Figure 2
EPG waveforms for A. americanum feeding approx. 36 h after attachment to calf. (A–C) Compressed view of one event of Aa1, showing appearances of successive episodes during the progression of the event through three rows of waveforms. Labelled boxes contain waveform segments that are expanded in parts with the same letter label. Scale bar in part (B) same for parts (A,C). Windaq gain 64×. (D) Two episodes of Aa1 showing four out of four types, Aa1b, Aa1c and AaR1, but with Aa removed from each label to save space. (E) A later episode of Aa1 showing lengthened Aa1b. (F) First third of one event of Aa2, showing three out of five types, Aa2b, Aa2c, and the first part of AaR2. (G) Last third of one event of Aa2, showing last part of AaR2 and all of Aa2d. See narrative for further descriptions of waveform names. Scale bar in part D and Windaq gain of 128 × same for parts (D–G).
