ON CONIFEROPHAGOUS SPECIES OF CHORISTONEURA (LEPIDOPTERA: TORTRICIDAE) IN NORTH AMERICA: III. SOME CHARACTERS OF IMMATURE FORMS HELPFUL IN THE IDENTIFICATION OF SPECIES

1967 ◽  
Vol 99 (5) ◽  
pp. 464-481 ◽  
Author(s):  
G. T. Harvey ◽  
G. Stehr
Keyword(s):  
North America ◽  
Taxonomic Group ◽  
Single Individual ◽  
Interspecific Relationships ◽  
Identification Of Species ◽  
Colour Morphs

AbstractPigmentation of heads and prothoracic shields of last-instar larvae, colour of pupae, and frequencies of haemolymph colour morphs in fresh pupae are used to support the taxonomic differentiation of the following members of the genus Choristoneura: fumiferana, biennis, orae, occidentalis, viridis, subretiniana, pinus pinus, p. maritima, and lambertiana. These characters are statistical in nature and not competent to relate a single individual unequivocally to a taxonomic group; nevertheless, a key is developed to assist identification of populations on the basis of the characters described. Interspecific relationships within the genus are considered.

Nutlet Morphology and the Use of SEMs to Determine Characteristics for Identification of Species in the Genus Cryptantha Lehm. ex G. Don Section Oreocarya (E. Greene) Payson

2000 ◽  
Vol 8 (6) ◽  
pp. 34-35
Author(s):  
Willow B. Murphy ◽  
Walter A. Kelley ◽  
Richard C. Dujay
Keyword(s):  
North America ◽  
Flower Morphology ◽  
Western North America ◽  
Morphological Variations ◽  
The Past ◽  
Specific Differentiation ◽  
The Family ◽  
Identification Of Species ◽  
Vegetative Characters

The genus Cryptantha Lehm ex G. Don section Oreocarya (E. Greene) Payson of the family Boraginaceae presents some problems to botanists, both professional and amateur, in the keying and identification of species. The genus contains approximately 150 species, the section about 60 perennial and biennial herbs located generally in western North America. Identification has presented some taxonomic difficulty due to the variability and lack of distinctive vegetative characters. Botanists have turned to the nutlet (fruit) and flower morphology to aid in identification for precise specific differentiation. In the past, 10X magnification and a decent botanical illustrator were required to provide the illustrations necessary to assist in this identification. We are in the process of collecting micrographs of nutlets (dorsal, sagital, and ventral views) and developing a webpage containing these micrographs along with descriptions of their morphological variations.

scholarly journals Notes on the Genus Rhipicephalus, with the Description of New Species, and the Consideration of some Species hitherto described

Parasitology ◽  
1912 ◽  
Vol 5 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Cecil Warburton
Keyword(s):  
New Species ◽  
General Type ◽  
The Other ◽  
Single Individual ◽  
Other Hand ◽  
Identification Of Species ◽  
The One ◽  
Range Of Variation ◽  
A New Species

The identification of species of Rhipicephalus is likely to give more trouble than is the case with any other genus of Ixodidae, for while, on the one hand, there are few species which depart greatly from the general type, on the other hand the range of variation within the species is extremely great. In no genus is it so dangerous to describe a new species from a single individual, especially if the specimen be a female.

scholarly journals A PRELIMINARY GROUPING OF THE DESCRIBED SPECIES OF SAPROMYZA OF NORTH AMERICA, WITH ONE NEW SPECIES

1892 ◽  
Vol 24 (12) ◽  
pp. 301-304
Author(s):  
C. H. Tyler Townsend
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Identification Of Species ◽  
One New Species

The following is a purely provisional grouping of the described North American species of Sapromyza, made up from the descriptions alone. As such, it is offered for publication. The practical use of this kind of work does not need pointing out. It greatly facilitates the identification of species where the descriptions are scattered through various works. In the determination of the single new species described at the end of this paper, it was necessary to consult each description separately. It required but little additional labour to tabulate the leading points in the descriptions, thus relieving later students from the necessity of going through the same laborous process.

Amok

1994 ◽  
Vol 165 (5) ◽  
pp. 685-689 ◽  
Author(s):  
Yan Kon
Keyword(s):  
British Journal ◽  
North America ◽  
Diagnostic Criteria ◽  
Psychiatric Diagnosis ◽  
New Guinea ◽  
Mass Murder ◽  
Single Individual

BackgroundAmok is reviewed from a historical standpoint, tracing how it has changed from the Hindu states of India where it was a war tactic to the sudden incomprehensible violence and mass murder by a single individual associated with the syndrome today.MethodA typical amok attack is described and the criteria for amok discussed. Amok in Malaysia, New Guinea, Laos, North America and other countries are presented. The possible motives for such violent killings and a possible psychiatric diagnosis in relation to contemporary diagnostic criteria is discussed.ConclusionClassification of amok remains unresolved. The reason for its frequency in and around Malaysia remains unknown.British Journal of Psychiatry (1994),165, 685–689

