Chinavia musiva, Berg, 1878

Matesco, Viviana C., Fürstenau, Brenda B. R. J., Bernardes, Jorge L. C., Schwertner, Cristiano F. & Grazia, Jocélia, 2009, Morphological features of the eggs of Pentatomidae (Hemiptera: Heteroptera) *, Zootaxa 1984, pp. 1-30 : 12

Chinavia musiva

( Figs. 5, 6 , 68–72 ; Tab. 2 )

Eggs barrel-shaped, almost cylindrical, green; operculum circular and convex; chorion surface almost smooth and translucent after hatching of nymphs; aero-micropylar processes white and oblong, clavated at apex ( Fig. 5 ). With the development of the embryo, the egg becomes dark green and with dark red eyes, two median red strips, and dark brown ruptor ovis become visible ( Fig. 6 ) ( Matesco et al. 2008a).

In SEM, chorion of C. musiva eggs shows a granulated sculpture pattern ( Fig. 68 ): it is nearly smooth, without depressions, but with tumid, circular areas scattered over all surfaces ( Figs. 69, 70 ). There were no differences in chorion sculpture in different areas of egg; the operculum limit—the eclosion line—is marked by a furrow in the chorion ( Fig. 68 ). Aero-micropylar processes are oblong, with a short cylindrical stalk that decreases in diameter toward base, and a long and wide apical portion, with a subapical hole ( Fig. 71 ). Even in small magnification ( Fig. 71 ), the spongy texture of aero-micropylar processes surface can be observed ( Fig. 72 ).

Figures

FIGURES 1–10. Eggs of Pentatomidae. Fig. 1. Fertile eggs of Euschistus (Mitripus) convergens in dorsal view. Ruptor ovis (arrow). Fig. 2. Fertile eggs of Chinavia erythrocnemis in dorsal view. Aero-micropylar process (arrow). Fig. 3. Eggs of Chinavia longicorialis in dorsal view. Fig. 4. Eggs of Chinavia pengue in dorsal view. Fig. 5. Eggs of Chinavia musiva in dorsal view. Fig. 6. Fertile eggs of C. musiva in dorsal view. Eye (arrow). Fig. 7. Eggs of Grazia tincta in dorsal view. Fig. 8. Egg of Odmalea basalis in dorsal view. Fig. 9. Eggs of O. basalis in lateral view. Fig. 10. Eggs of Thyanta humilis in dorsal view.

FIGURES 56–70. Eggs of Chinavia spp. in SEM. Fig. 56. Anterior pole of C. obstinata egg. Cells with irregular rims (asterisk); apical hole of an aero-micropylar process (arrow). Fig. 57. Operculum surface of the egg chorion of C. obstinata. Fig. 58. Detail of an aero-micropylar process of C. obstinata egg, with spongy surface. Fig. 59. Egg of Chinavia pengue in lateral view. Posterior pole with sheets of adhesive material to egg fixation to the substratum (arrow). Fig. 60. Egg of C. pengue in dorsal view. Fig. 61. Chorion of lateral wall of C. pengue egg. Fig. 62. Detail of the lateral wall chorion of C. pengue egg. Cell with blind bottom (arrow). Fig. 63. Lateral wall of C. pengue egg near the aero-micropylar processes. Smaller and deeper polygonal cells (arrow); connector sheets between an aero-micropylar process and adjacent area of the anterior pole (asterisk). Fig. 64. Chorion surface at operculum of C. pengue egg. Fig. 65. Detail of a cell at operculum of C. pengue egg. Central area with blind bottom (arrow). Fig. 66. Aero-micropylar processes of C. pengue egg, with fine connector sheets (asterisk). Fig. 67. Detail of the aero-micropylar processes of C. pengue egg. Apical hole (arrow); connector sheets (asterisk). Fig. 68. Egg of Chinavia musiva, in laterodorsal view. Fig. 69. Detail of the lateral wall of C. musiva egg. Fig. 70. Chorion of C. musiva egg, marked by circular areas over the surface (arrow). (amp—aero-micropylar process; el—eclosion line; op—operculum).

FIGURES 71–85. Eggs of Pentatomidae in SEM. Fig. 71. Detail of the chorion and aero-micropylar process of C. musiva egg. Aero-micropylar process with a subapical hole (arrow). Fig. 72. Detail of the spongy aero-micropylar process of C. musiva egg. Fig. 73. Egg of Grazia tincta in lateral view, showing the anterior pole without operculum and the posterior pole with sheets of adhesive material. Fig. 74. Chorion surface of the lateral wall of G. tincta egg. Fig. 75. Detail of the lateral wall of G. tincta egg. Central area of a hexagonal cell (arrow). Fig. 76. Hexagonal cells of the chorion of G. tincta egg, with spine-like projections. Fig. 77. Anterior pole of G. tincta egg. Fig. 78. Detail of the chorion surface of G. tincta egg, with long and filiform projections. Fig. 79. Aero-micropylar process of G. tincta egg. Central hole (arrow). Fig. 80. Detail of the spongy surface of an aero-micropylar process of G. t inc t a egg. Fig. 81. Egg of Loxa deducta in lateral view. Posterior pole with sheets of adhesive material (arrow). Fig. 82. Egg of L. deducta in dorsal view. Fig. 83. Detail of the lateral wall chorion of L. deducta egg. Fig. 84. Anterior pole of L. deducta egg, with long and numerous spines near the aero-micropylar processes. Fig. 85. Aero-micropylar process of L. deducta egg. Apical hole (arrow). (amp—aero-micropylar processes; ap—anterior pole; el—eclosion line; op—operculum; pp—posterior pole).