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Parasitology II > Photo ID > Flashcards

Photo ID Flashcards

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1
Q

Bovine or Ovine Abomasum
20-35 mm

A

Haemonchus spp
- Male: spicules equal, asymmetric dorsal lobe of bursa
- Female: “Barber pole” if fresh specimen, vulvar flap

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2
Q

Bovine or Ovine Abomasum
6-12 mm

A

Ostertagia ostertagi
- Male: spicules equal

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3
Q

Bovine or Ovine Abomasum
5-8 mm

A

Trichostrongylus axei
- Male: spicules unequal in length
- Female: prominent ovejectors

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4
Q

Bovine or Ovine Abomasum

A

Strongyle
Hemonchus spp., Ostertagia ostertagi, Trichostrongylus axei

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5
Q

Bovine or ovine small intestine
5-8 mm

A

Trichostrongylus spp.
- Male: spicules equal
- Female: prominent ovejectors

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6
Q

Bovine or ovine small intestine
5-11 mm

A

Cooperia spp.
- Cephalic cuticular inflation
- Male: short spicules, large bursa

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7
Q

Bovine or ovine small intestine
8-25 mm

A

Nematodirus spp.
- cephalic cuticular inflation
- Male: long thin spicules

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8
Q

Bovine or ovine small intestine
12-26 mm

A

Bunostomum spp.
- large buccal capsule (hookworm)

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9
Q

Bovine or ovine small intestine
< 5 mm

A

Strongyloides papillosus
- Females: filariform pharynx 1/3rd of body length

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10
Q

Bovine or ovine small intestine

A

Strongyle
Trichostrongylus spp., Cooperia spp., Bunostomum spp.

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11
Q

Bovine or ovine small intestine
- 140 um, large foot-ball shaped eggs w/ extra space

A

Nematodirus spp.

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12
Q

Bovine or ovine small intestine
~ 50 um small, larvated eggs with a thin shell

A

Strongyloides papillosus

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13
Q

Bovine or ovine small intestine
many cm

A

Moniezia
- four suckers but no hooks; segments wider than long, each w/ 2 sets of reproductive organs

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14
Q

Bovine or ovine small intestine/ also in biliary system
many cm, with posterior fringe

A

Thysanosoma
- four suckers but no hooks; segments wider than long, each w/ 2 sets of reproductive organs, same as Moniezia but w/ posterior fringe on each segment

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15
Q

Bovine or ovine small intestine

A

Moniezia
- hexacanth larvae w/in pyriform apparatus

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16
Q

Bovine or ovine small intestine/ also in biliary system
- as for Moniezia but in packets

A

Thysanosoma

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17
Q

Bovine or ovine large intestine
8-21 mm

A

Oesophagostomum spp.
- anterior cuticular collar
Male: long spicule

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18
Q

Bovine or ovine large intestine
50-80 mm

A

Trichuris spp.
- whip-shaped

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19
Q

Ovine large intestine
10-20 mm

A

Chabertia ovina
- v large buccal capsule
- Male: long spicule

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20
Q

bovine & ovine large intestine

A

Strongyle
Oesophagostomum spp., Chabertia ovina (sheep)

