Chien C. Lee

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  • Tiny, ubiquitous, and comprising many thousands of species, parasitoid wasps extract a heavy toll on their hosts, with many species responsible for keeping other insect populations in check. Here, a female wasp (Anastus sp.), just a few millimeters in length, drills her ovipositer into the eggshell of an Atlas Moth (Attacus atlas), the world's largest moth. Her developing larvae will consume the contents of the egg and pupate therein before emerging as adults. Sarawak, Malaysia (Borneo).
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  • “Parasitoids” are defined as different from “parasites” in that they ultimately kill their host, and among the most nefarious of these are those that are able to manipulate the behavior of their host, keeping them alive only until they no longer need them. This unfortunate katydid is in the process of having a horsehair worm (Nematomorpha) vacate its body. Although the katydid is still alive, the worm has slowly devoured most of its internal organs while growing inside to many times the length of its host’s body. Even when fully developed, the worm keeps from killing the insect because it uses it for transport – somehow compelling the katydid to seek out a source of water where the worm can finally complete its life cycle. Yasuní National Park, Ecuador.
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  • A butterfly caterpillar (Cupha erymanthis) standing guard over a clutch of parasitic wasp pupae that recently hatched from its body. Having been impregnated by eggs from a female wasp, the larvae develop within the caterpillar, consuming its flesh as they grow. In order to keep their host alive, the wasp larvae are careful to avoid all vital organs and the caterpillar thus appears and behaves rather normal until the larvae eventually emerge. In a similar vein to the mind-controlled zombie ants, the wasp larvae also secrete some cocktail of hormones that modify the behavior of the caterpillar, in this case it is induced to stand guard and protect the wasp pupae from predators or other parasitic wasps until it eventually dies of starvation. Mulu National Park, Sarawak, Malaysia (Borneo).
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  • Bullet Ant (Paraponera clavata) killed by parasitoid fungi (Ophiocordyceps ponerinarum). Yasuní National Park, Ecuador.
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  • With almost a sinister beauty, this garden of parasitoid fungus (possibly Akanthomyces) sprouts its fruiting bodies from the back of a moth it has killed. These release millions of microscopic spores which are dispersed into the surrounding area. When ingested by another insect they spell certain doom. Sarawak, Malaysia (Borneo).
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  • Wax-tailed Planthopper (Pterodictya reticularis). The waxy filaments may serve to mimic an insect that has been keeled by parasitoid fungi, and thus dispel a predator's interest. Yasuní National Park, Ecuador.
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  • The dreaded Bullet Ant (Paraponera clavata), in possession of the most painful sting on the planet, here has fallen prey to an even more sinister organism: a parasitoid fungus (Ophiocordycipitaceae). The ‘zombification’ of insects in tropical rainforests has been well documented, but the incredibly precise way that these fungi control the behavior of their hosts prior to consuming them is not yet fully understood. Recent research indicates that, rather than invading the brain which might kill the insect prematurely, the fungus may directly control the muscles of its host like a puppet. In this way it can lead the ant to a location where it is more likely to infect others. Yasuní National Park, Ecuador.
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  • Parallel-spiined Spiny Spider (Gasteracantha diardi), female with eggs of parasitoid Chloropid fly (Pseudogaurax sp.). Sarawak, Malaysia (Borneo).
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  • The haunting hollow skeleton of a fly is all that remains after being consumed alive by a parasitoid fungi (Ophiocordyceps cf. dipterigena) in the New Guinean rainforest. Two different types of fruiting bodies have emerged from the fly's body: the dorsal 'mushrooms' (ascostroma) are perfectly positioned to release tiny spores on the fungi's next victim. The tropics hold a great diversity of these entomopathogenic fungi, with undoubtedly many undescribed species, each apparently tailored to target specific insect hosts. West Papua, Indonesia.
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  • A dead leaf mantis (Deroplatys cf. lobata) standing guard over her egg sac. Such behavior might enable her to deter parasitoid wasps from destroying her brood, a common threat for mantises. Maliau Basin Conservation Area, Sabah, Malaysia (Borneo).
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  • Shag-carpet Caterpillar (Prothysana), one of two species that, aside from their curious appearance, exhibit a remarkable form of mimicry. Tiny parasitoid wasps are known for extracting a heavy toll on caterpillars: their larvae devour a caterpillar from inside out, emerging once they are ready to turn into adult wasps and leaving their distinctive white cocoons in the process. At a glance, the white dorsal hairs of Prothsyana look exactly like these wasp cocoons, so much so that the wasps themselves likely avoid laying their eggs in this caterpillar, believing that it has already been eaten. Yasuní National Park, Ecuador.
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  • A spiny tachinid fly (Eudejeania sp.), the larvae of which are typically parasitoids of caterpillars. Cosanga, Ecuador.
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