New taxa of Rhagidiidae (Acari: Prostigmata) from North America. Part IIIA. Genus Rhagidia Thorell: the gigas species-group

1995 ◽  
Vol 73 (7) ◽  
pp. 1247-1258 ◽  
Author(s):  
Miloslav Zacharda
Keyword(s):  
New Species ◽  
North America ◽  
New Taxa ◽  
Species Group ◽  
Interspecific Relationships ◽  
Two New Species ◽  
Species Groups ◽  
Three New Species ◽  
Nearctic Region

Three new species of rhagidiid mites, Rhagidia breviseta, n.sp., R. parvilobata n.sp., and R. distisolenidiata n.sp., from the Nearctic region are described. Their interspecific relationships are discussed and two new species-groups, gigas and quadrisolenidiata, are defined.

scholarly journals Distribution of multilocus genotypes ofEscherichia coliwithin and between host families

1984 ◽  
Vol 92 (3) ◽  
pp. 377-384 ◽  
Author(s):  
Dominique A. Caugant ◽  
B. R. Levin ◽  
R. K. Selander
Keyword(s):  
Escherichia Coli ◽  
New York ◽  
North America ◽  
Multilocus Genotype ◽  
Single Individual ◽  
Multilocus Genotypes ◽  
Electrophoretic Mobilities ◽  
Host Families

SummaryIsolates from the intestinalEscherichia coliflora of 28 members of five families (including parents, children, and household pets) in Amherst, Massachusetts, and Rochester, New York, were characterized by the electrophoretic mobilities of 12 enzymes to estimate the extent of sharing of strains among associated and unassociated hosts. Among the 655 isolates examined, 60 different combinations of electromorphs (electrophoretic types or ETs), each representing a distinctive multilocus genotype, were identified, of which 85% were recovered from only a single individual. On average, 11 % of the ETs isolated from the same family were shared by two or more members; 4·9% of ETs were shared among members of unassociated families living in the same city; and only 2% were shared by families in different cities. All three ETs that were recovered from multiple hosts in the present study are widespread clones that have been isolated from many other host individuals in North America and Sweden.

Mississippian polyplacophoran (Mollusca) from Utah

1989 ◽  
Vol 63 (2) ◽  
pp. 252-252 ◽  
Author(s):  
R. D. Hoare
Keyword(s):  
North America ◽  
Taxonomic Group ◽  
Geologic History ◽  
Lower Carboniferous ◽  
History Of

Reports of Mississippian polyplacophorans from North America are rare. To date only three species, Gryphochiton parvus (Stevens, 1858) and G. elevatus (Kues, 1978), from the Salem Limestone in Indiana, and Elachychiton juxtaterminus Hoare and Mapes, 1985, from the Imo Formation in Arkansas, have been recognized (Smith and Hoare, 1987). Lobarochiton anomalus (Rowley, 1908), from the Louisiana Limestone in Missouri, is now believed to be Devonian in age. European reports of Lower Carboniferous polyplacophorans are much more common, at least 29 species (Hoare and Smith, 1987). The location of any specimen in the Mississippian of North America becomes significant in filling out the geologic history of this taxonomic group.

Two new species of the genus Rhyacophila Pictet (Trichoptera: Rhyacophilidae) from the Indian Himalayas

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 309-312
Author(s):  
MALKIAT S. SAINI ◽  
LAKHWINDER K.
Keyword(s):  
New Species ◽  
North America ◽  
Large Family ◽  
Oriental Region ◽  
The Family ◽  
Two New Species ◽  
Identification Of Species ◽  
Indian Himalayas

Rhyacophilidae Stephens, 1836, is a relatively large family revised by Schmid (1970). The family is predominantly north temperate, found in North America, Europe and Asia (Holzenthal et. al. 2007). The genus Rhyacophila contains 801 species globally; among these, 375 species have been recorded from the Oriental Region and 148 species occur in India (Morse, 2012). For the identification of species the works by Armitage & Arefina (2003), Kimmins (1952, 1953, 1964), Kiss (2003, 2011a, 2011b), Malicky (1995a, 1995b, 1997), Malicky & Chantaramongkol (1993), Malicky & Prommi (2006), Malicky & Sun (2002), Martynov (1927a, 1927b, 1930, 1935), Morton (1900), Schmid (1959, 1970) and Sun & Yang (1998) were used.

THE GENUS ILYBIUS ER. IN NORTH AMERICA (COLEOPTERA, DYTISCIDAE)

1939 ◽  
Vol 71 (9) ◽  
pp. 192-199 ◽  
Author(s):  
J. B. Wallis
Keyword(s):  
North America ◽  
Correct Identification ◽  
Identification Of Species

In spite of Mr. H. C. Fall's paper on Ilybius in the “Entomological News”, XXXVIII, 1927, much confusion as to the correct identification of species in that genus is still apparent. Nor is this to be wondered at. One species frequently superficially resembles another so closely that only careful discrimination will make certain what is in hand. Further, to my knowledge, no key by which females can be determined has been devised. This latter deficiency I have endeavoured to remedy.

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