caa a22 4500 46576228X CHVBK 20180323111902.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF02350123 doi (NATIONALLICENCE)springer-10.1007/BF02350123 Ichikawa Noritaka Himeji City Aquarium, 670, Himeji, Hyogo, Japan aut Egg mass destroying behaviour of the female giant water bug Lethocerus deyrollei Vuillefroy (Heteroptera: Belostomatidae) [Elektronische Daten] [Noritaka Ichikawa] After being laid on emergent aquatic vegetation, the egg masses ofLethocerus deyrollei are brooded by the male. In laboratory studies, females were observed to destroy egg masses and ingest the fluid of eggs. Brooding males fought with these attackers at first, but then gave up the defense and mated with them. After destroying the egg masses, females laid new ones at the same sites on the same night or the following one, and males brooded the new offspring. The population density of this species is very low. Most males engage in brooding and cease to become acceptable mates after most of the females lay the first egg masses. It is costly for females to search out free males in the aquatic vegetation. By destroying egg masses, however, individual females can gain new mates with little exertion and can make them brood their own offspring. Furthermore, the survival of their own offspring increases with the elimination of their competitors. Japan Ethological Society, 1990 Journal of Ethology Springer-Verlag 8/1(1990-06-01), 5-11 0289-0771 8:1<5 1990 8 10164 https://doi.org/10.1007/BF02350123 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02350123 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Ichikawa Noritaka Himeji City Aquarium, 670, Himeji, Hyogo, Japan aut NATIONALLICENCE 773 0- Journal of Ethology Springer-Verlag 8/1(1990-06-01), 5-11 0289-0771 8:1<5 1990 8 10164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer