Aedes (Aedimorphus) vexans (Meigen) WRBU specimen AEvex Resource Library/Aedes... · 2016-12-29 ·...
Transcript of Aedes (Aedimorphus) vexans (Meigen) WRBU specimen AEvex Resource Library/Aedes... · 2016-12-29 ·...
APHC Entomological Sciences Mosquito Species Page
Army Public Health Center (Provisional), Entomological Sciences Program / COM 410-436-3613 / DSN 312-584-3613 / Website: http://phc.amedd.army.mil / Approved for Public Release, Distribution Unlimited
Aedes (Aedimorphus) vexans (Meigen), WRBU specimen AEvex, Character descriptions: Carpenter and LaCasse, 1955: 263 ADULT FEMALE. Medium‐sized species. Pleura with ra‐ther small dis nct patches of broad flat grayish white scales. Scales on sternopleuron reach‐ing about halfway to anterior angle, separate from patch on prealar area. Mesepimeron with a patch of scales on upper part, lower one‐half bare. Hypos gial spot of scales absent. Lower mesepimeral bristles absent. (Carpenter and LaCasse 1955:243)
Thorax: Integument of scutum brown; scu‐tum clothed with narrow golden‐brown scales, with those on the anterior and posterolateral mar‐gins and the prescu‐tellar space paler. Posterior prono‐tum with curved golden‐brown scales. Scu‐tellum with narrow golden scales and light brown setae on the lobes.
Head: Proboscis dark‐scaled, lightly sprinkled with light‐brown scales ; palpi short, dark, the fourth segment with a few white scales at base and p. Occiput with narrow pale‐yellow to golden‐brown scales and dark and pale erect forked scales on median area, with broad whi sh or pale‐yellow scales laterally; a small submedian dark‐scaled patch near margin of eye on either side. Tori light brown or dark brown, with a few grayish‐white scales on dorsal and inner surfaces.
Mam
MS
Mks
PA
PS
P
MPlp
TA-274-0116
APHC Entomological Sciences Mosquito Species Page
Army Public Health Center (Provisional), Entomological Sciences Program / COM 410-436-3613 / DSN 312-584-3613 / Website: http://phc.amedd.army.mil / Approved for Public Release, Distribution Unlimited
Aedes (Aedimorphus) vexans (Meigen), WRBU specimen AEvex, Character descriptions: Carpenter and LaCasse, 1955: 263
ForeLeg.
HindLeg. Hind tarsi dark, with narrow basal white rings on all segments; front and middle tarsi similarly marked, but with white rings on segments 4 and 5 greatly reduced or absent.
Male head. Maxillary palpi as long as Proboscis. Antennae feather like.
Wing: Length 3.5 to 4.0 mm. Scales narrow, dark.
Abdo
men
: First tergite with
dark and pale sc
ales interm
ixed
on med
ian area; tergites II to VI dark‐scaled
, each
with
a con
spicuo
us inde
nted
basal white band and basolateral w
hite patches (b
asal bands usually not joining
the lateral patches); white sc
ales present on apical m
argins of the
last th
ree tergite
s.
Bionomics: Immatures are found in unshaded fresh water flood pools in secondary scrub, but have also been col‐lected in ditches, swamps, rice fields, and elephant foot prints. Habitats usually have li le aqua c vegeta on or algae. Females are night biters and readily feed on man and ca le (Reinert, 1973).
Medical Importance: Capable of transmi ng eastern equine encephali s virus (EEE), western equine encephali s virus (WEE), SLE, West Nile Virus (WNV) (Turell et al., 2005:60). It is also a vector of dog heartworm (Reinert, 1973). Troublesome biter. Flight range up to 10 miles.
Legs. Femora dark, with sca ered pale scales, posterior surface pale; knee spots pale. Tibiae dark, pale on posterior surface
APHC
WALTER REED BIOSYSTEMATICS UNIT
TA-274-0116