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Andalasian International Journal of Entomology
Published by Universitas Andalas
ISSN : -     EISSN : 30262461     DOI : https://doi.org/10.25077/aijent.1.01.41-45.2023
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Andalasian International Journal of Entomology (AIJENT) mainly focuses on insects in agriculture, forestry, human and animal health. Detailed scopes of articles accepted for submission to AIJENT are study of the biosystematics, biology, physiology, behaviour, ecology, pest management, conservation, medical, molecular and evolution of insect. The journal very welcomes submission from all fields of pure and applied sciences.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Serangga
Articles 6 Documents
 1 
Search results for , issue "Vol. 4 No. 1 (2026)" : 6 Documents clear
Species Richness and Diversity of Butterflies in Nagaland, North East Region of India Yojana Patil; Shruti Kulkarni
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.1-10.2026

Abstract

The Northeast region of India is a hotspot of biodiversity, boasting one of the richest butterfly diversities in the Oriental region, particularly in endemic species. The Nagaland region, located in the north-eastern part of India, is renowned for its rich biodiversity. The place has a montane ecosystem, which means the butterflies here differ from those in other mountain terrains and remain understudied. The study focuses on cataloging and monitoring butterfly species from Aug 2021 to Aug 2023 in and around Nagaland. The survey is done by the simple checklist method. Observation is done using a simple visual method; data collection is via the transect method. The transect distance range was mainly 500 m to 1.5 km along the roadside or streamside. A total of 64 species of 6 families were recorded during the study. Among 6 families, Hesperiidae (8), Lycaenidae (10), Papilionidae (11), Pieridae (9), Nymphalidae (25), and Riodinidae (1) species were found in the study area. The study shows that the region is rich in butterfly diversity but understudied and in need of updated documentation. Therefore, continuous monitoring, research, and updating are significant for conservation and for mitigating the effects of changing climatic patterns and anthropogenic activities on butterfly diversity.
DNA Barcoding and Phylogenetic Placement of Selected Freshwater Nepomorpha (Hemiptera: Heteroptera) from Southern India Based on COI Sequences Hebbal Rajendra Abhilash; Malliah Mahadevaswamy; Charles Sylvester
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.11-20.2026

Abstract

Aquatic Hemipterans are ecologically significant predators in freshwater ecosystems, yet species-level identification is often challenging due to morphological similarity and life-stage variation. This study employed mitochondrial cytochrome c oxidase subunit I (COI) barcoding to identify taxa and evaluate phylogenetic relationships among four freshwater bug specimens (Laccotrephes maculatus (n=1), Ranatra filiformis (n=1), Diplonychus rusticus (n=1), Notonectidae sp. (n=1)) collected from three suburban lakes in Mysore, India. Preliminary identification using taxonomic keys was followed by COI amplification, sequencing (~550 bp), and Maximum Likelihood phylogenetic analysis. Genomic DNA was extracted using the QIAGEN DNeasy Ultra Clean Microbial Kit (Cat. No. 12224-50) according to the manufacturer's protocol. The nucleotide divergence was highest in L. maculatus, followed closely by R. filiformis, and lowest in D. rusticus. Phylogenetic clustering corroborated morphological identifications, with three taxa grouping with regional conspecific isolates, while the Notonectidae specimen clustered with Kenyan isolates.  Overall, the findings demonstrate the effectiveness of COI barcoding in resolving taxonomic ambiguities and elucidating evolutionary relationships among freshwater hemipterans, highlighting its utility as a complementary tool to traditional morphology-based identification in biodiversity assessments.
Seasonal Population Fluctuation and Sex Ratio of Frankliniella occidentalis on Greenhouses Melon in Arid Southeastern of Algeria, North Africa Farid Allache; Fatma Demnati; Sabah Razi
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.21-30.2026

Abstract

The western flower thrips, Frankliniella occidentalis (Pergande 1895), is a polyphagous and invasive pest that causes serious damage to greenhouse crops. The present study aimed to examine the population changes, relative abundance, sex ratio, and species composition of thrips associated with melon (Cucumis melo L.) cultivated under greenhouse conditions in Garta, Algeria. Populations of F. occidentalis were monitored weekly from February to June 2017. Thrips densities increased with temperature; however, correlations with temperature (r = 0.54–0.55, p > 0.05) and relative humidity (r = 0.10–0.24, p > 0.05) were weak and not significant. Adults predominated on leaves, while larvae were less abundant (mean 7.44 per 30 leaves). High relative abundance was recorded across all sampling methods. Females largely predominated, accounting for 90.81–91.28% of adults, corresponding to a male-to-female ratio of approximately 1:9. Six thrips species were identified from the melon crop, with F. occidentalis being the dominant species. The other species included Odontothrips loti, Aeolothrips intermedius, Thrips minutissimus, Melanthrips fuscus, and Chirothrips manicatus, along with a few tubuliferous individuals. These results provide new insights into the population dynamics of F. occidentalis under arid greenhouse conditions and contribute to a better understanding of its prevalence in North African cropping systems.
Altitudinal Variation in Trap-Based Abundance of Bactrocera dorsalis in Red Chili Fields of West Sumatra, Indonesia Phước Sang Nguyễn; Novri Nelly; Reflinaldon
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.31-39.2026

