Pteronymia andreas (Weeks, 1901)

Carvalho, Ana Paula S., Mota, Luísa L. & Kawahara, Akito Y., 2019, Intersexual ‘ Arms Race’ and the Evolution of the Sphragis in Pteronymia Butterflies, Insect Systematics and Diversity 3 (2019), No. 3, pp. 1-13 : 5

Pteronymia andreas (Weeks, 1901)

Figure 2

Females examined: 22. 1 with a complete sphragis; 12 bearing incomplete or amorphous sphragides.

Description: Coloration—golden-brown to yellowish off-white. Shape—plate-like. Structure—mostly hollow. Scales—found in some specimens, but not ordered, probably accidentally attached. Complexity category—2.

Comments: The complete sphragis that we observed was likely deformed due to the way it was attached to the sterigma. Nearly all (12/13, 92%) of the sphragides observed for this species were incomplete. Incomplete sphragides were in the form of a plate, and always completely internalized inside the bowl-like sterigma. The amount of sphragidal material was variable, but often it only covered the ostium bursae and immediate surroundings.

Figures

Fig. 2–5. The sterigma and sphragis of P. andreas (2), P. calgiria (3), P. obscuratus (4), and P.latilla (5). A: ventral, sphragis absent; B: ventral,sphragis present; C: lateral, sphragis present; D: P. obscuratus with a spermatophore externally connected to the sphragis.