ANOPLURORUM BRITANNIA. 135 



much produced in the centre and acutely angular; abdomen 

 claviform, chestnut, median line somewhat fuscous, last 

 two segments bright fulvous, stigmatic orifices large, lateral 

 margin with a deep serrated black band, sutural margins 

 pale; legs pale chestnut. Length $% $ f. 



This species I have found, though sparingly, upon the 

 Corn-Crake (Crex pratensis), and Mr. Thompson took 

 one specimen from the Redshank Sandpiper (Totanus 

 calidris). 



32. NIRMUS STREPSILARIS. Denny. (Louse of the 

 Turnstone.) 



Plate XI. Fig. 4. 



Fuscous, smooth and shining, lateral margin pitchy black ; 

 head dark chestnut, with two semicircular transverse black 

 fasciae in front. 



Head elongate, sub-triangular ; clypeus produced, with 

 a sub-quadrate depression in front, two broad black trans- 

 verse fasciae before the antennae, and an arcuate depressed 

 line on each side from the base of the antennae to the 

 occiput, base rotundate ; eyes small, black ; antennae pale 

 chestnut, slender; trabeculae small and acute prothorax 

 much narrower than the head, transverse, dark chestnut; 

 metathorax fuscous, much produced posteriorly and angular, 

 channelled in the centre ; abdomen obovate, fuscous, stig- 

 matic areolas paler, lateral margin pitchy black, last two 

 segments chestnut ; legs dark chestnut. Length \. 



Found on the Turnstone (Strepsilas interpres), by Mr. 

 Thompson at Belfast, and Mr. Heysham at Carlisle. 



