81 KB309 KB45 KB199320242008Ambrose, Dunston P.Das, S. Sam Manoharštevilka:1letnik:1620 stranistr. 37-56ISSN:1318-1998COBISSID:665589URN:URN:NBN:SI:doc-R3CK71VVenPrirodoslovni muzej SlovenijeSlovensko entomološko društvo Štefana MichielijaActa entomologica slovenica (Ljubljana)biologijabiologyentomologijamorfologijasteniceRedescription, biology and behaviour of the Harpactorine assassin bug Irantha armipes (Stal) (Hemiptera: Reduviidae)| Ponovni opis, biologija in vedenje roparske stenice vrste Irantha armipes (Stal) (Hemiptera: Reduviidae: Harpactorinae)|A redescription of Irantha armipes (Stal) is given and its behaviour in the laboratory is described. Irantha armipes eggs have brown chorion and white rim-collar veil covering a brown convex, finely sculptured operculum. A femaleon average laid 97.28 3.2 eggs in 12.9 0.86 clusters with 1 to 15 eggs per cluster. The eggs hatched after 9.1 0.77 days. The developmental durations of the I, II, III and IV nymphal instars and V nymphal instar to adult male and adult female were 8.2 0.67, 9.4 0.78, 10.1 0.91, 9.8 0.82, 9.8 0.68 and 11.2 0.91 days respectively. Measurements and illustration of life stages are given with a key to identify the nymphal stages. The sex ratio of male and female was 1 : 0.94. The preoviposition, oviposition and postoviposition periods were 9.8 0.62, 72 4.5 and 4.5 0.29 days respectively. The adult males and females lived for 76.9 6.1 and 86.4 4.6 days. Sequential acts of predatory behaviour such as arousal, approach, capturing, paralysing, sucking and postpredatory behaviour were observed. The sequential acts of mating behaviour were excitation, approach, nuptial clasp including riding over, genitalia extension, connection achievement and postcopulatory behaviourPodan je ponoven opis vrste Irantha armipes (Stal) in opisano je njeno vedenjev ujetništvu. Jajčeca imajo rjav horion in belo ovratno tančico, ki pokriva rjav izbočen, drobno strukturiran operkulum. Samica je v povprečju izlegla 97,28 3,2 jajčec v 12,9 0,86 gručah z 1 do 15 jajčeci na gručo. Ličinke so se izlegle po 9,1 0,77 dneh. Dolžine razvoja ličink I., II., III.in IV. stadija ter V. stadija do odraslih samcev in samic je bila 8,2 0,67, 9,4 0,78, 10,1 0,91, 9,8 0,82, 9,8 0,68 in 11,2 0,91 dni. Podane so meritve in risbe razvojnih stadijev s ključem za njihovo določitev. Spolno razmerje je bilo 1 : 0,94 v korist samcev. Obdobja pred, med in po odlaganju jajčec so bila dolga 9,8 0,62, 72 4,5 in 4,5 0,29 dni. Odraslisamci in samice so živeli 76,9 6,1 in 86,4 4,6 dni. Opazovali smo zaporedna dejanja plenilskega vedenja, kot so pozornost, približevanje, ulov, ohromitev in sesanje plena ter vedenje po lovu. Zaporedna dejanja spolnega vedenja so bila vzburjenje, približevanje, svatbeni objem vključujoč jahanje na hrbtu, iztegnitev genitalij, opravljena povezava in vedenje po kopulacijiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaPrirodoslovni muzej Slovenije