Recent studies suggested that accurate species identification in the tropical anguillid eels based on morphological examination requires confirmation by molecular genetic analysis. Previous studies found that two tropical anguillid eels, Anguilla bicolor bicolor and A. bengalensis bengalensis, were found in peninsular Malaysia (West Malaysia) based on morphological and molecular genetic analyse...

in this study, two aphid species i.e. macrosiphoniella vallesiacae jörg & lample, 1988 on artemisia aucheri and a. sieberi and uroleucon pilosellae (börner, 1933) (hem.: aphididae) on scorzonera sp. were collected which are reported here for the first time from iran. the biometric data of the iranian populations of these two aphid species are given. an identification key to the apterous vivipar...

current study was initiated to generate the information on the effect of row-to-row distance of brassica crop, brassica napus l., on aphids population. three line spacing (20, 30 and 40 cm) with a constant nine cm plant to plant distance were evaluated on aphids infestation and its impact on seed yield. the collected and edited data on fixed parameters indicated that an inverse relation was fou...

abstract parasitic insects face many decisions when foraging for host, some for example frequently have to make decisions with regard to staying in or leaving their current patch. in this study, we investigated how the foraging and oviposition behavior of lysiphlebus fabarum is influenced by (1) a female’s previous experience of encountering aphids host and (2) age of female parasitoids. to tes...