194 MONOGRAPHIA, ETC. 



fulvous, rather thick ; tibiae abruptly clavate and toothed ; 

 tarsi long ; ungues nearly straight. 



The only specimen of this species which I have seen, was 

 forwarded by the Rev. L. Jenyns, who took it from a sheep. 

 It approaches very nearly to the succeeding species, but 

 may be immediately known by the rugulose clypeus and 

 clavate antennae, &c. 



10. TRICHODECTES SIMILIS. Denny. (Louse of the 

 Red Deer.) 



Plate XVII. Fig. 6. 



Head and thorax bright chestnut and finely pubescent, 

 the former rotundate ; antennae with the third joint the 

 longest and cylindrical ; legs slender. 



Head rotundate ; clypeus convex, slightly produced and 

 entire, two diagonal lines passing from the anterior part to 

 the occiput ; eyes prominent ; antennae long and slender, 

 the third joint longer than the preceding, and nearly cylin- 

 drical; prothorax narrower than the head, sub -conical ; meta- 

 thorax wider than the head, transverse, posterior margin con- 

 cave and ciliated, with a sub-angular depression across the 

 centre ; abdomen oblong, pale tawny-yellow, shining, and 

 pubescent, the first seven segments with a narrow trans- 

 verse pitchy band at the sutural margin ; legs long and 

 slender, pale fulvous ; tarsi short ; ungues long and nearly 

 straight. Length f . 



The specimens from which the figure was taken were com- 

 municated by George Walker, Esq. of Killingbeck Lodge, 

 who obtained them from Red Deer at Bolton Abbey, the 

 seat of His Grace the Duke of Devonshire. 



Professor Nitzsch enumerates the following species which 

 I have never seen, Trichodectes retusus, from the Martin, 

 Trichodectes exilis,from the Otter. 



