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You searched for: Journal African entomology Remove constraint Journal: African entomology Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.25 no.2 Remove constraint Source: 2017 v.25 no.2
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1. Application of PCR-RFLP of COI Gene for Identification of Life Stages of Bactrocera dorsalis and Ceratitis anonae Infesting Citrus in Southeastern Nigeria

Author:
Onah, I.E.; Eyo, J.E.; Taylor, D.
Source:
African entomology 2017 v.25 no.2 pp. 485-493
ISSN:
1021-3589
Subject:
Bactrocera dorsalis; Ceratitis; Citrus; DNA barcoding; crop production; enzymes; fruit flies; fruits; genes; immatures; phylogeny; polymerase chain reaction; quarantine; restriction fragment length polymorphism; Nigeria
Abstract:
... The exotic Bactrocera dorsalis and the native Ceratitis anonae infest citrus and constitute a threat to citrus production in Nigeria. The immature stages of the two species are difficult to differentiate morphologically and share the same fruit in the study area. A 658 bp portion of the COI gene was amplified and sequenced in 88 life stages of the species using LCO1490/HCO2198 primers. The enzymes ...
DOI:
10.4001/003.025.0485

2. Attagenus pseudocinereus — A New Species (Coleoptera: Dermestidae) from South Africa

Author:
Herrmann, A.; Kadej, M.
Source:
African entomology 2017 v.25 no.2 pp. 413-416
ISSN:
1021-3589
Subject:
Attagenus; new species; scientific illustration; taxon descriptions; Namibia; South Africa
Abstract:
... A new species, Attagenus (s. str.) pseudocinereus collected in South Africa near the border with Namibia, is described, illustrated and compared with the similar looking species Attagenus cinereus (Thunberg, 1815) occurring in the same country. Furthermore, a list of all species belonging to this genus so far recorded from South Africa is provided. ...
DOI:
10.4001/003.025.0413

3. Benthic Macroinvertebrate Assemblage Along a Pollution Gradient in the Steelpoort River, Olifants River System

Author:
Matlou, K.; Addo-Bediako, A.; Jooste, A.
Source:
African entomology 2017 v.25 no.2 pp. 445-453
ISSN:
1021-3589
Subject:
Baetidae; Chironomidae; Leptophlebiidae; Perlidae; aquatic environment; community structure; dissolved oxygen; macroinvertebrates; mining; physicochemical properties; pollutants; pollution; rivers; sewage; total dissolved solids; turbidity; water quality
Abstract:
... The Steelpoort River is affected by a wide range of pollutants resulting from mining, industrial and agricultural activities and domestic sewage. Benthic macroinvertebrates are often used to assess water quality as they respond to changes in the aquatic environment. The study was to assess the benthic macroinvertebrate communities in the Steelpoort River along a pollution gradient, from less pollu ...
DOI:
10.4001/003.025.0445

4. Biology and Rearing of Ectomyeolis ceratoniae Zeller (Lepidoptera: Pyralidae), Carob Moth, a Pest of Multiple Crops in South Africa

Author:
Thackeray, S.R.; Moore, S.D.; Kirkman, W.; Hill, M.P.
Source:
African entomology 2017 v.25 no.2 pp. 474-480
ISSN:
1021-3589
Subject:
Ectomyelois ceratoniae; Nosema; artificial diets; crops; head; insects; instars; larvae; mass rearing; mortality; neonates; pecans; pests; pupae; South Africa
Abstract:
... Ectomyeolis ceratoniae Zeller (Lepidoptera: Pyralidae), carob moth, is a pest of several crops in South Africa. A laboratory culture was established from field-collected larvae infesting mummified pecan nuts. Biological parameters of larvae reared on an artificial diet were measured. The insect goes through five larval instars, and the head capsule sizes of the five instars were determined to be ≤ ...
DOI:
10.4001/003.025.0474

5. Botanical Origin of Pollen Collected by Apis mellifera scutellata Lepeletier (Hymenoptera: Apidae) in a Suburb of Pretoria, South Africa

