External egg structure of the Pentatomidae (Hemiptera: Heteroptera) and the search for characters with phylogenetic importance Author Matesco, Viviana Cauduro Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil vimatesco@yahoo.com.br Author Bianchi, Filipe Michels Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil bianchi.fm@hotmail.com Author Fürstenau, Brenda Bianca Rodrigues Jesse Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil brendabianca@gmail.com Author Silva, Priscila Poock Da Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil pripoock@terra.com.br Author Campos, Luiz Alexandre Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil luiz.campos@ufrgs.br Author Grazia, Jocelia Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gançalves, 9500, Bloco IV, Prédio 43435, 91501 - 970. Porto Alegre, RS, Brazil jocelia@ufrgs.br text Zootaxa 2014 2014-02-26 3768 3 351 385 journal article 46347 10.11646/zootaxa.3768.3.5 d8748b65-5cf8-489c-972a-85f4329f07d2 1175-5326 252047 076F3E92-066C-46A0-9ADE-09D3AA8F8707 Chinavia armigera (Stål, 1854) , Chinavia aseada (Rolston, 1983) , Chinavia brasicola (Rolston, 1983) , Chinavia runaspis (Dallas, 1851) ( Figs. 6–9 , 47–65 ; Tab. 2 ) Eggs barrel-shaped; light brown prior to embryonic development; operculum round and convex; chorion light brown, reticulated, and usually opaque ( Figs. 7–9 ), shiny in C. armigera ( Fig. 6 ). The eclosion line evident under SM and indicated as a smooth band delimited by the AMPs ( Figs. 6, 8, 9 ). With the development of the embryo, the red eyes of the nymph become evident through the chorion ( Fig. 6 ). The aero-micropylar processes are circularly arranged in a row around the anterior pole, clubbed, and translucent ( C. aseada ) to white (remaining species) ( Figs. 6–9 ). The chorion surface of all species of Chinavia Orian studied here is reticulated under SEM, with circular or polygonal cells ( Figs. 47 , 52, 56, 60 ). In some species, these cells may be quite regularly hexagonal at the lateral wall ( Fig. 49 ). The cells project inward in a funnel, appearing to bear a hole ( Figs. 49, 54, 58 ). The operculum is similarly sculptured but with smaller cells at center ( Figs. 48 , 50, 53, 57 , 61, 62 ). The eclosion line is wide and clearly evident, marked by several minute and irregular projections ( Figs. 51, 55, 59 , 63 ). The AMPs are moderately short and strongly clubbed, with their openings circular and apical ( Figs. 51, 54, 55, 58, 59 , 63, 64 ). Fine connector sheets among adjacent AMPs have been observed in some of the eggs of all species ( Figs. 51, 54, 55, 58 , 64 ). Under higher magnification, the AMPs surface is spongy ( Figs. 51, 55, 59 , 65 ).