Differentiating the Mature Larvae of Packardia geminata (Jeweled Tailed Slug) and P. elegans (Elegant Tailed Slug)

Although the adults of P. geminata and P. elegans are readily and easily differentiated, not resembling each other in the least respect, the larvae are often confused. The two may superficially resemble each but may be easily differentiated by examination of a few specific characteristics, which are listed below:

(Please note that these characters only apply to mature larvae).

  1. P. geminata is generally of a turquoise color overall, while P. elegans is generally of a yellow green coloration.
  2. P. geminata bears one straight, whitish subdorsal stripe on each side of the body, whereas those of P. elegans are rather yellowish and wavy.
  3. The tail of P. geminata is of body color dorsally, while that of P. elegans is usually red dorsally.

See the links below to compare the two based on the listed characteristics:
https://www.inaturalist.org/observations/92506730 (Packardia geminata)
https://www.inaturalist.org/observations/94535148 (Packardia elegans)

Publicado el 20 de noviembre de 2021 por tcooley tcooley

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