1 = compound eye
2 = ocellar tubercle
3 = ocellus (pl. ocelli)
4 = antennal socket
5 = occiput
6 = vertex
7 = frons
8 = face
9 = postcranium (postocular area)
10 = facial gibbosity
11 = parafacial area
12 = lower fascial margin
13 = palpus (pl. palpi), maxillary palpus
14 = proboscis
15 = fused prementum and labellae (sg. labella)
16 = gena (pl. genae), cheek
17 = lower part of the occiput, cheek
18 = postgena
19 = clypeus?, subcranial cavity
20 = posterior tentorial pit
21 = paravertex ?
22 = median occipital sclerite
23 = occipital foramen
24 = postocciput (= rim of occipital foramen)
25 = hypostomal bridge

1 = palpus (pl. palpi), maxillary palpus
2 = labrum
3 = hypopharynx
4 = stipes (pl. stipites) of maxilla (pl. maxillae), galea
5 = labium
6 = fused postmentum
7 = fused prementum and labellae (sg. labella)
8 = paraglossa, (pl. paraglossae), fused labial palpus
9 = cardo of maxilla