78 Proceedings of the Royal Irish A cademy. 



the result of what has ah-eady beeu doue it has become possible to draw up 

 a list of fourteen Irish species. This total, which is likely to be somewhat 

 but not greatly increased, includes two species which are unknown in Britain ; 

 but, on the other hand, Britain has ten species which have not yet been found 

 in Ireland. Some of these latter, e.g. Clielifer {Chcrncs) scorpioides Herm. 

 and Clithonius ortlwdadylus (Leach), will almost certainly be the rewards of 

 future field-work. But others, which are eastern or south-eastern in 

 distribution in Britain, e.g. Clielifer Latreillii Leach, Clielifer {Chernes) 

 Wideri C. L. Koch, Clielifer \Chcrnes) cyrneus (L. Koch), and Clithonius tenuis 

 L. Koch, are probably absent. Of the two main dis^sions of the Order — 

 Panctenodactyli and Hemictenodactyli — Ireland is rich in the latter, but 

 remarkably poor in the former. 



The plan adopted here is that of giving the first known occurrence of each 

 species in the recognized county-di\'isious, i.e., those of Praeger's " Irish 

 Topographical Botany." In the case of all the divisions listed the specimens 

 have been seen by me. When the occurrences have been already made known 

 in print, that fact is indicated by numbers corresponding to those in part ii 

 of the list of books, etc., which appears at the end of this paper. That part 

 of the list is, I believe, a complete bibliography to date of this section of the 

 Irish fauna. 



1. Chelifer ( Chernes j nodosus Schr. — This species, and the next, occur 

 in manure-heaps, accumulations of garden-refuse, etc., and their range is 

 influenced by man. They have the habit of attaching themselves, by 

 closure of the fingers of one of the palps, to the legs of flies, and they are apt 

 to come to notice in this position in autumn. 



Down. Downpatrick 1911 (24): on flies' legs — Pi. Patterson. 



2. Chelifer (Chemes; Godfreyi Kew. — Tn"The Irish Naturahst," 1910. 

 p. 138 (19), is a record (headed "Chelifer cancroides" but relating probably 

 to thus species) of two specimens taken in 1908 from legs of a house-fly at 

 Piathmines, Co. Dublin. Specimens taken in 1910, and seen by me, were 

 from the same house at Eathmines. Musca domestica is the fly to the 

 legs of which this species, and the preceding one, usually attach themselves ; 

 but Mr. Halbert recently sent me C. Godfrei/i, one of two individuals found 

 in September last on the legs of Stomorys ixdcitratis, at Glasnevin, Co. Dublin. 



Dublin. Eathmines 1910 (20, 23) : on flies' legs— X. H. Stephens. 



Antrim. Belfast lH 1 5 : on flies' legs — J. A. S. Stendall. 



o. Chelifer (Chemes, dubius (Camb.^. — This is a ground species, occurring 

 usually under embedded stones and less commonly under loose stones or 

 among debris. A record by Eobert Templeton, in 18-36 (9), of Clielifer 

 parasita Herm. " caught in Island Magee, county Antrim, and at present in 



