Gregarinida; NEMATOMORPHA-; Hydracarina; INSECT-HOSTS; Trichoptera; ITALY-; Alps, east; Trichopteran host, parasite records Microsporida; INSECT-HOSTS; Allogamus auricollis (Trichoptera); New host record; ITALY-; Alps, east; Trichopteran host, parasite records Peritricha; ASSOCIATIONS-; Trichoptera; Epibiont records; ITALY-; Alps, east; Trichopteran host, parasite records Gordius villoti; INSECT-HOSTS; Trichoptera; Records, Italy Philodina; ASSOCIATIONS-; Trichoptera; ITALY-; Alps, east; Trichopteran hosts, epibiont records Agriotypus armatus; INSECT-HOSTS; Silo nigricornis & Silo pallipes (Trichoptera); Records; ITALY-; Alps, east; Records from trichopteran host Allogamus auricollis; PROTOZOAN-PARASITES; Microsporida; New host record, Italy Ithytrichia lamellaris; ITALY-; Alps, Prealpi Venete; First record for Italy Microptila minutissima; Rhadicoleptus alpestris; GENITALIA-; Morphology, new drawings Synagapetus krawanyi; Tinodes rostocki; ITALY-; Alps, Alpi Giulie; First record for Italy TRICHOPTERA-; CHECKLISTS-; Update, eastern Italian Alps; ASSOCIATIONS-; Peritricha (Protozoa) & Rotifera; Epibiont records; PARASITES-; ARACHNID-PARASITES; Hydracarina; NEMATOMORPHAN-PARASITES; HYMENOPTERAN-PARASITES; Agriotypus armatus; Records; PROTOZOAN-PARASITES; Gregarinida & Microsporida; Records including 1 new host record; ZOOGEOGRAPHY-; ITALY-; Alps, east; Checklist update including 20 first records; Genitalia, parasites including 1 new record & epibionts none