Shade Tree & Shrub Insects


Slide Number and Title Common Name Scientific Name Family Photo. Code
1062. Yellow pecan aphid, Monelliopsis pecanis (WSC) Yellow pecan aphid Monelliopsis pecanis  Aphididae (WSC) FR, ST
1063. Leaf spotting produced by the black pecan aphid, Nuclaspis californica, close-up (WSC) Black pecan aphid Nuclaspis californica Aphididae (WSC) FR, ST
1064. Leaf spotting produced by the black pecan aphid, Nuclaspis californica, back-lit leaf (WSC) Black pecan aphid Nuclaspis californica Aphididae (WSC) FR, ST
1066. Stem-boring sawfly, Hartigia trimaculata, larva in raspberry stem (WSC) Stem-boring sawfly Hartigia trimaculata Cephidae (WSC) FR, ST
998. Grape leafhopper, Erythroneura vulnerata, nymph (WSC) Grape leafhopper Erythroneura vulnerata Cicadellidae (WSC) FR, ST
1065. European fruit lecanium, Parthenolecanium sp. on elm twig (WSC) European fruit lecanium Parthenolecanium sp. Coccidae (WSC) FR, ST
330. Tunnelled tart cherry pit from cherry gouger feeding (WSC) Cherry gouger   Curculionidae (WSC) FR, ST
340. Oozing of plum from plum gouger wounding (WSC)  Plum gouger Coccotorus scutellaris Curculionidae (WSC) FR, ST
203. Oystershell scale covering trunk of aspen (WSC) Oystershell scale Lepidosaphes ulmi Diaspididae (WSC) FR, ST
208. Oystershell scale, eggs exposed (WSC) Oystershell scale Lepidosaphes ulmi Diaspididae (WSC) FR, ST
128. Eastern tent caterpillar, larva (JLC) Eastern tent caterpillar Malacosoma americanum Lasiocampidae (JLC) FR, ST
159. Eastern tent caterpillar, egg mass (WSC) Eastern tent caterpillar Malacosoma americanum Lasiocampidae (WSC) FR, ST
160. Eastern tent caterpillar, egg mass, close-up (WSC) Eastern tent caterpillar Malacosoma americanum Lasiocampidae (WSC) FR, ST
973. Leafcutter bee, cutting leaf disk from lilac (WSC) Leafcutter bee   Megachilidae (WSC) FR, ST
327. Speckled green fruitworm, larva (FBP) Speckled green fruitworm Orthosia hibisci Noctuidae (FBP) FR, ST
120. Red-humped caterpillar (JLC) Red-humped caterpillar  Shizura concinna Notodontidae (JLC) FR, ST
597. Redhumped caterpillar (HEE) Redhumped caterpillar  Shizura concinna Notodontidae (HEE) FR, ST
1000. Apple mealybug, Phenacoccus aceris (WSC)  Apple mealybug Phenacoccus aceris  Pseudococcidae (WSC) FR, ST
1061. Grape mealybug, Pseudococcus maritimis, colony on grape (WSC) Grape mealybug Pseudococcus maritimis Pseudococcidae (WSC) FR, ST
323. Peach tree borer at base of peach tree (WSC) Peach tree borer  Synanthedon exitiosa Sesiidae (WSC) FR, ST
916. Peachtree borer, Synanthedon exitiosa, adult female (WSC) Peachtree borer Synanthedon exitiosa Sesiidae (WSC) FR, ST
917. Peachtree borer, adult male (WSC) Peachtree borer Synanthedon exitiosa Sesiidae (WSC) FR, ST
114. Achemon sphinx, larva (JLC) Achemon sphinx Eumorpha achemon Sphingidae (JLC) FR, ST
919. Pearslug/pear sawfly, larvae and leaf damage (WSC) Pearslug/pear sawfly Caliroa cerasi Tenthredinidae (WSC) FR, ST
958. Pearslug, recently hatched larva and egg (WSC) Pearslug Caliroa cerasi Tenthredinidae (WSC) FR, ST
129. Fruittree leafroller, larva spinning (JLC) Fruittree leafroller Archips argyrospila Tortricidae (JLC) FR, ST
130. Fruittree leafroller, close up of larva (JLC) Fruittree leafroller Archips argyrospila Tortricidae (JLC) FR, ST
260. Casebearer, larva with case (JLC) Casebearer     (JLC) ST
349. Sawfly galls on willow (WSC) Sawfly galls      (WSC) ST
444. ??? galls on sagebrush (WSC) ??? galls on sagebrush      (WSC) ST
