from The Century Dictionary.
- noun In entomology: The lamellate clasping-organ at the end of the abdomen of many male dipterous insects, designed to retain the female. In some species it is very large, and turned under the abdomen.
- noun The last visible ventral segment of an insect's abdomen, immediately beneath the pygidium, or last dorsal segment.
Sorry, no etymologies found.
Antennae longer and more porrect; second submarginal cell as long as the third; abdomen broader at the base, its ventral surface concave; hypopygium scarcely carinated laterally, and pygidium prominent and deeply emarginate, its lateral edges produced into acute teeth.