84 PARASITES OF THE DOMESTIC ANIMALS 



eral color as M. trigonocephalum, but is larger. Female about 2.5 mm. in 

 length (Fig. 54). 



Less common than preceding species. It attacks young chicks, espe- 

 cially about the head and anus. It may also be found upon turkeys and 

 peafowl. 



Lice of Turkeys 



The Philopteridse of turkeys are Goniodes stylifer and Lipeurus 

 meleagridis. 



1. Goniodes stylifer. — Head broad as long, well rounded in front, with 

 posterior angles projected backward into pomts which are terminated bj^ 

 strong bristles. Thorax angular and narrowed anteriorly. Legs slender 

 and hairy. Abdomen broad, with tongue-shaped bands on the sides. 

 Hairs are numerous and long on both surfaces. Color yellowish white. 

 Female about 3 mm. in length (Fig. 52). 



This is a large species common upon turkeys everywhere. 



2. Lipeurus meleagridis (L. polytrapezius) . — Head longer than broad, 

 romided in front and at the temples. Thorax and abdomen narrow and 

 elongate; last abdominal segment in female deeply notched. Color pale 

 yellow. Female about 2.8 mm. in length (Fig. 53). 



Also quite common. 



The Menopum of the turkey is M. hiseriatum (Fig. 54), referred to 

 under the Liotheidae of chickens. 



Lice of Ducks and Geese 



Of the Philopteridse ducks and geese harbor two species, Philopterus 

 icterodes and Lipeurus anatis. 



1. Philopterus icterodes {Docophorus icterodes). — Head longer than 

 broad, rounded m front; lower portion expanded and rounded. Abdo- 

 men oval in outline, white in center, and with dark lateral bands. Color 

 brownish red. Female 1 mm. in length. 



Of common occurrence. 



2. Lipeurus anatis (L. squalidus). — Head longer than broad, cone- 

 shaped, rounded in front. Thorax and abdomen elongate with dark 

 borders. On the abdomen the border is broken into patches correspond- 

 ing with the segments. General color light yellow. Female about 4 mm. 

 in length (Fig. 55). 



Frequently found upon both domestic and wild ducks. 

 The Liotheidae of ducks and geese are Trinotwn luridum and T. 

 lituratum. 



3. Trinotwn luridum (Trinoton luridum). — Head as wide as long, 

 somewhat triangular m shape, with rounded corners. Thorax longer 

 than head. Abdomen long and narrow, with dark bands upon the 



