MALLOPHAGA. 239 



genus Colpocephalun) is wide spread among the Wirds. Keing found on 

 half a dozen (hfferent orders. 



Colpocephalum osborni Kellogg. — A consideral)le numler of .speci- 

 mens, male and female, from the bald eagle. Haluicctus leucocephalKS 

 (L.). The species -was described from the white-tailed kite. Klnnu.s 

 leucuruf! (Vieill.). Its nearest relatives are the European species C 

 dissimile Piaget and C. tricinctum Xitzsch. 



Colpocephalum quadrimaculatus Carriker. — A single male of this 

 species was taken on the red-winged blackbird, Agelaius phoeniceus 

 (L.). Mr. Carriker says concerning it: "This is the first specimen of 

 this l)eautiful species that I have seen since describing it some years 

 ago from a single male taken on the American crossbill, Loxia curvirostra 

 minor (Brehni). The type was collected by myself from a freshly 

 killed specimen taken in a i-egion where no red-winged blackbirds are 

 found, so that its occuiTence on this host is rather peculiar. It seems 

 l)robable that there is room for doubt as to the host." It has not been 

 possible to determine the possibility of Ihis being a case of straggling 

 on account of the fact that the specimen was taken early in the season, 

 before the work had ])een well systematized. The insect note-bcok 

 failed to give the exact date of capture of this specimen, so that the 

 other birds captured that same day are not known. It should be said, 

 however, that no crossbills were observed by the party. 



Colpocephalum sp (?) — A young male just emerging from the egg, 

 probalih' belonging to this genus, was taken from Wilson's black cap, 

 Wilsonia pusilla (Wils.). It could not of course be identified. 



Trinoton luridum Nitzsch. — A single specimen, female, of this com- 

 mon parasite of the ducks was taken from the-black duck. Anas rubripes 

 (Brewst.). It is closely confined to the ducks, and is easily recognized 

 by the characteristic markings and large size. 



Trinoton lituratum Nitzsch. — A single specimen, female, of this species 

 was taken from Anas rubripes (Brewst.). It too is confined closely 

 to the ducks. It may be recognized by its broad outline, and by the 

 characteristic brown markings on the head and thorax. It is very 

 interesting to know that mites infest bird lice as parasites. A number 

 of mites were found clinging to the sides of this species of Trinoton. 



Laemobothrium giganteum Xitzsch. — A considerable number of 

 specimens of this gigantic V)ird louse Avere taken from the bald eagle, 

 Haliaeetus leucocephalus (L.). The largest specimen measures 11mm. 

 in length, and about 2.2mm. in abdominal width. This is the only 

 representative of the genus in this collection. 



Nitzschia latifrons Carriker. — The description and figure of this 

 new species of one of the smallest genera of the order were prepared by 

 Mr. Carriker and have been already published (1910). It most nearly 



