Sweat Bees

Cheboygan Co., MI

Washtenaw Co., Michigan

Hevring Hede, Østjylland, Danmark

Lasioglossum asteris, male

Figures 1–5.Photomicrographs of male holotype of Microsphecodes xaymacensis Engel, sp. n. 1 Lateral habitus 2 Facial aspect 3 Dorsal view of posterior mesosoma, highlighting propodeum, metanotum, mesoscutellum and posterior third of mesoscutum 4 Pygidial plate 5 Detail of forewing venation.

Figure 1.Male of Chlerogelloides nexosasp. n.collecting resources at flowers ofCordia nodosa Lam. (Boraginaceae) at the Estação Ecológica Ferreira Penna (Caxiuanã Reserve, Melgaço, Pará, Brazil). Photograph by Rech et al. (in press).

Figures 1–6.Seladonia (Pachyceble) henanensis sp. n. 1–2 lateral habitus 3–4 head in frontal view 5 mesoscutum 6 propodeal dorsum. 1, 3, 5 male, holotype. 2, 4, 6 female paratype.

Figures 1–3.Female of Lasioglossum (Dialictus) sombrerense Engel, sp. n. 1 Lateral habitus 2 Dorsal habitus 3 Facial aspect.

Washtenaw Co., Michigan

Hevring Hede, Østjylland, Danmark

Lasioglossum asteris, female

Figures 6–8.Male genitalia of Microsphecodes xaymacensis Engel, sp. n. 6 Ventral aspect 7 Dorsal aspect 8 Lateral aspect.

Figures 2–3.Photomicrographs of male paratype of Chlerogelloides nexosa sp. n. 2 Lateral habitus 3 Facial view.

Figures 18–24.18, 21 Male of Seladonia (Pachyceble) henanensis sp. n., holotype 19, 22 Male of Seladonia (Pachyceble) tumulorum tumulorum (Linnaeus) 20, 23 Male of Seladonia (Pachyceble) confusa confusa (Smith) 24 Collecting site of Seladonia (Pachyceble) henanensis sp. n., photograph by Dr. Satoshi Kamitani 18–20 gonostylus of male genitalia in dorsal view 21–23 lower gonostylus of male genitalia in lateral view. Scale bars: 0.2 mm.

Figures 4–6.Male of Lasioglossum (Dialictus) sombrerense Engel, sp. n. 4 Lateral habitus 5 Dorsal habitus. 6 Facial aspect.

Hevring Hede, Østjylland, Danmark

Distribution of Lasioglossum asteris (dark grey) in North America (light grey shows range of L. atwoodi) (Fig. 75, Gibbs 2010)

Figures 9–12.Photomicrographs of female paratype of Microsphecodes xaymacensis Engel, sp. n. 9 Lateral habitus 10 Facial aspect 11 Dorsal view of head and mesosoma highlighting head and mesoscutum 12 Dorsal view of head and mesosoma highlighting mesoscutellum, metanotum, and propodeum.

Figures 4–6.Male midlegs of species of Chlerogelloides. 4 Chlerogelloides femoralis Engel et al. 5 Chlerogelloides nexosa sp. n. 6 Chlerogelloides simplex Engel and Brooks.

Figures 7–9.Male genitalia of Lasioglossum (Dialictus) sombrerense Engel, sp. n. 7 Dorsal aspect 8 Ventral aspect 9 Lateral aspect.

Hevring Hede, Østjylland, Danmark

Megalopta genalis in its tunnel nest, with one wall of the tunnel removed

Figures 7–10.Male terminalia of Chlerogelloides nexosa sp. n. 7 Hidden and fused sterna VII+VIII 8 Genital capsule, lateral view 9 Genital capsule, dorsal view 10 Genital capsule, ventral view.

Hevring Hede, Østjylland, Danmark