Redescriptions of two incompletely described species of mole cricket genus Gryllotalpa (Grylloidea; Gryllotalpidae; Gryllotalpinae) from China with description of two new species and a key to the known Chinese species
Author
Ma, Libin
Author
Zhang, Yalin
text
Zootaxa
2011
2733
41
48
journal article
10.5281/zenodo.202424
48b48ae1-cbbc-4d10-86d8-4d5668258575
1175-5326
202424
Gryllotalpa breviabdominis
sp. nov.
(Figs. A3, B3, C3, D3)
Type
material.
Holotype
male,
China
:
Henan, Lushi County, Lushi Mountain,
23-August-2008
, coll. Huang Jianhua (
NWAFU
).
Diagnosis.
Male. Small, stout and abdomen short. Ocelli flat and not very large. Pronotum 1.2 times longer than width. Tegmen similar to that of
G. henana
, but c1 nearly three times size of c2, and vein at the base of R s rounded. Stridulatory files sinuate, conspicuously dilated at the corner of inside part; teeth dispersed at dilated corner and sparse outside and medially; inside corner armed with 32 teeth (10 large teeth and 22 small teeth), small teeth located alongside or between large teeth. This specimen with left tegmen over right.
Hind
wings similar to that of
G. henana
.
Hind
tibiae armed with 3 internal preapical spines. Genitalia: similar to
G. henana
, but thicker and larger. Transverse sclerite wide and short, more open between two sclerites than
G. henana
; epiphallus conspicuously wider and lower part well-curved; ectophallus paramere broad and somewhat rectangular, internal process of paramere, upward pointed, spicula-like and distinctly thinner and longer than what of
G. henana
.
FIGURES C. 1–4.
Stridulatory files, a. whole illustration of file; b. the inside part of file: 1.
G. jinxiuensis
; 2.
G. henana
; 3.
G. breviabdominis
nov. sp.
; 4.
G. cycloptera
nov. sp.
.
Coloration:
Body brownish, but fore and media legs in light color, mostly yellow. Ocelli gray.
Measurements:
BL 18, PL 6.5, PW 5.5, PI 1.18, FWL 8.6, FWW 2.7, HWL 4.5, HLL 6.5, SAL 3.4, SAW 1.7, SFL1.6, NST 67.
Etymology:
The specific epithet “
breviabdominis
” refers to the relatively shorter abdomen.
Remarks:
The species is similar to
G. henana
, but they differ as compared above. It is also same for
Gryllotalpa pygmaea
Ingrisch, 1990
but they are very different in that the tegmen veins and the ectophallus paramere of
G. pygmaea
arms are obviously lower process below the internal process, but this is very small and inconspicuous in the new species. This new species is related to
Gryllotalpa wudangshanensis
Li
et al.
, 2007
and
Gryllotalpa mabiana
Ma
et al.
, 2008
, but its inside corner of stridulatory file is very dilated and armed 32 teeth while in those two species, it is narrower and armed with not more than 12 teeth. All genitalia of the new species and its related ones are distinct from each other.
FIGURES D. 1–4.
Genitalia, a. in ventral view; b. in front view; c. in lateral view; d. in dorsal view: 1.
G. jinxiuensis
; 2.
G. henana
; 3.
G. breviabdominis
nov. sp.
; 4.
G. cycloptera
nov. sp.