Insects Feeding
on these Plants:


Elymus spp.
(Wild Rye) [Poaceae]
(Observations are from DeLong, Rider, Hottes & Frison, Microleps website, Covell, Needham et al., Felt, Blackman & Eastop, Robinson & Bradley, Spencer & Steyskal, Braun, Natural History Museum, Panzer et al., ScaleNet)

Diptera (Flies)
Agromyzidae: Cerodontha dorsalis (Grass Sheath Miner) [larvae are leaf-miners, pupating in sheaths; widespread] SS1986; Cecidomyiidae: Mayetiola destructor (Hessian Fly) [larvae are found under leaf sheaths] Flt1917

Heteroptera (True Bugs)
Pentatomidae: Brochymena quadripustulata (Four-Humped Stink Bug) [polyphagous] Rid2009

Homoptera (Sucking Insects)
Aphididae: Carolinaia howardii [found on poison ivy as the primary host, migrating during the summer to feed on various grasses] BE2013, Carolinaia rhois [found on sumac shrubs as the primary hosts, migrating during the summer to the inflorescences of various grasses] BE2013, Diuraphis tritici (Western Wheat Aphid) [curls grass leaves; found in Illinois, but mostly distributed in W USA] BE2013, Periphyllus negundinis HF1931, Schizaphis graminum (Greenbug) RB1965, Sipha elegans [found on upper sides of grass leaves, causing them to roll upward & develop yellow patches; this aphid occurs in Illinois, it is also found in Eurasia] BE2013, Sitobion avenae (English Grain Aphid) RB1965; Cicadellidae: Dorycara platyrhynchus Dlg1948, Elymana acuma [found in shaded areas; syn. Elymana acrita] Dlg1948 Pnz2006, Sorhoanus orientalis [found in open woodlands] Dlg1948; Pseudococcidae:
Trionymus caricis (Carex Mealybug) [found underneath leaf sheaths; this insect occurs in Maryland, Massachusetts, Tennessee, & elsewhere in the USA] SN2014

Hymenoptera (Bees, Wasps, & Flies)
Cephidae: Cephus cinctus (Grass-Stem Sawfly) [larvae bore through stems] Flt1917; Eurytomidae: Tetramesa elymi (Wild Rye Jointworm) [larvae probably live in stems] Flt1917, Tetramesa tritici (Wheat Jointworm) [larvae live in stems] Flt1917

Lepidoptera (Butterflies, Skippers, & Moths)
Elachista epimicta [larvae are blotch leaf-miners of overwintering basal leaves; this moth is found in Ohio] Mic2010 Br1948 NHM2010, Elachista illectella [larvae are leaf-miners of many grass species; this moth is found throughout NE USA & Ontario; syn. Cosmiotes illectella] Mic2010 Ndm1928 Br1948 NHM2010, Elachista leucofrons [larvae are leaf-miners; Canada Wild Rye & Virginia Wild Rye are preferred hosts] Ndm1928 NHM2010, Elachista praelineata [larvae are leaf-miners; this moth is found in Ohio; Bottlebrush Grass is the preferred host] Br1948 NHM2010; Noctuidae: Leucania pseudargyria (False Wainscot) Cv2005 NHM2010, Mythimna unipuncta (True Armyworm) [syn. Pseudaletia unipuncta] NHM2010