Pictures for Q1 parasite

Musca domestica (House fly)

Mouse gray to dark gray

4 distinct longitudinal dark stripes on thorax

Reddish Eyes

Sponging Mouth Parts

Musca autumnalis

Stomoxys calcitrans (Stable Fly)

Distinctive, protruding, bayonet-like mouthparts-painful bite

Checkerboard pattern

Haematobia irritans (Horn Fly)

Dull gray color, no stripes or checker pattern

Half the size of house flies

lower palps nearly as long as proboscis

Chrysops Deer fly

red eyes large broad head

~10mm in length

Banded wings

Often yellowish brown

Tabanus Horse fly

Up to 25 mm in length

Clear wings

Sheep ked-melophagus ovinus

Dorso-ventrally flattened

6 legs & terminal claws

Leathery, brownish in appearance

No wings present

Mosquito diptera culicidae

wings with scales on veins

proboscis long

antennae plumose on male and short haired on female

Simulium spp black flies

Vary from gray to yellow-tan

Prominent hump

Female=lacerating mouthparts with serrations

Culicoides(no-see-ums)

Biting midges

Small (1-3 mm) slender gnats

Short blood-sucking proboscis

Humped thorax

May have spotted wings and fine hairs

Sandflies

Gnat like-up to 5mm long

Bodies and wings hairy

Cochliomyia hominivorax Primary Screwworm

mature larva is ~12mm long with distinct bands of spines around each body segment (looks like a wood screw)

Breathing tubes (trachae) are deeply pigmented for about 1/3 their length

Hypoderma

adults have no funcitoning mouthparts-bumblebee like appearance

Oestrus ovis

attach to mucous membrane with 2 large black oral hooks

Gasterophilus

eggs laid on forelegs hatch in response to licking or increase in temp

Cuterebra- rodent bots or warbles

flies up to 2mm

mature larvae coal black covered in cuticular spines

Ctenocephalides felis and C. canis Cat flea / Dog flea

Genal& pronotal combs

Xenopsylla cheopis Oriental rat flea

no combs

mesothoracic rod with long bristles and a flattened body.

Echidnophaga gallinacea Sticktight flea

Head sharply angular-no combs

Pulex irritans

Human flea

No comb, no mesothoracic rod

Tunga penetrans

Burrow into digital pad and nose

Triatomine bugs-kissing bug

Black or dark brown with contrasting patterns

Average length of 20 – 25 mm

Three segmented, switch blade proboscis

Anoplura-sucking lice

Head NARROWER than thorax mouthparts=sucking device

claws

Mallophaga- Chewing/ biting lice

Head BROADER than thorax

chewing mouth parts

Sucking lice

Host-Dog

Linognathus

Chewing lice

Host-dog

Vector-dog tapeworm,Diplyidium caninum

Trichodectes

Chewing Louse-Cat

Felicola

Chewing louse-horse

Bovicola

Sucking louse-horse

Haematopinus

Sucking louse-pig

Haematopinus suis

Sucking louse-cattle

Haematopinus- short nose cattle louse

Sucking louse-cattle

Solenopotes-little blue cattle louse

Sucking louse-cattle

Linognathus-long nose cattle louse

CHEWING louse-cattle

Bovicola-red louse

chewing louse-sheep

Bovicola-B.Ovis

Goat louse

three species of Linognathus

Goat Louse

three species of Bovicola

Poultry louse

At least 9 species of chewing

Menopon-shaft louse

Liperus-wing louse

Cuclutogaster-head louse

Human anoplura

Pthirus pubis

“Crab louse” of humans (les papillons d'amour)

Pubic area in adults

Human louse-anoplura

Pediculus humanus humanus

Human body louse, “cootie”

Prefers seams of clothing to hide & lay eggs

Chronic infestations: skin thickening, discoloration

Vector: Rickettsia prowazekii (Epidemic typhus) Bartonella quintana (Trench fever) Borrelia recurrentis (Louse-borne relapsing fever)

Sarcoptes Scabiei

Body-Circular shape Surface w/ small, triangular spines

Four pairs of short legs

Long, unjointed pedicels terminating from the legs

Notoedres Cati

“fingerprint in play-doh”

dorsal anus

prominent rounded scales on dorsum

Psoroptes-scab mites-psoroptic mange

Long, jointed/segmented pedicels w/ carnucle at end of legs

Body elongated

Chorioptes

legs with unjointed pedicels

Demodex-cigar shaped adults

Cheyletiella-walking dandruff mites

Large palpal claws used to cling to hairs

Lynxacarus Radovskyi

head plate

propodosomal plate

body striation

Otodectes cynotis

Pneumonyssoides caninum

Mites in nares and nasal sinuses

Dermanyssus Gallinae

White to grey but red=newly fed

Ornithonyssus sylviarum-northern fowl mite

Knemidokoptes-scaly leg mite

Trombicula-chiggers

Bright red or orange color

HArd tick-ixodidae

Body-dorsal scutum- round w, smooth surface many festoon

Legs- 3 pair(larva) 4 pair(nymph&adult) w/ claws

Head-basis capitulum & mouthparts anterior projecting

Sexual dimorphism present

Soft tick

Body-no dorsal scutum, irregular shape with textured surface, festoons absent

legs-3 pairs(larva) 4 pair(nymph and adult) w/ claws

Head-basis capitulum& mouth parts ventrally projecting

sexual dimorphism-absent

Amblyomma maculatum

Long palps

Rectangular capitulum

eye& festoon present

Amblyomma americanum

long palps and mouthparts

Female=white spot

Dermacentor variabilis

Reddish-brown

Scutum ornate w/ gray/silver marble marking

capitulum-rectangular

short mouthparts w/ second segments as long as wide

eyes and festoon present

Haemaphysalis longicornis

Light brown color

flare mouth part-short and angular 2nd-palpi laterally 3rd-spurs

inornate

Ixodes scapularis

Rectangular capituli

Palps longer than basis capiluli

Anal groove anterior inverted U shape

Rhipicephalus sanguineus

Hexagonal basis capitulum

Palps are short

Eyes present but difficult to ID

Scutum is inornate

Festoons - present

Rhipicephalus boophilus

Hexagonal basis capitulum

Palps are short and ridged dorsally and laterally

Eyes present but difficult to ID

Scutum is inornate

Festoons - absent

Argas-soft tick

Granular surface & Flattened body margin.

otobius-soft tick

spinose ear tick

Short spines on surface, Irregular violin shape

Ornithodoros-soft tick

Flattened body with a leathery, wrinkled surface with small noduled