ISBN 0-643-06304-8* Family Geometridae at Lepidoptera.pro* "Anacamptodes pergracilis", cypress looper on the University of Florida / Institute of Food and Agricultural Sciences "Featured Creatures" website* Geometridae species in Portugal* European Geometridae
ISBN 0-643-06304-8==External links==* Family Geometridae at Lepidoptera.pro* "Anacamptodes pergracilis", cypress looper on the University of Florida / Institute of Food and Agricultural Sciences "Featured Creatures" website* Geometridae species in Portugal* European Geometridae