Published online by Cambridge University Press: 10 July 2009
Standard text-books on entomology (Imms, 1957; Ross, 1956) state that the insects of the order Thysanoptera feed by macerating leaf tissue with pointed stylets, and then suck the juices thus released by applying their mouth cone to the leaf surface.The drawings accompanying these statements indicate that the maxillary stylets and the single mandible are all simple acute needle-like structures. However, sections of the mouth cone including the stylets show that the mandible is a closed tubular structure, and that the maxillary stylets are grooved, i.e., C-shaped in section (Reyne,1927; Mickoleit, 1963). Moreover, Grasse (1951) states that although the maxillary stylets do not show the mutual adaptations found in the Hemiptera they do form a tube when fitted together, and Grinfel'd (1959) suggests that thrips may suck food through the tube formed by the stylets in addition to applying the mouth cone directly onto the food.
To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.
To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.