| Species Reference | Comment | Distribution |
|---|---|---|
| Hahnia difficilis Harm 1966: 356, f. 29-35 | ||
| (PDF not available.) | (Dmf). | Central Europe |
| Iberina difficilis Lehtinen 1967: 240 | ||
| (PDF not available.) | (Tmf from Hahnia, rejected). | |
| Hahnia difficilis Miller 1971: 180, pl. XXX, f. 8-10 | ||
| (PDF not available.) | (mf). | |
| Hahnia difficilis Heimer & Nentwig 1991: 370, f. 961 | ||
| (PDF not available.) | (mf). | |
| Hosts |
|---|
| None noted here. |
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