Which way does the mother butterfly hide her egg?

▲The adult butterfly of Walnut Blue Hairstreak (Chaetoprocta odata) with the magnified abdomens of both sexes (after Kato et Harada (1995))

▲Eggs which are covered by hairs (ibid.)

Which way does the mother butterfly hide her egg --- to use own hairs or to collect dusts? (Continued to the previous post)

   Previous post has been popular among readers of this blog because the movie file was quite unique. Many experts gave suggestive comments. While the author of this blog stopped to think over the ecology of Lycaenidae, he remembered one old article of our journal. The article introduces another Lycaenidae, a kind of Zephyrus Hairstreak, which has a habit of hiding its eggs by its own hairs on the abdomen. The above images are from Butterflies No. 10 (1995). This species, Walnut Blue Hairstreak (Chaetoprocta odata) is known from India and Nepal. As the name explains, its hostplant is the walnut trees (Juglans spp.). Females of this species have a ball-like cluster of hairs on the tip of their abdomen. When they lay eggs, they rub these hairs against their eggs to hide. Which way does the mother butterfly hide her egg --- to use own hairs or to collect dusts? The evolution of such behavior found in some Lycaenidae is quite interesting.