Abstract
A new species of fossil cockroach, Fragosublattapectinatagen. et sp. nov., is described from mid-Cretaceous Burmese amber. The new species is assigned to the family Corydiidae based on the following combination of characters: pronotum with tubercles, tegmina obovate with smallish anal region and spinules on the antero-ventral margin of the front femur (type C1). The new species is the second reported cockroach with ramified antennae. This finding broadens the diversity of Blattodea in mid-Cretaceous Burmese amber and provides further evidence of convergent evolution for antennal structures among different insect lineages.
Highlights
Blattodea is an order of insects consisting of cockroaches and termites (Inward et al 2007; Zhao et al 2019)
Diverse insects have been documented from the mid-Cretaceous Burmese (Myanmar) amber recently (Ross 2020, 2021)
An ecosystem with a humid climate in the midCretaceous enriched the diversity of cockroach species (Liang et al 2019)
Summary
Blattodea is an order of insects consisting of cockroaches and termites (Inward et al 2007; Zhao et al 2019). Guanyu Chen et al / ZooKeys 1060: 155–169 (2021). Diverse insects have been documented from the mid-Cretaceous Burmese (Myanmar) amber recently (Ross 2020, 2021). An ecosystem with a humid climate in the midCretaceous enriched the diversity of cockroach species (Liang et al 2019). 11 families, 28 genera and 36 species of cockroaches in Burmese amber have been documented as shown in Table 1 (Ross 2021). The specimens in Burmese amber give us an opportunity to better understand the morphological characters of ancient insects
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