Аннотация:Using electron microscopy, nine species of four Apocrita families (Vespidae, Apidae, Formicidae, and Pteromalidae) were studied. In these species, sensory organs on antennae and maxillary and labial palps are submitted by sensilla with a small cuticular parts. There are papillar on antennae and papillae and ampullary, button-like, and basiconic sensillae , on maxillary and labial palps. Such a set of sensory organs in Apocrita larvae has been formed due to the cryptozoic mode of life and nurture from imagoes.