Catulona pensa Rolston, 1992

Matesco, Viviana Cauduro, Bianchi, Filipe Michels, Fürstenau, Brenda Bianca Rodrigues Jesse, Silva, Priscila Poock Da, Campos, Luiz Alexandre & Grazia, Jocelia, 2014, External egg structure of the Pentatomidae (Hemiptera: Heteroptera) and the search for characters with phylogenetic importance, Zootaxa 3768 (3), pp. 351-385 : 365

Catulona pensa Rolston, 1992

( Figs. 23–25 ; Tab. 2 )

Eggs barrel-shaped to subspherical; pearly white prior to embryonic development; operculum broadly round and convex; chorion shiny and smooth. The aero-micropylar processes arranged in an ellipse not coincident to the operculum margin and translucent, short, and clubbed.

The chorion surface is smooth under SEM ( Fig. 23 ). At the posterior pole, there are the remnants of adhesive substances. The operculum may be somewhat granulated, and the eclosion line is evident as a narrow marked strip inward from the AMPs ( Figs. 24 , 25 ). The AMPs are strongly clubbed and without evident openings ( Figs. 24 , 25 ). Under higher magnification, the surface of those processes is irregular but not spongy ( Fig. 25 ).

Figures

FIGURES 13 – 24. Eggs of the Pentatomidae viewed with scanning electron microscopy (SEM). Figs. 13 – 17. Podisus distinctus (Stål). Fig. 13. Lateral view. Fig. 14. Anterior view. Fig. 15. Magnification of the lateral wall. Fig. 16. Magnification of anterior pole, showing the eclosion line and the aero-micropylar processes (AMP). Fig. 17. Detail of AMP. Figs. 18 – 22. Podisus nigrispinus (Dallas). Fig. 18. Lateral view. Fig. 19. Anterior view. Fig. 20. Magnification of the lateral wall. Fig. 21. Magnification of anterior pole, showing the eclosion line and the AMP. Fig. 22. Detail of AMP. Figs. 23 and 24. Catulona pensa Rolston. Fig. 23. Lateral view. Fig. 24. Anterior view. Abbreviations: amp – aero-micropylar process, ec – eclosion line.

FIGURES 25 – 36. Eggs of the Pentatomidae viewed with SEM. Fig. 25. Catulona pensa Rolston, detail of anterior pole, showing the AMP and the granulated area. Figs. 26 – 30. Dichelops (Diceraeus) furcatus (Fabricius). Fig. 26. Lateral view. Fig. 27. Anterior view. Fig. 28. Magnification of the lateral wall. Fig. 29. Magnification of anterior pole, showing the eclosion line and the AMP. Fig. 30. Detail of AMP. Figs. 31 – 35. Euschistus (Euschistus) heros (Fabricius). Fig. 31. Lateral view. Fig. 32. Anterior view. Fig. 33. Magnification of the lateral wall, showing the AMP. Fig. 34. Magnification of AMP, showing connector sheets (asterisks). Fig. 35. Detail of AMP surface. Fig. 36. Euschistus (Lycipta) riograndensis Weiler & Grazia, anterior view. Abbreviations: amp – aero-micropylar process, ec – eclosion line, ga – granulated area, lw – lateral wall.