As I'm working on this group and try - with colleagues - to work on the phylogeny of this family (with subfamilies and more), is was nice to get more experience with more material from the period of that we have only very limited information.
Sincerely Rüdiger Wagner
Resins like ambar? I remember this pretty work, that summarize some species found inside amber pieces. But this article talk about Paleoleishmania, the first record about trypanosomatidae within sandflies midgut.
Article Lutzomyia adiketis sp. n. (Diptera: Phlebotomidae), a vector...
I don´t know if my answer helps, but many greetings Rüdiger Wagner
Dear Rüdiger, the study of dipterans preserved into the Spanish Cretaceous amber is coordinated by Dr. Antonio Arillo . Please, contact with him in order to know the possibilities to study the psycodids; I think that Dr. Arillo collaborate with Dr. Monica Solorzano Kraemer from the Senkemberg Museum in Frankfurt. All the best, Xavier
Find the book by Ross (ed.), 2010. It is a good catalogue on various amber localities.
Burmese (Myanmar) amber taxa, on-line checklist, by Ross - updates every 3 month.
And here: http://fossilworks.org/