| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Subclass: | Pterygota |
| Division: | Endopterygota |
| Order: | Hymenoptera |
| Family: | Megachilidae |
- Subfamily
- Genus
- species – Common Name
- Lithurgus
- apiformis, atratus, australior, chrysurus, dentipes, gibbosus, lissopoda, littoralis, nigroabdominalis, ovoabdominalis, rubricatus, rufipes, taprobanae, tiwarii, veeravaliensis –
- Trichothurgus
- aterrimus, dubius, piedrabuenae –
Megachilinae
- Anthidium
- cognatum, emarginatum, lupinellum, maculifrons, maculosum, manicatum, minus, mormonum, oblongatum, paroselae, pecosense, porterae, psoraleae, punctatum –
- Anthocopa
- abjecta, anipuncta, anipuncta, anonyma, bifoveolata, bipartita, bytinskii, cathena, copelandica, cypriaca, daniana, duckeana, furcula, glasunovi, grumi, hartliebi, hemisphaerica, idalia, indostana, leiocephala, matheranensis, mocsaryi, papaveris, perezi, rubricrus, rupestris, saundersi, picicornis, semirubra, serrilabris, singularis, uncaticornis, unispinna, urfensis, wadicola, wahrmani, yermasoyiae –
- Ashmeadiella
- aridula, astragali, australis, basalis, bigeloviae, breviceps, bucconis, cactorum, cactorum, californica, coloradensis, coquilletti, curriei, denticulata, echinocerei, eurynorhyncha, floridana, florissantensis, foveata, gillettei, haemotopoda, holtii, inyoensis, lutzi, maxima, meliloti, opuntiae, pronitens, rhodognatha, salviae, sculleni, sinuata, timberlakei, xenomastax –
- Chalicodoma
- campanulae, discorhina, ericetorum, exilis, georgica, lucidiventris, manicata, muraria, mystaceana, occidentalis, parietina, rugifrons, sculpturalis – Resin Bee
- Chelostoma
- campanularum, florisomne, fuliginosum, maxillosum, nigricorne, philadelphi, rapunculi –
- Coelioxys
- acuminata, acuta, apiculata, aurolimbata, conica, elongata, hebescens, inermis, lanceolata, mandibularis, quadridentata, rufescens, simplex, temporalis, umbrina, vectis –
- Creightonella
- albisecta, amabilis, frontalis –
- Dianthidium
- arizonicum, concinnum, cressonii, curvatum, desertorum, discors, dubium, heterulkei, implicatum, marshi, parkeri, parvum, platyurum, plenum, pudicum, simile, singulare, subparvum, subrufulum, texanum, ulkei –
- Dioxya
- armata –
- Ensliniana
- bidentata, cuspidata –
- Herides
- –
- Hoplitis
- bispinosa, flabellifera, grossepunctata, heinrichi, holmboei, homalocera, illustris, lapidaria, libanensis, linguaria, lysholmi, matheranensis, pallicornis, peralba, pici, rufimana, recticauda, stichi, testaceozonata –
- Liothyrapis
- circumscripta –
- Megachile
- albicilla, alpicola, analis, bombycina, brevis, centuncularis, circumcincta, fennica, frigida, geminata, inermis, janssoni, kuennemanni, lagopoda, lapponica, ligniseca, maxillosa, montezuma, nigriventris, obscura, pugnata, pyrenaea, relativa, rotundata, versicolor, willughbiella –
- Micranthidium
- –
- Osmia
- cornifrons, lignaria, uncinata, xanthomelana – Mason Bee
- Prochelostoma
- philadelphi –
- Rhodanthidium
- septemdentatum, siculum, sticticum –
- Serapista
- denticulata –
- Stelia
- –
- Torridapis
- ducalis, turneri –
- Trachusa
- autumnale, bequaerti, cordaticeps, crassipes, dorsalis, fontemvitae, gummifera, interdisciplinaris, larreae, manni, occidentale, perdita, ridingsii, timberlakei, zebrata –
Lithurginae
