ANOPLURORUM BRITANNIJE. 193 



joint the longest, the third conical and acute ; prothorax 

 much narrower than the head, sub-quadrate ; metathorax 

 transverse, sinuated posteriorly, and ciliated with a dark 

 semicircular line in the centre ; abdomen oblong, pale yel- 

 low, the first eight segments with a transverse fuscous band 

 on the lower margin, last segment chestnut; legs pale ochra- 

 ceous yellow, long, rather slender ; tarsi elongate ; ungues 

 long, nearly straight. Length 1 . 



Not uncommon upon the Fallow Deer (Cervus dama), 

 upon which animal I have found it in greatest plenty on the 

 inner side of the thigh. I am also indebted for specimens of 

 this species to George Walker, Esq. of Killingbeck Lodge. 



9. TRICHODECTESSPH^ROCEPHALUS. (Louse of the Sheep ) 



, Plate XVI I. Fig. 4. 



Head nearly orbicular; clypeus rugulose, and ciliated 

 with stiff hairs, the third joint of the antennae the longest 

 and clavate. 



Trichodectes sphaeroeephalus. Nitzsch. Germ. Mag. iii. p. 296. Steph. 

 Cat. pt. ii.p. 330. Burmcister Handbuch. ii. pt. ii. p. 436. Pediculus 

 Ovis. Linn. Syst. Nat. ii. 1017. 8. Faun. Suec. 476. 1945. Schrank. 

 Ins. Aust. 502. tab. i. fig. 8. 9. Redi, Expe. pi. xxii. fig. Sinist. Turton. 

 iii. 696. 



Head and thorax ferruginous, the former nearly orbicular ; 

 clypeus convex and rugulose, with an oblong fuscous spot 

 on each side, terminating in two lines extending to the 

 occiput; eyes very small ; antennae pale fulvous, the third 

 joint the longest and clavate ; prothorax sub-conical, trun- 

 cate before and behind, nearly as wide as the head ; meta- 

 thorax transverse, the width of the head, base rotundate, 

 with a semicircular impression in the centre ; abdomen ob- 

 long, obtuse, pale yellow, the first seven segments with a 

 narrow transverse pitchy band at the sutural margin ; legs 



o 



