1: with posterior ends directed towards lateral ocelli
2: with posterior ends directed towards median ocellus
3: with posterior ends meeting anterior to ocelli forming a complete circle
4: absent

1: quadrate, or slightly narrowing anteriorly
2: triangular
3: absent

1: fore and mid claws cleft
2: fore and mid claws with a basal lobe
3: fore and mid claws simple

1: extensively striate in anterior half or more
2: not extensively striate, usually smooth or weakly coriarious

1: about as long as basitarsus, and ending in a long thin style
2: less that 3/4 length of fore basitarsus, and ending abruptly

1: mouthparts long, galea significantly longer than wide; gena often elongate
2: mouthparts short (normal), galea not longer than wide; gena not especially elongate

1: bordered with carinae
2: not bordered with carinae

1: mostly striate
2: entirely smooth
3: mostly granulate or coriarious

1: absent or indicated only by slight swelling
2: present and distinct

1: short, barely exerted or less than half length of metasoma
2: longer than half length of metasoma

1: present but not necessarily complete
2: absent

1: mostly or entirely absent
2: present and complete

1: hind trochantellus with one or two distinct carinae
2: hind trochantellus lacking carinae

1: situated entirely dorsal to coxal cavities (CC); wide, high, straight, transverse carinae (TC) between metasomal (MC) and coxal cavities
2: situated partly between coxal cavities (CC); wide, high, straight, transverse carinae (TC) between metasomal (MC) and coxal cavities absent, usually curved and relatively shallow if present

1: lamellate (high and thin)
2: in the form of a blunt ridge, not lamellate
3: absent

1: completely absent
2: present, though sometimes interupted at midlength

1: present and high, resulting in a deep groove between antennae
2: absent or low, groove between antennae may be present but not so pronounced