title: Sterile male of the rat-flea Xenopsylla cheopis rothschild (Siphonaptera).
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D007248:Infertility, Male; D007814:Larva; D008297:Male; D005423:Siphonaptera; D013094:Spermatozoa; D013737:Testis / Q000002:abnormalities / Q000033:anatomy & histology