An expedition to the Indonesian island of Sulawesi has led to discovery of a new 'King of Wasps' - 80 years after it was first collected.
Megalara garuda is pitch-black, has an enormous body size, and its males have long, sickle-shaped jaws. It is one the largest known members of the crabronid subfamily Larrinae.
The species belongs into the digger wasp family, which is a diverse group of wasps with several thousands of species known from all over the world. Female digger wasps search for other insects as prey for their young and paralyze the prey by stinging it. Prey selection is often species specific, but the prey of the new species is unknown. With its unusual body size and the male's jaws, the new species differs from all known related digger wasps, so much so that it was placed in a new genus of its own, Megalara.
Megalara garuda. Credit: Dr. Lynn Kimsey, Dr. Michael Ohl
The new genus name is a combination of the Greek Mega, meaning large, and the ending of Dalara, a related wasp genus.
Lynn Kimsey of U.C. Davis and Michael Ohl of the Museum für Naturkunde in Berlin, who discovered the giant wasp simultaneously and have worked on it in collaboration, named the species after Garuda, the national symbol of Indonesia, a part-human, part-eagle mythical creature known as the King of Birds in Hindu mythology.
Since this species has never been observed alive, nothing is known about its biology or behavior. The males of Megalara garuda are distinctly larger than the females, and bear very long jaws. As can be deduced from other insects with large jaws, it is likely that the males hold the females with it during copulation. It is also possible that they use the jaws for defense.
Megalara garuda male. Credit: Dr. Lynn Kimsey, Dr. Michael Ohl
Citation: Lynn S. Kimsey, Michael Ohl, 'Megalara garuda, a new genus and species of larrine wasps from Indonesia (Larrinae, Crabronidae, Hymenoptera)', ZooKeys 177: 49–57, doi: 10.3897/zookeys.177.2475 (FREE TO READ)
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