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21
Q

yellow brown, lemon shaped eggs w/ bipolar plugs

A

Trichuris spp

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22
Q

Bovine & Ovine Liver & Biliary System
< 5 cm

A

Fasciola hepatica
- oral & ventral suckers, shoulders at level of ventral sucker

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23
Q

Bovine & Ovine Liver & Biliary System
< 10 cm

A

Fascioloides magna
- oral & ventral suckers, v large

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24
Q

Bovine & Ovine Liver & Biliary System
10-14 mm

A

Dicrocoelium dendriticum
- oral & ventral suckers, v small, may see eggs inside

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25
Bovine & Ovine Liver & Biliary System ~140x75 um, operculate, thin-shelled, large, yellow eggs
Fasciola hepatica
26
Bovine & Ovine Liver & Biliary System ~140x85 um, operculate, thin-shelled, large, yellow eggs
Fascioloides magna - same as Fasciola, but bigger
27
Bovine & Ovine Liver & Biliary System ~40 um, operculate, thick shelled, dark brown, small eggs
Dicrocoelium dendriticum
28
Dorsal spined larvae - Muellerius in Ov & Cap - Parelaphostrongylus spp. in wild cervids
29
Protostrongylus or spike tailed larvae - Protostrongylus in bighorn and thinhorn sheep - Orthostrongylus in wild cervids
30
Dictyocaulus larvae - D. viviparous in cattle - D. filaria in sheep
31
Bovine respiratory system 5-8 cm - thin white nematodes in large airways - larvae have granular appearance, blunt pointed tail
Dictyocaulus viviparus
32
Ovine respiratory system 5-8 cm - thin white nematodes in large airways - larvae have granular appearance, blunt pointed tail, pimple on mouth
Dictyocaulus filaria
33
Ovine & Caprine respiratory system 10-20 mm - brown & white nematodes in nodules in lung parenchyma or airways - larvae may have kinked tail w/ dorsal spine
Protostrongylids
34
Bovine & Ovine Skin 5-8 mm
Stephanofilaria stilesi - small, spindle shaped nematodes in ventral midline
35
Bovine & Ovine Skin - Microfilaria in skin
Stephanofilaria stilesi
36
Bovine & Ovine Peritoneal Cavity up to 10 cm
Setaria spp. - thin white nematodes in peritoneum
37
Bovine & Ovine Peritoneal Cavity - ensheathed, microfilaria in blood
Setaria spp.
38
Bovine & Ovine Protozoan
Tritrichomonas foetus Stage: Trophozoites ~25 um Pear shaped, three anterior flagellae
39
Bovine & Ovine Protozoan
Giardia spp Stage: Trophozoites, Cysts - Pear shape, 2 nuclei, & 4 flagellae - ~12 um oval, central axis, & 4 nuclei
40
Bovine & Ovine Protozoan
Eimeria spp. Stage: Oocysts - 22-35 um, thin smooth shell, sporulated: 4 sporocysts w/ 2 sporozoites
41
Bovine & Ovine Protozoan
Cryptosporidium spp. stage: oocysts - round, oval, v. small (4 um). 4 sporozoites
42
Ovine Protozoan
Toxoplasma gondii Stage: Tachyzoites (tissue) - crescent shape, central nucleus Bradyzoites (tissue cycsts) - rount, thin-wall, nucleus posterior
43
Ovine Protozoan
Toxoplasma gondii Stage: Oocysts (feces) - 10 um, sporulated: 2 sporocysts w/ 4 sporozoites
44
Bovine Protozoan
Neospora caninum Stage: Tachyzoites (tissue) - various shapes (round, cresent) Bradyzoites (tissue cysts) - round, thick-walled
45
Bovine Protozoan
Neospora Caninum Stage: oocysts (feces) - 7 um, sporulated: 2 sporocysts each w/ 4 sporozoites
46
Bovine & Ovine Protozoan
Sarcocystis spp. stage: sporocysts - ~10-15 um, 4 sporozoites/sporocyst
47
Bovine & Ovine Protozoan
Sarcocystis spp. Stage: Sarcocysts (tissue) - often oval, contain bradyzoites
48
Nematodirus spp, Thysanosoma spp, Fasciola hepatica, Fascioloides magna, Trichostrongyles (strongyle type egg)
49
Trichuris spp., Moniesia spp., [Strongyloides papillosus, Dicrocoelium dendriticum, Eimeria bovis, Eimeria zuernii] -[seen at 10x but need 40x to confirm]
50
Giardia spp., Cryptosporidium spp. (need 40x to see these)
51
Diagnostic characteristics of lice?
