Journal of Mosquito Research, 2013, Vol.3, No.3, 14
-
20
ISSN 1927-646X
http://jmr.sophiapublisher.com
14
Research Report Open Access
Studies on
Armigeres subalbatus
Mosquitoes in Tribal and Non-tribal Areas
of Bankura District, West Bengal, India
Swapan Kumar Rudra
1
,
Manas Paramanik
2
,
Goutam Chandra
3
Mosquito and Microbiology Research Units, Parasitology Laboratory, Department of Zoology, The University of Burdwan, Burdwan-713104, West Bengal,
India
Corresponding author email:
goutamchandra63@yahoo.co.in
;
Authors
Journal of Mosquito Research, 2013, Vol.3, No.3 doi: 10.5376/jmr.2013.03.0003
Received: 03 Jan., 2013
Accepted: 11 Jan., 2013
Published: 16 Feb., 2013
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction
in any medium, provided the original work is properly cited.
Preferred citation for this article:
Rudra et al., 2013, Studies on
Armigeres subalbatus
mosquitoes in tribal and non-tribal areas of Bankura district, West Bengal, India, Journal of Mosquito
Research, Vol.3, No.3 14
-
20 (
doi: 10.5376/jmr.2013.03.0003)
Abstract
Armigeres subalbatus
is known to be the vector of parasites for many human diseases like malaria, Japanese encephalitis,
filariasis etc. Indoor-resting and man-landing collections were made for one year both from tribal and non-tribal areas of Bankura
district, West Bengal, India. In tribal area indoor-resting collection of
Ar. subalbatus
in one year was only 18 (1.65% of the total catch)
with man-hour density (MHD) of 0.38 and in non-tribal area the figure was 489 (14.82%) with MHD of 10.19. A total of 37
Ar.
subalbatus
(0.62%
of total catch) with MHD of 0.06 were caught off man baits from indoor and outdoor locations in tribal area and
the number was 3 177 (16.71%) in non-tribal areas with MHD of 5.52. Indoor-resting and man-landing collections were highest in
October in tribal area and in April in non-tribal area. The maximum number of
Ar. subalbatus
came in contact with man in first and
fourth quadrants of both day and night. No human parasite including filarial one was detected within this mosquito throughout the
year long study period (August 2009 - July 2010) in both the areas.
Keywords
Armigeres subalbatus
;
Tribal and non-tribal; Man-hour density; Man-landing rate
Introduction
Armigeres subalbatus
is widespread in rural and urban
areas of India. It comes to bite especially in the day and
also at night (Das et al., 1971; Ghosh and Hati, 1980;
Das et al., 1983). The biology of Ar. subalbatus was
studied in Pondicherry (Bai et al., 1981) and in
Singapore (Barr, 1964). It was observed in the
laboratory that microfilariae of
Brugia malayi
and
Wuchereria bancrofti
were taken by
Ar. subalbatus
(
Iyenger, 1938; Rajagopalan et al., 1977). In this
mosquito species natural infection of
W. bancrofti
was
found in India (Horsfall, 1955; Ghosh and Hati, 1966)
and of
B. pahangi
was found in suburbia of Kuala
Lumpur (Tan et al., 2011). Bankura district of West
Bengal in India is known to be endemic for lymphatic
filariasis caused by
W. bancrofti
(
Rudra and Chandra,
2000;
Chandra and Paramanik, 2008; Paramanik and
Chandra, 2009).
Present study was performed to know the percentage,
man-hour density (MHD) and seasonal variation of
Ar.
subalbatus
in indoor-resting and man-landing
collections in both tribal and non-tribal locations
along with man-landing rates in a comparative basis
with a view to gather information on the biological
behavior of this mosquito. The capability of carrying
any human parasite by the natural population of this
mosquito was also observed.
1
Result
During indoor-resting collection, out of 1 088
mosquitoes of 7 species in tribal area and 5 279
mosquitoes of 10 species in non-tribal area,
Ar.
subalbatus
was 18 (1.65%) and 489 (14.82%)
respectively as shown in Table 1. Average MHD of
Ar.
subalbatus
was 0.38 in tribal area and 10.19 in non-tribal
area among other mosquito species (Figure 1). The
highest number (5) of
Ar. subalbatus
was collected in
October in tribal area and it was (52) in April in
non-tribal area (Table 2). Season wise analysis showed
that, in rainy, winter and summer seasons number of
indoor resting
Ar. subalbatus
were 5 (27.78%), 6
(33.33%)
and 7 (38.89%) respectively in tribal areas and
172 (35.17%), 180 (36.81%)
and 137 (28.02%)
respectively in non-tribal areas (Figure 2).