scholarly journals Notes on the Biology of the Cixiid PlanthopperCixius meridionalis(Hemiptera: Fulgoroidea)

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
M. L. Bowser
Keyword(s):  
Life History ◽  
Direct Observation ◽  
Picea Mariana ◽  
Host Plants ◽  
Growing Season ◽  
Important Species ◽  
Empetrum Nigrum ◽  
Potential Host ◽  
History Of ◽  
Sweep Net

With the exception of a handful of economically important species, the biology of cixiid planthoppers (Hemiptera: Fulgoroidea: Cixiidae) is poorly known. The host plants and life history ofCixius meridionalisBeirne were investigated in a wetland in Soldotna, Alaska. Specimens were collected over the course of the growing season by hand, aspirator, Berlese funnel, and sweep net. A handful of live nymphs were placed in a terrarium containing potential host plants for direct observation of feeding.C. meridionaliswas found to feed on roots ofPicea mariana(Mill.) Britton, Sterns & Poggenb,Empetrum nigrumL.,Chamaedaphne calyculata(L.) Moench, andVaccinium vitis-idaeaL. At least within the study area,C. meridionalisappears to require multiple years to reach adulthood, with overwintering in nymphal instars.C. meridionaliswas occasionally tended byMyrmica alaskensisWheeler.

scholarly journals The application of life history information to the conservation management of Chrysoritis butterflies (Lepidoptera: Lycaenidae) in South Africa

Koedoe ◽  
2004 ◽  
Vol 47 (1) ◽  
Author(s):  
R.F. Terblanche ◽  
H. Van Hamburg
Keyword(s):  
South Africa ◽  
Life History ◽  
Life Histories ◽  
Host Plants ◽  
Conservation Management ◽  
Aesthetic Value ◽  
Wing Patterns ◽  
In The Wild ◽  
History Of ◽  
Voucher Specimens

Due to their intricate life histories and the unique wing patterns and colouring the butterflies of the genus Chrysoritis are of significant conservation and aesthetic value. Thisoverview probes into practical examples of butterfly life history research applicable to environmental management of this relatively well-known invertebrate group in South Africa. Despite the pioneer work on life histories of Chrysoritis in the past, more should be done to understand the life history of the butterflies in the wild, especially their natural host plants and the behaviour of adults and larvae. A system of voucher specimens of host plants should be introduced in South Africa. Although various host plant species in nature are used by the members of Chrysoritis, including the Chrysoritis chrysaor group, the choice of these in nature by each species is significant for conservation management and in the case of Chrysoritis aureus perhaps even as a specific characteristic.A revision of the ant genus Crematogaster will benefit the conservation management of Chrysoritis species since some of these ant species may consist of a number of specieswith much more restricted distributions than previously thought. Rigorous quantified tudies of population dynamics of Chrysoritis butterflies are absent and the introductionof such studies will benefit conservation management of these localised butterflies extensively.

Feeding and Life History of Spodoptera exigua (Lepidoptera: Noctuidae) on Different Host Plants

2001 ◽  
Vol 94 (4) ◽  
pp. 566-575 ◽  
Author(s):  
S. M. GREENBERG ◽  
T. W. Sappington ◽  
B. C. Legaspi ◽  
T.-X. Liu ◽  
M. Sétamou
Keyword(s):  
Life History ◽  
Host Plants ◽  
Spodoptera Exigua ◽  
History Of ◽  
Lepidoptera Noctuidae

Life History of the Pine Tip Moth, Rhyacionia adana Heinrich, in Ontario (Lepidoptera: Olethreutidae)

1960 ◽  
Vol 92 (10) ◽  
pp. 724-728 ◽  
Author(s):  
J. Lynton Martin
Keyword(s):  
Life History ◽  
Host Plants ◽  
Pine Plantations ◽  
Study Program ◽  
Southern Ontario ◽  
Tree Damage ◽  
History Of ◽  
Seasonal History

Infestations of Rhyacionia adana Heinrich have almost certainly been common in young pine plantations throughout southern Ontario for a number of years, but, because resultant tree damage has been confused with that of the European pine shoot moth, R. buoliana (Schiff.), the species itself has been overlooked.Although R. adana was described in 1923 (Heinrich, 1923), the seasonal history has never been worked out, and even the host plants were not recorded until 1959 (Martin, 1959). In 1957, a study program was begun to learn the life history and habits of the species in Ontario, the results of which are presented here.

Observations on the life-history of Alarodia nana (Möschler) (Lep., Limacodidae) in Jamaica and a method for its control on Citrus

1967 ◽  
Vol 57 (3) ◽  
pp. 381-386
Author(s):  
J. Strangways-Dixon
Keyword(s):  
Life History ◽  
Incubation Period ◽  
Field Trial ◽  
Host Plants ◽  
Wire Mesh ◽  
History Of ◽  
Major Pest ◽  
Low Volume ◽  
Secondary Host Plants ◽  
Work Done

Alarodia nana (Möschler) (Lepidoptera, Limacodidae) is a major pest of Citrus in Jamaica. An outbreak of the larvae, the ‘ slug caterpillar ’, may result in severe defoliation. All stages are found on the foliage and are present throughtout the year; the adults are inactive by day and appear to be weak fliers.Earlier attempts to breed the insect in the laboratory had been unsuccessful, and, whereas attempts at control had indicated that malathion was effective against the larvae, reingestation had invariably taken place, well-grown larvae being found five weeks after treatment.In the present work, done in 1963–4, adults that emerged from field-collected cocoons held in wire-mesh cages over Citrus plants in the laboratory mated on the night of emergence and the females oviposited readily on the following night. A technique for rearing individual larvae and for measuring their head capsules is described. In the laboratory at a mean midday temperature of about 27°C., the incubation period of the eggs was 6–8 days, and the durations of the larval and pupal phases 25–42 and 14–19 days, respectively.Results of a search for secondary host-plants from which reinfestation might take place were negative. Observations of emergence in the laboratory of adults from cocoons collected just before and just after the application to an orchard of a low-volume malathion spray derived from a 57 per cent. emulsifiable concentrate by dilution at the rate of 1: 80 in water showed that many pupae had survived the application, and suggested that reinfestation might arise from moths emerging from such pupae.A field trial comprising two application of the low-volume spray of malathion was carried out; the second application, designed to destroy larvae derived from pupae that had survived the first application, was made after an interval of 312; weeks and was completely successcful.

