Lab practical 1 Flashcards
Collembola (non-insect hexapod)
Springtails
biplura (non-insect hexapod)
two-pronged bristletails
Protura (non-insect hexapod)
conetails
Order Microcoryphia (formerly archaeognatha)
Bristletails
1 north American family: Machilidae, 24 spp.
can take 2 years to mature
humback appearance
some can jump
have two cerci and median caudal filament
large compound eyes that often touch
order zygentoma
silverfish and firebrats
one major family in N. America: lepismatidae; 14 spp.
two long cerci flanking median caudal filament
both are dorsoventrally flattened
compound eyes reduced or gone
Order Ephemeroptera
spend most of their life as aquatic juveniles
there are many families but are very difficult to tell apart.
nymph has gills alongside their abdomen and three long filaments emerging from the rear of the abdomen
Order Odonata
Dragonflies and damselflies
a long abdomen and large compound eyes
two pairs of wings
two suborders:
- zygoptera: damselflies
- anisoptera: dragonflies
Suborder zygoptera
damselflies
hindwing and forewing are similar in size and shape
compound eyes large, nearly spherical
wings, held over the abdomen when at rest
3 main families:
- caloptyrigidae
- coenagrionidae
- lestidae
family caloptyrigidae
ebony jewelwing damselflies or broadwing damselflies
wings narrow gradually at base
wings darkened
10 or more antenidal crossveins at costal regions
Family coenagrionidae
narrow wing damselflies
wing clear, except for perostigma
2 antinodal crossveins on costal margin
family lestidae
spread-wing damselfly
wing often held outward and away from body when at rest
2 antenodal crossvein at costal margin
Suborder anisophora
dragonflies
hindwings wider at the base than the forewings
compound eyes hemispherical
wings held horizontally at rest, perpendicular to the body
family aeschidae
“darter” dragonflies
compound eyes that rest on top
triangle in the wing venation
family libellulidae
common skimmer dragonflies
compound eyes that meet at the top of the head
the anal loop of the hindwing is boot-shaped
family gomphidae
clubtail dragonflies
eyes do not meet
final segment of abdomen often enlarged
Order dermaptera
Earwigs
often scavengers or herbivores
some viviparous
female earwigs demonstrate subsocial behavior
cerci enlarge to form forceps, some can be IDed or sexed by their forceps
some are apterous, others have shortened tegmina
major family: forficulidae
family forficulidae
largest earwing family
>460 spp. worldwide and 66 genera
order plectoptera
stoneflies
another aquatic juvenile order. some species require years to develop into adults
adults live for a few weeks
filiform antennae
adults retain cerci
difficult to key out species
ORder Orthoptera
grasshoppers, katydids, crickets
forwings adapted as tegmina
saltatorial legs
tarsal segments unique to species
2 suborders:
- caelifera: chisel bearers
- ensifera: sword bearers
family tettigoniidae
long-horned grasshopper
antennae of body length or longer
tarsi 4 4 4
ovipositor pronounced, scimitar-shaped
wings projected
often leaf mimics
family raphidiophoridae
cave and camel crickets
antennae body length or more
wingless
dorsum prominently arched
tarsi 4 4 4
family acrididae
short-horned grasshopper
short antennae
pronotum does not extend over abdomen
tarsi sequence 3 3 3
ovipositor short
family tetrigidae
pygmy grasshoppers
antennae short
quite small
pronotum extends over the entire abdomen, almost to the wing tips
Family Gryllidae
crickets, field crickets
antennae of body length or longer
ocelli absent
small spinules on the hind tibia and long spines
order plasmotodea
stick insects and walking sticks
only one major family in N America: Diapheromeridae
highly cryptic
antennae long
prothorax shorter than mesothorax and metathorax
family Diapheromeridae
Diapheromeridae is a family of stick insects (order Phasmatodea). They belong to the superfamily Anareolatae of suborder Verophasmatodea.[1]
The family contains some huge species
mantodea
mantids
1 family: mantidae
raptorial forelegs
all are predatory
lay eggs in ootheca
triangular head
3 of the 5 common species in the US are not native
family mantidae
Mantidae is one of the largest families in the order of praying mantises, however, most genera are tropical or subtropical.
