Biology Reference
In-Depth Information
Table 2.10
Duration of Various Events in the Life Cycle of Haemaphysalis obesa
Events
Duration
Host
Female feeding
6
10
Calves
4
8
Pre-oviposition
15
21
Oviposition
45
58
Egg hatching (from commencement of oviposition)
Pre-larval feeding (optimum period)
15
20
Larval feeding
2
6
Chicks
Larva
nymph molt
8
12
Pre-nymphal feeding (optimum period)
20
30
Nymphal feeding
3
6
Chicks
Nymph
adult molt
12
14
From West Bengal, specimens were obtained from Himalayan foothills from
Jalpaiguri district. The climate of the forest in this area is about 36
Cinsummerand
monsoon while 7
C in winter. Relative humidity is high with frequent rain showers.
Michelia champaca is one of the dominant vegetation in this forest (at 490 ft altitude).
From Assam, it was collected from the capped monkey Presbytis pileatus subspecies,
at around 1,560 ft altitude on the Garo hills of the Rongrengiri area.
Host
76
Immature stages: Crawling on human, bear.
Adults: Cattle, capped monkey, human, Tibetan black deer, barking deer, wild
boar, Malayan tapir, bear.
Distribution
76
India (West Bengal, Meghalaya, Assam), Thailand, Malaysia, Republic of Vietnam.
Disease Relationship
Not known.
2.10 Subgenus Rhipistoma
This is probably the most recent haemaphysaline subgenera according to evolution-
ary plan. Adults of 13 of 27 Rhipistoma species are exclusive parasites of carni-
vores. All Rhipistoma immature stage and adult palpi are broadly expanded
posteriorly; many are modified by spurs or grooves as hair-hooking devices. The
basis capitulum has small to large cornua. Coxal and trochantal spurs are unspecial-
ized, generally small or even obsolete.