Insects Feeding
on these Plants:
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Sonchus spp. (Sow-Thistle) [Asteraceae]
(observations are from Hottes & Frison, Cranshaw, Felt, Blackman & Eastop, Pepper, Spencer & Steyskal, Nakahara)
Diptera (Flies)
Agromyzidae: Amauromyza maculosa [larvae are blotch leaf-miners; widespread] SS1986, Chromatomyia lactuca [larvae are leaf-miners; found in Michigan, New York, Pennsylvania, Maryland, & Canada] SS1986, Chromatomyia syngenesiae (Chrysanthemum Leafminer) [larvae are leaf-miners; found in Massachusetts & Canada] SS1986, Liriomyza endiviae [larvae are blotch leaf-miners; found in Maryland] SS1986, Phytoliriomyza arctica [larvae bore through stems; widespread] SS1986
Homoptera (Sucking Insects)
Aphididae: Aphis coreopsidis [found on young shoots & leaves of Black Gum, migrating during the summer to various herbaceous plants] BE2013, Aphis fabae (Black Bean Aphid) [polyphagous] Pp1965, Aphis rumicis (Dock Aphid) [polyphagous] HF1931, Capitophorus flaveola HF1931, Hyperomyzus lactucae (Currant-Sowthistle Aphid) [found on leaf undersides of Ribes spp., migrating during the summer to the upper stems & inflorescences of sow-thistles] HF1931 BE2013, Hyperomyzus pallidus [found on the leaf undersides of Ribes spp., migrating during the summer to the undersides of lower sow-thistle leaves; this aphid was introduced into North America from Eurasia] BE2013, Pemphigus bursarius (Poplar-Lettuce Aphid) [forms yellowish or reddish galls on the petioles of poplar leaves, migrating during the summer to the roots of herbaceous plants in the Asteraceae; this aphid is found in north-central & NE USA] Crw2004 BE2013, Uroleucon ambrosiae (Brown Ambrosia Aphid) [possible misidentification of aphid species, which is usually found on ragweed] HF1931 Pp1965, Uroleucon pseudambrosiae (False Ambrosia Aphid) Crw2004, Uroleucon sonchellum [found on leaves & stems; this aphid is widely distributed in North America, where it is native] BE2013, Uroleucon sonchi (Large Sowthistle Aphid) [sow-thistle is the preferred host; this Eurasian aphid has been found in NE USA & SE Canada, including Illinois] BE2013 Pp1965
Hymenoptera (Bees, Wasps, & Sawflies)
Cynipidae: Aulacidea tumida (Lettuce Tumor Gall Wasp) [syn. Aulacidea tumidus, larvae live in stems, causing irregular swellings] Flt1917
Thysanoptera (Thrips)
Thripidae: Thrips trehernei [polyphagous] Nk1994