Elytron - groove adjacent to scutellum

Locating the elytra and scutellum

The elytra are posterior to the pronotum and are the largest visible dorsal sclerites (Fig. 1A). The scutellum is a triangular sclerite posterior to the pronotum, between the bases of the two elytra (Fig. 1B).

Move cursor over small images to view large images.



The scutellar groove is that part of the sutural groove, adjacent to the elytral suture, extended basally along the junction of the elytron and scutellum.

The states are either:

  1. Groove complete, along entire junction with scutellum (Fig, 2A).

  2. Groove absent or incomplete, at most only 2/3 length of scutellum (Fig. 2B).