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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 11-15.5 mm; (2) integument black; antenna, tegula, piceous; legs piceous to dark ferruginous; (4) ocu¬lar hairs short (about 0.05 mm); (5) clypeus slightly convex to rounded horizontally, rugose, shining; surface visible except for longitudinal median line covered with short, appressed setae, lateral and dorsal margins bare; margin with three strong denticles (Fig. 36B); setal fringe scant; (7) paraocular area visible between setae about 0.3 mm long; (8) rest of face closely, coarsely punctured except for irregular mediosagittal line; (10) ocellar area closely punctured; (11) interocellar and ocelloccipital distances subequal, less than ocellocular distance; (12) vertex closely punctured; (14) hypostomal area of gena with setae longer than those on disc; (15) mandible with outer surface rounder than shown in Figure 36A (Fig. 36B); (16) scutum closely punctured, longitudinal median line complete; anterior fascia represented by median patch, weaker lateral line; (17) mesepisternum with anterior and posterior fasciae sparse; (18) scutellum with posterior margin produced slightly (Fig. 37B); (19) axilla without carina (Fig. 37B); (21) front coxal spine reduced; (22) tergum with foveal area unmodified; (23) fascia of sternum 1 represented by median patch, fascia of sternum 5 complete.
MALE. Agrees with description and figures of Coelioxys edita except as follows: (24) Length 9.5-12.5 mm; (25) integument as in female (2 above); (27) ocular hairs of medium length (about 0.1 mm); (28) clypeus obscured by long setae (about 0.45 mm); (30) paraocular area obscured by setae about 0.45 mm long; (32) clypeoantennal distance less than in-terantennal distance, greater than anten-nocular distance; (33) ocellar area as in female (10 above); (34) ocellocular distance greater than interocellar distance, less than ocelloccipital distance; (36) gena with ventral angle less than 90°; (37) hypostomal area of gena not excavated, but as in female (14 above); (38-43) mandible, scutum, mesepisternum, scutellum, axilla, metanotal setae as in female (15-20 above); (44) front coxal spine reduced, with dense, brown anteroventrally directed spot of setae; (45) terga 3-5 with apical fasciae incomplete medially, median fasciae becoming more distinct posteriorly; tergum 2 with foveal area unmodified; tergum 6 with dorsal spines reduced (Fig. 38H); tergum 7 with apical spine about half as long as shown in Figure 13A; (46) sterna 1-4 with punctures and fasciae as in female (23 above) except each puncture with seta becoming more conspicuous posteriorly; gradular grooves with fasciae; (47) sternum 4 subapically carinate, fascia complete; emargination of sternum 5 broad; shoulders of sternum 6 bifid, setae inflated medioposteriorly (Fig. 39E); sternum 8 with lateral angles extended, base narrow (Fig. 39F); genital armature with slender branched setae on gonocoxites (Fig. 39G).
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