ANOPLURORUM BRITANNIA. 169 



lation. Dr. Burmeister says "fasciis dbdominalibus fusco- 

 nigris, utrinque puncto testaceo notatis ; 1, 6 et 7 inter- 

 ruptis." The latter part of this character applies, as I have 

 shown above, only to the male, for out of 30 or 40 females, 

 I did not see one but what had the fasciae entire and vice 

 versa. This species is recorded as the parasite of the Vul- 

 tur cinereus and Aquila albicilla ; my specimens, however, 

 I took from a Golden Eagle ( Aquila Chrysaetos), which 

 had an immense number upon it, but more especially on 

 the quills of the primaries and secondaries. As I found 

 quantities of the Nits and the Insect in all its stages, I 

 could not help noticing the different appearance it had 

 according to its age. In its first stage the whole Insect 

 was a pale yellow-white, next with a narrow black fascia 

 down the lateral margin of each segment of the abdomen, 

 thirdly with fulvous spots surrounded with a fuscous margin 

 down each side but no connecting fascia in the centre of 

 each segment, and after arriving at maturity, the colour 

 and markings varies much as to intensity. In some the 

 lateral spots are a bright fulvous, and in others nearly ob- 

 scured. This species resembles L. sulcifrons somewhat 

 about the head, but is readily distinguished by its larger 

 size, more showy appearance, slender legs, well marked 

 thorax, &c. 



5. LIPEURUS SULCIFRONS. Denny. (Louse of the 

 Cinereous Eagle.) 



Plate XIV. Fig. I. 



Pitchy- chestnut, punctured and pubescent; head with 

 several oblique and transverse sulci at the base ; abdomen 

 ochraceous, with deep chestnut margin. 



Head oblong and obtuse, widest at the base, deep chest- 

 nut, anterior part pale ochraceous, with three pitchy-black 



