Dimorphic Sessile Apterae of the Aphid Neothoracaphis glaucae (Hemiptera) on the Evergreen Oak Quercus glauca

Table 5

Approximate length of the stylets of Neothoracaphis glaucae and N. yanonis.

	Stylet length in mm
N. glaucae: morph
First-instar nymph to be aptera	0.15 (mean 0.15) (n = 10)
First-instar nymph to be alate	0.14 (n = 1)
Fourth-instar wingpadded nymph	0.14–0.18 (0.16) (n = 10)
First-instar nymph produced by the alate	0.25–0.29 (0.27) (n = 40)
N. yanonis: morph
First-instar nymph to be aptera	0.10–0.12 (mean 0.11) (n = 10)
First-instar nymph to be alate	0.11–0.13 (0.12) (n = 10)
Fourth-instar wingpadded nymph	0.11–0.12 (0.11) (n = 5)
First-instar female	0.21–0.23 (0.22) (n = 10)
First-instar male	0.06–0.10 (0.08) (n = 9)