CONTRIBUTIONS TO THE MORPHOLOGY OF THE LARVAL ELATERIDAE (COLEOPTERA). NO. 2: AGRIOTES LIMOSUS LECONTE

1941 ◽  
Vol 73 (4) ◽  
pp. 57-62 ◽  
Author(s):  
Robert Glen
Keyword(s):  
North American ◽  
Economic Importance ◽  
North American Species ◽  
Taxonomic Significance ◽  
The Third

Agriotes limosus LeConte is the third North American species of Agriotes Eschscholtz for which the larva definitely is known. It is a woodland form and, therefore, of much less economic importance than the meadow-inhabiting species such as Agriotes mancus Say, the wheat wireworm, but it is of greater taxonomic significance since it lacks the characters that have been universally regarded as definitive of Agriotes larvae.

A Field Key to the North American Species of Hylobius (Curculionidae)

1961 ◽  
Vol 93 (7) ◽  
pp. 501-502 ◽  
Author(s):  
R. J. Finnegan
Keyword(s):  
United States ◽  
North American ◽  
Economic Importance ◽  
North American Species ◽  
Eastern United States ◽  
Eastern Canada ◽  
The North

There are five known North American species in the genus Hylobius; H. pales (Hbst.), H. congener Dalla Torre, H. pinicola (Couper), H. radicis Buch., and H. warreni Wood. In recent years four of these species have increased considerably in economic importance in central and eastern Canada and the eastern United States; H. pales and H. radicis attacking pines and H. pinicola and H. warreni attacking spruces and pines. H. congener occurs only in small numbers and little is known about its ecology. It is important, therefore, to be able to separate these species readily in the field.

scholarly journals First North American species of the European genus Archaemegaptilus from the Upper Carboniferous Pottsville Formation of northern Alabama (Palaeodictyoptera: Archaemegaptilidae)

2018 ◽  
pp. 1-7
Author(s):  
Roy J. Beckemeyer ◽  
Michael S. Engel
Keyword(s):  
New Species ◽  
North American ◽  
Hind Wing ◽  
North American Species ◽  
Valid Species ◽  
Upper Carboniferous ◽  
The Third ◽  
The Family

A new palaeodictyopteran (Palaeodictyopterida: Palaeodictyoptera) taxon is described based on a nearly complete hind wing found in the Pottsville Formation (Upper Carboniferous) of Bibb County, Alabama.  Archaemegaptilus blakelyi Beckemeyer & Engel, new species, is the sixth insect genus and species described from the Pottsville of Alabama and the second palaeodictyopteran from those deposits.  It is the third valid species assigned to the family Archaemegaptilidae.  Previously known species are A. kiefferi Meunier, from the Commentry of France and A. schloesseri Brauckmann et al., from the Hagen-Vorhalle of Germany.

The North American Species of the Family Opomyzidae (Diptera: Acalypterae)

1961 ◽  
Vol 93 (7) ◽  
pp. 503-522 ◽  
Author(s):  
J. R. Vockeroth
Keyword(s):  
North America ◽  
North American ◽  
Economic Importance ◽  
North American Species ◽  
The North ◽  
The Family

The family Opomyzidae is composed of small (2.0 mm.-4.4 mm.), slender, usually brown or reddish flies; the wings have at least an apical spot and are usually more heavily marked. Several species of the genus Geomyza have the wings reduced and are nearly flightless. The few species whose larvae are known feed in grass stems. Some are of minor economic importance in Europe but none have been so reported in North America.

