Morphological features of the eggs of Pentatomidae (Hemiptera: Heteroptera) * Author Matesco, Viviana C. Departamento de Zoologia, Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, 91501 - 970, Porto Alegre, RS, Brazil vimatesco@yahoo.com.br Author Fürstenau, Brenda B. R. J. Departamento de Zoologia, Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, 91501 - 970, Porto Alegre, RS, Brazil Author Bernardes, Jorge L. C. Departamento de Zoologia, Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, 91501 - 970, Porto Alegre, RS, Brazil Author Schwertner, Cristiano F. Departamento de Zoologia, Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, 91501 - 970, Porto Alegre, RS, Brazil acrosternum@yahoo.com.br Author Grazia, Jocélia Departamento de Zoologia, Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Bloco IV, Prédio 43435, 91501 - 970, Porto Alegre, RS, Brazil jocelia@ufrgs.br text Zootaxa 2009 2009-01-21 1984 1 30 journal article 10.11646/zootaxa.1984.1.1 c42f0ede-470b-465d-baac-44b1bb2d144f 1175-5326 185387 Chinavia erythrocnemis , Chinavia longicorialis , Chinavia obstinata , and Chinavia pengue ( Figs. 2–4 , 37–67 ; Tab. 2 ) Eggs barrel-shaped; operculum circular and convex; chorion surface reticulated, light brown ( Figs. 2–4 ). Chorion surface was erroneously described as white-translucent and granular in C. obstinata ( Matesco et al. 2003 ) ; in fact, a light brown color of the eggs is due to a pigmented chorion, and its sculpture fits the reticulated pattern described by Bundy & McPherson (2000) . Aero-micropylar processes white, clavate at apex. With the development of embryo, red eyes, and dark brown ruptor ovis become visible ( Fig. 2 ). Ruptor ovis triangular, translucent, dark brown at the base and along the median line ( Matesco et al. 2003 , 2006, 2007, 2008b). 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. Egg surface, in SEM, in a reticulated sculpture pattern ( Figs. 37, 38 , 47, 48, 54 , 59, 60 ), with polygonal, often hexagonal, cells ( Figs. 39, 40 , 61 ). In C. longicorialis , chorion has shallow polygonal cells, with slightly defined contour ( Fig. 49 ). Those cells projected inward in a funnel, which seems to bear a hole ( Figs. 41, 44, 52 ). Lateral walls of egg with more or less regular cells ( Figs. 39, 40 , 49 , 61 , 62 ); at oval area where eggs are fixed to each other in the egg mass or to the substratum sculpture pattern is altered ( Figs. 37 , 47 , 59 ). Near aero-micropylar processes, polygonal cells smaller and deeper, with irregularly projected rims ( Figs. 42, 50, 55 , 63 ). The eclosion line, within the ring of aero-micropylar processes, is well delimited, devoid of depressions, and marked by a wrinkled area with dense capillary projections ( Figs. 42, 50 , 56 ). At the operculum, polygonal cells are smaller, deeper, and less delimited ( Figs. 43, 51 , 57, 64 ); sometimes seeming to bear a hole ( Figs. 44, 52 ). In C. pengue , cells at lateral wall of the egg ( Fig. 62 ) as well as at the operculum ( Fig. 65 ) have a blind bottom. Aero-micropylar processes clavated, with a stalk that decreases in diameter toward the base, and a bulbous apical part, which bears an apical opening ( Figs. 45, 50, 53 , 56, 63, 67 ). Aero-micropylar processes surface in a spongy texture ( Figs. 46, 53 , 58, 67 ). In C. pengue , fine connector sheets were found among adjacent aero-micropylar processes or between the process and adjacent area of the anterior pole ( Figs. 63, 66, 67 ).