ENTM 010 MIDTERM TWO
STUDY GUIDE 2026 EXPERT
VERIFIED | ACE THE TEST
Order Collembola: Springtails - 🧠ANSWER ✔✔Ametabolous, Primitive
compound eyes, Furcula, Retinaculum, Collophore
Live in moist environments and dense populations
Posess unique mating behavior, have no internal fertilization, love gardens
,Order Thysanura: Silverfish - 🧠ANSWER ✔✔Ametabolous, have 2 cerci
and 1 caudal filament, body covered in 'silvery' scales, possess small
compound eyes
Found in decaying vegetation, can be household pests, feed on starchy
substances, no internal fertilization
Order Ephemeroptera: Mayflies - 🧠ANSWER ✔✔Medium sized, large
triangular front wings, no wing flexion, Hemimetabolous, vestigial
mouthparts in adults, 2-3 caudal tails, adults are terrestrial, nymphs are
aquatic (Nymphs respire through abdominal gills)
Relatively long life cycles (up to three years), Adults are short lived (don't
feed, they only mate and then die), emergence swarms, pollution indicators
Order Odonata: Dragonflies and Damselflies - 🧠ANSWER ✔✔Large (2-12
cm), large veined mebranous wings, no wing flexion, Hemimetabolous,
chewing-mouthparts in adults and nymphs, adult cerci function as claspers
while mating, nymphal labium functions as a harpoon, adults are terrestrial,
nymphs are aquatic with rectal gill pads
Adults hunt with legs forming a basket, Nymphs use jet propulsion,
, Males defend territories and females, unique coupling, heart-shaped
mating wheels
Order Phasmida: Walking Sticks - 🧠ANSWER ✔✔Medium to large in size,
usually lack wings, make sound for mate attraction, look like sticks or
leaves, Hemimetabolous
All are phytophageous (plant eaters), many are parthogenetic, defenses
include stick and leaf mimicry, kicking, chemical defenses
Order Orthoptera: Grasshoppers, Katydids, Crickets - 🧠ANSWER
✔✔Chewing mouthparts, long antennae, large compound eyes, tegmina
present, wingpads in nymphs, Saltatorial rear legs common in this order,
well developed ovipostor, Hemimetabolous
99% Phytophagous, produce lots of sounds, Each orthopteran species has
a characteristic mating song, and males often form territories based on
their songs, Aposematic Coloring (warning signals)
Order Mantodea: Mantids - 🧠ANSWER ✔✔Large prothorax, large raptorial
front legs, triangular head, large compound eyes, tegmina, chewing
mouthparts, Hemimetabolous
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
STUDY GUIDE 2026 EXPERT
VERIFIED | ACE THE TEST
Order Collembola: Springtails - 🧠ANSWER ✔✔Ametabolous, Primitive
compound eyes, Furcula, Retinaculum, Collophore
Live in moist environments and dense populations
Posess unique mating behavior, have no internal fertilization, love gardens
,Order Thysanura: Silverfish - 🧠ANSWER ✔✔Ametabolous, have 2 cerci
and 1 caudal filament, body covered in 'silvery' scales, possess small
compound eyes
Found in decaying vegetation, can be household pests, feed on starchy
substances, no internal fertilization
Order Ephemeroptera: Mayflies - 🧠ANSWER ✔✔Medium sized, large
triangular front wings, no wing flexion, Hemimetabolous, vestigial
mouthparts in adults, 2-3 caudal tails, adults are terrestrial, nymphs are
aquatic (Nymphs respire through abdominal gills)
Relatively long life cycles (up to three years), Adults are short lived (don't
feed, they only mate and then die), emergence swarms, pollution indicators
Order Odonata: Dragonflies and Damselflies - 🧠ANSWER ✔✔Large (2-12
cm), large veined mebranous wings, no wing flexion, Hemimetabolous,
chewing-mouthparts in adults and nymphs, adult cerci function as claspers
while mating, nymphal labium functions as a harpoon, adults are terrestrial,
nymphs are aquatic with rectal gill pads
Adults hunt with legs forming a basket, Nymphs use jet propulsion,
, Males defend territories and females, unique coupling, heart-shaped
mating wheels
Order Phasmida: Walking Sticks - 🧠ANSWER ✔✔Medium to large in size,
usually lack wings, make sound for mate attraction, look like sticks or
leaves, Hemimetabolous
All are phytophageous (plant eaters), many are parthogenetic, defenses
include stick and leaf mimicry, kicking, chemical defenses
Order Orthoptera: Grasshoppers, Katydids, Crickets - 🧠ANSWER
✔✔Chewing mouthparts, long antennae, large compound eyes, tegmina
present, wingpads in nymphs, Saltatorial rear legs common in this order,
well developed ovipostor, Hemimetabolous
99% Phytophagous, produce lots of sounds, Each orthopteran species has
a characteristic mating song, and males often form territories based on
their songs, Aposematic Coloring (warning signals)
Order Mantodea: Mantids - 🧠ANSWER ✔✔Large prothorax, large raptorial
front legs, triangular head, large compound eyes, tegmina, chewing
mouthparts, Hemimetabolous
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