Author:
Mailula, M.T.; Nofemela, R.S.
Source:
African entomology 2017 v.25 no.2 pp. 417-427
ISSN:
1021-3589
Subject:
Acacia; Ageratum conyzoides; Apis mellifera scutellata; Persicaria capitata; Tithonia rotundifolia; apiaries; autumn; botanical composition; farms; flowers; forage; foraging; grasses; honey bee colonies; honey bees; indigenous species; introduced plants; legs; nectar; pellets; phenology; pollen; research institutions; savannas; shrubs; social insects; spore traps; spring; suburban areas; summer; winter; South Africa
Abstract:
... The savannah honeybee, Apis mellifera scutellata Lepeletier (Hymenoptera: Apidae), is a eusocial insect that forages for nectar and pollen on a variety of flowering plants. However, it is selective of plants from which it forages. The preferred species are called bee-plants. The concept of bee-plants recognises that flowers do not have the same pollen and nectar value to honeybees. Thus, the stren ...
DOI:
10.4001/003.025.0417

6. Changes in Chemical Composition of Essential Oils from Leaves of Different Lantana camara L. (Verbenaceae) Varieties after Feeding by the Introduced Biological Control Agent, Falconia intermedia Distant (Hemiptera: Miridae)

Author:
Ngxande-Koza, S.W.; Heshula, L.U.P.; Hill, M.P.
Source:
African entomology 2017 v.25 no.2 pp. 462-473
ISSN:
1021-3589
Subject:
Lantana camara; Miridae; alpha-caryophyllene; biological control; biological control agents; chemical composition; essential oils; farms; gas chromatography-mass spectrometry; herbivores; hexane; hydrodistillation; leaves; naphthalene; plant-insect relations; South Africa
Abstract:
... Lantana camara L. (Verbenaceae) is one of the most problematic plant invaders in South Africa and has been targeted for biological control for over 50 years. Essential oil constituents which often change in response to insect herbivory are reported to play a crucial role in plant—insect interactions. However, nothing is known about the chemical profiles of essential oils of L. camara varieties in ...
DOI:
10.4001/003.025.0462

7. Discovery of the Queen Caste of the Myrmicine Ant Meranoplus pulcher Sharaf, 2014 (Hymenoptera: Formicidae)

Author:
Sharaf, M.R.; Aldawood, A.S.
Source:
African entomology 2017 v.25 no.2 pp. 502-505
ISSN:
1021-3589
Subject:
Formicidae; mountains; scientific illustration; taxon descriptions; Saudi Arabia
Abstract:
... The queen caste of the Arabian species Meranoplus pulcher Sharaf, 2014 is described and illustrated for the first time. The queen caste of the species is apparently rare with only a single specimen collected over a two-year period of intensive field work in southwestern Asir Mountains of Saudi Arabia. A distribution map of the species is presented. ...
DOI:
10.4001/003.025.0502

8. Effects of Certain Natural Breeding Site Characteristics on the Distribution of Culicidae (Diptera) Mosquito Species in Southeast Algeria

Author:
Merabti, B.; Lebouz, I.; Adamou, A.E.; Kouidri, M.; Ouakid, M.L.
Source:
African entomology 2017 v.25 no.2 pp. 506-514
ISSN:
1021-3589
Subject:
Aedes caspius; Anopheles sergentii; Culex pipiens; Culiseta; biogeography; breeding sites; flora; immatures; inventories; vector control; vegetation; Algeria
Abstract:
... This study aimed to characterise mosquito species distribution based on the nature and type of breeding habitats and the influence of the vegetation that occupies these sites. Knowledge of variation in breeding site types can help in the design of optimal vector control strategies. In different areas of Biskra (southeast Algeria), mosquito immature stages were collected using standard dippers. Twe ...
DOI:
10.4001/003.025.0506

9. First Records of Aphaniosoma Becker (Diptera: Chyromyidae) from Algeria

Author:
Aissa, N. Baba; Doumandji, S.E.; Ebejer, M.J.
Source:
African entomology 2017 v.25 no.2 pp. 481-484
ISSN:
1021-3589
Subject:
Diptera; ecology; oases; Algeria
Abstract:
... Five species of Aphaniosoma Becker, 1903 are recorded for the first time from Algeria: Aphaniosoma annulatum Lyneborg, 1973, A. approximatum Becker, 1903, A. fissum Collin, 1949, A. nigricauda Ebejer, 1998 and Aphaniosoma sp. All were collected in the northern Sahara of Algeria in the oases of Oued M'Zab and in the region of Ghardaïa. The limited information on distribution, biology and ecology of ...
DOI:
10.4001/003.025.0481

