with long hair - Panurgus (9).

Abdomen obovate; antennæ filiform;

posterior legs covered

densely with short hair - Eucera (10).

Three submarginal cells to the wings.

Short dense hair on the whole posterior

tibiæ externally.

Abdomen obovate; first joint of

labial palpi twice as long as

second - Anthophora (11).