. Bulletin. Natural history; Natural history. 210 IlIFNOIS XaTIRAL HiSTOHY SlIiVEV females have been descriljed and fissured by Smith (lS!iO) and Gil' lette (lOOiSb). The sexual forms are unknown. We have records of this species only from Carbondale (May 14) and Herod (May 31), 1928, both times upon Prunus Fig. 25. Curling of leaves of peach, Prunus Persica. caused hy Aphis padi Linnaeus; Urbana. Oct. 7. 1929. APHIS POMI DeGeei! Fi(i. 14 Aphis poiiii DeGeer, Memoires pour servir a I'histoire des Insectes. Tome III, 1773, p. 53, PI. 3, fig. 20. Because the green apple aphid
. Bulletin. Natural history; Natural history. 210 IlIFNOIS XaTIRAL HiSTOHY SlIiVEV females have been descriljed and fissured by Smith (lS!iO) and Gil' lette (lOOiSb). The sexual forms are unknown. We have records of this species only from Carbondale (May 14) and Herod (May 31), 1928, both times upon Prunus Fig. 25. Curling of leaves of peach, Prunus Persica. caused hy Aphis padi Linnaeus; Urbana. Oct. 7. 1929. APHIS POMI DeGeei! Fi(i. 14 Aphis poiiii DeGeer, Memoires pour servir a I'histoire des Insectes. Tome III, 1773, p. 53, PI. 3, fig. 20. Because the green apple aphid is wiilely distributed throuijhout the world and ofteit a serious pest of ajiples, it has been the sub- ject of many extensive investigations. Until rather recent years, it was known as .1. iiiali Fa1)ricius, but at the ]iresent time the prior name of poiiii is in use. The recognized presence of f^oiiii in Illinois certainly dates back to Thomas (1S7!1). and it is ]iossible that some of the Illinois material recorded by F"itch (];).">) belonged to this species. Davis (IDlile) recorded it from Illinois as "common and often deslructive pest of the ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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