Seven gynandromorphic specimens of Megachile picicornis and M. deceptoria collected in the Crimea are described. All specimens of both species have similar morphology, i.e. the male-like head (except for the 12-segmented antennae) and legs as well as the female-like metasoma that totally lacks scopa. Arguments in favor of the hypothesis that ontogenetic anomalies of that kind could lead to the origin of cleptoparasitic species of bees from the nest-building ones are given. ÐÅÇÞÌÅ. Îïèñàíî ñåìü ãèíàíäðîìîðôíûõ ýêçåìïëÿðîâ Megachile picicornis è M. deceptoria, ñîáðàííûõ â Êðûìó. Âñå ýêçåìïëÿðû îáîèõ âèäîâ èìåþò ñõîäíóþ ìîðôîëîãèþ: ãîëîâà (çà èñêëþ÷åíèåì 12-÷ëåíèêîâûõ àíòåíí) è íîãè êàê ó ñàìöîâ, à ìåòàñîìà êàê ó ñàìîê, íî ïîëíîñòüþ ëèøåííàÿ ñêîïû. Ïðèâåäåíû àðãóìåíòû â ïîëüçó ãèïîòåçû î òîì, ÷òî ïîäîáíûå îíòîãåíåòè÷åñêèå àíîìàëèè ìîãëè ïðèâîäèòü ê âîçíèêíîâåíèþ êëåïòîïàðàçèòè÷åñêèõ âèäîâ ï÷åë èç ãíåçäîñòðîÿùèõ âèäîâ.