Abstract

Altitudinal gradients strongly influence the distribution and abundance of insect pests by affecting microclimate, host availability, and cropping intensity. Bactrocera dorsalis (Hendel) is a major constraint to red chili (Capsicum annuum L.) production in Indonesia; however, empirical evidence linking altitude to its field abundance in Sumatra has not been fully elucidated. This study quantified the association between altitude and the abundance patterns of B. dorsalis using field data collected from 33 chili-growing sites across four regencies of West Sumatra, Indonesia, spanning elevations from <15 to 1,571 m above sea level, during the rainy season (October 2024-March 2025). Adult flies were monitored using methyl eugenol-baited modified Lynfield traps. Catch data were analyzed across altitudinal zones using ANOVA, correlation, and linear regression. Trap catches differed significantly among elevation categories (p< 0.05), with higher mean abundance generally recorded in pre-montane sites (>600 m) than in lowland sites (<600 m). Regression analysis indicated a positive association between altitude and trap catches (r = 0.391, p = 0.024), with altitude explaining 15.3% of the variation in abundance (R2 = 0.153), and linear regression indicated a moderate increase in captures with increasing elevation (B = 0.103). K-means clustering of regencies based on mean elevation and total trap catches further separated Solok as a distinct group characterized by higher abundance. These findings demonstrate spatial structuring of B. dorsalis abundance across elevation zones and support the incorporation of elevation-informed surveillance into fruit fly monitoring programs in West Sumatra.
Diversity of Soil Surface Arthropods in Raspberry (Rubus idaeus L.) Plantations in Cisarua, West Bandung District, West Java Province Yani Maharani; Delvino Eka Praditya Setyadharma; Luciana Djaya; Rika Meliansyah; Muhamad Kadapi
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.40-54.2026

Abstract

Raspberries are exotic fruits from the Rosaceae family that are in high demand among the public. Information on plant pest organisms and the diversity of arthropods associated with raspberry plants is needed to develop raspberry cultivation in Indonesia. This research aims to study the diversity of arthropods in raspberry plantations in Cisarua District, West Bandung Regency, West Java Province. The research was carried out using a survey method on land measuring 25 x 2.5 meters at an altitude of 1126 meters above sea level (masl). Sampling was carried out using yellow sticky traps, pitfall traps, knockdown methods, flying insect nets, and six direct observations. The observations yielded 1170 arthropods across 9 orders, 40 families, and 55 genera. The diversity index value is categorized as medium and tends to be high (H' = 2.99); the evenness index value is categorized as high (E = 0.75); and the dominance index value is low (C' = 0.09). Based on their ecological function, the arthropods obtained are grouped as decomposers, herbivores, natural enemies (predators and parasitoids), and pollinators. The largest group of decomposer arthropods comes from the Psychodidae family; the most herbivorous come from the Aleyrodidae family; the most natural enemies come from the Chloropidae and Araneidae families; and the most pollinators come from the Tipulidae family. The values obtained indicate the stability of the raspberry planting ecosystem, with no dominant individuals.
Larvicidal Efficacy of Abamectin–Pyriproxyfen Mixtures Against Musca domestica in a Poultry Farm: A Field Evaluation Cesar Daseco Alamil Jr.; Listya Purnamasari; Meriam C. Lauron; Joseph F. dela Cruz
Andalasian International Journal of Entomology Vol. 4 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.4.1.55-62.2026

Abstract

The house fly, Musca domestica, is a notorious veterinary pest that has developed resistance to insecticides. One approach to address this concern is by mixing insecticides to overcome resistance and accelerate pest management. This study was conducted to evaluate the larvicidal efficacy of the abamectin and pyriproxyfen binary mixture against M. domestica larvae, based on its ability to reduce larval populations and inhibit pupal formation. The study was conducted in the UPLB VTH Experimental Poultry House. Forty-five boxes, each containing 500 larvae, were distributed across five treatment groups, with nine replicates per treatment. The treatments consisted of distilled water (T1), low-concentration pyriproxyfen (T2), high-concentration pyriproxyfen (T3), low-concentration abamectin-pyriproxyfen binary mixture (T4), and high-concentration abamectin-pyriproxyfen binary mixture (T5). The treatments were applied to each box on days 0 and 7, and the number of live larvae and pupae was recorded on days 7 and 14. On day 7, T5 achieved the highest larval reduction of 88.49%, which was significantly higher than the other treatments. By day 14, T3, T4, and T5 exhibited comparable larval reduction with no significant differences among them. In terms of day 7 pupal inhibition, T5 had the highest inhibition at 95.75%, followed closely by T3 and T4, with no significant difference among the three. By day 14, T5 again had the highest effect at 95.26%, with T3 and T4 also showing similarly strong results. The results of this study highlight the potential of the abamectin-pyriproxyfen binary mixture as a tool in managing house fly populations. However, the lack of significant differences between the binary mixture and the high-concentration pyriproxyfen suggested that the enhanced efficacy was not substantial.

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