Lab practical #1 - Hemiptera (Heteroptera)

Question 1

Answer 1

Reduviidae - “Assassin Bug”

1. Head conical, narrowed behind eyes
2. Beak short (3 - segments) and fitting into a groove of prosternum
3. Triatoma

Question 2

Answer 2

Psocodea

Anoplura (Suborder) “Sucking Lice”

1. Feed on blood of their host
2. Tarsi modified for grasping hairs of host
3. Head narrower than, prothorax
4. Sucking mouthparts

Question 3

Answer 3

Thysanoptera - “Thrips”

1. Sucking type mouthparts with proboscis directed posteriorly
2. Very Small
3. Wings present with long fringe hairs or wings absent

Question 4

Hemiptera Order (Heteroptera)

Answer 4

1. Mouthparts forming beak arising from front of head
2. Wings with apical portion membranous and overlapping each other, forming triangular area at base

Question 5

Answer 5

Psocodea = Phthiraptera (Anoplura & Mallophaga) and Psocoptera

“Chewing Lice”

1. Tarsi modified for grasping hairs and feathers of host
2. Head wider than prothorax
3. Chewing mouthparts for feeding on sking, hair, and feathers of host
4. Chewing lice with bird hosts have 2-tarsal claws
5. Chewing lice with mammal hosts have 1-tarsal claw

Question 6

Answer 6

Gelastocoridae - “Toad Bugs”

1. Resemble small toads

Question 7

Answer 7

Cimicidae - “Bed Bugs”

1. Oval Shaped
2. Wingless
3. Cimex lectularius - is less common now than 50 years ago

Question 8

Answer 8

Gerridae - “Water Striders”

1. Forelegs with anteapical claws
2. Middle legs arising closer to hind legs than front legs
3. Femur of hind leg extend beyond end of abdomen

Question 9

Answer 9

Corixidae - “Water Boatmen”

1. Elongate
2. Flattened
3. Small
4. Dorsal surface of body crossed by lines
5. Legs used for swimming, clinging to veg, and straining food from water

Question 10

Answer 10

Coreidae - “Leaf-footed bugs”

1. Hemelytra with many veins,
2. Scent glands present on thorax between middle and hind coxae
3. Head narrower and shorter than pronotum

Question 11

Answer 11

Psocodea - Psocidae

“Bark Lice”

1. Clypeus well developed and protruding
2. Usually with wings

Question 12

Answer 12

Veliidae - “Broad Shouldered Water Striders”

1. Forelegs with anteapical claws
2. Middle legs arising about midway between front and hindlegs
3. Femur of hind leg not extending beyond end of abdomen

Question 13

Answer 13

Psocodea

“Book Lice”

1. Clypeus well developed and protruding
2. Usually wingless
3. Smaller than Psocoidae

Question 14

Answer 14

Thyreocoridae - “Black Bugs”

1. Antenna (5 -segmented)
2. Black
3. Scutellum covering most of the abdomen

Question 15

Answer 15

Blissidae - “Chinch Bug”

1. Similar to Lygaeidae, but smaller
2. Black and White

Question 16

Answer 16

Nepidae - “Water Scorpions”

1. Long caudal breathing tube
2. Raptorial front legs

Question 17

Answer 17

Pscodea = Phthiraptera (Anoplura & Mallophaga) and Psocoptera - Pediculus

(Head and Body Lice) - “Sucking Lice”

1. Feed on blood of their host
2. Tarsi modified for grasping hairs of host
3. Head narrower than, prothorax
4. Sucking mouthparts
5. Subspecies of the same species Pediculus humanis (body louse)
   
   1. Vector of the pathogen causing epidmeic typhus

Question 18

Answer 18

Nabidae - “Damsel Bug”

1. Small
2. Slender
3. Enlarged front femora
4. Hemelytra membrane with many small cells around margin

Question 19

Answer 19

Belostomatidae - “Giant Water Bugs”

1. Elongate
2. Flattened
3. Large
4. Raptorial front legs
5. Females of some belostomatidae ovipost their eggs on the hemelytra of a male

Question 20

Answer 20

Notonectidae - “Backswimmers”

1. Similar to corixids, but dorsal surface convex or keeled
2. Hind tarsi without claws

Question 22

Answer 22

Miridae - “Plant Bug”

1. Hemelytra with cuneus
2. Lygus “Tarnished Plant Bug”

Question 23

Answer 23

Psocodea = Phthiraptera (Anoplura & Mallophaga) and Psocoptera - Phthirus

(Crab Lice) - “Sucking Lice”

1. Feed on blood of their host
2. Tarsi modified for grasping hairs of host
3. Head narrower than, prothorax
4. Sucking mouthparts
5. Subspecies of the same species Phthirus pubis (crab louse)
   
   1. Not known to carry disease pathogens

Question 24

Answer 24

Cydnidae - “Burrow bugs”

1. Similar to pentatomids, but tibiae spiny

Question 25

Answer 25

Geocoridae - “Big Eyed Bug”

1. Similar to Lygaridae, but eyes are large
2. Head as wide as pronotum

Question 26

Answer 26

Aradidae - “Flat Bark Bugs”

1. Brown
2. Small
3. Very Flat

Question 27

Answer 27

Berytidae - “Stilt Bug”

1. Clubbed antennae
2. Long
3. Slender Body and Appendages
4. Front legs not raptorial

Question 28

Answer 28

Pentatomidae - “Stink bug”

1. Atenna (5-segmented)
2. large, triangular scutellum
3. Nymphs (as shown in picture), have wing buds during 3 to 4 instar

Question 29

Answer 29

Pentatmidae - “Stink Bug”

1. Antenna (5-segmented)
2. Large
3. Triangular scutellum
4. Nymphs have wing buds during 3 to 4 instar

Question 30

Answer 30

Tingidae - “Lace Bug”

1. Dorsal surface of body sculptured

Question 31

Answer 31

Lygaeidae - “Seed Bug”

1. Hemelytra membrane with 4 to 5 simple veins