34 James Waterston, 



The sraall form which has the largest ränge of host may be 

 subcingulatus Nitzsch, while actophüus Kellogg et Chapman appears 

 to refer to the same insect We have seen the medium form oiily 

 from Limosa and assume here that it corresponds to true holophaeus 

 Nitzsch. This however is not beyond question. On Numenius occur 

 the largest exponeuts of the series and there can be little donbt 

 that Benny signalised this large type in his N. numenii (Numenius 

 arquata) and JSf. plmeopi {Numenius phaeopus). It is almost equally 

 certain that Piaget's inaequalis {Numenius arquata) is the form 

 Denny called numenii. This being so the new name would appear 

 to be imjustified. 



These Nirmus parasites of Numenius arquatus and Numenius 

 phaeopus are very close to one another. But examples from the 

 curlew {N. arquata) are 1. uniformly darker, 2. generally more robust 

 and 3. in the male genitalia slightly different from the corresponding 

 form on the whimbrel {N. phaeopus). But we have seen too few (^^ 

 from the latter host to venture a decided opinion, nor is this the 

 place to enter minutely into a discussion of the value to be attached 

 to such diiferences as have been mentioned above. We note them 

 in the present connection merely to explain our preference for the 

 name phaeopi, which Denny applied to the paler insect. In view 

 of these notes the following references are given. 



N. subcingulatus Nitzsch, in: Giebel, Ins. Epiz., p. 158 (1874). 



N. holophaeus Nitzsch, in: Giebel. Ins. Epiz., p. 158, tab. 5, flg. 1 

 (1874). 



N. numenii Denny, Monogr. Anopl. Brit., p. 144, tab. 9, fig. 6 

 (1842). 



N. inaequalis Piaget, Les Pediculines, p. 176, tab. 15, fig. 1 (1880). 



N. actophilus Kellogg and Chapman, New Mallophaga, pt. 3, 

 p. 78, tab. 6, fig. 4 (1899). 



Nirmus varius Nitzsch (1818). 



iV. varius NiTZSCH, in: Giebel, Ins. Epiz., p. 130, tab. 7, figs. 2, 3 

 (1874). 



One example very immature. Corvus corax (2 expl.). 

 Gjanoyri, Strömö, 16., 17. 9. 1912. K. Scheeibek leg. 



Nir'tniis ^onarius Nitzsch (1818). 

 N. zonarius Nitzsch, in: Giebel, Ins. Epiz., p. 166 (1874). 

 $. Ärquatella maritima. 



