SOME NEW NORTH AMERICAN SPECIES OF DELTOCEPHALOID LEAFHOPPERS

1935 ◽  
Vol 67 (8) ◽  
pp. 164-172 ◽  
Author(s):  
Dwight M. Delong ◽  
Ralph H. Davidson
Keyword(s):  
North American ◽  
Anterior Margin ◽  
North American Species ◽  
Apical Cells ◽  
Basal Width ◽  
Short Covering ◽  
General Appearance

Resembling caperatus in size and general appearance but without color markings, apparently more closely related to apicatus and alboneura but with short wings. Length 2-2.5 mm.Vertex bluntly angled, a little longer on middle than basal width between eyes. Elytra short covering only first four or five basal segments of abdomen, apical cells very small.Color straw yellow, frequently unmarked. Ocelli black. 111 dark specimens with faint markings on vertex. Four large brown spots on anterior margin of pronotum and veins of elytra heavily infuscated.

scholarly journals THE NORTH AMERICAN SPECIES OF GNATHODUS

1896 ◽  
Vol 28 (2) ◽  
pp. 35-42 ◽  
Author(s):  
Carl F. Baker
Keyword(s):  
United States ◽  
North American ◽  
The United States ◽  
Wide Distribution ◽  
North American Species ◽  
Characteristic Appearance ◽  
The North ◽  
Apical Cells

The genus Gnathodus, as at present accepted, includes forms closely allied to Cicadula, but differing in having only two apical cells in the wing. They are of a weaker build than species of Cicadula, and a characteristic appearance from above makes them readily distinguishable from any of that genus. The species are very variable and difficult to define. They are small, more or less slender, greenish, yellowish, or whitish Jassids, usually without distinct markings. The ocelli are distant from the eyes. The clypeus usually somewhat exceeds the genæ. The ovipositor rarely exceeds the pygofers. In the United States at least, most of the species are of very wide distribution.

scholarly journals THE NORTH AMERICAN SPECIES OF NEMISTRINIDÆ

1883 ◽  
Vol 15 (4) ◽  
pp. 69-72 ◽  
Author(s):  
S. W. Williston
Keyword(s):  
North America ◽  
South America ◽  
North American ◽  
North American Species ◽  
Southern Europe ◽  
The North ◽  
The Family ◽  
The World ◽  
General Appearance

The family of Nemistrinidæ comprises throughout the world one hundred and ten described species, six or seven of which are from Southern Europe and three from North America; the remainder nearly equally distributed in Asia, Africa, Australia and South America. In their habits, so far as known, the species approach the Bombylidæ most closely, as also do many in their general appearance. Structurally they are of interest to the Dipterologist, on account of their intricate and diverse neuration, which in some species is almost Neuropter-like in the reticulation.Doubtless the number of our species will be augmented by future discoveries, but yet we can never expect a very material increase.

NOTES ON THE GENUS PROTARCHOIDES (HYMEN., ICHNEUMONIDAE)

1938 ◽  
Vol 70 (11) ◽  
pp. 230-232 ◽  
Author(s):  
C. Stuart Walley
Keyword(s):  
North American ◽  
North American Species ◽  
Close Relationship ◽  
Relationship Of

The following notes were assembled in arranging the Protarchoides material in the National Collection. In establishing the identity of Protarchoides mellipes (Prov.) it has been found necessary to synonymize one species. A species allied to mellipes is described as new and a table is provided for the separation of the four known North American species. The recording of Trichiosoma as host for a member of this genus is further evidence of the close relationship of the genus with Protarchus Foer.

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.

Sign in / Sign up

Export Citation Format

Share Document