The spectra of all investigated systems are as expected for their respective class.
The orbital ephemeris of LS IV lsi1" class="mathmlsrc">−08° 3 have been improved.
Doppler mapping of LS IV lsi1" class="mathmlsrc">−08° 3 reveal distinct emission sites (outer accretion disk and illuminated secondary star).
Tentative orbital periods of 0.21462 days and 0.229 days are derived for HQ Mon and ST Cha, respectively.
Light curves of all systems are discussed.