Notes on the Life-history of Cheiloneurus noxius, Compere (Hym.)

1937 ◽  
Vol 28 (2) ◽  
pp. 181-183 ◽  
Author(s):  
Richard H. Le Pelley
Keyword(s):  
Life History ◽  
Southern California ◽  
World Wide ◽  
Wide Distribution ◽  
Economic Importance ◽  
Number Of Species ◽  
History Of ◽  
Made In

A number of species of this genus of Encyrtid parasites are known to be, and others are suspected to be, secondary parasites ; but apparently the complete life-history has not been observed in any one case. As the genus has an almost world-wide distribution and is doubtless of considerable economic importance, the following observations made in Southern California in part of 1935 and 1936 are recorded.

scholarly journals ON SOME DIPTERA BRED FROM COW-MANURE

1901 ◽  
Vol 33 (2) ◽  
pp. 42-44 ◽  
Author(s):  
L. O. Howard
Keyword(s):  
Life History ◽  
Distinct Species ◽  
Cow Dung ◽  
Cow Manure ◽  
Horn Fly ◽  
Number Of Species ◽  
History Of ◽  
Working Out ◽  
Made In ◽  
General Appearance

In the summer of 1889, while engaged in an investigation of the habits and life-history of the horn fly of cattle (Haematobia serrata), the writer at various times brought to Washington from different points in Virginia, large quantities of cow-manure collected in the field, and eventually succeeded in working out the complete life-history of the horn fly, as displayed in Insect Life, Vol. II., No.4, October, 1889. In this article the statement is made, in concluding, that the observations were greatly hindered and rendered difficult by the fact that fresh cow-dung is the nidus for a number of species of Diptera, some about the same size and general appearance as the horn fly, and that no less than twenty distinct species of flies had been reared from horse- and cow-dung, mainly the latter, and six species of parasitic insects as well.

The Biology of the Genus Pissodes. (George Heriot Research Fellowship Thesis.)

1902 ◽  
Vol 23 ◽  
pp. 319-358
Author(s):  
R. Stewart MacDougall
Keyword(s):  
Life History ◽  
Economic Importance ◽  
The Other ◽  
Remedial Measures ◽  
Research Fellowship ◽  
History Of ◽  
The One ◽  
Harmful Insect

In the case of any harmful insect of economic importance, in order to war against it, or apply remedial measures at all intelligently, a knowledge of the life-history of the pest is necessary. This proposition will, I think, meet with such ready acceptance as to render proof unnecessary, but I might in illustration mention two cases which came under my own observation, where in the one case a knowledge of the round of life of the attacking insect saved a whole forest, and in the other proved of great importance.

scholarly journals Notes on the preliminary stages of Glossina Morsitans, Westw

1911 ◽  
Vol 2 (4) ◽  
pp. 291-295 ◽  
Author(s):  
Allan Kinghorn
Keyword(s):  
South Africa ◽  
Life History ◽  
Large Mass ◽  
Wide Distribution ◽  
Economic Importance ◽  
Tsetse Fly ◽  
Single Specimen ◽  
Glossina Morsitans ◽  
First Time

Seeing that Glossina morsitans, the typical “tsetse” fly of writers on South Africa, has been well known for perhaps a longer period than any other member of the genus, it is a matter for great surprise that much of its life history is yet entirely unknown. A large mass of literature, dealing with its general habits, is extant, but the breeding habits and the larva have not been described. It is noteworthy that only last year a single specimen of the puparium was discovered for the first time, and when the wide distribution, the great plentitude, and the economic importance of the fly are considered, this becomes all the more remarkable.

On the life History of Bucentes (siphona) geniculata (Diptera: tachinidae), Parasite of Tipula paludosa (Diptera) and other Species

Parasitology ◽  
1920 ◽  
Vol 12 (3) ◽  
pp. 199-211 ◽  
Author(s):  
John Rennie ◽  
Christina H. Sutherland
Keyword(s):  
Life History ◽  
Number Of Species ◽  
History Of

The Dipterous Family, Tachinidae, comprises a very large number of species whose larvae live as parasites within other insects, particularly in their larval forms.

Human Trichinella infection outbreaks in Slovakia, 1980-2008

2016 ◽  
Vol 61 (2) ◽  
Author(s):  
Pavol Dubinský ◽  
Daniela Antolová ◽  
Katarína Reiterová
Keyword(s):  
World Wide ◽  
Wide Distribution ◽  
Health Problems ◽  
Economic Importance ◽  
Trichinella Infection ◽  
Frequent Species

AbstractTrichinellosis, a parasitic zoonosis with world-wide distribution, causes serious health problems in humans and is also of economic importance. In Slovakia the most frequent species is

A Contribution to the Life-history of a Gnathostome

Parasitology ◽  
1925 ◽  
Vol 17 (3) ◽  
pp. 237-244 ◽  
Author(s):  
Asa C. Chandler
Keyword(s):  
Life History ◽  
Intestinal Tract ◽  
The Body ◽  
Stomach Wall ◽  
Hollow Structures ◽  
Number Of Species ◽  
The Family ◽  
History Of

