Cryptocearagryllus, Martins-Neto, Rafael Gioia & Tassi, Lara Vaz, 2009

Martins-Neto, Rafael Gioia & Tassi, Lara Vaz, 2009, The Orthoptera (Ensifera) from the Santana formation (Early Cretaceous, Northeast Brazil): A statistical and paleoecological approach, with description of new taxa, Zootaxa 2080, pp. 21-37 : 26

Cryptocearagryllus n. gen.

Etymology. Crypto, from Latin, hidden, and Cearagryllus , the closest genus

Type species. Cearagryllus revelatus Martins-Neto, 1999 , designated here.

Diagnosis. Male tegmen with square rounded speculum. Two specular veins parallel to anal margin. Double diagonal vein. Both lanceolated cell and cua-m absent. CuP secondary branches aligned with the specular cross-veins and several CuA secondary branches.

Discussion. Similar to Cearagryllus and Notocearagryllus in having two specular veins parallel to the anal margin and double diagonal vein, differing however in the square-rounded speculum shape. Similar to Allocearagryllus n. gen. in having a rather square speculum, differing however in the speculum having a more central position, with both anterior and posterior margins parallel to the anal margin. d1 is similarly deflected to the speculum, although is notably longer. Cryptocearagryllus n. gen. has a wider costal area than Allocearagryllus n. gen., and a complex pattern of chords, especially between the diagonal veins and the posterolateral margin of the speculum, where the long cross-veins (apparently secondary branches of CuP) are aligned with the specular veins. Lanceolated cell absent. cua-m absent, although CuA slightly sinuous as in Notocearagryllus . The wide area filled with parallel cross-veins below the speculum is absent. CuA with several secondary branches, converging towards the costal area. Cryptocearagryllus n. gen. shares morphological characteristics with Notocearagryllus (the area below the speculum totally filled by perpendicular cross-veins) as well as Allocearagryllus (d1 deflected to the speculum), and Cearagryllus (CuP and 1A at the chords slightly curved). Cryptocearagryllus n. gen. differs from Cearagryllus as well as Notocearagryllus in lacking a d2 deflection to CuA and in the speculum shape (rather trapezoidal in Cearagryllus and Notocearagryllus , square-rounded in Cryptocearagryllus n. gen. and Allocearagryllus ), and by the absence of a wide area filled with long cross-veins below the speculum. Cryptocearagryllus n. gen. differs from Allocearagryllus in having a notably long d1 (short in Allocearagryllus ) and d2 just slightly curved (strongly curved in Allocearagryllus ). The CuP secondary branches aligned with the specular crossveins (apomorphic) and several CuA secondary branches (plesiomorphic) are morphological characters unique to Cryptocearagryllus .