[Illustration: PLATE A.
1. _Formica sanguinea, male._ 2. _Formica sanguinea, female._ 3. _Formica
sanguinea, worker._ 4. _Mutilla europaea, male._ 5. _Mutilla Europaea,
female._ 6. _Cerceris arenaria, female._ 7. _Ammophila sabulosa, female._
8. _Crabro cribrarius, male._ 9. _Odynerus spinipes, male._
[_front._
WILD BEES, WASPS
AND ANTS