The family Gnathostomidae contains several genera and a fair number of species of nematodes of rather aberrant type and of uncertain affinities. As pointed out by Baylis and Lane (1920) in their excellent revision of the family, there is little doubt but that it should be included in the superfamily Spiruroidea. The subfamily Gnathostominae is characterised by the possession of a head bulb containing four closed membranous hollow structures, called ballonets by Baylis and Lane, connected posteriorly with four elongate sac-like structures designated cervical sacs. Three genera are recognised in this sub-family as follows: Tanqua, in which the head bulb is provided with transverse cuticular ridges, and Echinocephalus and Gnathostoma in which the head bulb is provided with rows of thorn-like spines. In Echinocephalus the body is smooth and destitute of cuticular spines, whereas in Gnathostoma all or a large part of the body has rows of cuticular spines on the posterior edges of the annulations. The first two genera are parasitic in the intestinal tract of cold-blooded vertebrates, whereas Gnathostoma apparently has its normal habitat in the stomach wall of mammals, as Baylis and Lane have pointed out.

Parthenogenesis in the Mealybug, Phenacoccus solani Ferris

1952 ◽  
Vol 84 (10) ◽  
pp. 308-310 ◽  
Author(s):  
D. C. Lloyd
Keyword(s):  
Life History ◽  
Economic Importance ◽  
Planococcus Citri ◽  
The Family ◽  
Clover Root ◽  
History Of ◽  
Pseudococcus Maritimus ◽  
Comprehensive Study

Reproduction in the Pseudococcidae is usually regarded as being predominantly, if not exclusively, bisexual, though Ferris (1950) has pointed out that within the family as defined by him males are known for only a small percentage of the species described to date. Detailed biological observations have been restricted to those members of considerable economic importance and in regard to reproductive habits there are few specific references in the literature. Hough (1922) in his account of the life history of the clover root mealybug Chnaurococcus trifolli (Forbes) Ferris, stated that no males were seen throughout the period of the observations. James (1937) made a comprehensive study of the reproduction of Planococcus citri (Risso) Ferris, Pseudococcus maritimus (Ehrh) Ferris, P. gahani Green, P. adonidum (Linn.) Ferris, and Trionymus peregrinus Green, and found that parthenogenesis did not occur in any of these species. This confirmed conclusions of earlier workers with Pl. citri (Schrader 1923, Sutherland 1932), and with P. gahani and Phenacoccus gossypii Twns & Ckll. (Basinger 1934). However, Myers (1932) reported parthenogenesis in some of his experiments with Pl. citri but his procedure of isolating females from the cultures after the second moult is clearly open to criticism.

Development of leaf shape in two North American native species of Ampelopsis (Vitaceae)

Botany ◽  
2013 ◽  
Vol 91 (12) ◽  
pp. 857-865 ◽  
Author(s):  
A.W. Jones ◽  
B.G. Doughan ◽  
J.M. Gerrath ◽  
J. Kang
Keyword(s):  
Leaf Development ◽  
Native Species ◽  
World Wide ◽  
Leaf Shape ◽  
Wide Distribution ◽  
Economic Importance ◽  
Developmental Trajectory ◽  
Vitis Vinifera L ◽  
Developmental Study ◽  
Shape Evolution

The Vitaceae (grape family) is a large group of plants with a world-wide distribution. Despite the economic importance of cultivated grapes (Vitis vinifera L.), very little is known about leaf development in the Vitaceae. The genus Ampelopsis contains simple- and compound-leafed forms making it an appropriate genus in which to conduct a comparative developmental study. The Ampelopsis clade diverged early from the rest of the Vitaceae, and the simple- and compound-leaf morphologies are separated into two distinct lineages, leaving the question of how this morphological disjunct arose and what the ancestral leaf shape of this genus might have been. Thus, understanding the development of this trait will clarify our understanding of basic Vitaceae leaf characters and of leaf shape evolution. We found that although the primordia of both the simple- and compound-leafed species shared a fundamental plan that would be predicted to result in a mature complex leaf shape at the outset, their developmental trajectory diverges early in development. We also identified key morphological landmarks that suggest homology between the two species. Based on current phylogenetic analysis, we discuss how our developmental study likely points to homologies that reflect their recent common ancestry despite the morphological disjunct observed in the genus.

A REVIEW OF THE LIFE HISTORY, POPULATION LEVELS, AND SPREAD OF THE ANTLER MOTH, CERAPTERYX GRAMINIS (LEPIDOPTERA: NOCTUIDAE), IN NEWFOUNDLAND

1979 ◽  
Vol 111 (8) ◽  
pp. 933-938 ◽  
Author(s):  
Ray F. Morris
Keyword(s):  
Life History ◽  
Great Britain ◽  
Economic Importance ◽  
Light Traps ◽  
Black Light ◽  
History Of ◽  
Lepidoptera Noctuidae

AbstractThe antler moth, Cerapteryx graminis (L.), first discovered in Newfoundland in 1966, has now successfully established itself over an area of approximately 60 km in the greater St. John’s area and surrounding localities. It has become a pest of limited economic importance in hay and pasture fields, and lawns. Black light traps, operated at Mt. Pearl and Kilbride during 1966–1978, were used to monitor population build-up. Notes on the life history of the antler moth in Newfoundland, with some comparisons with that in Great Britain and Europe, are provided. Natural controls are also discussed.

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