On the life history of Synthesiomyia nudiseta van der Wulp (Diptera, Muscidae), a myiasis-producing fly

Parasitology ◽  
1942 ◽  
Vol 34 (3-4) ◽  
pp. 239-245 ◽  
Author(s):  
L. B. Siddons ◽  
D. N. Roy
Keyword(s):  
Life History ◽  
Present Communication ◽  
Interesting Fact ◽  
Larval Stages ◽  
Early Stages ◽  
History Of

Townsend (1935) has described the egg of Synthesiomyia nudiseta and recorded the interesting fact that the larva forms a cocoon. The larval stages and the puparium do not appear to have been described. That this species was not among the larvae of some unknown muscids described by Banks (1912) is evident from the figures of the-posterior spiracles. The present communication provides an account of all the early stages.

The Euphausiidæ in the Neighbourhood of Plymouth. II. Nyctiphanes Couchii and Meganyctiphanes noruegica.

1925 ◽  
Vol 13 (4) ◽  
pp. 810-847 ◽  
Author(s):  
Marie V. Lebour
Keyword(s):  
Life History ◽  
Remaining Life ◽  
Larval Stages ◽  
History Of ◽  
Meganyctiphanes Norvegica

The present paper is a continuation of last year's work on the Euphausiidæ in the neighbourhood of Plymouth (Lebour, 1924), in which the early larval stages were described of Nyctiphanes Couchii, Meganyctiphanes norvegica and, less fully, those of Thysanoessa inermis and T. neglecta. These two last-named forms are reserved for a detailed description in another paper, only Nyctiphanes and Meganyctiphanes being dealt with here. The first paper described these as far as the last Calyptopis stages, and it was shown that they were much alike although perfectly distinct, especially as regards colour. The nauplii and metanauplii were easily distinguishable. The whole of the remaining life-history of Nyctiphanes Couchii has now been elucidated and also that of Meganyctiphanes norvegica, with the exception of a few late larval stages. The absence of these, however, does not materially affect our knowledge of its life-history.

scholarly journals The biology of Limacina retroversa

1954 ◽  
Vol 33 (2) ◽  
pp. 297-312 ◽  
Author(s):  
J. E. Morton
Keyword(s):  
Life History ◽  
Breeding Season ◽  
Detailed Account ◽  
Larval Stages ◽  
Large Numbers ◽  
History Of ◽  
Clione Limacina

The Plymouth Fauna List contains records of two genera of pteropods, Limacina and Clione. Of the first, Limacina retroversa (Flem.) is by far the better-known species, apparently occurring regularly at Plymouth in large numbers in townettings from outside, and sometimes inside, the Sound. It breeds at Plymouth from June to August, and Lebour (1932) has given a detailed account of its breeding and larval stages and has discussed its role in the plankton. The second species of Limacina at Plymouth is lesueuri (d'Orbigny), which has been observed from time to time since 1906, when it was very common. The last record in the Fauna is off the Breakwater in 1920. Of the gymnosomatous pteropods, Clione limacina Phipps is the only species regularly occurring. Lebour (1931) has described the life history of this form, and mentions February to August as its months of greatest abundance. Its breeding season is June to August. Another gymnosome, tentatively referred to as Clionina longicauda, is reported by Russell (1936), and from the specimen department at Plymouth Laboratory the writer obtained some preserved specimens, not easily identifiable, of a Pneumodermopsis taken locally; its species is perhaps ciliata, recorded by Massy (1917) from the Irish Coast.

The larval stages of the Nematode Mermis nigrescens

Parasitology ◽  
1947 ◽  
Vol 38 (1-2) ◽  
pp. 10-16 ◽  
Author(s):  
H. A. Baylis
Keyword(s):  
Life History ◽  
Larval Development ◽  
Forficula Auricularia ◽  
Larval Stages ◽  
History Of

In a former paper (Baylis, 1944) an account was given of some observations on the life-history of Mermis nigrescens, and of its occurrence, naturally and experimentally, in earwigs (Forficula auricularia). As stated in that paper, the material then available did not seem to warrant an attempt to describe the larval development. Further material has now been obtained and studied, and it seems desirable to place on record some of the observations made, although many points still remain obscure.

The life-history and control of Hapatesus hirtus Candeze (Coleoptera: Elateridae) in Victoria

1991 ◽  
Vol 42 (5) ◽  
pp. 827 ◽  
Author(s):  
PA Horne ◽  
JA Horne
Keyword(s):  
Life History ◽  
Field Trials ◽  
Soil Samples ◽  
Control Measures ◽  
Potato Tubers ◽  
Larval Stages ◽  
Complete Development ◽  
History Of ◽  
And Control ◽  
Potato Crops

The incidence and life-history of potato wireworm, Hapatesus hirtus Candeze, in Victorian potato crops were studied, and insecticidal control measures assessed. Larval stages were present and active throughout the year. Ten larval instars were identified, probably requiring several years to complete development. Egg development occurred in October-November and the most likely timing of oviposition was December. The relative numbers of larval H. hirtus detected in soil samples, pre-planting baits and harvested tubers are presented. Baiting with halves of potatoes provided an efficient means of detecting areas likely to suffer wireworm damage. One formulation of chlorpyrifos ('Lorsban') was effective in reducing damage to, and larval numbers in, potatoes in field trials. The granular formulation of tefluthrin and the controlled release chlorpyrifos were not effective in protecting potato tubers.

