| Subject Name |
Scientific Name |
Host Plant |
Number of Records |
| bindweed gall mite | Aceria malherbae Nuzzaci, 1985 |
field bindweed |
60 |
| sulfur knapweed root moth | Agapeta zoegana (Linnaeus) |
spotted knapweed |
90 |
| sulfur knapweed root moth | Agapeta zoegana (Linnaeus) |
leafy spurge |
1 |
| sulfur knapweed root moth | Agapeta zoegana (Linnaeus) |
diffuse knapweed |
2 |
| sulfur knapweed root moth | Agapeta zoegana (Linnaeus) |
knapweeds |
24 |
| defoliating hemlock moth | Agonopterix alstroemeriana (Clerck) |
poison-hemlock |
6 |
| St. John's wort beetle | Agrilus hyperici (Creutzer, 1799) |
common St. Johnswort |
1 |
| flea beetle | Altica carduorum (Guérin-Méneville, 1858) |
Canada thistle |
6 |
| brown dot leafy spurge flea beetle | Aphthona cyparissiae (Koch, 1803) |
leafy spurge |
59 |
| black leafy spurge flea beetle | Aphthona czwalinae Weise, 1888 |
leafy spurge |
18 |
| copper leafy spurge flea beetle | Aphthona flava Guillebeau, 1894 |
meadow knapweed |
1 |
| copper leafy spurge flea beetle | Aphthona flava Guillebeau, 1894 |
leafy spurge |
614 |
| brown-legged spurge flea beetle | Aphthona lacertosa (Rosenhauer, 1847) |
leafy spurge |
802 |
| black dot spurge flea beetle | Aphthona nigriscutis Foudras, 1860 |
leafy spurge |
2072 |
| flea beetles | Aphthona spp. Chevrolat, 1836 |
leafy spurge |
300 |
| St. John's Wort Inchworm | Aplocera plagiata (Linnaeus) |
common St. Johnswort |
8 |
| broad-nosed knapweed seedhead weevil | Bangasternus fausti Reitter, 1890 |
spotted knapweed |
180 |
| broad-nosed knapweed seedhead weevil | Bangasternus fausti Reitter, 1890 |
squarrose knapweed |
2 |
| broad-nosed knapweed seedhead weevil | Bangasternus fausti Reitter, 1890 |
diffuse knapweed |
88 |
| yellow starthistle bud weevil | Bangasternus orientalis (Capiomont, 1873) |
yellow starthistle |
21 |
| toadflax flower-eating beetle | Brachypterolus pulicarius (Linnaeus, 1758) |
Dalmatian toadflax |
19 |
| toadflax flower-eating beetle | Brachypterolus pulicarius (Linnaeus, 1758) |
yellow toadflax |
14 |
| rush skeletonweed root moth | Bradyrrhoa gilveolella (Treitschke, 1832) |
rush skeletonweed |
28 |
| broom seed beetle | Bruchidius villosus (Fabricius, 1792) |
Scotch broom |
3 |
| Toadflax Brocade | Calophasia lunula (Hufnagel) |
yellow toadflax |
6 |
| Toadflax Brocade | Calophasia lunula (Hufnagel) |
dalmatian toadflax |
1 |
| Toadflax Brocade | Calophasia lunula (Hufnagel) |
Dalmatian toadflax |
16 |
| thistle tortoise beetle | Cassida rubiginosa Müller, 1776 |
musk thistle |
21 |
| thistle tortoise beetle | Cassida rubiginosa Müller, 1776 |
Canada thistle |
295 |
| thistle tortoise beetle | Cassida rubiginosa Müller, 1776 |
plumeless thistle |
1 |
| Canada thistle stem mining weevil | Ceutorhynchus litura (Fabricius, 1775) |
Canada thistle |
496 |
| Canada thistle stem mining weevil | Ceutorhynchus litura (Fabricius, 1775) |
musk thistle |
1 |
| knapweed peacock fly | Chaetorellia acrolophi White & Marquardt |
spotted knapweed |
6 |
| clearwing moth | Chamaesphecia empiformis Esper 1783 |
leafy spurge |
4 |
| musk thistle flower fly | Cheilosia corydon (Harris) |
musk thistle |
1 |
| musk thistle flower fly | Cheilosia corydon (Harris) |
Italian plumeless thistle |
2 |
| St. Johnswort beetle | Chrysolina hyperici (Forster, 1771) |
common St. Johnswort |
8 |
| klamathweed beetle | Chrysolina quadrigemina (Suffrian, 1851) |
common St. Johnswort |
9 |
| leaf beetle | Chrysolina spp. Motschulsky 1860 |
common St. Johnswort |
31 |
| Russian thistle moth | Coleophora klimeschiella Toll 1952 |
