C. Commonly act as vectors for different pathogens (including bacteria, viruses, protozoa and nematodes)
D. Can cause blood loss and irritation due to bites which can subsequently cause production losses (eg. animals go off food and so there is a drop in milk production)
E. answers A, C and D
F. answers A, B, C and D
Question 9
Question
Identify this family of nematocera.
-Wings are broad; without scales on body and wings; mouthparts no longer than head
-wings frequently spotted, mouthparts capable of biting, body not covered with down
-larvae develop in water, mud, sand or dung
-main genus is culicoides
There are three main groups of Culicoides within the family Ceratopogonidae.
These are the “maritime species” which breed in saline waters, the “native species” which breed in fresh water
and feed on marsupials and stock and lastly the “introduced species” which breed in cattle dung
Select "three" answers below that show correct species within these groups,
Answer
“maritime species” = C. immaculatus, C. marmoratus
“native species” = C. marksi
“introduced species”= C. brevitarsis, C. wadai
“introduced species”= C. marksi
“maritime species” = C. brevitarsis, C. wadai
“native species” = C. immaculatus, C. marmoratus
Question 11
Question
Which species within the family are known for causing "Queensland itch" in horses and transmitting Bluetongue?
Answer
Culicoides brevitarsis and Culicoides wadai
Culicoides immaculatus and Culicoides marmoratus
Culicoides wadai and Culicoides marmoratus
Question 12
Question
Identify this Dipteran family.
-large, slow fly
-very painful bite
-larval stages are aquatic
-mainly cause irritation and blood loss
-antennae having 8 segments or fewer
-antennae not aristate