sanguinea could distinguish the pupae of F. fusca, which they habitually make into slaves, from those of the little and furious F. flava, which they rarely capture, and it was evident that they did at once distinguish them;
sanguinea espeziea gai ote zen esklabu egin ohi duen F. fusca espezieko ninfak, oso gutxitan harrapatzen dituzten F. flava espezie txiki eta koleratsuko ninfengandik bereizteko, eta agerian geratu zen berehala bereizteko gai zirela;