A monospecific assemblage of cockroaches (Dictyoptera: Subioblattidae) from the Triassic of Kyrgyzstan.

Seven known species of the Triassic family Subioblattidae Schneider, 1983 reveal a cosmopolitan paleogeographic range (Argentina, South Africa, China, France, Kazahstan and Kyrgyzstan). A monospecific assemblage of Subioblatta madygenica Papier and Nel, 2001 from the Middle–Late Triassic Madygen locality in Kyrgyzstan is described here. All specimens exhibit characters typical for Subioblattidae such as an elongated costal field, ribbon-like subcostal field, Sc with pectinate branches inclined apically, sigmoidal R with undulating branches, variable M, sigmoidal CuA with branches subperpendicular to wing margin and a long anal field with a unique diagonal groove. Highly preserved coloration on wings of several specimens is comparable to that of S. madygenica. The described material enhances our knowledge of Triassic cockroaches and affirms Madygen as one of the most important Mesozoic insect lagerstätte. [ABSTRACT FROM AUTHOR]