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Argochrysis
cuckoo wasps
Argochrysis is a genus of cuckoo wasps (family Chrysididae) containing approximately five described species. Members are obligate cleptoparasites of solitary ground-nesting wasps in the genus Ammophila. The genus is notable for sophisticated learned foraging behaviors, including visual host location during nest excavation, spatial memory for nest locations, and surveillance of multiple nests during host absence.
Argochrysis armilla
Argochrysis armilla is a cleptoparasitic wasp in the family Chrysididae that specializes in attacking ground-nesting sphecid wasps of the genus Ammophila, particularly A. dysmica. This species has evolved sophisticated behavioral adaptations to overcome the temporal and spatial defenses of its hosts, including visual location of digging hosts, spatial learning of nest locations, and surveillance of multiple nests during host absence. Its foraging strategy creates strong selective pressure on host nesting behavior, favoring delayed provisioning and dispersed nest placement. The species was described by Bohart in 1982 and remains poorly known from a natural history perspective beyond its host interactions.
Polistes dominula
European Paper Wasp
Polistes dominula is a highly successful invasive social wasp native to Eurasia that has established populations across North America, South America, New Zealand, South Africa, and other regions. First detected in North America near Boston in 1978, it has become one of the most abundant wasps on the continent. The species builds small, exposed paper nests in protected locations and preys primarily on live insects, particularly caterpillars. Unlike yellowjackets, it does not scavenge for meat or sugar. Its rapid spread has been attributed to ecological flexibility, superior competitive ability, and tolerance of human-altered environments.
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helluo
Wetland Giant Wolf Spider
Tigrosa helluo is a medium-sized wolf spider (Lycosidae) native to North America, formerly classified as Hogna helluo. Adults average approximately 17 mm in body length, with females larger than males. The species is distinguished by a brown carapace with a prominent yellow stripe extending from the anterior eyes down the cephalothorax, and black spots on the underside of the abdomen. It inhabits diverse environments including woods, marshes, fields, and riparian areas, with a preference for wetter habitats. The spider is nocturnal, solitary, and an active hunter that does not build webs for prey capture.