148 MONOGRAPHIA 



sham, on the Kentish Plover (Charadrius Cantianus), by 

 Mr. G. R. Denny, and Dr. Burmeister gives the Wood 

 Sandpiper (Totanus glareola). 



49. NIRMUS FISSUS. (Louse of the Little-Ringed Plover.) 



Plate X. Fig. 8. 



Obscure chestnut, shining, and smooth, lateral margin 

 black ; clypeus obtuse ; legs very thick. 



JVirmus fissus ? Nitzsch Germ. Mag. Hi. p. 291. Steph. Cat. pt. ii. 291. 

 Burmeister's Handbuch, ii. pt. ii. p. 427. spe. 4. Ninnus crassipes, 

 Denny MSS. 



Head and thorax chestnut, the former with a depression 

 in front, and two lines from the antenna? to the occiput; 

 clypeus obtuse, ochraceous, lateral margin black, sinuated 

 before the eyes, base concave; antennse short, thick, and sub- 

 filiform, the first two joints the largest and cylindrical ; tra- 

 beculae very small and acute ; eyes obscure ; prothorax 

 transverse, channelled in the centre ; abdomen sub-clavate 

 in the male, pyriform in the female, dull chestnut, the first 

 and last segments lighter, lateral margin black ; sutures 

 pale; legs thick, pale chestnut; femora much enlarged, 

 superior margin dusky, posterior pair sub-dentate beneath. 

 Length J. 



For examples of this species I am indebted to Mr. Mans- 

 field of Birmingham, who obtained them from a specimen 

 of the Little Ringed Plover (Charadrius minor), which 

 came into the possession of Joseph Gurney, Esq. of Earl- 

 ham, near Norwich; Mr. Thompson found the same species 

 upon the Redshank (Totanus calidris) at Belfast. 



50. NIRMUS TENUIS (Louse of the Sand- Martin.) 



Plate XI. Fig. 9. 

 Obscure chestnut, shining, and smooth ; clypeus obtuse, 



