Two species of syrphids were found in aphid colonies on ornamental plants: Episyrphus balteatus (De Geer) under greenhouse conditions and Scaeva pyrastri (L.) in the field. Among ladybirds the most common in aphid colonies on ornamental plants were Coccinella septempunctata and A. bipunctata (L.), whereas Coccinella quinqepunctata L. and Exochomus quadripustulatus L. appeared rarely. Also the invasive lady beetle – Harmonia axyridis (Pallas) was found on dog-wood for the first time in Skierniewice. Larvae of beetle – Anthribus nebulosus Forster from the Anthribidae family were found under the body of Physokermes piceae – pest of white spruce, later adult individuals were also observed on bushes. Predatory thrips – Scolothrips longicornis Priesner were found for the first time in Poland on white spruce infested by Oligonychus ununguis (Jacobi). On ornamental grasses predatory thrips – Aeolothrips fasciatus (L.). were recorded in sweep-net samples. In coniferous nurseries the following spiders occurred with a high frequency: Araneus diadematus Clerck and Agriope bruennichi (Scopoli, 1772) from Araneidae family. Two other spider species Araneus quadratus (Clerck) from Araneidae family and Nigma walckenaeri (Roewer) from Dictynidae family were also present but rare on deciduous bushes.
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