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International Journal of Tropical Insect Science | 1994

Rearing, developmental biology and host plant range of the rice skipper Pelopidas mathias (F.)(Lepidoptera: Hesperiidae)

J. A. Litsinger; Vichien Bumroongsri; Wendell L. Morril; Ouab Sarnthoy

When reared in the greenhouse, the rice skipper, Pelopidas mathias (F.) (Lepidoptera: Hesperiidae), laid 2–3 times fewer eggs than Held collected females held under the same conditions. Adult-emergence and mating/oviposition cages may have to be placed in environmental chambers with controlled temperature and photoperiod to achieve normal mating and oviposition. Rearing required a mating’oviposition-cage at least 3 m3 in volume and honey as sustenance. Eggs and larvae were held in larval rearing cages and pupae were removed and held in adult emergence cages. Maximum oviposition occurred at dawn. The total developmental period from egg to adult was 34.7 days. P. mathias demonstrated a greater oviposition preference for rice and Paspalum conjugatum Berg, than for Dactyloctenium aegyptium (L.) Willd. P. mathias successfully developed to adulthood on all 24 species of Poaceae tested, exclusive of rice, but did not survive on the six species of Cyperaceae tested. Low populations of P. mathias in rice can be attributed to its low fecundity, wide host range, and equal adaptability to upland and lowland environments, thus diluting its number.RésuméDans l’elevage de l’hesperide du riz Pelopidas mathias (F.) (Lepidoptera: Hesperiidae), il est difficile d’atteindre un accouplement et une fécondité normaux. Des chambres climatisées avec une photoperiode et des temperatures controllées peuvent etre nécessaires. Sous conditions de serre, l’oviposition de P. mathias etait de 2 a 3 fois moindre que dans la nature. L’élevage exigait une case d’accouplement/d’oviposition d’au moins de 3 m3 de volume et du miel comme nourriture. Les oeufs et les larves ont été maintenus dans les cages d’élevage tandisque les crysalides ont été enlevées et suspendues dans les cages d’émergence des adultes. L’oviposition maximale a eu lieu pendant la crépuscule. La periode totale du developpement oeuf-adulte était de 34,7 jours. P. mathias a montré une grande préference d’oviposition sur le riz et sur le Paspalum conjugatum Berg. que sur le Dactyloctenium aegyptium (L.) Willd. P. mathias s’ est developpé avec succés jusqu’ au stade l’adolescence sur toutes les 24 espéces de gramineés testeés mais il s’est creuvé completement sur les 6 espéces de Cyperacées. Les faibles populations de P. mathias sur le riz peuvent être attribuées à la faible fécondité, à une large gamme de plante hôtes et à une adaptabilite égale aux environnements du riz pluvial et du riz de bas-fond, ainsi de diluer son abondance.


Molecular Phylogenetics and Evolution | 2004

Molecular phylogeny of Asian termites (Isoptera) of the families Termitidae and Rhinotermitidae based on mitochondrial COII sequences

Moriya Ohkuma; Hiroe Yuzawa; Weerawan Amornsak; Yupaporn Sornnuwat; Yoko Takematsu; Akinori Yamada; Charunee Vongkaluang; Ouab Sarnthoy; Nit Kirtibutr; Napavarn Noparatnaraporn; Toshiaki Kudo; Tetsushi Inoue


Kasetsart Journal. Natural Sciences | 2000

Comparative Study of Artificial Diet and Soybean Leaves on Growth, Development and Fecundity of Beet Armyworm, Spodoptera exigua (Hubner) (Lepidoptera : Noctuidae)

Ouab Sarnthoy


Journal of Economic Entomology | 1992

Cold Temperature Treatment for Mangosteens Infested with the Oriental Fruit Fly (Diptera: Tephritidae)

Intawat Burikam; Ouab Sarnthoy; Kosol Charernsom; Takeo Kanno; Haruki Homma


Archive | 2001

Efficacy of Cypermethrin, Neem Extract and Bacillus thuringiensis for Controlling Insect Pests of Vegetable Soybean

Ouab Sarnthoy; Somchai Isichaikul


Kasetsart Journal. Natural Sciences | 2000

Monitoring Insecticide Resistance Development in Beet Armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae)

Ouab Sarnthoy; Siripan Tantakom; Somchai Isichaikul


45. Kasetsart University Annual Conference, Bangkok (Thailand), 30 Jan - 2 Feb 2007 | 2007

Ecological studies of termites and mushroom growing termites in lower mixed deciduous forest at Kanchanaburi Research Station

Sunisa Sa-uangsub; Nit Kirtibutr; Ouab Sarnthoy; Weerawan Amornsak


Archive | 2003

Belt-Transect: A sampling Device for Termite Communitite Study

Yanyong Chalermsan; Ouab Sarnthoy; Nit Kirtibutr


Archive | 2003

New Records of Two Nasutitermitinae Termites (Isoptera: Termitidae) from Hill Evergreen Forest on Khao Kitchakut National Park in Thailand

Weerawan Amornsak; Ouab Sarnthoy; Nit Kirtibutr


Archive | 1999

Population ecology on the golden birdwing, Troides aeacus in west areas, Thailand

Virat Sookeewong; Phaet Satarat; Visoot Pintobtang; Ouab Sarnthoy; Somchai Isichaikul; Nit Kirtibutr; Pitakpong Pompranee

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J. A. Litsinger

International Rice Research Institute

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