The Early Stages of Oidaematophorus phaceliae McD. (Lepidoptera: Pterophoridae)

1964 ◽  
Vol 96 (3) ◽  
pp. 538-540
Author(s):  
John Adams Comstock
Keyword(s):  
Life History ◽  
Early Stages ◽  
History Of

AbstractNotes and illustrations of the life history of the pterophorid moth, Oidaematophorus phaceliae McD., are given, and former errors of determination are corrected.

XXI.—The Life-history and Development of Agriolimax agrestis L., the Gray Field Slug.

1939 ◽  
Vol 59 (3) ◽  
pp. 563-597 ◽  
Author(s):  
Robert Carrick
Keyword(s):  
Life History ◽  
Life Histories ◽  
Adult Life ◽  
Single Species ◽  
Functional Changes ◽  
Breeding Habit ◽  
Early Stages ◽  
History Of ◽  
Highly Evolved

Among Gasteropod Molluscs the life-histories and development of the most highly evolved members, the terrestrial Pulmonates, have been less intensively studied than those of more primitive aquatic forms. This has been due in part to the technical difficulties involved in the permanent preparation of material for study, and in part to the fact that the investigator seeking for primitive features of phyletic interest is more likely to find these among more generalised species of Gasteropods than among those which are obviously adapted, both during the early stages of their development and in adult life, to a habitat far removed from the ancestral one.It is the purpose of this paper to present data bearing upon the life-history of a single species of land Pulmonate, Agriolimax agrestis L., to enlarge upon certain aspects of the embryology of this species, and to demonstrate the structural and functional changes of the larva which have accompanied the transition from an aquatic to a terrestrial breeding habit.

scholarly journals XXXI.—The Life-History of Xenopus lævis, Daud

1906 ◽  
Vol 41 (3) ◽  
pp. 789-821 ◽  
Author(s):  
Edward J. Bles
Keyword(s):  
Life History ◽  
Xenopus Laevis ◽  
Early Life ◽  
Early Life History ◽  
General Interest ◽  
Present Communication ◽  
Stages Of Development ◽  
Free Swimming ◽  
History Of

The present communication is intended to be the first of a series dealing with observations on the life-history of the Anura Aglossa and their anatomy at different stages of development. Xenopus lævis, with its small ova and protracted larval free-swimming stages, must necessarily form a basis for the study of the development of that other remarkable Aglossan, Pipa americana. Although the adult Aglossan is an aberrant and specialised Anuran, there are Urodele features in the development of Xenopas which make its embryology of great general interest. These primitive features, combined with others peculiar to the genus, impress a character upon the early life-history of this frog which is widely divergent from that of the Phaneroglossa with small ova.

EARLY STAGES IN THE LIFE HISTORY OF THE COMMON MARINE SHRIMP, PENAEUS SETIFERUS (LINNAEUS)

1949 ◽  
Vol 96 (2) ◽  
pp. 168-172 ◽  
Author(s):  
WILLIAM W. ANDERSON ◽  
JOSEPH E. KING ◽  
MILTON J. LINDNER
Keyword(s):  
Life History ◽  
Early Stages ◽  
Penaeus Setiferus ◽  
Marine Shrimp ◽  
History Of ◽  
The Common

scholarly journals ADDITIONAL NOTES ON THE LIFE-HISTORY OF ARCTIA PHALERATA, HARR

1902 ◽  
Vol 34 (2) ◽  
pp. 50-51
Author(s):  
Arthur Gibson
Keyword(s):  
Life History ◽  
Stage Iv ◽  
The Body ◽  
Lateral Band ◽  
Larval Stages ◽  
The Past ◽  
History Of ◽  
Dorsal Stripe ◽  
Past Summer

In the December number, 1900, of this journal, page 369, the writer published the life-history of the above Arctian. During the past summer, through the kindness of Mr. A. Kwiat, of Chicago, in forwarding eggs of A. phalerata (laid 18th June), I have had the opportunity of still further studying this species, and, as these larvæ varied considerably fromthose described in 1900, the following notes were made :In the larval stages i, ii and iii those bred in 1901 answered well to my former descriptions. In stage iv the larvæ were not so black as the specimens reared the previous year, but many of them showed the dorsal stripe. This stripe was also present in stage v, besides which 40 of the larvæ possessed a series of pale orange spots on sides between tubercles ii and iii, and iii and iv, and the skin of the body in a line with the upper spots(between tubercles ii and iii) was slightly grayish, not black like the rest of the skin; this and the spots gave the appearance of a faint lateral band, distinguishable on all segments but 2 and 13. In stage v in 1900 none of the larvæ showed the dorsal stripe.

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