ɐnˈʌðɚ haɪpˈɑːθəsˌɪs sədʒˈɛsts ðˌɐɾɪt mˈeɪ dɪskˈɜːɹɪdʒ tɚɹˈɛstɹɪəl ˈɑːɹθɹəpˌɑːdz fɹʌm skˈeɪlɪŋ ðə pˈɪtʃɚ ænd ɹᵻstɹˈɪkt ˈæksɛs tə ðə nˈɛktɚ spˈuːn tə flˈaɪɪŋ ˈɪnsɛkts, ðˈʌs pɹɪvˈɛntɪŋ ðə lˈɔs ʌv nˈɛktɚ tʊ ˈɪnsɛkts ðæt tˈɛnd tə stˈiːl nˈɛktɚ.
Another hypothesis suggests that it may discourage terrestrial arthropods from scaling the pitcher and restrict access to the nectar spoon to flying insects, thus preventing the loss of nectar to insects that tend to steal nectar.