Description and comparison of morphological structures of the eggs of Anopheles hyrcanus group and related species (Diptera: Culicidae) from the Republic of Korea Author Rueda, Leopoldo M. Author Brown, Tracy L. Author Kim, Heung-Chul Author Klein, Terry A. Author Thongkukiatkul, Amporn Author Sherwood, Van text Zootaxa 2009 2268 23 40 journal article 10.5281/zenodo.190892 fdae6ed9-7729-4513-8a84-39fa12b0e7b5 1175-5326 190892 5. Anopheles lindesayi japonicus S. Yamada ( Fig. 3 E, 4E, 5E, 6E) Size: Length 495.72–546.28 um (mean 522.15 um, n = 5); width 62.10–93.43 (mean 73.82 + 12.21 um, n = 5) (Table 1). Color: Black. Overall appearance : Slightly boat-shaped in both ventral and dorsal views, anterior end blunt, posterior end slightly pointed, sometimes blunt. Ventral surface slightly concave, dorsal surface curved, float relatively short and wide in dorso-ventral plane, length 62.10–93.43 um (mean 73.82 + 12.21 um, n = 5); width 88.14–110.70 um (mean 102.72 + 10.23 um, n = 5). Dorsal and lateral surfaces : All surfaces uniformly covered with mostly pentagonal and hexagonal outer chorionic cells or plastron-type cells. ( Fig. 3 E), each longer than wide, long dimension oriented in long axis of egg. Interior of each cell with perforated meshwork, surrounded by an elevated, palisade-like outer chorionic reticulum. Cell area 114.15– 116.13 um (mean 115.13 + 99.11, n = 3) (Table 1). Float fairly long, about 0.76 length of egg; ratio of float length and width, and length in proportion to egg length and number of ribs as in Table 1. Ribs towards both ends of float slightly wider than those at middle part, slightly striated on dorsal sides; number of ribs per float 24–28 (mean 25.00 + 1.55, n = 6). Ventral surface. Deck continuous, slightly narrows at both ends of float, degree of narrowing usually variable; anterior part of deck usually slightly wider than posterior part; entire deck covered uniformly with fine tubercles ( Fig. 4 E). Frill continuous, shallow along narrowed portion of deck. Lobed ventral tubercles at anterior end of the deck, 5 (n = 2), and at posterior end, 4 (n = 4), (Table 1, Fig. 5 E). Lobed ventral tubercles usually round, occasionally oval or oblong. Lobes of each anterior ventral tubercle, 5–9 (mean 7.07 + 1.07, n = 14); lobes of each posterior ventral tubercle, 4–7 (mean 5.20 + 1.10, n = 5). Lobes clearly separated, often swollen at ends, outer walls often smooth. Lobes in slightly elevated, striated structures. Anterior end, micropyle . Anterior end slightly more blunt than posterior end. Micropylar collar irregular in outline, with smooth surface, inner edge uniformly and deeply excavated, peaks between excavations tapering to form radial ridges extending about half way across micropylar disc, dividing disc into sectors ( Fig. 6 E). Number of sectors (or ridges) 7 (n = 3). Area of micropylar disc 114.15–116.13 um (mean 115.13 + 99.11 um, n = 3), usually with striated surface.