Sperm bundles in the seminal vesicles of sexually mature Lasius ant males.
In many insects, sperm cells are Bush produced in bundles with their heads being held together by a glycoprotein matrix secreted by a cyst cell.Mature sperm cells in the seminal vesicles are usually free, but in sawflies and several other insects, such structures (spermatodesmata) remain intact and sperm cells may be ejaculated as bundles.Here we r