No full-text available
To read the full-text of this research,
you can request a copy directly from the author.
Development of the Orchid Weevil, Orchidophilus aterrimus (Waterhouse)
Abstract
Orchidophilus aterrimus (Waterhouse) is a weevil pest of Vanda, Dendrobium, Phalaenopsis, and other orchids in Hawaii. Development of all immature stages usually occurred within orchid pseudobulbs. Eggs were deposited into cavities made by adult feeding and hatched in an average of 11.3 days. Larval development was completed in approximately 117 days. Larvae pupated in cells within the gallery. The pupal stadium averaged 15.9 days. The entire life cycle required an average of 144 days. A 47 day preoviposition period was observed. Females laid an average of 2.4 eggs per week during their lifespan. Feeding and oviposition occurred primarily during daylight hours.
... Biology. The life history of O. aterrimus was studied by Mau (1983) in Hawaii and by Hirao et al. (2001) in the Philippines. Eggs were found to be deposited singly in holes made in stems, leaves, pseudobulbs and flowers. ...
... Eggs were found to be deposited singly in holes made in stems, leaves, pseudobulbs and flowers. Mau (1983) determined the average time needed for development at 24 ºC as 11 days for eggs, 117 for larvae and 16 for pupae, followed by a pause of several weeks before emergence of the adults. Hirao et al. (2001) observed a faster development at 28-35 ºC, with an average of 7 days for eggs, 75 for larvae and 10 for pupae. ...
... Orchidophilus aterrimus. Buchanan (1935), Fullaway (1938), Hustache (1938), Swezey (1945), Pritchard (1959), Voss (1961), O'Brien & Wibmer (1982), Mau (1983), Zimmerman (1992), May (1994), Morimoto (1994), Pakaluk (1994), Hirao et al. (2001). D. canaliculatum, D. compactum, D. crassinode, D. crystallinum, D. findleyanum, D. guerreroi, D. phalaenopsis, D. pierardii, D. spectabile, D. superbum, D. taurinum, D. victoria-reginae, Epidendrum , 1949, 1965 Notes. ...
Six species of the weevil genus Orchidophilus Buchanan are recognized: O. epidendri (Murray) comb. n. (=Acythopeus genuinus Pascoe syn. n., =Baris orchivora Blackburn syn. n., =Apotomorhinus orchidearum Kolbe syn. n.), O. aterrimus (Waterhouse), O. eburifer (Pascoe) comb. n. (=Acythopeus gilvonotatus Barber syn. n.), O. peregrinator Buchanan, O. ran Morimoto and O. insidiosus Prena sp. n. These species appear to be native to Indonesia, Malaysia, the Philippines and Singapore but are dispersed frequently with orchid cultivars by global trade. Orchidophilus aterrimus has been intercepted most frequently and now is established in several Indo-Pacific regions outside its native range. Nearly as common as, and occasionally confused with, the former is O. epidendri. Orchidophilus ran is of some significance in Japan and Korea, while O. peregrinator, O. eburifer and O. insidiosus were intercepted occasionally at scattered locations before 1970. An identification key for the six species is provided. Lectotypes are designated for Baridius aterrimus Waterhouse, Acythopeus genuinus Pascoe, Baris orchivora Blackburn and Apotomorhinus orchidearum Kolbe; a neotype is designated for Centrinus epidendri Murray.
... Biology. The life history of O. aterrimus was studied by Mau (1983) in Hawaii and by Hirao et al. (2001) in the Philippines. Eggs were found to be deposited singly in holes made in stems, leaves, pseudobulbs and flowers. ...
... nds, the Netherlands Antilles, New Caledonia, Papua New Guinea, South Africa, South Korea, Sweden and the United States (Fig. 1). Biology. The life history of O. aterrimus was studied by Mau (1983) in Hawaii and by Hirao et al. (2001) in the Philippines. Eggs were found to be deposited singly in holes made in stems, leaves, pseudobulbs and flowers. Mau (1983) determined the average time needed for development at 24 ºC as 11 days for eggs, 117 for larvae and 16 for pupae, followed by a pause of several weeks before emergence of the adults. Hirao et al. (2001) observed a faster development at 28–35 ºC, with an average of 7 days for eggs, 75 for larvae and 10 for pupae. The number of larval ins ...
Six species of the weevil genus Orchidophilus Buchanan are recognized: O. epidendri (Murray) comb. n. (=Acythopeus genuinus Pascoe syn. n., =Baris orchivora Blackburn syn. n., =Apotomorhinus orchidearum Kolbe syn. n.), O. aterri-mus (Waterhouse), O. eburifer (Pascoe) comb. n. (=Acythopeus gilvonotatus Barber syn. n.), O. peregrinator Buchanan, O. ran Morimoto and O. insidiosus Prena sp. n. These species appear to be native to Indonesia, Malaysia, the Philippines and Singapore but are dispersed frequently with orchid cultivars by global trade. Orchidophilus aterrimus has been inter-cepted most frequently and now is established in several Indo-Pacific regions outside its native range. Nearly as common as, and occasionally confused with, the former is O. epidendri. Orchidophilus ran is of some significance in Japan and Korea, while O. peregrinator, O. eburifer and O. insidiosus were intercepted occasionally at scattered locations before 1970. An identification key for the six species is provided. Lectotypes are designated for Baridius aterrimus Waterhouse, Acythopeus genuinus Pascoe, Baris orchivora Blackburn and Apotomorhinus orchidearum Kolbe; a neotype is desig-nated for Centrinus epidendri Murray.
... However, in the absence of definite records, it is removed from the faunal list of Nova Scotia., Vanda, Phalaenopsis, Renanthera, Angraecum, Saccolabium, Cymbidium, and Spathoglottis spp. (Orchidaceae) (Swezey 1945; Mau 1984). In Nova Scotia, found on a slipper orchid (Paphiopedilum sp.). ...
Seventy-nine species of weevils are newly reported in Nova Scotia and 66 species are newly reported on Prince Edward Island, increasing the known provincial weevil faunas to 244 and 92 species, respectively. Thirty-six species are recorded for the first time in the Maritime Provinces; of these, Ceutorhynchus pallidactylus (Marsham), Listronotus dietzi O'Brien, Corthylus columbianus Hopkins, and Orchidophilus aterrimus (Waterhouse) are recorded for the first time in Canada. Orchidophilus aterrimus has been collected only in exotic domesticated orchids and is not established in the wild. Fourteen species previously recorded on Cape Breton Island, Nova Scotia, are reported from the provincial mainland. Four species - Curculio sulcatulus (Casey), Ceutorhynchus squamatus LeConte, Tachyerges niger (Horn), and Ips calligraphus (Germar) - are removed from the faunal list of Nova Scotia, and three species - Temnocerus cyanellus (LeConte), Curculio nasicus (Say), and Cryphalus ruficollis ruficollis Hopkins -are removed from the faunal list of Prince Edward Island. The combined known weevil fauna of the Maritime Provinces now totals 290 species. The adequacy of collection effort is discussed and in Nova Scotia, where collection effort has been greatest, distribution patterns of selected groups of species are examined. Island faunas are discussed with respect to those of Prince Edward Island and Cape Breton Island. Regional biogeographic patterns of species are also discussed, including possible disjunct populations in Nova Scotia and species that may not have crossed the isthmus of Chignecto to colonize Nova Scotia. Attention is drawn to the long history of introduced species in the region and to ongoing introductions through an examination of the earliest records for the 60 introduced species found in the region.