22 PROCEEDINGS OF THE NATIONAL. MUSEUM Vol. 68 



also were obtained from same hair sample. Other mummy lice ma- 

 terial examined as follows: Abdomen of female and first nymphal 

 instar (dissected from nit) taken from mummy B^710^ Ancon, 

 Peru; 5 males, 11 females and numerous nymphs in various sta^res 



of development, as well as nits from mummy ^tvT 5 Canyon del 



Muerto, New Mexico. Also nits were obtained from the following 

 hair samples from the heads of Indian mummies from the American 



Museum of Natural History ^J^^- ^^^g. ^gg^» ^^^3. 707, ^. 



As previously mentioned (Ewing, 1924), the lice from Peruvian 

 Indian mummies were found to be " slightly different " from those 

 of the mummies from the southwestern part of the United States. 

 Those from Peru are slightly suggestive of the corporis form in the 

 segmentation of the antennae, there being a rather noticable distal 

 enlargement of segments II, III, and IV. Also all the ventral 

 setae of the Peruvian lice are more peglike than those of the New 

 Mexico type, this being particularly true of the ventro-lateral pair 

 of segment VI. 



To this variety should be referred a lot of 4 males and 3 females 

 and 1 nymph taken from an Indian woman at Coban, Guatemala, 

 (Bishopp 10403) and a lot consisting of 1 female, 3 males, and 1 

 male nymph taken on the island of Trinidad, race of host unlaiov/n. 

 These lice from Trinidad are slightly smaller, on the average, than 

 those taken from the Indian mummies, but they agree with tlio 

 mummy lice in essential characters. A lot of lice from a Greenland 

 Eskimo and another from an Aleutian Eskimo, or probably more 

 correctly an Aleutian mixed breed, do not belong to the variety 

 americanus. 



PEDICULUS (PEDICULUS) HUMANUS HUMANUS Linnaeus. 



Plate 3, fig. 8 ; text figs. lA, 2, 3A, 7 



17!18 Pediculus humanus Linnaeus (part), Syst. Nat., erl. 10, p. 610. 

 17G6 Pediculus humanus, variety / Linnaeus, Syst. Nat., ed. 12, vol. 



2, p. 1016. 

 1778 Pediculus humanus. variety capitis De Geer, Mem. Hist. Ins., vol. 



7, p. 67, pi. 1, fii;. 6. 



1817 Pediculus cerviaUs Leach, Zool. Misc., vol. 3, p. 66. 



1818 Pediculus capitis NiTzscii, Germar's Mag., vol. 3, p. 305. 

 1842 Pediculus capitis Denny, Mon. Anop., p. 13, pi. 26, fig. 2. 

 1874 Pediculus capitis Giehet., Ins. Epizoa, p. 30, pi. 1, figs. 1-2. 

 1880 Pediculus capitis Piaget, Les Ped., p. 619, pi. 51, fig. 2. 



1908 Pediculus capitis Dalla Tokre, Anoplura Gen. Ins., p. 8, pi. figs, la 



and 1&. 

 1910 Pediculus capitis Mjobeeg (part), Ark. f. Zool., vol. 6, no. 13, p. 168. 



