314 Dr. T. A. Chapman on the Life-History 
nary colchicus. Ihave not been able to give measurements, 
as they are very difficult to obtain from live birds not at all 
tame. The voice of P. elegans is harsh and guttural, very 
different from that of any of its relatives. 
XIX.—Some Facts towards a Life-History of Rhipiphorus 
paradoxus. By T. ALGERNON CHAPMAN, M.D., Hereford. 
[Plate XVL] 
BEFORE recording my own observations on Rhipiphorus, I 
desire to congratulate Mr. Murray on his having confirmed the 
observations of the late Mr. Stone, and on his having retracted 
all the doubts that he had cast on the credibility of the history 
of Rhipiphorus as set forth by that observer. 
am, however, much astonished when he further owns that 
the inhabitants of his doubly tenanted cells of last year were 
not the pupe of Rhipiphorus as he described them *, but the 
larve; and doubtless also their fellow inhabitants, described 
by him as injured wasp-pups, were in reality the partially 
devoured wasp-larve. Now, had he told us that these were 
larve, and not pupze, there had been no room for any difficulty 
such as was raised by Mr. Murray. Nay, the very basis ot 
his attack on Mr. Stone would have been but a confirmation of 
would merely object to such extraordinary ideas of develop- 
ment as Mr. M 
* Mr. Murray's words are,—“In three instances I found two (gone in 
po same cell, a wasp-pupa and a Rhipiphorus-pupa—a fact which seems 
the same cell, and undergone their metamorphoses i 
(Ann. & Mag. Nat. Hist, Nov. 1869, p.349.) 
