A REVISION OF THE NORTH AMERICAN SPECIES OF EANUS

1930 ◽  
Vol 62 (7) ◽  
pp. 161-166 ◽  
Author(s):  
W. J. Brown
Keyword(s):  
North American ◽  
North American Species ◽  
Simple Type ◽  
Lateral Aspect ◽  
Apical Portion ◽  
Strongly Convex ◽  
The North

This genus has been considered synonymous with Ludius Esch. but seems distinct by the following characters: form usually robust and strongly convex; front moderately convex, not margined; prothorax wider than long; elytrai striae moderately impressed at base, very feeble or obsolete elsewhere; prosternal lobe rather short; the prosternal process in lateral aspect very strongly arcuate between the coxae and with the apical portion strongly oblique; the prosternal sutures almost straight; coxal plates narrow, more or less narrowed externally; tarsi filiform, the claws simple. Type Limonius estriatus Lec.

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

1965 ◽  
Vol 97 (2) ◽  
pp. 193-198 ◽  
Author(s):  
G. R. Hopping
Keyword(s):  
United States ◽  
New Species ◽  
North American ◽  
North American Species ◽  
The North ◽  
Northern United States

AbstractGroup VII of North American Ips contains I. thomasi, new species, I. borealis Swaine and I. swainei R. Hopping. They are less than 4.0 mm. long and females have the front of the head or at least the vertex smooth and shining, impunctate, or with very fine sparse punctures; males are more coarsely granulate-punctate on the frons. The species are described and a key is given. All breed in Picea in Canada and northern United States.

Synopsis of the North American Species of Xylaria and Poronia (Continued)

1887 ◽  
Vol 3 (10) ◽  
pp. 109 ◽  
Author(s):  
J. B. Ellis ◽  
B. M. Everhart
Keyword(s):  
North American ◽  
North American Species ◽  
The North

A SYNOPSIS OF THE NORTH AMERICAN SPECIES OF SYNDIPNUS (HYMEN., ICHNEUMONIDAE)

1940 ◽  
Vol 72 (7) ◽  
pp. 135-145 ◽  
Author(s):  
G. Stuart Walley
Keyword(s):  
United States ◽  
North American ◽  
The United States ◽  
North American Species ◽  
National Museum ◽  
United States National Museum ◽  
The North

As noted below the two North American species described in Syndipnus by workers appear to belong in other genrra. In Europe the gunus is represented by nearly a score of species and has been reviewed in recent years by two writers (1, 2). North American collections contain very few representatives of the genus; after combining the material in the National Collection with that from the United States National Museum, the latter kindly loaned to me by Mr. R. A. Cushman, only thirty-seven specimens are available for study.

scholarly journals THE NORTH AMERICAN SPECIES OF MAMESTRA, Ochs.

1881 ◽  
Vol 13 (6) ◽  
pp. 126-130
Author(s):  
A. R. Grote
Keyword(s):  
North American ◽  
North American Species ◽  
The North

The species of this genus have hairy eyes, unarmed tibiæ and a tufted thorax. The dorsum of the abdomen is more or less tufted, but in some species the tuftings are not noticeable. Several species which seem to me to belong to Graphiphora (Taeniocanpa) have been referred to this genus ; among these I may mention orobia of Harvey, modesta, incincta and thecata of Morrison, and the species described by me as rufula and puerilis.

The North American Allies of Hylobius piceus (De Geer) (Coleoptera: Curculionidae)

1957 ◽  
Vol 89 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Stephen L. Wood
Keyword(s):  
North American ◽  
Distinct Species ◽  
Morphological Characters ◽  
North American Species ◽  
Winged Form ◽  
The North ◽  
The Status ◽  
Field Workers ◽  
Dimorphic Species ◽  
Biological Differences

While investigating the biology of the North American species of Hypomolyx, field workers in Manitoba found a vestigial, or short-winged, and a long-winged form under apparently identical conditions in about equal numbers. Although biological differences were nor then apparent, there was doubt as to whether they were dealing with one dimorphic species or with two distinct species, A search for morphological characters brought to light numerous differences between the two forms, supporting the view that two species were present. These differences, a description the previously unrecognized species, and notes concerning the status of the genera Hylobius and Hypomolyx are reported below.

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