202 



Kew ; Lincolnshire Psendoscorpions . 



The Chelifer was attached to the hard tibia. ~ k Professor Leydig, 

 in his Sketch-fauna of Tubing-en, has recorded observations of 

 the same kind : he states that he has more than once seen 

 Pseudoscorpions on the Phalangium opilio.j In the case of 

 Coleoptera, Pseudoscorpions do not, as far as is known at 

 present, attach themselves to the legs. They occur on the 

 dorsal surface of the hind-body, hidden away under the wings 

 and elytra ; and according to Hagen the species thus found 

 pertain mainly to Cherries. % Several observations made in 

 North America relate to the large and common elater Alans 

 oculatns. Professor Leidy, in 1877, recorded the finding of six 

 individuals of his Chernes alius beneath the elytra of this beetle 

 at Easton. || A similar observation — Alans oculatns with one 

 Chelifer — had previously been reported from Ohio ;§ and 

 Professor Haldeman, in 1848, had recorded the finding of nine 

 near the extremity of the hind-body, under the wings and 

 elytra, of this same beetle. ** Numerous cases have been 

 reported from South America. Dr. v. Jhering, writing from 

 Rio Grande do Sul, says that he has often found Pseudo- 

 scorpions under the elytra of two species of the brilliantly- 

 luminous Elaterids of the genus Pyrophorus ; and he once found 

 one, similarly situated, on the great palm-weevil (yRhynchophorus 

 p>almarum).jj Professor Leydig, in dissecting a spirit specimen 

 of the harlequin-beetle (Acrocinus longimanus) — a great South 

 American Longicorn — found a solitary Chelifer in the usual 

 position;;! and Hagen once received three specimens from 

 Surinam with a note that they were found under the elytra of 



* W. W. Spicer, 'Helps to Distribution,' Hardwicke's Science-Gossip, 

 1867, pp. 244-5. 



t F. Leydig-, op. cit. 



X H. Hag-en, 1879, I.e. 



II J. Leidy, I.e. 



§ B. P. Mann, Proceedings of the Boston Society of Natural History, 

 XL (1868), pp. 325. 



** S. S. Haldemann, Silliman's American Journal of Science and Arts (2), 

 VI. (1848), p. 148. 



ft H. v. Jhering, ' Zum Commensalismus der Pseudoscorpione,' Zoolo- 

 g-ischer Anzeiger, XVI. (1893), pp. 346-7. 



Xt F. Leydig, op. cit. ; Verhandlungen des naturhistorischen Vereines 

 der preussischen Rheinlande u. Westfalens, XXXVIII. (1881), p. 180; and 

 * Zum Parasitismus der Pseudoscorpioniden,' Zoologischer Anzeiger, XVI. 

 (1893), pp. 36-7. • 



Naturalist, 



