sˌʌm zˈɛnoʊɡlˌɔsə spˈiːsiːz hæv bɪkˌʌm mˌɔːɹfəlˈɑːdʒɪkli spˈɛʃəlˌaɪzd tə flˈaɪ wˌaɪl ɪɾ ɪz stˈɪl dˈɑːɹk, wɪð ɡɹˈeɪtli ɛnlˈɑːɹdʒd ɑːkˈɛli tʊ ɐlˈaʊ ðˌɛm tə flˈaɪ ɪn nˌɪɹdˈɑːɹknəs.
Some Xenoglossa species have become morphologically specialized to fly while it is still dark, with greatly enlarged ocelli to allow them to fly in near-darkness.