A review of the taxonomy of five Ontario genera of freshwater cyclopoid Copepoda (Crustacea)

1990 ◽  
Vol 68 (12) ◽  
pp. 2594-2604 ◽  
Author(s):  
B. H. Dussart ◽  
C. H. Fernando
Keyword(s):  
North America ◽  
North American ◽  
North American Species ◽  
Cyclopoid Copepod ◽  
Mature Adults ◽  
The Third ◽  
Considerable Confusion ◽  
The Status ◽  
Variable Species ◽  
Provisional Identification

Examination of material of five cyclopoid copepod genera found in Ontario fresh waters and a comparison with species of these genera from other parts of the world closely related to Ontario species has given some very interesting results. The widespread Ectocyclops phaleratus was the species previously recorded from Ontario. However, the Ontario material fits the description of E. polyspinosus Harada, 1931, known from Taiwan. There is considerable confusion in the nomenclature of North American species of Eucyclops. In Ontario Eucyclops serrulatus is found. This widespread and variable species needs revision on the basis of worldwide material. Hence, only a provisional identification can be made now. The species previously called E. speratus in Ontario is a hitherto underscribed species, E. neomacruroides, closely related to, but we think distinct from, E. macruroides and E. speratus. The third species is Eucyclops macruroides denticulatus and the fourth is the very distinctive E. prionophorus. In the genus Tropocyclops, besides the widely occurring Tropocyclops prasinus prasinus, T. extensus was found. This latter species has been consistently identified as T. prasinus mexicanus since 1959. Four species of the genus Acanthocyclops occur in Ontario. Acanthocyclops robustus is very common; A. vernalis is rare and so are A. venustoides and A. carolinianus. We are unable to resolve the status of A. venustoides bispinosus, as only late copepodid stages of this species, and no mature adults, are available. Mesocyclops americanus, long called M. leuckarti, is now a well-documented species, much rarer than the somewhat atypical (for the genus) M. edax, well known in North America. Our proposed designations for North American species are summarized. There is a need to collect material year round from all available biotopes to document the species composition of Ontario Copepoda. Our work is also a first step in clarifying the status of North American Copepoda, comparing material from North America and elsewhere.

A REVIEW OF THE NORTH AMERICAN SPECIES OF LINNAEMYA SENS. LAT. (DIPTERA, TACHINIDAE)

1944 ◽  
Vol 76 (10) ◽  
pp. 193-206 ◽  
Author(s):  
A. R. Brooks
Keyword(s):  
North American ◽  
Apical Cell ◽  
Antennal Segment ◽  
North American Species ◽  
The Third ◽  
The North ◽  
Wing Tip

The name Linnaemya has been used in America and to a lesser extent in Europe for a collection of rather distinct elements linked together by the following characters:Large robust forms, 8-15 mm. long; eyes densely haired; antennae large, the third segment truncate at the tip; second aristal segment somewhat elongate; palpi reduced in length, as long as the second antennal segment or reduced to mere papillae; epistoma strongly warped forward, the antennal and oral margin axes about the same length; bend of the fourth vein with a strong appendage, the apical cell open far before the wing tip; abdomen stout, bearing at least one pair of discal bristles on the intermediate segments.

The North American Species in Groups II and III of Ips De Geer (Coleoptera: Scolytidae)

1963 ◽  
Vol 95 (11) ◽  
pp. 1202-1210 ◽  
Author(s):  
G. R. Hopping
Keyword(s):  
United States ◽  
British Columbia ◽  
New Mexico ◽  
North American ◽  
North American Species ◽  
Western United States ◽  
Group Iii ◽  
The Third ◽  
The North ◽  
Group Ii

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.

The North American Species in Group VI of Ips De Geer (Coleoptera: Scolytidae)

1965 ◽  
Vol 97 (5) ◽  
pp. 533-541 ◽  
Author(s):  
G. R. Hopping
Keyword(s):  
North American ◽  
North American Species ◽  
The Other ◽  
Group Vi ◽  
The Third ◽  
The North

AbstractGroup VI of North American Ips contains I. perturbatus (Eichhoff), I. hunteri Swaine, I. utahensis Wood and I. woodi Thatcher. A key and descriptions of species are given. Members of this group have the third declivital spine capitate with the tip conical and acute. The front of the head is evenly convex except in females of I. utahensis which have the lower part of the frons faintly elevated. I. woodi breeds in pine while the other three species breed in spruce.

Sign in / Sign up

Export Citation Format

Share Document