22 BRITISH ANOPLURA. 



50. Nirmus tenuis. 



Nirmus tenuis, Burm. Handb. ii. 429 ; Denny, Mon. Anopl. Brit. 



148. pi. 11. f. 9. 

 Philopterus tenuis, Gervais, Apteres, iii. 349. 

 On the Sand Martin. 



51. Nirmus Scolopacis. B.M. 

 Nirmus Scolopacis, Denny, Mon. Anopl. Brit. 149. pi. 11. f. 8. 

 Philopterus scolopacis, Gervais, Apteres, iii. 349. 



On the Common Snipe. 



52. Nirmus cyclothorax. 



Nirmus cyclothorax, Burm. Handb. ii. 429 ; Denny, Mon. Anopl. 



Brif. 150. pi. 11. f. 6. 

 Philopterus cyclothorax, Gervais, Apteres, iii. 349. 

 On the Mountain Finch. 



53. Nirmus furvus. 



Nirmus furvus, Burm. Handb. ii. 427 ; Denny, Mon. Anopl. Brit. 



151 (ref.). 

 Philopterus furvus, Gervais, Aptires, iii. 349. 

 On Tringoides macularia ; Totanus glottis ; Cinclus interpres. 



54. Nirmus Nycthemerus. 



Nirmus Nycthemerus, Burm. Handb. ii. 428 ; Denny, Mon. Anopl. 



Brit. p.'lSl (ref.). 

 Pediculus Sterna?, Fabr. Syst. Antl. 346. 

 Philopterus nycthemerus, Gervais, Apteres, iii. 350. 

 On Sterna minuta. 



55. Nirmus eugrammicus. 



Nirmus eugrammicus, Burm. Handb. ii. 428 ; Denny, Mon. Anopl. 



Brit. 151 (ref.). 

 Philopterus grammicus, Gervais, Apteres, iii. 350. 

 On Larus minutus. 



56. Nirmus punctatus. 



Nirmus punctatus, Burm. Handb. ii. 428 ; Denny, Mon. Anopl 



Brit. 151 (ref.). 

 Philopterus punctatus, Gervais, Apteres, iii. 344. 

 On the Larus ridibundus. 



57- Nirmus stenopyx. 



Nirmus stenopyx, Burm. Handb. ii. 428 ; Denny, Mon. Anopl. 



Brit. 151 (ref.). 

 Philopterus stenopyx, Gervais, Apteres, iii. 350. 

 On the Anas rufina. 