dorsoventrally flattened, 6 legs as adults
52
Diagnostic characteristics of sucking lice?
pointed head that is narrower than thorax
53
Diagnostic characteristics of biting lice?
broad head, wider than thorax
54
Bovine & Ovine Lice - found on surface, haircoat
Lignognathus spp. Sucking lice - long-nosed, shorter length of 1st pair of legs
55
Bovine Lice - found on surface, haircoat
Haematopinus spp. sucking lice - short-nosed, all legs same length
56
Bovine & Ovine Lice - found on surface, haircoat
Damalinia spp. Biting lice - convex head
57
Diagnostic characteristics of mites?
- dorsoventrally flattened, small, 8 legs as adults & nymphs, 6 as larvae
58
Bovine & Ovine mites - found on surface, haircoat - pedicel is long & jointed
Psoroptes - long legs
59
Bovine & Ovine mites - found on surface, haircoat - pedicel is short & unjointed
Chorioptes - long legs
60
Bovine & Ovine mites - found burrowing in epidermis - pedicel is long & unjointed
Sarcoptes - short legs, posterior terminal anus
61
Bovine & Ovine mites - found burrowing in hair follicles
Demodex - short legs, cigar shape
62
Who's pedicel is this?
Psoroptes
63
Who's pedicel is this?
Sarcoptes
64
Who's pedicel is this?
Chorioptes
65
Diagnostic characteristics of ticks?
Dorsoventrally flattened, large, 8 legs as adults & nymphs, 6 as larvae
66
Bovine & ovine ticks - found on surface & in ears
Otobius megnini (spinose ear tick) - soft tick - ventral capitulum, no scutum, only larvae & nymphs are parasitic, spiny, fiddle shaped
67
Bovine & ovine ticks - found on surface in haircoat
Dermacentor spp. - Moose or winter tick, Rocky mountain wood tick, American dog tick - ornate, festooned, short blunt capitulum, white splatter over scutum
68
Bovine & ovine ticks - found on surface in haircoat
Amblyomma americanum - lone star tick - ornate, festooned, long parallel capitulum, female has single yellow dot on scutum, male has yellow streaks on festoons - foreign to Canada
69
Bovine & ovine ticks - found on surface in haircoat
Ixodes spp. - black legged or deer ticks - inornate, no festoons, long parallel capitulum, anal groove anterior to anus
70
Bovine & ovine ticks - found on surface in haircoat
Haemaphysalis longicornis - Asian long-horned tick - inornate, festoons, short angled capitulum - foreign to Canada
71
Name the structures
Scutum, eye, festoons
72
Structures on ventral male
Anal groove, anus
73
structure?
spiracle - can be used to tell Dermacentor ticks apart
74
ID
Dermacentor veriablis
75
ID
Dermacentor andersoni
76
ID
circular spiracle of Dermacentor albipictus w/ few, large goblet cells
77
Diagnostic characteristics of flies?
6 legs as adults
78
Flies of Bovine & Ovine 4-6mm
Melophagus ovinus (keds) Feeding fly - wingless, brown, body covered w/ setae, terminal claws
79
Flies of Bovine & Ovine 1-4 mm
Culicoides (midges) Feeding fly - short, stout legs, long, filamentous, segmented antennae, thorax humped over a small head, wings typically mottled/pattened
80
Flies of Bovine & Ovine 1-5 mm
Simulian spp. (black fly) feeding fly - humped back, palps longer than proboscis, short multi-segmented antennae, wings typically clear
81
Flies of Bovine & Ovine 3.5-5 mm
Haematobia irritans (horn fly) Feeding fly - arista present, piercing mouthparts, two longitudinal dark stripes on thorax, long club-shaped palps
82
Flies of Bovine & Ovine 8 mm
Musca autumnalis (face fly) Feeding fly - arista present, non-piercing, sponge-like mouthparts (labella)
83
Flies of Bovine & Ovine 7-8 mm
Stomoxys calcitrans (stable fly) Feeding fly - arista present, piercing mouthparts, 4 longitudinal dark stripes on thorax, prominent forward projecting proboscis
84
Flies of Bovine 15 mm
Hypoderma spp. (warbles of cattle) obligate myiasis fly - no mouthparts, body covered in dense hairs, resemble bumblebee
85
Flies of Ovine 10-12 mm
