spiders are poorly studied in iran, based on the latest studies the spider fauna of iran includes 394 species in 126 genera belonging to 36 families. considering the climatic and geographical variation of iran, it can be assumed that iran has a rich spider fauna compared to the adjacent countries. the present study seeks to take a new step in the ongoing active research of iranian spider fauna....

The rates of oxygen consumption and carbon dioxide release of primitive hunters and weaver spiders, the Chilean Recluse spider Loxosceles laeta Nicolet (Araneae: Sicariidae) and the Chilean Tiger spider Scytodes globula Nicolet (Araneae: Scytodidae), are analyzed, and their relationship with body mass is studied. The results are compared with the metabolic data available for other spiders. A lo...

Reduced-representation sequencing (RRS) has made it possible to identify hundreds thousands of genetic markers for phylogenomic analysis the testing phylogenetic hypotheses in non-model taxa. The use customized probes capture (i.e., ultraconserved element (UCE) approach) further boosted efficiency collecting markers. Three UCE probe sets pertaining spiders (Araneae) have been published, includi...

The male of Hymenoepimecis japi (Hymenoptera, Ichneumonidae, Pimplinae) is described and illustrated. The specimen was collected in a modified web (cocoon web) of Leucauge roseosignata (Araneae, Tetragnathidae) made in a laboratory. Both, host and parasitoid were collected in Reserva Biológica Serra do Japi, located in Jundiaí, São Paulo, Brazil.

the objective of the study was to determine the effect of the process of natural bioremediation, and bioremediation supported by zb-01 microbiological preparation on the occurrence of collembola and araneae in conditions of soil contaminated by petroleum-derived substances. the studies were conducted in 2010-2012, in the area of the experiment station of the university of agriculture, near krak...

While food abundance is known to limit bird populations, few studies have simultaneously examined both temporal and habitat-related variation in food abundance for ground-foraging birds. We surveyed ground-dwelling arthropods throughout the breeding season and in three forest harvest types (clearcut, selection, and shelterwood stands managed for spruce, fir and hemlock) at the Penobscot Experim...

A short investigation was devised by Department of Agricultural Entomology, Tamil Nadu University, Coimbatore in 2022 to document the arthropod composition sugarcane (Saccharum officinarum L.) ecosystem. Arthropod fauna collected from ecosystem farmers’ field at Puthur district, weekly intervals. Totally, 2,310 individuals subclass Pterygota were and among them most specimens belonged Exopteryg...

Male pedipalp characters support the hypothesis that there are potentially at least three clades within European Xysticus s.l. C.L. Koch, 1835 (Araneae: Thomisidae). These clades correspond with the older, but currently synonymised, genera Proxysticus Dalmas, 1922 and Psammitis Menge, 1875. Synapomorphies in the male pedipalp shared with other thomisid genera (e.g. Coriarachne Thorell, 1870, Oz...

A new species of fossil ray spider, Baalzebub? mesozoicum n. sp. (Araneae: Theridiosomatidae), is described from Mesozoic amber from the Cretaceous (Middle Cenomanian to Early Santonian) deposits of La Garnache, Vendée, NW France. The palpal structures, especially the highly sclerotized claw-shaped retrolateral ‘paracymbium’ originating as an outgrowth of the cymbium basally and the basal cymbi...