1) Arrenotoky 
Arrhenotoky also known as arrhenotokous parthenogenesis is a form of parthenogenesis in which unfertilized eggs develop into males. The set of processes included under the term arrhenotoky depends on the author. Arrhenotoky may be restricted to the production of males that are haploid, or include diploid males that permanently inactivate one set o...
(from the article `hymenopteran`) Parthenogenesis, which occurs in many insect orders, is particularly common in the Hymenoptera and can occur in three forms: arrhenotoky, thelytoky, ...
That pattern or mode of reproduction in which progeny of both sexes are produced by mated females, the egg when unfertilised producing a viable haploid male and when fertilised producing a viable diploid female, a common condition in Hymenoptera.
arrhenotoky, arrhenotocy The parthenogenetic production of male offspring.
parthenogenesis in which only males are produced.