76 Some Key Characteristics
Some Key Characteristics
This chapter is intended to be a guide to some of the main features that you will need to see on Hymenoptera to determine families using the key in your text.
1 Abdomen broadly joined to thorax or petiolate
Broadly joined:

Petiolate:

OR:

2 Dorsal hump on petiole
With:

Without:

3 Pronotum triangular, squarish, or with a rounded lobe
Triangular:

Squarish:

Rounded lobe:

4 Number of m-cu crossveins
Two:

One:

5 Jugal lobe on hindwing
Long:

Short:

6 Submarginal cells on front wing
Two:

Three:

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