Crickets of the genus Gryllus in the United States (Orthoptera: Gryllidae: Gryllinae)
Author
Weissman, David B.
Author
Gray, David A.
text
Zootaxa
2019
2019-12-05
4705
1
1
277
journal article
24722
10.11646/zootaxa.4705.1.1
3e84f284-4d30-4c6e-a801-f9822d49edfc
1175-5326
3563677
F534C43A-AB09-4CB3-9B08-FD5BDFD90298
Gryllus bryanti
Morse
Bahama Island Field Cricket
Figs 17
,
22
,
Table 1
FIGURE 22.
Left Panel:
G. bryanti
(on left) vs. sympatric
G. assimilis
(right), both from Bahamas. Note head wider than pronotum in
G. bryanti
.
Right Panel: Three second waveform of typical single-pulse chirp calling song of
G. bryanti
(neotype male, GBM08, Andros Island, at 25 °C).
Although not known from the
United States
, this cricket is endemic to the Bahama Islands, which are less than
80 km
away from the closest
US
location along the
Florida
coast. Since our earlier publication (
Weissman
et al.
2019
), we have documented this cricket on a third island in
the Bahamas
: San Salvador, 24.122279° -74.45678°,
23-i-2019
,
1♂
, N. Lee, deposited CAS.
Recognition characters and song.
Known only from 3 islands in
the Bahamas
. Body color as in
Fig. 22
.
Song
(
Fig. 22
) at 25°C typically with widely spaced single pulses delivered at 7–15/10 seconds at a pulse rate of 0.8– 2.1.
DNA
. GBM05, from Andros Island, multilocus appears (
Fig. 6
, p.
28
) to be one of several
Gryllus
near the base of a continental North American species group, distinct from the Afro-Eurasian
G. bimaculatus
and
G. campestris
Linnaeus. We
interpret this result cautiously, however, as we lack DNA samples for other geographically nearby species
G. jamaicensis
Walker
,
G. mandevillus
Otte & Perez-Gelabert
, and
G. bermudensis
Caudell
(probably most closely related to
G. firmus
[
Kevan 1980
]).