545. Mountain ash sawflies (HEE) Mountain ash sawflies  Pristophora geniculata   (HEE) ST
619. Pontania sp., galls on willow (DAL)    Pontania sp   (DAL) ST
621. Sapsucker injury to lodgepole pine (DAL) Sapsucker      (DAL) ST
622. Red-naped sapsucker injury ("sapwells") on aspen (DAL) Red-naped sapsucker      (DAL) ST
626. Sawfly larvae on aspen (DAL) Sawfly      (DAL) ST
644. Tentiform leafminer mines on cottonwood leaf, top view (WSC) Tentiform leafminer      (WSC) ST
659. Tentiform leafminer mines on cottonwood leaf, bottom view (WSC) Tentiform leafminer      (WSC) ST
701. False looper (DAL) False looper      (DAL) ST
720. Zale sp. on ponderosa pine (DAL)   Zale sp   (DAL) ST
821. Euonymous scale (WSC) Euonymous scale  Unaspis euonymi   (WSC) ST
837. Small gall on leaf of wild rose (WSC)       (WSC) ST
133. Cooley spruce galls, dried on spruce (WSC) Cooley spruce galls Adelges cooleyi Adelgidae (WSC) ST
261. Cooley spruce gall adelgid on douglas-fir (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
262. Cooley spruce gall adelgid exposed in opened spruce gall (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
272. Cooley spruce galls, transect cut to expose chambering (WSC) Cooley spruce galls Adelges cooleyi Adelgidae (WSC) ST
355. Overwintered female of Cooley spruce gall adelgid on spruce (WSC) Cooley spruce gall adelgid  Adelges cooleyi Adelgidae (WSC) ST
826. Cooley spruce gall adelgid, young nymphs in developing gall (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
845. Cooley spruce gall adelgid, infestation and injury to Douglas-fir needles (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
846. Cooley spruce gall adelgid, late instar nymphs in gall (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
847. Cooley spruce gall adelgid, opening gall with insects emerging (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
848. Cooley spruce gall adelgid, close-up of emerging winged forms (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
849. Cooley spruce gall adelgid, overwintered female with eggs, close-up (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
850. Cooley spruce gall adelgid, overwintered female near bud (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
851. Cooley spruce gall adelgid, first ndications of developing gall shortly after bud break (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
852. Cooley spruce gall adelgid, close-up of form on douglas-fir (WSC) Cooley spruce gall adelgid Adelges cooleyi Adelgidae (WSC) ST
996. Gall produced by eastern spruce gall adelgid, Adelges abietis (WSC) Eastern spruce gall Adelges abietis  Adelgidae (WSC) ST
1089. Poplar twiggall fly, galls on twig Poplar twiggall fly Hexomyza schineri Agromyzidae   ST
1090. Poplar twiggall chewed on by chickadee (WSC)   Hexomyza schineri Agromyzidae (WSC) ST
1091. Poplar twiggall fly, ovipositing in terminal of twig (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
1092. Poplar twiggall fly, cross section of galled branch (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
1093. Poplar twiggall fly, pupa emerging from gall (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
193. Poplar twiggall fly, developing gall on aspen (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
239. Poplar twiggall fly, larva in gall (WSC)  Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
242. Galls of poplar twiggall fly on aspen (WSC) Galls of poplar twiggall fly on aspen Hexomyza schineri Agromyzidae (WSC) ST