Russian-thistle |
28 |
| Russian thistle stem miner | Coleophora parthenica Meyrick |
halogeton |
2 |
| Russian thistle stem miner | Coleophora parthenica Meyrick |
Russian-thistle |
2 |
| lace bug | Corythucha distincta Osborn & Drake, 1916 |
Canada thistle |
2 |
| knapweed root weevil | Cyphocleonus achates (Fahraeus, 1842) |
diffuse knapweed |
66 |
| knapweed root weevil | Cyphocleonus achates (Fahraeus, 1842) |
knapweeds |
21 |
| knapweed root weevil | Cyphocleonus achates (Fahraeus, 1842) |
spotted knapweed |
815 |
| skeletonweed gall midge | Cystiphora schmidti (Rubsaamen) |
rush skeletonweed |
11 |
| Mediterranean tamarisk beetle | Diorhabda elongata (Brulle, 1832) |
saltcedar |
8 |
| Mediterranean tamarisk beetle | Diorhabda elongata (Brulle, 1832) |
tamarisk |
6 |
| skeletonweed gall mite | Eriophyes chondrillae Canestrini |
rush skeletonweed |
5 |
| yellow starthistle hairy weevil | Eustenopus villosus (Boheman, 1843) |
yellow starthistle |
161 |
| Scottish broom seed weevil | Exapion fuscirostre (Fabricius, 1775) |
Scotch broom |
3 |
| black-margined loosestrife beetle | Galerucella calmariensis (Linnaeus, 1767 |
purple loosestrife |
38 |
| golden loosestrife beetle | Galerucella pusilla (Duftschmid, 1825) |
purple loosestrife |
14 |
| leaf beetles | Galerucella spp. Crotch, 1873 |
purple loosestrife |
10 |
| toadflax capsule weevil | Gymnetron antirrhini (Paykull, 1800) |
yellow toadflax |
6 |
| toadflax capsule weevil | Gymnetron antirrhini (Paykull, 1800) |
Dalmatian toadflax |
2 |
| root galling weevil | Gymnetron linariae (Panzer, 1792) |
Dalmatian toadflax |
3 |
| toadflax weevil | Gymnetron spp. (Schönherr, 1825) |
Dalmatian toadflax |
1 |
| toadflax weevil | Gymnetron spp. (Schönherr, 1825) |
yellow toadflax |
9 |
| spurge hawkmoth | Hyles euphorbiae (Linnaeus) |
leafy spurge |
39 |
| root-boring weevil | Hylobius transversovittatus (Goeze, 1777) |
purple loosestrife |
8 |
| gall midge | Jaapiella ivannikovi Fedotova, 1985 |
Russian knapweed |
8 |
| yellow starthistle flower weevil | Larinus curtus Hochhut, 1851 |
yellow starthistle |
86 |
| lesser knapweed flower weevil | Larinus minutus Gyllenhal, 1836 |
musk thistle |
1 |
| lesser knapweed flower weevil | Larinus minutus Gyllenhal, 1836 |
spotted knapweed |
737 |
| lesser knapweed flower weevil | Larinus minutus Gyllenhal, 1836 |
common St. Johnswort |
1 |
| lesser knapweed flower weevil | Larinus minutus Gyllenhal, 1836 |
diffuse knapweed |
131 |
| lesser knapweed flower weevil | Larinus minutus Gyllenhal, 1836 |
knapweeds |
16 |
| blunt knapweed flower weevil | Larinus obtusus Gyllenhal, 1836 |
knapweeds |
4 |
| blunt knapweed flower weevil | Larinus obtusus Gyllenhal, 1836 |
spotted knapweed |
98 |
| Canada thistle bud weevil | Larinus planus (Fabricius, 1792) |
Canada thistle |
114 |
| weevil | Larinus spp. Dejean, 1821 |
diffuse knapweed |
20 |
| weevil | Larinus spp. Dejean, 1821 |
spotted knapweed |
88 |
| ragwort flea beetle | Longitarsus jacobaea (Waterhouse, 1858) |
tansy ragwort |
1 |
| stem-boring weevil | Mecinus janthinus (Germar, 1817) |
spotted knapweed |
1 |
| stem-boring weevil | Mecinus janthinus (Germar, 1817) |
toadflax |
4 |
| stem-boring weevil | Mecinus janthinus (Germar, 1817) |
yellow toadflax |
86 |
| stem-boring weevil | Mecinus janthinus (Germar, 1817) |
dalmatian toadflax |
1 |
| stem-boring weevil | Mecinus janthinus (Germar, 1817) |
Dalmatian toadflax |
306 |
| kudzu bug | Megacopta cribraria (Fabricius) |
wisterias |
1 |
| kudzu bug | Megacopta cribraria (Fabricius) |
lespedezas |
1 |