Oestrus ovis (sheep nasal bot) Obligate myiasis fly - black spots on abdomen, broad head, mouthparts reduced to small knobs
86
Flies of Bovine & Ovine 8-10 mm
Calliphoridae (blow fly) Opportunistic myiasis fly - metallic colouration (blue, green, copper, or black)
87
Flies of Bovine & Ovine 10-13 mm
Sarcophagidae (Flesh fly) Opportunistic myiasis fly - thorax grey w/ dark, longitudinal stripes; abdomen checkered grey & black
88
What is the importance of the Calliphoridae in Bo & Ov?
maggots (opportunistic myiasis)
89
What is the importance of the Hypoderma spp. in Bo & Ov?
- bots in spinal canal or esophagus (depending on spp.) - obligate myiasis
90
What is the importance of the Simulium spp. in Bo & Ov?
IH for Onchocerca spp.
91
What is the importance of Musca autumnalis in Bo & Ov?
IH for Thelazia & mechanical vector for bacterium Moraxella bovis (pink eye)
92
What is the importance of the Haematobia irritans in Bo & Ov?
- IH for Stephanofilaria & Setaria - major pest of cattle (back & sides)
93
What is the importance of Stomoxys calcitrans?
IH for horse gastric nematodes: Habronema & Draschia
94
What is the importance of Culicoides spp. in Bo & Ov?
biological vectors of orbiviruses (WTD, Bluetongue virus)
95
Porcine stomach < 8 mm
Hyostrongylus rubidus - Males: prominent bursa & equal sized spicules
96
Porcine stomach
Hyostrongylus rubidus trichostrongyle
97
Porcine Small Intestine many cm
Ascaris suum - 3 prominent lips
98
Porcine Small Intestine < 6 mm
Strongyloides ransomi (now Strongyloides Suis) - only females parasitic, filariform pharynx
99
Porcine Small Intestine 1-4 mm
Trichinella spiralis - tiny nematodes, almost never seen, females 2-4 mm, males < 2mm
100
Porcine small intestine - ~50-70 um, thick, rough shell
Ascaris suum
101
Porcine Small Intestine - ~40-55 um, larvated eggs w/ thin shell
Strongyloides ransomi (now S. suis)
102
Porcine Small Intestine - larvae
Trichinella spiralis
103
Porcine Large Intestine 50-80 mm
Trichuris suis - typical whip shape
104
Porcine Large Intestine 8-21 mm
Oesophagostomum - Males: prominent bursa & long spicules - anterior cuticular collar
105
Porcine Large Intestine - yellow-brown, lemon shaped eggs w/ bipolar plugs
Trichuris suis
106
Porcine Large Intestine
Oesophagostomum - trichostrongyle
107
Porcine Respiratory several cm
Metastrongylus spp. - thin white nematodes in small airways - Male: small bursa but v long spicules
108
Porcine Respiratory - ~51-63 um, larvated eggs w/ thick shell
Metastrongylus spp.
109
Porcine muscle - coiled larvae (100 um long) w/in nurse cell in muscle
Trichinella spiralis
110
Porcine Muscle & Tissues - cysticerci
Taenia solium
111
Porcine lice - found on surface in haircoat
Haematopinus suis Sucking lice - short-nosed, all legs same length
112
Porcine Mites - found burrowing in the epidermis
Sarcoptes scabiei var suis - short legs, long unjointed pedicels, posterior terminal anus
113
Porcine Fly - rat tailed maggot
Erystalis tenex (hover fly)
114
Porcine protozoa
Cystoisospora suis Stage: Oocyst - ~20 um, ellipsoidal, thin smooth shell, sporulated: 2 sporocysts w/ 4 sporozoites each
115
Porcine protozoa
Eimeria spp. Stage: Oocysts - ~ 15-30 um, sporulated: 4 sporocysts w/ 2 sporozoites each
116
Porcine protozoa
Cryptosporidium spp. Stage: oocyst - round, oval, v small (4 um), 3 sporozoites
117
Porcine protozoa
Toxoplasma gondii Stage: Tachyzoites (tissue & fluids) - crescent shape, central nucleus
118
Porcine Protozoa
Toxoplasma gondii Stage: Bradyzoites (tissue cysts) - round, thin wall, nucleus posterior
119
Porcine Protozoa
Toxoplasma gondii Stage: oocysts (feces) - 10 um, sporulated: 2 sporocysts w/ 4 sporozoites
120
Porcine Protozoa
Giardia spp. Stage: Trophozoites - pear shape, 2 nuclei, 4 flagellae
121
Porcine Protozoa
Giardia spp. Stage: cysts - ~12 um oval, central axis, & 4 nuclei
122
Porcine Protozoa