10. First Records of Brevipalpus lewisi McGregor (Acari: Trombidiformes: Tenuipalpidae) in South Africa, with Notes on Distribution and Field Ecology

Author:
Saccaggi, D.L.; Ueckermann, E.A.; Toit, I. du; Ngubane-Ndhlovu, N.P.
Source:
African entomology 2017 v.25 no.2 pp. 523-528
ISSN:
1021-3589
Subject:
Brevipalpus lewisi; Citrus; Trombidiformes; Vitis; crops; ecology; mites; national surveys; pests; South Africa
Abstract:
... The presence of Brevipalpus lewisi (Trombidiformes: Tenuipalpidae) is reported from South Africa for the first time. Previously this mite was a listed phytosanitary pest to South Africa, and entry of infested goods was prohibited. During a country-wide survey, B. lewisi was found on grapevine in the Western Cape and Northern Cape provinces. It has not been found in other provinces or on other crop ...
DOI:
10.4001/003.025.0523

11. First Report of Lioponera longitarsus Mayr, 1879 (Hymenoptera: Formicidae) in Algeria: An Exotic or a Rare Native Ant Species from North Africa?

Author:
Barech, G.; Khaldi, M.; Espadaler, X.
Source:
African entomology 2017 v.25 no.2 pp. 428-434
ISSN:
1021-3589
Subject:
Formicidae; agroecosystems; habitats; humans; olives; semiarid zones; Algeria
Abstract:
... Myrmecological investigations were conducted in an olive grove agro-ecosystem. Among the taxa we report the presence of the cryptic ant species Lioponera longitarsus, subfamily Dorylinae, for the first time in Algeria. Standard morphological measurements are presented for worker and queen. The discovery of this genus for the fourth time in North Africa in different habitats within a semi-arid clim ...
DOI:
10.4001/003.025.0428

12. Food Ingestion and Utilisation Efficiency of Legume Pod Borer, Maruca vitrata Geyer (Lepidoptera: Crambidae) on Different Pulse Hosts

Author:
Sambathkumar, S.; Durairaj, C.; Mohankumar, S.; Ganapathy, N.; Preetha, B.; Aravintharaj, R.
Source:
African entomology 2017 v.25 no.2 pp. 395-412
ISSN:
1021-3589
Subject:
Lablab; Maruca testulalis; adults; black gram; cowpeas; flowers; food consumption; food intake; hosts; ingestion; larvae; mung beans; pests; pigeon peas; pupation; rearing; sex ratio; survival rate; weight gain
Abstract:
... The legume pod borer, Maruca vitrata (Geyer) (Lepidoptera: Crambidae), is an important pest of pulses globally. The laboratory study investigated its development, survivorship and food intake on different pulses, namely pigeon pea (CO RG 6), black gram (CO BG 6), green gram (CO GG 7), cowpea (CO 7) and lablab (Rohini) in an environment of 27.9±2.2 °C and 76.6 ± 9.1%RH. The highest food consumption ...
DOI:
10.4001/003.025.0395

13. Ingestion Rate by Culex pipiens Larvae as a Factor in the Effectiveness of Different Bacillus sphaericus Strains

Author:
Tewfick, M.K.
Source:
African entomology 2017 v.25 no.2 pp. 375-386
ISSN:
1021-3589
Subject:
Bacillus sphaericus; Culex pipiens; exposure duration; ingestion; larvae; lethal concentration 50; mortality
Abstract:
... The role of Culex pipiens larval ingestion rate in the effectiveness of three Bacillus sphaericus strains, namely 2362, B1-634BNI and 6491 was assessed. Two concentrations, namely LC₅₀ and LC₈₀, were tested. Studied parameters included bacterial exposure time and mosquito larval density. Exposure time periods were 0.5, 1, 2, 4, and 24 h. Larval density varied by exposing different numbers of larva ...
DOI:
10.4001/003.025.0375

14. Insect Visitors of Lavender (Lavandula officinalis L.): Comparison of Quantitative and Qualitative Interactions of the Plant with Its Main Pollinators

