ANOPLURORUM BRITANNIA. 139 



metathorax transverse, equal in width with the former, 

 channelled, posterior margin rotundate ; abdomen clavi- 

 form ; stigmatic orifices prominent; legs very thick, pale 

 yellow ; tibiae clavate ; ungues chestnut. Length . 



I obtained two specimens of this species from a Thick- 

 Kneed Plover (CEdicnemus crepitans). 



38. NIRMUS STRAMINEUS. Denny. (Louse of the 



Woodpecker.) 

 Plate VIII. Fig. 9. 



Pale yellow-white, shining, smooth, and sub-diaphanous, 

 lateral margin of the abdomen pale, testaceous ; legs thick 

 and strong. 



Head sub-conical ; clypeus rotundate ; vertex concave ; 

 antennae slender and filiform ; trabeculae acute ; eyes very 

 small ; prothorax transverse, rotundate before and behind ; 

 metathorax wider than the head, transversely sub-conical, 

 posterior margin rotundate, slightly setose ; abdomen 

 oblong, sub-clavate, lateral margin sub-crenate ; legs thick; 

 tibiae clavate ; ungues slender. Length f . 



In the valuable collection of Nirmi, which the Rev. L. 

 Jenyns obligingly forwarded at the commencement, and 

 allowed me to retain during the entire progress of this 

 work, is a specimen of this species from the Great Spotted 

 Woodpecker (Picus major). To Mr. Tweedy I am also 

 indebted for specimens taken from the Green Woodpecker 

 (Picus viridis) at Truro. 



39. NIRMUS PHALAROPI. Denny. (Louse of the Gray 



Phalarope). 

 Plate VIII. Fig. 6. 

 Pale testaceous-yellow ; head pale chestnut ; abdomen 



