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 (Siricidae). 



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 Formicina). 

 Family. Common ants (Camponotidae). 



Stinging ants (Myrmicidae). 

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



A. Digger-wasps (superfamily Sphecind). 



Family. Velvet-ants (Mutillidae). 



Spider-wasps (Psammocharidae). 

 Thread-waisted wasps (Sphecidae\ 

 Bembecids (Bembecidae), 

 and others. 



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



back when at rest. 

 Family. Solitary wasps (Eumenidae}. 



Social wasps (Vespidae). 



Section 3. Bees (superfamily Apina). First segment of metatarsL 

 broad, flattened, hairy ; body hairs, plumose. 



Family. Short-tongued bees (Andrenidae). 

 Long-tongued bees (Apidae). 



Solitary bees, guest-bees, social bees. 



