Figure 6 from: Vinasco AFM, Carrejo NSG (2016) Morphology and development rate of the immature stages of Glyphidops (Oncopsia) flavifrons (Bigot, 1886) (Diptera, Neriidae) under natural conditions. ZooKeys 603: 141-159. https://doi.org/10.3897/zookeys.603.7355

Figure 6 - Spiracles of each larval instar. Anterior spiracle on L2 (a, e) and L3 (b, f). Posterior spiral on L1-L2 (c, g) and L3 (d, h). Scale bar of drawings 0.15 mm. ecdys sc, ecdysial scar; spr dg, spiracular digit; spr op, spiracular opening; spr prc, spiracular process; spr trch, spiracular trachea; rm, rime.