ORIGINAL RESEARCH ARTICLE | Sept. 21, 2026
Comparative Nest-Site Use and Nest Architecture of Polistes flavus and Vespa orientalis in District Mardan, Khyber Pakhtunkhwa, Pakistan
Shah Saud, Umar Ali, Ammara Gauhar, Nadeem Jamal, Junaid Khan, Umair Khan, Hazrat Bilal, Masood Shah
Page no 537-545 |
https://doi.org/10.36348/sjls.2026.v11i09.001
Social wasps select nesting environments that must simultaneously support attachment, brood protection, colony growth and access to resources. This study compares documented nest-site use and nest architecture of the paper wasp Polistes flavus and the Oriental hornet Vespa orientalis in four localities of District Mardan, Khyber Pakhtunkhwa, Pakistan: Lund Khwar, Katlang, Shergarh and Takht Bhai. Field observations combined non-destructive photographic documentation with selective colony collection after gentle smoking, followed by laboratory examination of nests and specimens. The source manuscript reports 16 colonies; however, the supplied row-level field table contains 16 individually documented colonies, eight per species, and quantitative frequencies in this revision are therefore calculated from those 16 records. Polistes flavus was recorded primarily on trees (6/8 colonies), with the remaining colonies on buildings (2/8), whereas Vespa orientalis occurred mainly in underground cavities (4/8) and buildings (3/8), with one colony on a tree. Correspondingly, six of eight P. flavus records were coded as natural sites, while six of eight V. orientalis records were coded as man-made. The reported lower-bound colony counts were substantially higher for V. orientalis (median 215; range 150-350) than for P. flavus (median 45; range 25-90), although these values are approximate because the field log used '+' notation. Nest architecture also differed: P. flavus was described as producing open, non-enveloped, usually single-comb nests 9-20 cm long, while V. orientalis produced larger, enveloped, multi-comb nests 20-30 cm long. Both species used paper-like material and hexagonal brood cells. The observations support clear species-level differences in documented nest-site use and architecture, However, habitat preference could not be confirmed because the availability of alternative nesting substrates was not assessed. Future studies should evaluate nest-site availability, microclimate, nest dimensions, and seasonal occupancy.