274 ELEMENTARY ENTOMOLOGY 



bee-bread on which the larvae are fed is made from the pollen of 

 flowers and is carried to the nest on the hind-legs, which have a 

 hair-encircled area, called the pollen-basket, for transporting it. 

 The honey is stored for food during the winter, and is made from 

 the nectar of flowers, which is taken into the honey-stomach, where 

 it is changed to honey, and is then regurgitated into the cells of 

 the comb. 



SUMMARY OF THE HYMENOPTERA 



Suborder I. Boring Hymenoptera (Terebrantia]. With ovipositor and two- 

 segmented trochanters. 



Section I. Plant-eating Hymenoptera. Abdomen not constricted. 

 Family. Saw-flies (Tenthredinidae). 



Horn-tails (Si rid da e). 



Section 2. Gall-inhabiting Hymenoptera (Cynipidae). 

 Section 3. Parasitic Hymenoptera. Abdomen petiolate. 

 Family. Ichneumon-flies (Ichneumonidae). 

 Braconid-flies (Braconidae], 

 Chalcis-flies ( Chalcididae). 

 Proctotrypid-flies (Proctotrypidae). 



Suborder II. Stinging Hymenoptera (Aculeata). Females bearing a sting; 



simple trochanters. 



Section I . Ants (superfamily Fonnicina}. 

 Family. Common ants (Camponotidae). 



Stinging ants (Myrmicidae}. 

 Section 2. Wasps. First segment of metatarsi cylindrical ; hairs simple. 



A, Digger-wasps (superfamily Sphecina). 



Family. Velvet-ants (Mutillidae). 



Spider-wasps (Psammocharidae). 

 Thread-waisted wasps (Sphecidae). 

 Bembecids (Bembecidae), 

 and others. 



B. True wasps (superfamily Vespina). Wings folded fanlike on 



back when at rest. 

 Family. Solitary wasps (Euinenidae). 



Social wasps (Vespidae). 



Section 3. Bees (superfamily Apina). First segment of metatarsi, 

 broad, flattened, hairy ; body hairs, plumose. 



Family. Short-tongued bees (Andrenidae). 

 Long-tongued bees (Apidae). 



Solitary bees, guest-bees, social bees. 



