Insect Classification Exam 2 Flashcards
Hemipteroid Orders
Psocoptera, Pthiraptera, Hemiptera, and Thysanoptera
Hemipteroid suborders
Psocodea (Psocoptera and Phthiraptera) and Condylognatha (Hemiptera and Thysanoptera)
Hemiptera charateristics
Piercing-sucking beak, 4 piercing stylets, no palps
Hemiptera suborders
Sternorrhynca, Auchenorrhynca, and Heteroptera
Sternorrhynca
Hemipteran suborder: psyllids, scales, whiteflies, and aphids
Sternorrhynca characteristics
Psyllids, scales, whiteflies, and aphids; beak arises from posterior margin of head/between front coxae, antennae long and filiform, tarsi 1-2 segmented
Auchenorrhynca
Hemipteran suborder: cicadas, plant/leafhoppers
Auchenorrhynca characteristics
Cicadas, plant/leafhoppers; beak arises from posterior margin of head, antennae short and bristle-like, tarsi 3 segmented
Heteroptera
Hemipteran suborder: true bugs
Heteroptera characteristics
True bugs; beak arises from anterior portion of head, basal portion of front wings thick while apical portion membranous
Sternorrhyncha families
Psyllidae (psyllids), Aleyrodidae (whiteflies), Aphididae (aphids), Superfamily Coccoidea (scales)
Psyllidae characteristics
Psyllids; 2-5mm, beak short and 3 segmented, resemble tiny cicadas
Aleyrodidae characteristics
Whiteflies; 2-3mm, resemble tiny moths, wings covered with waxy powder or dust
Aphididae characteristics
Aphids; small, softbodied, cornicles present at posterior end of abdomen, found in large groups
Coccoidea characteristics
Scale; females are usually wingless and legless, males have a single pair of wings and look similar to gnats
Cicadidae characteristics
large, make species specific sounds from tymbals
Membracidae characteristics
Tree-hoppers; 10-12mm, pronotum covers head and extends to abdomen
Cercopidae characteristics
Froghoppers and spittlebugs; under 13mm, hind tibia with 1-2 stout spines laterally and crown of spines at tip
Cicadellidae characteristics
Leafhoppers; under 13mm, hind tibia with 1+ rows of spines but no crown of spines at tip
Delphacidae characteristics
Planthopper; small and may have reduced wings, large flattened spur at base of hind tibia
Dictyopharidae characteristics
Planthoppers; head prolonged into a slender process (usually!)
Fulgoridae characteristics
Lanternflies; 13mm with wingspan 25mm (largest); reticulated anal area of hind wings with many cross veins
Flatidae characteristics
Planthoppers; wedge shaped appearance at rest, numerous cross veins at costal area of front wings
Issidae characteristics
Planthoppers; lacks cross veins in costal areas of front wings
Enicocephalidae characteristics
Unique-headed bug/gnat bug; 2-5mm, front wings entirely membranous, predaceous on small insects
Nepidae characteristics
Waterscorpions; raptorial forelegs, well developed wings, long caudal breathing tubes formed by cerci
Belostomatidae characteristics
Giant water bugs/toe biters; large, males might carry eggs on back
Corixidae characteristics
Water boatmen; 1 scoop-shaped tarsal segment, dorsal surface flat with cross stripes
Notonectidae characteristics
Backswimmers; keel shaped, predaceous
Gelastocoridae characteristics
Toad bugs; toad-like, small eyes
Naucoridae characteristics
Creeping water bugs; 9-13mm, front femora greatly thickened with skinnier tibia, bites hurt badly
Mesoveliidae characteristics
Water treaders; 5mm or less, antennae 4 semented, beak 3 segmented, ocelli present, tarsi 3 segmented
Hydrometridae characteristics
Water measurers/marsh treaders; 8mm, head long and slender, check mouthparts to distinguish from walking sticks!
