Figure 1

Variation in tyloid morphology in Diplazontinae. Shape of tyloids found in four species of diplazontine wasps. (A) and (C) Syrphoctonus tarsatorius, antennal segments 9 to 15 (A) and 10 (C), showing narrow, linear tyloids with abundant pores. Scale bars = 200 μm and 30 μm. (B) and (D) Enizemum ornatum, antennal segments 8 to 14 (B) and 10 (D), showing broad, linear tyloids with no pores. Scale bars = 200 μm and 50 μm. (E) and (G) Sussaba erigator, antennal segments 6 to 12 (E) and 8 (G), showing drop-shaped tyloids with pores. Scale bars = 200 μm and 50 μm. (F) and (G) Sussaba pulchella, antennal segments 6 to 14 (F) and 10 (G), showing oval, two-coloured tyloids with pores. Scale bars = 200 μm and 50 μm.