Figure 3
From: Optimized imaging methods for species-level identification of food-contaminating beetles
Acquired patterns on either side of elytra dorsal (D) & ventral (V) sides for maximum visualization of the patterns and to compare the two different illumination systems, RRf_P and Trans, for (a) T. castenium, (b) T. confusum both belonging to the genus Tribolium; and are well known for their remarkably similar appearance; and (c) in visualizing surface features in O. surinamensis (OS), L. serricorne (LS), and T. confusum (TCo). Although, both systems seemed equally good for visualizing elytral patterns, the Trans system was found to be the least affected by minor surface features such as setae, thin surface coatings or occasional adherents, making it more advantageous for the imaging application.