Veliidae characteristics
Broad-shouldered water striders; usually wingless, middle legs equidistant from others, tarsal claw arises before tip
Gerridae characteristics
Water striders; middle legs are closest to hind legs, tarsal claw arises before tip
Tingidae characteristics
Lace bugs; pronotum has triangular extension over scutellum, antennae and beak 4 segmented, tarsi 1-2 segmented, no ocelli
Miridae characteristics
Plant bugs; 4-10mm, oval
Anthocoridae characteristics
Minute pirate bugs; 3-5mm, black and white markings, front wing with few/no veins, ocelli present
Cimicidae
Bed bugs
Reduviidae characteristics
Assassin and Ambush bugs; beak short and usually curved back, 3 segmented beak, antennae 4 segmented, front femora thickened or raptorial front legs
Aradidae charateristics
Flat or fungus bugs; 3-11mm, very flat, ocelli absent
Lygaeidae characteristics
Seed bugs; 2-18mm, antennae and beak 4 segmented, tarsi 3 segmented
Coreidae characteristics
Leaf-footed bugs; 13-40mmm, hind tibia dilated and leaf like, head narrower and shorter than pronotum
Scutelleridae characteristics
Shield-backed bugs; 8-10mm, 5 segmented antennae, look beetle like because scutellum covers most of abdomen
Pentatomidae characteristics
Stink bugs; 5 segmented antennae, scutellum large and triangular
Pentatomidae: stink bugs
Scutelleridae: shield bugs
Coreidae: leaf-footed bugs
Lygaeidae: seed bugs
Aradidae: flat or fungus bugs
Reduviidae: assassin or ambush bugs
Cimicidae: bed bugs
Anthocoridae: minute pirate bugs
Miridae: plant bugs
Tingidae: lace bugs
Gerridae: water striders
Concept of Availability
if the name is available and it is validly published, then it is legitimate
Nomen nudum
a name that does not satisfy conditions of availability
Valid name
The oldest available name (first published name)
Synonyms
Senior synonym: earliest published name
Junior synonym: all subsequent published names (not valid)
Synonym vs. Homonym
Synonym is the same name for the same taxa, homonym is the same name for different taxa
Type
a specimen or taxon which carries a given name as the “example”
Superfamily ending
-oidea
Family ending
-idae
Subfamily ending
-inae
Tribe ending
-ini
When to use parentheses after a species name
if the species is moved to a different genus
Subspecies
Phenotypically different groups which are different on a taxonomic level
Races
local populations which aren’t different enough to be designated subspecies
Clines
used to describe character gradients across a population (used to describe a single character)
Variety
ambiguous term used to describe differences across a population
Anagenesis
No branching into a new species (turns into a new species)
Cladogenesis/speciation
Branching into two new species
Biological species concept
Group of actually or potentially interbreeding populations which are reproductively isolated from other such groups
Faults of biological species concept
Doesn’t account for asexual species, indiscriminate use of “reproductive isolation” definition, depends on comparing to other “species” to define parameters
Phylogenetic species concept
Smallest detected samples of self perpetuating organisms that have unique sets of characters; relies on morphology
Faults of phylogenetic species concept
Could overestimate species diversity
Recognition species concept
A species is the most inclusive population of individual, biparental organisms which share a common fertilization system; emphasizes mating adaptations
Faults of recognition species concept
impossible to apply without knowledge of behavior, excludes uniparental species
Evolutionary species concept
a lineage evolving separately from others with its own unitary evolutionary role and tendencies
Fault of evolutionary species concept
pretty much impossible to apply
Theoretical species concepts
Biological
Operational species concepts
Phylogenetic, Recognition (somewhat!)
Veliidae: broad-shouldered water striders
Hydrometridae: water measurers, marsh treaders
Mesoviliidae: water treaders
Naucoridae: creeping water bugs
Gelastocoridae: toad bugs
Notonectidae: backswimmers
Corixidae: water boatmen
Belastomatidae: giant water bugs
Nepidae: Waterscorpions
Enicocephalidae: gnat bug
Issidae: plant hoppers
Flatidae: plant hoppers
Fulgoridae: lanternflies
Dictyopharidae: plant hoppers
Delphacidae: plant hoppers
Cicadellidae: leaf hoppers
Cercopidae: frog hoppers and spittlebugs
Membracidae: tree hoppers
Cicadidae: cicadas
Superfamily Coccoidea: scale insects
Aphididae: aphids and plantlice
Aleyrodidae: whieflies
Psyllidae: psyllids
Important people in the Pre-Linnaean Period
Democritus, Aristotle, Agricola
Major advances of the Pre-Linnaean Period
Systematic grouping of organisms and the light microscope
Democritus
first systematist, distinguished between red-blooded animals and others
Aristotle
first to create a systematic grouping based on characteristics
Agricola
focused on the media bugs are found in: fly, crawl, swim
Important people of the Linnaean Period
Little - Linnaeus
Dogs - DeGeer
Scoot - Scopoli
Frantically - Fabricius
Like - Lamarck
Little - Latreille
Lizards - LeConte
Hafta - Haeckel
Scoot - Scudder
Major advancements of the Linnaean Period
binomial nomenclature and classification using a hierarchical system
Carolus Linnaeus
founder of systematics; first to formulate definite classification groups; made binomial nomenclature; published Systema Naturae
Johann Christian Fabricius
defined over 10,000 species based solely on mouthparts
John L. LeConte
“Greatest North American taxonomist in entomology” - described over 4700 species
Ernst Heinrich Haeckel
made first phyla tree
Samuel Scudder
most well known American for studying fossil insects
Important people of the Modern Period
Dudes - Darwin
Hate - Hennig
Big - Brauer
City - Comstock
Wind - Wheeler et al