273. Poplar twiggall fly, Hexomyza schineri, pupae (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
278. Poplar twiggall fly, Hexomyza schineri, adult on aspen leaf (WSC) Poplar twiggall fly Hexomyza schineri Agromyzidae (WSC) ST
974. Small carpenter bee, Ceratina sp., visiting flower (WSC) Small carpenter bee Ceratina sp. Anthophoridae (WSC) ST
213. Witches broom from honeysuckle witches broom aphid (WSC) honeysuckle witches broom aphid Hyadaphis tartaricae Aphididae (WSC) ST
221. Honeysuckle aphid injury, old witches broom with new spring growth (WSC) Honeysuckle aphid  Hyadaphis tartaricae Aphididae (WSC) ST
322. Honeysuckle witches broom aphid, old witches broom (WSC) Honeysuckle witches broom aphid Hydaphis tartaricae Aphididae (WSC) ST
335. Extensive leaf curl injury by leafcurl ash aphid (DAL) Leafcurl ash aphid Prociphilus fraxinifolii Aphididae (DAL) ST
350. Boxelder aphids, Periphyllus sp., being tended by ant (WSC)  Boxelder aphids Periphyllus sp. Aphididae (WSC) ST
352. Leafcurl ash aphid, Prociphilus fraxinifolii, colony (WSC) Leafcurl ash aphid Prociphilus fraxinifolii Aphididae (WSC) ST
728. Colony of aphids, Periphyllus sp., on maple (WSC) Colony of aphids Periphyllus sp. Aphididae (WSC) ST
761. Snowball aphid colony, close-up (WSC) Snowball aphid colony   Aphididae (WSC) ST
782. Honeysuckle aphid, witches broom (WSC) Honeysuckle aphid Hyadaphis tartaricae Aphididae (WSC) ST
827. Giant conifer aphids, Cinara sp., on spruce (WSC) Giant conifer aphids Cinara sp. Aphididae (WSC) ST
903. Leafcurl ash aphids, heavy infestation of ash foliage (WSC) Leafcurl ash aphids Prociphilus fraxinifolii Aphididae (WSC) ST
906. Honeysuckle witches broom aphids, Hyadaphis tartaricae, close-up (WSC) Honeysuckle witches broom aphids Hyadaphis tartaricae Aphididae (WSC) ST
610. Halisidota tesselaris, adult male (WLM)   Halisidota tesselaris Arctiidae (WLM) ST
675. A tiger moth, Halisodota ingens, larva on white fir (DAL) Tiger moth Halisodota ingens Arctiidae (DAL) ST
699. Tiger moth (DAL) Tiger moth  Halisodota ingens Arctiidae (DAL) ST
700. Tiger moth tent on ponderosa pine terminal (DAL) Tiger moth  Halisodota ingens Arctiidae (DAL) ST
719. Silver spotted tiger moth on juniper (DAL) Silver spotted tiger moth    Arctiidae (DAL) ST
937. Fall webworm, Hyphantria cunea, adult (WSC) Fall webworm Hyphantria cunea Arctiidae (WSC) ST
938. Fall webworm, tents in chokecherry (WSC) Fall webworm Hyphantria cunea Arctiidae (WSC) ST
235. Raised areas of callous on birch trunk resulting from bronze birch borer tunneling (WSC) Bronze birch borer Agrilus anxius Buprestidae (WSC) ST
623. Bronze birch borer, Agrilus anxius, larval track under bark of birch (DAL) Bronze birch borer Agrilus anxius Buprestidae (DAL) ST
639. Flathead borer, Agrilus sp., tracks under aspen bark (DAL) Flathead borer Agrilus sp. Buprestidae (DAL) ST
687. Bronzed birch borer, tracks under bark are visible (DAL) Bronzed birch borer Agrilus anxius Buprestidae (DAL) ST
965. Golden buprestid, Buprestis aurulenta, adult (WSC) Golden buprestid Buprestis aurulenta Buprestidae (WSC) ST
966. Buprestis sp., adult (DAL)  Flatheaded borer Buprestis sp Buprestidae (DAL) ST
217. Willow cone gall caused by gall midge (WSC) Gall midge Rhabdophaga strobiloides Cecidomyiidae (WSC) ST
218. Pinyon spindle gall midge (WSC) Pinyon spindle gall midge  Pinyonia edulicola Cecidomyiidae (WSC) ST
