A review of Gryllidae (Grylloidea) with the description of one new species and four new distribution records from the Sindh Province, Pakistan
Author
Sultana, Riffat
Department of Zoology, University of Sindh, Jamshoro, Sindh, Pakistan
riffat.sultana@usindh.edu.pk
Author
Sanam, Surriya
Department of Zoology, University of Sindh, Jamshoro, Sindh, Pakistan
Author
Kumar, Santosh
https://orcid.org/0000-0002-4748-4087
Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Punjab, Pakistan
Author
R, Sheik Mohammad Shamsudeen
Department of Zoology, Sir Syed college, Kannur University, Kerala, India
Author
Soomro, Fakhra
Department of Zoology, Shah Abdul Latif University, Khairpur, Sindh, Pakistan
text
ZooKeys
2021
2021-12-15
1078
1
33
http://dx.doi.org/10.3897/zookeys.1078.69850
journal article
http://dx.doi.org/10.3897/zookeys.1078.69850
1313-2970-1078-1
573D406716A24E20859D354DFAF83B4D
7750940F8C815500968DBCC909A8E406
Gryllodes sigillatus Walker, 1869
Figures 1
, 2
, 3
, 4
, 5
, 6
, 7
, 8
, 9
, 10
, 11
Material examined.
Pakistan
,
Sindh Prov.
•
2♀
;
Riffat
;
14 Jul. 2020
; Mithi
24.7436°N
,
69.8061°E
,
1♂
,
8♀
;
Surriya
,
Riffat
;
19 Jul. 2020
; Naushahro feroze
26.8463°N
,
68.1253°E
,
3♂
,
15♀
;
Riffat
;
2 Sep. 2019
; Chachro
25.1156°N
,
70.2557°E
,
9♂
,
12♀
;
Riffat
,
Surriya
;
13 Aug. 2020
; Umerkot
25.3549°N
,
69.7376°E
,
6♂
,
7♀
;
Surriya
,
Riffat
;
16 Aug. 2020
; Nagarparkar
24.3572°N
,
70.7555°E
,
5♀
;
Riffat
,
Surriya
;
4 Sep. 2020
; Tharparkar
24.8777°N
,
70.2408°E
.
Description.
Medium size, depressed, rather strongly pubescent (Fig.
1H
). Head brown with wider, transverse yellowish bands on dorsal field; anterior narrow band curved between ocelli; face short, yellow; clypeus spotted with brown, front with feeble suture (Fig.
2H
). Pronotum transverse with concave anterior margin; disc almost straight; yellowish with wide brown band along posterior margin and a more or less important spot of the same colour on the impressus (Fig.
4H
). Elytra extending to 1/3 of abdominal tergite, truncated, rounded at apex; mirror quite apical, little wider than long, rounded posteriorly; wings reduced (Fig.
9B
). Abdomen brown in the male (Fig.
1H
).
Male
: LH 2.8
+/-
0.72 (mm), LP 3.25
+/-
0.62 (mm), LT 4.1
+/-
5.2 (mm), LF 11.5
+/-
1.0 (mm), LT 8.0
+/-
0.57 (mm), TBL 14.5
+/-
1.0 (mm)
Female
: LH 2.10
+/-
0.8 (mm), LP 3.32
+/-
0.72 (mm), LT 4.3
+/-
5.7 (mm), LF 12.5
+/-
1.2 (mm), LT 8.2
+/-
0.62 (mm), TBL 18.6
+/-
2.1 (mm).
Ecology.
It commonly found everywhere but surprisingly, a single male only was reported during the present survey. Usually, this species is found in homes and lives under bricks and debris, and also in kitchens.
Global distribution.
Australasia, Australia, Malaysia, West Bengal, USA, India, Pakistan (
Cigliano et al. 2020
).
Remarks.
Gryllodes sigillatus
is cosmopolitan in nature. This species is generally known as the tropical house cricket or Indian house cricket because they are found everywhere, domestic in all tropical countries.
Khan (1954)
reported that it caused huge damage to textiles mills in India. During our field survey we observed that this species moves at dusk from the holes of a termite mound. However, this species is not termitophilous in nature like other insects; it does not live with the termites.