Key to known larvae of the subgenus Spartoxena

1. Abdominal segments 1–6 with four dorsal and three dorsolateral tubercles on each side (Steinhausen 1994: Fig. 216). Southern Alps ...................................................................................... G. gobanzi (Reitter)

- Abdominal segments 1–6 with four dorsal and two dorsolateral tubercles on each side (Fig. 10 and Baselga & Novoa 2004: Figs. 10 –11). .................................................................................................. 2

2. Tarsal claws with a weak tooth in ventral side (Fig. 7). Labrum with a wide V-shaped notch (Fig. 6). Microtrichia of epipharynx mostly isolated or sometimes paired (Fig. 6). Iberian peninsula and northern Morocco ..................................................................................................................... G. aegrota (Fabricius)

- Tarsal claws with a marked tooth in ventral side (Figs. 5, 9)......................................................................3

3. Tarsal claws with a broad tooth (Fig. 9). Labrum with a deep U-shaped notch (Fig. 8). Microtrichia of epipharynx fused together to form ridges of 3–5 denticles (Fig. 8). Northwest quarter of the Iberian peninsula.................................................................................................................................... G. leprieuri (Pic)

- Tarsal claws with an acute tooth (Fig. 5). Labrum with a shallow U-shaped notch (Fig. 3). Microtrichia of epipharynx mostly isolated or sometimes paired (Fig. 3). South-east Iberian peninsula. ............................ ..................................................................................................................... G. pseudogobanzi Kippenberg