]/() MONOGRAPHIA 



spots on each side, and one in the centre, the base with 

 several oblique sulci on each side, a deep tongue-shaped 

 one from the antennae down to the base, and a series of 

 sigmoid oblong and transverse impressions in the centre ; 

 eyes large and prominent ; antennae in the female thick, 

 somewhat setaceous and tawny-yellow, the first three joints 

 the largest ; prothorax nearly orbicular, convex and punc- 

 tured, slightly produced in front with a deep fovea on each 

 side, and one at the base, channelled in the centre ; meta- 

 thorax quadrate, anterior angles obtuse, with a deep hume- 

 ral sinus on each side, base truncate, and ciliated with 

 strong bristles ; abdomen oblong ovate, ochraceous, the 

 sutures paler, with a row of impressed punctures giving 

 origin to setae, the first seven segments with a lateral trans- 

 verse band of deep chestnut edged with black ; legs thick 

 and strong, obscure chestnut. Length If. 



I have ventured to name this species in allusion to the 

 beautiful sculpture of the head, from a supposition that it 

 is undescribed, as I have never seen any other specimens 

 than those in my own possession, which I received from my 

 brother, who found them upon the Cinereous Eagle 

 (Aquila albicilla), in Norwich. I have one specimen with 

 the dorsal line nearly white, all those which I possess are 

 females, I am therefore ignorant of the character of the 

 male. 



6. LIPEURUS TADORNJE. (Louse of the Shieldrake.) 



Plate XIV. Fig. 6. 



Elongate, milky- white, smooth, and shining ; head, tho- 

 rax and abdomen with black marginal spots ; tarsi ferru- 

 ginous. 



Ornithobius tadornoe. Leach MSS. ? 



Head cordate, with a semicircular impressed line passing 



