Tree Fruit Research & Extension Center

Insect Ecology & Behavior Laboratory

Images by Nik Wiman

The gallery below showcases many of the images taken by NIk Wiman while studying in the Insect Ecology and Behavior Lab. Beneath the gallery are some of the videos taken as par tof Nik's dissertation research. (Javascript must be enabled to view images.)


Photo Gallery

Images of Nemorilla pyste

Superparatization by Nemorilla pysteClose-up of a superparatized OBLR larva by Nemorilla pyste. Nemorilla assessing hostAn asult Nemorilla pyste assessing an OBLR larva as a potential host. Nemorilla resting An adult Nemorilla pyste resting near a potential host larva. Nemorilla assessing a second attackAn adult Nemorilla pyste resting after a successful attack and re-assessing for a scond attack. Nemorilla groomingAn adult Nemorilla pyste grooming between host attacks. Nemorilla leaf edgeAn adult Nemorilla pyste resting on the edge of an apple leaf. Nemorilla ovipositionAn adult Nemorilla pyste ovipositing on an OBLR larva. Nemorilla ovipositingAnother view of an adult Nemorilla pyste oviposting on an OBLR larva. Nemorilla ovipositingAn adult Nemorilla pyste retracting its ovipositor after a successfull attack. Nemorilla superparatizing Nemorilla pyste superparasitizing a host OBLR larva. Nemorilla pre-attack postureAn adult Nemorilla pyste cautiously approaching and a potential host larva. Nemorilla assesing hostAn adult Nemorilla pyste assessing a host larva prior to attack. OBLR superparasitized by nemorillaMultiple OBLR larva superparatized by Nemorilla pyste. Nemorilla maggot penetrationClose-up of a Nemorilla pyste maggot penetrating a host larva. Nemorilla entranceClose-up of an entrance hole made by a Nemorilla maggot. Nemorilla egg and repiratory funnelClose-up of a Nemorilla pyste egg and the exterior view of a respiratory funnel. Nemorilla eggs and entrance holeNemorilla pyste eggs near an entrance hole into the host. Nemorilla egg on exuviumA Nemorilla pyste egg on a leafroller exuvium (shed exoskeleton). Nemorilla second instarClose-up of a Nemorilla second instar maggot with mouth parts visible. Nemorilla respiratory funnelLeafroller larva dissection revealling a second instar Nemorilla pyste maggot with the associated respiratory funnel. <em>Nemorilla</em> pupariumA Nemorilla pyste puparium. Tachinid flies matingNemorilla adults caught in the act of mating. Nemorilla reproductive systemExcised female Nemorilla pyste reproductive system showing mature eggs. Adult NemorillaAnterior view of an adult male Nemorilla pyste. Nemorilla maleLateral view of an adult male Nemorilla pyste. Nemorilla headClose-up of a the head of a Nemorilla pyste adult. Nemorilla placing eggAn adult female Nemorilla pyste successfully ovipositing on a host larva. Nemorilla on leafAn adult Nemorilla pyste resting on an apple leaf. Nemorilla on leaf 2Dorsal view of a resting Nemorilla pyste adult. Nemorilla assessing hostA Nemorilla pyste female assessing a potential host larva. Nemorilla after successfull attacksA Nemorilla pyste female resting after attacking host larvae.
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Images of Nilea erecta

Nilea with host and pupariumAdult Nilea erectaem> (background) with dead host and puprium. First instar NileaFirst instar Nilea erects with teste. Nilea eggs on leafNilea erecta eggs on leaf surface; note evidence of leafroller feeding in foreground. Nilea resting on leafNilea erecta resting on a leafroller damaged apple leaf. First instar <em>Nilea</em> and tracheolesA first instar Nileaem> utilizing the host tracheoles. First instar Nilea and host tracheaeFirst instar Nilea maggot) attaching to host tracheae. Nilea maggot attacking hostFirst instar Nileaem> chewing hole into host. Nilea ovaryContrast dyed Nilea ovary showing stacked eggs. Nilea reproductive systemFemale Nilea erectaem> reproductive system showing stacked eggs.
Nilea with host and puparium1 First instar Nilea2 Nilea eggs on leaf3 Nilea resting on leaf4 First instar Nilea and tracheoles5 First instar Nilea and host tracheae6 Nilea maggot attacking host7 Nilea ovary8 Nilea reproductive system9
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Images of other insects and area scenery

Scarab appleHairy flower scarab beetle in apple tree. Red aphids feedingRed aphids, possibly Uroleucon spp., feeding beeflyClose-up head shot of a beefly (Syrphid fly) Consperse stink bugConsperse stink bug (Euschistus conspersus) in apple. Apple nectar feedingHoney bee drinking apple blossom nectar. Pollenating appleHoney bee pollenating apple blossom. Pear nectar feedingHoney bee drinking pear blossom nectar. Lorquin's admiralLorquin's Admiral butterfly (Limenitis lorquini). OBLR adult on leafAdult obliquebanded leafroller (Choristoneura rosaceana; OBLR) on an apple leaf. Orchard scenary Navarre orchard scenary of early summer showing bin pile. robberfly Close-up anterior view of a robberfly (Family: Asilidae). robberflyClose-up view of a robberfly (Family: Asilidae). Rose curculioAdult rose curculio weevil, Merhynchites bicolor. Roses and Wenatchee valleyView of the Columbia river and Wenatchee with wild roses framing the foreground. Syrphid flySyrphid fly resting on a cherry leaf. velvet antAdult velvet ant (Family: Mutillidae) Western spruce budwormWestern spruce budworm (Choristoneura occidentalis) with a tachinid egg on the head capsule.
Scarab apple1 Red aphids feeding2 beefly3 Consperse stink bug4 Apple nectar feeding5 Pollenating apple6 Pear nectar feeding7 Lorquin's admiral8 OBLR adult on leaf9 Orchard scenary 10 robberfly 11 robberfly12 Rose curculio13 Roses and Wenatchee valley14 Syrphid fly15 velvet ant16 Western spruce budworm17
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Video Gallery

Nemorilla attacking host video

The video below shows the tachinid parasitoid Nemorilla pyste attacking the host Choristoneura rosaceana (obliquebanded leafroller). The telescoping ovipositor is extended and the egg is typically glued to the head of the larva. The egg hatches after a few days and the maggot begins to saw its way into the host with a specialized mouth hook that is serrated. (If the video isn't showing you can veiw it here.)

Nilea competion video

This video shows the larval stages of the tachinid parasitoid Nilea erecta in a dissected larva of Choristoneura rosaceana. The first maggot is a dead second instar that was likely killed by the larger and predaceous third instar that is shown later feeding on host tissues. Note the large mandibles on the third instar that are used to kill competitors in the host. (If the video isn't showing you can veiw it here.)




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