Balantidium coli (ciliate) Stage: Trophozoites - oval shape, v large size (~ 60 um), cilia, bean-shaped macronuclei (seen if stained)
123
Porcine Protozoa
Balantidium coli (ciliate) Stage: Cyst - more round shape, v large (~ 60 um), no cilia, presence of cyst wall
124
Porcine Floatation
Trichostrongyles, Trichuris, Ascaris, Metastrongylus, [Strongyloides ransomi, Cystoisospora suis] [seen at 10x but need 40x to confirm]
125
Poultry Small Intestine many cm
Ascaridia galli - prominent mouth w/ trilobed lips - Male: tail pointed & curved
126
Poultry Small Intestine & Crop 20-80 mm
Capillaria spp. (different sp in crop & small intestine) - Male: single spicule & primative bursa - Females: w/ characteristic eggs
127
Poultry Small Intestine\- thick, smooth shell, slightly convex side-walls, central morula, > 75 um
Ascaridia galli
128
Poultry small intestine & crop - lemon-shaped eggs w/ transparent bipolar plugs & thick shell
Capillaria spp.
129
Poultry Large Intestine (cecum) < 1.5 cm
Heterakis gallinarum - white w/ elongated tail - Male: have tail flaps (alae) & copulatory bursa w/ 2 unequal spicules
130
Poultry Large Intestine (cecum) - thick, smooth shell, central morula, smaller than Ascaridia < 75 um
Heterakis gallinarum
131
Poultry Respiratory 6-20 mm
Syngamus trachea - red worm, permanently copulating forming Y shape, large buccal capsule
132
Poultry Respiratory - bipolar plugs similar to Capillaria but w/ morula & thin walls
Syngamus trachea
133
Poultry Small Intestine < 4 mm
Davainea proglottina - small w/ 4-7 segments, hooks on rostellum, suckers w/ spines
134
Poultry Small Intestine - hexacanth larva w/ hooks
Davainea proglottina
135
Poultry Oviduct 7-9 mm
Prosthogonimus macrorchis - flat, oval pear shape, suckers, pinkish
136
Poultry Oviduct - small & operculum
Prosthogonimus macrorchis
137
Poultry Lice
Goniodes meleagris Chewing lice - brown colour, 3 mm, convex head
138
Poultry Mites
Cnemidocoptes mutans Burrowing mite - short legs, round body
139
Poultry Mite
Damanyssus gallinae (poultry red mite) Surface mite - anus posterior in anal plate. long legs, oval body
140
Poultry Mite
Ornithonyssus sylvarium (Northern Fowl Mite) Surface Mite - anus anterior in anal plate. long legs, oval body
141
Poultry Flea
Ceratophyllus gallinae - pronotal combs but not genal combs
142
Poultry Protozoa - Intestine (kidneys in Geese)
Eimeria spp. Type: Coccidian Stage: Oocyst - ~20-30 um, sporulated: 4 sporocysts w/ 2 sporozoites each
143
Poultry Protozoan - Intestine (some in respiratory tract)
Cryptosporidium spp. Type: Coccidian Stage: Oocysts - round, oval, very small (4 um). 4 sporozoites
144
Poultry Protozoa - mouth & throat
Trichomonas gallinae Type: Mucoflagellate Stage: Trophozoite - ~5-20 um, pear shaped, 4 free flagellates & 1 anterior flagella, undulating membrane & axostyle posterior end
145
Poultry Protozoa - Caecum then spreads to liver
Histomonas meleagridis Type: Mucoflagellate Stage: Trophozoite - ~5-20 um, round shape
146
Poultry Protozoan - Caecum then spreads to liver
Histomonas meleagridis Type: Mucoflagellate Stage: Amoeboid - Tiny, single-celled
147
Poultry Floatation
Trichostrongylus tenuis, Capillaria spp, Raillietina spp., Choanotaenia spp., Echinuria spp., Tarameres spp.
148
Poultry Floatation part 2
Echinostoma spp., Amidostomum spp., Syngamus trachea, Ascaridia galli, Heterakis gallinarum
149
Equine Stomach 5-8 mm
Trichostrongylus axei - Male: spicules unequal in length - Female: prominent ovejectors
150
Equine Stomach < 35 mm
Habronema spp. - characteristic pharynx w/ anterior muscular & posterior glandular zone, no anterior cuticular groove
151
Equine Stomach < 15 mm
Drascheia spp - as above but smaller w/ anterior cuticular groove
152
Equine stomach - thin walled, oval, morulated
Trichostrongylus axei Strongyle
153
Equine Stomach - small & larvated
Habronema spp. & Drascheia spp.
154
