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 Mormidea cornicollis Stål, 1860 ( Figs. 4, 5 , 43–46 ; Tab. 2 ) Eggs barrel-shaped; light yellow prior to embryonic development; operculum round and convex; chorion translucent and spinose ( Fig. 4 ). Eggs darker, with two irregular red stripes and red eyes evident in anterior view after embryonic development ( Fig. 5 ). The eclosion line not evident under SM, and the AMPs are circularly arranged in a row around the anterior pole, white, and moderately long ( Figs. 4, 5 ). Under SEM, the chorion surface is spinose, and the spines are short. The interconnected spines form faintly distinct polygonal markings at the lateral wall; the sculpture pattern is altered where the eggs were attached to another ( Fig. 43 ). The operculum is similarly sculptured, displaying spines of different sizes, and the polygonal markings are especially apparent ( Figs. 44, 45 ). The eclosion line is not discernible. The AMPs are slender, only slightly clubbed, and bear circular and apical openings ( Fig. 46 ). Their surface is clearly spongy under higher magnification ( Fig. 46 ).