James T. Troubridge's research while affiliated with Agriculture and Agri-Food Canada and other places

Publications (29)

Article
A new genus, Janzena (Erebidae), and 37 new species of Noctuoidea (Lepidoptera) are described from Florida as well as two species elevated from synonymy to species status. Bleptina biformata, Bleptina ex­tincta, Bleptina flavivena, Bleptina verticalis, Lascoria coma, Janzena pyraliformis, Sigela sordes, Sigela minuta, Sigela incisa, Sigela subincis...
Article
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A summary of all taxonomic and nomenclatural changes to the check list of the Noctuoidea of North America north of Mexico since the last update published in 2015 is provided. A total of 64 changes are listed and discussed, consisting of 26 recently published changes and additions, and an additional 38 presented herein. One stat. n., one stat. rev.,...
Article
Full-text available
A summary of all taxonomic and nomenclatural changes to the check list of the Noctuoidea of North America north of Mexico since the last update published in 2015 is provided. A total of 64 changes are listed and discussed, consisting of 26 recently published changes and additions, and an additional 38 presented herein. One stat. n., one stat. rev.,...
Book
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A definitive species list is the foundation of biodiversity and conservation work. As we deal with massive climatic changes in the Anthropocene, knowing which species make up our diverse ecosystems will be critically important if we wish to protect and restore them. The Lepidoptera, moths and butterflies, are the fourth-largest insect order in term...
Article
The former genera Oncocnemis Lederer, Apharetra Grote, Hemistilbia Barnes and Benjamin, Adita Grote, Lepipolys Guenée, Homoncocnemis Hampson, and Homohadena Grote are synonymized under Sympistis Hübner. The following are transferred from Oxycnemis Grote to Sympistis: Sympistis franclemonti (Blanchard), comb. n. [Oxycnemis franclemonti Blanchard] an...
Article
Nous révisons les espèces nord-américaines de Brachylomia Hampson, 1906 et nous décrivons quatre nouvelles espèces (B. cascadia sp. nov., B. obscurifascia sp. nov., B. pallida sp. nov. et B. sierra sp. nov.). Le genre monotypique Lomilysis Franclemont, 1937 devient synonyme de Brachylomia. Nous plaçons Epunda onychina Guenée, 1852, actuellement inc...
Article
The Nearctic members of the genus Euros Hy. Edwards, 1881 are revised to include three species, with Euros osticollis described as new. The adults and male genitalia are illustrated.
Article
The Nearctic members of the genus Euros Hy. Edwards, 1881 are revised to include three species, with Euros osticollis described as new. The adults and male genitalia are illustrated. Intorduction Euros Hy. Edwards, 1881, is a Nearctic genus that includes three species (one described here as new) with a distribution apparently limited to western Ore...
Article
Three new species of Lithophane Hübner are described: Lithophane lanei and L. scottae from eastern Ontario, Canada, and L. boogeri from the high desert of Oregon, U.S.A. Adults and genitalia are illustrated.
Article
Alastria gen. nov. is described, and Callierges tropicalis Schaus is transferred to the genus. Alastria chico sp. nov. is described from western North America and Alastria macho sp. nov. is described from Costa Rica. We provide illustrations of the adults and genitalia of all three species, as well as the male genitalia of two related genera, Nedra...
Article
The species of the genus Hyppa Duponchel are revised and a new species is described. Adults of all species are illustrated, as are male and female genitalia where known. A neotype is designated for Hadena ancocisconensis Morrison. The concept of Hyppa contrasta is modified from that of a southern Appalachian endemic to that of a common transcontine...
Article
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Blackheaded fireworm (Rhopobota naevana (Hbn.)) mating can be disrupted by pheromone components released from spiral polyvinyl chloride (PVC) dispensers in large field plots on cranberry (Vaccinium macrocarpon (Aiton) (Ericaceae)) farms. The main pheromone component ((Z)-11-tetradecen-1-ol acetate (Z11-14:Ac)) or a blend similar to natural pheromon...
Article
The North American species of the genus Cosmia Ochsenheimer are reviewed and four species are recognized: Cosmia calami (Harvey), C. praeacuta (Smith) comb. nov., C. epipaschia (Grote) comb. nov., and C. elisae sp. nov. Achytonix McDunnough syn. nov. is synonymized with Cosmia subgenus Calymnia Hübner. Namangana praeacuta nigramaculata Barnes et Be...
