From the introduction:
"After having started to review the tiger moths of Thailand, we encountered certain problems not expected before. There are no special works about this group of insects in Thailand as of yet, with only a few comments found in the usual literature. [...] Looking for additional materials for our book we examined especially the collections of the British Museum of Natural History, the Alexander Konig Museum Bonn (MAKB), the Museum Witt in Munchen (Munich) (MTWM), the collection of S. Ihle, Stuttgart, A. Haunstein (CAH), Untermunkheim and some other smaller collections. In the BMNH some types and an important part of the subfamily Lithosiinae collected recently are deposited. The Museum Witt, Munich, contains an extensive material collected in the course of some Hungarian expeditions which we had the opportunity to examine. In the examined collections, except tor BMNH, only the "big Arctiidae'" from the northern part of Thailand were well represented but there was hardly any material from the southern provinces. To gather the lacking material we organized some trips to different parts of Thailand. In the north, we looked especially for the small species, in the south for all Arctiidae. [...] Our own expeditions were organized in the months between November and June for which we have hardly any information on the wet weather period: from June to October. The recently collected materials without deposited details are deposited in the collection of Karel Černý, Innsbruck (CKC). We were able to solve some systematic problems with rearing experiments. Most of the big 'A'rctiidae'' can be reared with synthetical food according to Bopre or with the leaves of Taraxacum (Cichoriaceae). The rearing of many species of the subfamily Lithosiinae is easy with the algae growing on tree bark. Our work is intended to be just an introduction to the topic because we did not have enough time to delve into the details of many genera, especially for manufacturing and evaluation of additional important preparations of genitalia. We plan to do supplementary works sometime in the future after the review of complex groups like Diduga, Garudinia, Lyclene and Aemene and after the evaluation of male and female genitalia. We plan to make additional collecting trips to some parts of the country and to rear many species in which the determination of relationships among them is not solved yet."