(a)
(b)
(c)
(d)
Figure 3: Pimachrysa fusca Adams (Joshua Tree National Park, Riverside Co., CA), thoracic (a, b) and abdominal (c, d) integument and setae, dorsal. Note slight differences in size of setae and chalazae between second (a, c) and third (b, d) instars. All images are the same magnification (×100).