Serdia apicicornis Stål, 1860

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 : 371

Serdia apicicornis Stål, 1860

( Figs. 11 , 70–73 ; Tab. 2 )

Eggs spherical; light green prior to embryonic development; operculum broadly round and convex; chorion translucent and granulated ( Fig. 11 ). The eclosion line is not evident under SM, and the AMPs are circularly arranged in a row around the anterior pole, slightly displaced posteriorly, translucent, short, and clubbed ( Fig. 11 ). The chorion surface is granulated under SEM, with perfectly circular projections evenly distributed ( Figs. 70, 72 ). Although the egg may be described as spherical, the posterior pole is flatter than the anterior pole and bears traces of the adhesive material secreted by the female to glue the eggs to the substrate ( Fig. 70 ). The operculum is similarly sculptured ( Fig. 71 ), and the eclosion line is present as a narrow strip very near the AMPs, with smaller granules placed closer to each other ( Fig. 72 ). Except for the eclosion line, the surface of the egg is remarkably uniform. The AMPs are very small, club-shaped, with circular and apical openings ( Figs. 72 , 73 ). Under higher magnification, the surface of the processes is slightly spongy ( Fig. 73 ).

Figures

FIGURES 1 – 12. Eggs of the Pentatomidae viewed with stereomicroscopy. Fig. 1. Podisus nigrispinus (Dallas), egg mass, anterior view. Fig. 2. Euschistus (Lycipta) riograndensis Weiler & Grazia, lateral view. Fig. 3. Euschistus (Mitripus) paranticus Grazia, lateral view. Figs. 4 and 5. Mormidea cornicollis Stål. Fig. 4. Newly laid eggs, anterior view. Fig. 5. Fertile eggs, anterior view. Fig. 6. Chinavia armigera (Stål), fertile eggs, anterior view. Fig. 7. Chinavia aseada (Rolston), lateral view. Fig. 8. Chinavia brasicola (Rolston), anterior view. Fig. 9. Chinavia runaspis (Dallas), anterior view. Fig. 10. Banasa induta Stål, lateral view. Fig. 11. Serdia apicicornis Stål, anterior view. Fig. 12. Thoreyella maracaja Bernardes, Schwertner & Grazia, lateral view. Scale bar = 1 mm.

FIGURES 61 – 72. Eggs of the Pentatomidae viewed with SEM. Figs. 61 – 65. Chinavia runaspis (Dallas). Fig. 61. Anterior view. Fig. 62. Magnification of anterior pole. Fig. 63. Magnification of the lateral wall, showing the eclosion line and the AMP. Fig. 64. Detail of AMP and connector sheets (asterisks). Fig. 65. Detail of AMP surface. Figs. 66 – 69. Banasa induta Stål. Fig. 66. Lateral view. Fig. 67. Anterior view. Fig. 68. Magnification of anterior pole, showing the AMP. Fig. 69. Detail of AMP surface. Figs. 70 – 72. Serdia apicicornis Stål. Fig 70. Lateral view. Fig. 71. Anterior view. Fig. 72. Magnification of the lateral wall, showing the eclosion line and the AMP. Abbreviations: amp—aero-micropylar process, ec—eclosion line, lw—lateral wall.

FIGURES 73 – 81. Eggs of the Pentatomidae viewed with SEM. Fig. 73. Serdia apicicornis Stål, detail of AMP. Figs. 74 – 76. Thoreyella maracaja Bernardes, Schwertner & Grazia. Fig. 74. Lateral view. Fig. 75. Anterior view. Fig. 76. Magnification of anterior pole, showing the AMP. Figs. 77 – 81. Capivaccius bufo Distant. Fig. 77. Anterior view. Fig. 78. Magnification of the lateral wall. Fig. 79. Magnification of anterior pole, showing the eclosion line and the AMP. Fig. 80. Detail of anterior pole. Fig. 81. Detail of AMP. Abbreviations: amp—aero-micropylar process, ec – eclosion line.