244. Pinyon spindlegall midge, adult on needle (WSC) Pinyon spindlegall midge Pinyonia edulicola Cecidomyiidae (WSC) ST
259. Honeylocust podgall midge, adult (WSC) Honeylocust podgall midge Dasineura gleditschiae Cecidomyiidae (WSC) ST
441. Galls produced by the juniper tip gall midge (DAL) Juniper tip gall midge  Oligotrophis betheli Cecidomyiidae (DAL) ST
673. Pinyon stunt gall midge, dried galls (DAL) Pinyon stunt gall midge Janietella coloradensis Cecidomyiidae (DAL) ST
736. Honeylocust podgalls (DAL) Honeylocust podgalls  Dasineura gleditschiae Cecidomyiidae (DAL) ST
786. Honeylocust podgall midge, pupa (WSC) Honeylocust podgall midge Dasineura gleditschiae Cecidomyiidae (WSC) ST
801. Pinyon branch heavily infested with pinyon spindle gall midge (WSC) Pinyon spindle gall midge  Pinyonia edulicola Cecidomyiidae (WSC) ST
822. Pinyon spindle gall midge, gall on bristlecone pine (WSC) Pinyon spindle gall midge Pinyonia edulicola Cecidomyiidae (WSC) ST
859. Galling of boxelder leaf by gall midges (WSC) Gall midges  Continaria negundinis Cecidomyiidae (WSC) ST
868. Pinyon spindle gall midge, adult emerging from needle (WSC) Pinyon spindle gall midge Pinyonia edulicola Cecidomyiidae (WSC) ST
210. Cottonwood borer, adult on trunk (WSC) Cottonwood borer Plectodera scalator Cerambycidae (WSC) ST
449. California prionus, Prionus californicus, larva (WSC) California prionus Prionus californicus Cerambycidae (WSC) ST
490. Pine sawyer, Monochamous sp., resting on log, top view (WSC) Pine sawyer Monochamous sp. Cerambycidae (WSC) ST
570. Neoclytus sp., cerambycid wood borer, adult on peach (HEE) Cerambycid wood borer Neoclytus sp Cerambycidae (HEE) ST
653. Black locust borer, larvae in wood (SJK) Black locust borer Megacyllene robiniae Cerambycidae (SJK) ST
654. Black locust borer, adult (DAL) Black locust borer Megacyllene robiniae Cerambycidae (DAL) ST
665. Monochamous adult on twig (DAL) Pine sawyer Monochamus sp. Cerambycidae (DAL) ST
681. Excelsior-like borings from Callidium antennatum tunneling of pine logs (DAL) Blackhorned pine borer Callidium antennatum Cerambycidae (DAL) ST
682. Tunnels produced by Callidium antennatum under pine bark (DAL) Blackhorned pine borer Callidium antennatum Cerambycidae (DAL) ST
684. Banded ash borer (DAL) Banded ash borer  Neoclytus caprea Cerambycidae (DAL) ST
685. Banded ash borer (DAL) Banded ash borer  Neoclytus caprea Cerambycidae (DAL) ST
686. External symptoms of poplar borer infestation (DAL) Poplar borer Saperda calcarata Cerambycidae (DAL) ST
738. Redheaded ash borer, adult (DAL) Redheaded ash borer Neoclytus acuminatus Cerambycidae (DAL) ST
741. Cerambycid larvae and exposed tunnels in small trunk (DAL) Cerambycid    Cerambycidae (DAL) ST
760. Callidium sp., adult feeding at pine terminal (WSC) Blackhorned pine borer Callidium sp Cerambycidae (WSC) ST
960. Ponderous borer, Ergates spiculatus, adult (DAL) Ponderous borer Ergates spiculatus Cerambycidae (DAL) ST
963. Poplar borer, Saperda calcarata, adult (WSC) Poplar borer Saperda calcarata Cerambycidae (WSC) ST
964. Pole borer, Parandra brunnea, adult (WSC) Pole borer Parandra brunnea Cerambycidae (WSC) ST
967. Bark sculpturing typical of Callidium larval feeding (WSC) Blackhorned pine borer Callidium sp. Cerambycidae (WSC) ST
215. Juniper spittlebug, nymph exposed from spittle (WSC) Juniper spittlebug Clastoptera juniperina Cercopidae (WSC) ST
250. Juniper spittlebug spittle mass (WSC) Juniper spittlebug Clastoptera juniperina Cercopidae (WSC) ST