Equine Small Intestine many cm
Parascaris spp. - large, white, prominent lips, no copulatory bursa
155
Equine Small Intestine < 5 mm
Strongyloides westeri - only females parasitic, filariform pharynx occupying 1/3 of body
156
Equine Small Intestine - thick, rough shell
Parascaris spp.
157
Equine Small Intestine - small, larvated, thin shell
Strongyloides westeri
158
Equine Small Intestine < 8 cm
Anoplocephala perfoliata - overall body triangular, scolex w/ 4 suckers & no hooks, lappets at junction of scolex & body
159
Equine Small Intestine several cm
Anoplocephala magna - overall body ribbon-shaped, no lappets
160
Equine Small Intestine < 3 cm
Paranoplocephala mammillana - small ribbon shaped, slit-like suckers, no lappets
161
Equine Small Intestine - 65-80 microns, hexacanth larva in pyriform apparatus
Anoplocephala perfoliata & Anoplocephala magna
162
Equine Small Intestine - 65-80 microns, hexacanth larva in pyriform apparatus, like A. perfoliata but more oval in form
Prananoplocephala mammillana
163
Equine Large Intestine < 20 mm
Strongylus vulgaris - large buccal capsule w/ pr of rounded teeth at base
164
Equine Large Intestine < 50 mm
Strongylus equinus - large buccal capsule w/ pr of pointed teeth & a large bifid tooth at the base
165
Equine Large Intestine 50 mm
Strongylus edentatus - large buccal capsule w/o teeth
166
Equine Large Intestine 30 mm
Triodontophorus (large non-migratory strongyle) - medium sized buccal capsule w/ 3 pointed teeth at base
167
Equine Large Intestine < 20 mm
Cyathistomins (small strongyles) - small buccal capsule, no teeth
168
Equine Large Intestine < 10 cm
Oxyuris equi - Female: white w/ long-pointed tail - Male: rare - bulb pharynx
169
Equine Large Intestine
Strongylus vulgaris, Strongylus equinus, Strongylus edentatus, Triodontophorus, Cyathostomins - strongyle
170
Equine Large Intestine - oval, flattened on 1 side, operculate (pinworm)
Oxyuris equi
171
Equine Respiratory several cm
Dictyocaulus arnfieldi - thin wht nematodes in large airways
172
Equine Respiratory - larvae, granular in appearance w/ stylet on tail
Dictyocaulus arnfieldi
173
Equine Nuchal Ligament & Skin several cm
Onchocerca cervicalis - adult nematodes identified based on location
174
Equine Nuchal Ligament & Skin - microfilariae in dermis
Onchocerca cervicalis
175
Equine Peritoneal Cavity several cm
Setaria spp. - thin white nematodes in peritoneal cavity
176
Equine Peritoneal Cavity - ensheathed microfilariae in blood
Setaria spp.
177
Equine Lice - found on the surface in haircoat
Haematopinus asini Sucking Lice - short-nosed, all legs same length, prominent segmented antennae on each side of head
178
Equine Lice - found on surface in haircoat
Werneckiella (Damalinia) Equi - convex, blunt head w/ prominent, segmented antennae on each side
179
Equine mites - found on surface in haircoat - long, jointed pedicel
Psoroptes - long legs
180
Equine Mites - found on surface in haircoat - short, unjointed pedicels
Chorioptes - long legs
181
Equine Mites - found burrowing in epidermis
Sarcoptes - short legs, long unjointed pedicels, posterior terminal anus
182
Equine Mites - found burrowing in hair follicles
Demodex - short legs, cigar shape
183
Equine Ticks - found on surface & in ears
Otobius megnini (Spinose ear tick) Soft tick - ventral capitulum, no scutum, only larvae & nymphs parasitic, spiny, fiddle shaped
184
Equine Ticks - found on surface of haircoat
Dermacentor spp. Dermacentor albipictus (moose or winter tick), Dermacentor andersoni (Rocky Mountain Wood Tick), Dermacentor variablis (American Dog Tick) - onate, festooned, short blunt capitulum, splatter over scutum
185
Equine Ticks - found on surface in haircoat
Amblyomma americanum (Lone Star Tick) - ornate, festooned, long parallel capitulum, Female has single yellow dog on scutum, male has yellow streaks on festoons - foreign to Canada
