Abstract
One hundred nine species of phytophagous insects from 6 orders and 33 families fed or reproduced on the thistle, Carduus macrocephalus Desfontaines, a biennial or winter annual in Italy. About ½ the species attacking this plant were polyphagous. Fifteen species were restricted to the tribe Cynareae; and another 16 species were restricted to the subtribe Carduniae. Only 42 of the 109 species were endophagous. Among species host specific enough to permit consideration as biological control agents, only Psylliodes chalcomera (Illiger), Ceuthorrhynchidius horridus (Panzer), and Rhinocyllus conicus (Frolich) have been studied; Ceutorhynchus trimaculatus (F) and Cheilosia grossa (Fallen) are being studied; and Urophora stolstitialis (L.), U. sibynata Rondani, Cheilosia cynocephala Loew, Epiblema pflugiana Haworth, and Agromyza n.sp. near reptans should be studied.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
