18 James Waterston, 



parasites of these birds are in both groups of Islands practically 

 identical. The Docophorus of the Faroe Raven and tlie Menopon 

 of tlie Faroe Wren are possibly somewhat darker forms than usual, 

 but little stress can be laid on tliis. 



On ÄrquateUa maritima maritima (Beünn.) Dr. Dampf coUected some 

 immature and barely determinable examples of a Colpocephalum - a genus 

 which the writer, in spite of assiduous searching has hitherto failed 

 to find on examples of this host in Shetland. Tliere is nothing 

 however in the collection to show local origin. The same hosts 

 elsewhere wonld, we believe, yield parasites indistinguishable 

 from those taken in Faroe. 



Although Dr. Dampf found himself hampered as a collector by 

 the law prohibiting the shooting of land birds, it is evident that 

 the examinations he was able to make, were thorough. Thus e. g. 

 he has secured all the species normally found on the Fulmar-Petrel, 

 — not by any means an easy task. 



On the arrival of the collection, it was found that the Contents 

 of two tubes had become mixed in post. Fortunately it proved 

 a simple matter to separate the insects according to their hosts. 

 In two other cases parasites had evidently occurred on unusual 

 hosts viz. Docophorus lari Denny on JSumenius phaeopus and Menopon 

 mesoleucum Nitzsch on Larus fuscus. Both instances of "straggling" 

 would appear to be genuine. 



Two tubes were labelled, as regards the host, "Regenpfeifer?''. 

 These tubes held a combination of parasites peculiar to Üharadrius 

 hiaticula, which undoubledly must have been the host in question. 



The arrangement adopted is that of Kellogg in: Wytsman's 

 "Genera Insectorum", 66rae Fascicule, Mallophaga (1908). As a rule 

 only the reference to the original description or first use of the 

 name of a species is given, but in one or two instances later writers 

 are quoted for the sake of more adequate figures or descriptions. 



We have given all Nitzsch's species as dating from 1818 — 

 the year in which the Professor of Halle published his classical list 

 in Germar's Magazine. Objection of course may be taken to this 

 since many of Nitzsch's species were represented tili 1874 merely 

 by the types in Nitzsch's collection and a name in the list referred 

 to. It is therefore a moot point how far such species should be 

 accepted. In 1874 Giebel, who had access to his predecessors 

 collection, published fuller descriptions of the types in his great 

 "Insecta Epizoa". In all cases where Nitzsch's names are used, 



