ANOPLURORUM BRITANNIA. 87 



as wide as the head ; metathorax small, triangular, poste- 

 rior angle much produced and acute ; abdomen oval, pale, 

 yellow white and hairy ; legs pale, ferruginous ; tibiae very 

 thick; anterior femora angular. Length . 



I found a single specimen of this species on the Black 

 Guillemot (Uria Grylle). 



30. DOCOPHORUS ROSTRATUS. (Louse of the White Owl.) 



Plate II. Fig. 4. 



Pale chestnut yellow ; clypeus elongate, produced, nar- 

 row and truncate. 



Docophorus rostratus. Burmeister Handbuch ii. pt.ii. p. 427. spe. 20. 



Elongate, pale chestnut yellow, smooth and shining ; head 

 acuminate ; clypeus narrow, much produced and truncate, 

 with an oblong depression near the apex, and a transverse 

 depressed line between the trabeculae, lateral margin sinu- 

 ated before the eyes, base rotundate, truncate ; eyes pro- 

 minent and black ; trabeculae acute ; antennae cylindrical, 

 the first joint much the largest; prothorax transversely oval ; 

 metathorax the width of the head, lateral margins rotun- 

 date, base acutely angular, ciliated with pale yellow hairs ; 

 abdomen elongate ovate, milky white, the first, last two, 

 and the lateral fascia of the six intermediate chestnut 

 yellow ; legs long, rather slender, especially the two pos- 

 terior pair; femora of the first and second pair enlarged. 

 Length 1. 



Found upon the White Owl (Strix flammea), and com- 

 municated by the Rev. Leonard Jenyns and my brother. 





31. DOCOPHORUS PARI. Denny. (Louse of the Titmouse.) 



Plate VI. Fig. 6. 



Pale fulvous, shining and hairy ; abdomen with a dull 

 chestnut margin and pitchy spots. 



