| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Isophrictis leptidella | (Turati, 1924) | species | Synonym | ||
| Isophrictis senicula | (Meyrick, 1913) | species | Synonym | ||
| Isoplenia trisinuata | Warren, 1897 | species | Accepted | ||
| Isoplenodia arabukoensis | Sihvonen & Staude, 2010 | species | Accepted | ||
| Isoplenodia arrogans | Prout L. B., 1932 | species | Accepted | ||
| Isoplenodia degener | Prout L. B., 1932 | species | Misapplied | ||
| Isoplenodia kisubensis | Sihvonen & Staude, 2010 | species | Accepted | ||
| Isoplenodia vidalensis | Sihvonen & Staude, 2010 | species | Accepted | ||
| Isorropus funeralis | (Kenrick, 1914) | species | Accepted | ||
| Isorropus lateritea | Toulgoët, 1957 | species | Accepted | ||
| Isorropus nigrodorsalis | Le Cerf, 1921 | species | Synonym | ||
| Isorropus rectiscissa | Rothschild, 1924 | species | Synonym | ||
| Isorropus sanguinolenta | (Mabille, 1879) | species | Accepted | ||
| Isorropus splendidus | Toulgoët, 1957 | species | Accepted | ||
| Isorropus tricolor | Butler, 1880 | species | Accepted | ||
| Isospidia angustipennis | (Warren, 1904) | species | Accepted | ||
| Isospidia brunneola | (Holland, 1893) | species | Accepted | ||
| Isospidia glaucinoe | (Hampson, 1914) | species | Synonym | ||
| Isospidia hylaeina | (Aurivillius, 1925) | species | Synonym | ||
| Isospidia torulus | Watson, 1965 | species | Synonym | ||
| Isozinara pallidifascia | Janse, 1964 | species | Accepted | ||
| Istrianis armatus | Bidzilya & Karsholt, 2015 | species | Accepted | ||
| Istrianis brucinella | (Mann, 1872) | species | Accepted | ||
| Istrianis epacria | (Bradley, 1965) | species | Accepted | ||
| Istrianis finbosella | Bidzilya & Karsholt, 2015 | species | Misapplied |