Entomology Prelims Review Chapter 3

head, thorax, abdomen

body divided into ______

2nd and 3rd

adult bear three pairs of legs attached to the thorax and 2

pairs of wings and attached to the ____ thoracic

segment

veins

wings with hollow tubes called ____ which are useful for

identification

Orthoptera, Diptera

Mandibulate (chewing) example:

Diptera, Hymenoptera

Haustellate (sucking) example:

Siphonaptera, Diptera

Piercing example:

Hymenoptera and certain Lepidoptera

Non-piercing/reduced/non-functional example:

DIPTERA

(Two-winged/True flies)

HEMIPTERA

(True Bugs)

DICTYOPTERA / BLATTODEA

(Cockroaches)

COLEOPTERA

(Beetles)

SIPHONAPTERA

(Fleas)

PHTHIRAPTERA

(Louse)

ANOPLURA

(Sucking louse)

MALLOPHAGA/ISCHNOCERA

(Chewing or biting louse)

HYMENOPTERA

(Ants, bees, wasp)

haltere

well-developed anterior wings; posterior wing represented

by small club-like organ, the ____ (organ of balance)

Palpi
Labrum
Postmentum
Labellum
Prementum

Parts

NEMATOCERA

BRACHYCERA

CYCLORRHAPHA

Suborders of veterinary importance:

NEMATOCERA

Antenna - Longer than head and thorax; >8 segments

BRACHYCERA

Antenna - Shorter than thorax;3-8 segments

CYCLORRHAPA

Antenna - 3 segments

NEMATOCERA

Larva - Aquatic; well developed head and mandible

BRACHYCERA

Larva - Incomplete retractile head

CYCLORRHAPA

Larva - Vestigial head; apodous (no limbs)

NEMATOCERA, BRACHYCERA

Pupa - Obtectate

CYCLORRHAPA

Pupa - Coarctated

NEMATOCERA

Cross veins in wings-Absent

BRACHYCERA

Cross veins in wings-Present

CYCLORRHAPA

Cross veins in wings-Limited

BRACHYCERA

Abdomen - 7 visible segments

CYCLORRHAPA

Abdomen - <7 visible segments

BRACHYCERA

Arista - Usually absent

CYCLORRHAPA

Arista - Present (dorsal)

NEMATOCERA

Body - Small and slender

BRACHYCERA

Body - Small to large and stout-bodied

CYCLORRHAPA

Body - Medium-sized

NEMATOCERA

Palp Usually one segment

CYCLORRHAPA

Palp - 4-5 segments

BRACHYCERA

Palp Two segments held toward

Scales

____ are present on the head, thorax, abdomen, legs, and wings in Culicidae

plumose
pilose

Antenna ____ in male and ___ in female

spherical, proboscis

Head is ___ and the mouthparts form the long,

slender ____

female

Only_____ are blood sucking} males subsist on juices of flowers and fruits

mandibles
maxillae
Labrum
labium
labellum
mandibles

Proboscis consists of the ____ and ____ which are the

piercing instruments enclosed in the upper lip called ____

epipharynx and the lower lip, the ___; it also encloses the

hypopharynx; the tip of the labium is modified to form the

____; ______ are absent in the male mosquito

surface of water or on floating vegetable matter
16-24 hours
algae but others are carnivorous
siphon tube
4 times
7 days
thumbler
trumpet
2-3 days

Family Culicidae (MOSQUITO)

Life cycle:

Eggs laid on the _______________ 🡪 eggs hatch in

______ into larvae or 🡪 larvae feed on _______;

they breathe through a ______ 🡪 larva molts _____ in about ____ 🡪

becomes an obtectate pupa or ______; they breathe through a ____;) it

does not feed-imago emerges after _____ then sucks blood after 24 hours 🡪

lay eggs after about a week

Laid Singly with Lateral

Anopheles Egg

Laid in Mass (Egg Raft)

Culex Egg

Laid Singly without Lateral Floats

Aedes Egg

Lies Parallel to the water Surface no siphon tube

Anopheles Larvae

Hangs Diagonally from the water surface

Culex Larvae

Hangs diagonally from the water surface

Aedes Larvae

short and Stout breathing trumpet

Anopheles Pupae

Long and Narrow breathing trumpet

Culex Pupae

Long and Narrow breathing trumpet

Aedes Pupae

Female Palp is as long as the proboscis

Anopheles Palpi

Palp of female is shorter than proboscis

Culex Palpi

Palp of female is shorter than proboscis

Aedes Palpi

diagonally against the landing surface

Anopheles resting

parallel to the landing surface

Culex resting

parallel to the landing surface

Aedes resting