Chalicodoma

Figures 1–6.Photomicrographs of male of Chalicodoma (Alocanthedon) odontophorum Engel, sp. n. 1 Dorsal habitus 2 Facial aspect 3 Dorsal aspect of mesoscutum and mesoscutellum 4 Detail of forewing medial cell 5 Protarsus, pro-pretarsus, and protibia 6 Dorsal aspect of metasomal terga V and VI.

Figures 1–6.Photomicrographs of female holotype (KSMA) of Chalicodoma (Pseudomegachile) riyadhense sp. n. 1 Lateral habitus 2 Dorsal habitus 3 Facial view 4 Detail of clypeus 5 Detail of mandibles 6 Detail of mesoscutal integument.

Figures 7–9.Photomicrographs of female of Chalicodoma (Alocanthedon) odontophorum Engel, sp. n. 7 Dorsal habitus 8 Facial aspect (with expanded detail of clypeus, arrow indicating medioapical tubercle) 9 Dorsal aspect of mesoscutum and mesoscutellum.

Figures 7–17.Photomicrographs of male paratype (SEMC) of Chalicodoma (Pseudomegachile) riyadhense sp. n. 7 Lateral habitus 8 Dorsal habitus 9 Facial view 10 Ventral view of head 11 Apex of sixth metasomal tergum 12 Seventh tergum 13 Fifth metasomal sternum 14 Sixth sternum 15 Eighth sternum 16 Genital capsule (dorsal left, ventral right) 17 Lateral aspect of genital capsule.

Figures 26–34.Photomicrographs of representative male genitalia for species of Alocanthedon Engel and Gonzalez, subgen. n. in ventral, lateral and dorsal aspects 26–28 Chalicodoma (Alocanthedon) odontophorum Engel, sp. n. 29–31 C. (A.) memecylonae Engel, sp. n. 32–34 C. (A.) atratiforme (Meade-Waldo).

Figures 10–14.Photomicrographs of male of Chalicodoma (Alocanthedon) apoicola Engel, sp. n. 10 Dorsal habitus 11 Detail of forewing medial cell 12 Facial aspect 13 Dorsal aspect of mesoscutum and mesoscutellum 14 Protarsus, pro-pretarsus, and apex of protibia.

Figures 15–16.Photomicrographs of male head of Chalicodoma (Alocanthedon) apoicola Engel, sp. n. depicting juxtamandibular flange/lamella and postgenal depression 15 Right lateral aspect of apical portion of head 16 Ventral aspect of right side of head.

Figures 17–22.Photomicrographs of male of Chalicodoma (Alocanthedon) memecylonae Engel, sp. n. 17 Dorsal habitus 18 Facial aspect 19 Lateral aspect of head, arrow indicates postgenal flange, note also broad, medial inferior protuberance of male mandible 20 Detail of forewing medial cell 21 Protarsus, pro-pretarsus, and apex of protibia 22 Dorsal aspect of metasomal terga V and VI.

Figures 23–25.Photomicrographs of female of Chalicodoma (Alocanthedon) memecylonae Engel, sp. n. 23 Dorsal habitus 24 Facial aspect 25 Dorsal aspect of mesoscutum and mesoscutellum.

Figures 26–34.Photomicrographs of representative male genitalia for species of Alocanthedon Engel and Gonzalez, subgen. n. in ventral, lateral and dorsal aspects 26–28 Chalicodoma (Alocanthedon) odontophorum Engel, sp. n. 29–31 C. (A.) memecylonae Engel, sp. n. 32–34 C. (A.) atratiforme (Meade-Waldo).