Appendix E (Table E1). Bee species collected on flowers of Clarkia xantiana. Species are ranked by overall abundance. The subgenus for each species is shown in parentheses, when possible. Taxonomic designations follow Michener (2000)†. Pollen specialists are denoted by “S” and were designated according to MacSwain et al.’s (1973) monograph on bee visitors to Clarkia species. The number of sites occupied by each species is shown separately for subspecies xantiana (10 sites) and parviflora (5 sites).
No. sites occupied |
||||
Species |
Abundance |
xantiana |
parviflora |
|
Hesperapis (Panurgomia) regularis (Cresson) |
S |
258 |
10 |
0 |
Lasioglossum (Evylaeus) pullilabre (Vachal) |
S‡ |
250 |
9 |
0 |
Ceratina (Zadontomerus) sequoiae Michener |
S |
168 |
9 |
0 |
Anthophora (Mystacanthophora) urbana Cresson |
144 |
10 |
2 |
|
Megachile (Megachiloides) gravita Mitchell |
S |
125 |
8 |
0 |
Lasioglossum (Dialictus) sp. |
96 |
7 |
0 |
|
Bombus (Pyrobombus) vandykei (Frison) |
55 |
6 |
0 |
|
Hoplitis albifrons maura Kirby |
48 |
8 |
0 |
|
Agapostemon (Agapostemon) texanus Cresson |
46 |
3 |
1 |
|
Bombus (Pyrobombus) vosnesenskii Radoszkowski |
28 |
10 |
0 |
|
Megachile sp. 1 |
18 |
2 |
0 |
|
Melissodes sp. 2 |
16 |
5 |
0 |
|
Andrena (Diandrena) lewisorum Thorp |
S |
15 |
2 |
0 |
Xylocopa (Notoxylocopa) tabaniformis Smith |
10 |
5 |
2 |
|
Eucera (Synhalonia) venusta ssp. carinata (Timberlake) |
S |
9 |
1 |
0 |
Coelioxys sp. |
9 |
4 |
0 |
|
Diadasia angusticeps Timberlake |
S |
9 |
2 |
0 |
Halictus (Halictus) farinosus Smith |
8 |
4 |
0 |
|
Protosmia (Chelostomopsis) rubifloris (Cockerell) |
8 |
2 |
0 |
|
Osmia (Melanosmia) sp.1 |
8 |
1 |
2 |
|
Bombus (Crotchiibombus) crotchii Cresson |
7 |
3 |
0 |
|
Ceratina sp. 2 |
6 |
0 |
2 |
|
Apis mellifera L. |
4 |
3 |
0 |
|
Osmia (Melanosmia) sp. 2 |
4 |
3 |
0 |
|
Ashmeadiella sp. 1 |
4 |
4 |
0 |
|
Melissodes communis Cresson |
4 |
3 |
0 |
|
Melissodes sp. 1 |
3 |
1 |
0 |
|
| Halictus (Seladonia) tripartitus Cockerell | 3 |
1 |
1 |
|
Andrena (Melandrena) cerasifolii Cockerell |
3 |
3 |
0 |
|
Megachile sp. 2 |
3 |
2 |
0 |
|
Melissodes lupina Cresson |
3 |
3 |
0 |
|
Habropoda tristissima Cockerell |
3 |
2 |
0 |
|
Synhalonia stretchii Cresson |
3 |
1 |
0 |
|
Augochlorella pomoniella (Cockerell) |
2 |
1 |
1 |
|
Hoplitis sp. 1 |
2 |
0 |
2 |
|
Hoplitis (Monumetha) fulgida (Cockerell) |
2 |
1 |
0 |
|
Megachile sp. 3 |
2 |
1 |
0 |
|
Ashmeadiella sp. 2 |
2 |
0 |
2 |
|
Ceratina sp. 3 |
2 |
1 |
1 |
|
Ceratina sp. 1 |
2 |
2 |
0 |
|
Anthophora (Paramegilla) centriformis Cresson |
2 |
0 |
2 |
|
Diadasia bituberculata (Cresson) |
2 |
2 |
0 |
|
Heriades sp. |
1 |
1 |
0 |
|
Hylaeus sp. |
1 |
1 |
0 |
|
Hoplitis sp. 2 |
1 |
1 |
0 |
|
Andrena sp. 1 |
1 |
1 |
0 |
|
Andrena sp. 2 |
1 |
1 |
0 |
|
Chelostoma sp. |
1 |
1 |
0 |
|
Trachusa (Heteranthidium) timberlakei Schwartz |
1 |
1 |
0 |
|
Anthophora (Melea) bomboides Kirby |
1 |
1 |
0 |
|
Melissodes nigracauda LaBerge |
1 |
1 |
0 |
|
Bombus (Pyrobombus) mixtus Cresson |
1 |
1 |
0 |
|
Anthophora sp. |
1 |
0 |
1 |
|
Anthidium sp. |
1 |
0 |
1 |
|
Dianthidium sp. |
1 |
0 |
1 |
|
Centris (Xerocentris) sp. |
1 |
0 |
1 |
|
† Michener, C. D. The Bees of the World. The Johns Hopkins University Press, Baltimore, Maryland, USA.
‡ Lasioglossum pullilabre is considered a putative specialist but this has not been confirmed.
§ Megachile gravita and Megachile pascoensis were combined because females of the two species could not be distinguished. Males are readily distinguished and their distribution among sites indicated that the two species frequently co-occur.