The preimaginal development of Eueides isabella dianasa (Hübner, 1806) feeding on leaves of P.edulis was studied under laboratory conditions. The eggs were collected soon after oviposition. Eclosion, and ecdisys (confirmed by the cephalic capsules), pupation and adult emergence were registered daily. The egg viability was 94.9%. The embryonic period (in days ± average standard error) was 4.25 ± 0.18. The 16.9 ± 0.34 larval period has five instars: 2.75 ± 0.2; 2.8 ± 0.2; 3.0 ± 0.1; 3.6 ± 0.2 and 4.6 ± 0.15. The active larval period was 15.83± 0.34, followed by an one day prepupal period and a pupal instar of 7.42 ± 0.15 (8.4 ± 0.15 inactive period of the post-embryonic development). The post-embryonic development was 24.25 ± 0.37. The total pre-imaginal period was 28.5 ± 0.44 long and may be considered short. The relative duration was 14.9% for the embryonic period and 85.9% for the post-embryonic. The use of the time in the post-embryonic development was 11.3%, 11.7%, 12.4%, 14.8%, 18.9%, 30.6% respectively for L1, L2, L3, L4, L5 and pupa. The larval period represented 65.3% while the inative (prepupa + pupa) 34.7%. The survival at the end of the development, considering the egg period, was 27.5% and considering the post-embryonic period, 30,0%. It was more evident on the 5th instar and at the pupal period, with 63.0% and 64.7%, respectively. This is the first record of Eueides isabella dianasa for the State of Alagoas, Brazil.
Eueides isabella dianasa; life cycle; new record; relative duration; survival
