Parasitology Exam-diptera

Question 1

Sanitary importance

Answer 1

-larval stages of flies=myiasis
-adult stages can be hematophagus or vectors
Mosquitoes- filariae
Sand flies- Leishmania
Horse flies- Trypanosomes
Flies- Trypanosomes, Thelazia

Question 2

Family Culicidae

Answer 2

• proboscis equal to or longer than head+thorax
• plumose antenna in males, pilose in females
• well differentiated subfamilies
• only females are hematophagus
• eggs laid in still water, protected from light
• 4 larval stages that are aquatic

Question 3

Larval morphology, nematocera

Answer 3

• large head, antennae and chewing mouthparts
• rounded, large non segmented thorax
• abdominal segments with spiracles, different btw subfamilies
• last abdominal segment w tufts and anal papillae

Question 4

Family Psychodidae

Answer 4

Sand fly

• small, hairy, yellowish
• head w equal antenna btw sexes, short proboscis, long maxilar palps
• male w genital claspers in abdomen
• eggs laid terrestrial, dark and decomposing organic materia
• telmophagus

Question 5

Cyclorrapha

Answer 5

Flies