565. Meadow spittlebug, spittle mass on plant stem (HEE) Meadow spittlebug   Cercopidae (HEE) ST
197. Trirhabda nitidicollis, adult on rabbitbrush (WSC) Rabbitbrush beetle Trirhabda nitidicollis Chrysomelidae (WSC) ST
243. Elm leaf beetle, adult and larva (WSC) Elm leaf beetle Xanthogaleruca luteola Chrysomelidae (WSC) ST
265. Elm leaf beetle, pupae (WSC) Elm leaf beetle Xanthogaleruca luteola Chrysomelidae (WSC) ST
361. Dogbane leaf beetle, Chrysochus auratus, adult (WSC) Dogbane leaf beetle Chrysochus auratus Chrysomelidae (WSC) ST
458. Cottonwood leaf beetle, Chrysomela scripta, egg mass (WSC) Cottonwood leaf beetle Chrysomela scripta Chrysomelidae (WSC) ST
459. Cottonwood leaf beetle, Chrysomela scripta, larval injury to foliage (WSC) Cottonwood leaf beetle Chrysomela scripta Chrysomelidae (WSC) ST
479. Cottonwood leaf beetle, nymphs hatching (WSC) Cottonwood leaf beetle Chrysomela scripta Chrysomelidae (WSC) ST
617. Locust leafminer, Odontata dorsalis, in black locust (DAL)  Locust leafminer Odontata dorsalis Chrysomelidae (DAL) ST
722. Cottonwood leaf beetle, pupa (WSC) Cottonwood leaf beetle Chrysomela scripta Chrysomelidae (WSC) ST
771. Willow leaf beetle, Chrysomela sp., larvae on willow (WSC) Willow leaf beetle Chrysomela sp. Chrysomelidae (WSC) ST
802. Elm leaf beetle, adult feeding injury (WSC) Elm leaf beetle Xanthogaleruca luteola Chrysomelidae (WSC) ST
841. Elm leaf beetle, mass of overwintered adults exposed in log pile (WSC) Elm leaf beetle Xanthogaleruca luteola Chrysomelidae (WSC) ST
853. Trirhabda nitidicollis, larva on rabbitbrush (WSC) Rabbitbrush beetle Trirhabda nitidicollis Chrysomelidae (WSC) ST
971. Cottonwood leaf beetle, Chrysomela scripta, adult (WSC) Cottonwood leaf beetle Chrysomela scripta Chrysomelidae (WSC) ST
202. Macropsis fumipennis, young nymph (WSC)   Macropsis fumipennis Cicadellidae (WSC) ST
271. Macropsis fumipennis, late-instar nymph (WSC)   Macropsis fumipennis Cicadellidae (WSC) ST
79. Colony of the leafhopper Cuerna septrionalis on stem of a plant (WSC) Leafhopper  Cuerna septrionalis  Cicadellidae (WSC) ST
834. Leafhopper, adult on bluegrass (WSC) Leafhopper   Cicadellidae (WSC) ST
140. Dog-day cicada, adult, top view (WSC) Dog-day cicada Tibicen sp. Cicadidae (WSC) ST
232. Dog-day cicada, nymph crawling on trunk (WSC) Dog-day cicada Tibicen sp. Cicadidae (WSC) ST
276. Dog-day cicada, teneral adult (WSC) Dog-day cicada Tibicen sp. Cicadidae (WSC) ST
351. Cicada, ????? sp., on oak leaf (WSC) Cicada   Cicadidae (WSC) ST
354. Cast skin of dog-day cicada, Tibicen sp. (WSC) Dog-day cicada Tibicen sp..  Cicadidae (WSC) ST
737. Putnam's cicada, Platypedia putnami, twig break due to oviposition wounds (DAL) Putnam's cicada Platypedia putnami Cicadidae (DAL) ST
739. Putnam's cicada, Platypedia putnami, oviposition wounds on twig (DAL) Putnam's cicada Platypedia putnami Cicadidae (DAL) ST
769. Periodical cicada, cast skin on twig (WSC) Periodical cicada   Cicadidae (WSC) ST
772. Periodical cicada, emerging from nymphal skin (LBB) Periodical cicada   Cicadidae (LBB) ST
778. Periodical cicada, Okanagana sp., adult (WSC) Periodical cicada Okanagana sp. Cicadidae (WSC) ST
284. Cottony maple scale, full-grown females with egg sack (WSC)  Cottony maple scale Pulvinaria innumerabilia Coccidae (WSC) ST
358. Striped pine scale, Toumeyella pini, crawlers emerging from overturned female (DDC) Striped pine scale Toumeyella pini Coccidae (DDC) ST
