The Orthoptera (Ensifera) from the Santana formation (Early Cretaceous, Northeast Brazil): A statistical and paleoecological approach, with description of new taxa
Author
Martins-Neto, Rafael Gioia
Author
Tassi, Lara Vaz
text
Zootaxa
2009
2080
21
37
journal article
10.5281/zenodo.187344
229e851e-7107-4628-b823-7bf467cc98ad
1175-5326
187344
Cearagrylloides perforatorius
Martins-Neto
,
n. comb.
(Pl. IIB;
Figs. 2
A, D, H.)
1.
Cearagryllus perforatorius
Martins-Neto, 1991
.
Specimens included.
CV-6015 (
holotype
), DGM-6281 (
paratype
), CD-I-41, CV-1020, and the supplementary material originally included, RGMN-662, CV-6015, CV-2429, and RGMN-901.
Additional specimens included. CV-1980, RGMN-506, and RGMN-507.
Specimens excluded.
CV-1699, RGMN-203, CD-I-123, and CV-257.
Emended diagnosis.
Females with robust body, varying from
29 to 32 mm
length; fore wing length varying from
28 to 32 mm
; ovipositor length varying from
32 to 36 mm
. Ovipositor 1.1 times longer than the body and/or the fore wing length. Relatively large and dorsally rounded head. Fore wing about three times longer than wide;
ScP
sigmoid, distally converging towards the costal margin and notably thickened basally;
R
parallel to
ScP
.
MP
two-branched; around nine
MP2
secondary branches.
r-m
present, connecting
R
to
MA
.
Discussion.
Following the examination of new supplementary material (especially well-preserved wings), several apomorphies of this species can be recognized, such as the sigmoid
ScP
, thickened at its base, as well as the presence of
r-m
, confirmed in all observed specimens.
Description
(supplementary material RGMN-506). Body and forewing length
32 mm
. Ovipositor length as preserved
32 mm
(total length ca.
36 mm
). Fore tibia smooth with a relatively long apical spur. Fore wing (
Fig. 3
A) three times longer than wide, with wide costal area, narrowing towards the apex, filled by rather long cross-veins and accessory veinlets forming a mosaic of heterogeneous cells.
ScP
sigmoid, thickened at its base, converging towards the costal margin around a quarter wing-length from the apex.
R
parallel to
ScP
.
M
three-branched. Presence of
r-m
connecting
R
to
MA
, situated at the mid length of the wing. At least nine
MP2
secondary branches, all connected by cross-veins, forming a mosaic of heterogeneous cells.
Remarks.
The specimen CV-1980, an isolated fore wing, was figured by
Martins-Neto (1991)
as belonging to
Cearagryllus poliacanthus
. Its wing venation is, in fact, virtually identical to that of
Cearagrylloides perforatorius
Martins-Neto (1991)
, to which species it is now transferred. The specimen CV- 257 does not exhibit sufficient diagnostic characters to be included in the species, being now considered
Cearagrylloides
sp.