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Fig. 1. Features of Arachnoscelis n. sp. (A) Male adult insect on human
arm (photo by D. E. Klimas); scale bar, 
15 mm. (B) One calling song of
two pulse trains, more typically one train; scale bar, 20 ms. (C) High
resolution of a mid-train pulse; scale bar, 100 µs. (D) Smoothed power
spectrum of calling song. (E) ZC analysis of the pulse in D. Note how the
frequency drops for the driven cycles (black arrows), indicating a decrease in
velocity, then increases during decay (red arrow), suggesting that the scraper
has disengaged from the file (event indicated by red asterisks); note that the
file's resonant frequency is normally higher than that of the calling song.
Blue arrows show the free decay of the pulse. Q, quality factor.
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