Article
The species of the Lithophane lepida Grote complex are reviewed and two new species of the genus Lithophane Hübner from western North America are described. Adults of all species are illustrated, as well as male and female genitalia (where known) and larva of L. lepida and Lithophane itata (Smith). A key to species of the L. lepida group is provide...
Article
The name Neoligiagen.nov. is proposed for the “Oligia” semicana (Walker) species group in North America and 12 species, N. rubirena sp.nov., N. pagosa sp.nov., N. hardwicki sp.nov., N. inermis sp.nov., N. invenusta sp.nov., N. albirena sp.nov., N. lancea sp.nov., N. elephas sp.nov., N. lillooet sp.nov., N. surdirena sp.nov., N. canadensis sp.nov.,...
Article
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In 1997, larvae of the cutworm moth, Ochropleura implecta Lafontaine, caused economic damage to cranberries ( Vaccinium macrocarpon Aiton; Ericaceae) on several neighbouring farms in Richmond (49° 10′N, 123°07′W), British Columbia, Canada. This is the first report of O. implecta on cranberries. Published host records for O. implecta include willow...
Article
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Fourteen species of parasitoids (13 hymenopterans, 1 dipteran) were reared from larvae or pupae of the obliquebanded leafroller, Choristoneura rosaceana (Harris), collected from commercial raspberry fields in the Fraser Valley, British Columbia, Canada, over 3 years. Levels of parasitism ranged from 5 to 15%. Among these 14 species, five represent...
Article
The nearctic members of the genus Entephria are revised to include 11 species. Entephria separata, E. lynda, and E. beringiana are described as new; E. nigrescens (Hulst) is placed as a synonym of E. multivagata (Hulst); E. polata punctipes (Curtis), E. polata bradorata (Munroe) and E. polata kidluitata (Munroe) are elevated to species rank; E. pol...
Article
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We assessed the potential of pheromone-mediated mating disruption to control the black headed fire worm of cranberries, Rhopobota naevana (Hubner). In experimental plots (30 by 30 m) on cranberry farms, spiral polyvinyl chloride pheromone dispensers released either the main component of fire worm pheromone, (Z)-ll-tetradecen-l-ol acetate, or a 3- c...
Article
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In field studies of pheromone-mediated mating disruption of lepidopteran pests, there are several ways to determine if mate location has been disrupted. One indirect method is to count the number of males caught in sticky traps baited with synthetic pheromone. A reduced catch in pheromone-treated plots relative to control plots shows that males wer...
Article
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This study was conducted to assess the reproductive potential of first- and second-generation Rhopobota naevana (Hübner) females collected from a commercial cranberry farm and reared on field-collected foliage under controlled conditions. Between 90 and 95% of eggs laid by first-generation females hatched within 2 wk of oviposition, whereas most (8...
Article
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The North American members of the genus Operophtera Hübner (Lepidoptera: Geometridae) are revised to include three species: O. brumata (L.), O. bruceata (Hulst), and O. danbyi (Hulst). Operophtera occidentalis (Hulst) is now treated as a subspecies of O. bruceata. All species are illustrated and characters to distinguish the species are given. The...
Article
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Two commercial pheromone blends are available for monitoring the blackheaded fireworm of cranberries, Rhopobota naevana (Hubner). Results from the 1st yr of a 2-yr field test showed that the three-component blend (69.2% (Z)-ll-tetradecen-l-ol acetate, 23.1% (Z)-ll-tetradecen-l-ol, and 7.7% (Z)-9-dodecen-l-ol acetate, at a total loading of 1 mg per...
Article
Full-text available
The palearctic cutworm, Apamea ophiogramma (Esper), is reported from North America for the first time. Four specimens were collected at a light trap in Langley, British Columbia, in 1989, 19 in 1990, and 38 in 1991. Descriptions of wing markings and genitalic characters that distinguish A. ophiogramma from the nearctic Oligia fractilinea (Grt.) are...
Article
The Montane Cordillera Ecozone of British Columbia and southwestern Alberta supports a diverse fauna with over 2,000 species of butterflies and moths (Order Lepidoptera) recorded to date. By far the best known group of Lepidoptera is the butterflies with 173 species in the Ecozone; the approximately 15,000 species locations of butterflies in the Ec...
Article
Arctia brachyptera sp. n. and Dodia verticalis sp. n. are described from the Yukon Territory, Canada, and Arctia caja opulenta is elevated to species rank. Illustrations of the adults and female genitalia are provided.

