Two Invaders Instead of One: The True Identity of Species under the Name Ceracis cucullatus (Coleoptera: Ciidae)
Figure 6
Male abdominal terminalia of Ceracis cucullatus (Mellié), Cer. lamellatus (Pic) and Cer. tabellifer (Mellié).
Whole mount preparations of aedeagus (A, E, I), tegmen and penis (B, F, J), basal piece (C, G, K) and eighth sternite (D, H, L) of (A–D) Ceracis cucullatus (Mellié), (E–H) Cer. lamellatus (Pic) and (I–L) Cer. tabellifer (Mellié). Some features of the penis are better visualized in whole mount preparations of aedeagus and therefore are highlighted in figures A, E and I. Arrows indicate morphological characteristics important to distinguish the species, as follows: (A) Angulation point from which the margins of penis converge abruptly toward the apex. (B) Tegmen with basal portion narrowed, distinct (large arrow); basolateral margins narrow (medium-sized arrows); penis with basal portion opened, leaving the lower limits of the lateral margins disconnected (small arrows). (D) Eighth sternite with anterior margin distinctly produced at middle, its apex conspicuously beyond the anterolateral angles. (E) Angulation point from which the margins of penis converge abruptly toward the apex. (F) Tegmen with basal portion narrowed, distinct (large arrow); penis with basal portion opened (small arrows). (I) Above, penis with apical portion forming well sclerotized arcs (horizontal small arrows); below, basal portion of penis closed, membranous (vertical small arrows). (J) Tegmen with basolateral margins thick (large arrows); penis with basal portion closed (vertical small arrow) and apical portion forming well sclerotized arcs (horizontal small arrows). (K) Basal piece small, semicircular or subtriangular, with rounded angles. All figures are in the same scale. Scale bar = 0.1 mm.