Pre-diapause mating and overwintering of fertilized adult females: New aspects of the life cycle of the wing-polymorphic bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

0347713 - BC 2011 RIV CZ eng J - Journal Article
Socha, Radomír
Pre-diapause mating and overwintering of fertilized adult females: New aspects of the life cycle of the wing-polymorphic bug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae).
European Journal of Entomology. Roč. 107, č. 4 (2010), s. 521-525. ISSN 1210-5759. E-ISSN 1802-8829
R&D Projects: GA ČR GAP501/10/1215
Institutional research plan: CEZ:AV0Z50070508
Keywords : pre-diapause mating * fertilized females * overwintering
Subject RIV: ED - Physiology
Impact factor: 0.945, year: 2010
http://www.eje.cz/scripts/viewabstract.php?abstract=1561

New aspects of the life-cycle of the firebug Pyrrhocoris apterus are described. It was found that 1.1-14.9 % of the adult females of P. apterus in 11 samples collected from 4 populations in the South Bohemia had mated prior to entering diapause and their ovaries were in the pre-vitellogenic stage of development with viable sperm in their spermathecae. Some of these females successfully overwintered. The percentage of overwintering fertilized females ranged from 1.1 to 7.2 % and depended on the month and year of collection. The results demonstrate that pre-diapause mating and overwintering of fertilized females is not unusual in populations of P. apterus in the Czech Republic and and that sperm in overwintering female survives for at least 7-8 months.
Permanent Link: http://hdl.handle.net/11104/0006030