Author:
Benachour, K.
Source:
African entomology 2017 v.25 no.2 pp. 435-444
ISSN:
1021-3589
Subject:
Anthidium; Apis mellifera; Bombus terrestris; Ceratina; Diptera; Lavandula angustifolia subsp. angustifolia; Pieris rapae; flowers; honey bees; inventories; pollen; pollinators; Algeria
Abstract:
... An inventory of insects visiting Lavandula officinalis flowers was established during three years (2009, 2010 and 2013) in a plot in the Constantine region (northeast Algeria). Three orders of insects were recorded on the flowers: Hymenoptera, Lepidoptera and Diptera. The majority (81 %) of taxa identified on the plant showed very low average abundances (≤1 individual/day) and 73 % of these taxa w ...
DOI:
10.4001/003.025.0435

15. Lavandula dentata Essential Oils: Chemical Composition and Larvicidal Activity Against Culiseta longiareolata and Culex pipiens (Diptera: Culicidae)

Author:
Dris, D.; Tine-Djebbar, F.; Soltani, N.
Source:
African entomology 2017 v.25 no.2 pp. 387-394
ISSN:
1021-3589
Subject:
Culex pipiens; Culiseta; Lavandula dentata; World Health Organization; bioassays; camphor; chemical analysis; essential oils; gas chromatography-mass spectrometry; hydrodistillation; insecticides; instars; larvae; larvicides; leaves; lethal concentration 50; lipid content; protocols; Algeria
Abstract:
... The current study was undertaken in order to determine the chemical composition of the leaf essential oils of Lavandula dentata L. (Lamiaceae) cultivated in Tebessa (Algeria) and to evaluate its potential larvicidal activity against fourth instar larvae of Culiseta longiareolata Macquart and Culex pipiens L. (Diptera: Culicidae). The essential oil content of L. dentata leaves obtained by hydrodist ...
DOI:
10.4001/003.025.0387

16. Morphology, Histology and Ovary Development of the Female Reproductive System of Spilostethus pandurus (Scopoli) (Hemiptera: Lygaeidae)

Author:
Elelimy, H.A.S.; Ghazawy, N.A.; Omar, A.H.; Meguid, A.A.
Source:
African entomology 2017 v.25 no.2 pp. 515-522
ISSN:
1021-3589
Subject:
Spilostethus pandurus; eggs; females; histology; light microscopy; oocytes; ovarian development; ovarioles; oviducts; pedicel; scanning electron microscopy; spermatheca
Abstract:
... The morphology and histology of the female reproductive system of Spilostethus pandurus (Hemiptera: Lygaeidae) were examined by light and scanning electron microscopy. The female has a pair of ovaries, each with seven meroistic telotrophic ovarioles, a pair of lateral oviducts, acommonoviduct, a spermatheca, and a genital chamber.Accessory gland was not visible. Each ovariole is composed of four m ...
DOI:
10.4001/003.025.0515

17. Quantifying Variation in the Shape of the Valvae in Thaumatotibia leucotreta (Lepidoptera: Tortricidae)

Author:
Rentel, M.; Gilligan, T.; Addison, P.
Source:
African entomology 2017 v.25 no.2 pp. 494-501
ISSN:
1021-3589
Subject:
Thaumatotibia leucotreta; crops; genetic variation; geometry; insects; male genitalia; morphometry; pests; principal component analysis; sexual selection; Southern Africa
Abstract:
... Recent studies have demonstrated that geographically isolated populations of Thaumatotibia leucotreta (Meyrick), an important pest of some crops in southern Africa, show minor genetic divergence. Because sexual selection can cause rapid evolution of male genitalia in insects, particularly in widespread, polyphagous species, differences in the morphology of these structures among different populati ...
DOI:
10.4001/003.025.0494

18. Strong Active Defensive Reaction of Late Instar Plutella xylostella (L.) (Lepidoptera: Plutellidae) Towards Cotesia vestalis (Haliday) (Hymenoptera: Braconidae) Correlates With Its Low Suitability for Parasitism

Author:
Nofemela, R.S.
Source:
African entomology 2017 v.25 no.2 pp. 454-461
ISSN:
1021-3589
Subject:
Cotesia; Plutella xylostella; daughters; eggs; females; hosts; instars; larvae; ovipositor; parasitism; parasitoids; wasps
Abstract:
... Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), larvae wriggle violently backwards when disturbed. As they vary greatly in size from 1.3mm in length of L1 instar to 12 mm of fully grown L4 instar, the 2.1 mm long female Cotesia vestalis (Haliday) (Hymenoptera: Braconidae) has to gain control of each host to insert ovipositor and lay an egg. This study tested the hypotheses t ...
DOI:
10.4001/003.025.0454