434. Comparison of pine tortoise scale and striped pine scale, mature females (DDC) Pine tortoise scale and striped pine scale   Coccidae (DDC) ST
536. Pine tortoise scale, nymphs clustered at base of needles (DDC) Pine tortoise scale Toumeyella parvicornis Coccidae (DDC) ST
543. Pine tortoise scale, mature adult females on twig (DDC) Pine tortoise scale Toumeyella parvicornis Coccidae (DDC) ST
596. Black scale, Saissetia oleae (WSC) Black scale   Coccidae (WSC) ST
785. Soft brown scale and honeydew on Ficus leaf (WSC) Soft brown scale  Lecanium sp. Coccidae (WSC) ST
872. Wax scales, Ceroplastes sp., on twig next to ruler for scale (WSC) Wax scales Ceroplastes sp. Coccidae (WSC) ST
404. Carpenterworm, Prionoxystus robiniae, larva (WSC)  Carpenterworm Prionoxystus robiniae Cossidae (WSC) ST
139. Notching of rhododendron by black vine weevil (WSC) Black vine weevil Otiorhynchus sulcatus Curculionidae (WSC) ST
263. White pine weevil larvae in spruce terminal (WSC) White pine weevil  Pissodes strobi Curculionidae (WSC) ST
269. Black vine weevil, adult (JLC) Black vine weevil Otiorhynchus sulcatus Curculionidae (JLC) ST
656. Lodgepole terminal weevil, Pissodes terminalis, damaged terminal (DAL) Lodgepole terminal weevil Pissodes terminalis Curculionidae (DAL) ST
807. White pine weevil injury to spruce terminal (WSC) White pine weevil  Pissodes strobi Curculionidae (WSC) ST
968. Poplar-willow borer, Cryptorhynchus lapathe, adult on pin (WSC) Poplar-willow borer Cryptorhynchus lapathe Curculionidae (WSC) ST
969. Top dieback of white pine due to white pine weevil injury (WSC) White pine weevil  Pissodes strobi Curculionidae (WSC) ST
970. Rose curculio, Merhynchites bicolor, adult (WSC) Rose curculio Merhynchites bicolor Curculionidae (WSC) ST
206. Cynipid galls on rose (WSC) Cynipid galls   Cynipidae (WSC) ST
207. Cynipid galls on rose, cut away (WSC) Cynipid galls   Cynipidae (WSC) ST
249. Cynipid galls on sage (WSC) Cynipid   Cynipidae (WSC) ST
544. Oak apple gall, produced by cynipid wasp (HEE) Oak apple gall   Cynipidae (HEE) ST
810. Oak apple gall caused by cynipid wasp (WSC) Cynipid wasp    Cynipidae (WSC) ST
811. Oak apple gall, covering removed (WSC) Oak apple gall   Cynipidae (WSC) ST
835. Mossy rose gall, caused by cynipid wasp (WSC) Mossy rose gall   Cynipidae (WSC) ST
836. Mossy rose gall, cut away to expose cynipid larvae (WSC) Mossy rose gall   Cynipidae (WSC) ST
1095. Pine needle scale on spruce (WSC) Pine needle scale  Chionaspis pinifoliae Diaspididae (WSC) ST
1097. Pine needle scale, crawlers (WSC) Pine needle scale Chionaspis pinifoliae Diaspididae (WSC) ST
196. Oystershell scale, crawlers (FBP) Oystershell scale Lepidosaphes ulmi Diaspididae (FBP) ST
247. Oystershell scale, close-up (WSC) Oystershell scale Lepidosaphes ulmi Diaspididae (WSC) ST
283. Pine needle scale, eggs exposed (WSC) Pine needle scale Chionaspis pinifoliae Diaspididae (WSC) ST
321. San Jose scale on apple fruit, close-up (WSC)  San Jose scale on apple fruit Quadraspidiotus perniciosus Diaspididae (WSC) ST
43. Striped pine scale, male nymphs on needle (WSC) Striped pine scale   Diaspididae (WSC) ST
478. Scurfy scale, Chionaspis furfura, on aspen (WSC) Scurfy scale Chionaspis furfura Diaspididae (WSC) ST
601. Oystershell scale, crawlers (FBP) Oystershell scale Lepidosaphes ulmi Diaspididae (FBP) ST
707. Oystershell scale crawlers with caption "CRAWLER TREATMENT: Timed to coincide with egg hatch"  Oystershell scale crawlers Lepidosaphes ulmi Diaspididae   ST
