TWO PANDEMIS SPECIES INTRODUCED INTO BRITISH COLUMBIA, WITH A COMPARISON OF NATIVE NORTH AMERICAN SPECIES (LEPIDOPTERA: TORTRICIDAE)

1980 ◽  
Vol 112 (6) ◽  
pp. 549-554 ◽  
Author(s):  
Akira Mutuura

AbstractTwo Pandemis species, introduced into British Columbia, are discussed: P. cerasana (Hübner) found in 1965 and P. heparana (Denis & Schiffermüller) found in 1978. They are compared with the native North American Pandemis pyrusana Kearfott and P. limitata (Robinson).

1964 ◽  
Vol 21 (5) ◽  
pp. 933-939 ◽  
Author(s):  
Richard H. Rosenblatt

A new species, Pholis clemensi, referred to the family Pholidae, is named and described from 12 specimens taken in southern British Columbia waters and the Strait of Juan de Fuca. Pholis clemensi is compared with other members of the genus, and a key is given to the North American species.


1932 ◽  
Vol 64 (11) ◽  
pp. 247-251 ◽  
Author(s):  
Herbert H. Ross

This species has apparently been introduced in recent years and become established as a pest of the common native alder (Alnus rubra) on the west coast of Washington and British Columbia, particularly in the lower part of the Fraser River Valley. The earliest specimens I have at hand are a series of 15 females taken at White Rock, B. C., June 28, 1929, collected by Mr. G. Beall.


1980 ◽  
Vol 112 (5) ◽  
pp. 511-514 ◽  
Author(s):  
Akira Mutuura

AbstractEpiblema (Notocelia) cynosbatella (Linnaeus), introduced into British Columbia in 1978, is discussed and compared with the native North American Epiblema illotana (Walsingham).


1984 ◽  
Vol 62 (2) ◽  
pp. 325-335 ◽  
Author(s):  
James E. Eckenwalder

Five of six possible hybrid combinations of the two native North American species of Populus sect. Aigeiros Duby with the three native species of sect. Tacamahaca Spach have been found in nature. Putative hybrids occur wherever species of the two sections are sympatric and sometimes even beyond the range of one or both parents. Parents of the sixth possible combination are not, however, sympatric and this explains the apparent absence of the corresponding hybrid. Although the five hybrids can easily be recognized as a group, each parentage yields hybrids of unique morphology, all of which have previously been provided with binomials. Variability within each hybrid reflects variation in its parents. These hybrids are morphologically intermediate between their putative parents and have an additive chromatographic profile combining leaf flavonoids of each pair. Trees of P. × generosa (P. deltoides × P. trichocarpa) and P. × jackii (P. deltoides × P. balsamifera) from natural populations closely resemble artificial hybrids between their presumed parents. Three natural hybrids, P. × acuminata (P. deltoides × P. anguslifolia), P. × jackii, and P. × parryi (P. fremontii × P. trichocarpa), are all cultivated as shade trees. Keys distinguish the five hybrids from each other and from their parents; each hybrid is described; its nomenclature is clarified; and its range is mapped in relation to those of its parents.


1953 ◽  
Vol 85 (8) ◽  
pp. 311-312 ◽  
Author(s):  
C. H. Craig

Franklin (1913) (p. 448) stated, “There is not vet a single new world account of a Psithyrus having been found in a Bombus nest”. Since then, of the seven North American species, four have been reported found in nests of Bombus spp. by Sladen (1915), Frison (1916, 1921, 1926), Plath (1934), Linsley (1944), and Leech (1947). Of these records only two are from Canada, both being from British Columbia. Sladen (1915) reported finding the well-preserved body of a female of Psithyrus insularis (Sm.) and several cocoons, from one of which he extracted a male of P. insularis, in a nest containing an old queen and several workers of Bombus flavifrons Cress. Leech (1947) found a P. insularis female in a nest containing several workers of Bombus mixtus Cress., and concluded that the iniquiline had supplanted the mixtus queen.


1963 ◽  
Vol 95 (11) ◽  
pp. 1202-1210 ◽  
Author(s):  
G. R. Hopping

AbstractNorth American Ips of Group II (Hopping, 196îb) are I. emarginatus (Leconre) and I. knattsi Swaine. They are the only Ips having the third declivital spine emarginate ar the tip. They breed in various species of pine. The distribution of I. emarginatus is from southern British Columbia to California and eastward to Montana. I. knausi is found in Colorado, New Mexico and Arizona. A key to the species is given. I. plastographus (Leconte) is the sole representative of Group III. It is the only four-spined Ips with the sutures of the autennal club strongly angled at the middle. I. plastographus breeds in species of pine. It occurs from southern British Columbia southward in the western United States and through Mexico into Guatemala. Hosts and more detailed distributions are given for species in Groups IT and III.


1966 ◽  
Vol 98 (7) ◽  
pp. 760-768 ◽  
Author(s):  
D. F. Hardwick

AbstractThe westermanni group of the genus Euxoa is defined, and a key to the eleven constituent North American species is presented. Two species are described as new: chimoensis from Fort Chimo, Quebec, and luteomaculata from montane areas of southern Alberta, southern British Columbia, and northern Washington.


1979 ◽  
Vol 111 (8) ◽  
pp. 967-969
Author(s):  
Miktat Doǧanlar

AbstractSwammerdami beirnei n. sp. (Lepidoptera: Yponomeutidae) is described from Vancouver district, British Columbia, and distinguished from the European species, S. pyrella (De Villers) and the North American species S. heroldella Hübner = syn. S. castaneae Busck, also = syn. S. cuprescens Braun by Duckworth (1965). Some biological aspects of the species are discussed.


2020 ◽  
Vol 40 (3) ◽  
pp. 269-276
Author(s):  
Rodney M Feldmann ◽  
Carrie E Schweitzer ◽  
James W Haggart

Abstract The description of a new species of an erymid lobster, Stenodactylina beardi, from the Upper Cretaceous Haslam Formation of the Nanaimo Group on Vancouver Island, British Columbia, Canada, brings to fifteen the number of Erymidae in North America. The species are arrayed within five genera based upon configuration of carapace groove morphology, resulting in two new combinations, Stenodactylina bordenensis (Copeland, 1960) and S. foersteri (Feldmann, 1979). The new species exhibits for the first time a male pleopod and accessory structures within Erymoidea. We also provide a list of the North American species of Erymoidea.


1971 ◽  
Vol 49 (8) ◽  
pp. 1379-1388 ◽  
Author(s):  
Theodore Mosquin

Variation patterns and interpopulational relationships were examined in Linum lewisii Pursh and L. pratense (Norton) Small, the two native North American blue-flowered flax species. The two principal evolutionary trends in the North American populations have been toward self-pollination and an annual life habit. A third trend, toward greater outcrossing, is considered probable. Hybridizations between and within species indicate that evolution has occurred mainly by the accumulation of small genic changes in geographically isolated populations. The buildup of sterility barriers between populations regardless of species has not been extensive and in no case do hybrids have less than 30% good pollen. In general, morphological evolution has occurred independently of the buildup of sterility barriers. A new taxonomic combination, L. lewisii ssp. lepagei (Boivin) Mosquin, is adopted.


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