| In systematic list of taxon names |
| Symbol | Meaning |
 | clickable icon; displays an image of the habitus : dorsal view |
 | clickable icon; displays an image of the habitus : lateral view |
 | clickable icon; displays an image of the habitus : ventral view |
 | clickable icon; link to determination key |
| - | extinct |
| B | found in Belgium |
| B+ | found in Belgium, only in artificial circumstances |
| F | nomenclatural gender of name is Feminine |
| i | nomen 'inutisable' (unavailable name) |
| il | in litteris (personal communication) |
| is | incertae status (doubtful ranking) |
| M | nomenclatural gender of name is Masculine |
| N | nomenclatural gender of name is Neuter |
| nc | nomen conservandum (conserved name) |
| nd | nomen dubium (dubious name) |
| nn | nomen nudum (nude name) |
| sd | species dubia (doubtful species) |
| sdi | species dubia et inquirenda |
| si | species inquirenda (species to be investigated) |
| sl | sensu lato (in broad sense) |
| ss | sensu stricto (in narrow sense) |
| tt | taxon typicus |
| u | unavailable name |
| In list of synonyms |
| Symbol | Meaning |
| =- | extinct |
| =: | name incorrectly applied by subsequent author |
| =? | doubtful synonym |
| =c | nomen conservandum (conserved name) |
| =e | synonym ex errore (by error) |
| =h | homonym |
| =i | nomen 'inutisable' (unavailable name) |
| =in | included synonym |
| =ios | incorrect original spelling |
| =iss | incorrect subsequent spelling |
| =laps | lapsus |
| =n | nomen nudum (nude name) |
| =nd | nomen dubium (dubious name) |
| =no | nomen oblitum (forgotten name) |
| =p | partial synonym |
| =r | rejected name |