144 MONOGRAPHIA 



44. NIRMUS NUMENII. Denny. (Louse of the Curlew.) 



Plate IX. Fig. 6. 



Obscure chestnut, shining and smooth ; head oblong, 

 sinuated before the eyes ; metathorax sub -trapezoidal ; ab- 

 domen with a deep fuscous shade down the centre. 



Head oblong, sub-conical, clypeus rotundate and testa- 

 ceous, lateral margin sinuated before the eyes, with two 

 dark impressed diagonal lines from the antennae to the 

 occiput; eyes very flat; antennae slender, filiform, pale, 

 testaceous yellow ; trabeculse very small ; prothorax nearly 

 as wide as the head, quadrate posterior margin rotundate, 

 centre channelled ; metathorax sub-trapezoidal, posterior 

 margin setose; abdomen claviform, darker than the head 

 and thorax, with a fuscous shade down the median line ; 

 legs rather stout, pale chestnut, anterior femora in the male 

 enlarged, sub-lobate, rotundate, posterior femora somewhat 

 angular. Length 1 $ l. 



Communicated by William Thompson, Esq. from the 

 Curlew (Numenius arquata), from which bird I have also 

 obtained it in Leeds, as well as the Coot (Fulica atra). 



45 NIRMUS PH^OPI. Denny. (Louse of the Whimbrel 



Curlew.) 

 Plate X. Fig. 7. 



Pale ochraceus, shining and smooth, lateral margin 

 pitchy, sutural margin pale; metathorax sub-trapezoidal, 

 posterior margin acuminate. 



Head oblong, conical, sinuated before the eyes, fulvous, 

 lateral margin pitchy-black, with a transverse impressed 

 line anteriorly, and two longitudinal lines from the an- 

 tennas to the occiput, base concave ; antennae slender, 

 filiform, pale fulvous; trabeculae small and acute; prothorax 



