Development time recruitment and synchrony betwen Misumenops pallidus (Keyserling) (Araneae: Thomisidae), and two potential prey species in soybean cultures in Argentina

GONZÁLEZ, A; LILJESTHROM, GERARDO; CASTRO , D DEL C.; ARMENDANO, A.

Entomolical News

American Entomological Society

Año: 2008 vol. 120

0013-872X

Misumenops pallidus life cycle and recruitment were studied under both laboratory and field conditions during two consecutive years. The life cycle included the egg stage, seven or eight juvenile instars and the adult stage. The first three instars developed within the egg sac, while the others developed as free living individuals. Total body length increased from 3.2mm in the 3rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± laboratory and field conditions during two consecutive years. The life cycle included the egg stage, seven or eight juvenile instars and the adult stage. The first three instars developed within the egg sac, while the others developed as free living individuals. Total body length increased from 3.2mm in the 3rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± laboratory and field conditions during two consecutive years. The life cycle included the egg stage, seven or eight juvenile instars and the adult stage. The first three instars developed within the egg sac, while the others developed as free living individuals. Total body length increased from 3.2mm in the 3rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± life cycle and recruitment were studied under both laboratory and field conditions during two consecutive years. The life cycle included the egg stage, seven or eight juvenile instars and the adult stage. The first three instars developed within the egg sac, while the others developed as free living individuals. Total body length increased from 3.2mm in the 3rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according growth and maturity in females (females would consume 81% of all preys in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (±± 30.76) and 161.3 (± 45.4) days, respectively. The developmental time from IV instar (the first free living instar) to the adult stage (114.2 ± 22.83 days) was very variable and long, suggesting that all IV instars of M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii that all IV instars of M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii that all IV instars of M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii ± 22.83 days) was very variable and long, suggesting that all IV instars of M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential preys: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildiniidefoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii exhibited complete synchrony with the local spider population in the studied commercial soybean plot.