| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Orthogonioptilum adustum | Jordan, 1922 | species | Accepted | ||
| Orthogonioptilum andreasum | Rougeot, 1967 | species | Accepted | ||
| Orthogonioptilum apium | Basquin, 1995 | species | Accepted | ||
| Orthogonioptilum arnoldi | Hering, 1932 | species | Synonym | ||
| Orthogonioptilum bergeri | Rougeot, 1962 | species | Accepted | ||
| Orthogonioptilum bernardii | Bouyer, 1990 | species | Accepted | ||
| Orthogonioptilum bernaudi | Darge, 1996 | species | Accepted | ||
| Orthogonioptilum bimaculatum | Rougeot, 1962 | species | Accepted | ||
| Orthogonioptilum bouyeri | Darge, 1990 | species | Accepted | ||
| Orthogonioptilum brunneum | Jordan, 1922 | species | Accepted | ||
| Orthogonioptilum caecum | Darge, 2003 | species | Accepted | ||
| Orthogonioptilum chalix | Jordan, 1922 | species | Accepted | ||
| Orthogonioptilum chaminadei | Darge, 1996 | species | Accepted | ||
| Orthogonioptilum concordia | Bouyer, 1992 | species | Accepted | ||
| Orthogonioptilum conspectum | Rougeot, 1962 | species | Synonym | ||
| Orthogonioptilum crystallinum | Darge, 1993 | species | Accepted | ||
| Orthogonioptilum csomaense | Bouyer, 1992 | species | Accepted | ||
| Orthogonioptilum dallastai | Darge, 1988 | species | Accepted | ||
| Orthogonioptilum dargei | Basquin, 1992 | species | Accepted | ||
| Orthogonioptilum deletum | Jordan, 1922 | species | Accepted | ||
| Orthogonioptilum diabolicum | Rougeot, 1971 | species | Accepted | ||
| Orthogonioptilum dollmanni | auct. | species | Misapplied | ||
| Orthogonioptilum emmanuellae | Basquin, 1995 | species | Accepted | ||
| Orthogonioptilum exspectatum | Darge, 1975 | species | Synonym | ||
| Orthogonioptilum falcatissimum | Rougeot, 1971 | species | Accepted |