Blattodea
cockroaches and termites
3 major families:
- blattidae: cockroaches (oriental and American)
- ectobiidae: wood cockroaches and german cockroaches
- rhinotermatidae: termites
termites are thought to have evolved from social good cockroaches
tarsi 5 segments
family blattidae
Blattidae is a cockroach family in the order Blattodea containing several of the most common household cockroaches
family ectobiidae
Ectobiidae is a family of the order Blattodea. This family contains many of the smaller common household pest cockroaches, among others. They are sometimes called wood cockroaches
family rhinotermidae
Rhinotermitidae is a family of wood-soil interface feeding termites commonly known as the Subterranean termites. Many members of this family are known pests that can cause extensive damage to buildings or other wooden structures.
Order Thysanoptera
thrips
tiny plant pests
most are fungivores
fringed wings, asymmetrical mouthparts
common plant virus vector
Order psocodea
lice, book lice, bark lice
Small detritivores
every species of mammal has louse species specialized for them
Order Hemiptera
a large order
forewing often adapted for defense
often hemelytra
piercing, sucking mouthparts
suborders:
- sternorrhyncha
- auchenorrhyncha
- heteroptera
Suborder sternorrhyncha
aphids, whiteflies, and scale insects
very small
scale insects sessile as adults
all are plant feeders
life history
- eusocial
- flightless forms
- sexual dimorphism
- parthenogenesis
suborder auchenorrhyncha (or homoptera)
includes spittlebugs and cicadas
frequently can produce audible sound via stridulation
forewings tend to be uniform in composition
family aphididae
aphids
soft bodies
2 cornicles on posterior of abdomen
some are wingless, some not
parthenogenesis
superfamily coccoidea
scale insects
females are wingless, often with waxy fur protection.
males with 1 pair of wings, no beak, tarsi 1 1 1 with a single claw
family acanaloniidae
planthoppers
small insects with wings nearly vertical.
laterally flattened
family cercopidae
froghopper and spittlebugs
antennae positioned
1 or 2 spines on tibia
family cicadellidae
leaf hoppers
hind tibia have 1 or more rows of spines
family cicadidae
cicadas
membranous forewings
cluster of 3 ocelli between compound eyes
family flatidae
flatid planthoppers
laterally flattened
family fulgoridae
lanternflies
poorly represented in N. America
often elongated snout
hindwing anal region often crossveins
family membranacidae
tree hoppers
pronotum highly modified
often thorn mimic
suborder heteroptera
true bugs
previously an order unto itself
many families
family alydidae
broad-headed bug
usually dark
forewing highly veined
four segmented
family belostomatidae
giant water bug
raptorial forelegs
short tegmina
family cimicidea
bedbugs
flat, oval-shaped
vestigial wings if present
antennae 4 segments
family coreidae
leaf footed bugs
forewings membrane highly veined, four segmented antennae
head narrower than pronotum
usually dark-colored and >10mm
occasionally hind tibia dilated and leaf shaped
family corixidae
water boatman
dorsal surface flattened
family gerridae
water strider
long legs
family lygaeidae
seed bugs
small
membrane of forewings
family miridae
plant bugs or leaf bugs
ocelli absent
tarsi 3 3 3
family nepidae
water scorpion
raptorial legs
2 long breathing tubes
family notonectidae
backswimmers
dorsum strongly convex with no dark crossline
swim upside down
family pentatomidae
stink bugs
broadly oval
scutellum large and triangular
antennae 5 segments
family reduviidae
assassin bug
ocelli absent
tree segment beak
family rhopalidae
scentless plant bugs
ocelli present and very large
family tingidae
lace bug
small
body and wing reticulated
pronotum has triangular extension covering the scutellum
Diptera
“two wings”
currently the second most speciose order
lots of ongoing research as to the phylogeny
taxonomy currently under review
suborder nematocera
mosquitos, crane flies, gnats, midges
thread horn
referring to antennae (>6 segments)
larvae often aquatic
suborder brachycera
short horn
- referring to antennae
a suborder of Diptera including the more highly specialized flies which have palpi with one or two joints and usually short antennae with one or never more than six joints
Cyclorrhapha
circular seam flies
- referrign to the puparium
sometimes referred to muscamorpha
family chironomidae
non-biting midges, bloodworms
delicate, often with head overhung by humped thorax
family culicidae
mosquitos
very small
slender body; stilt legs
antennae 13 segments; ornate plumage in males
wings have scales along veins
family simuliidae
black flies, buffalo gnats
small flies
sub-costal appearance
robust antennae
antennae 11 segments, simple, rarely longer than head