Kew : Lincolnshire Pseudoscorpions. 



203 



the same species of beetle.* Dr. Balzan mentions the occur- 

 rence of Chernes argentinus Thorell on a night-flying" Long-icorn 

 of the genus Achryson.'\ Other observations relate to Lamelli- 

 corns of the genus Passalus. Mr. C. O. Waterhouse records 

 the discovery of two specimens of a ' Chelandps ' under the 

 elytra of Passalus picnctiger from Rio Janeiro ;t and in Australia, 

 according to Hagen, an undescribed Pseudoscorpion has been 

 found on Passalus polil us. \\ Finally, we have a note from North 

 Celebes by Professor Hickson. In pulling off the elytra of a 

 Longicorn, Batocera celebiana, he found fixed to the wings 

 a large number of little creatures, which turned out to be 

 Chelifers or tailless Scorpions. § 



As regards the kinds of Pseudoscorpions in which the habits 

 above noted obtain, it must be remembered that with animals of 

 the present kind names, in the hands of writers other than 

 specialists, have not the value they usually possess in more 

 familiar departments of zoology. Chelifer cancroides, for 

 instance, derived from the Linnean Acarus or Phalangium 

 cancroides, was long a stock name for Pseudoscorpions of 

 almost any kind ; and its use, more especially by earlier 

 writers, rarely implies any attempt at specific discrimination. 

 Next to the Linnean species, in point of date of bestowal, comes 

 Scorpio cimicoides Fabr. — afterwards Chelifer or Chernes cimi- 

 coides — and this title also, it can hardly be doubted, has often 

 been applied to species other than the one to which it is now 

 attached. The German arachnologist L. Koch states his 

 experience that the species found attached to flies is always 

 Chernes reussii C.Koch= Chernes nodosus.il Stecker, referring 

 to this remark, states that Chernes cimicoides, not Chernes 



* H. Hag-en, 'Chelifer als Schmarotzer auf Insekten,' Stettiner entomo- 

 logische Zeitung, XX. (1859), p. 202 ; 1867, I.e. ; 1868, I.e. ; 1879, I.e. 



f L. Balzan, Annali del Museo Civico di Storia Naturale di Genova (2), 

 IX. (1890), p. 416 ; and Annales de la Socicke^ entomologique de France, LX. 

 (1891), p. 498. 



X C. O. Waterhouse, Transactions of the Entomological Society of 

 London, 1875, p. xii. ; and Entomologist's Monthly Magazine, XII. (1875-6), 

 p. 20. 



il H. Hagen, 1879, I.e. 



?; S. J. Hickson, ' Naturalist in North Celebes,' 1889, p. 101. 

 **M. C. Cooke, Journal of the Ouekett Microscopical Club, I. (1868 . 

 V- 15- 



I I L. Koch, ' Uebersiehtliche Darstellung der europaischen Chernetiden 

 (Pseudoscorpione),' 1873, p. 6. 



1901 July _>. 



