Chaetosomatidae

Opitz, Weston, 2014, Morphologic studies of the alimentary canal and internal reproductive organs of the Chaetosomatidae and the Cleridae (Coleoptera: Cleroidea) with comparative morphology and taxonomic analyses, Insecta Mundi 2014 (342), pp. 1-40 : 2

Chaetosomatidae

Somatochaetus quadraticollis Menier and Ekis. Alimentary canal: Stomodaeum very long, as long as length of ventriculus ( Fig. 1 ).

Metaxina ornat a Broun. Alimentary canal: As in previous species ( Fig. 2 ). Notes: The extensive length of the stomodaeum is considered herein a primitive characteristic within Cleroidea, one that is also found among species of Thaneroclerinae Chapin and Isoclerinae Kolibáč, the most primitive subfamilies in the Cleridae .

Figures

Figures 1–12. Alimentary canals and reproductive organs. 1–3. Alimentary canals. 1) Somatochaetus quadraticollis. 2) Metaxina ornata. 3) Ababa sp. 4–12. Reproductive organs. 4) Callimerus sp., female. 5–6. Eurymetopum maculatum, 5) male, 6) female. 7–12. Eurymetopum spp., 7) sp. a., male. 8) sp. b., male. 9) sp. c., female. 10) sp. d., female. 11) sp. e., female. 12). Isohydnocera aegra, male.