A longitudinal study in under constructing Manholes (considered as mosquito breeding trap of the study area) in a newly constructing road in the ward number 35 was conducted in the post monsoon period of 2016. Four species of mosquito population were available in the stagnant water of temporary breeding sites. Among them Cx. quinquefasciatus was the dominant species (98.6%) followed by Cx. tritaeniorhynchus (0.5%), Ar. subalbatus (0.5%) and Cx. fuscocephala (0.4%). Though the breeding sites were temporary and stayed until finishing the construction, yet the results indicated the abundant population of available mosquitoes including status of key species in the urban area of the city corporation.

The embryonic proteomics that drift in the adult stage and responsible for performing visual activities including, biting and maintaining the vectorial life of dengue vector Aedes albopictus is not projected earlier. In a series of experiments we have indicated the concentration and extension of early proteomic cursors in the latter stages of life cycle up to the early emerging adult. We noticed about 70% gain of protein during larval developmental stages, until pupation. Newly emerged adult mosquitoes lost about 12% of protein than the pupal stage. In case of peptides, we observed 14-26 polypeptide bands during immature and early adult stages by using 12% of separating gel in ID SDS-PAGE. The bands in early larval stages up to 4th instar larvae were in the range of approximately ~58 to ~7 kDa, while in pupal and adult stages they were between ~200 and ~7 kDa. Newly emerged bands in pupal (i and ii) and adult (iii-vi) stages could be identified as stage specific peptides. The band number 10, which migrated at the same position in the PAGE with equal strength in all stages was identified as an essential peptide. Characterization of the above peptides might help in the pin pointing to possible virus transmission blocking mechanism of this vector insect.Bangladesh J. Zool. 45(2): 171-183, 2017

With global expansion of vector borne diseases, dengue has emerged as a big health crisis and social problem in recent years in Bangladesh. Despite its endemicity since 2000, very few studies were conducted outside of the Capital Dhaka city regarding vector breeding status. Within this dark situation, the year 2019 reported the ever highest number of dengue cases of 101,354. Of them about 50% were from out of Dhaka. To reduce this burden, keeping the vector population density under threshold level is must. In the present entomological study, 100 houses were checked randomly from five areas of Gazipur City Corporation (GCC) during the month of September in 2019. Both of the Aedes vectors were found in all areas, but Aedes aegypti population was dominant. Rooftop garden and under construction site were identified as the most important vector breeding sites. Highly urbanized area (SA2) produced the highest and suburban area (SA4) produced the lowest Breteau Index (BI) of 110 and 15 respectively. The overall House Index (HI) and Breteau Index (BI) of the study areas were 16 and 49 respectively. Four kinds of containers, namely; cemented tank, drum, big earthen pot (chari) and buckets contained about 80 percent of immature Aedes and identified as key container among the positive containers. The Said study has identified comparatively higher number of Ae. aegypti breeding, which is potential for triggering any major outbreak. Further, large-scale surveillance in all administrative wards with a larger sample may indicate the real picture of vector infestation situation throughout the municipality. Bangladesh J. Zool. 49(1): 69-82, 2021

Coccids are amongst the most destructive pests of horticultural, agricultural, household ornamental plants, and wild plants in varying degrees. To evaluate the prevalence of its fauna in Jahangirnagar University Campus (JUC), Savar, Dhaka, Bangladesh, a year-long study was conducted from September 2004 to August 2005, by visual counting in regular fortnightly visits. A total of 99755 insects of 13 coccid species were recorded from 12 study sites. They infested 41.2% plants of 786 individuals under 17 host plant species. Coccid incidence varied greatly according to seasons, plant numbers, and study sites. Significant differences were observed in the mean number of coccid fauna (F = 3.87, df = 12, P < 0.05) in different study sites. The highest infestation was observed by Ferrisia virgata followed by Chloropulvinaria pisdii, Planococcus pacificus, Perissopneumon ferox, Icerya aegyptiaca, Aspidiotus destructor, Crypticerya jacobsoni, Icerya minor, Rastrococcus spinosus, Pseudococcus citriculus, Maconellicoccus hirsutus, Cerococcus indicus, and Coccus hesperidum. The total number of plants present in the study sites was positively correlated with the total infested plants (r = 0.451). Highly infested plants attracted more insects than less infested plants (r = 0.813). The coccid population started to increase after the winter season and maintained a steady level up to the end of the rainy season (March to August). All study sites contained insect populations but SS-6, 7, 8, and 10 harbored significantly higher numbers of them. Rain did not make any significant differences (F = 1.445, df = 11, P = 0.168) in the pest infestation. The mean number of coccids at different months was positively correlated with the monthly average temperature (r = 0.390) and relative humidity (r = 0.412). The present findings may help in designing an integrated coccid management system. Bangladesh J. Zool. 50 (1): 67-82, 2022