Variability in the spermathecal form of the three closely-related species ascribed to the Curtonotum cuthbertsoni species-group, cuthbertsoni complex, namely: C. cuthbertsoni Duda, C. saheliense Tsacas and C. simile Tsacas, is investigated. Pairs of spermathecae are illustrated photographically and their form compared intra- and interspecifically. The external form and shape are found to overlap in all three species. The spermathecae of C. simile are illustrated for the first time. While general trends in shape are noted, variation is overlapping, both between individuals of the same species and within pairs of spermathecae from the same specimen. It is concluded, therefore, that spermathecal form is not a useful character to distinguish females of the three species, and that the use of spermathecae as diagnostic characters in the genus Curtonotum Macquart, in general, must be viewed critically and with a high degree of scepticism.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.