| No Common Name | Megachile | addenda | | 6 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Apical Leaf-cutter Bee | Megachile | apicalis | | 9 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Common Little Leaf-cutter Bee | Megachile | brevis | | 36 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Bellflower Resin Bee | Megachile | campanulae | | 15 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| No Common Name | Megachile | centuncularis | | 1 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Elegant Leaf-cutter Bee | Megachile | concinna | | 7 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Slender Resin Bee | Megachile | exilis | | 23 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| No Common Name | Megachile | frugalis | | 10 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Small-handed Leaf-cutter Bee | Megachile | gemula | | 11 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| No Common Name | Megachile | georgica | | 4 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Unarmed Leaf-cutter Bee | Megachile | inermis | | 2 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Hostile Leaf-cutter Bee | Megachile | inimica | | 10 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Broad-handed Leaf-cutter Bee | Megachile | latimanus | | 6 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Flat-tailed Leaf-cutter Bee | Megachile | mendica | | 50 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Silver-tailed Petal-cutter Bee | Megachile | montivaga | | 7 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| No Common Name | Megachile | mucida | | 6 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Petulant Leaf-cutter Bee | Megachile | petulans | | 21 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Thumbed Leafcutter Bee | Megachile | policaris | | 1 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Pugnacious Leaf-cutter Bee | Megachile | pugnata | | 27 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| No Common Name | Megachile | relativa | | 4 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Alfalfa Leafcutter Bee | Megachile | rotundata | | 23 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Giant Resin Bee | Megachile | sculpturalis | | 200 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Texas Leaf-cutter Bee | Megachile | texana | | 16 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |
| Carpenter-mimic Leaf-cutter Bee | Megachile | xylocopoides | | 194 | Bees | Megachilidae | Hymenoptera | Insecta | Animalia |