L.bukowskii is distinguished from L.ragnari by its lack of hairs on the orbital plates above the orbital bristle and in the notopleural depression. In addition whereas L.ragnari usually has several stigmatical bristles, including a few which are hair like, the British specimens examined of L.bukowskii have two or three stigmatical bristles all equally strong. The squammal fringe in L.bukowskii is comprised of longer and more golden yellow hairs than in L.ragnari whose squammal fringe is relatively pale. The male genitalia and female ovipositor of L.ragnari are illustrated by Hackman (1956) . L.bukowskii was described by Czerny (1934) from a female specimen and females seem to predominate in the collected material. Czerny does note however that W. Bukowski caught 1male of this species on the 26th of August in the Leningrad (St. Petersburg) area of Russia but there appears to be no illustration of the male genitalia available in the literature.
The specimen in the Natural History Museum in London is also a female taken by R.L.Coe in Plitvice, Croatia between 4th and 10th July 1955. Kovalev and Morge (1984) only list Yugoslavia (presumably this is the Coe specimen from Croatia which was identified by Morge) and four areas of the then Soviet Union including the Ukraine and the Crimea as areas in which L.bukowskii has been recorded