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Extracted from: Baker J.R., (1975). Taxonomy of Five Nearctic Subgenera of Coelioxys (Hymenoptera; Megachilidae). The University of Kansas Science Bulletin Vol. 50, No. 12, pp.649-730.
FEMALE. Agrees with description and figures of Coelioxys edita except as follows: (1) Length 9-11.5 mm; (2) integument black; antenna, legs, tegula, venter of metasoma black to piceous; (3) pubescence white, golden on tarsi; (5) clypeus almost flat, very closely punctate, almost hidden by dense, 1.5 mm long, plumose setae and scattered erect setae; margin with 5 small evenly spaced denticles; (7) paraocular area hidden by dense, plumose setae 2.0 mm long; (8) rest of face closely punctured except for longitudinal median line, almost hidden by appressed, plumose setae; (10) ocellar area moderately to closely punctured; (12) vertex punctured as in Figure 21; (13) gena constricted ventrally, surface visible anteriorly; (15) mandible as in Figure 22E; (16) scutum closely punctured; anterior fascia sparse medially; (17) lateral surface of mesepistemum nearly to completely contiguously punctured, disc bare or with scattered, suberect setae; (18) scutellum sometimes with longitudinal median impunctate ridge (Fig. 37C); (19) axilla long (Fig. 37C); (22) tergum 1 with basal fascia inconspicuous; tergum 2 with foveal area unmodified; tergum 6 more slender than shown in Figure 38A (Fig. 38E); (23) sterna 1-5 moderately to sparsely punctured, punctures very shallow medially, surface shining; sternum 5 apically contiguously punctured with small punctures; sternum 6 elongate apically (Fig. 38E).
MALE. Agrees with description and figures of Coelioxys edita except as follows: (24) Length 9.5-11 mm; (25) integument as in female (2 above); (28) clypeal margin with 3 distinct denticles; (33) ocellar area as in female (10 above); (36) ventral half of gena hidden by dense setal fascia; (38, 39) mandible, scutum as in female (15, 16 above); (40) mesepisternum with lateral surface almost hidden in some specimens; (41-43) scutellum, axilla, metanotal setae as in female (18-20 above); (45) foveal areas of tergum 2 with small, raised, impunctate area (Fig. 25H); (46) sterna 1-4 with conspicuous fasciae posteriorly; sternum 4 carinate sub-apically, margin with 2 projections (Fig. 390); sternum 6 with mostly expanded, rather than plumose setae, heavily pigmented laterally (Fig. 39P); sternum 8 with base broadly rounded; genital armature with gonobase complete (Fig. 39Q).
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