Lab practical #1 - Orthopteroid Orders

Question 1

Answer 1

Grylloblattodea - “Rock Crawlers”

“Gryllo” = Cricket like

“Blatto” = Cockroach like

Question 2

Answer 2

Mantophasmatodea

Question 3

Answer 3

Phasmida - “Stick insects”

1. Stick-like
2. Legs unmodified
3. Wingless (except for tropical species)

Question 4

Answer 4

Mantodea - “Mantis”

1. Raptoral forelegs arising from anterior end of long prothorax
2. Usually winged adults
3. Mantidae

Question 5

Answer 5

Blattodea - “Cockroaches”

1. Cockroach-like
2. Flattened
3. Long antenna
4. Head Covered by pronotum
5. Winged or Wingless

Question 6

Blattidae

Answer 6

Blattodea (Order)

1. Larger roaches when mature
2. Female with subgenital plate divided
3. Male with similar styli, long, and straight
4. Periplaneta - American Cockroach

Question 7

Blattellidae

Answer 7

Blattodea (Order)

1. Smaller roaches
2. Female with subgential plate entire (= note divided)
3. Male with styli asymmetrical or unequal in size
4. Blatella - German Cockroach

Question 8

Cryptocercidae

Answer 8

Blattodea (Order)

1. Reduced/cryptic cerci
2. 3 spp. in mountain ranges of New York to Alabama
3. Feed on decaying wood
4. Wood digested by flagellate protozoans in hindgut
5. Lining & contents of hindgut are lost at each molt
6. Must obtain new fresh supply of protozoans by eating fecal pellets

Question 9

Answer 9

Isoptera - “Termites”

1. Cerci
2. Bead-like antenna
3. Abdomen and thorax broadly joined
4. Winded (reproductives) and Wingless (Soldiers/Workers)
5. Termitidae - “Oil-can” head for emitting defensive fluids (developed rostrum “nasus”

Question 10

Answer 10

Dermatpera - “Earwings”

1. Cerci forcep-like (differ from Japygidae by presence of compound eyes)
2. Winged or Wingless

Question 11

Answer 11

Embiidina - “Webspinners”

1. Basal segment of fore tarsus and hind femora enlarged
2. Produce silk with glands in the basal segments of the fore tarsi
3. Males - winged or wingless
4. Females - are always wingless
5. Live in silken in soil, on bark, or among epiphytic plants

Question 12

Answer 12

Plecoptera - “Stoneflies”

1. ADULTS:
   
   1. Long antenna
   2. Cerci short or long
   3. Long Body
   4. Parallel-sided
   5. Flattened
   6. Wings overlapping at rest
2. LARVAE (naiads):
   
   1. Flattened
   2. Long antennae and cerci (no median filament as in Ephemoptera)
   3. Short finger-like gills on thorax