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FIGURE 6 in The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America
Wisseman, Robert W.;
Morse, John C.;
Colbo, Murray H.;
Weaver Iii, John S.
FIGURE 6. Occurrence of 5 development stages of Palaeagapetus nearcticus in British Colombia (B), Washington (W), Mary's Peak in Oregon (M), other localities in Oregon (O), and California (C) in 1948–2012. Grey bands indicate the supposed main annual life cycle in all study sites.
Published as part of Ito, Tomiko, Wisseman, Robert W., Morse, John C., Colbo, Murray H. & Weaver Iii, John S., 2014, The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America, pp. 201-221 in Zootaxa 3794 (2) on page 208, DOI: 10.11646/zootaxa.3794.2.1, http://zenodo.org/record/4914900