r ANOPLURORUM BRITANNIA. 29 



near the base ; antennae long, thick, situated in a concavity of 

 the lateral margin, the first and second joints very thick, 

 the remainder gradually smaller; thorax sub- conical, rather 

 shorter than the head, the segments obscurely defined, 

 centre slightly channelled, basal angles produced; abdomen 

 large, ovate, ashy flesh-colour, but variable in tint, cha- 

 greened, very hairy; intestine dull red and distinct; legs 

 dull chestnut, long and stout ; tibia very large, internally 

 clavate, and terminating in a strong tooth ; tarsus conical ; 

 ungues slender and curved. Length 1 to l. 



I suspect this species to be the pilifcrous of Dr. Bur- 

 meister. I have found it upon dogs two or three times, but 

 it is by no means of common occurrence. I also received 

 some specimens from the Ferret, (Mustela furo). It is 

 rather variable in colour, for while some are of a dull ashy 

 flesh colour, others have the whole abdomen tinged of a fine 

 red, and this more especially when the Insect is gorged 

 with blood. 



6. ELEMATOPINUS EURYSTERNUS. (Louse of the Ox.) 



Plate XXV. Fig. 5. 



Chestnut and shining ; head sub-triangular ; occiput 

 rotundate; thorax transverse, quadrate; abdomen large, 

 ovate, ashy white ; spiraculi prominent and fuscus. 



llaematopinus eurysternus. Stephens Cata. pt. ii. p. 329. Pedi Eurystemus, 

 Nitzscb. Germ. Mag. vol. iii. p. 305. Burmeister Gen. Insect. Ord. 

 Rhyn. sp. 14. 



Head chestnut, sub-triangular, anterior part transversely 

 and finely rugulose; occiput rotundate; eyes moderate, pale 

 fuscus, situated on a projection of the temporal margin at 

 about one-third from the base ; antennae cylindrical, pale, 

 ochraceous and slender ; thorax dull chestnut, subquadrate, 



