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| Mariottini,Y; de Wysiecki,ML; Lange,CE. |
| Dichroplus maculipennis (Blanchard) and D. elongatus Giglio-Tos are two of the most important melanoplines in Argentina, both ecologically and economically. The postembryonic development and forage loss (consumption of Bromus brevis Ness + fallen material) caused by older nymphs (instars IV, V, VI) and adults of both species were studied under controlled conditions (30ºC, 14L:10D, 40% RH). Five nymphal instars were recorded in D. elongatus, and six in D. maculipennis. Total nymphal development was similar in both species (D. elongatus: 32 ± 0.70 days; D. maculipennis: 34.5 ± 0.37 days). Daily consumption increased from nymphal instars to pre-reproductive adult stage. In both species, pre-reproductive females had higher consumption rates than other stages... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grasshopper; Nymphal development; Loss of forage. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000200006 |
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| Silva,Maria B A; Jurberg,José; Galvão,Cleber; Barbosa,Helene S. |
| Ultrastructural analysis of the ventral region of the head - rostrum, buccula and stridulatorium sulcus - of 1st, 3rd and 5th instars of Triatoma klugi Carcavallo et al, Triatoma vandae Carcavallo et al, and Triatoma williami Galvão et al, are described in here. Morphological differences in the analyzed structures for all three Triatoma species studied were detected under scanning electron microscopy, allowing their grouping by their morphological similarities. Species-specific differences at each nymphal development stage were analyzed as well. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triatominae; Morphology; Nymphal development; T.oliveirai complex. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100006 |
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| Mariottini,Y.; De Wysiecki,M.L.; Alberti,A.; Lange,C.E.. |
| Abstract Borellia bruneri, a common grasshopper in much of the grasslands of Argentina and Uruguay, is considered, according to the categories widely accepted for defining the pest status of grasshopper species, a “Frequent plague of importance”. In order to determine fundamental aspects of its biology and reproduction, three cohorts of B. bruneri were monitored under controlled conditions (30º C, 14L: 10D, 40% RH). The total duration of nymphal development was 50.6 days, both males and females having five nymphal instars. There was a significant difference in the duration of the different stages within each cohort. In the three cohorts, the first instar duration (12.87 days) was longer than the rest, approximately 5.6 days more than the second that was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grasshoppers; Cohorts; Longevity; Fecundity; Nymphal development. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100207 |
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| Didonet,Julcemar; Zanuncio,José Cola; Sediyama,Carlos S.; Picanço,Martelo C.. |
| The effect of temperature on the development of Podisus nigrispinus (Dallas, 1851) and Supputius cinctceps (Stål, 1860) was studied in order to adjust equations to predict the development of these predators under 18, 20, 25, 30, 32 and 35º±0.2ºC, relative humidity of 65±10% and photophase of 12 hours. Incubation period of the eggs and duration and viability of nymphal stage were quadratically influenced by temperature while egg viability decreased linearly with increased temperature. The best temperature for egg development was 29ºC for both species and for nymphal development of P. nigrispinus and S. cincticeps they were 29º and 28ºC respectivelly. Nymphal viability was highly affected by extreme temperatures, with optima around 24ºC for S. cincticeps and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroptera; Pentatomidae; Podisus nigrispinus; Supputius cincticeps; Nymphal development; Predators. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300005 |
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