EXPLANATION OF PLATE XXV. 



Fig. I. — Epipsocus costalis, fore-wing. 



,, 2. — Formicaleon hivittatum, tip of abdomen. 



,, 3. — Epipsocus conspersus, fore-wing. 



,, 4. — Formicaleon hivittatum, pronotum. 



,, 5. — Kolhea punctata, fore- wing. 



,, 6. — Cryptoperla diver gens, head. 



,, 7. — Psocus nirvanus, fore-wing. 



,, 8. — Cryptoperla divergens, ventral plate. 



