FIGURE 1 in Descriptions of larvae of three species of Hydropsyche (Trichoptera, Hydropsychidae) from China

FIGURE 1. Types of gills and types of secondary setae in larvae of Hydropsyche spp. 1A, bifid-stemmed gill on abdomen; 1B, single-stemmed gill on abdomen; 1C, portion of head of H. arion, dorsal; 1D, portion of pronotum of H. trifora, dorsal; 1E, setae of abdomen of segment VIII of H. simulata, left lateral; 1F, setae of abdomen of segment VI of H. arion, right lateral; 1G, setae of abdomen of segments VIII and IX of H. arion, ventral; 1H, setae of right hind leg of H. arion, posterolateral; 1I, setae of anal prolegs of H. simulata, left lateral. ap. = acuminate peg-like setae; hl. = hair-like setae; ls. = long-slender setae; sh. = scale-hair setae; sl. = spike-like setae; tp. = truncate peg-like setae.