FIGURES 17–21 in A comparative description of the larvae of Psychomyia pusilla (Fabricius 1781), Metalype fragilis (Pictet 1834), and Paduniella vandeli Décamps 1965 (Trichoptera: Psychomyiidae) and comments on the larvae of other species belonging to these three genera

FIGURES 17–21. Psychomyiidae spp., pronota, procoxopleurites, and proximal parts of prothoracic legs of instar V larvae, left lateral. (17) Psychomyia pusilla; (18) Metalype fragilis (larva from English population); (19) Paduniella vandeli. The arrows indicate the diagonal dark thickening. For procoxopleurite and procoxa, see figure 26; (20) Tinodes waeneri, no diagonal dark thickening; ventrolateral extensions (ve) of the pronotum are present. (21) Pad. vandeli, the arrows indicate the distal extremities of the diagonal dark thickenings of Fig 19.