Lantern-fly (Fulgora), a genus of Hemiptera, type of a family Fulgoridae, allied to Cicadidae, but with legs more adapted for leaping, and without organs for producing sound. There are about a score of species, all tropical, most from South America, the rest in Asia and Africa. The forehead bears a remarkable empty dilatation or 'lantern,' quaint in form, sometimes towards an inch in length. The name lantern-fly was originally given to F. lanternaria, a species found in Guiana, measuring about 3 inches in length. The inflated projection of the forehead is said by some to be at times very brilliantly luminous; but the evidence is contradictory, and most naturalists refuse to believe in the luminosity of any of the species. It is possible that the luminosity, if genuine, is only occasional and of sexual significance. In the Chinese Lantern-fly (F. candelaria) the prolongation of the forehead is comparatively narrow.