186
Equine Ticks - found on surface in haircoat
Ixodes spp (Black legged or deer ticks) - inornate, no festoons, long parallel capitulum, anal groove anterior to anus
187
Equine Ticks - on surface in haircoat
Haemaphysalis longicornis (Asian long-horned tick) - inornate, festoons, short angled capitulum - foreign to Canada
188
Flies of Horses 11-15 mm
Gasterophilus spp (equine bot flies) Obligate myiasis flies - no mouthparts, body densely covered in yellow hairs w/ dark brown bands on abdomen, large ovipositor in female (elongated abdomen)
189
Flies of horses 8-10 mm
Calliphoridae (Blow fly) Opportunistic myasis flies - metallic colouration (blue, green, copper, or black)
190
Flies of Horses 10-13 mm
Sarcophagidae (Flesh flies) Opportunistic myiasis fly - thorax grey w/ dark, longitudinal stripes; abdomen checkered grey & black
191
Flies of Horses 1-5 mm
Simulian spp. (black fly) Blood feeding - hump-backed, palps longer than probiscis, short multi-segmented antennae, wings typically clear/hyaline
192
Flies of horses 1-4 mm
Culicoides (midges) Blood feeding - short, stout legs, long, filamentous, segmented antennae, thorax humped over a small head, wings typically mottled/patterned
193
Flies of horses 7-8 m
Stomoxys calcitrans (stable fly) blood feeding - arista present, piercing mouthparts, 4 longitudinal dark stripes on thorax, prominent forward projecting proboscis
194
Flies of horses 3-5 cm
Tabanids (Horse fly) blood feeding - arista absent, downward pointing piercing mouthparts, prominent eyes, often w/ band across eye
195
Flies of horses ~12 mm
Mosquitoes (Culex, Aedes, Anopheles) - thin, long-legged, 2-wing, insect, antenna 4x longer than its head
196
What is the clinical importance of Calliphoridae to horses?
maggots (opportunistic myiasis)
197
What is the clinical importance of Gasterophilus spp. to horses?
bots (location depending on sp.). obligate myiasis
198
What is the clinical importance of Tabanids like horse fly to horses?
mechanical transmission of disease (Equine Infectious Anemia, Anthrax)
199
What is the clinical importance of Mosquitoes to horses?
vectors of: - WNV, WEEV, EEV (culex) - setaria equina (nematode) from Aedes - malaria (Anopheles)
200
What is the clinical importance of Stomoxys calcitrans to horses?
IH for horse gastric nematodes: Habronema & D. raschia
201
What is the clinical importance of Culicoides spp. to horses?
biological vectors of virus (vesicular stomatitis, African horse sickness) & Onchocerca
202
Equine Protozoa
Eimeria leuckarti Stage: Oocysts (feces) - 80x40 um, large, brown, pear shaped
203
Equine Protozoa
Cryptosporidium parvum Stage: Oocysts (feces) - round, oval, v. small (4 um), 4 sporozoites
204
Equine Protozoa
Neospora hughesi Stage: Tachyzoites (tissue & fluid) - various shapes (round, crescent)
205
Equine Protozoa
Neospora hughesi Stage: Bradyzoites (tissue cyst) - round, thick-walled
206
Equine Protozoa
Sarcocystis fayeri (tissue) or Sarcocystis neurona (aberrant) Stage: Sarcocysts (tissue) - often oval, contain bradyzoites
207
Equine Protozoa
Sarcocystis fayeri (tissue) or Sarcocystis neurona (aberrant) Stage: Meronts (schizonts) or free merozoites (tissue) - sarcocysts are v rare, usually crescent shaped merozoites free in tissues
208
Equine Protozoa
Babesia caballi Stage: Trophozoite - ring inside erythrocyte
209
Equine Protozoa
Babesia caballi OR Theileria equi Stage: Merozoite - Pyriform or cruciform inside erythrocyte
210
Equine Protozoa
Theileria equi Stage: Meront/schizont - inside white cells
211
Equine flotation
Parascaris spp., Oxyuris equi, [Strongylus spp, Cyathostomins] [strongyle type egg, impossible to differentiate]
212
Equine Floatation II
Eimeria leuckarti, Anoplocephalid spp., Paranoplocephala mamillana, Strongyloides westeri

Parasitology II (9 decks)

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