Seasonal Variation in Whole-Body Elemental Concentrations and Excreta Production of a Riparian Orb-Weaving Spider (Larinioides cornutus)

Posted by
  Seasonal Variation in Whole-Body Elemental Concentrations and Excreta Production of a Riparian Orb-Weaving Spider (Larinioides cornutus) ABSTRACT Predators influence nutrient cycling by assimilating elements from their prey and returning nutrients to ecosystems via excretion and discarded prey remains. However, seasonal variation in the contribution of predators to nutrient cycling remains poorly understood, particularly for terrestrial arthropod predators such as spiders. We examined temporal variation in whole-body elemental concentrations, excreta C and N concentrations, and cumulative excreta output in a riparian orb-weaving spider ( Larinioides cornutus ) across the growing season of 2024. Adult females were collected across seven sampling periods spanning mid-June to early October, and whole-body concentrations of macronutrients (carbon [C], nitrogen [N], phosphorus [P]) and multiple trace elements were quantified. Whole-body N and P concentrations, and several trace elemen...

On six poorly known species of Thomisidae (Arachnida: Araneae) described by Ludovico di Caporiacco

Posted by

 


On six poorly known species of Thomisidae (Arachnida: Araneae) described by Ludovico di Caporiacco

Abstract

Illustrations are provided for the type material of six species described by Caporiacco: Heriaesynaema flavipes Caporiacco, 1939; Oxytate jannonei (Caporiacco, 1940); and Synema variabile Caporiacco, 1939 from Ethiopia; Misumenoides rubrithorax Caporiacco, 1947; and Misumenops candidoi (Caporiacco, 1948) from Guyana; and Synema bishopi Caporiacco, 1955 from Venezuela. Synema bishopi is misplaced in this genus, but its correct placement is left for a future revision.

Marusik, Y.M. (2025) On six poorly known species of Thomisidae (Arachnida: Araneae) described by Ludovico di Caporiacco. Zootaxa, 5723 (3), 437–443. https://doi.org/10.11646/zootaxa.5723.3.8