Figures 22–25. Scanning electron microscopy images of species included in the current study. Fig. 22. Wagneriana dimastophora, male copulatory bulb, mesal. Fig. 23. Micrathena nigrichelis, female eye region, dorsolateral. Arrow indicates the post-ocular macroseta. Fig. 24. Gasteracantha. cancriformis, female carapace, dorsolateral. Fig. 25. Micrathena plana, female carapace, dorsolateral. Abbreviations: ALE, anterior lateral eye; AME, anterior median eye; BL, bulb length; BW, bulb width; C, conductor; CH, cephalic hump; E, embolus; LSR, lateral setae rows; MA, median apophysis rim; P, pleura; PLE, posterior lateral eye; PM, paramedian apophysis; PME, posterior median eye; R, radix; TA, terminal apophysis; TF, thoracic fovea; TP, tegular projection.

Published as part of Magalhães, Ivan L. F. & Santos, Adalberto J., 2012, Phylogenetic analysis of Micrathena and Chaetacis spiders (Araneae: Araneidae) reveals multiple origins of extreme sexual size dimorphism and long abdominal spines, pp. 14-53 in Zoological Journal of the Linnean Society 166 (5) on page 39, DOI: 10.1111/j.1096-3642.2012.00831.x, http://zenodo.org/record/5408308