scholarly journals Resolving the early life history of King George whiting (Sillaginodes punctatus: Perciformes) using otolith microstructure and trace element chemistry

2019 ◽  
Vol 70 (12) ◽  
pp. 1659 ◽  
Author(s):  
Troy A. Rogers ◽  
Anthony J. Fowler ◽  
Michael A. Steer ◽  
Bronwyn M. Gillanders
Keyword(s):  
Life History ◽  
Retrospective Analysis ◽  
Early Life ◽  
Fishery Management ◽  
Early Life History ◽  
Otolith Microstructure ◽  
Larval Food ◽  
Successive Sampling ◽  
Important Species ◽  
History Of

Understanding the early life history processes of fish that lead to recruitment is critical for understanding population dynamics. This study explored the early life history of King George whiting (Sillaginodes punctatus) that recruited to an important nursery area in South Australia in 2016 and 2017. The early life history was reconstructed based on the retrospective analysis of otolith microstructure and chemistry for settlement-stage larvae collected fortnightly from July to November. These fish hatched between March and July, but a 3-week period in May led to 52–71% of recruitment. Recruits from successive sampling occasions differed in age, size and growth rate, potentially related to seasonal changes in water temperature and larval food availability. During both years, there were significant changes in otolith elemental chemistry among the groups of recruits that primarily related to changes in Sr:Ca. There are two hypotheses to account for the differences in otolith chemistry: either (1) a single, primary spawning source and within-season environmental change; or (2) multiple spawning sources. Further investigation with oceanographic models of larval dispersal will help differentiate between these. The retrospective analysis of otoliths has improved the understanding of early life history for this important species, with implications for fishery management.

Taxonomic Revision of the Obligate Plant-Ants of the Genus Crematogaster Lund (Hymenoptera, Formicidae, Myrmicinae), Associated with Macaranga Thouars (Euphorbiaceae) on Borneo and the Malay Peninsula

Sociobiology ◽  
2016 ◽  
Vol 63 (1) ◽  
pp. 651 ◽  
Author(s):  
Heike Feldhaar ◽  
Ulrich Maschwitz ◽  
Brigitte Fiala
Keyword(s):  
Life History ◽  
New Species ◽  
Natural History ◽  
Molecular Phylogeny ◽  
Host Plants ◽  
Taxonomic Revision ◽  
Malay Peninsula ◽  
Se Asia ◽  
History Information ◽  
History Of

The taxonomy and natural history of ants of the genus Crematogaster Lund, 1831 (Crematogaster borneensis-group of the former subgenus Decacrema) obligately associated with myrmecophytic host-plants of the euphorb genus Macaranga are reviewed. Within this group of ants Crematogaster borneensis André, 1896 (with five subspecies and four varieties), Crematogaster captiosa Forel, 1910 as well as Crematogaster decamera Forel, 1910 have previously been described from SE Asia. Here we synonymise C. borneensis subsp. capax Forel, 1911, C. borneensis subsp. hosei Forel, 1911, C. borneensis subsp. sembilana Forel, 1911, and C. borneensis var. macarangae Viehmeyer, 1916 with C. borneensis André, 1896. Crematogaster borneensis var. harpyia Forel, 1911, C. borneensis var. insulsa Forel, 1911, C. borneensis subsp. symbia Forel, 1911, and C. borneensis subsp. novem Forel, 1911 are synonymised with C. captiosa Forel, 1910. In addition we describe five new species: C. claudiae sp. nov., C. hullettii sp. nov., C. linsenmairi sp. nov., C. maryatii sp. nov., and C. roslihashimi sp. nov.. Seven of these eight species are placed into two informal species subgroups based on queen morphology, life-history characters and a formerly published molecular phylogeny. Keys are provided for the identification of queens and workers, as well as natural history information on the eight ant species. The morphology of these Macaranga-associated Crematogaster (formerly Decacrema) species is compared to the only other three species described for this former subgenus in SE Asia, i.e. C. angulosa André, 1896, C. biformis André, 1892 and C. cephalotes Smith, 1857.

Some Aspects in the Biology of Longicorn Beetles

1930 ◽  
Vol 21 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Ivar Trägårdh
Keyword(s):  
Life History ◽  
Point Of View ◽  
Systematic Analysis ◽  
Important Species ◽  
Numerous Species ◽  
Practical Point ◽  
Short Survey ◽  
History Of

The Longicorn beetles comprise numerous species that are highly injurious both to growing trees and to timber, and some excellent papers have been published dealing either with important species and the methods of preventing their damage (Brooks, 1920) or giving a survey of a particular fauna (Craighead, 1923). Nevertheless, there are some rather important features of the life-history of these beetles that seem to have attracted onlyscant attention, and which have hitherto not been subjected to a systematic analysis. The purpose of this paper is to call attention to these neglected features and to give a short survey of the meagre and scattered information that we have about them, in order tostimulate further study, which seems warranted from both a theoretical and a practical point of view.

Sign in / Sign up

Export Citation Format

Share Document