Kifune & Hirashima 1987. Three new species of the genus Paraxenos (Strepsiptera: Stylopidae) parasitic on Bembix (Hymenoptera: Sphecidae) of Sri Lanka and Australia in the collection of the Smithsonian Institution. (Noctulae Strepsipterologicae-17). Esakia, No. 25 1987: 155-160