Haplothrips biroi (Priesner) is known from several southern European countries and is here newly recorded from southwestern Slovakia. The host plant is confirmed as Ballota nigra Lamiaceae, with 107 female and 25 male adults collected, and the species successfully reared on the host leaves. Key morphological features of adults and larvae are illustrated, and the ecological implication of the record briefly discussed.
Balcerčík et al. (Mon,) studied this question.