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1. VETERINARY ENTOMOLOGY
AND ACAROLOGY
VPA-221 (1+1)
Presented by: Dr. Hardeep Kalkal

2. LICE
• PHYLUM: ARTHRPOPODA
• SUB PHYLUM: MANDIBULATA
• SUBCLASS: PTERYGOTA
• DIVISION: EXOPTERYGOTA
• ORDER: MALLOPHAGA
SIPHUNCULATA

3. • Earlier both the Orders were referred to as
Order: Pthiraptera
– Blood sucking insects entirely parasitic on animals
– Permanent ectoparasites of birds and mammals
– Body flattened dorsoventrally and covered with
small spines
– Spiracles dorsally situated
– Thorax with 3 pairs of legs with 2 segmented
tarsus
ORDER
Mallophaga (Biting lice)
Siphunculata/Anoplura (Sucking lice)

4. – Wings absent
– Mouth parts adapted for biting or sucking
– Antennae 3-5 jointed
– Metamorphosis incomplete (Egg-Nymph-Adult)- 3
Ecdyses (moults)
– Carriers of bacterial and helminthic diseases
– Highly host specific

12. BITING LICE

13. Menopon galliane

16. Menacanthus stramineus

19. Heterodoxus spiniger

22. DOG BITING LICE

23. Lipeurus caponis

26. Goniodes gigas

28. Goniocotes gallinae

32. Bovicola bovis

34. Haematomyzus elephantis

35. Linognathus spp.

36. Linognathus vituli

38. Linognathus setous
Linognathus ovillus

39. Solenopotes capillatus

41. Haematopinus spp.

42. Haematopinus eurysternus

44. Haematopinus suis

46. Haematopinus tubercularus
Paratergal
plates

47. Haematopinidae Linognathidae
Short & conical head , so know as
Short nosed louse
Long & pointed head, so known as
long nosed louse
All three pairs of legs are almost
equal in size.
First pair leg is smallest whereas
3rd pair leg is largest
Presence of dark brown or black
thickened chitin called paratergal
plates , along the side of
abdomen
Paratergal plates absent
Largest louse of mammal Smaller in size
Difference between Haematopinidae and
Linognathidae Lice

48. Pediculus humanus capitis

50. Phthirus pubis