| kudzu bug | Megacopta cribraria (Fabricius) |
soybean |
2 |
| knapweed seedhead moth | Metzneria paucipunctella Zeller |
slenderflower thistle |
1 |
| knapweed seedhead moth | Metzneria paucipunctella Zeller |
knapweeds |
10 |
| knapweed seedhead moth | Metzneria paucipunctella Zeller |
spotted knapweed |
112 |
| puncturevine seed weevil | Microlarinus lareynii (Jacquelin du Val, 1852) |
puncturevine |
3 |
| puncturevine stem weevil | Microlarinus lypriformis (Wollaston, 1861) |
puncturevine |
1 |
| flower feeding weevil | Nanophyes marmoratus (Goeze, 1777) |
purple loosestrife |
5 |
| leafy spurge stem boring beetle | Oberea erythrocephala (Schrank, 1776) |
leafy spurge |
179 |
| Mediterranean sage root crown weevil | Phrydiuchus tau Warner, 1969 |
Mediterranean sage |
4 |
| brown-winged knapweed moth | Pterolonche inspersa Staudinger |
diffuse knapweed |
18 |
| brown-winged knapweed moth | Pterolonche inspersa Staudinger |
squarrose knapweed |
2 |
| brown-winged knapweed moth | Pterolonche inspersa Staudinger |
spotted knapweed |
4 |
| musk thistle head weevil | Rhinocyllus conicus (Frölich, 1792) |
musk thistle |
35 |
| musk thistle head weevil | Rhinocyllus conicus (Frölich, 1792) |
spiny plumeless thistle |
4 |
| musk thistle head weevil | Rhinocyllus conicus (Frölich, 1792) |
Scotch thistle |
2 |
| musk thistle head weevil | Rhinocyllus conicus (Frölich, 1792) |
Canada thistle |
10 |
| mile-a-minute weevil | Rhinoncomimus latipes Korotyaev, 1997 |
mile-a-minute weed |
275 |
| defoliator moth | Simyra dentinosa Freyer |
leafy spurge |
1 |
| bronze knapweed root borer | Sphenoptera jugoslavica Obenberger, 1926 |
diffuse knapweed |
21 |
| bronze knapweed root borer | Sphenoptera jugoslavica Obenberger, 1926 |
spotted knapweed |
14 |
| leafy spurge gall midge | Spurgia esulae Gagne |
leafy spurge |
163 |
| stem-gall nematode | Subanguina picridis (Kirj.) Brezeski. |
Russian knapweed |
95 |
| stem-gall nematode | Subanguina picridis (Kirj.) Brezeski. |
knapweeds |
1 |
| green knapweed clearwing fly | Terellia virens (Loew) |
spotted knapweed |
12 |
| green knapweed clearwing fly | Terellia virens (Loew) |
diffuse knapweed |
1 |
| thistle crown weevil | Trichosirocalus horridus (Panzer, 1801) |
Canada thistle |
5 |
| thistle crown weevil | Trichosirocalus horridus (Panzer, 1801) |
musk thistle |
150 |
| field bindweed moth | Tyta luctuosa (Denis & Schiffermüller) |
field bindweed |
20 |
| banded gall fly | Urophora affinis (Frauenfeld) |
spotted knapweed |
102 |
| banded gall fly | Urophora affinis (Frauenfeld) |
squarrose knapweed |
4 |
| banded gall fly | Urophora affinis (Frauenfeld) |
diffuse knapweed |
29 |
| Canada thistle stem gall fly | Urophora cardui (Linnaeus) |
musk thistle |
1 |
| Canada thistle stem gall fly | Urophora cardui (Linnaeus) |
bull thistle |
1 |
| Canada thistle stem gall fly | Urophora cardui (Linnaeus) |
Canada thistle |
292 |
| Canada thistle stem gall fly | Urophora cardui (Linnaeus) |
plumeless thistle |
1 |
| Canada thistle stem gall fly | Urophora cardui (Linnaeus) |
diffuse knapweed |
1 |
| UV knapweed seedhead fly | Urophora quadrifasciata (Meigen) |
diffuse knapweed |
2 |
| UV knapweed seedhead fly | Urophora quadrifasciata (Meigen) |
squarrose knapweed |
1 |
| UV knapweed seedhead fly | Urophora quadrifasciata (Meigen) |
spotted knapweed |
8 |
| UV knapweed seedhead fly | Urophora quadrifasciata (Meigen) |
knapweeds |
3 |
| yellow star thistle gall fly | Urophora sirunaseva (Hering) |
yellow starthistle |
12 |
| St. John's wart midge | Zeuxidiplosis giardi (Kieffer) |
common St. Johnswort |
2 |
