Males do not possess stingers or ovipositors in either lineage. All of these species have shorter ovipositors and cerci. Since they do not have ovipositors, they do not have stingers. In contrast, ichneumonids have ovipositors instead of stingers, and they are all solitary. They are among the only Parasitica whose ovipositors can be used to sting vertebrates. These wasps, such as "Eurytoma rosae", are beautiful, metallic insects with long ovipositors. Female grasshoppers are normally larger than males, with short ovipositors. The first fossils of modern cockroaches with internal ovipositors appeared in the early Cretaceous. Cicadas pierce the wood of twigs with their ovipositors to insert the eggs. Grasshoppers use their ovipositors to force a burrow into the earth to receive the eggs. Those early ancestors however lacked the internal ovipositors of modern roaches. Females deposit eggs in living, healthy plant tissue using their telescopic ovipositors. Species of at least one genus, "Oregramma", have elongated lance shaped ovipositors. Many have no wings or ovipositors, and may have a different shape to the thorax. Females often have long ovipositors, an organ that largely varies interspecifically.