Andrena (Chlorandrena) humilis IMHOFF, 1832

Oligolectic: A species with a strong preference for yellow-flowered Asteraceae, upon which it may be oligolectic. Chambers (1968) reports it collecting pollen from Hieracium pilosella. It also flies to Ranunculus (Ranunculaceae), Crepis and Taraxacum (Asteraceae) but whether for pollen or nectar is not known.

In Germany it is oligolectic on Asteraceae (Westrich, 1989).

Dylewska (1987) lists the following forage plants: Taraxacum officinale, Hieracium pilosella, Leontodon autumnalis, Hypochoeris radicata, Crepis biennis, Senecio, Tragopogon pratensis (Asteraceae); Ranunculus bulbosus (Ranunculaceae); Melilotus sp. (Fabaceae); Veronica (Scrophulariaceae); Crataegus oxyacantha, Prunus sp. (Rosaceae).

It is an oligolectic species in Finland, where the following flowers are listed: Pilosella officinarum, Leontodon hispidus (Asteraceae). It has also been found at Potentilla argentea (Rosaceae) and Vicia sepium (Fabaceae)(presumably for nectar)(Söderman & Leinonen, 2003).Pekkarinen (1998) lists plants in the following genera of Asteraceae as pollen sources in Finland: Hieracium and Leontodon.

Peeters & Reemer (2003) stste that although the species will visit a range of various Asteraceae, it shows a distinct preference for Taraxacum sp. (Asteraceae) in the Netherlands.

Reported to be a pollinator of Almond (Prunus dulcis - Rosaceae) and Cherry (Prunus spp.)in the orchards of highland Jordan.

Tomozei (2014), citing others, states that the species is oligolectic and that females collect pollen from flowers of the Asteraceae family (Taraxacum, Leontodon, Tragopogon, Crepis, Hieracium). However, according to Dylewska and Wlsniowski (2003), the females occasionally visit flowers of Melilotus (Fabaceae); Ranunculus (Ranunculaceae); Crataegus, Prunus (Rosaceae) and Veronica (Plantaginaceae) (Dylewska 1987, Osytshnjuk et al. 2005).

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