ANOPLURORUM BRITANNIA. 225 



upon the Ruff (Machetes pugnax), and the Razor Bill (Alca 

 Torda), Mr. Thompson has sent it me from Belfast, taken 

 on the Red-shank (Totanus calidris), Curlew (Numenius 

 arquata), and Kittiwake Gull (Larus trydactylus). 



11. MENOFON GIGANTEUM. Denny. (Louse of the 

 Stock Dove.) 



Plate XXI. Fig. 2. 



Fulvous-yellow, shining ; head with a small fuscous patch 

 on each side ; prothorax with a cruciform depression, lateral 

 margin reflected. 



Head large, transverse, anterior part convex, with a fus- 

 cous spot in the centre, and a small transverse patch before 

 the eyes; vertex concave; eyes small; antennae obscure; 

 prothorax large, anterior part contracted, posterior semi- 

 circular, centre with a cruciform depression in the centre, 

 lateral margin produced anteriorly, and reflexed; meso- 

 thorax small ; metathorax transverse, lateral margin oblique 

 and acute ; abdomen large, obtusely ovate ; legs long and 

 thick, femora of the anterior pair sub-lobate, tarsi strong, 

 nearly as long as the tibia. Length a little exceeding 1. 



This species, which is the largest of the genus I am ac- 

 quainted with, I received from my brother, who took it 

 upon the Stock Dove (Columba GEnas), in Norwich. 



12, MENOPON PERDICIS. -Denny. (Louse of the 



Partridge.) 

 Plate XXI. Fig. 9. 



Obscure testaceous-yellow and pubescent ; head large, 

 semilunar, with a fuscous spot on each side of the clypeus, 

 and band before each eye ; prothorax nearly as wide as the 

 head, somewhat elliptical, with three longitudinal lines and 

 one transverse ; abdomen broad. 



Head large, transverse, semilunar ; clypeus slightly pro- 



Q 



