L11: Lab 2 Flashcards

1
Q

hard ticks (ixodid) have a ____ stage life cycle

A

4 stages
egg
larva (6 legs)
nymph (8 legs)
adults (8 legs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Idoxes spp. have a _______ scutum, meaning…

A

inornate
meaning it lacks white, silver or gray coloration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ixodes spp. have a ______ basis capituli and ______ palps

A

rectangular
long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what species of Ixodes is this

A

Ixodes scapularis
= eastern black legged deer tick

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what species of Ixodes is this

A

Ixodes pacificus = western black legged tick

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Rhipicephalus spp. have a _____ scutum, a _____ basis capituli and _____ palps

A

inornate scutum
hexagonal basis capituli
short palps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the only member of the genus Rhipicephalus that occurs in North America

A

Rhipicephalus sanguineus
brown dog tick

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

based on the shape of the this basis capituli (and the short palps), what species of tick is this

A

Dermacentor b/c rectangular basis capituli and short palps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

based on the shape of the this basis capituli (and the short palps), what species of tick is this

A

Rhipicephalus b/c hexagonal basis capituli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what tick is this, how can you tell

A

Rhipicephalus sanguineus
inornate scutum
hexagonal basis capituli
short palps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what tick is this, how can you tell?

A

Dermacentor spp.
ornate scutum
rectangular basis capituli
short palps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what tick is this, how can you tell?

A

Ambylomma spp.
ornate scutum
rectangular basis capituli
long palps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the 4 common tick genera found in the USA

A
  • Ambylomma
  • Dermacentor
  • Ixodes
  • Rhipicephalus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what genera of tick have an ornate scutum

A

Ambylomma
Dermacentor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what genera of ticks have an inornate scutum

A

Ixodes
Rhipicephalus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how can you tell Ambylomma genera apart from Dermacentor

A

Ambylomma have long palps, whereas Dermacentor have short ones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How can you tell Ixodes apart from Rhipicephalus

A

Ixodes have long palps while Rhipicephalus have short ones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

compared to hard ticks, soft (argasid) ticks are less commonly associated w/ _______ and transmit fewer ______

A

domestic animals
infectious agents

19
Q

do soft (asgarid) ticks have a scutum

20
Q

explain the soft tick life cycle

A

6 legged larval stage
multiple 8 legged nymphal stages

21
Q

in what species of soft ticks are only the larvae and nymph stages parasitic?

22
Q

the Argas spp. genera have a well defined __________ that the other 2 soft tick genera found in the US lack (Ornithodoros, Otobius)

A

lateral suture

23
Q

what is this tick, where is it found in the US

A

Argas persicus
found along Gulf Coast and Mexican border

24
Q

genera of tick that has a thick rounded body margin and a toothed hypostome

A

Ornithodroros spp.

25
what species is this tick
*Ornithodoros turicata*
26
what genera of tick has a thick, rounded body margin , a constriction at the midline and non-functional mouthparts with a reduced and toothless hypostome
*Otobius spp.*
27
compared to hard and soft ticks, parasitic mites are ____
TINY <1mm in length
28
what is the life cycle of a mite
six legged larval stage one or more 8 legged nymphal stages **entire lifecycle occurs on same host**
29
what genera of mites is this
***Demodex*** * elongated body * stumpy legs * lack of hair like extensions
30
what genera of mites have a roud, circular body shape, setae and other filamentous extensions on their body and legs. They also have a ventral anus
***Sarcoptes***
31
how to tell Sarcoptes apart from Notoedres
*Sarcoptes* are larger and have a ventral anus
32
this genera of mites are morphologically very similar to *Sarcoptes* mites but are _______ and have a _____ anus
smaller dorsal anus
33
genera of mites with an oval shaped body and long legs; they parasitize the outer surface of skin of their hosts
***Otodectes***
34
what are the 2 major groups of lice
* Chewing (Mallophagan) * Sucking (Anopluran)
35
Chewing (mallophagan) lice afflict _______ and _______
birds and mammals
36
Sucking (Anopluran) lice only parasitize _______
mammals
37
since lice are highly host specific, knowing the _______ on which a louse is found helps to ID the louse
host species
38
explain the life cycle of lice
the entire louse life cycle occurs on the same host, the eggs (nits) attach to the hosts hair/feathers and 3 nymphal stages precede the adult stage
39
what group of lice has a head that is narrower than its prothorax
Sucking lice (anopluran)
40
what group of lice has a head that is wider than its prothorax
Chewing lice (mallophagan)
41
what species of lice is this
*Heterodoxus spiniger* (Chewing lice)
42
what species of lice is this
*Linognathus setosus* (Sucking lice)
43
_______ are wingless, laterally compressed insects that parasitize birds and mammals
fleas
44
what is the only parasitic stage of the flea life cycle
adult