1 6 MEDICAL ENTOMOLOGY 



EXERCISE 6b 



ORDER MALLOPHAGA (BIRD LICE) 



Systematic Study. 



As representatives of the families of the Order Mallophaga 

 the following are available: 



A. Suborder Ischnocera. 



a. Family Trichodectidae. 



Genus Trichodectes, examples, T. latus and T. 



b. Family Philopteridae. 



Genus Lipeurus, example, L. polytrapezius, the long turkey 

 louse. 



Genus Goniodes, examples, G. stylifer of the turkey and 

 G. dissimilis of the hen. 



B. Suborder, Amblycera. 



a. Family Gyropidae. 



Genus Gyropus, examples, G. sp. from ground-squirrel. 



b. Family Liotheidae. 



Genus Menopon, examples M. pallidgm. the common hen 

 louse and M. biseriatum, also from hens. 



Genus Trinoton, example, T. luridum, the duck louse. 

 As representatives of the Trichodectidae and Liotheidae have 

 previously been drawn, draw one example each of the two re- 

 maining families, Philopteridae and Gyropidae. 



EXERCISE 7a 



ORDER HEMIPTERA, SUBORDER PARASITA, FAMILY PEDICULID^ 



THE SUCKING LICE OF MAMMALS 



Anatomical Study. 



The suctorial lice are wingless, as are the biting lice, and the 

 two may be confused, if attention is not paid to the structure of 



