Use of exochorion characters for the systematics of Hamadryas Hübner and Ectima Doubleday (Nymphalidae: Biblidinae: Ageroniini) Author Nieves-Uribe, Sandra Museo de Zoología (Entomología), Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, México 04510 CDMX, México Author Flores-Gallardo, Adrián Museo de Zoología (Entomología), Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, México 04510 CDMX, México Author Llorente-Bousquets, Jorge Museo de Zoología (Entomología), Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, México 04510 CDMX, México llorentebousquets@gmail.com&llorentebousquets@gmail.com Author Luis-Martínez, Armando Museo de Zoología (Entomología), Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, México 04510 CDMX, México Author Pozo, Carmen Grupo Interacción, Adaptación y Biodiversidad, Departamento de Conservación de la Biodiversidad, El Colegio de la Frontera Sur (ECOSUR) Unidad Chetumal, Quintana Roo 77014, México. E-mail: cpozo @ ecosur. mx text Zootaxa 2019 2019-06-18 4619 1 77 108 journal article 21176 10.11646/zootaxa.4619.1.3 e48ca9ee-7e55-4ed0-a0c6-0898a7d75f83 1175-5326 3995458 0DAD3CBB-6238-48E5-B495-27CFA5774297 Hamadryas feronia farinulenta ( Fig. 8 A, B ). Eggs average 1194± 44 µm long and 1194± 64.89 µm wide (n = 10), as long as wide. Egg is globose foam and quasi-spheroidal, apical area is flat, and convex base is 1.2 times wider than the apex. The smooth and weak base corresponds to 1/10 the length of egg ( Fig. 8 A-i). Chorion shows six or seven knolls with soft edges but reduced and more conspicuous than in H. amphinome mazai ; most arise from the perimicropylar area and only one or two from the apical zone. Knolls may be continuous ( Fig. 8 A-ii, B-ii) or bi/trifurcated ( Fig. 8 A-iii, B-iii); apical ones are most noticeable. Bi/trifurcations and slumps of continuous knolls are between the first sixth and first apical quarter. Background grid exhibits pentagonal, hexagonal, and irregular polygons, with unstressed to rounded edges; polygons are reduced and narrowed in prebasal area where the division between the surface with grid and a smooth base is marked ( Fig. 8 A-iv). In the rest of chorion, polygons are larger than the prebasal ones and maintain a constant size until the beginning of the first apical quarter. They form a pattern of ‘coralligenous arborescent’, like Millepora dichotoma (Milleporidae) ( Fig.8 A-v); the trunk of the ‘tree’ emerges from prebasal area, and ‘ramifications’ penetrate the knolls. This arrangement makes it seem that polygons between knolls are smaller since those that are in the summits are larger (macro-cells). These macro-cells are on the summit of knolls from apical area to end of the first third; sometimes they are also in equatorial region. They are two to three times larger than the rest of polygons, and in some knolls, there are only one or two ( Fig. 8 A-vi, B-vi). Micropylar area is irregular and depressed concerning flat apical surface ( Fig. 8 B-vii); summits of knolls of apical region are most outstanding. Color A 20 M 00 N 00 . Material examined: México : Oaxaca : El Puente , 3 Km al E de Choapam ( 17°22’38”N , 95°55’20”W ), 620 msnm , 22-VI-2015 , trampa (ABD-1293); 24-VI-2015 , trampa (ABD-1348, ABD-1349); 24-VIII-2015 , trampa (ABD-1409, ABD-1415, ABD-1416).