. A screening mite survey was conducted on bran and flour samples obtained from commercial stores and flour mills in Alexandria, Egypt between June and December 2019. Eight mite taxa belonging to five families were identified. Tyrophagus putrescentiae (Schrank) (Acaridae) and Suidasia medanensis Oudemans (Suidassidae) were the most dominant species, each representing ≃ 40% of the total mite count (142,988 individuals). Cheyletus malaccensis Oudemans (Cheyletidae) was the most abundant predatory mite recorded in both storage sites. The contact toxicity of eight compounds belonging to monoterpenes, phenylpropenes, and sesquiterpenes was evaluated against the adults of S. medanensis. trans-Cinnamaldehyde showed the highest acaricidal activity, followed by eugenol, cuminaldehyde, (Z,E)-nerolidol and farnesol with LC50 values of 0.007, 0.028, 0.036, 0.042 and 0.048 mg/cm2, respectively, after 24 h of treatment. The toxicity of all compounds against the adults increased after 48 h, indicating that the effectiveness of compounds improved with increase of exposure time. On the other hand, the tested compounds showed different levels of repellent activity against S. medanensis adults after 1 and 6 h of treatment. The highest repellent effects were observed in the case of (Z,E)-nerolidol and farnesol displaying repellency of 92.0–96.3 and 81.4–92.1%, respectively, after 1 h of treatment. In contrary, (-)-citronellal and cuminaldehyde showed the lowest repellent effect. These results indicate that the tested compounds, particularly phenylpropenes and sesquiterpenes, could be effective candidates for the management of S. medanensis in storage products.

The broad mite Polyphagotarsonemus latus (Banks) is a polyphagous pest with a cosmopolitan distribution. The combined application of botanical pesticides and entomo-acaropathogenic fungi may serve as an eco-friendly approach in controlling the mite. In this study, the Mimosa pudica (Fabales: Fabaceae)leaf aqueous extract (MpAE) was initially tested to determine its effects on the mycelial growth, sporulation, and conidia viability of the entomo-acaropathogenic fungus Beauveria bassiana(Hypocreales: Cordycipitaceae). Thecompatibility was then determined based on the biological index (BI) value. The bioefficacy of MpAE and B. bassiana at various concentrations was evaluated against P. latus,both alone and in combinations. Each treatment was sprayed into an arena containing a citrus leaf disc and gravid females of P. latus. The mortality and oviposition rate of the females were observed until 120 h after application. The results showed no reduction in B. bassiana mycelial growth, sporulation, and conidia viability when MpAE was incorporated into the culture medium. The BI value rangedfrom 100.01 to 136.30, indicating that MpAE was highly compatible with B. bassiana. The individual and combined applicationsof MpAE and B. bassiana significantly increasedthe mite mortality and simultaneously inhibitedthe mite oviposition rate. The mite mortality variedfrom 90 to 100% at 120 h after application in the treatment groups. The mite oviposition rate was significantly decreased, ranging from 11.50 to 29.00 eggs in the treatment groups, while it was 57.25 eggs in control. Therefore, the application of MpAEand B. bassianapropose a valuable alternative to integrate into pest management programs.

Crude ethyl acetate extracts of six entomopathogenic fungi, Hirsutellaspecies were screened against Tetranychus urticaeKoch (Acari: Tetranychidae). In this study, all extracts presented potential to control eggs and adult female activities. Laboratory evaluation of the crude extracts of Hirsutella citriformis,H. guignardii,H. petchabunensis,H. satumaensis, H. saussureiand H. thompsoniishowed slightly toxicityand median lethal concentration (LC50) values of 7,579.94, 8,910.38, 8,579.45, 5,055.96, 1,555.46 and 44,197.85mg/L at 72 h after treatment against adult females of T. urticae, respectively. Related LC50values that exhibited on eggs were 12,701.86, 30,922.72, 10,870.96, 12,635.56, 9,244.59 and 22,676.66 mg/Lat 5 days after exposure. The most effective on T. urticaeeggs and adult females is H. saussurei. Moreover, all extracts deceased the fecundity of T. urticaeafter being fed with mulberry leaf discs treated the crude extract of sixspeciesofHirsutella under residual effect bioassay. The results suggest that the ethyl acetate extracts of Hirsutella citriformis,H. guignardii,H. petchabunensis,H. thompsonii, H. satumaensi andH. saussureihave the potential to be used for the control of T. urticaein the future.

Otobius megnini (Ixodida: Argasidae) is a cosmopolitan soft tick that parasitizes humans as well as domestic and wild animals. The larval and nymph stages of this tick usually feed by parasitizing in the ear canal. The material of this study consists of ticks collected during ear cleaning in approximately 496 people coming with the complaint of ear pain in state hospitals in Bulanik and Malazgirt districts of Muş province, eastern Turkey. As a result of microscopic examination performed on ticks collected from humans, O. megnini tick was determined and molecular identification was made for definitive diagnosis. The 16S rRNA gene fragment of the tick was amplified by PCR. Obtained PCR products were 360 bp. The PCR products were analyzed by sequence analysis and compared with the reference sequences in the BLAST and Genbank. A phylogenetic tree was created with MEGA 7 software using Maximum Likelihood model. As a result, the previously identified Otobius megnini in Turkey, was confirmed using molecular methods for the first time.