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Two new beautiful wasp1 species are added to the rare pompilid(蛛蜂) genus Abernessia, which now contains a total of only four known species. The two new species A. prima and A. capixaba are believed to be endemic(地方性的) for Brazil alongside the rest of the representatives of the genus. Both wasps2 are distinguished3 by the large size (almost 3cm in length) and the beautiful black color with metallic4 shine typical for the family. The study was published in the open access journal ZooKeys. The enigmatic(神秘的) genus Abernessia is part of the spider wasp family Pompilidae. Spider wasps take their name from the preference of the representatives to parasitize spiders. The females paralyze the prey5 by stinging it, which is then put in a specifically built nest. The female then lays a single egg on the abdomen6 of the spider and bury it carefully marking any signs that might give away the nest.
Interestingly it is believed to have a connection between the sizes of prey and size of the offspring of the wasps, the lager wasps are believed to appear from nests containing larger prey.
"There is a positive correlation7 between size of the spider preyed8 and size of the wasp produced in the next generation." comments Dr. Waichert, Utah State University.
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