Specimens
Two spider individuals were collected, euthanized and fixed in 90% ethanol. We labelled voucher specimens with field numbers THC140 (first observation) and THC293 (fourth observation). We measured the specimen THC140 on millimeter paper (Fig. 2 A) to record thorax and cephalothorax length. While we have not collected the frog specimen observed during the predation, we have collected one individual from the same locality of the same species and recorded with the field number THC144. It has been euthanized, fixed with 90%, conserved in 70% alcohol and stored it at the University Center of SAVA Region (CURSA). Tissue biopsies of frogs and spider specimens are preserved in 90% alcohol and deposited at the Evolutionary Biology laboratory, Germany. We verified the frog identification based on DNA sequences of the 16S rRNA gene of the Mitochondrial DNA. We identified the spiders to genus level using available documents (Henon 2015).