713. Pine needle scale, adult exposed from scale (WSC) Pine needle scale Chionaspis pinifoliae Diaspididae (WSC) ST
784. Oystershell scale, ventral side exposed to show eggs (WSC) Oystershell scale Lepidosaphes ulmi Diaspididae (WSC) ST
818. Juniper scale (WSC) Juniper scale  Carulaspis juniperi Diaspididae (WSC) ST
820. Black pineleaf scale, Nuclaspis californica, adults on needle (WSC) Black pineleaf scale Nuclaspis californica Diaspididae (WSC) ST
828. Pine needle scale, young nymphs on needle (WSC) Pine needle scale Chionapsis pinifoliae Diaspididae (WSC) ST
830. Oystershell scale, colony covering aspen trunk (WSC) Oystershell scale Lepidosaphes ulmi Diaspididae (WSC) ST
843. Pine needle scale, cover removed to expose developing female (WSC) Pine needle scale Chionapsis pinifoliae Diaspididae (WSC) ST
844. Juniper scale, Carulaspis juniperi, close-up (WSC) Juniper scale Carulaspis juniperi Diaspididae (WSC) ST
245. Juniper sawfly (JLC) Juniper sawfly  Monoctenus fluvus Diprionidae (JLC) ST
252. Juniper sawfly, mating pair (JLC) Juniper sawfly Monoctenus fluvus Diprionidae (JLC) ST
657. Pinyon sawfly, larvae feeding gregariously (DAL) Pinyon sawfly Neodiprion lecontei Diprionidae (DAL) ST
676. Sawfly, Zadiprion townsendi, cocoons in letter (DAL) Sawfly Zadiprion townsendi Diprionidae (DAL) ST
677. Sawfly, Neodiprion ventralis, larvae feeding on needles Sawfly Neodiprion ventralis Diprionidae   ST
708. Pine sawfly injury (DAL) Pine sawfly    Diprionidae (DAL) ST
723. Pinyon sawfly (DAL) Pinyon sawfly    Diprionidae (DAL) ST
950. Bull pine sawfly, Zadiprion townsendi, adult (WSC) Bull pine sawfly Zadiprion townsendi Diprionidae (WSC) ST
951. Bull pine sawfly, Zadiprion townsendi, larvae (WSC) Bull pine sawfly Zadiprion townsendi Diprionidae (WSC) ST
952. Bull pine sawfly, Zadiprion townsendi, pupae (WSC) Bull pine sawfly Zadiprion townsendi Diprionidae (WSC) ST
194. European elm scale, Gossyparia spuria, full-grown females and males (WSC) European elm scale Gossyparia spuria Eriococcidae (WSC) ST
266. European elm scale, nymphs on elm leaf (WSC) European elm scale Gossyparia spuria Eriococcidae (WSC) ST
815. European elm scale, second instar nymph on leaf (WSC) European elm scale Gossyparia spuria Eriococcidae (WSC) ST
816. European elm scale, crawlers on adult females (WSC) European elm scale Gossyparia spuria Eriococcidae (WSC) ST
223. Eriophyid mite galls on boxelder (WSC) Eriophyid mite   Eriophyidae (WSC) ST
248. Cottonwood catkin gall (WSC) Cottonwood catkin   Eriophyidae (WSC) ST
253. Poplar budgall (WSC) Poplar budgall  Eriophyes parapopuli Eriophyidae (WSC) ST
267. Leaf vagrant eriophyid mites on ash (WSC) Leaf vagrant eriophyid mites   Eriophyidae (WSC) ST
286. Ash flower gall, dried (WSC) Ash flower gall   Eriophyidae (WSC) ST
287. Erineum covering leaves of mountain maple (DAL) Erineum    Eriophyidae (DAL) ST
357. Extensive twiggalling of hackberry by eriophyid mites Eriophyid mites   Eriophyidae (WSC) ST
764. Poplar budgall, close-up (WSC) Poplar budgall Eriophyes parapopuli Eriophyidae (WSC) ST
770. Eriophyid mite finger galls on choke cherry (WSC) Eriophyid mite    Eriophyidae (WSC) ST
799. Rust mites on honeylocust leaf (WSC) Rust mites Aculps sp. Eriophyidae (WSC) ST
856. Witches broom of hackberry caused by eriophyid mite, close-up (WSC) Eriophyid mite   Eriophyidae (WSC) ST
231. Poplar vagabond aphid pseudo-gall on aspen (WSC) Poplar vagabond aphid   Eriosomatidae (WSC)