ISCEP 2026 At Sunway Putra Hotel 17-18 August 2026
ABSTRACT
POSTER PRESENTATION ABSTRACT
P25
COMPARATIVE DEVELOPMENTAL STABILITY OF CHRYSOMYA NIGRIPES AND BOETTCHERISCA HIGHLANDICA IN LONG-TERM LABORATORY COLONIES: IMPLICATIONS FOR FORENSIC CHRONOLOGY, PUBLIC HEALTH, AND URBAN SUSTAINABILITY
Hillarian MOJIUN, Roziah ALI", Bekcham Tan Chia HUNG, Khairul Asuad MOHAMED, Azahari ABD HADI, Johnnetha John GINDABAL, Novita AMHAR
Medical Entomology Unit, Infectious Disease Research Centre, Institute for Medical Resea of Health Ministry of Health, Selangor, Malaysia
ABSTRACT
Accurate estimation of the minimum post-mortem interval (PMI) and monitoring disease vectors in Southeast Asia require precise developmental models for niche-specific flies. While common species like Chrysanya megacephala are well-documented, the late-colonising Chrysomya nigripes and the highland-specialist Boettcherisca highlandica remain under characterised, particularly regarding developmental stability across hundreds of generations. This study aimed to determine the developmental kinetics of C. nigripes and B.highlandica in standardised laboratory environments and evaluate the biological reliability of long-term colonies F31 and F12, respectively) for forensic and public health applications Laboratory colonies were maintained under controlled conditora (258TC and 70% 10 RH). Developmental durations for each life stage-egg-to-L. L1-to-L2 L2-to-L3, L3-10- pupa, and pupe-to-adult-were recorded across multiple filial generations. Data were synthesised to establish species-specific growth constants. Boettcherisca highlandica demonstrated a significantly more protracted lifecycle (maan 1755 1.5 days) compared to C. nigripes (mean 13.44 1.2 days). The most significant temporal divergence was observed during the intra-puparial period, where B. highlandica (7.85 days) exceeded C. nigripes (5.44 days) by over 44% Despite the high number of generations (F121 for B. highlandica), developmental rates remained remarkably consistent, supporting the validity of using established laboratory strains for forensic modelling. These findings provide essential baseline data for precise forensic reconstruction in tropical urban and montane ecosystems. Furthermore, the role of these species as bioindicators of environmental health and potential vectors for zoonotic pathogens highlights their significance in the broader context of ben sustainability and public health protection.
Keywords: Chrysonry nigripes Boenchesca highandica minimempost-mertens interval urban
INTERNATIONAL SCIENTIFIC CONFERENCE ON ENTOMOLOGY AND PEST SCEP) 2005