Selecting a character for identifying larval instars of the lepidopteran stemborers Sesamia calamistis Hampson (Noctuidae) and Eldana saccharina walker (Pyralidae) in maize

In experiments to select a character for identifying larval instars in Sesamia calamistis and Eldana saccharina, body length, body width and head capsule width were measured in populations reared on artificial diet. Seven instars were found in S. calamistis and 5 in E. saccharina. For both species,...

Full description

Saved in:
Bibliographic Details
Published in:Insect science and its application 1998-06, Vol.18 (2), p.101-103
Main Authors: Bonato, O., Schulthess, F.
Format: Article
Language:English
Subjects:
Eldana saccharina
Noctuidae
Pyralidae
Sesamia calamistis
Zea mays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In experiments to select a character for identifying larval instars in Sesamia calamistis and Eldana saccharina, body length, body width and head capsule width were measured in populations reared on artificial diet. Seven instars were found in S. calamistis and 5 in E. saccharina. For both species, body length was determined to be the best characteristic to distinguish instars because it was easy to measure and had the smallest error. Longueur et largeur du corps ainsi que largeur de la capsule céphalique ont été choisies pour identifier les différents stades larvaires de Sesamia calamistis et Eldana saccharina. Sept stades larvaires on été caractérisé pour S. calamistis et cinq pour E. saccharina, les deux espèces étant élevées sur milieu artificiel dans les conditions de laboratoire suivantes: 28 ± 0.5°C, 80 ± 10%RH, 12L:12D. Pour les deux espèces, la longueur du corps se révèle le meilleur caractère pour l'identification des stades car il est le plus facile à mesurer avec un minimum d'erreur.
ISSN:0191-9040
1742-7584
1742-7592
DOI:10.1017/S1742758400007724