scholarly journals DISCOVERY OF THE WINGED FORM OF RETICULITERMES miyatakei MORIMOTO

ESAKIA ◽  
10.5109/2519 ◽  
1990 ◽  
Vol Special Issue 1 ◽  
pp. 1-4
Author(s):  
Yoko Takematsu
Keyword(s):  
Winged Form

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.

Revision of the leafhopper genus Gurawa (Cicadellidae: Deltocephalinae: Chiasmini) from Pakistan with description of a new species

Zootaxa ◽  
2018 ◽  
Vol 4450 (4) ◽  
pp. 481
Author(s):  
HASSAN NAVEED ◽  
YALIN ZHANG
Keyword(s):  
New Species ◽  
Winged Form ◽  
A New Species

The leafhopper genus Gurawa Distant, 1908 is revised with descriptions and illustrations of a new species, Gurawa longispina sp. nov. and a short winged form of Gurawa minorcephala Pruthi from Pakistan. A key is provided to distinguish known species in this genus from Pakistan. 

A new discovery of a long-winged form of Mexican endemic grasshopper Melanotettix dibelonius Bruner, 1904 (Orthoptera: Acrididae: Gomphocerinae) and notes on wing polymorphism and geographic distribution

Zootaxa ◽  
2020 ◽  
Vol 4838 (4) ◽  
pp. 515-524
Author(s):  
RICARDO MARIÑO-PÉREZ ◽  
SALOMÓN SANABRIA-URBÁN ◽  
BERT FOQUET ◽  
MARTINA E. POCCO ◽  
HOJUN SONG
Keyword(s):  
Geographic Distribution ◽  
Morphological Variation ◽  
Distribution Range ◽  
Statistical Analyses ◽  
Museum Specimens ◽  
Extensive Review ◽  
Distribution Map ◽  
Wing Polymorphism ◽  
Winged Form ◽  
New Discovery

The species Melanotettix dibelonius Bruner, 1904 was previously recorded from Michoacán and Guerrero states in Mexico. This species is characterized by its tegmina, which are always shorter than head and pronotum together and sometimes shorter than the pronotum. After recent field expeditions (2015-2019) and an extensive review of museum specimens from the most important Orthoptera collections in Mexico and USA (291 specimens), we discovered a long-winged form of this species south of its previous known range, which effectively expanded its distribution range into Oaxaca state. We discuss some aspects regarding the patterns of geographic distribution and morphological variation among the long-winged and short-winged morphs. We conduct statistical analyses and observed that on average, the tegmina of long-winged individuals (both females and males) are slightly longer than twice the length of pronotum; whereas in short-winged individuals the tegmina are nearly as long or slightly longer than the length of the pronotum. Moreover, on average, females appear to have longer tegmina than males in both morphotypes. We provide photographic records of both forms live and mounted, the most comprehensive distribution map to date and a discussion of evolutionarily interesting patterns found in this species. 

OCCURRENCE OF THE CHINCH-BUG (BLISSUS LEUCOPTERUS, Say) AT BUFFALO, N. Y.

1886 ◽  
Vol 18 (11) ◽  
pp. 209-210
Author(s):  
E. P. van Duzee
Keyword(s):  
Winged Form ◽  
Chinch Bug ◽  
Blissus Leucopterus

This pernicious insect has been very abundant here for many years. As early as 1874 I found it in considerable numbers among moss on dry, grassy hill-sides at Lancaster, N. Y. This season (1886) it was remarkably abundant in a dry upland hay field near the same locality. I have also taken it at Ridgeway, Ont. Ordinarily the short winged form predominates, but in hot, dry summers, such as those of 1881 and 1886, they mostly acquire fully developed membranes. I find on comparison with a lot of perhaps one hundred fully developed examples from Kansas, that ours are quite uniformly larger and more robust, with longer hairs on the pronotum.

The egg-parasite of Sialis lutaria: a study of the influence of the host upon a dimorphic parasite

Parasitology ◽  
1937 ◽  
Vol 29 (4) ◽  
pp. 539-553 ◽  
Author(s):  
George Salt
Keyword(s):  
Special Interest ◽  
The Other ◽  
Trichogramma Evanescens ◽  
Winged Form ◽  
Egg Parasite ◽  
Pure Lines

1. Nearly a quarter of a million eggs of Sialis lutaria were collected at Cambridge in 1936. About 0·6 per cent of them were attacked by a parasite.2. The egg-parasite of Sialis is distinct from Trichogramma evanescens, and is to be called T. semblidis (Aurivillius).3. The male of Trichogramma semblidis occurs in two forms. Neither consists merely of imperfect or degenerate individuals of the other, for the two forms are equally large and differ constantly and fundamentally in several characters. The species, therefore, exhibits true dimorphism.4. Rearing experiments involving isolated pure lines show that it is principally the host that determines which form of the parasite shall emerge. Males reared on Sialis are of the apterous form; those reared on three species of Lepidoptera are of the winged form.5. The dimorphism of T. semblidis is discussed in relation to other examples of dimorphism in the Hymenoptera. It is shown to have several features of special interest.

scholarly journals A NEW GOOSEBERRY PLANT-LOUSE

1901 ◽  
Vol 33 (8) ◽  
pp. 227-228 ◽  
Author(s):  
W. P. Cockerell ◽  
T. D. A. Cockerell
Keyword(s):  
Winged Form ◽  
Black Spots ◽  
Half Length

Myzus Neomexicanus, n. sp.—Winged form. General colour of head and thorax black; prothorax sage-green with a transverse black shield, narrowest in the middle; sides of thorax green; antennæ black; wings clear, stigma and nervures very dark brown; abdomen sage-green, four quadrate black marks on each side anterior to honey-tubes, the last sometimes a mere speck; honey-tubes blackish, darkest basally; segment bearing honey-tubes with a few black spots, this and the following two segments with transverse black bands; legs black, tibiæ brown. Ocelliferous tubercle prominent; frontal tubercles low and broad, these and first antennal joint very slightly gibbous. Honey-tubes not swollen, 300 μ long and 40 broad, 200 μ short of tip of abdomen, cingulate. Body about 2100 μ long, antennæ about 1030, half length of body. Tibia of anterior leg 700, of hind leg 880 μ. Antennal joints (counting the so-called 7th joint as 6b) measuring: (1) 70, (2) 60, (3) 270, (4) 190, (5) 184, (6a) 100, (6b) 270.

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