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Aspericornis group.
·
Inner
portion of basipodite of 1st leg without seta
·
With
patterns of hair on 5th segment.
·
Caudal
rami with hairs (Alekseev, 2002a).
135 a. Caudal branch (ramus)
with media hairs on entire medial surface.
See further morphological details in
Zehra, A. and K. Altaff (2002).
Body size 1110-1600 μm.
The size difference may be due to the
difference in water chemistry, physical parameters as temperature
or the food available i.e. plankton concentration (Zehra,
A. and
K. Altaff, 2002)
Can suppress mosquito larvae
under experimental
conditions and are supposed to be an important weapon against
malaria. Research shows
that M. aspericornis females are good
biological control agents by
consuming about two-thirds of the
wild dengue mosquito larvae population. (Alekseev, 2002a,
Panogadia-Reyes
et al., 2004a). Found in
freshwater from small
containers of only a few litres to large lakes.
But general the
species is an epibenthic form dwelling in the littoral zones of
fresh waters, (Gutiérrez-Aguirre,
2002b). Further found in
rice fields (Kiefer, 1981c), marshes, karst holes, and
wells.
Pantropical species.
- Philippines, Luzon
Mesocyclops aspericornis
(DADAY,
1906)
[1981c
(with map), 1984b, 1986a,
2001d, 2002b,
2013].
135
b.
Caudal branch (ramus) with medial hairs only on proximal half.
Body length 1000 μm. With patterns of hair on 5th segment.
For more anatomical details see
Papa and Hołyńska’s redescription
(2013).
Found in limnetic habitats and closely related to
M. geminus
from East Borneo (Papa and Hołyńska
2013).
Endemic.
-
Manila, Northern Luzon, Sebu (Mindanao).
(sample by R. Woltereck from
Wallacea-expedition,
without further record)
Mesocyclops microlasius KIEFER, 1981
[1981c,
2002a, 2003a, 2013].
136
a. Only 5th segment with hairs....................................137.
136
b. Caudal rami with hairs on inner edge..........................140.
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137a