FIGURES 1–3 in Notation of primary setae and pores on larvae of Dytiscinae (Coleoptera: Dytiscidae), with phylogenetic considerations

FIGURES 1–3. Distribution of ancestral setae and pores on dorsal surface of head capsule of first instar of selected species of Dytiscinae; (1) Acilius semisulcatus; (2) Thermonectus succinctus; (3) Graphoderus occidentalis; EB, egg bursters, FR, frontoclypeus; LC, lamellae clypeales; PA, parietale; numbers and lowercase letters refer to primary setae and pores, respectively (see Table 2 for list of setae and pores).