1 14 MONOGRAPHIA 



sub-angular, and produced, deeply marginate and convex ; 

 abdomen sub-ovate, pale yellow-white, with transverse 

 chestnut or brown fulvous bands ; sutures ciliate ; legs pale 

 fulvous, short and thick. Length f . 



I have twice found this species on the Cinereous Eagle 

 (Aquila albicilla), but notin great numbers. 



3. NIRMUS TURMALIS. (Louse of the Great Bustard.) 



Plate VI. Fig. 10. 



Chestnut and shining; head cordate; abdomen elliptical, 

 with the dorsal and sutural fasciae pale yellow-white ; legs 

 long and slender. 



Nirmus turmalis. Nitzsch. MSS. 



Head cordate, with two diagonal lines from the trabeculse 

 to the occiput ; eyes fuscous ; trabeculae very small and 

 acute ; antennae slender, and filiform ; prothorax small and 

 transverse, with a fuscous spot on each lateral margin ; 

 metathorax sub-conical, lateral angles acute, anterior, with 

 two fuscous uncinate spots ; abdomen claviform, the first 

 and last three segments deep chestnut, the five interme- 

 diate with a broad chestnut band on each side ; the dorsal 

 fascia and sutural margins pale yellow- white, ciliated with 

 long hairs, lateral margin with a narrow dark line, stigmata 

 large and prominent ; legs long and slender, pale fulvous. 

 Length 1. 



The extreme rarity of the Bustard (Otis tarda) in this 

 country, rendered the idea almost hopeless of obtaining the 

 louse from a British specimen. I have therefore drawn my 

 figure from German specimens, taken from the Bustard in 

 the neighbourhood of Halle, for the opportunity of doing 

 which I am indebted to the zeal of Dr. Burmeister. 



