ENTM 010 UCR Final Study 2026
Exam Questions and Verified
Answers | Already Graded A+
Order Strepsiptera (Twisted Wings): Twisted-wing Parasites - 🧠ANSWER
✔✔- This is a very small unusual order with hypermetamorphosis.
- The metathoracic wings are large, membranous, fan-likewith few veins.
- Males have elaborate antennae that are used to detect pheromones
produced by females.
,- Adult females lack eyes, antennae, and legs. The head and thorax of the
female are fused and protrude from the body of the host insect.
- The space between adult body and old larval cuticle is the access path to
the female genital pores and is called the brood canal.
- All twisted-wing parasites are holometabolous
Order Mecoptera (long wings): Scorpionflies - 🧠ANSWER ✔✔- Adults have
an elongated clypeus which gives the appearance of a beak.
- These insects have chewing mouthparts located at the end of the beak.
- In general, scorpionflies are weak fliers.
- Adult males will use pheromones to attract the females and induce mating
via a nuptial gift.
- Males will compete for the availability of dead insects. The males will use
these dead insects as nuptial gifts for the females. The bigger the gift (dead
bug) the more attractive the male is to the female. If males lack a gift, they
will construct piles of saliva to be offered to the potential female mates.
- Males without any gifts will attempt forced copulation, but this behavior is
usually unsuccessful in terms of actually producing offspring.
, Order Siphonaptera (tube wingless) Fleas - 🧠ANSWER ✔✔- Small, laterally
flattened insects
- All fleas are wingless, and have well developed jumping legs. They are
equipped with sucking mouthparts and are holometabolous.
- Ectoparasites and are blood feeders as adults.
- The most important disease transmitted by fleas is plague. Plague is
primarily a disease of rodents and is caused by the bacteria Yersinia pestis.
It is vectored (transmitted) by the common rat flea.
Order Diptera (two wings): The Flies - 🧠ANSWER ✔✔- Possess only 1 pair
of wings. The hind wings have been modified to form halteres.
- The larvae are often referred to as maggots and often are worm-like
lacking appendages. They are usually adapted to live in their food (semi-
aquatic) and have 1 or 2 pair of spiracles at the end of the abdomen. The
pupae may be active and move around or be in the form of a puparium (a
small capsule). Flies are all holometabolous.
- The order Diptera is very important and are critical in the breakdown of
biological material. The order is also extremely important in the
transmission of diseases
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Verified
Answers | Already Graded A+
Order Strepsiptera (Twisted Wings): Twisted-wing Parasites - 🧠ANSWER
✔✔- This is a very small unusual order with hypermetamorphosis.
- The metathoracic wings are large, membranous, fan-likewith few veins.
- Males have elaborate antennae that are used to detect pheromones
produced by females.
,- Adult females lack eyes, antennae, and legs. The head and thorax of the
female are fused and protrude from the body of the host insect.
- The space between adult body and old larval cuticle is the access path to
the female genital pores and is called the brood canal.
- All twisted-wing parasites are holometabolous
Order Mecoptera (long wings): Scorpionflies - 🧠ANSWER ✔✔- Adults have
an elongated clypeus which gives the appearance of a beak.
- These insects have chewing mouthparts located at the end of the beak.
- In general, scorpionflies are weak fliers.
- Adult males will use pheromones to attract the females and induce mating
via a nuptial gift.
- Males will compete for the availability of dead insects. The males will use
these dead insects as nuptial gifts for the females. The bigger the gift (dead
bug) the more attractive the male is to the female. If males lack a gift, they
will construct piles of saliva to be offered to the potential female mates.
- Males without any gifts will attempt forced copulation, but this behavior is
usually unsuccessful in terms of actually producing offspring.
, Order Siphonaptera (tube wingless) Fleas - 🧠ANSWER ✔✔- Small, laterally
flattened insects
- All fleas are wingless, and have well developed jumping legs. They are
equipped with sucking mouthparts and are holometabolous.
- Ectoparasites and are blood feeders as adults.
- The most important disease transmitted by fleas is plague. Plague is
primarily a disease of rodents and is caused by the bacteria Yersinia pestis.
It is vectored (transmitted) by the common rat flea.
Order Diptera (two wings): The Flies - 🧠ANSWER ✔✔- Possess only 1 pair
of wings. The hind wings have been modified to form halteres.
- The larvae are often referred to as maggots and often are worm-like
lacking appendages. They are usually adapted to live in their food (semi-
aquatic) and have 1 or 2 pair of spiracles at the end of the abdomen. The
pupae may be active and move around or be in the form of a puparium (a
small capsule). Flies are all holometabolous.
- The order Diptera is very important and are critical in the breakdown of
biological material. The order is also extremely important in the
transmission of diseases
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
