Fragosublatta Chen, Shih & Ren, 2021

Chen, Guanyu, Xiao, Lifang, Liang, Junhui, Shih, Chungkun & Ren, Dong, 2021, A new cockroach (Blattodea, Corydiidae) with pectinate antennae from mid-Cretaceous Burmese amber, ZooKeys 1060, pp. 155-169 : 155

Genus Fragosublatta Chen, Shih & Ren gen. nov.

Diagnosis.

(male only). Sc field narrow (about a third of the width of the R region) with Sc short and branched. CuA almost straight with comb-like branches. CuP sharply curved. The first and the second hind tarsomeres with no plantulae but with spines. Cercus monoliform.

Etymology.

Fragosublatta is a combination of fragosus (Latin for fractured), referring to the fractured pronotum, and the generic name of Blatta . Gender is feminine.

Remarks.

The new species is assigned to the family Corydiidae based on these 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 genus is differentiated from other extinct genera mainly by the forewing and legs: CuA with comb-like branches and the first and the second hind tarsomeres apparently lacking plantulae but with spines. Besides, the subgenital plate of the new species is almost symmetrical, which is similar to Nodosigalea burmanica (Li & Huang, 2018), but the new species has comb-like CuA branches to justify the erection of a new genus.