Citations

... Geographical distribution and phenology. This is a widespread species, occurring from the Florida Keys, Florida, USA to the Antilles and in Central America (Schaus 1921(Schaus , 1940Draudt 1924;Adams 2001;Schmidt et al. 2018). The data compiled here extend the species distribution to South America, as far south as the Rio Grande do Sul state, Brazil (Fig. 42). ...
... Treating the two genera as synonyms would also mean having to synonymize the genus Mocis Hübner, 1823(Zahiri et al. 2012: 4070. Protodeltote Ueda, 1984 was upgraded from status as subgenus of Deltote Reichenbach, 1817 to full generic status bySchmidt et al. (2018). This results in the combination Protodeltote pygarga(Hufnagel, 1766). ...
... Crambini account for 40% of the described crambine species and represent the bulk of crambine diversity in temperate areas (e.g. 80% of the Crambinae fauna in Canada) (Pohl et al., 2018). Our analysis, including part of the diversity of the Crambini (25 of the 61 described genera), recovered the Holarctic genera Platytes, Agriphila and Catoptria as the earliest diverging lineages of Crambini, suggesting that diversification of the tribe took place there. ...
... The functions of associated faunas and their interactions with biological control agents are important concepts in determining efficient farming landscapes and pest management strategies. In the early 1980s, winter moth (Operopthera brumata [L.]) was detected in Richmond, on the Lower Mainland of British Columbia where it became an important pest of blueberry (Vaccinium corymbosum [L.]), and birch (Betula spp.) (Fitzpatrick et al., 1991). The tachinid parasitoid Cyzenis albicans Fall ! ...
... Gnaphosidae comprise 2134 described species in 118 genera (Platnick 2013). They have a worldwide distribution with ~250 species in North America (Bennett et al. 2006, Guarisco and Kinman 1990, Ubick et al. 2005. Gnaphosids are active, wandering predators that capture prey while moving through litter (Guarisco and Kinman 1990). ...
... Interestingly, oncocnemidines and agaristines share an uncommon type of thoracico-abdominal union in which lateral invaginations of the A1 tergum, near where it joins to the thorax, extend so deep into the abdomen that they almost meet and form a hole passing laterally through the abdomensuch that light passes through the diaphanous septum separating the two invaginations (Troubridge 2008, J.D.L. unpublished data). As Troubridge (2008) mentioned, this condition is also found in unrelated genera like Annaphila Grote, 1873 (Stiriinae). ...
... Oeneis excubitor Troubridge, Philip, Scott & J. Shepard, 1982 has been treated as a subspecies of O. alpina Kurentsov, 1970 by most subsequent authors (Scott 1986; Lafontaine & Wood 1997; Layberry et al. 1998; Warren et al. 2015). Oeneis philipi has apparently close relatives in the northeastern Palaearctic, sometimes called O. rosovi Kurentsov, 1970, a name that has been applied as a senior synonym of O. philipi (Lafontaine & Wood 1997; Lafontaine & Troubridge 1998; Layberry et al. 1998). However, as noted by Lukhtanov (1989), the two syntypes of O. rosovi appear to represent two different species, so until a lectotype is designated, the application of this name to any populations remains problematical (Pelham 2008). ...
... Adults fly in June and July. Apamea ophiogramma was first reported in 1989 from British Columbia, Canada (Troubridge et al., 1992) and has since been found in New York, Vermont, Quebec, and New Brunswick (Mikkola and Lafontaine, 1994). Larvae feed in stems of Phragmites, Phalaris, and Glyceria species, overwinter in the soil, and complete development in the stems in spring. ...
... This wasp has a wide Nearctic distribution (Fernández-Triana and Huber, 2010) and is native to the Edmonton area. It has been recorded from larval hosts in the moth family Tortricidae, including Choristoneura rosaceana (Harris), Platynota idaeusalis (Walker), and Endopiza viteana Clemens (all Lepidoptera: Tortricidae) (Seaman et al., 1990;Biddinger et al., 1994;Li et al., 1999;Cossentine et al., 2004). In British Columbia, A. polychrosidis is bivoltine and overwinters in first or second instar larvae of C. rosaceana with a second generation in the summer (Cossentine et al., 2004). ...
... Other species (a tachinid fly and several parasitic wasps) have been reared from BHF larvae . It has been noted that spiders will prey on BHF moths in field cages [Fitzpatrick and Troubridge 1993] and on certain larvae of known cranberry pests [ Bardwell and Averill 1996]. T. minutum has shown preferences for egg masses of spotted fireworm (Choristoneura parallela) based on plant host, egg number, and egg mass density [Stuart and Polavarapu 2000]. ...