Lice of Ox, Sheep and Goat. 95 



Haematopinus Colorata: found on the ass seems to be a 

 mere variety of the last, being a little larger, with fewer hairs on 

 the head, a darker color, and a quadrilateral spot of color on the 

 sternum. 



Trichodectes Pilosus. Hairy T. Head slightly wider 

 than long, rounded in front, abdomen elliptical, color yellow with 

 brown spots, thorax brown, body hairy. Length 1.6 mm. to 1.9 

 mm. Horse, ass and mule. 



Trichodectes Pubescens. Downy T. This is smaller 

 than the last and has the hairs on the head confined to the 

 margins. 



LICE OF OX. 



H. Eurysternus (euros broad): Large Bellied Cattle Louse. 

 This is fawn colored, with yellow or gray abdomen, distinguished 

 by its very large, oval abdomen. Length 2.5 to 3 mm. 



H. Tenuirostris : Narrow Nosed H. This is rarer and 

 smaller than the last, and has its head terminated in a narrow 

 cone where the eurysternus is rounded. Inserted in deep notch 

 in prothorax. Length 2.5 to 3 mm. Probably H. Vituli of calf. 



T. Scalaris. Scaly T. Head slightly longer than broad, 

 rounded in front, very hairy, but fewer on last segment than 

 T. Pilosus. Length 1.5 mm. On ox and (perhaps accidentally) 

 on the ass. 



LICE OF SHEEP AND GOAT. 



Trichodectes Spaerocephalus (sphaer sphere) Round 

 Headed T. Head broader than lung and in fiont than behind, 

 rounded in front, antennas hairy, abdpmen elliptical, transversely 

 elongated dorsal spot on each ring. Length 1.5 mm. Has been 

 found on sheep and goat. 



H. Stenopsis (stenos narrow). Head long, narrow, conical, 

 round in front, notched laterally, broadening to the thorax ; 

 thorax very shoit ; abdomen long, oval, with sinuous borders. 

 Straw-yellow, abdomen grayish. Length 1.5 to 2 mm. On goat. 



T. Climax (Caprae) (klimax ladder, inclined) T. of Goat. 

 Scaly T. Head as broad as long, with broad, shallow notch in 



