HYMENOPTERA. 83 
SeRRIFERA, having the abdomen sessile, the larve feeding 
upon vegetable matter, with a well developed mandibulated 
mouth. Fam. 1. Tenthredinide. 2. Uroceride. 
Sub-section 2, EnromorpHaca (Pupivora JZatr.), having the 
abdomen attached to the thorax by a portion only of its 
transverse diameter: larvee with slightly developed mandi- 
bulated trophi, for the most part feeding parasitically upon 
other living insects. 
Division 1. SprcuttFeERA, abdomen with an elongate plurivalve 
oviduct : larva for the most part feeding parasitically upon 
other living insects. Fam. 3. Cynipide. 4. Evaniide. 5. 
Ichneumonide. 6. Chalcidide. ‘7. Proctotrupide. 
Division 2. Tusutirera, Zatr. Extremity of abdomen tu- 
bular, retractile, and furnished with a minute sting. Larve 
feeding upon the larvee of other Hymenoptera, or upon dead 
insects deposited by the parents of such larva for the sup- 
port of the latter. Fam. 8. Chrysidide. 
Sect. I. Acureara, Laéreille (Hymenoptera Normalia, or the 
typical portion of the order), the abdomen of the females (and 
neuters), armed with a sting connected with a poison reservoir. 
Antenne of the males, 13-; females, 12-jointed. 
Sub-section 1. Prapones, Laér. (Heterogyna, Fossores, and Di- 
ploptera, Latr.) having the basal joint of the posterior tarsi 
cylindrical, not dilated, nor formed for collecting pollen: larvee 
feeding upon other insects stored up, or upon animal or vegetable 
fluids provided by neuters. Fam. 9. Crabronide, 10. Larride, 
11. Bembecide, 12. Sphegide, 13. Scoliide, 14. Mutillide 
15. Formicidae, 16. Vespide. 
Sub-section 2, Meiiirera, Latr., having the basal joint of the 
posterior tarsi dilated and pollinigerous. Larvee feeding upon 
honey or pollen paste, deposited by the parent, or collected by 
neuters. Fam. 17. Andrenide, 18. Apide. 
A succession of affinities appears to exist amongst these families. 
The bees, which are the most perfectly organised and typical insects 
of the order, lead to the Vespide by means of such short-tongued 
bees as Hyleeus, &c.; whilst the transition from the wasps by the 
solitary species (Odynerus, &c.) to the Crabronidee, Sphegidze, Bem- 
becide, Scoliidz, and Mutillide, is almost unbroken. The ants are 
of difficult location. Their introduction immediately preceding the 
G2 
